The nearest equivalents would be icode and bcode as used by scalac, view Miguel Garcia's site on the Scalac optimiser for more information, here: http://magarciaepfl.github.io/scala/
You might also consider Java bytecode itself to be your intermediate representation, given that bytecode is the ultimate output of scalac.
Or perhaps the true intermediate is something that the JIT produces before it finally outputs native instructions?
Ultimately though... There's no single place that you can point at an claim "there's the intermediate!". Scalac works in phases that successively change the abstract syntax tree, every single phase produces a new intermediate. The whole thing is like an onion, and it's very hard to try and pick out one layer as somehow being more significant than any other.
I solved this issue after changing the "Gradle Version" and "Android Plugin version".
You just goto "File>>Project Structure>>Project>>" and make changes here. I have worked a combination of versions from another working project of mine and added to the Project where I was getting this problem.
Specify maven.compiler.source and target versions.
1) Maven version which supports jdk you use. In my case JDK 11 and maven 3.6.0.
2) pom.xml
<properties>
<maven.compiler.source>11</maven.compiler.source>
<maven.compiler.target>11</maven.compiler.target>
</properties>
As an alternative, you can fully specify maven compiler plugin. See previous answers. It is shorter in my example :)
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.0</version>
<configuration>
<release>11</release>
</configuration>
</plugin>
</plugins>
</build>
3) rebuild the project to avoid compile errors in your IDE.
4) If it still does not work. In Intellij Idea I prefer using terminal instead of using terminal from OS. Then in Idea go to file -> settings -> build tools -> maven. I work with maven I downloaded from apache (by default Idea uses bundled maven). Restart Idea then and run mvn clean install
again. Also make sure you have correct Path, MAVEN_HOME, JAVA_HOME environment variables.
I also saw this one-liner, but it does not work.
<maven.compiler.release>11</maven.compiler.release>
I made some quick starter projects, which I re-use in other my projects, feel free to check:
I have added in Application Class
@Bean
@ConfigurationProperties("app.datasource")
public DataSource dataSource() {
return DataSourceBuilder.create().build();
}
application.properties I have added
app.datasource.url=jdbc:mysql://localhost/test
app.datasource.username=dbuser
app.datasource.password=dbpass
app.datasource.pool-size=30
More details Configure a Custom DataSource
It seems fetch support URL scheme with "http" or "https" for CORS request.
Install node fetch library npm install node-fetch
, read the file and parse to json.
const fs = require('fs')
const readJson = filename => {
return new Promise((resolve, reject) => {
if (filename.toLowerCase().endsWith(".json")) {
fs.readFile(filename, (err, data) => {
if (err) {
reject(err)
return
}
resolve(JSON.parse(data))
})
}
else {
reject(new Error("Invalid filetype, <*.json> required."))
return
}
})
}
// usage
const filename = "../data.json"
readJson(filename).then(data => console.log(data)).catch(err => console.log(err.message))
Ensure if no image in drawable folder is corrupted.
In Typescript and ES6 you can also use for..of:
for (var product of products) {
console.log(product.product_desc)
}
which will be transcoded to javascript:
for (var _i = 0, products_1 = products; _i < products_1.length; _i++) {
var product = products_1[_i];
console.log(product.product_desc);
}
If you look at the exception stack trace it says that, it failed to convert from ABDeadlineType
to DeadlineType
. Because your repository is going to return you the objects of ABDeadlineType
. How the spring-data-jpa
will convert into the other one(DeadlineType
). You should return the same type from repository and then have some intermediate util class to convert it into your model class.
public interface ABDeadlineTypeRepository extends JpaRepository<ABDeadlineType, Long> {
List<ABDeadlineType> findAllSummarizedBy();
}
Create file - res / xml / network_security.xml
In network_security.xml ->
<?xml version="1.0" encoding="utf-8"?>
<network-security-config>
<domain-config cleartextTrafficPermitted="true">
<domain includeSubdomains="true">192.168.0.101</domain>
</domain-config>
</network-security-config>
Open AndroidManifests.xml :
android:usesCleartextTraffic="true" //Add this line in your manifests
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:usesCleartextTraffic="true"
android:theme="@style/AppTheme">
Hope it would be helpful.
extension String {
func getSubString(_ char: Character) -> String {
var subString = ""
for eachChar in self {
if eachChar == char {
return subString
} else {
subString += String(eachChar)
}
}
return subString
}
}
let str: String = "Hello, playground"
print(str.getSubString(","))
Use the function Contains
from the strings package.
import (
"strings"
)
strings.Contains("something", "some") // true
I had a similar problem, too: I wanted numbers and null on an input field that is not required. Worked through a number of different variations. I finally settled on this one, which seems to do the trick. You place a Directive, ntvFormValidity
, on any form control that has native invalidity and that doesn't swizzle that invalid state into ng-invalid.
Sample use:
<input type="number" formControlName="num" placeholder="0" ntvFormValidity>
Directive definition:
import { Directive, Host, Self, ElementRef, AfterViewInit } from '@angular/core';
import { FormControlName, FormControl, Validators } from '@angular/forms';
@Directive({
selector: '[ntvFormValidity]'
})
export class NtvFormControlValidityDirective implements AfterViewInit {
constructor(@Host() private cn: FormControlName, @Host() private el: ElementRef) { }
/*
- Angular doesn't fire "change" events for invalid <input type="number">
- We have to check the DOM object for browser native invalid state
- Add custom validator that checks native invalidity
*/
ngAfterViewInit() {
var control: FormControl = this.cn.control;
// Bridge native invalid to ng-invalid via Validators
const ntvValidator = () => !this.el.nativeElement.validity.valid ? { error: "invalid" } : null;
const v_fn = control.validator;
control.setValidators(v_fn ? Validators.compose([v_fn, ntvValidator]) : ntvValidator);
setTimeout(()=>control.updateValueAndValidity(), 0);
}
}
The challenge was to get the ElementRef from the FormControl so that I could examine it. I know there's @ViewChild, but I didn't want to have to annotate each numeric input field with an ID and pass it to something else. So, I built a Directive which can ask for the ElementRef.
On Safari, for the HTML example above, Angular marks the form control invalid on inputs like "abc".
I think if I were to do this over, I'd probably build my own CVA for numeric input fields as that would provide even more control and make for a simple html.
Something like this:
<my-input-number formControlName="num" placeholder="0">
PS: If there's a better way to grab the FormControl for the directive, I'm guessing with Dependency Injection and providers
on the declaration, please let me know so I can update my Directive (and this answer).
Try to use the latest com.fasterxml.jackson.core/jackson-databind
.
I upgraded it to 2.9.4
and it works now.
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.9.4</version>
</dependency>
You might want to you use the @property
decorator,
>>> class Foo():
... @property
... def todo(self):
... raise NotImplementedError("To be implemented")
...
>>> f = Foo()
>>> f.todo
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "<stdin>", line 4, in todo
NotImplementedError: To be implemented
As asyncTask are deprecated we may use executor service. OR you can also use ViewModel with LiveData as explained in other answers.
For using executor service, you may use something like below.
public class DbHelper {
private final Executor executor = Executors.newSingleThreadExecutor();
public void fetchData(DataFetchListener dataListener){
executor.execute(() -> {
Object object = retrieveAgent(agentId);
new Handler(Looper.getMainLooper()).post(() -> {
dataListener.onFetchDataSuccess(object);
});
});
}
}
Main Looper is used, so that you can access UI element from onFetchDataSuccess
callback.
Here is the new dependency (August 2017)
<!-- https://mvnrepository.com/artifact/org.glassfish.jersey.core/jersey-common -->
<dependency>
<groupId>org.glassfish.jersey.core</groupId>
<artifactId>jersey-common</artifactId>
<version>2.0-m03</version>
</dependency>
In my case I forgot to add the return type to a function in my inherited class from RoomDatabase:
abstract class LocalDb : RoomDatabase() {
abstract fun progressDao(): ProgressDao
}
The ProgressDao return type was missing.
In some cases _hostingEnvironment.ContentRootPath
and System.IO.Directory.GetCurrentDirectory()
targets to source directory. Here is bug about it.
The solution proposed there helped me
Path.GetDirectoryName(Assembly.GetEntryAssembly().Location);
In my condition when I got an exception " Unable to start embedded Tomcat servlet container",
I opened the debug mode of spring boot by adding debug=true
in the application.properties,
and then rerun the code ,and it told me that java.lang.NoSuchMethodError: javax.servlet.ServletContext.getVirtualServerName()Ljava/lang/String
Thus, we know that probably I'm using a servlet API of lower version, and it conflicts with spring boot version.
I went to my pom.xml, and found one of my dependencies is using servlet2.5, and I excluded it.
Now it works. Hope it helps.
For CentOS, RHEL, Fedora:
$ yum search php-xml
============================================================================================================ N/S matched: php-xml ============================================================================================================
php-xml.x86_64 : A module for PHP applications which use XML
php-xmlrpc.x86_64 : A module for PHP applications which use the XML-RPC protocol
php-xmlseclibs.noarch : PHP library for XML Security
php54-php-xml.x86_64 : A module for PHP applications which use XML
php54-php-xmlrpc.x86_64 : A module for PHP applications which use the XML-RPC protocol
php55-php-xml.x86_64 : A module for PHP applications which use XML
php55-php-xmlrpc.x86_64 : A module for PHP applications which use the XML-RPC protocol
php56-php-xml.x86_64 : A module for PHP applications which use XML
php56-php-xmlrpc.x86_64 : A module for PHP applications which use the XML-RPC protocol
php70-php-xml.x86_64 : A module for PHP applications which use XML
php70-php-xmlrpc.x86_64 : A module for PHP applications which use the XML-RPC protocol
php71-php-xml.x86_64 : A module for PHP applications which use XML
php71-php-xmlrpc.x86_64 : A module for PHP applications which use the XML-RPC protocol
php72-php-xml.x86_64 : A module for PHP applications which use XML
php72-php-xmlrpc.x86_64 : A module for PHP applications which use the XML-RPC protocol
php73-php-xml.x86_64 : A module for PHP applications which use XML
php73-php-xmlrpc.x86_64 : A module for PHP applications which use the XML-RPC protocol
Then select the php-xml version matching your php version:
# php -v
PHP 7.2.11 (cli) (built: Oct 10 2018 10:00:29) ( NTS )
Copyright (c) 1997-2018 The PHP Group
Zend Engine v3.2.0, Copyright (c) 1998-2018 Zend Technologies
# sudo yum install -y php72-php-xml.x86_64
you have to be careful because reseved words are not only for table names, also you have to check column names, my mistake was that one of my columns was named "user". If you are using PostgreSQL the correct dialect is: org.hibernate.dialect.PostgreSQLDialect
cheers.
Simplest way is to cast the Object
to any
, like this:
const data = {"Ticket-1.pdf":"8e6e8255-a6e9-4626-9606-4cd255055f71.pdf","Ticket-2.pdf":"106c3613-d976-4331-ab0c-d581576e7ca1.pdf"};
const obj = <any>Object;
const values = obj.values(data).map(x => x.substr(0, x.length - 4));
const commaJoinedValues = values.join(',');
console.log(commaJoinedValues);
And voila – no compilation errors ;)
In the case of .NET Framework, in the test project there were formerly references to the following DLLs:
Microsoft.VisualStudio.TestPlatform.TestFramework
Microsoft.VisualStudio.TestPlatform.TestFramework.Extentions
I deleted them and added reference to:
Microsoft.VisualStudio.QualityTools.UnitTestFramework
And then all the tests appeared and started working in the same way as before.
I tried almost all of the other suggestions above before, but simply re-referencing the test DLLs worked alright. I posted this answer for those who are in my case.
Finally I fixed this. There was a typo in the server configuration and all paths to php extecutables were fine except the path to php-cli, which caused the error. When I fixed the path, everything worked fine.
I received this exception unrelated to any TLS issues. In my case the Content-Length header value did not match the body length.
So if want to set the value of an environment variable to something different for every build then we can pass these values during build time and we don't need to change our docker file every time.
While ENV
, once set cannot be overwritten through command line values. So, if we want to have our environment variable to have different values for different builds then we could use ARG
and set default values in our docker file. And when we want to overwrite these values then we can do so using --build-args
at every build without changing our docker file.
For more details, you can refer this.
I added @Component
annotation from import org.springframework.stereotype.Component
and the problem was solved.
The best solution would be to do these steps :
Run the project again, login into h2 and delete the table called "schema_version".
drop table schema_version;
Now make V2__create_shipwreck.sql file with ddl and rerun the project again.
Do remember this, add version 4.1.2 for flyway-core in pom.xml like
<dependency>
<groupId>org.flywaydb</groupId>
<artifactId>flyway-core</artifactId>
<version>4.1.2</version>
</dependency>
It should work now. Hope this will help.
The URI is encoded as UTF-8, but Tomcat is decoding them as ISO-8859-1. You need to edit the connector settings in the server.xml and add the URIEncoding="UTF-8" attribute.
or edit this parameter on your application.properties
server.tomcat.uri-encoding=utf-8
Laravel Server Requirements mention that BCMath
, Ctype
, JSON
, Mbstring
, OpenSSL
, PDO
, Tokenizer
, and XML
extensions are required. Most of the extensions are installed and enabled by default.
You can run the following command in Ubuntu to make sure the extensions are installed.
sudo apt install openssl php-common php-curl php-json php-mbstring php-mysql php-xml php-zip
PHP version specific installation (if PHP 7.4 installed)
sudo apt install php7.4-common php7.4-bcmath openssl php7.4-json php7.4-mbstring
You may need other PHP extensions for your composer packages. Find from links below.
PHP extensions for Ubuntu 20.04 LTS (Focal Fossa)
PHP extensions for Ubuntu 18.04 LTS (Bionic)
PHP extensions for Ubuntu 16.04 LTS (Xenial)
I suspect that the jar files of hibernate-core
and hibernate-entitymanager
dependencies are corrupted or were not installed properly on your machine.
I suggest that you just delete the folders named hibernate-core
and hibernate-entitymanager
from your Maven local repository and Maven will reinstall them.
The default location for Maven local repository is C:\Documents and Settings\[USERNAME]\.m2
in windows or ~/.m2
in Linux/Mac.
"Cannot invoke an expression whose type lacks a call signature."
In your code :
class Post extends Component {
public toggleBody: string;
constructor() {
this.toggleBody = this.setProp('showFullBody');
}
public showMore(): boolean {
return this.toggleBody(true);
}
public showLess(): boolean {
return this.toggleBody(false);
}
}
You have public toggleBody: string;
. You cannot call a string
as a function. Hence errors on : this.toggleBody(true);
and this.toggleBody(false);
All of the following examples use
var str = "Hello, playground"
Strings got a pretty big overhaul in Swift 4. When you get some substring from a String now, you get a Substring
type back rather than a String
. Why is this? Strings are value types in Swift. That means if you use one String to make a new one, then it has to be copied over. This is good for stability (no one else is going to change it without your knowledge) but bad for efficiency.
A Substring, on the other hand, is a reference back to the original String from which it came. Here is an image from the documentation illustrating that.
No copying is needed so it is much more efficient to use. However, imagine you got a ten character Substring from a million character String. Because the Substring is referencing the String, the system would have to hold on to the entire String for as long as the Substring is around. Thus, whenever you are done manipulating your Substring, convert it to a String.
let myString = String(mySubstring)
This will copy just the substring over and the memory holding old String can be reclaimed. Substrings (as a type) are meant to be short lived.
Another big improvement in Swift 4 is that Strings are Collections (again). That means that whatever you can do to a Collection, you can do to a String (use subscripts, iterate over the characters, filter, etc).
The following examples show how to get a substring in Swift.
You can get a substring from a string by using subscripts or a number of other methods (for example, prefix
, suffix
, split
). You still need to use String.Index
and not an Int
index for the range, though. (See my other answer if you need help with that.)
You can use a subscript (note the Swift 4 one-sided range):
let index = str.index(str.startIndex, offsetBy: 5)
let mySubstring = str[..<index] // Hello
or prefix
:
let index = str.index(str.startIndex, offsetBy: 5)
let mySubstring = str.prefix(upTo: index) // Hello
or even easier:
let mySubstring = str.prefix(5) // Hello
Using subscripts:
let index = str.index(str.endIndex, offsetBy: -10)
let mySubstring = str[index...] // playground
or suffix
:
let index = str.index(str.endIndex, offsetBy: -10)
let mySubstring = str.suffix(from: index) // playground
or even easier:
let mySubstring = str.suffix(10) // playground
Note that when using the suffix(from: index)
I had to count back from the end by using -10
. That is not necessary when just using suffix(x)
, which just takes the last x
characters of a String.
Again we simply use subscripts here.
let start = str.index(str.startIndex, offsetBy: 7)
let end = str.index(str.endIndex, offsetBy: -6)
let range = start..<end
let mySubstring = str[range] // play
Substring
to String
Don't forget, when you are ready to save your substring, you should convert it to a String
so that the old string's memory can be cleaned up.
let myString = String(mySubstring)
Int
index extension?I'm hesitant to use an Int
based index extension after reading the article Strings in Swift 3 by Airspeed Velocity and Ole Begemann. Although in Swift 4, Strings are collections, the Swift team purposely hasn't used Int
indexes. It is still String.Index
. This has to do with Swift Characters being composed of varying numbers of Unicode codepoints. The actual index has to be uniquely calculated for every string.
I have to say, I hope the Swift team finds a way to abstract away String.Index
in the future. But until them I am choosing to use their API. It helps me to remember that String manipulations are not just simple Int
index lookups.
Before installing the missing dependency, you need to check which version of PHP is installed on your system.
php -v
PHP 7.2.10-0ubuntu0.18.04.1 (cli) (built: Sep 13 2018 13:45:02) ( NTS )
Copyright (c) 1997-2018 The PHP Group
Zend Engine v3.2.0, Copyright (c) 1998-2018 Zend Technologies
with Zend OPcache v7.2.10-0ubuntu0.18.04.1, Copyright (c) 1999-2018, by Zend Technologies
In this case it's php7.2. apt search php7.2
returns all the available PHP extensions.
apt search php7.2
Sorting... Done
Full Text Search... Done
libapache2-mod-php7.2/bionic-updates,bionic-security 7.2.10-0ubuntu0.18.04.1 amd64
server-side, HTML-embedded scripting language (Apache 2 module)
libphp7.2-embed/bionic-updates,bionic-security 7.2.10-0ubuntu0.18.04.1 amd64
HTML-embedded scripting language (Embedded SAPI library)
php-all-dev/bionic,bionic 1:60ubuntu1 all
package depending on all supported PHP development packages
php7.2/bionic-updates,bionic-updates,bionic-security,bionic-security 7.2.10-0ubuntu0.18.04.1 all
server-side, HTML-embedded scripting language (metapackage)
php7.2-bcmath/bionic-updates,bionic-security 7.2.10-0ubuntu0.18.04.1 amd64
Bcmath module for PHP
php7.2-bz2/bionic-updates,bionic-security 7.2.10-0ubuntu0.18.04.1 amd64
bzip2 module for PHP
php7.2-cgi/bionic-updates,bionic-security 7.2.10-0ubuntu0.18.04.1 amd64
server-side, HTML-embedded scripting language (CGI binary)
php7.2-cli/bionic-updates,bionic-security,now 7.2.10-0ubuntu0.18.04.1 amd64 [installed,automatic]
command-line interpreter for the PHP scripting language
php7.2-common/bionic-updates,bionic-security,now 7.2.10-0ubuntu0.18.04.1 amd64 [installed,automatic]
documentation, examples and common module for PHP
php7.2-curl/bionic-updates,bionic-security,now 7.2.10-0ubuntu0.18.04.1 amd64 [installed]
CURL module for PHP
php7.2-dba/bionic-updates,bionic-security 7.2.10-0ubuntu0.18.04.1 amd64
DBA module for PHP
php7.2-dev/bionic-updates,bionic-security 7.2.10-0ubuntu0.18.04.1 amd64
Files for PHP7.2 module development
php7.2-enchant/bionic-updates,bionic-security 7.2.10-0ubuntu0.18.04.1 amd64
Enchant module for PHP
php7.2-fpm/bionic-updates,bionic-security,now 7.2.10-0ubuntu0.18.04.1 amd64 [installed]
server-side, HTML-embedded scripting language (FPM-CGI binary)
php7.2-gd/bionic-updates,bionic-security,now 7.2.10-0ubuntu0.18.04.1 amd64 [installed]
GD module for PHP
php7.2-gmp/bionic-updates,bionic-security 7.2.10-0ubuntu0.18.04.1 amd64
GMP module for PHP
php7.2-imap/bionic-updates,bionic-security 7.2.10-0ubuntu0.18.04.1 amd64
IMAP module for PHP
php7.2-interbase/bionic-updates,bionic-security 7.2.10-0ubuntu0.18.04.1 amd64
Interbase module for PHP
php7.2-intl/bionic-updates,bionic-security 7.2.10-0ubuntu0.18.04.1 amd64
Internationalisation module for PHP
php7.2-json/bionic-updates,bionic-security,now 7.2.10-0ubuntu0.18.04.1 amd64 [installed,automatic]
JSON module for PHP
php7.2-ldap/bionic-updates,bionic-security 7.2.10-0ubuntu0.18.04.1 amd64
LDAP module for PHP
php7.2-mbstring/bionic-updates,bionic-security,now 7.2.10-0ubuntu0.18.04.1 amd64 [installed,automatic]
MBSTRING module for PHP
php7.2-mysql/bionic-updates,bionic-security 7.2.10-0ubuntu0.18.04.1 amd64
MySQL module for PHP
php7.2-odbc/bionic-updates,bionic-security 7.2.10-0ubuntu0.18.04.1 amd64
ODBC module for PHP
php7.2-opcache/bionic-updates,bionic-security,now 7.2.10-0ubuntu0.18.04.1 amd64 [installed,automatic]
Zend OpCache module for PHP
php7.2-pgsql/bionic-updates,bionic-security 7.2.10-0ubuntu0.18.04.1 amd64
PostgreSQL module for PHP
php7.2-phpdbg/bionic-updates,bionic-security 7.2.10-0ubuntu0.18.04.1 amd64
server-side, HTML-embedded scripting language (PHPDBG binary)
php7.2-pspell/bionic-updates,bionic-security 7.2.10-0ubuntu0.18.04.1 amd64
pspell module for PHP
php7.2-readline/bionic-updates,bionic-security,now 7.2.10-0ubuntu0.18.04.1 amd64 [installed,automatic]
readline module for PHP
php7.2-recode/bionic-updates,bionic-security 7.2.10-0ubuntu0.18.04.1 amd64
recode module for PHP
php7.2-snmp/bionic-updates,bionic-security 7.2.10-0ubuntu0.18.04.1 amd64
SNMP module for PHP
php7.2-soap/bionic-updates,bionic-security 7.2.10-0ubuntu0.18.04.1 amd64
SOAP module for PHP
php7.2-sqlite3/bionic-updates,bionic-security,now 7.2.10-0ubuntu0.18.04.1 amd64 [installed]
SQLite3 module for PHP
php7.2-sybase/bionic-updates,bionic-security 7.2.10-0ubuntu0.18.04.1 amd64
Sybase module for PHP
php7.2-tidy/bionic-updates,bionic-security 7.2.10-0ubuntu0.18.04.1 amd64
tidy module for PHP
php7.2-xml/bionic-updates,bionic-security,now 7.2.10-0ubuntu0.18.04.1 amd64 [installed]
DOM, SimpleXML, WDDX, XML, and XSL module for PHP
php7.2-xmlrpc/bionic-updates,bionic-security 7.2.10-0ubuntu0.18.04.1 amd64
XMLRPC-EPI module for PHP
php7.2-xsl/bionic-updates,bionic-updates,bionic-security,bionic-security 7.2.10-0ubuntu0.18.04.1 all
XSL module for PHP (dummy)
php7.2-zip/bionic-updates,bionic-security 7.2.10-0ubuntu0.18.04.1 amd64
Zip module for PHP
You can now proceed to installing the missing dependency by running:
sudo apt install php7.2-gd
I am getting similar errors recently because recent JDKs (and browsers, and the Linux TLS stack, etc.) refuse to communicate with some servers in my customer's corporate network. The reason of this is that some servers in this network still have SHA-1 certificates.
Please see: https://www.entrust.com/understanding-sha-1-vulnerabilities-ssl-longer-secure/ https://blog.qualys.com/ssllabs/2014/09/09/sha1-deprecation-what-you-need-to-know
If this would be your current case (recent JDK vs deprecated certificate encription) then your best move is to update your network to the proper encription technology.
In case that you should provide a temporal solution for that, please see another answers to have an idea about how to make your JDK trust or distrust certain encription algorithms:
How to force java server to accept only tls 1.2 and reject tls 1.0 and tls 1.1 connections
Anyway I insist that, in case that I have guessed properly your problem, this is not a good solution to the problem and that your network admin should consider removing these deprecated certificates and get a new one.
This is what worked for me. Issue is earlier I didn't set Content Type(header) when I used exchange method.
MultiValueMap<String, String> map = new LinkedMultiValueMap<String, String>();
map.add("param1", "123");
map.add("param2", "456");
map.add("param3", "789");
map.add("param4", "123");
map.add("param5", "456");
HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.APPLICATION_FORM_URLENCODED);
final HttpEntity<MultiValueMap<String, String>> entity = new HttpEntity<MultiValueMap<String, String>>(map ,
headers);
JSONObject jsonObject = null;
try {
RestTemplate restTemplate = new RestTemplate();
ResponseEntity<String> responseEntity = restTemplate.exchange(
"https://url", HttpMethod.POST, entity,
String.class);
if (responseEntity.getStatusCode() == HttpStatus.CREATED) {
try {
jsonObject = new JSONObject(responseEntity.getBody());
} catch (JSONException e) {
throw new RuntimeException("JSONException occurred");
}
}
} catch (final HttpClientErrorException httpClientErrorException) {
throw new ExternalCallBadRequestException();
} catch (HttpServerErrorException httpServerErrorException) {
throw new ExternalCallServerErrorException(httpServerErrorException);
} catch (Exception exception) {
throw new ExternalCallServerErrorException(exception);
}
ExternalCallBadRequestException and ExternalCallServerErrorException are the custom exceptions here.
Note: Remember HttpClientErrorException is thrown when a 4xx error is received. So if the request you send is wrong either setting header or sending wrong data, you could receive this exception.
This works for me.
<select formControlName="preferredBankAccountId" class="form-control" value="">
<option value="">Please select</option>
<option *ngFor="let item of societyAccountDtos" [value]="item.societyAccountId" >{{item.nickName}}</option>
</select>
Not sure this is valid or not, correct me if it's wrong.
Correct me if this should not be like this.
Agree with all above answers of using MutableList but you can also add/remove from List and get a new list as below.
val newListWithElement = existingList + listOf(element)
val newListMinusElement = existingList - listOf(element)
Or
val newListWithElement = existingList.plus(element)
val newListMinusElement = existingList.minus(element)
Just remove this line from build.gradle(Project folder)
apply plugin: 'com.google.gms.google-services'
Now rebuild the application. works fine Happy coding
The issue is that you are not able to get a connection to MYSQL database and hence it is throwing an error saying that cannot build a session factory.
Please see the error below:
Caused by: java.sql.SQLException: Access denied for user ''@'localhost' (using password: NO)
which points to username
not getting populated
.
Please recheck system properties
dataSource.setUsername(System.getProperty("root"));
some packages seems to be missing as well pointing to a dependency issue:
package org.gjt.mm.mysql does not exist
Please run a mvn dependency:tree
command to check for dependencies
I did the test (but it is not your example) and the data does not return them orderly or complete
>>> ind = ['p5','p1','p8','p4','p2','p8']
>>> newind = {x.replace('p','') for x in ind}
>>> newind
{'1', '2', '8', '5', '4'}
I proved that this works:
>>> ind = ['p5','p1','p8','p4','p2','p8']
>>> newind = [x.replace('p','') for x in ind]
>>> newind
['5', '1', '8', '4', '2', '8']
or
>>> newind = []
>>> ind = ['p5','p1','p8','p4','p2','p8']
>>> for x in ind:
... newind.append(x.replace('p',''))
>>> newind
['5', '1', '8', '4', '2', '8']
Your DemoApplication
class is in the com.ag.digital.demo.boot
package and your LoginBean
class is in the com.ag.digital.demo.bean
package. By default components (classes annotated with @Component
) are found if they are in the same package or a sub-package of your main application class DemoApplication
. This means that LoginBean
isn't being found so dependency injection fails.
There are a couple of ways to solve your problem:
LoginBean
into com.ag.digital.demo.boot
or a sub-package.scanBasePackages
attribute of @SpringBootApplication
that should be on DemoApplication
.A few of other things that aren't causing a problem, but are not quite right with the code you've posted:
@Service
is a specialisation of @Component
so you don't need both on LoginBean
@RestController
is a specialisation of @Component
so you don't need both on DemoRestController
DemoRestController
is an unusual place for @EnableAutoConfiguration
. That annotation is typically found on your main application class (DemoApplication
) either directly or via @SpringBootApplication
which is a combination of @ComponentScan
, @Configuration
, and @EnableAutoConfiguration
.For Spark 1.5 or later, you can use the functions package:
from pyspark.sql.functions import *
newDf = df.withColumn('address', regexp_replace('address', 'lane', 'ln'))
Quick explanation:
withColumn
is called to add (or replace, if the name exists) a column to the data frame. regexp_replace
will generate a new column by replacing all substrings that match the pattern.Your error message is pretty explicit about what is going wrong:
laravel/framework v5.2.9 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
Do you have mbstring
installed on your server and is it enabled?
You can install mbstring
as part of the libapache2-mod-php5 package:
sudo apt-get install libapache2-mod-php5
Or standalone with:
sudo apt-get install php-mbstring
Installing it will also enable it, however you can also enable it by editing your php.ini
file and remove the ;
that is commenting it out if it is already installed.
If this is on your local machine, then follow the appropriate steps to install this on your environment.
In my case, I had to do the following while running with Junit5
@SpringBootTest(classes = {abc.class}) @ExtendWith(SpringExtension.class
Here abc.class was the class that was being tested
Use the str
accessor with square brackets:
df['col'] = df['col'].str[:9]
Or str.slice:
df['col'] = df['col'].str.slice(0, 9)
I ran across this error recently using a javascript library which changes the parameters of a function based on conditions.
You can test an object to see if it has the function. I would only do this in scenarios where you don't control what is getting passed to you.
if( param.indexOf != undefined ) {
// we have a string or other object that
// happens to have a function named indexOf
}
You can test this in your browser console:
> (3).indexOf == undefined;
true
> "".indexOf == undefined;
false
This happens when Maven tries to run your test cases while building the jar. You can simply skip running the test cases by adding -DskipTests
at the end of your maven command.
Ex: mvn clean install -DskipTests
or
mvn clean package -DskipTests
Cause: The error occurred since hibernate is not able to connect to the database.
Solution:
1. Please ensure that you have a database present at the server referred to in the configuration file eg. "hibernatedb" in this case.
2. Please see if the username and password for connecting to the db are correct.
3. Check if relevant jars required for the connection are mapped to the project.
Webpack does support multiple output paths.
Set the output paths as the entry key. And use the name
as output template.
webpack config:
entry: {
'module/a/index': 'module/a/index.js',
'module/b/index': 'module/b/index.js',
},
output: {
path: path.resolve(__dirname, 'dist'),
filename: '[name].js'
}
generated:
+-- module
+-- a
¦ +-- index.js
+-- b
+-- index.js
I did receive also the same error:
Error:Execution failed for task ':app:transformClassesWithDexForDebug'. com.android.build.api.transform.TransformException: java.lang.RuntimeException: com.android.ide.common.process.ProcessException: java.util.concurrent.ExecutionException: com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException: Process 'command 'C:\Program Files\Java\jdk1.8.0_60\bin\java.exe'' finished with non-zero exit value 1
well I fixed this with help of following steps:
Open your app's build.gradle (not the one in the project root) and add:
android {
//snippet
//add this into your existing 'android' block
dexOptions {
javaMaxHeapSize "4g"
}
//snip
}
Try your build again.
Note: 4g is 4 Gigabytes and this is a maximum heap size for dex operation.
You could get the result you want like this.
$file = "D:\Server\User\CUST\MEA\Data\In\Files\CORRECTED\CUST_MEAFile.csv"
$a = $file.Split("\")
$index = $a.count - 1
$a.GetValue($index)
If you use "Get-ChildItem" to get the "fullname", you could also use "name" to just get the name of the file.
In pyspark,SparkSql syntax:
where column_n like 'xyz%'
might not work.
Use:
where column_n RLIKE '^xyz'
This works perfectly fine.
I think that the object you received in your response payload isn't an array. Perhaps the array you want to iterate is contained into an attribute. You should check the structure of the received data...
You could try something like that:
getusers() {
this.http.get(`https://api.github.com/search/users?q=${this.input1.value}`)
.map(response => response.json().items) // <------
.subscribe(
data => this.users = data,
error => console.log(error)
);
}
Edit
Following the Github doc (developer.github.com/v3/search/#search-users), the format of the response is:
{
"total_count": 12,
"incomplete_results": false,
"items": [
{
"login": "mojombo",
"id": 1,
(...)
"type": "User",
"score": 105.47857
}
]
}
So the list of users is contained into the items
field and you should use this:
getusers() {
this.http.get(`https://api.github.com/search/users?q=${this.input1.value}`)
.map(response => response.json().items) // <------
.subscribe(
data => this.users = data,
error => console.log(error)
);
}
$Group
is an object, but you will actually need to check if $Group.samaccountname.StartsWith("string")
.
Change $Group.StartsWith("S_G_")
to $Group.samaccountname.StartsWith("S_G_")
.
This is probably due to its lack of connections to the Hive Meta Store,my hive Meta Store is stored in Mysql
,so I need to visit Mysql
,So I add a dependency in my build.sbt
libraryDependencies += "mysql" % "mysql-connector-java" % "5.1.38"
and the problem is solved!
For me, dataBinding { enabled true } was enabled in gradle, removing this helped me
Spring Boot will handle those repositories automatically as long as they are included in the same package (or a sub-package) of your @SpringBootApplication class. For more control over the registration process, you can use the @EnableMongoRepositories annotation. spring.io guides
@SpringBootApplication
@EnableMongoRepositories(basePackages = {"RepositoryPackage"})
public class Application {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
}
This is how I solved this issue:
One solution is to create a named class instead of using an anonymous class. Give that named class a constructor that takes whatever parameters you wish and assigns them to class fields:
class MenuActionListener implements ActionListener {
private Color kolorIkony;
public MenuActionListener(Color kolorIkony) {
this.kolorIkony = kolorIkony
}
@Override
public void actionPerformed(ActionEvent e) {
JMenuItem item = (JMenuItem) e.getSource();
IconA icon = (IconA) item.getIcon();
// Use the class field here
textArea.setForeground(kolorIkony);
}
});
Now you can create an instance of this class as usual:
Jmi.addActionListener(new MenuActionListener(getColor(colors[mi]));
Firstly, application.properties in the @PropertySource should read application-test.properties
if that's what the file is named (matching these things up matters):
@PropertySource("classpath:application-test.properties ")
That file should be under your /src/test/resources
classpath (at the root).
I don't understand why you'd specify a dependency hard coded to a file called application-test.properties
. Is that component only to be used in the test environment?
The normal thing to do is to have property files with the same name on different classpaths. You load one or the other depending on whether you are running your tests or not.
In a typically laid out application, you'd have:
src/test/resources/application.properties
and
src/main/resources/application.properties
And then inject it like this:
@PropertySource("classpath:application.properties")
The even better thing to do would be to expose that property file as a bean in your spring context and then inject that bean into any component that needs it. This way your code is not littered with references to application.properties and you can use anything you want as a source of properties. Here's an example: how to read properties file in spring project?
I managed to fix it finally. The problem is not related to HikariCP.
The problem persisted because of some complex methods in REST controllers executing multiple changes in DB through JPA repositories. For some reasons calls to these interfaces resulted in a growing number of "freezed" active connections, exhausting the pool. Either annotating these methods as @Transactional
or enveloping all the logic in a single call to transactional service method seem to solve the problem.
Yes just add the setters/getters with public modifier ;)
This is caused by non-matching Spring Boot dependencies. Check your classpath to find the offending resources. You have explicitly included version 1.1.8.RELEASE, but you have also included 3 other projects. Those likely contain different Spring Boot versions, leading to this error.
I set the PHPRC variable and uncommented zend_extension=php_opcache.dll
in php.ini
and all works well.
The important part is this:
Cannot find class [com.rakuten.points.persistence.manager.MemberPointSummaryDAOImpl] for bean with name 'MemberPointSummaryDAOImpl' defined in ServletContext resource [/WEB-INF/context/PersistenceManagerContext.xml];
due to:
nested exception is java.lang.ClassNotFoundException: com.rakuten.points.persistence.manager.MemberPointSummaryDAOImpl
According to this log, Spring could not find your MemberPointSummaryDAOImpl
class.
Firstable, make sure that you Antivirus software doesn't block SSL2.
Because I could not solve a problem for a long time and only disabling the antivirus helped me
I finally was able to figure out a simple solution without the @Query
annotation.
List<People> findDistinctByNameNotIn(List<String> names);
Of course, I got the people object instead of only Strings. I can then do the change in java.
In my case, adapter data changed. And i was wrongly use notifyItemInserted() for these changes. When i use notifyItemChanged, the error has gone away.
Place your springbootapplication class in root package for example if your service,controller is in springBoot.xyz package then your main class should be in springBoot package otherwise it will not scan below packages
Adding import 'core-js/es7/array';
to my polyfill.ts
fixed the issue for me.
Subtract -2
or -3
basis of removing last space also.
public static void main(String[] args) {
String s = "apple car 05";
System.out.println(s.substring(0, s.length() - 2));
}
Output
apple car
Your debug output indicates that Clean is the first thing that it's trying to run, so I'm guessing it's failing to download any plugins from central.
First off, see if you can download the plugin jar directly in a web browser: http://repo1.maven.org/maven2/org/apache/maven/plugins/maven-clean-plugin/2.5/maven-clean-plugin-2.5.jar
If that works then your web browser has connectivity to central but maven doesn't. That suggests to me that your web browser is using a proxy that maven isn't configured to use.
Maven proxy settings are described in depth here. To simplify that a little fill this out (replace the protocol/host/port with the values from your internet settings) and put it in the <settings>
tag of your maven settings.xml
file:
<proxies>
<proxy>
<id>proxy</id>
<active>true</active>
<protocol>http</protocol>
<host>proxy.example.com</host>
<port>8080</port>
</proxy>
</proxies>
If you are using intellij and want to use gradle you need to add this to the dependencies section of build.gradle file:
testImplementation("org.junit.jupiter:junit-jupiter-api:5.4.2")
testRuntimeOnly("org.junit.jupiter:junit-jupiter-engine:5.4.2")
simply create two list in adapter one orignal and one temp and implements Filterable.
@Override
public Filter getFilter() {
return new Filter() {
@Override
protected FilterResults performFiltering(CharSequence constraint) {
final FilterResults oReturn = new FilterResults();
final ArrayList<T> results = new ArrayList<>();
if (origList == null)
origList = new ArrayList<>(itemList);
if (constraint != null && constraint.length() > 0) {
if (origList != null && origList.size() > 0) {
for (final T cd : origList) {
if (cd.getAttributeToSearch().toLowerCase()
.contains(constraint.toString().toLowerCase()))
results.add(cd);
}
}
oReturn.values = results;
oReturn.count = results.size();//newly Aded by ZA
} else {
oReturn.values = origList;
oReturn.count = origList.size();//newly added by ZA
}
return oReturn;
}
@SuppressWarnings("unchecked")
@Override
protected void publishResults(final CharSequence constraint,
FilterResults results) {
itemList = new ArrayList<>((ArrayList<T>) results.values);
// FIXME: 8/16/2017 implement Comparable with sort below
///Collections.sort(itemList);
notifyDataSetChanged();
}
};
}
where
public GenericBaseAdapter(Context mContext, List<T> itemList) {
this.mContext = mContext;
this.itemList = itemList;
this.origList = itemList;
}
Go to Jenkins -> Manage Jenkins -> Configure System -> Global properties Check the box 'Environment variables' and add the JAVA_HOME path = "C:\Program Files\Java\jdk-10.0.1"
*Don't write bin at the end
It could happen after you update your php version, for instance if you upgrade from php5.6 to php7.1 you need to run these commands:
sudo apt-get install php7.1-mbstring
sudo service apache2 restart
If your destination version is different you need to check if the mbstring package exsit or not, an example for php7.0:
sudo apt-cache search php7.0-mbstring
I found it useful to first check existence of all modules that you working with, then performing an upgrade, in addition to that update phpmyadmin after upgrading your php is a good idea
See example here: Input and Output binary streams using JERSEY?
Pseudo code would be something like this (there are a few other similar options in above mentioned post):
@Path("file/")
@GET
@Produces({"application/pdf"})
public StreamingOutput getFileContent() throws Exception {
public void write(OutputStream output) throws IOException, WebApplicationException {
try {
//
// 1. Get Stream to file from first server
//
while(<read stream from first server>) {
output.write(<bytes read from first server>)
}
} catch (Exception e) {
throw new WebApplicationException(e);
} finally {
// close input stream
}
}
}
Well, you're getting a java.lang.NoClassDefFoundError
. In your pom.xml
, hibernate-core
version is 3.3.2.GA
and declared after hibernate-entitymanager
, so it prevails. You can remove that dependency, since will be inherited version 3.6.7.Final
from hibernate-entitymanager
.
You're using spring-boot
as parent, so no need to declare version of some dependencies, since they are managed by spring-boot
.
Also, hibernate-commons-annotations
is inherited from hibernate-entitymanager
and hibernate-annotations
is an old version of hibernate-commons-annotations
, you can remove both.
Finally, your pom.xml
can look like this:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.elsys.internetprogramming.trafficspy.server</groupId>
<artifactId>TrafficSpyService</artifactId>
<version>0.1.0</version>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.2.3.RELEASE</version>
</parent>
<dependencies>
<!-- Spring -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-cloud-connectors</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.eclipse.persistence</groupId>
<artifactId>javax.persistence</artifactId>
<version>2.0.0</version>
</dependency>
<!-- Hibernate -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-validator</artifactId>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
</dependency>
<dependency>
<groupId>commons-dbcp</groupId>
<artifactId>commons-dbcp</artifactId>
</dependency>
<dependency>
<groupId>commons-pool</groupId>
<artifactId>commons-pool</artifactId>
</dependency>
<!-- MySQL -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
</dependencies>
<properties>
<java.version>1.7</java.version>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>spring-releases</id>
<url>https://repo.spring.io/libs-release</url>
</repository>
<repository>
<id>codehaus</id>
<url>http://repository.codehaus.org/org/codehaus</url>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>spring-releases</id>
<url>https://repo.spring.io/libs-release</url>
</pluginRepository>
</pluginRepositories>
</project>
Let me know if you have a problem.
The error is here:
hasLetter("a",words[]);
You are passing the first item of words
, instead of the array.
Instead, pass the array to the function:
hasLetter("a",words);
Problem solved!
Here's a breakdown of what the problem was:
I'm guessing in your browser (chrome throws a different error), words[] == words[0]
, so when you call hasLetter("a",words[]);
, you are actually calling hasLetter("a",words[0]);
. So, in essence, you are passing the first item of words to your function, not the array as a whole.
Of course, because words
is just an empty array, words[0]
is undefined
. Therefore, your function call is actually:
hasLetter("a", undefined);
which means that, when you try to access d[ascii]
, you are actually trying to access undefined[0]
, hence the error.
I had the same issues with Repository not being found. So what I did was to move everything into 1 package. And this worked meaning that there was nothing wrong with my code. I moved the Repos & Entities into another package and added the following to SpringApplication class.
@EnableJpaRepositories("com...jpa")
@EntityScan("com...jpa")
After that, I moved the Service (interface & implementation) to another package and added the following to SpringApplication class.
@ComponentScan("com...service")
This solved my issues.
My opinion after making changes on your .env files restart your server and serve the app again. Just to be sure of the actual error. The php artisan clear and cache afterwards works pretty fine.
Today I also met this problem. Here is how I solved it:
xxx.9.png
. xxx9.png
and rebuilt. There were no errors, and the java files with the red wave under the name are gone too.Just pass the array to the Set constructor. The Set constructor accepts an iterable
parameter. The Array object implements the iterable
protocol, so its a valid parameter.
var arr = [55, 44, 65];_x000D_
var set = new Set(arr);_x000D_
console.log(set.size === arr.length);_x000D_
console.log(set.has(65));
_x000D_
This error is generic of the security libraries and might happen in other cases. In case other people have this same error when sending emails with javax.mail to a smtp server. Then the code to force other protocol is setting a property like this:
prop.put("mail.smtp.ssl.protocols", "TLSv1.2");
//And just in case probably you need to set these too
prop.put("mail.smtp.starttls.enable", true);
prop.put("mail.smtp.ssl.trust", {YOURSERVERNAME});
The below code will give you list of all the rows:-
df[df['C'] != 'XYZ']
To store the values from the above code into a dataframe :-
newdf = df[df['C'] != 'XYZ']
Faced similar issue. In my case the repository and the type being managed where not in same package.
It might be obvious, but make sure that you are sending to the parser URL object not a String containing www adress. This will not work:
ObjectMapper mapper = new ObjectMapper();
String www = "www.sample.pl";
Weather weather = mapper.readValue(www, Weather.class);
But this will:
ObjectMapper mapper = new ObjectMapper();
URL www = new URL("http://www.oracle.com/");
Weather weather = mapper.readValue(www, Weather.class);
In PS 7, you can use ConvertFrom-SecureString
and -AsPlainText
:
$UnsecurePassword = ConvertFrom-SecureString -SecureString $SecurePassword -AsPlainText
ConvertFrom-SecureString
[-SecureString] <SecureString>
[-AsPlainText]
[<CommonParameters>]
Bumped into same warning. If you specified goals and built project using "Run as -> Maven build..." option check and remove pom.xml from Profiles: just below Goals:
var url = "www.stackoverflow.com"
let str = path.suffix(3)
print(str) //low
Faced the same issue. Changed the JRE to the correct 1.8 version and do a maven clean and build resolve the issue. You may need to change the Project Facet and verify the correct path.
@p4bloch if you want to capture results from a series of capture parentheses, then you need to use the rangeAtIndex(index)
method of NSTextCheckingResult
, instead of range
. Here's @MartinR 's method for Swift2 from above, adapted for capture parentheses. In the array that is returned, the first result [0]
is the entire capture, and then individual capture groups begin from [1]
. I commented out the map
operation (so it's easier to see what I changed) and replaced it with nested loops.
func matches(for regex: String!, in text: String!) -> [String] {
do {
let regex = try NSRegularExpression(pattern: regex, options: [])
let nsString = text as NSString
let results = regex.matchesInString(text, options: [], range: NSMakeRange(0, nsString.length))
var match = [String]()
for result in results {
for i in 0..<result.numberOfRanges {
match.append(nsString.substringWithRange( result.rangeAtIndex(i) ))
}
}
return match
//return results.map { nsString.substringWithRange( $0.range )} //rangeAtIndex(0)
} catch let error as NSError {
print("invalid regex: \(error.localizedDescription)")
return []
}
}
An example use case might be, say you want to split a string of title year
eg "Finding Dory 2016" you could do this:
print ( matches(for: "^(.+)\\s(\\d{4})" , in: "Finding Dory 2016"))
// ["Finding Dory 2016", "Finding Dory", "2016"]
sparkContext.setLogLevel("OFF")
Your question is: are these not modules capable of declaring variables at global scope?
Answer: YES, they are "capable"
The only point is that references to global variables in ThisWorkbook or a Sheet module have to be fully qualified (i.e., referred to as ThisWorkbook.Global1
, e.g.)
References to global variables in a standard module have to be fully qualified only in case of ambiguity (e.g., if there is more than one standard module defining a variable with name Global1, and you mean to use it in a third module).
For instance, place in Sheet1 code
Public glob_sh1 As String
Sub test_sh1()
Debug.Print (glob_mod)
Debug.Print (ThisWorkbook.glob_this)
Debug.Print (Sheet1.glob_sh1)
End Sub
place in ThisWorkbook code
Public glob_this As String
Sub test_this()
Debug.Print (glob_mod)
Debug.Print (ThisWorkbook.glob_this)
Debug.Print (Sheet1.glob_sh1)
End Sub
and in a Standard Module code
Public glob_mod As String
Sub test_mod()
glob_mod = "glob_mod"
ThisWorkbook.glob_this = "glob_this"
Sheet1.glob_sh1 = "glob_sh1"
Debug.Print (glob_mod)
Debug.Print (ThisWorkbook.glob_this)
Debug.Print (Sheet1.glob_sh1)
End Sub
All three subs work fine.
PS1: This answer is based essentially on info from here. It is much worth reading (from the great Chip Pearson).
PS2: Your line Debug.Print ("Hello")
will give you the compile error Invalid outside procedure
.
PS3: You could (partly) check your code with Debug -> Compile VBAProject in the VB editor. All compile errors will pop.
PS4: Check also Put Excel-VBA code in module or sheet?.
PS5: You might be not able to declare a global variable in, say, Sheet1, and use it in code from other workbook (reading http://msdn.microsoft.com/en-us/library/office/gg264241%28v=office.15%29.aspx#sectionSection0; I did not test this point, so this issue is yet to be confirmed as such). But you do not mean to do that in your example, anyway.
PS6: There are several cases that lead to ambiguity in case of not fully qualifying global variables. You may tinker a little to find them. They are compile errors.
I was facing the same problem in IntelliJ. It was working from command line though.
I found the issue was because of an improper Gradle config in the IDE. I wasn't using the "default Gradle wrapper" as recommended:
On Java 9 or later, Map.entry
can be used, so long as you know that neither the key nor value will be null. If either value could legitimately be null, AbstractMap.SimpleEntry
(as suggested in another answer) or AbstractMap.SimpleImmutableEntry
would be the way to go.
private Map<String, AttributeType> mapConfig(Map<String, String> input, String prefix) {
int subLength = prefix.length();
return input.entrySet().stream().map(e ->
Map.entry(e.getKey().substring(subLength), AttributeType.GetByName(e.getValue())));
}).collect(Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue));
}
This is probably what you were looking for:
Ionic caches your views and thus your controllers by default (max of 10) http://ionicframework.com/docs/api/directive/ionView/
There are events you can hook onto to let your controller do certain things based on those ionic events. see here for an example: http://ionicframework.com/blog/navigating-the-changes/
Swift 3 Extension Variant that preserves existing attributes.
extension UILabel {
func setLineHeight(lineHeight: CGFloat) {
guard self.text != nil && self.attributedText != nil else { return }
var attributedString = NSMutableAttributedString()
if let attributedText = self.attributedText {
attributedString = NSMutableAttributedString(attributedString: attributedText)
} else if let text = self.text {
attributedString = NSMutableAttributedString(string: text)
}
let style = NSMutableParagraphStyle()
style.lineSpacing = lineHeight
style.alignment = self.textAlignment
let str = NSString(string: attributedString.string)
attributedString.addAttribute(NSParagraphStyleAttributeName,
value: style,
range: str.range(of: str as String))
self.attributedText = attributedString
}
}
easy way to do it: To get the actual user count:
$ADInfo = Get-ADGroup -Identity '<groupname>' -Properties Members
$AdInfo.Members.Count
and you get the count easily, it is pretty fast as well for 20k+ users too
The Multipart File Upload worked after following code modification to Upload using RestTemplate
LinkedMultiValueMap<String, Object> map = new LinkedMultiValueMap<>();
map.add("file", new ClassPathResource(file));
HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.MULTIPART_FORM_DATA);
HttpEntity<LinkedMultiValueMap<String, Object>> requestEntity = new HttpEntity<LinkedMultiValueMap<String, Object>>(
map, headers);
ResponseEntity<String> result = template.get().exchange(
contextPath.get() + path, HttpMethod.POST, requestEntity,
String.class);
And adding MultipartFilter to web.xml
<filter>
<filter-name>multipartFilter</filter-name>
<filter-class>org.springframework.web.multipart.support.MultipartFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>multipartFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
You need the following functions to do this in PHP:
strpos
Find the position of the first occurrence of a substring in a string
strrpos
Find the position of the last occurrence of a substring in a string
substr
Return part of a string
Here's the signature of the substr
function:
string substr ( string $string , int $start [, int $length ] )
The signature of the substring
function (Java) looks a bit different:
string substring( int beginIndex, int endIndex )
substring
(Java) expects the end-index as the last parameter, but substr
(PHP) expects a length.
It's not hard, to get the desired length by the end-index in PHP:
$sub = substr($str, $start, $end - $start);
Here is the working code
$start = strpos($message, '-') + 1;
if ($req_type === 'RMT') {
$pt_password = substr($message, $start);
}
else {
$end = strrpos($message, '-');
$pt_password = substr($message, $start, $end - $start);
}
Therefore, I would like to separate the string by the furthest delimiter.
I know this is an old question, but this is a simple requirement for which SUBSTR and INSTR would suffice. REGEXP are still slower and CPU intensive operations than the old subtsr and instr functions.
SQL> WITH DATA AS
2 ( SELECT 'F/P/O' str FROM dual
3 )
4 SELECT SUBSTR(str, 1, Instr(str, '/', -1, 1) -1) part1,
5 SUBSTR(str, Instr(str, '/', -1, 1) +1) part2
6 FROM DATA
7 /
PART1 PART2
----- -----
F/P O
As you said you want the furthest delimiter, it would mean the first delimiter from the reverse.
You approach was fine, but you were missing the start_position in INSTR. If the start_position is negative, the INSTR
function counts back start_position number of characters from the end of string and then searches towards the beginning of string.
You can use str.contains
alone with a regex pattern using OR (|)
:
s[s.str.contains('og|at')]
Or you could add the series to a dataframe
then use str.contains
:
df = pd.DataFrame(s)
df[s.str.contains('og|at')]
Output:
0 cat
1 hat
2 dog
3 fog
When your development target is not supporting any UIControl
In my case i was using StackView
in a project with development target 8.0
.
This error can happen if your development target is not supporting any UIControl.
When you set incorrect target
In below line if you leave default target "target" instead of self then Segmentation fault 11 occurs.
shareBtn.addTarget(self, action: #selector(ViewController.share(_:)), for: .touchUpInside)
I had the same issue and it was caused by being unable to connect to the database instance. Look for hibernate error HHH000342 in the log above that error, it should give you an idea to where the db connection is failing (incorrect username/pass, url, etc.)
I have written a complete article at Spring Boot JPA Multiple Data Sources Example. In this article, we will learn how to configure multiple data sources and connect to multiple databases in a typical Spring Boot web application. We will use Spring Boot 2.0.5, JPA, Hibernate 5, Thymeleaf and H2 database to build a simple Spring Boot multiple data sources web application.
Look at the exception:
No qualifying bean of type [edu.java.spring.ws.dao.UserDao] found for dependency
This means that there's no bean available to fulfill that dependency. Yes, you have an implementation of the interface, but you haven't created a bean for that implementation. You have two options:
UserDaoImpl
with @Component
or @Repository
, and let the component scan do the work for you, exactly as you have done with UserService
.UserBoImpl
.Remember that if you create the bean explicitly you need to put the definition before the component scan. In this case the order is important.
Elasticsearch settings are in $ES_HOME/config/elasticsearch.yml
. There, if the cluster.name
setting is commented out, it means ES would take just about any cluster name. So, in your code, the cluster.name
as "elastictest"
might be the problem. Try this:
Client client = new TransportClient()
.addTransportAddress(new InetSocketTransportAddress(
"143.79.236.xxx",
9300));
I ran into this problem in the same situation, and I wrote up a detailed answer to a related question on stack overflow explaining how to more easily modify the system's cacerts using a GUI tool. I think it's a little bit better than using a one-off keystore for a specific project or modifying the settings for maven (which may cause trouble down the road).
#include <vector>
#include <numeric>
#include <sstream>
#include <iterator>
void Trim(std::string& inputString)
{
std::istringstream stringStream(inputString);
std::vector<std::string> tokens((std::istream_iterator<std::string>(stringStream)), std::istream_iterator<std::string>());
inputString = std::accumulate(std::next(tokens.begin()), tokens.end(),
tokens[0], // start with first element
[](std::string a, std::string b) { return a + " " + b; });
}
On a Mac, you need to use this command:
STATIC_DEPS=true sudo pip install lxml
The Thing that worked for me:
python manage.py makemigrations <appname>
python manage.py migrate <yourappname> --fake
python manage.py makemigrations <appname>
.python manage.py migrate <appname>
follow these steps. 1:- create your configuration class like below you can see
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.beans.factory.annotation.Value;
@Configuration
public class YourConfiguration{
// passing the key which you set in application.properties
@Value("${some.pro}")
private String somePro;
// getting the value from that key which you set in application.properties
@Bean
public String getsomePro() {
return somePro;
}
}
2:- when you have a configuration class then inject in the variable from a configuration where you need.
@Component
public class YourService {
@Autowired
private String getsomePro;
// now you have a value in getsomePro variable automatically.
}
I had the same error when tried to run my tests in a JSF project.
I´m using Eclipse IDE (kepler). So, I did "project > clean" and then ran the tests again of the same project.
It worked!
this is how I do it
JAVASCRIPT:
var module = angular.module('yourModuleName', ['ui.router']);
module.run( ['$rootScope', '$state', '$stateParams',
function ($rootScope, $state, $stateParams) {
$rootScope.$state = $state;
$rootScope.$stateParams = $stateParams;
}
]);
HTML:
<pre id="uiRouterInfo">
$state = {{$state.current.name}}
$stateParams = {{$stateParams}}
$state full url = {{ $state.$current.url.source }}
</pre>
EXAMPLE
For a completely stateless utility class in Java, I suggest the class be declared public
and final
, and have a private constructor to prevent instantiation. The final
keyword prevents sub-classing and can improve efficiency at runtime.
The class should contain all static
methods and should not be declared abstract
(as that would imply the class is not concrete and has to be implemented in some way).
The class should be given a name that corresponds to its set of provided utilities (or "Util" if the class is to provide a wide range of uncategorized utilities).
The class should not contain a nested class unless the nested class is to be a utility class as well (though this practice is potentially complex and hurts readability).
Methods in the class should have appropriate names.
Methods only used by the class itself should be private.
The class should not have any non-final/non-static class fields.
The class can also be statically imported by other classes to improve code readability (this depends on the complexity of the project however).
Example:
public final class ExampleUtilities {
// Example Utility method
public static int foo(int i, int j) {
int val;
//Do stuff
return val;
}
// Example Utility method overloaded
public static float foo(float i, float j) {
float val;
//Do stuff
return val;
}
// Example Utility method calling private method
public static long bar(int p) {
return hid(p) * hid(p);
}
// Example private method
private static long hid(int i) {
return i * 2 + 1;
}
}
Perhaps most importantly of all, the documentation for each method should be precise and descriptive. Chances are methods from this class will be used very often and its good to have high quality documentation to complement the code.
Swift 2.1 Update:
let text = "We tried to make this app as most intuitive as possible for you. If you have any questions don't hesitate to ask us. For a detailed manual just click here."
let linkTextWithColor = "click here"
let range = (text as NSString).rangeOfString(linkTextWithColor)
let attributedString = NSMutableAttributedString(string:text)
attributedString.addAttribute(NSForegroundColorAttributeName, value: UIColor.redColor() , range: range)
self.helpText.attributedText = attributedString
self.helpText
is a UILabel
outlet.
Abstraction : Abstraction is process in which you collect or gather relevant data and remove non-relevant data. (And if you have achieved abstraction, then encapsulation also achieved.)
Encapsulation: Encapsulation is a process in which you wrap of functions and members in a single unit. Means You are hiding the implementation detail. Means user can access by making object of class, he/she can't see detail.
Example:
public class Test
{
int t;
string s;
public void show()
{
s = "Testing";
Console.WriteLine(s);
Console.WriteLine(See()); // No error
}
int See()
{
t = 10;
return t;
}
public static void Main()
{
Test obj = new Test();
obj.Show(); // there is no error
obj.See(); // Error:- Inaccessible due to its protection level
}
}
In the above example, User can access only Show() method by using obj, that is Abstraction.
And See() method is calling internally in Show() method that is encapsulation, because user doesn't know what things are going on in Show() method.
php\php.ini
set your loadable php extensions path (eg. extension_dir = "C:\php\ext"
)
(https://drive.google.com/open?id=1DDZd06SLHSmoFrdmWkmZuXt4DMOPIi_A)php\php.ini
) check if extension=php_mysqli.dll
is uncommented
(https://drive.google.com/open?id=17DUt1oECwOdol8K5GaW3tdPWlVRSYfQ9)"C:\php"
) and php\ext folder (eg."C:\php\ext"
) as your runtime environment variable path
(https://drive.google.com/open?id=1zCRRjh1Jem_LymGsgMmYxFc8Z9dUamKK)Ok - for me the source of the problem was in serialisation/deserialisation. The object that was being sent and received was as follows where the code is submitted and the code and maskedPhoneNumber is returned.
@ApiObject(description = "What the object is for.")
@JsonIgnoreProperties(ignoreUnknown = true)
public class CodeVerification {
@ApiObjectField(description = "The code which is to be verified.")
@NotBlank(message = "mandatory")
private final String code;
@ApiObjectField(description = "The masked mobile phone number to which the code was verfied against.")
private final String maskedMobileNumber;
public codeVerification(@JsonProperty("code") String code, String maskedMobileNumber) {
this.code = code;
this.maskedMobileNumber = maskedMobileNumber;
}
public String getcode() {
return code;
}
public String getMaskedMobileNumber() {
return maskedMobileNumber;
}
}
The problem was that I didn't have a JsonProperty defined for the maskedMobileNumber in the constructor. i.e. Constructor should have been
public codeVerification(@JsonProperty("code") String code, @JsonProperty("maskedMobileNumber") String maskedMobileNumber) {
this.code = code;
this.maskedMobileNumber = maskedMobileNumber;
}
Have you tried @Lazy
loading the datasource? Because you're initialising your embedded Tomcat container within the Spring context, you have to delay the initialisation of your DataSource
(until the JNDI vars have been setup).
N.B. I haven't had a chance to test this code yet!
@Lazy
@Bean(destroyMethod="")
public DataSource jndiDataSource() throws IllegalArgumentException, NamingException {
JndiObjectFactoryBean bean = new JndiObjectFactoryBean();
bean.setJndiName("java:comp/env/jdbc/myDataSource");
bean.setProxyInterface(DataSource.class);
//bean.setLookupOnStartup(false);
bean.afterPropertiesSet();
return (DataSource)bean.getObject();
}
You may also need to add the @Lazy
annotation wherever the DataSource is being used. e.g.
@Lazy
@Autowired
private DataSource dataSource;
Below solution tested and its working, hope it will support in your project.
HTML code:
<input type="file" name="asgnmnt_file" id="asgnmnt_file" class="span8"
style="display:none;" onchange="fileSelected(this)">
<br><br>
<img id="asgnmnt_file_img" src="uploads/assignments/abc.jpg" width="150" height="150"
onclick="passFileUrl()" style="cursor:pointer;">
JavaScript code:
function passFileUrl(){
document.getElementById('asgnmnt_file').click();
}
function fileSelected(inputData){
document.getElementById('asgnmnt_file_img').src = window.URL.createObjectURL(inputData.files[0])
}
One of the reasons for this error is when repositoryId is not specified or specified incorrectly. As mentioned already it should be the same as in section in settings.xml. Couple of hints... Run mvn with -e -X options and check the debug output. It will tell you which repositoryId it is using:
[DEBUG] (f) offline = false
[DEBUG] (f) packaging = exe
[DEBUG] (f) pomFile = c:\temp\build-test\pom.xml
[DEBUG] (f) project = MavenProject: org.apache.maven:standalone-pom:1 @
[DEBUG] (f) repositoryId = remote-repository
[DEBUG] (f) repositoryLayout = default
[DEBUG] (f) retryFailedDeploymentCount = 1
[DEBUG] (f) uniqueVersion = true
[DEBUG] (f) updateReleaseInfo = false
[DEBUG] (f) url = https://nexus.url.blah.com/...
[DEBUG] (f) version = 13.1
[DEBUG] -- end configuration --
In this case it uses the default value "remote-repository", which means that something went wrong.
Apparently I have specified -DrepositoryID (note ID in capital) instead of -DrepositoryId.
I faced the same error and realized that pom.xml had java 1.7 and STS compiler pointed to Java 1.8. Upon changing compiler to 1.7 and rebuild fixed the issue.
PS: This answer is not related to actual question posted but applies to similar error for app Context not loading
Since you return to the client just String
and its content type == 'text/plain'
, there is no any chance for default converters to determine how to convert String
response to the FFSampleResponseHttp
object.
The simple way to fix it:
expected-response-type
from <int-http:outbound-gateway>
replyChannel1
<json-to-object-transformer>
Otherwise you should write your own HttpMessageConverter
to convert the String to the appropriate object.
To make it work with MappingJackson2HttpMessageConverter
(one of default converters) and your expected-response-type
, you should send your reply with content type = 'application/json'
.
If there is a need, just add <header-enricher>
after your <service-activator>
and before sending a reply to the <int-http:inbound-gateway>
.
So, it's up to you which solution to select, but your current state doesn't work, because of inconsistency with default configuration.
UPDATE
OK. Since you changed your server to return FfSampleResponseHttp
object as HTTP response, not String, just add contentType = 'application/json'
header before sending the response for the HTTP and MappingJackson2HttpMessageConverter
will do the stuff for you - your object will be converted to JSON and with correct contentType
header.
From client side you should come back to the expected-response-type="com.mycompany.MyChannel.model.FFSampleResponseHttp"
and MappingJackson2HttpMessageConverter
should do the stuff for you again.
Of course you should remove <json-to-object-transformer>
from you message flow after <int-http:outbound-gateway>
.
Retaining all questions ids with small tweak
Map<Integer, Boolean> answerMap =
answerList.stream()
.collect(Collectors.toMap(Answer::getId, a ->
Boolean.TRUE.equals(a.getAnswer())));
Hat tip to Adam Bien if you don't want to use createQuery
with a String
and want type safety:
@PersistenceContext EntityManager em; public List<ConfigurationEntry> allEntries() { CriteriaBuilder cb = em.getCriteriaBuilder(); CriteriaQuery<ConfigurationEntry> cq = cb.createQuery(ConfigurationEntry.class); Root<ConfigurationEntry> rootEntry = cq.from(ConfigurationEntry.class); CriteriaQuery<ConfigurationEntry> all = cq.select(rootEntry); TypedQuery<ConfigurationEntry> allQuery = em.createQuery(all); return allQuery.getResultList(); }
http://www.adam-bien.com/roller/abien/entry/selecting_all_jpa_entities_as
Had this issue when migrated spring boot 1.5.2 to 2.0.4.
Instead of creating bean I've used @EnableAutoConfiguration
in the main class and it solved my problem.
Create Spliterator
from Iterator
using Spliterators
class contains more than one function for creating spliterator, for example here am using spliteratorUnknownSize
which is getting iterator as parameter, then create Stream using StreamSupport
Spliterator<Model> spliterator = Spliterators.spliteratorUnknownSize(
iterator, Spliterator.NONNULL);
Stream<Model> stream = StreamSupport.stream(spliterator, false);
That only means that an undefined column or parameter name was detected. The errror that DB2 gives should point what that may be:
DB2 SQL Error: SQLCODE=-206, SQLSTATE=42703, SQLERRMC=[THE_UNDEFINED_COLUMN_OR_PARAMETER_NAME], DRIVER=4.8.87
Double check your table definition. Maybe you just missed adding something.
I also tried google-ing this problem and saw this:
http://www.coderanch.com/t/515475/JDBC/databases/sql-insert-statement-giving-sqlcode
From the stack trace it's clear that, the ThreadPoolExecutor > Worker thread started and it's waiting for the task to be available on the BlockingQueue(DelayedWorkQueue) to pick the task and execute.So this thread will be in WAIT status only as long as get a SIGNAL from the publisher thread.
Swift 3: When you want to remove trailing string:
func replaceSuffix(_ suffix: String, replacement: String) -> String {
if hasSuffix(suffix) {
let sufsize = suffix.count < count ? -suffix.count : 0
let toIndex = index(endIndex, offsetBy: sufsize)
return substring(to: toIndex) + replacement
}
else
{
return self
}
}
If you want to use embedded H2 database from Spring Boot starter add the below dependency to your pom file.
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<version>1.3.156</version>
</dependency>
But as mentioned in comments, the embedded H2 database keeps data in memory and doesn't stores it permanently.
Here is how to use UIVibrancyEffect and UIBlurEffect with UIVisualEffectView
Objective-C:
// Blur effect
UIBlurEffect *blurEffect = [UIBlurEffect effectWithStyle:UIBlurEffectStyleDark];
UIVisualEffectView *blurEffectView = [[UIVisualEffectView alloc] initWithEffect:blurEffect];
[blurEffectView setFrame:self.view.bounds];
[self.view addSubview:blurEffectView];
// Vibrancy effect
UIVibrancyEffect *vibrancyEffect = [UIVibrancyEffect effectForBlurEffect:blurEffect];
UIVisualEffectView *vibrancyEffectView = [[UIVisualEffectView alloc] initWithEffect:vibrancyEffect];
[vibrancyEffectView setFrame:self.view.bounds];
// Label for vibrant text
UILabel *vibrantLabel = [[UILabel alloc] init];
[vibrantLabel setText:@"Vibrant"];
[vibrantLabel setFont:[UIFont systemFontOfSize:72.0f]];
[vibrantLabel sizeToFit];
[vibrantLabel setCenter: self.view.center];
// Add label to the vibrancy view
[[vibrancyEffectView contentView] addSubview:vibrantLabel];
// Add the vibrancy view to the blur view
[[blurEffectView contentView] addSubview:vibrancyEffectView];
Swift 4:
// Blur Effect
let blurEffect = UIBlurEffect(style: UIBlurEffectStyle.dark)
let blurEffectView = UIVisualEffectView(effect: blurEffect)
blurEffectView.frame = view.bounds
view.addSubview(blurEffectView)
// Vibrancy Effect
let vibrancyEffect = UIVibrancyEffect(blurEffect: blurEffect)
let vibrancyEffectView = UIVisualEffectView(effect: vibrancyEffect)
vibrancyEffectView.frame = view.bounds
// Label for vibrant text
let vibrantLabel = UILabel()
vibrantLabel.text = "Vibrant"
vibrantLabel.font = UIFont.systemFont(ofSize: 72.0)
vibrantLabel.sizeToFit()
vibrantLabel.center = view.center
// Add label to the vibrancy view
vibrancyEffectView.contentView.addSubview(vibrantLabel)
// Add the vibrancy view to the blur view
blurEffectView.contentView.addSubview(vibrancyEffectView)
The short answer is that this is really hard in Swift right now. My hunch is that there is still a bunch of work for Apple to do on convenience methods for things like this.
String.substringWithRange()
is expecting a Range<String.Index>
parameter, and as far as I can tell there isn't a generator method for the String.Index
type. You can get String.Index
values back from aString.startIndex
and aString.endIndex
and call .succ()
or .pred()
on them, but that's madness.
How about an extension on the String class that takes good old Int
s?
extension String {
subscript (r: Range<Int>) -> String {
get {
let subStart = advance(self.startIndex, r.startIndex, self.endIndex)
let subEnd = advance(subStart, r.endIndex - r.startIndex, self.endIndex)
return self.substringWithRange(Range(start: subStart, end: subEnd))
}
}
func substring(from: Int) -> String {
let end = countElements(self)
return self[from..<end]
}
func substring(from: Int, length: Int) -> String {
let end = from + length
return self[from..<end]
}
}
let mobyDick = "Call me Ishmael."
println(mobyDick[8...14]) // Ishmael
let dogString = "This 's name is Patch."
println(dogString[5..<6]) //
println(dogString[5...5]) //
println(dogString.substring(5)) // 's name is Patch.
println(dogString.substring(5, length: 1)) //
Update: Swift beta 4 resolves the issues below!
As it stands [in beta 3 and earlier], even Swift-native strings have some issues with handling Unicode characters. The dog icon above worked, but the following doesn't:
let harderString = "1:1??"
for character in harderString {
println(character)
}
Output:
1
:
1
?
?
If you want to check that one String contains another Sub-String within it or not you can check it like this too,
var name = String()
name = "John has two apples."
Now, in this particular string if you want to know if it contains fruit name 'apple' or not you can do,
if name.contains("apple")
{
print("Yes , it contains fruit name")
}
else
{
print(it does not contain any fruit name)
}
Hope this works for you.
Go for whatever is most readable and easily maintainable. Just because you can write it out in a single line doesn't mean that you should. Your existing solution is close to what I would use other than I would user iteritems to skip the value lookup, and I hate nested ifs if I can avoid them:
for key, val in d.iteritems():
if filter_string not in key:
continue
# do something
However if you realllly want something to let you iterate through a filtered dict then I would not do the two step process of building the filtered dict and then iterating through it, but instead use a generator, because what is more pythonic (and awesome) than a generator?
First we create our generator, and good design dictates that we make it abstract enough to be reusable:
# The implementation of my generator may look vaguely familiar, no?
def filter_dict(d, filter_string):
for key, val in d.iteritems():
if filter_string not in key:
continue
yield key, val
And then we can use the generator to solve your problem nice and cleanly with simple, understandable code:
for key, val in filter_dict(d, some_string):
# do something
In short: generators are awesome.
Add the following to your conf file
fastcgi_buffers 16 16k;
fastcgi_buffer_size 32k;
If you use C++11, you can use the specifier "override", and it will give you a compiler error if your aren't correctly overriding an abstract method. You probably have a method that doesn't match exactly with an abstract method in the base class, so your aren't actually overriding it.
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'MyController'
Make sure that you have added ojdbc14.jar
into your library.
For oracle 11g, usie ojdbc6.jar
.
In my case, with letsencrypt https, this was caused by using cert.pem
instead of fullchain.pem
as the certificate file on the requested server. See this thread for details.
Works great, minimal setup and no third parties.
According to Chrome's documentation:
Here's the updated workflow:What happens when you blackbox a script?
Exceptions thrown from library code will not pause (if Pause on exceptions is enabled), Stepping into/out/over bypasses the library code, Event listener breakpoints don't break in library code, The debugger will not pause on any breakpoints set in library code. The end result is you are debugging your application code instead of third party resources.
jquery\..*\.js
(glob pattern/human translation: jquery.*.js
)|
, like so: jquery\..*\.js|include\.postload\.js
(which acts like an "or this pattern", so to speak. Or keep adding them with the "Add" button.Bonus tip! I use Regex101 regularly (but there are many others: ) to quickly test my rusty regex patterns and find out where I'm wrong with the step-by-step regex debugger. If you are not yet "fluent" in Regular Expressions I recommend you start using sites that help you write and visualize them such as http://buildregex.com/ and https://www.debuggex.com/
You can also use the context menu when working in the Sources panel. When viewing a file, you can right-click in the editor and choose Blackbox Script. This will add the file to the list in the Settings panel:
It's an excellent tool to have:
Visual Event is an open-source Javascript bookmarklet which provides debugging information about events that have been attached to DOM elements. Visual Event shows:
- Which elements have events attached to them
- The type of events attached to an element
- The code that will be run with the event is triggered
- The source file and line number for where the attached function was defined (Webkit browsers and Opera only)
You can pause the code when you click somewhere in the page, or when the DOM is modified... and other kinds of JS breakpoints that will be useful to know. You should apply blackboxing here to avoid a nightmare.
In this instance, I want to know what exactly goes on when I click the button.
Open Dev Tools -> Sources tab, and on the right find Event
Listener Breakpoints
:
Expand Mouse
and select click
With Dev Tools activated, you can search the whole codebase (all code in all files) with ?+?+F or:
and searching #envio
or whatever the tag/class/id you think starts the party and you may get somewhere faster than anticipated.
Be aware sometimes there's not only an img
but lots of elements stacked, and you may not know which one triggers the code.
If this is a bit out of your knowledge, take a look at Chrome's tutorial on debugging.
You are missing spring-security-web-3.1.X.RELEASE.jar
from your classpath
If you're trying to take advantage of polymorphic behavior, you need to ensure that the methods visible to outside classes (that need polymorphism) have the same signature. That means they need to have the same name, number and order of parameters, as well as the parameter types.
In your case, you might do better to have a generic draw()
method, and rely on the subclasses (Rectangle
, Ellipse
) to implement the draw()
method as what you had been thinking of as "drawEllipse" and "drawRectangle".
With JUnit5 and @DataJpaTest
test will look like (kotlin code):
@DataJpaTest
@ExtendWith(value = [SpringExtension::class])
class ActivityJpaTest {
@Autowired
lateinit var entityManager: TestEntityManager
@Autowired
lateinit var myEntityRepository: MyEntityRepository
@Test
fun shouldSaveEntity() {
// when
val savedEntity = myEntityRepository.save(MyEntity(1, "test")
// then
Assertions.assertNotNull(entityManager.find(MyEntity::class.java, savedEntity.id))
}
}
You could use TestEntityManager
from org.springframework.boot.test.autoconfigure.orm.jpa.TestEntityManager
package in order to validate entity state.
For me it didn't work , it was related to a path problem happened after android studio 2.0 preview 1, I needed to update genymotion and virtual box, and apparently they tried to use same port for adb.
Solution is explained here link! Basically you just need to:
1) open genymotion settings
2) specify sdk path for the adb manually
3) adb kill-server
4) adb start-server
SELECT id FROM TAG_TABLE WHERE 'aaaaaaaa' LIKE '%' || "tag_name" || '%';
tag_name
should be in quotation otherwise it will give error as tag_name doest not exist
I found the error: I have a library that it was built using jdk 1.6. The Spring main controller and components are in this library. And how I use jdk 1.7, It does not find the classes built in 1.6.
The solution was built all using "compiler compliance level: 1.7" and "Generated .class files compatibility: 1.6", "Source compatibility: 1.6".
I setup this option in Eclipse: Preferences\Java\Compiler.
Thanks everybody.
You call writer.close();
in writeToFile
so the writer has been closed the second time you call writeToFile
.
Why don't you merge FileStatus
into writeToFile
?
First of all I'd like to say that all users who said about lazy and transactions were right. But in my case there was a slight difference in that I used result of @Transactional method in a test and that was outside real transaction so I got this lazy exception.
My service method:
@Transactional
User get(String uid) {};
My test code:
User user = userService.get("123");
user.getActors(); //org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role
My solution to this was wrapping that code in another transaction like this:
List<Actor> actors = new ArrayList<>();
transactionTemplate.execute((status)
-> actors.addAll(userService.get("123").getActors()));
Where are you configuring your authenticated URL pattern(s)? I only see one uri in your code.
Do you have multiple configure(HttpSecurity) methods or just one? It looks like you need all your URIs in the one method.
I have a site which requires authentication to access everything so I want to protect /*. However in order to authenticate I obviously want to not protect /login. I also have static assets I'd like to allow access to (so I can make the login page pretty) and a healthcheck page that shouldn't require auth.
In addition I have a resource, /admin, which requires higher privledges than the rest of the site.
The following is working for me.
@Override
protected void configure(HttpSecurity http) throws Exception {
http.authorizeRequests()
.antMatchers("/login**").permitAll()
.antMatchers("/healthcheck**").permitAll()
.antMatchers("/static/**").permitAll()
.antMatchers("/admin/**").access("hasRole('ROLE_ADMIN')")
.antMatchers("/**").access("hasRole('ROLE_USER')")
.and()
.formLogin().loginPage("/login").failureUrl("/login?error")
.usernameParameter("username").passwordParameter("password")
.and()
.logout().logoutSuccessUrl("/login?logout")
.and()
.exceptionHandling().accessDeniedPage("/403")
.and()
.csrf();
}
NOTE: This is a first match wins so you may need to play with the order. For example, I originally had /** first:
.antMatchers("/**").access("hasRole('ROLE_USER')")
.antMatchers("/login**").permitAll()
.antMatchers("/healthcheck**").permitAll()
Which caused the site to continually redirect all requests for /login back to /login. Likewise I had /admin/** last:
.antMatchers("/**").access("hasRole('ROLE_USER')")
.antMatchers("/admin/**").access("hasRole('ROLE_ADMIN')")
Which resulted in my unprivledged test user "guest" having access to the admin interface (yikes!)
In order to unit test code that relies on your database you need to setup a database or mock for each and every test.
I am working in an application that has a lot of tables with a lot of connections and some massive Linq blocks. These need testing. A simple grouping missed, or a join that results in more than 1 row will affect results.
To deal with this I have setup a heavy Unit Test Helper that is a lot of work to setup, but enables us to reliably mock the database in any state, and running 48 tests against 55 interconnected tables, with the entire database setup 48 times takes 4.7 seconds.
Here's how:
In the Db context class ensure each table class is set to virtual
public virtual DbSet<Branch> Branches { get; set; }
public virtual DbSet<Warehouse> Warehouses { get; set; }
In a UnitTestHelper class create a method to setup your database. Each table class is an optional parameter. If not supplied, it will be created through a Make method
internal static Db Bootstrap(bool onlyMockPassedTables = false, List<Branch> branches = null, List<Products> products = null, List<Warehouses> warehouses = null)
{
if (onlyMockPassedTables == false) {
branches ??= new List<Branch> { MakeBranch() };
warehouses ??= new List<Warehouse>{ MakeWarehouse() };
}
For each table class, each object in it is mapped to the other lists
branches?.ForEach(b => {
b.Warehouse = warehouses.FirstOrDefault(w => w.ID == b.WarehouseID);
});
warehouses?.ForEach(w => {
w.Branches = branches.Where(b => b.WarehouseID == w.ID);
});
And add it to the DbContext
var context = new Db(new DbContextOptionsBuilder<Db>().UseInMemoryDatabase(Guid.NewGuid().ToString()).Options);
context.Branches.AddRange(branches);
context.Warehouses.AddRange(warehouses);
context.SaveChanges();
return context;
}
Define a list of IDs to make is easier to reuse them and make sure joins are valid
internal const int BranchID = 1;
internal const int WarehouseID = 2;
Create a Make for each table to setup the most basic, but connected version it can be
internal static Branch MakeBranch(int id = BranchID, string code = "The branch", int warehouseId = WarehouseID) => new Branch { ID = id, Code = code, WarehouseID = warehouseId };
internal static Warehouse MakeWarehouse(int id = WarehouseID, string code = "B", string name = "My Big Warehouse") => new Warehouse { ID = id, Code = code, Name = name };
It's a lot of work, but it only needs doing once, and then your tests can be very focused because the rest of the database will be setup for it.
[Test]
[TestCase(new string [] {"ABC", "DEF"}, "ABC", ExpectedResult = 1)]
[TestCase(new string [] {"ABC", "BCD"}, "BC", ExpectedResult = 2)]
[TestCase(new string [] {"ABC"}, "EF", ExpectedResult = 0)]
[TestCase(new string[] { "ABC", "DEF" }, "abc", ExpectedResult = 1)]
public int Given_SearchingForBranchByName_Then_ReturnCount(string[] codesInDatabase, string searchString)
{
// Arrange
var branches = codesInDatabase.Select(x => UnitTestHelpers.MakeBranch(code: $"qqqq{x}qqq")).ToList();
var db = UnitTestHelpers.Bootstrap(branches: branches);
var service = new BranchService(db);
// Act
var result = service.SearchByName(searchString);
// Assert
return result.Count();
}
For me it was tls12:
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
After a fair amount of work, I was able to get it to build on Ubuntu 12.04 x86 and Debian 7.4 x86_64. I wrote up a guide below. Can you please try following it to see if it resolves the issue?
If not please let me know where you get stuck.
Install Common Dependencies
sudo apt-get install build-essential autoconf libtool pkg-config python-opengl python-imaging python-pyrex python-pyside.qtopengl idle-python2.7 qt4-dev-tools qt4-designer libqtgui4 libqtcore4 libqt4-xml libqt4-test libqt4-script libqt4-network libqt4-dbus python-qt4 python-qt4-gl libgle3 python-dev
Install NumArray 1.5.2
wget http://goo.gl/6gL0q3 -O numarray-1.5.2.tgz
tar xfvz numarray-1.5.2.tgz
cd numarray-1.5.2
sudo python setup.py install
Install Numeric 23.8
wget http://goo.gl/PxaHFW -O numeric-23.8.tgz
tar xfvz numeric-23.8.tgz
cd Numeric-23.8
sudo python setup.py install
Install HDF5 1.6.5
wget ftp://ftp.hdfgroup.org/HDF5/releases/hdf5-1.6/hdf5-1.6.5.tar.gz
tar xfvz hdf5-1.6.5.tar.gz
cd hdf5-1.6.5
./configure --prefix=/usr/local
sudo make
sudo make install
Install Nanoengineer
git clone https://github.com/kanzure/nanoengineer.git
cd nanoengineer
./bootstrap
./configure
make
sudo make install
Troubleshooting
On Debian Jessie, you will receive the error message that cant pants mentioned. There seems to be an issue in the automake scripts. x86_64-linux-gnu-gcc
is inserted in CFLAGS
and gcc
will interpret that as a name of one of the source files. As a workaround, let's create an empty file with that name. Empty so that it won't change the program and that very name so that compiler picks it up. From the cloned nanoengineer directory, run this command to make gcc happy (it is a hack yes, but it does work) ...
touch sim/src/x86_64-linux-gnu-gcc
If you receive an error message when attemping to compile HDF5 along the lines of: "error: call to ‘__open_missing_mode’ declared with attribute error: open with O_CREAT in second argument needs 3 arguments", then modify the file perform/zip_perf.c, line 548 to look like the following and then rerun make...
output = open(filename, O_RDWR | O_CREAT, S_IRUSR|S_IWUSR);
If you receive an error message about Numeric/arrayobject.h not being found when building Nanoengineer, try running
export CPPFLAGS=-I/usr/local/include/python2.7
./configure
make
sudo make install
If you receive an error message similar to "TRACE_PREFIX undeclared", modify the file sim/src/simhelp.c lines 38 to 41 to look like this and re-run make:
#ifdef DISTUTILS
static char tracePrefix[] = "";
#else
static char tracePrefix[] = "";
If you receive an error message when trying to launch NanoEngineer-1 that mentions something similar to "cannot import name GL_ARRAY_BUFFER_ARB", modify the lines in the following files
/usr/local/bin/NanoEngineer1_0.9.2.app/program/graphics/drawing/setup_draw.py
/usr/local/bin/NanoEngineer1_0.9.2.app/program/graphics/drawing/GLPrimitiveBuffer.py
/usr/local/bin/NanoEngineer1_0.9.2.app/program/prototype/test_drawing.py
that look like this:
from OpenGL.GL import GL_ARRAY_BUFFER_ARB
from OpenGL.GL import GL_ELEMENT_ARRAY_BUFFER_ARB
to look like this:
from OpenGL.GL.ARB.vertex_buffer_object import GL_ARRAY_BUFFER_AR
from OpenGL.GL.ARB.vertex_buffer_object import GL_ELEMENT_ARRAY_BUFFER_ARB
I also found an additional troubleshooting text file that has been removed, but you can find it here
You need a ResourceLink in your META-INF/context.xml
file to make the global resource available to the web application.
<ResourceLink name="jdbc/mydb"
global="jdbc/mydb"
type="javax.sql.DataSource" />
For Mac OS:
My error was I forgot to select option in XCode - Preferences - Locations - Command Line Tools after new XCode installation (I had 2 versions and later I deleted one). Maybe it will help someone.
In my case the problem was introduced when I fixed a static analysis error that the return value of a method was not used.
Old working code in my Application.java was:
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
New code that introduced the problem was:
public static void main(String[] args) {
try (ConfigurableApplicationContext context =
SpringApplication.run(Application.class, args)) {
LOG.trace("context: " + context);
}
}
Obviously, the try with resource block will close the context after starting the application which will result in the application exiting with status 0. This was a case where the resource leak error reported by snarqube static analysis should be ignored.
A .tex file should be a LaTeX source file.
If this is the case, that file contains the source code for a LaTeX document. You can open it with any text editor (notepad, notepad++ should work) and you can view the source code. But if you want to view the final formatted document, you need to install a LaTeX distribution and compile the .tex file.
Of course, any program can write any file with any extension, so if this is not a LaTeX document, then we can't know what software you need to install to open it. Maybe if you upload the file somewhere and link it in your question we can see the file and provide more help to you.
Yes, this is the source code of a LaTeX document. If you were able to paste it here, then you are already viewing it. If you want to view the compiled document, you need to install a LaTeX distribution. You can try to install MiKTeX then you can use that to compile the document to a .pdf file.
You can also check out this question and answer for how to do it: How to compile a LaTeX document?
Also, there's an online LaTeX editor and you can paste your code in there to preview the document: https://www.overleaf.com/.
stoi
is a C++11 function. If you aren't using a compiler that understands C++11, this simply won't compile.
You can use a stringstream
instead to read the input:
stringstream ss(hours0);
ss >> hours;
When you add an object to $stateProvider.state
that object is then passed with the state. So you can add additional properties which you can read later on when needed.
Example route configuration
$stateProvider
.state('public', {
abstract: true,
module: 'public'
})
.state('public.login', {
url: '/login',
module: 'public'
})
.state('tool', {
abstract: true,
module: 'private'
})
.state('tool.suggestions', {
url: '/suggestions',
module: 'private'
});
The $stateChangeStart
event gives you acces to the toState
and fromState
objects. These state objects will contain the configuration properties.
Example check for the custom module property
$rootScope.$on('$stateChangeStart', function(e, toState, toParams, fromState, fromParams) {
if (toState.module === 'private' && !$cookies.Session) {
// If logged out and transitioning to a logged in page:
e.preventDefault();
$state.go('public.login');
} else if (toState.module === 'public' && $cookies.Session) {
// If logged in and transitioning to a logged out page:
e.preventDefault();
$state.go('tool.suggestions');
};
});
I didn't change the logic of the cookies because I think that is out of scope for your question.
You can create a Helper to get you this to work more modular.
Value publicStates
myApp.value('publicStates', function(){
return {
module: 'public',
routes: [{
name: 'login',
config: {
url: '/login'
}
}]
};
});
Value privateStates
myApp.value('privateStates', function(){
return {
module: 'private',
routes: [{
name: 'suggestions',
config: {
url: '/suggestions'
}
}]
};
});
The Helper
myApp.provider('stateshelperConfig', function () {
this.config = {
// These are the properties we need to set
// $stateProvider: undefined
process: function (stateConfigs){
var module = stateConfigs.module;
$stateProvider = this.$stateProvider;
$stateProvider.state(module, {
abstract: true,
module: module
});
angular.forEach(stateConfigs, function (route){
route.config.module = module;
$stateProvider.state(module + route.name, route.config);
});
}
};
this.$get = function () {
return {
config: this.config
};
};
});
Now you can use the helper to add the state configuration to your state configuration.
myApp.config(['$stateProvider', '$urlRouterProvider',
'stateshelperConfigProvider', 'publicStates', 'privateStates',
function ($stateProvider, $urlRouterProvider, helper, publicStates, privateStates) {
helper.config.$stateProvider = $stateProvider;
helper.process(publicStates);
helper.process(privateStates);
}]);
This way you can abstract the repeated code, and come up with a more modular solution.
Note: the code above isn't tested
Here's some more benchmarks for Docker based memcached server
versus host native memcached server
using Twemperf benchmark tool https://github.com/twitter/twemperf with 5000 connections and 20k connection rate
Connect time overhead for docker based memcached seems to agree with above whitepaper at roughly twice native speed.
Twemperf Docker Memcached
Connection rate: 9817.9 conn/s
Connection time [ms]: avg 341.1 min 73.7 max 396.2 stddev 52.11
Connect time [ms]: avg 55.0 min 1.1 max 103.1 stddev 28.14
Request rate: 83942.7 req/s (0.0 ms/req)
Request size [B]: avg 129.0 min 129.0 max 129.0 stddev 0.00
Response rate: 83942.7 rsp/s (0.0 ms/rsp)
Response size [B]: avg 8.0 min 8.0 max 8.0 stddev 0.00
Response time [ms]: avg 28.6 min 1.2 max 65.0 stddev 0.01
Response time [ms]: p25 24.0 p50 27.0 p75 29.0
Response time [ms]: p95 58.0 p99 62.0 p999 65.0
Twemperf Centmin Mod Memcached
Connection rate: 11419.3 conn/s
Connection time [ms]: avg 200.5 min 0.6 max 263.2 stddev 73.85
Connect time [ms]: avg 26.2 min 0.0 max 53.5 stddev 14.59
Request rate: 114192.6 req/s (0.0 ms/req)
Request size [B]: avg 129.0 min 129.0 max 129.0 stddev 0.00
Response rate: 114192.6 rsp/s (0.0 ms/rsp)
Response size [B]: avg 8.0 min 8.0 max 8.0 stddev 0.00
Response time [ms]: avg 17.4 min 0.0 max 28.8 stddev 0.01
Response time [ms]: p25 12.0 p50 20.0 p75 23.0
Response time [ms]: p95 28.0 p99 28.0 p999 29.0
Here's bencmarks using memtier benchmark tool
memtier_benchmark docker Memcached
4 Threads
50 Connections per thread
10000 Requests per thread
Type Ops/sec Hits/sec Misses/sec Latency KB/sec
------------------------------------------------------------------------
Sets 16821.99 --- --- 1.12600 2271.79
Gets 168035.07 159636.00 8399.07 1.12000 23884.00
Totals 184857.06 159636.00 8399.07 1.12100 26155.79
memtier_benchmark Centmin Mod Memcached
4 Threads
50 Connections per thread
10000 Requests per thread
Type Ops/sec Hits/sec Misses/sec Latency KB/sec
------------------------------------------------------------------------
Sets 28468.13 --- --- 0.62300 3844.59
Gets 284368.51 266547.14 17821.36 0.62200 39964.31
Totals 312836.64 266547.14 17821.36 0.62200 43808.90
This feature has been added in dplyr v0.3. You can now pass a named character vector to the by
argument in left_join
(and other joining functions) to specify which columns to join on in each data frame. With the example given in the original question, the code would be:
left_join(test_data, kantrowitz, by = c("first_name" = "name"))
There's a builtin method find on string objects.
s = "Happy Birthday"
s2 = "py"
print(s.find(s2))
Python is a "batteries included language" there's code written to do most of what you want already (whatever you want).. unless this is homework :)
find
returns -1 if the string cannot be found.
There's something wrong. You have written:
string source_dir = @"E:\\Debug\\VipBat\\{0}";
and the error was
Could not find a part of the path E\Debug\VCCSBat
This is not the same directory.
In your code there's a problem, you have to use:
string source_dir = @"E:\Debug\VipBat"; // remove {0} and the \\ if using @
or
string source_dir = "E:\\Debug\\VipBat"; // remove {0} and the @ if using \\
In my case we added the @Profile annotation newly in order to ignore the TestApplication class in production mode and the Application class in test mode.
Unfortunately, we forgot to add the following line into the application.properties files:
spring.profiles.active=test
or
spring.profiles.active=production
Without these config no profile was loaded which caused the not-so-much saying Spring Error.
C:\....\wildfly-9.0.1.Final\standalone\deployments\YOUR-PROJEKT-FOLDER
I just wanted to give an alternative way to split a string with multiple delimiters, in case you are using a SQL Server version under 2016.
The general idea is to split out all of the characters in the string, determine the position of the delimiters, then obtain substrings relative to the delimiters. Here is a sample:
-- Sample data
DECLARE @testTable TABLE (
TestString VARCHAR(50)
)
INSERT INTO @testTable VALUES
('Teststring,1,2,3')
,('Test')
DECLARE @delimiter VARCHAR(1) = ','
-- Generate numbers with which we can enumerate
;WITH Numbers AS (
SELECT 1 AS N
UNION ALL
SELECT N + 1
FROM Numbers
WHERE N < 255
),
-- Enumerate letters in the string and select only the delimiters
Letters AS (
SELECT n.N
, SUBSTRING(t.TestString, n.N, 1) AS Letter
, t.TestString
, ROW_NUMBER() OVER ( PARTITION BY t.TestString
ORDER BY n.N
) AS Delimiter_Number
FROM Numbers n
INNER JOIN @testTable t
ON n <= LEN(t.TestString)
WHERE SUBSTRING(t.TestString, n, 1) = @delimiter
UNION
-- Include 0th position to "delimit" the start of the string
SELECT 0
, NULL
, t.TestString
, 0
FROM @testTable t
)
-- Obtain substrings based on delimiter positions
SELECT t.TestString
, ds.Delimiter_Number + 1 AS Position
, SUBSTRING(t.TestString, ds.N + 1, ISNULL(de.N, LEN(t.TestString) + 1) - ds.N - 1) AS Delimited_Substring
FROM @testTable t
LEFT JOIN Letters ds
ON t.TestString = ds.TestString
LEFT JOIN Letters de
ON t.TestString = de.TestString
AND ds.Delimiter_Number + 1 = de.Delimiter_Number
OPTION (MAXRECURSION 0)
This is just my personal opinion and folks from web API team can probably articulate it better but here is my 2c.
First of all, I think it is not a question of one over another. You can use them both depending on what you want to do in your action method but in order to understand the real power of IHttpActionResult
, you will probably need to step outside those convenient helper methods of ApiController
such as Ok
, NotFound
, etc.
Basically, I think a class implementing IHttpActionResult
as a factory of HttpResponseMessage
. With that mind set, it now becomes an object that need to be returned and a factory that produces it. In general programming sense, you can create the object yourself in certain cases and in certain cases, you need a factory to do that. Same here.
If you want to return a response which needs to be constructed through a complex logic, say lots of response headers, etc, you can abstract all those logic into an action result class implementing IHttpActionResult
and use it in multiple action methods to return response.
Another advantage of using IHttpActionResult
as return type is that it makes ASP.NET Web API action method similar to MVC. You can return any action result without getting caught in media formatters.
Of course, as noted by Darrel, you can chain action results and create a powerful micro-pipeline similar to message handlers themselves in the API pipeline. This you will need depending on the complexity of your action method.
Long story short - it is not IHttpActionResult
versus HttpResponseMessage
. Basically, it is how you want to create the response. Do it yourself or through a factory.
The ...For
extension methods on the HtmlHelper (e.g., DisplayFor
, TextBoxFor
, ElementFor
, etc...) take a property and nothing else. If you don't have a property, use the non-For
method (e.g., Display
, TextBox
, Element
, etc...).
The ...For
extension methods provides a way of simplifying postback by naming the control after the property. This is why it takes an expression and not simply a value. If you are not interested in this postback facilitation then do not use the ...For
methods at all.
Note: You should not be doing things like calling ToString
inside the view. This should be done inside the view model. I realize that a lot of demo projects put domain objects straight into the view. In my experience, this rarely works because it assumes that you do not want any formatting on the data in the domain entity. Best practice is to create a view model that wraps the entity into something that can be directly consumed by the view. Most of the properties in this view model should be strings that are already formatted or data for which you have element or display templates created.
In my case, I had a OneToOne relation which I was using with @Column
by mistake. I changed it to @JoinColumn
and added @OneToOne
annotation and it fixed the exception.
Here you go. :D
"??".split("").reduce((hex,c)=>hex+=c.charCodeAt(0).toString(16).padStart(4,"0"),"")
"6f225b57"
for non unicode
"hi".split("").reduce((hex,c)=>hex+=c.charCodeAt(0).toString(16).padStart(2,"0"),"")
"6869"
ASCII (utf-8) binary HEX string to string
"68656c6c6f20776f726c6421".match(/.{1,2}/g).reduce((acc,char)=>acc+String.fromCharCode(parseInt(char, 16)),"")
String to ASCII (utf-8) binary HEX string
"hello world!".split("").reduce((hex,c)=>hex+=c.charCodeAt(0).toString(16).padStart(2,"0"),"")
--- unicode ---
String to UNICODE (utf-16) binary HEX string
"hello world!".split("").reduce((hex,c)=>hex+=c.charCodeAt(0).toString(16).padStart(4,"0"),"")
UNICODE (utf-16) binary HEX string to string
"00680065006c006c006f00200077006f0072006c00640021".match(/.{1,4}/g).reduce((acc,char)=>acc+String.fromCharCode(parseInt(char, 16)),"")
Override method authenticationManagerBean
in WebSecurityConfigurerAdapter
to expose the AuthenticationManager built using configure(AuthenticationManagerBuilder)
as a Spring bean:
For example:
@Bean(name = BeanIds.AUTHENTICATION_MANAGER)
@Override
public AuthenticationManager authenticationManagerBean() throws Exception {
return super.authenticationManagerBean();
}
Implement Comparable<Animal>
interface in your class and provide implementation of int compareTo(Animal other)
method in your class.See This Post
if you use spring data jpa , spring boot you can add this line in application.properties
spring.jpa.properties.hibernate.enable_lazy_load_no_trans=true
dplyr
definitely does things that data.table
can not.Your point #3
dplyr abstracts (or will) potential DB interactions
is a direct answer to your own question but isn't elevated to a high enough level. dplyr
is truly an extendable front-end to multiple data storage mechanisms where as data.table
is an extension to a single one.
Look at dplyr
as a back-end agnostic interface, with all of the targets using the same grammer, where you can extend the targets and handlers at will. data.table
is, from the dplyr
perspective, one of those targets.
You will never (I hope) see a day that data.table
attempts to translate your queries to create SQL statements that operate with on-disk or networked data stores.
dplyr
can possibly do things data.table
will not or might not do as well.Based on the design of working in-memory, data.table
could have a much more difficult time extending itself into parallel processing of queries than dplyr
.
Are there analytical tasks that are a lot easier to code with one or the other package for people familiar with the packages (i.e. some combination of keystrokes required vs. required level of esotericism, where less of each is a good thing).
This may seem like a punt but the real answer is no. People familiar with tools seem to use the either the one most familiar to them or the one that is actually the right one for the job at hand. With that being said, sometimes you want to present a particular readability, sometimes a level of performance, and when you have need for a high enough level of both you may just need another tool to go along with what you already have to make clearer abstractions.
Are there analytical tasks that are performed substantially (i.e. more than 2x) more efficiently in one package vs. another.
Again, no. data.table
excels at being efficient in everything it does where dplyr
gets the burden of being limited in some respects to the underlying data store and registered handlers.
This means when you run into a performance issue with data.table
you can be pretty sure it is in your query function and if it is actually a bottleneck with data.table
then you've won yourself the joy of filing a report. This is also true when dplyr
is using data.table
as the back-end; you may see some overhead from dplyr
but odds are it is your query.
When dplyr
has performance issues with back-ends you can get around them by registering a function for hybrid evaluation or (in the case of databases) manipulating the generated query prior to execution.
Also see the accepted answer to when is plyr better than data.table?
If you want to extract from a
tag then
$('.dep_buttons').text().substr(0,25)
With the mouseover event,
$(this).text($(this).text().substr(0, 25));
The above will extract the text of a tag, then extract again assign it back.
Thanks to all for sharing your answers and examples. The same standalone program worked for me by small changes and adding the lines of code below.
In this case, keystore file was given by webservice provider.
// Small changes during connection initiation..
// Please add this static block
static {
HttpsURLConnection.setDefaultHostnameVerifier(new HostnameVerifier()
{ @Override
public boolean verify(String hostname, SSLSession arg1) {
// TODO Auto-generated method stub
if (hostname.equals("X.X.X.X")) {
System.out.println("Return TRUE"+hostname);
return true;
}
System.out.println("Return FALSE");
return false;
}
});
}
String xmlServerURL = "https://X.X.X.X:8080/services/EndpointPort";
URL urlXMLServer = new URL(null,xmlServerURL,new sun.net.www.protocol.https.Handler());
HttpsURLConnection httpsURLConnection = (HttpsURLConnection) urlXMLServer .openConnection();
// Below extra lines are added to the same program
//Keystore file
System.setProperty("javax.net.ssl.keyStore", "Drive:/FullPath/keystorefile.store");
System.setProperty("javax.net.ssl.keyStorePassword", "Password"); // Password given by vendor
//TrustStore file
System.setProperty("javax.net.ssl.trustStore"Drive:/FullPath/keystorefile.store");
System.setProperty("javax.net.ssl.trustStorePassword", "Password");
You've correctly diagnosed your problem, so good job. Once you call into your search code, the for loop just keeps right on going.
I'm a big fan of https://github.com/caolan/async, and it serves me well. Basically with it you'd end up with something like:
var async = require('async')
async.eachSeries(Object.keys(config), function (key, next){
search(config[key].query, function(err, result) { // <----- I added an err here
if (err) return next(err) // <---- don't keep going if there was an error
var json = JSON.stringify({
"result": result
});
results[key] = {
"result": result
}
next() /* <---- critical piece. This is how the forEach knows to continue to
the next loop. Must be called inside search's callback so that
it doesn't loop prematurely.*/
})
}, function(err) {
console.log('iterating done');
});
I hope that helps!
Peeskillet's lame tutorial for working with JTables in Netbeans GUI Builder
Add a button to the frame somwhere,. This button will be clicked when the user is ready to submit a row
Events -> Action -> actionPerformed
You should see code like the following auto-generated
private void jButton1ActionPerformed(java.awt.event.ActionEvent) {}
The jTable1
will have a DefaultTableModel
. You can add rows to the model with your data
private void jButton1ActionPerformed(java.awt.event.ActionEvent) {
String data1 = something1.getSomething();
String data2 = something2.getSomething();
String data3 = something3.getSomething();
String data4 = something4.getSomething();
Object[] row = { data1, data2, data3, data4 };
DefaultTableModel model = (DefaultTableModel) jTable1.getModel();
model.addRow(row);
// clear the entries.
}
So for every set of data like from a couple text fields, a combo box, and a check box, you can gather that data each time the button is pressed and add it as a row to the model.
If you are seeing this issue in a linux container when java application is trying to communicate with another application/site, it is because the certificate have been imported incorrectly into the load balancer. There is sequence of steps to be followed for importing certificates and that if not done correctly, you will see issues like
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid
certification path to requested target
Once the certs are imported correctly, it should be done. No need to tinker with any JDK certs.
This is what worked for me with Android Studio 1.0.2:
File -> Settings-> Gradle Set 'Use default Gradle wrapper.'
The other methods didn't seem to work for me.
According to me, this would happen if there are two offending classes of same name but with different version. Usually, it happens due to servlet-api.jar. If its present in lib folder of your war, then pls remove it using whichever tool used for building war. Or in case of maven, add the dependency with scope specified as "provided". This will solve the compilation issue and at run time it will refer to jar provided by server environment. Pls configure the dependency as follows:
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.0.1</version>
<scope>provided</scope>
</dependency>
Just make sure that your Dates are compatible or can be run properly in your database manager(e.g. SQL Server Management Studio). For example, the DateTime.Now C# function is invalid in SQL server meaning your query has to include valid functions like GETDATE() for SQL Server.
This change has worked perfectly for me.
Instead of the JSON document, you can update the ObjectMapper object like below :
ObjectMapper mapper = new ObjectMapper();
mapper.configure(DeserializationFeature.ACCEPT_SINGLE_VALUE_AS_ARRAY, true);
The method Louis's answer, as a String
prototype function:
String.prototype.splice = function(index, count, add) {
if (index < 0) {
index = this.length + index;
if (index < 0) {
index = 0;
}
}
return this.slice(0, index) + (add || "") + this.slice(index + count);
}
Example:
> "Held!".splice(3,0,"lo Worl")
< "Hello World!"
Judging by the declaration and description of the startsWith
Java function, the "most straight forward way" to implement it in VBA would either be with Left
:
Public Function startsWith(str As String, prefix As String) As Boolean
startsWith = Left(str, Len(prefix)) = prefix
End Function
Or, if you want to have the offset parameter available, with Mid
:
Public Function startsWith(str As String, prefix As String, Optional toffset As Integer = 0) As Boolean
startsWith = Mid(str, toffset + 1, Len(prefix)) = prefix
End Function
Adding dependencies didn't fix the issue at my end.
The issue was happening at my end because of "additional" fields that are part of the "@Entity" class and don't exist in the database.
I removed the additional fields from the @Entity class and it worked.
You can't do that because you can not know the salt at a precise time. Below, a code who works in theory (not tested for the syntaxe)
<?php
$password1 = $_POST['password'];
$salt = 'hello_1m_@_SaLT';
$hashed = hash('sha256', $password1 . $salt);
?>
When you insert :
$qry="INSERT INTO member VALUES('$username', '$hashed')";
And for retrieving user :
$qry="SELECT * FROM member WHERE username='$username' AND password='$hashed'";
It is really old question. Maybe this is usefull. Focusing in your title problem, it is how I start my applications and then I can easily shutdown them. Change the port number for each application you want to start as mentioned above.
application.properties
#using curl -X POST localhost:8080/actuator/shutdown to avoid:
#netstat -ano | find "8080"
#taskkill /F /PID xxxx (xxxx stands for PID)
management.endpoints.web.exposure.include=*
management.endpoint.shutdown.enabled=true
endpoints.shutdown.enabled=true
add this dependency:
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
Now you can shotdown easily by
curl -X POST localhost:8080/actuator/shutdown
Simply, @Id: This annotation specifies the primary key of the entity.
@GeneratedValue: This annotation is used to specify the primary key generation strategy to use. i.e Instructs database to generate a value for this field automatically. If the strategy is not specified by default AUTO will be used.
GenerationType enum defines four strategies:
1. Generation Type . TABLE,
2. Generation Type. SEQUENCE,
3. Generation Type. IDENTITY
4. Generation Type. AUTO
GenerationType.SEQUENCE
With this strategy, underlying persistence provider must use a database sequence to get the next unique primary key for the entities.
GenerationType.TABLE
With this strategy, underlying persistence provider must use a database table to generate/keep the next unique primary key for the entities.
GenerationType.IDENTITY
This GenerationType indicates that the persistence provider must assign primary keys for the entity using a database identity column. IDENTITY column is typically used in SQL Server. This special type column is populated internally by the table itself without using a separate sequence. If underlying database doesn't support IDENTITY column or some similar variant then the persistence provider can choose an alternative appropriate strategy. In this examples we are using H2 database which doesn't support IDENTITY column.
GenerationType.AUTO
This GenerationType indicates that the persistence provider should automatically pick an appropriate strategy for the particular database. This is the default GenerationType, i.e. if we just use @GeneratedValue annotation then this value of GenerationType will be used.
Reference:- https://www.logicbig.com/tutorials/java-ee-tutorial/jpa/jpa-primary-key.html
Alternatively if you want to persist in using the DocumentType
class.
Then you could just add the following annotation on top of your DocumentType class.
@XmlRootElement(name="document")
Note: the String value "document"
refers to the name of the root tag of the xml message.
I created an arrayList from it and I somehow can't find a way to store this information into a JTable.
The DefaultTableModel doesn't support displaying custom Objects stored in an ArrayList. You need to create a custom TableModel.
You can check out the Bean Table Model. It is a reusable class that will use reflection to find all the data in your FootballClub class and display in a JTable.
Or, you can extend the Row Table Model
found in the above link to make is easier to create your own custom TableModel by implementing a few methods. The JButtomTableModel.java
source code give a complete example of how you can do this.
This one helped me,
res.format({
json:function(){
var responseData = {};
responseData['status'] = 200;
responseData['outputPath'] = outputDirectoryPath;
responseData['sourcePath'] = url;
responseData['message'] = 'Scraping of requested resource initiated.';
responseData['logfile'] = logFileName;
res.json(JSON.stringify(responseData));
}
});
see more this url:
http://www.baeldung.com/spring-nosuchbeandefinitionexception
I had the same problem, resolved it by adding
<filtering>true</filtering>
in pom.xml :
before (didn't work):
<build>
<resources>
<resource>
<directory>src/main/resources</directory>
</resource>
</resources>
</build>
after(it worked):
<build>
<resources>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
</resource>
</resources>
</build>
After that you just run mvn clean install and deploy application.
You can try as follows it works for me
select * from nm_admission where trunc(entry_timestamp) = to_date('09-SEP-2018','DD-MM-YY');
OR
select * from nm_admission where trunc(entry_timestamp) = '09-SEP-2018';
You can also try using to_char but remember to_char is too expensive
select * from nm_admission where to_char(entry_timestamp) = to_date('09-SEP-2018','DD-MM-YY');
The TRUNC(17-SEP-2018 08:30:11) will give 17-SEP-2018 00:00:00 as a result, you can compare the only date portion independently and time portion will skip.
For me, I changed C:\apps\Java\jdk1.8_162\bin\javac.exe to C:\apps\Java\jdk1.8_162\bin\javacpl.exe Since there was no executable with that name in the bin folder. That worked.
The issue here is that the version of spring-web
that you're using (3.1.1-RELEASE) is not compatible with the version of spring-beans
that you're using (3.0.2-RELEASE). At the top of the stack you can see the NoSuchMethodError
which in turn triggers the BeanFactory not initialized...
exception.
The NoSuchMethodError
is caused because the method invocation XmlWebApplicationContext.loadBeanDefinitions()
in spring-web
is trying to call XmlBeanDefinitionReader.setEnvironment()
in spring-beans
which doesn't exist in 3.0.2-RELEASE. It does however exist in 3.1.1-RELEASE - as setEnvironment
is inherited from the parent AbstractBeanDefinitionReader
.
To resolve, you'd probably be best to upgrade the spring-beans
jar to 3.1.1-RELEASE. The version for this jar appears to be parameterized in your pom.xml and is controlled by the property org.springframework.version
further down in the file.
Don't transform to string and compare. This is not good for perfomance.
In the junit, inside Corematchers, there's a matcher for this => hasItems
List<Integer> yourList = Arrays.asList(1,2,3,4)
assertThat(yourList, CoreMatchers.hasItems(1,2,3,4,5));
This is the better way that I know of to check elements in a list.
changing templateUrl: ''
to template: ''
fixed it
You could also use the className
property of the element's DOM object:
var $hello = $('#hello');
$('#hello').attr('class', $hello.get(0).className.replace(/\bcolor-\S+/g, ''));
// use: clone( <thing to copy> ) returns <new copy>
// untested use at own risk
function clone(o, m){
// return non object values
if('object' !==typeof o) return o
// m: a map of old refs to new object refs to stop recursion
if('object' !==typeof m || null ===m) m =new WeakMap()
var n =m.get(o)
if('undefined' !==typeof n) return n
// shallow/leaf clone object
var c =Object.getPrototypeOf(o).constructor
// TODO: specialize copies for expected built in types i.e. Date etc
switch(c) {
// shouldn't be copied, keep reference
case Boolean:
case Error:
case Function:
case Number:
case Promise:
case String:
case Symbol:
case WeakMap:
case WeakSet:
n =o
break;
// array like/collection objects
case Array:
m.set(o, n =o.slice(0))
// recursive copy for child objects
n.forEach(function(v,i){
if('object' ===typeof v) n[i] =clone(v, m)
});
break;
case ArrayBuffer:
m.set(o, n =o.slice(0))
break;
case DataView:
m.set(o, n =new (c)(clone(o.buffer, m), o.byteOffset, o.byteLength))
break;
case Map:
case Set:
m.set(o, n =new (c)(clone(Array.from(o.entries()), m)))
break;
case Int8Array:
case Uint8Array:
case Uint8ClampedArray:
case Int16Array:
case Uint16Array:
case Int32Array:
case Uint32Array:
case Float32Array:
case Float64Array:
m.set(o, n =new (c)(clone(o.buffer, m), o.byteOffset, o.length))
break;
// use built in copy constructor
case Date:
case RegExp:
m.set(o, n =new (c)(o))
break;
// fallback generic object copy
default:
m.set(o, n =Object.assign(new (c)(), o))
// recursive copy for child objects
for(c in n) if('object' ===typeof n[c]) n[c] =clone(n[c], m)
}
return n
}
**Use Spread Operators| ES6 **
let datesVar = [ 2017-10-26T03:37:10.876Z,
2017-10-27T03:37:10.876Z,
2017-10-23T03:37:10.876Z,
2015-10-23T03:37:10.876Z ]
Math.min(...datesVar);
That will give the minimum date from the array.
Its shorthand Math.min.apply(null, ArrayOfdates);
It specifies the size of the log file to trigger rotation. For example size 50M
will trigger a log rotation once the file is 50MB or greater in size. You can use the suffix M
for megabytes, k
for kilobytes, and G
for gigabytes. If no suffix is used, it will take it to mean bytes. You can check the example at the end. There are three directives available size
, maxsize
, and minsize
. According to manpage:
minsize size
Log files are rotated when they grow bigger than size bytes,
but not before the additionally specified time interval (daily,
weekly, monthly, or yearly). The related size option is simi-
lar except that it is mutually exclusive with the time interval
options, and it causes log files to be rotated without regard
for the last rotation time. When minsize is used, both the
size and timestamp of a log file are considered.
size size
Log files are rotated only if they grow bigger then size bytes.
If size is followed by k, the size is assumed to be in kilo-
bytes. If the M is used, the size is in megabytes, and if G is
used, the size is in gigabytes. So size 100, size 100k, size
100M and size 100G are all valid.
maxsize size
Log files are rotated when they grow bigger than size bytes even before
the additionally specified time interval (daily, weekly, monthly,
or yearly). The related size option is similar except that it
is mutually exclusive with the time interval options, and it causes
log files to be rotated without regard for the last rotation time.
When maxsize is used, both the size and timestamp of a log file are
considered.
Here is an example:
"/var/log/httpd/access.log" /var/log/httpd/error.log {
rotate 5
mail [email protected]
size 100k
sharedscripts
postrotate
/usr/bin/killall -HUP httpd
endscript
}
Here is an explanation for both files /var/log/httpd/access.log
and /var/log/httpd/error.log
. They are rotated whenever it grows over 100k in size, and the old logs files are mailed (uncompressed) to [email protected]
after going through 5 rotations, rather than being removed. The sharedscripts
means that the postrotate
script will only be run once (after the old logs have been compressed), not once for each log which is rotated. Note that the double quotes around the first filename at the beginning of this section allows logrotate to rotate logs with spaces in the name. Normal shell quoting rules apply, with ,
, and \
characters supported.
And if you do that very often, you could use a ViewSwitcher or a ViewFlipper to ease view substitution.
Retaining all questions ids with small tweak
Map<Integer, Boolean> answerMap =
answerList.stream()
.collect(Collectors.toMap(Answer::getId, a ->
Boolean.TRUE.equals(a.getAnswer())));
Works for IE, Mozzila, Chrome
document.getElementById('YOUR IFRAME').contentDocument.location.reload(true);
This still isn't automatic, as I wish there was an option for - and there should be some checking to make sure that this can only happen for fast-forward updates (which is why manually doing a pull is far safer!!), but caveats aside you can:
git fetch origin
git update-ref refs/heads/other-branch origin/other-branch
to update the position of your local branch without having to check it out.
Note: you will be losing your current branch position and moving it to where the origin's branch is, which means that if you need to merge you will lose data!
You're mixing up two separate concepts. Function inlining is a compiler optimization which has no impact on the semantics. A function behaves the same whether it's inlined or not.
On the other hand, lambda functions are purely a semantic concept. There is no requirement on how they should be implemented or executed, as long as they follow the behavior set out in the language spec. They can be inlined if the JIT compiler feels like it, or not if it doesn't.
There is no inline keyword in C#, because it's an optimization that can usually be left to the compiler, especially in JIT'ed languages. The JIT compiler has access to runtime statistics which enables it to decide what to inline much more efficiently than you can when writing the code. A function will be inlined if the compiler decides to, and there's nothing you can do about it either way. :)
I was able to create an EntityManager
with Hibernate and PostgreSQL purely using Java code (with a Spring configuration) the following:
@Bean
public DataSource dataSource() {
final PGSimpleDataSource dataSource = new PGSimpleDataSource();
dataSource.setDatabaseName( "mytestdb" );
dataSource.setUser( "myuser" );
dataSource.setPassword("mypass");
return dataSource;
}
@Bean
public Properties hibernateProperties(){
final Properties properties = new Properties();
properties.put( "hibernate.dialect", "org.hibernate.dialect.PostgreSQLDialect" );
properties.put( "hibernate.connection.driver_class", "org.postgresql.Driver" );
properties.put( "hibernate.hbm2ddl.auto", "create-drop" );
return properties;
}
@Bean
public EntityManagerFactory entityManagerFactory( DataSource dataSource, Properties hibernateProperties ){
final LocalContainerEntityManagerFactoryBean em = new LocalContainerEntityManagerFactoryBean();
em.setDataSource( dataSource );
em.setPackagesToScan( "net.initech.domain" );
em.setJpaVendorAdapter( new HibernateJpaVendorAdapter() );
em.setJpaProperties( hibernateProperties );
em.setPersistenceUnitName( "mytestdomain" );
em.setPersistenceProviderClass(HibernatePersistenceProvider.class);
em.afterPropertiesSet();
return em.getObject();
}
The call to LocalContainerEntityManagerFactoryBean.afterPropertiesSet()
is essential since otherwise the factory never gets built, and then getObject()
returns null
and you are chasing after NullPointerException
s all day long. >:-(
It then worked with the following code:
PageEntry pe = new PageEntry();
pe.setLinkName( "Google" );
pe.setLinkDestination( new URL( "http://www.google.com" ) );
EntityTransaction entTrans = entityManager.getTransaction();
entTrans.begin();
entityManager.persist( pe );
entTrans.commit();
Where my entity was this:
@Entity
@Table(name = "page_entries")
public class PageEntry {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private long id;
private String linkName;
private URL linkDestination;
// gets & setters omitted
}
Here's how you could use different methods to do selective column slicing, including selective label based, index based and the selective ranges based column slicing.
In [37]: import pandas as pd
In [38]: import numpy as np
In [43]: df = pd.DataFrame(np.random.rand(4,7), columns = list('abcdefg'))
In [44]: df
Out[44]:
a b c d e f g
0 0.409038 0.745497 0.890767 0.945890 0.014655 0.458070 0.786633
1 0.570642 0.181552 0.794599 0.036340 0.907011 0.655237 0.735268
2 0.568440 0.501638 0.186635 0.441445 0.703312 0.187447 0.604305
3 0.679125 0.642817 0.697628 0.391686 0.698381 0.936899 0.101806
In [45]: df.loc[:, ["a", "b", "c"]] ## label based selective column slicing
Out[45]:
a b c
0 0.409038 0.745497 0.890767
1 0.570642 0.181552 0.794599
2 0.568440 0.501638 0.186635
3 0.679125 0.642817 0.697628
In [46]: df.loc[:, "a":"c"] ## label based column ranges slicing
Out[46]:
a b c
0 0.409038 0.745497 0.890767
1 0.570642 0.181552 0.794599
2 0.568440 0.501638 0.186635
3 0.679125 0.642817 0.697628
In [47]: df.iloc[:, 0:3] ## index based column ranges slicing
Out[47]:
a b c
0 0.409038 0.745497 0.890767
1 0.570642 0.181552 0.794599
2 0.568440 0.501638 0.186635
3 0.679125 0.642817 0.697628
### with 2 different column ranges, index based slicing:
In [49]: df[df.columns[0:1].tolist() + df.columns[1:3].tolist()]
Out[49]:
a b c
0 0.409038 0.745497 0.890767
1 0.570642 0.181552 0.794599
2 0.568440 0.501638 0.186635
3 0.679125 0.642817 0.697628
Thats too easy to use javascrpt. thats not hover problem thats focus problem. set outline to none when focus using css.
.button:focus {
outline: none;
}
Everyone is right: stick with POST for non-idempotent requests.
What about using both an URI query string and request content? Well it's valid HTTP (see note 1), so why not?!
It is also perfectly logical: URLs, including their query string part, are for locating resources. Whereas HTTP method verbs (POST - and its optional request content) are for specifying actions, or what to do with resources. Those should be orthogonal concerns. (But, they are not beautifully orthogonal concerns for the special case of ContentType=application/x-www-form-urlencoded, see note 2 below.)
Note 1: HTTP specification (1.1) does not state that query parameters and content are mutually exclusive for a HTTP server that accepts POST or PUT requests. So any server is free to accept both. I.e. if you write the server there's nothing to stop you choosing to accept both (except maybe an inflexible framework). Generally, the server can interpret query strings according to whatever rules it wants. It can even interpret them with conditional logic that refers to other headers like Content-Type too, which leads to Note 2:
Note 2: if a web browser is the primary way people are accessing your web application, and application/x-www-form-urlencoded is the Content-Type they are posting, then you should follow the rules for that Content-Type. And the rules for application/x-www-form-urlencoded are much more specific (and frankly, unusual): in this case you must interpret the URI as a set of parameters, and not a resource location. [This is the same point of usefulness Powerlord raised; that it may be hard to use web forms to POST content to your server. Just explained a little differently.]
Note 3: what are query strings originally for? RFC 3986 defines HTTP query strings as an URI part that works as a non-hierarchical way of locating a resource.
In case readers asking this question wish to ask what is good RESTful architecture: the RESTful architecture pattern doesn't require URI schemes to work a specific way. RESTful architecture concerns itself with other properties of the system, like cacheability of resources, the design of the resources themselves (their behavior, capabilities, and representations), and whether idempotence is satisfied. Or in other words, achieving a design which is highly compatible with HTTP protocol and its set of HTTP method verbs. :-) (In other words, RESTful architecture is not very presciptive with how the resources are located.)
Final note: sometimes query parameters get used for yet other things, which are neither locating resources nor encoding content. Ever seen a query parameter like 'PUT=true' or 'POST=true'? These are workarounds for browsers that don't allow you to use PUT and POST methods. While such parameters are seen as part of the URL query string (on the wire), I argue that they are not part of the URL's query in spirit.
You can do this with the hex codec. ie:
>>> s='000000000000484240FA063DE5D0B744ADBED63A81FAEA390000C8428640A43D5005BD44'
>>> s.decode('hex')
'\x00\x00\x00\x00\x00\x00HB@\xfa\x06=\xe5\xd0\xb7D\xad\xbe\xd6:\x81\xfa\xea9\x00\x00\xc8B\x86@\xa4=P\x05\xbdD'
You can use normal CSS selectors to select an element by name using jquery. Like this:
Button Code
<button type="button" name="mybutton">Click Me!</button>
Selector & Event Bind Code
$("button[name='mybutton']").click(function() {});
Follow the below steps:
Select body > form-data and do same as shown in the image.
Now in your Django view.py
def post(self, request, *args, **kwargs): image = request.FILES["image"] data = json.loads(request.data['data']) ... return Response(...)
Another nifty way is:
DATEADD(dd, 0, DATEDIFF(dd, 0, [YourDate]))
Which gets the number of days from DAY 0 to YourDate and the adds it to DAY 0 to set the baseline again. This method (or "derivatives" hereof) can be used for a bunch of other date manipulation.
Edit - other date calculations:
First Day of Month:
DATEADD(mm, DATEDIFF(mm, 0, getdate()), 0)
First Day of the Year:
DATEADD(yy, DATEDIFF(yy, 0, getdate()), 0)
First Day of the Quarter:
DATEADD(qq, DATEDIFF(qq, 0, getdate()), 0)
Last Day of Prior Month:
DATEADD(ms, -3, DATEADD(mm, DATEDIFF(mm, 0, getdate()), 0))
Last Day of Current Month:
DATEADD(ms, -3, DATEADD(mm, DATEDIFF(m, 0, getdate()) + 1, 0))
Last Day of Current Year:
DATEADD(ms, -3, DATEADD(yy, DATEDIFF(yy, 0, getdate()) + 1, 0))
First Monday of the Month:
DATEADD(wk, DATEDIFF(wk, 0, DATEADD(dd, 6 - DATEPART(day, getdate()), getdate())), 0)
Edit: True, Joe, it does not add it to DAY 0, it adds 0 (days) to the number of days which basically just converts it back to a datetime.
In case it helps anyone setBackgroundImage
didn't work for me, but setImage
did
I used dave1010's solution, but it was a bit jumpy when I put it inside the $().ready function. So I did this: (not inside the $().ready)
if (location.hash) { // do the test straight away
window.scrollTo(0, 0); // execute it straight away
setTimeout(function() {
window.scrollTo(0, 0); // run it a bit later also for browser compatibility
}, 1);
}
The ternary operator (?:
) is not designed for control flow, it's only designed for conditional assignment. If you need to control the flow of your program, use a control structure, such as if
/else
.
@HostListener
is a decorator for the callback/event handler method, so remove the ;
at the end of this line:
@HostListener('click', ['$event.target']);
Here's a working plunker that I generated by copying the code from the API docs, but I put the onClick()
method on the same line for clarity:
import {Component, HostListener, Directive} from 'angular2/core';
@Directive({selector: 'button[counting]'})
class CountClicks {
numberOfClicks = 0;
@HostListener('click', ['$event.target']) onClick(btn) {
console.log("button", btn, "number of clicks:", this.numberOfClicks++);
}
}
@Component({
selector: 'my-app',
template: `<button counting>Increment</button>`,
directives: [CountClicks]
})
export class AppComponent {
constructor() { console.clear(); }
}
Host binding can also be used to listen to global events:
To listen to global events, a target must be added to the event name. The target can be window, document or body (reference)
@HostListener('document:keyup', ['$event'])
handleKeyboardEvent(kbdEvent: KeyboardEvent) { ... }
Window -> Show View -> Other -> Studio/Remote
(Drag this tabbed window wherever)
Click the add FTP button (see below); #profit
I use objects JSON style for dumb structs (no member functions).
This code using merge and convert 200 dbi
static void Main(string[] args)
{ Path string Outputpath = @"C:\Users\MDASARATHAN\Desktop\TX_HARDIN_10-01-2016_K";
string[] TotalFiles = Directory.GetFiles(Outputpath, "*.tif", SearchOption.AllDirectories);
foreach (string filename in TotalFiles)
{
Bitmap bitmap = (Bitmap)Image.FromFile(filename);
string ExportFilename = string.Empty;
int Pagecount = 0;
bool bFirstImage = true;
bitmap.SetResolution(200, 200);
ExportFilename = Path.GetDirectoryName(filename) + "\\" + Path.GetFileName(filename)+"f";
MemoryStream byteStream = new MemoryStream();
Pagecount = bitmap.GetFrameCount(FrameDimension.Page);
if (bFirstImage)
{
bitmap.Save(byteStream, ImageFormat.Tiff);
bFirstImage = false;
} Image tiff = Image.FromStream(byteStream);
ImageCodecInfo encoderInfo = ImageCodecInfo.GetImageEncoders().First(i => i.MimeType == "image/tiff");
EncoderParameters encoderParams = new EncoderParameters(2);
EncoderParameter parameter = new EncoderParameter(System.Drawing.Imaging.Encoder.Compression, (long)EncoderValue.CompressionCCITT4);
encoderParams.Param[0] = parameter;
parameter = new EncoderParameter(System.Drawing.Imaging.Encoder.SaveFlag, (long)EncoderValue.MultiFrame);
encoderParams.Param[1] = parameter;
// bitmap.Dispose();
try
{
tiff.Save(ExportFilename, encoderInfo, encoderParams);
}
catch (Exception ex)
{
}
EncoderParameters EncoderParams = new EncoderParameters(2);
EncoderParameter SaveEncodeParam = new EncoderParameter(System.Drawing.Imaging.Encoder.SaveFlag, (long)EncoderValue.FrameDimensionPage);
EncoderParameter CompressionEncodeParam = new EncoderParameter(System.Drawing.Imaging.Encoder.Compression, (long)EncoderValue.CompressionCCITT4);
EncoderParams.Param[0] = CompressionEncodeParam;
EncoderParams.Param[1] = SaveEncodeParam;
if (bFirstImage == false)
{
for (int i = 1; i < Pagecount; i++)
{
//bitmap = (Bitmap)Image.FromFile(filenames);
byteStream = new MemoryStream();
bitmap.SelectActiveFrame(FrameDimension.Page, i);
bitmap.Save(byteStream, ImageFormat.Tiff);
bitmap.SetResolution(200, 200);
tiff.SaveAdd(bitmap, EncoderParams);
}
} SaveEncodeParam = new EncoderParameter(System.Drawing.Imaging.Encoder.SaveFlag, (long)EncoderValue.Flush);
EncoderParams = new EncoderParameters(1);
EncoderParams.Param[0] = SaveEncodeParam;
tiff.SaveAdd(EncoderParams);
tiff.Dispose();
bitmap.Dispose();
File.Delete(filename);
}
}
To turn off line numbering, again follow the preceding instructions, except this time enter the following line at the : prompt:
set nonumber
For completeness sake the reverse function:
function a2hex(str) {
var arr = [];
for (var i = 0, l = str.length; i < l; i ++) {
var hex = Number(str.charCodeAt(i)).toString(16);
arr.push(hex);
}
return arr.join('');
}
a2hex('2460'); //returns 32343630
For this you have to use HtmlAttributes, but there is a catch: HtmlAttributes and css class .
you can define it like this:
new { Attrubute="Value", AttributeTwo = IntegerValue, @class="className" };
and here is a more realistic example:
new { style="width:50px" };
new { style="width:50px", maxsize = 50 };
new {size=30, @class="required"}
and finally in:
MVC 1
<%= Html.TextBox("test", new { style="width:50px" }) %>
MVC 2
<%= Html.TextBox("test", null, new { style="width:50px" }) %>
MVC 3
@Html.TextBox("test", null, new { style="width:50px" })
It works here:
$ wget -S -O - http://google.com
HTTP request sent, awaiting response...
HTTP/1.1 301 Moved Permanently
Location: http://www.google.com/
Content-Type: text/html; charset=UTF-8
Date: Sat, 25 Aug 2012 10:15:38 GMT
Expires: Mon, 24 Sep 2012 10:15:38 GMT
Cache-Control: public, max-age=2592000
Server: gws
Content-Length: 219
X-XSS-Protection: 1; mode=block
X-Frame-Options: SAMEORIGIN
Location: http://www.google.com/ [following]
--2012-08-25 12:20:29-- http://www.google.com/
Resolving www.google.com (www.google.com)... 173.194.69.99, 173.194.69.104, 173.194.69.106, ...
...skipped a few more redirections ...
[<=> ] 0 --.-K/s
<!doctype html><html itemscope="itemscope" itemtype="http://schema.org/WebPage"><head><meta itemprop="image" content="/images/google_favicon_128.png"><ti
... skipped ...
perhaps you need to update your wget (~$ wget --version
GNU Wget 1.14 built on linux-gnu.
)
It works by same principle of anonymous inner class where we can instantiate an interface without actually defining a class :
Ref: https://www.geeksforgeeks.org/anonymous-inner-class-java/
Thanks to Erhun's answer I finally realised that my JSON mapper was returning the quotation marks around my data too! I needed to use "asText()" instead of "toString()"
It's not an uncommon issue - one's brain doesn't see anything wrong with the correct data, surrounded by quotes!
discoveryJson.path("some_endpoint").toString();
"https://what.the.com/heck"
discoveryJson.path("some_endpoint").asText();
https://what.the.com/heck
Use the lsof command "lsof -i tcp:port #", here is an example.
$ lsof -i tcp:1555
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
java 27330 john 121u IPv4 36028819 0t0 TCP 10.10.10.1:58615->10.10.10.10:livelan (ESTABLISHED)
java 27330 john 201u IPv4 36018833 0t0 TCP 10.10.10.1:58586->10.10.10.10:livelan (ESTABLISHED)
java 27330 john 264u IPv4 36020018 0t0 TCP 10.10.10.1:58598->10.10.10.10:livelan (ESTABLISHED)
java 27330 john 312u IPv4 36058194 0t0 TCP 10.10.10.1:58826->10.10.10.10:livelan (ESTABLISHED)
You're changing the size of the list while iterating over it, which is probably not what you want and is the cause of your error.
Edit: As others have answered and commented, list comprehensions are better as a first choice and especially so in response to this question. I offered this as an alternative for that reason, and while not the best answer, it still solves the problem.
So on that note, you could also use filter
, which allows you to call a function to evaluate the items in the list you don't want.
Example:
>>> l = [1,2,3,0,0,1]
>>> filter(lambda x: x > 0, l)
[1, 2, 3]
Live and learn. Simple is better, except when you need things to be complex.
Basically same as the accepted answer, but updated with new type and multiple country restrictions:
function initialize() {
var options = {
types: ['(regions)'],
componentRestrictions: {country: ["us", "de"]}
};
var input = document.getElementById('searchTextField');
var autocomplete = new google.maps.places.Autocomplete(input, options);
}
Using '(regions)'
instead of '(cities)'
allows to search by postal code as well as city name.
See official documentation, Table 3: https://developers.google.com/places/supported_types
I converted back to number like this..
const timeNow = '' + 12 + 45;
const openTime = parseInt(timeNow, 10);
output 1245
-- edit --
sorry,
for my use this still did not work for me after testing . I had to add the missing zero back in as it was being removed on numbers smaller than 10, my use is for letting code run at certain times May not be correct but it seems to work (so far).
h = new Date().getHours();
m = new Date().getMinutes();
isOpen: boolean;
timeNow = (this.m < 10) ? '' + this.h + 0 + this.m : '' + this.h + this.m;
openTime = parseInt(this.timeNow);
closed() {
(this.openTime >= 1450 && this.openTime <= 1830) ? this.isOpen = true :
this.isOpen = false;
(this.openTime >= 715 && this.openTime <= 915) ? this.isOpen = true :
this.isOpen = false;
}
The vote down was nice thank you :)
I am new to this and come here to learn from you guys an explanation of why would of been nice.
Anyways updated my code to show how i fixed my problem as this post helped me figure it out.
We are already in 21st century!! Don't try to implement the already existing data structures. Try to use the existing data structures.
Use STL or Boost library
The second one causes a new char array to be created, and all chars from the String to be copied to this new char array, so I would guess that the first one is faster (and less memory-hungry).
Consider below example
We will consider the integer and fractional part separately.
The integral part is easy, 2 = 10.
For the fractional part:
0.625 × 2 = 1.25 1 Generate 1 and continue with the rest.
0.25 × 2 = 0.5 0 Generate 0 and continue.
0.5 × 2 = 1.0 1 Generate 1 and nothing remains.
So 0.625 = 0.101, and 2.625 = 10.101.
See this link for more information.
Use this approach to sum the list of BigDecimal:
List<BigDecimal> values = ... // List of BigDecimal objects
BigDecimal sum = values.stream().reduce((x, y) -> x.add(y)).get();
This approach maps each BigDecimal as a BigDecimal only and reduces them by summing them, which is then returned using the get()
method.
Here's another simple way to do the same summing:
List<BigDecimal> values = ... // List of BigDecimal objects
BigDecimal sum = values.stream().reduce(BigDecimal::add).get();
Update
If I were to write the class and lambda expression in the edited question, I would have written it as follows:
import java.math.BigDecimal;
import java.util.LinkedList;
public class Demo
{
public static void main(String[] args)
{
LinkedList<Invoice> invoices = new LinkedList<>();
invoices.add(new Invoice("C1", "I-001", BigDecimal.valueOf(.1), BigDecimal.valueOf(10)));
invoices.add(new Invoice("C2", "I-002", BigDecimal.valueOf(.7), BigDecimal.valueOf(13)));
invoices.add(new Invoice("C3", "I-003", BigDecimal.valueOf(2.3), BigDecimal.valueOf(8)));
invoices.add(new Invoice("C4", "I-004", BigDecimal.valueOf(1.2), BigDecimal.valueOf(7)));
// Java 8 approach, using Method Reference for mapping purposes.
invoices.stream().map(Invoice::total).forEach(System.out::println);
System.out.println("Sum = " + invoices.stream().map(Invoice::total).reduce((x, y) -> x.add(y)).get());
}
// This is just my style of writing classes. Yours can differ.
static class Invoice
{
private String company;
private String number;
private BigDecimal unitPrice;
private BigDecimal quantity;
public Invoice()
{
unitPrice = quantity = BigDecimal.ZERO;
}
public Invoice(String company, String number, BigDecimal unitPrice, BigDecimal quantity)
{
setCompany(company);
setNumber(number);
setUnitPrice(unitPrice);
setQuantity(quantity);
}
public BigDecimal total()
{
return unitPrice.multiply(quantity);
}
public String getCompany()
{
return company;
}
public void setCompany(String company)
{
this.company = company;
}
public String getNumber()
{
return number;
}
public void setNumber(String number)
{
this.number = number;
}
public BigDecimal getUnitPrice()
{
return unitPrice;
}
public void setUnitPrice(BigDecimal unitPrice)
{
this.unitPrice = unitPrice;
}
public BigDecimal getQuantity()
{
return quantity;
}
public void setQuantity(BigDecimal quantity)
{
this.quantity = quantity;
}
}
}
It's because your enum
is not the standard library enum
module. You probably have the package enum34
installed.
One way check if this is the case is to inspect the property enum.__file__
import enum
print(enum.__file__)
# standard library location should be something like
# /usr/local/lib/python3.6/enum.py
Since python 3.6 the enum34 library is no longer compatible with the standard library. The library is also unnecessary, so you can simply uninstall it.
pip uninstall -y enum34
If you need the code to run on python versions both <=3.4 and >3.4, you can try having enum-compat
as a requirement. It only installs enum34
for older versions of python without the standard library enum.
Try modifying the "style" attribute:
$('myObject').attr('style', 'background-image: url("' + imageUrl +'")');
For the question
How can i run a jar file in command prompt but with arguments
.
To pass arguments to the jar file at the time of execution
java -jar myjar.jar arg1 arg2
In the main() method of "Main-Class" [mentioned in the manifest.mft file]of your JAR file. you can retrieve them like this:
String arg1 = args[0];
String arg2 = args[1];
For portability to pre-Bash 3.1 (when the =~
test was introduced), use expr
.
if expr "$string" : '-\?[0-9]\+$' >/dev/null
then
echo "String is a valid integer."
else
echo "String is not a valid integer."
fi
expr STRING : REGEX
searches for REGEX anchored at the start of STRING, echoing the first group (or length of match, if none) and returning success/failure. This is old regex syntax, hence the excess \
. -\?
means "maybe -
", [0-9]\+
means "one or more digits", and $
means "end of string".
Bash also supports extended globs, though I don't recall from which version onwards.
shopt -s extglob
case "$string" of
@(-|)[0-9]*([0-9]))
echo "String is a valid integer." ;;
*)
echo "String is not a valid integer." ;;
esac
# equivalently, [[ $string = @(-|)[0-9]*([0-9])) ]]
@(-|)
means "-
or nothing", [0-9]
means "digit", and *([0-9])
means "zero or more digits".
i had same problem. use 'clear browsing data' in chrome. maybe solve your problem.
Maybe the easiest way is. Get the DeviceId Nuget package
And use it like
string deviceId = new DeviceIdBuilder()
.AddMachineName()
.AddMacAddress()
.AddProcessorId()
.AddMotherboardSerialNumber()
.ToString();
You can personalize the info used to generate the ID
This splits the Seatblocks by space and gives each its own row.
In [43]: df
Out[43]:
CustNum CustomerName ItemQty Item Seatblocks ItemExt
0 32363 McCartney, Paul 3 F04 2:218:10:4,6 60
1 31316 Lennon, John 25 F01 1:13:36:1,12 1:13:37:1,13 300
In [44]: s = df['Seatblocks'].str.split(' ').apply(Series, 1).stack()
In [45]: s.index = s.index.droplevel(-1) # to line up with df's index
In [46]: s.name = 'Seatblocks' # needs a name to join
In [47]: s
Out[47]:
0 2:218:10:4,6
1 1:13:36:1,12
1 1:13:37:1,13
Name: Seatblocks, dtype: object
In [48]: del df['Seatblocks']
In [49]: df.join(s)
Out[49]:
CustNum CustomerName ItemQty Item ItemExt Seatblocks
0 32363 McCartney, Paul 3 F04 60 2:218:10:4,6
1 31316 Lennon, John 25 F01 300 1:13:36:1,12
1 31316 Lennon, John 25 F01 300 1:13:37:1,13
Or, to give each colon-separated string in its own column:
In [50]: df.join(s.apply(lambda x: Series(x.split(':'))))
Out[50]:
CustNum CustomerName ItemQty Item ItemExt 0 1 2 3
0 32363 McCartney, Paul 3 F04 60 2 218 10 4,6
1 31316 Lennon, John 25 F01 300 1 13 36 1,12
1 31316 Lennon, John 25 F01 300 1 13 37 1,13
This is a little ugly, but maybe someone will chime in with a prettier solution.
char str[]= "Hello\0";
That would be 7 bytes.
In memory it'd be:
48 65 6C 6C 6F 00 00
H e l l o \0 \0
Edit:
What does the \0 symbol mean in a C string?
It's the "end" of a string. A null character. In memory, it's actually a Zero. Usually functions that handle char arrays look for this character, as this is the end of the message. I'll put an example at the end.
What is the length of str array? (Answered before the edit part)
7
and with how much 0s it is ending?
You array has two "spaces" with zero; str[5]=str[6]='\0'=0
Extra example:
Let's assume you have a function that prints the content of that text array.
You could define it as:
char str[40];
Now, you could change the content of that array (I won't get into details on how to), so that it contains the message: "This is just a printing test" In memory, you should have something like:
54 68 69 73 20 69 73 20 6a 75 73 74 20 61 20 70 72 69 6e 74
69 6e 67 20 74 65 73 74 00 00 00 00 00 00 00 00 00 00 00 00
So you print that char array. And then you want a new message. Let's say just "Hello"
48 65 6c 6c 6f 00 73 20 6a 75 73 74 20 61 20 70 72 69 6e 74
69 6e 67 20 74 65 73 74 00 00 00 00 00 00 00 00 00 00 00 00
Notice the 00 on str[5]. That's how the print function will know how much it actually needs to send, despite the actual longitude of the vector and the whole content.
or use the AdjustToUniversal DateTimeStyle in a call to
DateTime.ParseExact(String, String[], IFormatProvider, DateTimeStyles)
check Your App Id is Push Enabled or not on developer.apple.com in iOS Provisioning Portal If Not then Enabled it,configure Your Push SSL Certificate for your App Id Download it, and Reinstall in Your Keychain Once again then Download Your Distrubution Profile install in your Xcode Liabrary
In Python 3.5 or later, using pathlib you can copy text file contents into a variable and close the file in one line:
from pathlib import Path
txt = Path('data.txt').read_text()
and then you can use str.replace to remove the newlines:
txt = txt.replace('\n', '')
In the first case, the data are passed to the script via GET, in the second via POST.
http://docs.jquery.com/Ajax/load#urldatacallback
I don't think there are limits to the data size, but the completition of the remote call will of course take longer with great amount of data.
Simply put you can't do the following:
class C(object):
def x(self, y, **kwargs):
# Which y to use, kwargs or declaration?
pass
c = C()
y = "Arbitrary value"
kwargs["y"] = "Arbitrary value"
c.x(y, **kwargs) # FAILS
Because you pass the variable 'y' into the function twice: once as kwargs and once as function declaration.
I used:
var save_and_add = function(){
tinyMCE.triggerSave();
$('.new_multi_text_block_item').submit();
};
This is all you need to do.
In the PHP version you can send 'true' in the last parameter, but the default is 'false'. The following algorithm is equivalent to the default PHP's hash function when passing 'sha256' as the first parameter:
public static string GetSha256FromString(string strData)
{
var message = Encoding.ASCII.GetBytes(strData);
SHA256Managed hashString = new SHA256Managed();
string hex = "";
var hashValue = hashString.ComputeHash(message);
foreach (byte x in hashValue)
{
hex += String.Format("{0:x2}", x);
}
return hex;
}
You could use this function:
function RefreshTable(tableId, urlData)
{
//Retrieve the new data with $.getJSON. You could use it ajax too
$.getJSON(urlData, null, function( json )
{
table = $(tableId).dataTable();
oSettings = table.fnSettings();
table.fnClearTable(this);
for (var i=0; i<json.aaData.length; i++)
{
table.oApi._fnAddData(oSettings, json.aaData[i]);
}
oSettings.aiDisplay = oSettings.aiDisplayMaster.slice();
table.fnDraw();
});
}
Dont' forget to call it after your delete function has succeded.
Check if the package name in the class matches the package name in the manifest file. This worked for me
Try adding the profile
attribute to your head
tag and use "image/x-icon"
for the type
attribute:
<head profile="http://www.w3.org/2005/10/profile">
<link rel="icon" type="image/x-icon" href="img/favicon.ico">
If the above code doesn't work, try using the full icon path for the href
attribute:
<head profile="http://www.w3.org/2005/10/profile">
<link rel="icon" type="image/x-icon" href="http://example.com/img/favicon.ico">
An identifying relationship is when the existence of a row in a child table depends on a row in a parent table. This may be confusing because it's common practice these days to create a pseudokey for a child table, but not make the foreign key to the parent part of the child's primary key. Formally, the "right" way to do this is to make the foreign key part of the child's primary key. But the logical relationship is that the child cannot exist without the parent.
Example: A Person
has one or more phone numbers. If they had just one phone number, we could simply store it in a column of Person
. Since we want to support multiple phone numbers, we make a second table PhoneNumbers
, whose primary key includes the person_id
referencing the Person
table.
We may think of the phone number(s) as belonging to a person, even though they are modeled as attributes of a separate table. This is a strong clue that this is an identifying relationship (even if we don't literally include person_id
in the primary key of PhoneNumbers
).
A non-identifying relationship is when the primary key attributes of the parent must not become primary key attributes of the child. A good example of this is a lookup table, such as a foreign key on Person.state
referencing the primary key of States.state
. Person
is a child table with respect to States
. But a row in Person
is not identified by its state
attribute. I.e. state
is not part of the primary key of Person
.
A non-identifying relationship can be optional or mandatory, which means the foreign key column allows NULL or disallows NULL, respectively.
See also my answer to Still Confused About Identifying vs. Non-Identifying Relationships
Very often this is done in a while
loop:
$types = array();
while(($row = mysql_fetch_assoc($result))) {
$types[] = $row['type'];
}
Have a look at the examples in the documentation.
The mysql_fetch_*
methods will always get the next element of the result set:
Returns an array of strings that corresponds to the fetched row, or FALSE if there are no more rows.
That is why the while
loops works. If there aren't any rows anymore $row
will be false
and the while
loop exists.
It only seems that mysql_fetch_array
gets more than one row, because by default it gets the result as normal and as associative value:
By using MYSQL_BOTH (default), you'll get an array with both associative and number indices.
Your example shows it best, you get the same value 18
and you can access it via $v[0]
or $v['type']
.
when you perform y=x()
you are actually assigning y to the result of calling the function object x
and the function has a return value of None
. Function calls in python are performed using ()
. To assign x to y
so you can call y
just like you would x
you assign the function object x to y like y=x
and call the function using y()
It is hard to figure out exactly what you are trying to do from the question. I'll take a guess and say that you want to add an extra compile task in addition to those provided out of the box by the java plugin.
The easiest way to do this is probably to specify a new sourceSet
called 'speedTest'. This will generate a configuration
called 'speedTest' which you can use to specify your dependencies within a dependencies
block. It will also generate a task called compileSpeedTestJava
for you.
For an example, take a look at defining new source sets in the Java plugin documentation
In general it seems that you have some incorrect assumptions about how dependency management works with Gradle. I would echo the advice of the others to read the 'Dependency Management' chapters of the user guide again :)
I follow this tutorial's instructions for installation
How to Install MongoDB on Ubuntu 16.04
I had the same mistake. Finally, I found out that I needed to set the port number
The default port number for the mongo command is 27017
But the default port number in mongo.conf is 29999
The benefit is that the output of previous function is used. You do not need to repeat where the data source comes from, for example.
I put the \let\cleardoublepage\clearpage
before \makeindex
. Else, your content page will display page number based on the page number before you clear the blank page.
You use an anchor and a hash. For example:
Target of the Link:
<a name="name_of_target">Content</a>
Link to the Target:
<a href="#name_of_target">Link Text</a>
Or, if linking from a different page:
<a href="http://path/to/page/#name_of_target">Link Text</a>
If you're using rails you can also use in_groups_of:
foo.in_groups_of(3)
import requests
image_file_descriptor = open('test.jpg', 'rb')
# Requests makes it simple to upload Multipart-encoded files
files = {'media': image_file_descriptor}
url = '...'
requests.post(url, files=files)
image_file_descriptor.close()
Don't forget to close the descriptor, it prevents bugs: Is explicitly closing files important?
type="text/javascript"
This attribute is optional. Since Netscape 2, the default programming language in all browsers has been JavaScript. In XHTML, this attribute is required and unnecessary. In HTML, it is better to leave it out. The browser knows what to do.
In HTML 4.01 and XHTML 1(.1), the type
attribute for <script>
elements is required.
Create a simple hash function and some linked lists of structures , depending on the hash , assign which linked list to insert the value in . Use the hash for retrieving it as well .
I did a simple implementation some time back :
... #define K 16 // chaining coefficient struct dict { char *name; /* name of key */ int val; /* value */ struct dict *next; /* link field */ }; typedef struct dict dict; dict *table[K]; int initialized = 0; void putval ( char *,int); void init_dict() { initialized = 1; int i; for(i=0;iname = (char *) malloc (strlen(key_name)+1); ptr->val = sval; strcpy (ptr->name,key_name); ptr->next = (struct dict *)table[hsh]; table[hsh] = ptr; } int getval ( char *key_name ) { int hsh = hash(key_name); dict *ptr; for (ptr = table[hsh]; ptr != (dict *) 0; ptr = (dict *)ptr->next) if (strcmp (ptr->name,key_name) == 0) return ptr->val; return -1; }
UPDATED: assuming C# 6, the chances are that your case can be expressed as an exception filter. This is the ideal approach from a performance perspective assuming your requirement can be expressed in terms of it, e.g.:
try
{
}
catch ( Web2PDFException ex ) when ( ex.Code == 52 )
{
}
Assuming C# < 6, the most efficient is to catch a specific Exception
type and do handling based on that. Any catch-all handling can be done separately
try
{
}
catch ( Web2PDFException ex )
{
}
or
try
{
}
catch ( Web2PDFException ex )
{
}
catch ( Exception ex )
{
}
or (if you need to write a general handler - which is generally a bad idea, but if you're sure it's best for you, you're sure):
if( err is Web2PDFException)
{
}
or (in certain cases if you need to do some more complex type hierarchy stuff that cant be expressed with is
)
if( err.GetType().IsAssignableFrom(typeof(Web2PDFException)))
{
}
or switch to VB.NET or F# and use is
or Type.IsAssignableFrom
in Exception Filters
Use the hex code for a non-breaking space. Something like this:
.breadcrumbs a:before {
content: '>\00a0';
}
we use Row or Column, Expanded, Container and the element to use example RaisedButton
body: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.start,
children: <Widget>[
Padding(
padding: const EdgeInsets.symmetric(vertical: 10.0),
),
Row(
children: <Widget>[
Expanded(
flex: 2, // we define the width of the button
child: Container(
// height: 50, we define the height of the button
child: Padding(
padding: const EdgeInsets.symmetric(horizontal: 10.0),
child: RaisedButton(
materialTapTargetSize: MaterialTapTargetSize.shrinkWrap,
textColor: Colors.white,
color: Colors.blue,
onPressed: () {
// Method to execute
},
child: Text('Copy'),
),
),
),
),
Expanded(
flex: 2, // we define the width of the button
child: Container(
// height: 50, we define the height of the button
child: Padding(
padding: const EdgeInsets.symmetric(horizontal: 10.0),
child: RaisedButton(
materialTapTargetSize: MaterialTapTargetSize.shrinkWrap,
textColor: Colors.white,
color: Colors.green,
onPressed: () {
// Method to execute
},
child: Text('Paste'),
),
),
),
),
],
),
],
),
),
You will need a custom class loader for this, have a look at One Jar.
One-JAR lets you package a Java application together with its dependency Jars into a single executable Jar file.
It has an ant task which can simplify the building of it as well.
REFERENCE (from background)
Most developers reasonably assume that putting a dependency Jar file into their own Jar file, and adding a Class-Path attribute to the META-INF/MANIFEST will do the trick:
jarname.jar
| /META-INF
| | MANIFEST.MF
| | Main-Class: com.mydomain.mypackage.Main
| | Class-Path: commons-logging.jar
| /com/mydomain/mypackage
| | Main.class
| commons-logging.jar
Unfortunately this is does not work. The Java
Launcher$AppClassLoader
does not know how to load classes from a Jar inside a Jar with this kind ofClass-Path
. Trying to usejar:file:jarname.jar!/commons-logging.jar
also leads down a dead-end. This approach will only work if you install (i.e. scatter) the supporting Jar files into the directory where the jarname.jar file is installed.
# script.py
current_file = os.path.abspath(os.path.dirname(__file__)) #older/folder2/scripts_folder
#csv_filename
csv_filename = os.path.join(current_file, '../data_folder/data.csv')
A common solution to this problem uses absolute positioning or cropped floats, but these are tricky in that they require extensive tuning if your columns change in number+size, and that you need to make sure your "main" column is always the longest. Instead, I'd suggest you use one of three more robust solutions:
display: flex
: by far the simplest & best solution and very flexible - but unsupported by IE9 and older.table
or display: table
: very simple, very compatible (pretty much every browser ever), quite flexible.display: inline-block; width:50%
with a negative margin hack: quite simple, but column-bottom borders are a little tricky.display:flex
This is really simple, and it's easy to adapt to more complex or more detailed layouts - but flexbox is only supported by IE10 or later (in addition to other modern browsers).
Example: http://output.jsbin.com/hetunujuma/1
Relevant html:
<div class="parent"><div>column 1</div><div>column 2</div></div>
Relevant css:
.parent { display: -ms-flex; display: -webkit-flex; display: flex; }
.parent>div { flex:1; }
Flexbox has support for a lot more options, but to simply have any number of columns the above suffices!
<table>
or display: table
A simple & extremely compatible way to do this is to use a table
- I'd recommend you try that first if you need old-IE support. You're dealing with columns; divs + floats simply aren't the best way to do that (not to mention the fact that multiple levels of nested divs just to hack around css limitations is hardly more "semantic" than just using a simple table). If you do not wish to use the table
element, consider css display: table
(unsupported by IE7 and older).
Example: http://jsfiddle.net/emn13/7FFp3/
Relevant html: (but consider using a plain <table>
instead)
<div class="parent"><div>column 1</div><div>column 2</div></div>
Relevant css:
.parent { display: table; }
.parent > div {display: table-cell; width:50%; }
/*omit width:50% for auto-scaled column widths*/
This approach is far more robust than using overflow:hidden
with floats. You can add pretty much any number of columns; you can have them auto-scale if you want; and you retain compatibility with ancient browsers. Unlike the float solution requires, you also don't need to know beforehand which column is longest; the height scales just fine.
KISS: don't use float hacks unless you specifically need to. If IE7 is an issue, I'd still pick a plain table with semantic columns over a hard-to-maintain, less flexible trick-CSS solution any day.
By the way, if you need your layout to be responsive (e.g. no columns on small mobile phones) you can use a @media
query to fall back to plain block layout for small screen widths - this works whether you use <table>
or any other display: table
element.
display:inline block
with a negative margin hack.Another alternative is to use display:inline block
.
Example: http://jsbin.com/ovuqes/2/edit
Relevant html: (the absence of spaces between the div
tags is significant!)
<div class="parent"><div><div>column 1</div></div><div><div>column 2</div></div></div>
Relevant css:
.parent {
position: relative; width: 100%; white-space: nowrap; overflow: hidden;
}
.parent>div {
display:inline-block; width:50%; white-space:normal; vertical-align:top;
}
.parent>div>div {
padding-bottom: 32768px; margin-bottom: -32768px;
}
This is slightly tricky, and the negative margin means that the "true" bottom of the columns is obscured. This in turn means you can't position anything relative to the bottom of those columns because that's cut off by overflow: hidden
. Note that in addition to inline-blocks, you can achieve a similar effect with floats.
TL;DR: use flexbox if you can ignore IE9 and older; otherwise try a (css) table. If neither of those options work for you, there are negative margin hacks, but these can cause weird display issues that are easy to miss during development, and there are layout limitations you need to be aware of.
How about Ubuntu's alert. It can be used after any operation to alert it finished and even show red cross icon if operaton was finnished with errors
ls -la; alert
If one would like to do this systematically for all external links, CSS is no option. However, one could run the following sed
command once the (X)HTML has been created from Markdown:
sed -i 's|href="http|target="_blank" href="http|g' index.html
This can be further automated by adding above sed
command to a makefile
. For details, see GNU make
or see how I have done that on my website.
When you call startActivity
on the last activity you could always use
Intent.FLAG_ACTIVITY_CLEAR_TOP
as a flag on that intent.
Read more about the flag here.
Pattern pattern = Pattern.compile("^[a-zA-Z0-9]*$");
Matcher matcher = pattern.matcher("Teststring123");
if(matcher.matches()) {
// yay! alphanumeric!
}
TL;DR
Error #1064 means that MySQL can't understand your command. To fix it:
Read the error message. It tells you exactly where in your command MySQL got confused.
Examine your command. If you use a programming language to create your command, use
echo
,console.log()
, or its equivalent to show the entire command so you can see it.Check the manual. By comparing against what MySQL expected at that point, the problem is often obvious.
Check for reserved words. If the error occurred on an object identifier, check that it isn't a reserved word (and, if it is, ensure that it's properly quoted).
Error messages may look like gobbledygook, but they're (often) incredibly informative and provide sufficient detail to pinpoint what went wrong. By understanding exactly what MySQL is telling you, you can arm yourself to fix any problem of this sort in the future.
As in many programs, MySQL errors are coded according to the type of problem that occurred. Error #1064 is a syntax error.
Whilst "syntax" is a word that many programmers only encounter in the context of computers, it is in fact borrowed from wider linguistics. It refers to sentence structure: i.e. the rules of grammar; or, in other words, the rules that define what constitutes a valid sentence within the language.
For example, the following English sentence contains a syntax error (because the indefinite article "a" must always precede a noun):
This sentence contains syntax error a.
Whenever one issues a command to a computer, one of the very first things that it must do is "parse" that command in order to make sense of it. A "syntax error" means that the parser is unable to understand what is being asked because it does not constitute a valid command within the language: in other words, the command violates the grammar of the programming language.
It's important to note that the computer must understand the command before it can do anything with it. Because there is a syntax error, MySQL has no idea what one is after and therefore gives up before it even looks at the database and therefore the schema or table contents are not relevant.
Obviously, one needs to determine how it is that the command violates MySQL's grammar. This may sound pretty impenetrable, but MySQL is trying really hard to help us here. All we need to do is…
MySQL not only tells us exactly where the parser encountered the syntax error, but also makes a suggestion for fixing it. For example, consider the following SQL command:
UPDATE my_table WHERE id=101 SET name='foo'
That command yields the following error message:
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'WHERE id=101 SET name='foo'' at line 1
MySQL is telling us that everything seemed fine up to the word WHERE
, but then a problem was encountered. In other words, it wasn't expecting to encounter WHERE
at that point.
Messages that say ...near '' at line...
simply mean that the end of command was encountered unexpectedly: that is, something else should appear before the command ends.
Programmers often create SQL commands using a programming language. For example a php program might have a (wrong) line like this:
$result = $mysqli->query("UPDATE " . $tablename ."SET name='foo' WHERE id=101");
If you write this this in two lines
$query = "UPDATE " . $tablename ."SET name='foo' WHERE id=101"
$result = $mysqli->query($query);
then you can add echo $query;
or var_dump($query)
to see that the query actually says
UPDATE userSET name='foo' WHERE id=101
Often you'll see your error immediately and be able to fix it.
MySQL is also recommending that we "check the manual that corresponds to our MySQL version for the right syntax to use". Let's do that.
I'm using MySQL v5.6, so I'll turn to that version's manual entry for an UPDATE
command. The very first thing on the page is the command's grammar (this is true for every command):
UPDATE [LOW_PRIORITY] [IGNORE] table_reference
SET col_name1={expr1|DEFAULT} [, col_name2={expr2|DEFAULT}] ...
[WHERE where_condition]
[ORDER BY ...]
[LIMIT row_count]
The manual explains how to interpret this syntax under Typographical and Syntax Conventions, but for our purposes it's enough to recognise that: clauses contained within square brackets [
and ]
are optional; vertical bars |
indicate alternatives; and ellipses ...
denote either an omission for brevity, or that the preceding clause may be repeated.
We already know that the parser believed everything in our command was okay prior to the WHERE
keyword, or in other words up to and including the table reference. Looking at the grammar, we see that table_reference
must be followed by the SET
keyword: whereas in our command it was actually followed by the WHERE
keyword. This explains why the parser reports that a problem was encountered at that point.
Of course, this was a simple example. However, by following the two steps outlined above (i.e. observing exactly where in the command the parser found the grammar to be violated and comparing against the manual's description of what was expected at that point), virtually every syntax error can be readily identified.
I say "virtually all", because there's a small class of problems that aren't quite so easy to spot—and that is where the parser believes that the language element encountered means one thing whereas you intend it to mean another. Take the following example:
UPDATE my_table SET where='foo'
Again, the parser does not expect to encounter WHERE
at this point and so will raise a similar syntax error—but you hadn't intended for that where
to be an SQL keyword: you had intended for it to identify a column for updating! However, as documented under Schema Object Names:
If an identifier contains special characters or is a reserved word, you must quote it whenever you refer to it. (Exception: A reserved word that follows a period in a qualified name must be an identifier, so it need not be quoted.) Reserved words are listed at Section 9.3, “Keywords and Reserved Words”.
[ deletia ]The identifier quote character is the backtick (“
`
”):mysql> SELECT * FROM `select` WHERE `select`.id > 100;
If the
ANSI_QUOTES
SQL mode is enabled, it is also permissible to quote identifiers within double quotation marks:mysql> CREATE TABLE "test" (col INT); ERROR 1064: You have an error in your SQL syntax... mysql> SET sql_mode='ANSI_QUOTES'; mysql> CREATE TABLE "test" (col INT); Query OK, 0 rows affected (0.00 sec)
You should create a new project in Code::Blocks, and make sure it's 'Console Application'.
Add your .cpp files into the project so they are all compiled and linked together.
You can use TEXT
like this as part of a concatenation
=TEXT(A1,"dd-mmm-yy") & " other string"
The Android API already provides a method to achieve that. Try this:
Rect offsetViewBounds = new Rect();
//returns the visible bounds
childView.getDrawingRect(offsetViewBounds);
// calculates the relative coordinates to the parent
parentViewGroup.offsetDescendantRectToMyCoords(childView, offsetViewBounds);
int relativeTop = offsetViewBounds.top;
int relativeLeft = offsetViewBounds.left;
Here is the doc
Thanks guys, I used a combination of both your answers @Christian and @Jonathan for my specific need.
"http://" + Request.ServerVariables["SERVER_NAME"] + Request.RawUrl.ToString()
I don't need to worry about secure http, needed the servername variable and the RawUrl handles the path from the domain name and includes the querystring if present.
My assumption you already have settings on your urls.py
from django.urls import path, include
# and probably something like this
urlpatterns = [
path('admin/', admin.site.urls),
path('', include('blog.urls')),
]
and on your app you should have something like this blog/urls.py
from django.urls import path
from .views import HomePageView, CreateBlogView
urlpatterns = [
path('', HomePageView.as_view(), name='home'),
path('post/', CreateBlogView.as_view(), name='add_blog')
]
if it's the case then most likely you haven't activated your environment
try the following to activate your environment first pipenv shell
if you still get the same error try this methods below
make sure Django is installed?? any another packages? i.e pillow try the following
pipenv install django==2.1.5 pillow==5.4.1
then remember to activate your environment
pipenv shell
after the environment is activated try running
python3 manage.py makemigrations
python3 manage.py migrate
then you will need to run
python3 manage.py runserver
I hope this helps
Just use android:focusableInTouchMode="false"
on your webView.
or
function zpad(n,l){
return rep(l-n.toString().length, '0') + n.toString();
}
with
function rep(len, chr) {
return new Array(len+1).join(chr);
}
I faced similar issue "CrashLoopBackOff" when I debugged getting pods and logs of pod. Found out that my command arguments are wrong
The Material icons use the Material icon font, and the font needs to be included with the page.
Here's the CDN from Google Web Fonts:
<link rel="stylesheet" href="https://fonts.googleapis.com/icon?family=Material+Icons">
This comes from the official site of Chome-devtools and it helps. Here i quote:
- Queuing If a request is queued it indicated that:
- The request was postponed by the rendering engine because it's considered lower priority than critical resources (such as scripts/styles). This often happens with images.
- The request was put on hold to wait for an unavailable TCP socket that's about to free up.
- The request was put on hold because the browser only allows six TCP connections per origin on HTTP 1. Time spent making disk cache entries (typically very quick.)
- Stalled/Blocking Time the request spent waiting before it could be sent. It can be waiting for any of the reasons described for Queueing. Additionally, this time is inclusive of any time spent in proxy negotiation.
Building Matplotlib requires libpng
(and freetype
, as well) which isn't a python library, so pip
doesn't handle installing it (or freetype
).
You'll need to install something along the lines of libpng-devel
and freetype-devel
(or whatever the equivalent is for your OS).
See the building requirements/instructions for matplotlib.
I just want to add with @Noby Fujioka's response, Edge will not support following
window.open("data:application/pdf," + encodeURI(pdfString));
For Edge we need to convert it to blob and this is something like following
//If Browser is Edge
if (window.navigator && window.navigator.msSaveOrOpenBlob) {
var byteCharacters = atob(<Your_base64_Report Data>);
var byteNumbers = new Array(byteCharacters.length);
for (var i = 0; i < byteCharacters.length; i++) {
byteNumbers[i] = byteCharacters.charCodeAt(i);
}
var byteArray = new Uint8Array(byteNumbers);
var blob = new Blob([byteArray], {
type: 'application/pdf'
});
window.navigator.msSaveOrOpenBlob(blob, "myreport.pdf");
} else {
var pdfWindow = window.open("", '_blank');
pdfWindow.document.write("<iframe width='100%' style='margin: -8px;border: none;' height='100%' src='data:application/pdf;base64, " + encodeURI(<Your_base64_Report Data>) + "'></iframe>");
}
As others have mentioned in this and other similar threads, the best way to avoid this problem is to use RGBA/HSLA or else use a transparent PNG.
But, if you want a ridiculous solution, similar to the one linked in another answer in this thread (which is also my website), here's a brand new script I wrote that fixes this problem automatically, called thatsNotYoChild.js:
http://www.impressivewebs.com/fixing-parent-child-opacity/
Basically it uses JavaScript to remove all children from the parent div, then reposition the child elements back to where they should be without actually being children of that element anymore.
To me, this should be a last resort, but I thought it would be fun to write something that did this, if anyone wants to do this.
Note my use of
t.format
comes from using Moment.js, it is not part of JavaScript's standardDate
prototype.
A Unix timestamp is the number of seconds since 1970-01-01 00:00:00 UTC.
The presence of the +0200
means the numeric string is not a Unix timestamp as it contains timezone adjustment information. You need to handle that separately.
If your timestamp string is in milliseconds, then you can use the milliseconds constructor and Moment.js to format the date into a string:
var t = new Date( 1370001284000 );
var formatted = t.format("dd.mm.yyyy hh:MM:ss");
If your timestamp string is in seconds, then use setSeconds
:
var t = new Date();
t.setSeconds( 1370001284 );
var formatted = t.format("dd.mm.yyyy hh:MM:ss");
Just remove gesture recognizer from NavigationController. Work in iOS 8.
if ([self.navigationController respondsToSelector:@selector(interactivePopGestureRecognizer)])
[self.navigationController.view removeGestureRecognizer:self.navigationController.interactivePopGestureRecognizer];
As Andrie said, system.time()
works fine. For short function I prefer to put replicate()
in it:
system.time( replicate(10000, myfunction(with,arguments) ) )
You can't use an aggregate directly in a WHERE clause; that's what HAVING clauses are for.
You can use a sub-query which contains an aggregate in the WHERE clause.
you can use unique property by using len function
len(df['hID'].unique()) 5
In order to check if an object is compatible with a given type variable, instead of writing
u is t
you should write
typeof(t).IsInstanceOfType(u)
For an earlier version of junit, you can do
Class<Map<String, String>> mapClass = (Class) Map.class;
ArgumentCaptor<Map<String, String>> mapCaptor = ArgumentCaptor.forClass(mapClass);
try $conn = mysql_connect("localhost", "root")
or $conn = mysql_connect("localhost", "root", "")
Make sure that your package is installed in your $GOPATH
directory or already inside your workspace/package.
For example: if your $GOPATH = "c:\go"
, make sure that the package inside C:\Go\src\pkgName
The fcntl module is just used for locking the pinning file, so assuming you don't try multiple access, this can be an acceptable workaround. Place this module in your sys.path
, and it should just work as the official fcntl module.
Try using this module for development/testing purposes only in windows.
def fcntl(fd, op, arg=0):
return 0
def ioctl(fd, op, arg=0, mutable_flag=True):
if mutable_flag:
return 0
else:
return ""
def flock(fd, op):
return
def lockf(fd, operation, length=0, start=0, whence=0):
return
In addition to the answer given by @Marcus you can now also delete a remote branch via:
git push [remote-name] --delete [branch-name]
Angular has a built-in filter
for showing JSON
<pre>{{data | json}}</pre>
Note the use of the pre
-tag to conserve whitespace and linebreaks
Demo:
angular.module('app', [])_x000D_
.controller('Ctrl', ['$scope',_x000D_
function($scope) {_x000D_
_x000D_
$scope.data = {_x000D_
a: 1,_x000D_
b: 2,_x000D_
c: {_x000D_
d: "3"_x000D_
},_x000D_
};_x000D_
_x000D_
}_x000D_
]);
_x000D_
<!DOCTYPE html>_x000D_
<html ng-app="app">_x000D_
_x000D_
<head>_x000D_
<script data-require="[email protected]" data-semver="1.2.15" src="//code.angularjs.org/1.2.15/angular.js"></script>_x000D_
</head>_x000D_
_x000D_
<body ng-controller="Ctrl">_x000D_
<pre>{{data | json}}</pre>_x000D_
</body>_x000D_
_x000D_
</html>
_x000D_
There's also an angular.toJson
method, but I haven't played around with that (Docs)
From the documentation:
You cannot use ORDER BY or LIMIT in a multiple-table DELETE.
For IBM DB2 :
SELECT TYPENAME FROM SYSCAT.COLUMNS WHERE TABSCHEMA='your_schema_name' AND TABNAME='your_table_name' AND COLNAME='your_column_name'
The command pm clear com.android.browser
requires root permission.
So, run su
first.
Here is the sample code:
private static final String CHARSET_NAME = "UTF-8";
String cmd = "pm clear com.android.browser";
ProcessBuilder pb = new ProcessBuilder().redirectErrorStream(true).command("su");
Process p = pb.start();
// We must handle the result stream in another Thread first
StreamReader stdoutReader = new StreamReader(p.getInputStream(), CHARSET_NAME);
stdoutReader.start();
out = p.getOutputStream();
out.write((cmd + "\n").getBytes(CHARSET_NAME));
out.write(("exit" + "\n").getBytes(CHARSET_NAME));
out.flush();
p.waitFor();
String result = stdoutReader.getResult();
The class StreamReader
:
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.concurrent.CountDownLatch;
class StreamReader extends Thread {
private InputStream is;
private StringBuffer mBuffer;
private String mCharset;
private CountDownLatch mCountDownLatch;
StreamReader(InputStream is, String charset) {
this.is = is;
mCharset = charset;
mBuffer = new StringBuffer("");
mCountDownLatch = new CountDownLatch(1);
}
String getResult() {
try {
mCountDownLatch.await();
} catch (InterruptedException e) {
e.printStackTrace();
}
return mBuffer.toString();
}
@Override
public void run() {
InputStreamReader isr = null;
try {
isr = new InputStreamReader(is, mCharset);
int c = -1;
while ((c = isr.read()) != -1) {
mBuffer.append((char) c);
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (isr != null)
isr.close();
} catch (IOException e) {
e.printStackTrace();
}
mCountDownLatch.countDown();
}
}
}
using numpy :
In [1]: import numpy as np
In [2]: nums = np.array([1,2,3])*2
In [3]: nums.tolist()
Out[4]: [2, 4, 6]
Currying is a transformation that can be applied to functions to allow them to take one less argument than previously.
For example, in F# you can define a function thus:-
let f x y z = x + y + z
Here function f takes parameters x, y and z and sums them together so:-
f 1 2 3
Returns 6.
From our definition we can can therefore define the curry function for f:-
let curry f = fun x -> f x
Where 'fun x -> f x' is a lambda function equivilent to x => f(x) in C#. This function inputs the function you wish to curry and returns a function which takes a single argument and returns the specified function with the first argument set to the input argument.
Using our previous example we can obtain a curry of f thus:-
let curryf = curry f
We can then do the following:-
let f1 = curryf 1
Which provides us with a function f1 which is equivilent to f1 y z = 1 + y + z. This means we can do the following:-
f1 2 3
Which returns 6.
This process is often confused with 'partial function application' which can be defined thus:-
let papply f x = f x
Though we can extend it to more than one parameter, i.e.:-
let papply2 f x y = f x y
let papply3 f x y z = f x y z
etc.
A partial application will take the function and parameter(s) and return a function that requires one or more less parameters, and as the previous two examples show is implemented directly in the standard F# function definition so we could achieve the previous result thus:-
let f1 = f 1
f1 2 3
Which will return a result of 6.
In conclusion:-
The difference between currying and partial function application is that:-
Currying takes a function and provides a new function accepting a single argument, and returning the specified function with its first argument set to that argument. This allows us to represent functions with multiple parameters as a series of single argument functions. Example:-
let f x y z = x + y + z
let curryf = curry f
let f1 = curryf 1
let f2 = curryf 2
f1 2 3
6
f2 1 3
6
Partial function application is more direct - it takes a function and one or more arguments and returns a function with the first n arguments set to the n arguments specified. Example:-
let f x y z = x + y + z
let f1 = f 1
let f2 = f 2
f1 2 3
6
f2 1 3
6
If you put something like this in your .ssh/config
:
Host githost
HostName git.host.de
Port 4019
User root
then you should be able to use the basic syntax:
git push githost:/var/cache/git/project.git master
It really really does make the flow of a sequence with several lookups and optionals much more concise and clear and reduces lots of if nesting. See Erica Sadun post on replacing Ifs. .... Could get carried away, an example below:
let filteredLinks = locationsLinkedToList.filter({$0.actionVerb == movementCommand})
guard let foundLink = filteredLinks.first else {return ("<Person> cannot go in that direction.", nil, nil)}
guard filteredLinks.count == 1 else {return ("<Person> cannot decide which route to take.", nil, nil)}
guard let nextLocation = foundLink.toLocation else {return ("<Person> cannot go in that direction.", nil, nil)}
See if that sticks.
Sometimes two classes may have some parameter names in common. In that case, you can't pop the key-value pairs off of **kwargs
or remove them from *args
. Instead, you can define a Base
class which unlike object
, absorbs/ignores arguments:
class Base(object):
def __init__(self, *args, **kwargs): pass
class A(Base):
def __init__(self, *args, **kwargs):
print "A"
super(A, self).__init__(*args, **kwargs)
class B(Base):
def __init__(self, *args, **kwargs):
print "B"
super(B, self).__init__(*args, **kwargs)
class C(A):
def __init__(self, arg, *args, **kwargs):
print "C","arg=",arg
super(C, self).__init__(arg, *args, **kwargs)
class D(B):
def __init__(self, arg, *args, **kwargs):
print "D", "arg=",arg
super(D, self).__init__(arg, *args, **kwargs)
class E(C,D):
def __init__(self, arg, *args, **kwargs):
print "E", "arg=",arg
super(E, self).__init__(arg, *args, **kwargs)
print "MRO:", [x.__name__ for x in E.__mro__]
E(10)
yields
MRO: ['E', 'C', 'A', 'D', 'B', 'Base', 'object']
E arg= 10
C arg= 10
A
D arg= 10
B
Note that for this to work, Base
must be the penultimate class in the MRO.
If you are using java technology(Servlet/JSP) for making web application you will probably use Apache Tomcat. However, if you are using other technologies like Perl, PHP or ruby, its better(easier) to use Apache HTTP Server.
First of all, install the prerequisite libraries:
sudo apt-get update
sudo apt-get install git-core curl zlib1g-dev build-essential libssl-dev libreadline-dev libyaml-dev libsqlite3-dev sqlite3 libxml2-dev libxslt1-dev libcurl4-openssl-dev python-software-properties libffi-dev
Then install rbenv, which is used to install Ruby:
cd
git clone https://github.com/rbenv/rbenv.git ~/.rbenv
echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bashrc
echo 'eval "$(rbenv init -)"' >> ~/.bashrc
exec $SHELL
git clone https://github.com/rbenv/ruby-build.git ~/.rbenv/plugins/ruby-build
echo 'export PATH="$HOME/.rbenv/plugins/ruby-build/bin:$PATH"' >> ~/.bashrc
exec $SHELL
rbenv install 2.3.1
rbenv global 2.3.1
ruby -v
Then (optional) tell Rubygems to not install local documentation:
echo "gem: --no-ri --no-rdoc" > ~/.gemrc
Credits: https://gorails.com/setup/ubuntu/14.10
Warning!!!
There are issues with Gnome-Shell
. See comment below.
That error message generally means there are other processes connected to the DB. Try running this to see which are connected:
exec sp_who
That will return you the process and then you should be able to run:
kill [XXX]
Where [xxx] is the spid
of the process you're trying to kill.
Then you can run your above statement.
Good luck.
By using getText():
Button mButton;
EditText mEdit;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mButton = (Button)findViewById(R.id.button);
mEdit = (EditText)findViewById(R.id.edittext);
mButton.setOnClickListener(
new View.OnClickListener()
{
public void onClick(View view)
{
Log.v("EditText", mEdit.getText().toString());
}
});
}
It doesn't - the C# compiler does :)
So this code:
string x = "hello";
string y = "there";
string z = "chaps";
string all = x + y + z;
actually gets compiled as:
string x = "hello";
string y = "there";
string z = "chaps";
string all = string.Concat(x, y, z);
(Gah - intervening edit removed other bits accidentally.)
The benefit of the C# compiler noticing that there are multiple string concatenations here is that you don't end up creating an intermediate string of x + y
which then needs to be copied again as part of the concatenation of (x + y)
and z
. Instead, we get it all done in one go.
EDIT: Note that the compiler can't do anything if you concatenate in a loop. For example, this code:
string x = "";
foreach (string y in strings)
{
x += y;
}
just ends up as equivalent to:
string x = "";
foreach (string y in strings)
{
x = string.Concat(x, y);
}
... so this does generate a lot of garbage, and it's why you should use a StringBuilder
for such cases. I have an article going into more details about the two which will hopefully answer further questions.
Here you can find every thing you need:
http://web.eecs.umich.edu/~sugih/courses/eecs487/glut-howto/#win
use fs?path module can got the folder. this use Promise. If your will get the fill, your can change isDirectory() to isFile() Nodejs--fs--fs.Stats.At last, you can get the file'name file'extname and so on Nodejs---Path
var fs = require("fs"),
path = require("path");
//your <MyFolder> path
var p = "MyFolder"
fs.readdir(p, function (err, files) {
if (err) {
throw err;
}
//this can get all folder and file under <MyFolder>
files.map(function (file) {
//return file or folder path, such as **MyFolder/SomeFile.txt**
return path.join(p, file);
}).filter(function (file) {
//use sync judge method. The file will add next files array if the file is directory, or not.
return fs.statSync(file).isDirectory();
}).forEach(function (files) {
//The files is array, so each. files is the folder name. can handle the folder.
console.log("%s", files);
});
});
While we submit spark jobs using spark-submit utility, there is an option --jars
. Using this option, we can pass jar file to spark applications.
In java, there are two types of parameters, implicit parameters and explicit parameters. Explicit parameters are the arguments passed into a method. The implicit parameter of a method is the instance that the method is called from. Arguments are simply one of the two types of parameters.
You didn't typed the closingtag from the div with id="infohold.
To change or remove the passphrase, I often find it simplest to pass in only the p
and f
flags, then let the system prompt me to supply the passphrases:
ssh-keygen -p -f <name-of-private-key>
For instance:
ssh-keygen -p -f id_rsa
Enter an empty password if you want to remove the passphrase.
A sample run to remove or change a password looks something like this:
ssh-keygen -p -f id_rsa
Enter old passphrase:
Key has comment 'bcuser@pl1909'
Enter new passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved with the new passphrase.
When adding a passphrase to a key that has no passphrase, the run looks something like this:
ssh-keygen -p -f id_rsa
Key has comment 'charlie@elf-path'
Enter new passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved with the new passphrase.
The LogRewrite directive as mentioned by Ben is not available anymore in Apache 2.4. You need to use the LogLevel directive instead. E.g.
LogLevel alert rewrite:trace6
See http://httpd.apache.org/docs/2.4/mod/mod_rewrite.html#logging
Wrote this handy function and put in my bash scripts or ~/.bash_aliases
. Tested sync'ing locally on Linux with bash and awk
installed. It works
selrsync(){
# selective rsync to sync only certain filetypes;
# based on: https://stackoverflow.com/a/11111793/588867
# Example: selrsync 'tsv,csv' ./source ./target --dry-run
types="$1"; shift; #accepts comma separated list of types. Must be the first argument.
includes=$(echo $types| awk -F',' \
'BEGIN{OFS=" ";}
{
for (i = 1; i <= NF; i++ ) { if (length($i) > 0) $i="--include=*."$i; } print
}')
restargs="$@"
echo Command: rsync -avz --prune-empty-dirs --include="*/" $includes --exclude="*" "$restargs"
eval rsync -avz --prune-empty-dirs --include="*/" "$includes" --exclude="*" $restargs
}
short handy and extensible when one wants to add more arguments (i.e. --dry-run
).
selrsync 'tsv,csv' ./source ./target --dry-run
The command
clause does work as @Karthik says above.
As a simple example, the following service will have a -inMemory
added to its ENTRYPOINT
when docker-compose up
is run.
version: '2'
services:
local-dynamo:
build: local-dynamo
image: spud/dynamo
command: -inMemory
The regular expression I ended up using for when I want to allow spaces in the middle of my string, but not at the beginning or end was this:
[\S]+(\s[\S]+)*
or
^[\S]+(\s[\S]+)*$
So, I know this is an old question, but you could do something like:
if (/^\s+$/.test(myString)) {
//string contains characters and white spaces
}
or you can do what nickf said and use:
if (/\S/.test(myString)) {
// string is not empty and not just whitespace
}
res.erase(it)
always returns the next valid iterator, if you erase the last element it will point to .end()
At the end of the loop ++it
is always called, so you increment .end()
which is not allowed.
Simply checking for .end()
still leaves a bug though, as you always skip an element on every iteration (it
gets 'incremented' by the return from .erase()
, and then again by the loop)
You probably want something like:
while (it != res.end()) {
it = res.erase(it);
}
to erase each element
(for completeness: I assume this is a simplified example, if you simply want every element gone without having to perform an operation on it (e.g. delete) you should simply call res.clear()
)
When you only conditionally erase elements, you probably want something like
for ( ; it != res.end(); ) {
if (condition) {
it = res.erase(it);
} else {
++it;
}
}
Use the matplotlib savefig
function with the keyword argument transparent=True
to save the image as a png file.
In [30]: x = np.linspace(0,6,31)
In [31]: y = np.exp(-0.5*x) * np.sin(x)
In [32]: plot(x, y, 'bo-')
Out[32]: [<matplotlib.lines.Line2D at 0x3f29750>]
In [33]: savefig('demo.png', transparent=True)
Result:
Of course, that plot doesn't demonstrate the transparency. Here's a screenshot of the PNG file displayed using the ImageMagick display
command. The checkerboard pattern is the background that is visible through the transparent parts of the PNG file.
you have to tell angular
that you updated the content after ngAfterContentChecked
you can import ChangeDetectorRef
from @angular/core
and call detectChanges
import {ChangeDetectorRef } from '@angular/core';
constructor( private cdref: ChangeDetectorRef ) {}
ngAfterContentChecked() {
this.sampleViewModel.DataContext = this.DataContext;
this.sampleViewModel.Position = this.Position;
this.cdref.detectChanges();
}
public void Test(){
WebElement sign = fc.findElement(By.xpath(".//*[@id='login-scroll']/a"));
sign.click();
WebElement LoginAsGuest=fc.findElement(By.xpath(".//*[@id='guest-login-option']"));
LoginAsGuest.click();
WebElement email_id= fc.findElement(By.xpath(".//*[@id='guestemail']"));
email_id.sendKeys("[email protected]");
WebElement ContinueButton=fc.findElement(By.xpath(".//*[@id='contibutton']"));
ContinueButton.click();
}
Unlike jQuery
in order to read raw JSON
you will need to decode it in PHP.
print_r(json_decode(file_get_contents("php://input"), true));
php://input
is a read-only stream that allows you to read raw data from the request body.
$_POST
is form variables, you will need to switch to form
radiobutton in postman
then use:
foo=bar&foo2=bar2
To post raw json
with jquery
:
$.ajax({
"url": "/rest/index.php",
'data': JSON.stringify({foo:'bar'}),
'type': 'POST',
'contentType': 'application/json'
});
I just had to implement a RESTfull api where I need to pass parameters. I did this by passing the parameters in the query string in the same style as described by Mark's first example "api/controller?start=date1&end=date2"
In the controller I used a tip from URL split in C#?
// uri: /api/courses
public IEnumerable<Course> Get()
{
NameValueCollection nvc = HttpUtility.ParseQueryString(Request.RequestUri.Query);
var system = nvc["System"];
// BL comes here
return _courses;
}
In my case I was calling the WebApi via Ajax looking like:
$.ajax({
url: '/api/DbMetaData',
type: 'GET',
data: { system : 'My System',
searchString: '123' },
dataType: 'json',
success: function (data) {
$.each(data, function (index, v) {
alert(index + ': ' + v.name);
});
},
statusCode: {
404: function () {
alert('Failed');
}
}
});
I hope this helps...
Here is another one with proper tail call.
The recursive inner fib
function can reuse the stack because everything is needed (the array of numbers) to produce the next number is passed in as an argument, no additional expressions to evaluate.
However tail call optimization introduced in ES2015.
Also one drawback is it gets the array length in every iteration (but only once) to generate the following number and getting the elements of the array upon their index (it is faster though than pop or splice or other array methods) but I did not performance tested the whole solution.
var fibonacci = function(len) {_x000D_
var fib = function(seq) {_x000D_
var seqLen = seq.length;_x000D_
if (seqLen === len) {_x000D_
return seq;_x000D_
} else {_x000D_
var curr = seq[seqLen - 1];_x000D_
var prev = seq[seqLen - 2];_x000D_
seq[seqLen] = curr + prev;_x000D_
return fib(seq);_x000D_
}_x000D_
}_x000D_
return len < 2 ? [0] : fib([0, 1]);_x000D_
}_x000D_
_x000D_
console.log(fibonacci(100));
_x000D_
HTML 5 does support iframes. There were a few interesting attributes added like "sandbox" and "srcdoc".
http://www.w3schools.com/html5/tag_iframe.asp
or you can use
<object data="framed.html" type="text/html"><p>This is the fallback code!</p></object>
You don't want to do this. It is invalid HTML to have more than one element with the same id
. Browsers won't treat that well, and you will have undefined behavior, meaning you have no idea what the browser will give you when you select an element by that id, it could be unpredictable.
You should be using a class, or just iterating through the inputs and keeping track of an index.
Try something like this:
var div2 = document.getElementById('div2');
for(i = j = 0; i < div2.childNodes.length; i++)
if(div2.childNodes[i].nodeName == 'INPUT'){
j++;
var input = div2.childNodes[i];
alert('This is edit'+j+': '+input);
}
A interesting writeup on the logical differences: SQL Server: JOIN vs IN vs EXISTS - the logical difference
I am pretty sure that assuming that the relations and indexes are maintained a Join will perform better overall (more effort goes into working with that operation then others). If you think about it conceptually then its the difference between 2 queries and 1 query.
You need to hook it up to the Query Analyzer and try it and see the difference. Also look at the Query Execution Plan and try to minimize steps.
I wanted to share the steps that I followed that fixed this issue for me in the hopes that it can help someone else (and also as a reminder for me in case something like this happens again)
The issues I'd been having (which were the same as OP's) may have to do with using homebrew to install Ruby.
To fix this, first I updated homebrew:
brew update && brew upgrade
brew doctor
(If brew doctor comes up with any issues, fix them first.) Then I uninstalled ruby
brew uninstall ruby
If rbenv is NOT installed at this point, then
brew install rbenv
brew install ruby-build
echo 'export RBENV_ROOT=/usr/local/var/rbenv' >> ~/.bash_profile
echo 'if which rbenv > /dev/null; then eval "$(rbenv init -)"; fi' >> ~/.bash_profile
Then I used rbenv to install ruby. First, find the desired version:
rbenv install -l
Install that version (e.g. 2.2.2)
rbenv install 2.2.2
Then set the global version to the desired ruby version:
rbenv global 2.2.2
At this point you should see the desired version set for the following commands:
rbenv versions
and
ruby --version
Now you should be able to install bundler:
gem install bundler
And once in the desired project folder, you can install all the required gems:
bundle
bundle install
You could use
using System.Linq;
That will give you a ToList<> extension method for ICollection<>
On linux, find dblink.sql, then execute in the postgresql console something like this to create all required functions:
\i /usr/share/postgresql/8.4/contrib/dblink.sql
you might need to install the contrib packages: sudo apt-get install postgresql-contrib
I too got the same problem. When i changed the Eclipse from EE to Eclipse Classic it worked fine. in Win professional 64Bit. Have a try it may work for you too..
This should work (where enquiryId
is the id you need to match against):
vehicles.RemoveAll(vehicle => vehicle.EnquiryID == enquiryId);
What this does is passes each vehicle in the list into the lambda predicate, evaluating the predicate. If the predicate returns true (ie. vehicle.EnquiryID == enquiryId
), then the current vehicle will be removed from the list.
If you know the types of the objects in your collections, then using the generic collections is a better approach. It avoids casting when retrieving objects from the collections, but can also avoid boxing if the items in the collection are value types (which can cause performance issues).
Firstly, there is no concept of cv-qualified references. So the terminology 'const reference' is not correct and is usually used to describle 'reference to const'. It is better to start talking about what is meant.
$8.3.2/1- "Cv-qualified references are ill-formed except when the cv-qualifiers are introduced through the use of a typedef (7.1.3) or of a template type argument (14.3), in which case the cv-qualifiers are ignored."
Here are the differences
$13.1 - "Only the const and volatile type-specifiers at the outermost level of the parameter type specification are ignored in this fashion; const and volatile type-specifiers buried within a parameter type specification are significant and can be used to distinguish overloaded function declarations.112). In particular, for any type T, “pointer to T,” “pointer to const T,” and “pointer to volatile T” are considered distinct parameter types, as are “reference to T,” “reference to const T,” and “reference to volatile T.”
void f(int &n){
cout << 1;
n++;
}
void f(int const &n){
cout << 2;
//n++; // Error!, Non modifiable lvalue
}
int main(){
int x = 2;
f(x); // Calls overload 1, after the call x is 3
f(2); // Calls overload 2
f(2.2); // Calls overload 2, a temporary of double is created $8.5/3
}
As promised, I'm putting an example for how to use annotations to serialize/deserialize polymorphic objects, I based this example in the Animal
class from the tutorial you were reading.
First of all your Animal
class with the Json Annotations for the subclasses.
import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
import com.fasterxml.jackson.annotation.JsonSubTypes;
import com.fasterxml.jackson.annotation.JsonTypeInfo;
@JsonIgnoreProperties(ignoreUnknown = true)
@JsonTypeInfo(use = JsonTypeInfo.Id.NAME, include = JsonTypeInfo.As.PROPERTY)
@JsonSubTypes({
@JsonSubTypes.Type(value = Dog.class, name = "Dog"),
@JsonSubTypes.Type(value = Cat.class, name = "Cat") }
)
public abstract class Animal {
private String name;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
Then your subclasses, Dog
and Cat
.
public class Dog extends Animal {
private String breed;
public Dog() {
}
public Dog(String name, String breed) {
setName(name);
setBreed(breed);
}
public String getBreed() {
return breed;
}
public void setBreed(String breed) {
this.breed = breed;
}
}
public class Cat extends Animal {
public String getFavoriteToy() {
return favoriteToy;
}
public Cat() {}
public Cat(String name, String favoriteToy) {
setName(name);
setFavoriteToy(favoriteToy);
}
public void setFavoriteToy(String favoriteToy) {
this.favoriteToy = favoriteToy;
}
private String favoriteToy;
}
As you can see, there is nothing special for Cat
and Dog
, the only one that know about them is the abstract
class Animal
, so when deserializing, you'll target to Animal
and the ObjectMapper
will return the actual instance as you can see in the following test:
public class Test {
public static void main(String[] args) {
ObjectMapper objectMapper = new ObjectMapper();
Animal myDog = new Dog("ruffus","english shepherd");
Animal myCat = new Cat("goya", "mice");
try {
String dogJson = objectMapper.writeValueAsString(myDog);
System.out.println(dogJson);
Animal deserializedDog = objectMapper.readValue(dogJson, Animal.class);
System.out.println("Deserialized dogJson Class: " + deserializedDog.getClass().getSimpleName());
String catJson = objectMapper.writeValueAsString(myCat);
Animal deseriliazedCat = objectMapper.readValue(catJson, Animal.class);
System.out.println("Deserialized catJson Class: " + deseriliazedCat.getClass().getSimpleName());
} catch (Exception e) {
e.printStackTrace();
}
}
}
Output after running the Test
class:
{"@type":"Dog","name":"ruffus","breed":"english shepherd"}
Deserialized dogJson Class: Dog
{"@type":"Cat","name":"goya","favoriteToy":"mice"}
Deserialized catJson Class: Cat
Hope this helps,
Jose Luis
If you want to see what is run in the database use dd(DB::getQueryLog())
to see what queries were run.
Try this
BookingDates::where('email', Input::get('email'))
->orWhere('name', 'like', '%' . Input::get('name') . '%')->get();
The key here is that you say "If I type in a URL directly...".
By default under forms authentication the browser caches pages for the user. So, selecting a URL directly from the browsers address box dropdown, or typing it in, MAY get the page from the browser's cache, and never go back to the server to check authentication/authorization. The solution to this is to prevent client-side caching in the Page_Load event of each page, or in the OnLoad() of your base page:
Response.Cache.SetCacheability(HttpCacheability.NoCache);
You might also like to call:
Response.Cache.SetNoStore();
insert into account_type_standard (account_type_Standard_id, tax_status_id, recipient_id)
select account_type_standard_seq.nextval,
ts.tax_status_id,
( select r.recipient_id
from recipient r
where r.recipient_code = ?
)
from tax_status ts
where ts.tax_status_code = ?
Putty doesn't use openssh key files - there is a utility in putty suite to convert them.
edit: it is called puttygen
No, == between Integer, Long etc will check for reference equality - i.e.
Integer x = ...;
Integer y = ...;
System.out.println(x == y);
this will check whether x
and y
refer to the same object rather than equal objects.
So
Integer x = new Integer(10);
Integer y = new Integer(10);
System.out.println(x == y);
is guaranteed to print false
. Interning of "small" autoboxed values can lead to tricky results:
Integer x = 10;
Integer y = 10;
System.out.println(x == y);
This will print true
, due to the rules of boxing (JLS section 5.1.7). It's still reference equality being used, but the references genuinely are equal.
If the value p being boxed is an integer literal of type int between -128 and 127 inclusive (§3.10.1), or the boolean literal true or false (§3.10.3), or a character literal between '\u0000' and '\u007f' inclusive (§3.10.4), then let a and b be the results of any two boxing conversions of p. It is always the case that a == b.
Personally I'd use:
if (x.intValue() == y.intValue())
or
if (x.equals(y))
As you say, for any comparison between a wrapper type (Integer
, Long
etc) and a numeric type (int
, long
etc) the wrapper type value is unboxed and the test is applied to the primitive values involved.
This occurs as part of binary numeric promotion (JLS section 5.6.2). Look at each individual operator's documentation to see whether it's applied. For example, from the docs for ==
and !=
(JLS 15.21.1):
If the operands of an equality operator are both of numeric type, or one is of numeric type and the other is convertible (§5.1.8) to numeric type, binary numeric promotion is performed on the operands (§5.6.2).
and for <
, <=
, >
and >=
(JLS 15.20.1)
The type of each of the operands of a numerical comparison operator must be a type that is convertible (§5.1.8) to a primitive numeric type, or a compile-time error occurs. Binary numeric promotion is performed on the operands (§5.6.2). If the promoted type of the operands is int or long, then signed integer comparison is performed; if this promoted type is float or double, then floating-point comparison is performed.
Note how none of this is considered as part of the situation where neither type is a numeric type.
When I started using json, I was confused and unable to figure it out for some time, but finally I got what I wanted
Here is the simple solution
import json
m = {'id': 2, 'name': 'hussain'}
n = json.dumps(m)
o = json.loads(n)
print(o['id'], o['name'])
To run a URL simply use command below easy yess CPanel 100%
/usr/bin/php -q /home/CpanelUsername/public_html/RootFolder/cronjob/fetch.php
I hope this help.
it works for me fine, if you a have string, then simply explode it first.
$emails = array();
Mail::send('emails.maintenance',$mail_params, function($message) use ($emails) {
foreach ($emails as $email) {
$message->to($email);
}
$message->subject('My Email');
});
for /l %%a in (254, -1, 1) do (
for /l %%b in (1, 1, 254) do (
for %%c in (20, 168) do (
for %%e in (172, 192) do (
ping /n 1 %%e.%%c.%%b.%%a>>ping.txt
)
)
)
)
pause>nul
I would like to suggest DBEAVER .it is based on eclipse and supports better data handling
Users of the fish shell can use this script to do the same thing.
# content has to be in .config/fish/config.fish
# if it does not exist, create the file
setenv SSH_ENV $HOME/.ssh/environment
function start_agent
echo "Initializing new SSH agent ..."
ssh-agent -c | sed 's/^echo/#echo/' > $SSH_ENV
echo "succeeded"
chmod 600 $SSH_ENV
. $SSH_ENV > /dev/null
ssh-add
end
function test_identities
ssh-add -l | grep "The agent has no identities" > /dev/null
if [ $status -eq 0 ]
ssh-add
if [ $status -eq 2 ]
start_agent
end
end
end
if [ -n "$SSH_AGENT_PID" ]
ps -ef | grep $SSH_AGENT_PID | grep ssh-agent > /dev/null
if [ $status -eq 0 ]
test_identities
end
else
if [ -f $SSH_ENV ]
. $SSH_ENV > /dev/null
end
ps -ef | grep $SSH_AGENT_PID | grep -v grep | grep ssh-agent > /dev/null
if [ $status -eq 0 ]
test_identities
else
start_agent
end
end
Did you took a look at this? http://developer.yahoo.com/yui/history/
That's because you missed ELSE.
"Returns the result for the first condition that is true. If there was no matching result value, the result after ELSE is returned, or NULL if there is no ELSE part." (http://dev.mysql.com/doc/refman/5.0/en/control-flow-functions.html#operator_case)
There is a simple solution.
<html>
<head>
<script src="http://code.jquery.com/jquery-1.9.1.js"></script>
<script src="http://code.jquery.com/ui/1.10.3/jquery-ui.js"> </script>
<script type="text/javascript" src="../js/jquery.min.js"></script>
<script type="text/javascript" src="../js/flexcroll.js"></script>
<script type="text/javascript" src="../js/jquery-ui-1.8.18.custom.min.js"></script>
<script type="text/javascript" src="../js/JScript.js"></script>
<title>calendar</title>
<script type="text/javascript">
$(function(){$('.dateTxt').datepicker(); });
</script>
</head>
<body>
<p>Date 1: <input id="one" class="dateTxt" type="text" ></p>
<p>Date 2: <input id="two" class="dateTxt" type="text" ></p>
<p>Date 3: <input id="three" class="dateTxt" type="text" ></p>
</body>
</html>
This is a example for get the url image, escape the p tag from some item.
Try this:
$('#img').attr('src').split('<p>')[1].split('</p>')[0]
You should put it into command line in windows.
mysqladmin -u [username] -p flush-hosts
**** [MySQL password]
or
mysqladmin flush-hosts -u [username] -p
**** [MySQL password]
For network login use the following command:
mysqladmin -h <RDS ENDPOINT URL> -P <PORT> -u <USER> -p flush-hosts
mysqladmin -h [YOUR RDS END POINT URL] -P 3306 -u [DB USER] -p flush-hosts
you can permanently solution your problem by editing my.ini file[Mysql configuration file] change variables max_connections = 10000;
or
login into MySQL using command line -
mysql -u [username] -p
**** [MySQL password]
put the below command into MySQL window
SET GLOBAL max_connect_errors=10000;
set global max_connections = 200;
check veritable using command-
show variables like "max_connections";
show variables like "max_connect_errors";
I don't see why there is a encapsulation of a while...
Use
//Use the appropriate start and end...
for(int rowIndex = 0, e = 65536; i < e; ++i){
if(rowIndex >= dataColLinker.size()) {
dataColLinker.add(value);
} else {
dataColLinker.set(rowIndex, value);
}
}
Changing METHOD peer to trust in pg_hba.conf (/etc/postgresql/9.1/main/pg_hba.conf | line 85) solves the issue. Adding md5 asks for a password, hence if there is a requirement to avoid using passwords, use trust instead of md5.
List<T>.Add
adds a single element. Instead, use List<T>.AddRange
to add multiple values.
Additionally, List<T>.AddRange
takes an IEnumerable<T>
, so you don't need to convert tripDetails
into a List<TripDetails>
, you can pass it directly, e.g.:
tripDetailsCollection.AddRange(tripDetails);
In my case it was python path issue.
django-admin dbshell
)
(venv) shakeel@workstation:~/project_path$ export PYTHONPATH=/home/shakeel/project_path
(venv) shakeel@workstation:~/project_path$ export DJANGO_SETTINGS_MODULE=my_project.settings
(venv) shakeel@workstation:~/project_path$ django-admin dbshell
SQLite version 3.22.0 2018-01-22 18:45:57
Enter ".help" for usage hints.
sqlite>
otherwise python manage.py shell
works like charm.
On Windows 10, to create the virtual environment, I replace "pip mkvirtualenv myproject" by "mkvirtualenv myproject" and that works well.
List<long> distinctlongs = longs.Distinct().OrderBy(x => x).ToList();
To follow up with what thomasfuchs said but instead for GitHub Enterprise users here's what you can use.
curl -H 'Authorization: token INSERTACCESSTOKENHERE' -H 'Accept: application/vnd.github.v3.raw' -O -L https://your_domain/api/v3/repos/owner/repo/contents/path
Also here's the API documentation https://developer.github.com/v3/repos/contents
byte[] buff = {1, -2, 5, 66};
for(byte c : buff) {
System.out.format("%d ", c);
}
System.out.println();
gets you
1 -2 5 66
Quick Hack:
<script>
document.children[0].innerHTML="<h1>QUICK_HACK</h1>";
</script>
Use Cases:
1: Save as .html file and run in chrome or firefox or edge. (IE wont work)
2: Use in http://js.do
In Action: http://js.do/HeavyMetalCookies/quick_hack
Broken down with comments:
<script>
//: The message "QUICK_HACK"
//: wrapped in a header #1 tag.
var text = "<h1>QUICK_HACK</h1>";
//: It's a quick hack, so I don't
//: care where it goes on the document,
//: just as long as I can see it.
//: Since I am doing this quick hack in
//: an empty file or scratchpad,
//: it should be visible.
var child = document.children[0];
//: Set the html content of your child
//: to the message you want to see on screen.
child.innerHTML = text;
</script>
Reason Why I posted:
JS.do has two must haves:
But doesn't show console.log messages. Came here looking for a quick solution. I just want to see the results of a few lines of scratchpad code, the other solutions are too much work.
I used this code,
<div style="visibility:hidden">
<audio autoplay loop>
<source src="Aakaasam-Yemaaya Chesave.mp3">
</audio>
</div>
It is working well but i want stop and pause button. So, we can stop if we don't want to listen.
Almost what I wanted @Ralph, but here is the best answer. It'll solve your code problems:
To solve these problems, and meet all my requirements, I've adapted the code from here. I've cleaned it a little to make it more readable.
Option Explicit
Sub ExportAsCSV()
Dim MyFileName As String
Dim CurrentWB As Workbook, TempWB As Workbook
Set CurrentWB = ActiveWorkbook
ActiveWorkbook.ActiveSheet.UsedRange.Copy
Set TempWB = Application.Workbooks.Add(1)
With TempWB.Sheets(1).Range("A1")
.PasteSpecial xlPasteValues
.PasteSpecial xlPasteFormats
End With
Dim Change below to "- 4" to become compatible with .xls files
MyFileName = CurrentWB.Path & "\" & Left(CurrentWB.Name, Len(CurrentWB.Name) - 5) & ".csv"
Application.DisplayAlerts = False
TempWB.SaveAs Filename:=MyFileName, FileFormat:=xlCSV, CreateBackup:=False, Local:=True
TempWB.Close SaveChanges:=False
Application.DisplayAlerts = True
End Sub
There are still some small thing with the code above that you should notice:
.Close
and DisplayAlerts=True
should be in a finally clause, but I don't know how to do it in VBA- 5
to - 4
when setting MyFileName.Edit: put Local:=True
to save with my locale CSV delimiter.
My own version of Kim T's code above which combines with some jQuery and allows for targeting of specific iframes.
$(function() {
callPlayer($('#iframe')[0], 'unMute');
});
function callPlayer(iframe, func, args) {
if ( iframe.src.indexOf('youtube.com/embed') !== -1) {
iframe.contentWindow.postMessage( JSON.stringify({
'event': 'command',
'func': func,
'args': args || []
} ), '*');
}
}
Tthe problems may be caused by incorrect mapping. Are you sure you have your result set in "data"? In my example, the backend code returns results under "items" key, so the mapping should look like:
results: $.map(data.items, function (item) {
....
}
and not:
results: $.map(data, function (item) {
....
}
If you can't put value on buttons. I have just a rough solution. Put a hidden field. And when one of the buttons are clicked before submitting, populate the value of hidden field with like say 1 when first button clicked and 2 if second one is clicked. and in submit page check for the value of this hidden field to determine which one is clicked.
String sc1="0.0";
Double s1=Double.parseDouble(sc1.toString());
To add a new cookie, use HttpServletResponse.addCookie(Cookie). The Cookie is pretty much a key value pair taking a name and value as strings on construction.
May be you want this (oop in javascript)
function box(color)
{
this.color=color;
}
var box1=new box('red');
var box2=new box('white');
With Bootstrap you can use an anchor like a button.
<a class="btn btn-success" href="https://www.google.com" target="_blank">Google</a>
And use target="_blank"
to open the link in a new tab.
A handle is whatever you want it to be.
A handle can be a unsigned integer used in some lookup table.
A handle can be a pointer to, or into, a larger set of data.
It depends on how the code that uses the handle behaves. That determines the handle type.
The reason the term 'handle' is used is what is important. That indicates them as an identification or access type of object. Meaning, to the programmer, they represent a 'key' or access to something.
Other answers mention site.USER_SITE
as where Python packages get placed. If you're looking for binaries, these go in {site.USER_BASE}/bin
.
If you want to add this directory to your shell's search path, use:
export PATH="${PATH}:$(python3 -c 'import site; print(site.USER_BASE)')/bin"
I had the same problem (different web app though) with the error message and it turned out to be the MIME-Type for .js files was text/x-js
instead of application/javascript
due to a duplicate entry in mime.types on the server that was responsible for serving the js files. It seems that this is happening if the header X-Content-Type-Options: nosniff
is set, which makes Firefox (and Chrome) block the content of the js files.
By the way, to prevent this from happening in the first place, simply press Ctrl+C in terminal while SimpleHTTPServer is still running normally. This will "properly" stop the server and release the port so you don't have to find and kill the process again before restarting the server.
(Mods: I did try to put this comment on the best answer where it belongs, but I don't have enough reputation.)
I tried the first solution and it works but the end user can easily identify that the div's are refreshing as it is fadeIn(), without fade in i tried .toggle().toggle() and it works perfect. you can try like this
$("#panel").toggle().toggle();
_x000D_
it works perfectly for me as i'm developing a messenger and need to minimize and maximize the chat box's and this does it best rather than the above code.
In some cases this is the best way because your code may have change something and j=i+1 won't check that.
for (int i = 0; i < list.size(); i++){
for (int j = 0; j < list.size(); j++) {
if(i == j) {
//to do code here
continue;
}
}
}
SELECT NAME FROM v$database;
shows the database name in oracle
For reference, a non-CSS solution:
Below is some JS that re-sizes a font depending on the text length within a container.
Codepen with slightly modified code, but same idea as below:
function scaleFontSize(element) {
var container = document.getElementById(element);
// Reset font-size to 100% to begin
container.style.fontSize = "100%";
// Check if the text is wider than its container,
// if so then reduce font-size
if (container.scrollWidth > container.clientWidth) {
container.style.fontSize = "70%";
}
}
For me, I call this function when a user makes a selection in a drop-down, and then a div in my menu gets populated (this is where I have dynamic text occurring).
scaleFontSize("my_container_div");
In addition, I also use CSS ellipses ("...") to truncate yet even longer text too, like so:
#my_container_div {
width: 200px; /* width required for text-overflow to work */
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
}
So, ultimately:
Short text: e.g. "APPLES"
Fully rendered, nice big letters.
Long text: e.g. "APPLES & ORANGES"
Gets scaled down 70%, via the above JS scaling function.
Super long text: e.g. "APPLES & ORANGES & BANAN..."
Gets scaled down 70% AND gets truncated with a "..." ellipses, via the above JS scaling function together with the CSS rule.
You could also explore playing with CSS letter-spacing to make text narrower while keeping the same font size.
Check the following example:
// First get your image
$imgPath = 'path-to-your-picture/image.jpg';
$img = base64_encode(file_get_contents($imgPath));
echo '<img width="100" height="100" src="data:image/jpg;base64,'. $img .'" />'
There's no casting in javascript, so you cannot throw if "casting fails".
Typescript supports casting but that's only for compilation time, and you can do it like this:
const toDo = <IToDoDto> req.body;
// or
const toDo = req.body as IToDoDto;
You can check at runtime if the value is valid and if not throw an error, i.e.:
function isToDoDto(obj: any): obj is IToDoDto {
return typeof obj.description === "string" && typeof obj.status === "boolean";
}
@Post()
addToDo(@Response() res, @Request() req) {
if (!isToDoDto(req.body)) {
throw new Error("invalid request");
}
const toDo = req.body as IToDoDto;
this.toDoService.addToDo(toDo);
return res.status(HttpStatus.CREATED).end();
}
As @huyz pointed out, there's no need for the type assertion because isToDoDto
is a type guard, so this should be enough:
if (!isToDoDto(req.body)) {
throw new Error("invalid request");
}
this.toDoService.addToDo(req.body);
Horizontal scrollbars in a HTML Select are not natively supported. However, here's a way to create the appearance of a horizontal scrollbar:
1. First create a css class
<style type="text/css">
.scrollable{
overflow: auto;
width: 70px; /* adjust this width depending to amount of text to display */
height: 80px; /* adjust height depending on number of options to display */
border: 1px silver solid;
}
.scrollable select{
border: none;
}
</style>
2. Wrap the SELECT inside a DIV - also, explicitly set the size to the number of options.
<div class="scrollable">
<select size="6" multiple="multiple">
<option value="1" selected>option 1 The Long Option</option>
<option value="2">option 2</option>
<option value="3">option 3</option>
<option value="4">option 4</option>
<option value="5">option 5 Another Longer than the Long Option ;)</option>
<option value="6">option 6</option>
</select>
</div>
Instead of using np.argsort
you could use np.argpartition
- if you only need the indices of the lowest/highest n elements.
That doesn't require to sort the whole array but just the part that you need but note that the "order inside your partition" is undefined, so while it gives the correct indices they might not be correctly ordered:
>>> avgDists = [1, 8, 6, 9, 4]
>>> np.array(avgDists).argpartition(2)[:2] # indices of lowest 2 items
array([0, 4], dtype=int64)
>>> np.array(avgDists).argpartition(-2)[-2:] # indices of highest 2 items
array([1, 3], dtype=int64)
From MSDN:
C#, through the .NET Framework common language runtime (CLR), automatically releases the memory used to store objects that are no longer required. The release of memory is non-deterministic; memory is released whenever the CLR decides to perform garbage collection. However, it is usually best to release limited resources such as file handles and network connections as quickly as possible.
The using statement allows the programmer to specify when objects that use resources should release them. The object provided to the using statement must implement the IDisposable interface. This interface provides the Dispose method, which should release the object's resources.
In other words, the using
statement tells .NET to release the object specified in the using
block once it is no longer needed.
With the addition of androidx in Studio 3.0+ the Toolbar compatibility is now in a new library, accessible like this
import androidx.appcompat.widget.Toolbar
The best way to do it using server side as client side doesn't work well in all scenarios. I was trying to build online json to xml and xml to json converter using javascript and I felt almost impossible as it was not working in all scenarios. Ultimately I ended up doing it server side using Newtonsoft in ASP.MVC. Here is the online converter http://techfunda.com/Tools/XmlToJson
I ran into this today and got it to work with:
EXECUTE sp_rename N'dbo.table_name.original_field_name', N'new_field_name', 'COLUMN'
To get this syntax, I followed Martin Smith's advice above - open up the table in design view, rename the column and then click table designer | generate change script. This produced the script below which does the renaming in two steps:
/* To prevent any potential data loss issues, you should review this script in
detail before running it outside the context of the database designer.*/
BEGIN TRANSACTION
SET QUOTED_IDENTIFIER ON
SET ARITHABORT ON
SET NUMERIC_ROUNDABORT OFF
SET CONCAT_NULL_YIELDS_NULL ON
SET ANSI_NULLS ON
SET ANSI_PADDING ON
SET ANSI_WARNINGS ON
COMMIT
BEGIN TRANSACTION
GO
EXECUTE sp_rename N'dbo.table_name.original_field_name', N'Tmp_new_field_name_1', COLUMN'
GO
EXECUTE sp_rename N'dbo.table_name.Tmp_new_field_name_1', N'new_field_name', 'COLUMN'
GO
ALTER TABLE dbo.table_name SET (LOCK_ESCALATION = TABLE)
GO
COMMIT
It's really easy to do this, simply send the file via an XHR request inside of the file input's onchange handler.
<input id="myFileInput" type="file" accept="image/*;capture=camera">
var myInput = document.getElementById('myFileInput');
function sendPic() {
var file = myInput.files[0];
// Send file here either by adding it to a `FormData` object
// and sending that via XHR, or by simply passing the file into
// the `send` method of an XHR instance.
}
myInput.addEventListener('change', sendPic, false);
The following is another example using Random and forEach
int firstNum = 20;//Inclusive
int lastNum = 50;//Exclusive
int streamSize = 10;
Random num = new Random().ints(10, 20, 50).forEach(System.out::println);