In your test, you are comparing the two TestParent
beans, not the single TestedChild
bean.
Also, Spring proxies your @Configuration
class so that when you call one of the @Bean
annotated methods, it caches the result and always returns the same object on future calls.
See here:
One thing that hasn't been pointed out, is that there is little to no difference between not having an active environment and and activating the base environment, if you just want to run applications from Conda's (Python's) scripts directory (as @DryLabRebel wants).
You can install and uninstall via conda and conda shows the base environment as active - which essentially it is:
> echo $Env:CONDA_DEFAULT_ENV
> conda env list
# conda environments:
#
base * F:\scoop\apps\miniconda3\current
> conda activate
> echo $Env:CONDA_DEFAULT_ENV
base
> conda env list
# conda environments:
#
base * F:\scoop\apps\miniconda3\current
It sometimes happen even when we stop running processes in IDE with help of Red button , we continue to get same error.
It was resolved with following steps,
Check what processes are running at available ports
netstat -ao |find /i "listening"
We get following
TCP 0.0.0.0:7981 machinename:0 LISTENING 2428
TCP 0.0.0.0:7982 machinename:0 LISTENING 2428
TCP 0.0.0.0:8080 machinename:0 LISTENING 12704
TCP 0.0.0.0:8500 machinename:0 LISTENING 2428
i.e. Port Numbers and what Process Id they are listening to
Stop process running at your port number(In this case it is 8080 & Process Id is 12704)
Taskkill /F /IM 12704
(Note: Mention correct Process Id)
For more information follow these links Link1 and Link2.
My Issue was resolved with this, Hope this helps !
Was getting same error. My device was not connected to android studio. When I connected to studio. It works. This solves my problem.
Try this, It might work for you too.
This worked for me on both v1.5 and v2.1
Both commands are correct :
mvn clean install -Pdev1
mvn clean install -P dev1
The problem is most likely not profile activation, but the profile not accomplishing what you expect it to.
It is normal that the command :
mvn help:active-profiles
does not display the profile, because is does not contain -Pdev1
. You could add it to make the profile appear, but it would be pointless because you would be testing maven itself.
What you should do is check the profile behavior by doing the following :
activeByDefault
to true
in the profile configuration,mvn help:active-profiles
(to make sure it is effectively
activated even without -Pdev1
),mvn install
.It should give the same results as before, and therefore confirm that the problem is the profile not doing what you expect.
If you don't want to use
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>(...)</version>
</parent>
as a parent POM, you may use the
mvn org.springframework.boot:spring-boot-maven-plugin:run
command instead.
For me it worked when I've added @EnableJUnit4MigrationSupport
class annotation.
(Of course together with already mentioned gradle libs and settings)
I solved this issue following the indication provided in the article http://blog.dev-area.net/2015/08/13/android-4-1-enable-tls-1-1-and-tls-1-2/ with little changes.
SSLContext context = SSLContext.getInstance("TLS");
context.init(null, null, null);
SSLSocketFactory noSSLv3Factory = null;
if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.KITKAT) {
noSSLv3Factory = new TLSSocketFactory(sslContext.getSocketFactory());
} else {
noSSLv3Factory = sslContext.getSocketFactory();
}
connection.setSSLSocketFactory(noSSLv3Factory);
This is the code of the custom TLSSocketFactory:
public static class TLSSocketFactory extends SSLSocketFactory {
private SSLSocketFactory internalSSLSocketFactory;
public TLSSocketFactory(SSLSocketFactory delegate) throws KeyManagementException, NoSuchAlgorithmException {
internalSSLSocketFactory = delegate;
}
@Override
public String[] getDefaultCipherSuites() {
return internalSSLSocketFactory.getDefaultCipherSuites();
}
@Override
public String[] getSupportedCipherSuites() {
return internalSSLSocketFactory.getSupportedCipherSuites();
}
@Override
public Socket createSocket(Socket s, String host, int port, boolean autoClose) throws IOException {
return enableTLSOnSocket(internalSSLSocketFactory.createSocket(s, host, port, autoClose));
}
@Override
public Socket createSocket(String host, int port) throws IOException, UnknownHostException {
return enableTLSOnSocket(internalSSLSocketFactory.createSocket(host, port));
}
@Override
public Socket createSocket(String host, int port, InetAddress localHost, int localPort) throws IOException, UnknownHostException {
return enableTLSOnSocket(internalSSLSocketFactory.createSocket(host, port, localHost, localPort));
}
@Override
public Socket createSocket(InetAddress host, int port) throws IOException {
return enableTLSOnSocket(internalSSLSocketFactory.createSocket(host, port));
}
@Override
public Socket createSocket(InetAddress address, int port, InetAddress localAddress, int localPort) throws IOException {
return enableTLSOnSocket(internalSSLSocketFactory.createSocket(address, port, localAddress, localPort));
}
/*
* Utility methods
*/
private static Socket enableTLSOnSocket(Socket socket) {
if (socket != null && (socket instanceof SSLSocket)
&& isTLSServerEnabled((SSLSocket) socket)) { // skip the fix if server doesn't provide there TLS version
((SSLSocket) socket).setEnabledProtocols(new String[]{TLS_v1_1, TLS_v1_2});
}
return socket;
}
private static boolean isTLSServerEnabled(SSLSocket sslSocket) {
System.out.println("__prova__ :: " + sslSocket.getSupportedProtocols().toString());
for (String protocol : sslSocket.getSupportedProtocols()) {
if (protocol.equals(TLS_v1_1) || protocol.equals(TLS_v1_2)) {
return true;
}
}
return false;
}
}
Edit: Thank's to ademar111190 for the kotlin implementation (link)
class TLSSocketFactory constructor(
private val internalSSLSocketFactory: SSLSocketFactory
) : SSLSocketFactory() {
private val protocols = arrayOf("TLSv1.2", "TLSv1.1")
override fun getDefaultCipherSuites(): Array<String> = internalSSLSocketFactory.defaultCipherSuites
override fun getSupportedCipherSuites(): Array<String> = internalSSLSocketFactory.supportedCipherSuites
override fun createSocket(s: Socket, host: String, port: Int, autoClose: Boolean) =
enableTLSOnSocket(internalSSLSocketFactory.createSocket(s, host, port, autoClose))
override fun createSocket(host: String, port: Int) =
enableTLSOnSocket(internalSSLSocketFactory.createSocket(host, port))
override fun createSocket(host: String, port: Int, localHost: InetAddress, localPort: Int) =
enableTLSOnSocket(internalSSLSocketFactory.createSocket(host, port, localHost, localPort))
override fun createSocket(host: InetAddress, port: Int) =
enableTLSOnSocket(internalSSLSocketFactory.createSocket(host, port))
override fun createSocket(address: InetAddress, port: Int, localAddress: InetAddress, localPort: Int) =
enableTLSOnSocket(internalSSLSocketFactory.createSocket(address, port, localAddress, localPort))
private fun enableTLSOnSocket(socket: Socket?) = socket?.apply {
if (this is SSLSocket && isTLSServerEnabled(this)) {
enabledProtocols = protocols
}
}
private fun isTLSServerEnabled(sslSocket: SSLSocket) = sslSocket.supportedProtocols.any { it in protocols }
}
Maybe you forgot the MySQL JDBC driver.
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.34</version>
</dependency>
Unfortunately, vars files do not have include statements.
You can either put all the vars into the definitions
dictionary, or add the variables as another dictionary in the same file.
If you don't want to have them in the same file, you can include them at the playbook level by adding the vars file at the start of the play:
---
- hosts: myhosts
vars_files:
- default_step.yml
or in a task:
---
- hosts: myhosts
tasks:
- name: include default step variables
include_vars: default_step.yml
For SublimeText 3 on Mac:
# .jshintrc
{
"esversion": 6
}
// SublimeLinter Settings - User
{
"linters": {
"jshint": {
"args": ["--config", "/Users/[your_username]/.jshintrc"]
}
}
}
The following code works fine with me:
brew install zbar
pip install pyqrcode
pip install pyzbar
For QR code image creation:
import pyqrcode
qr = pyqrcode.create("test1")
qr.png("test1.png", scale=6)
For QR code decoding:
from PIL import Image
from pyzbar.pyzbar import decode
data = decode(Image.open('test1.png'))
print(data)
that prints the result:
[Decoded(data=b'test1', type='QRCODE', rect=Rect(left=24, top=24, width=126, height=126), polygon=[Point(x=24, y=24), Point(x=24, y=150), Point(x=150, y=150), Point(x=150, y=24)])]
If you are using node (React / Redux / Universal JS) you can install npm i -S jwt-autorefresh
.
This library schedules refresh of JWT tokens at a user calculated number of seconds prior to the access token expiring (based on the exp claim encoded in the token). It has an extensive test suite and checks for quite a few conditions to ensure any strange activity is accompanied by a descriptive message regarding misconfigurations from your environment.
Full example implementation
import autorefresh from 'jwt-autorefresh'
/** Events in your app that are triggered when your user becomes authorized or deauthorized. */
import { onAuthorize, onDeauthorize } from './events'
/** Your refresh token mechanism, returning a promise that resolves to the new access tokenFunction (library does not care about your method of persisting tokens) */
const refresh = () => {
const init = { method: 'POST'
, headers: { 'Content-Type': `application/x-www-form-urlencoded` }
, body: `refresh_token=${localStorage.refresh_token}&grant_type=refresh_token`
}
return fetch('/oauth/token', init)
.then(res => res.json())
.then(({ token_type, access_token, expires_in, refresh_token }) => {
localStorage.access_token = access_token
localStorage.refresh_token = refresh_token
return access_token
})
}
/** You supply a leadSeconds number or function that generates a number of seconds that the refresh should occur prior to the access token expiring */
const leadSeconds = () => {
/** Generate random additional seconds (up to 30 in this case) to append to the lead time to ensure multiple clients dont schedule simultaneous refresh */
const jitter = Math.floor(Math.random() * 30)
/** Schedule autorefresh to occur 60 to 90 seconds prior to token expiration */
return 60 + jitter
}
let start = autorefresh({ refresh, leadSeconds })
let cancel = () => {}
onAuthorize(access_token => {
cancel()
cancel = start(access_token)
})
onDeauthorize(() => cancel())
disclaimer: I am the maintainer
You can also not specify the type parameter which seems a bit cleaner and what Spring intended when looking at the docs:
@RequestMapping(method = RequestMethod.HEAD, value = Constants.KEY )
public ResponseEntity taxonomyPackageExists( @PathVariable final String key ){
// ...
return new ResponseEntity(HttpStatus.NO_CONTENT);
}
This may be coming in Late but I think I figured out a better way to load external configurations especially when you run your spring-boot app using java jar myapp.war
instead of @PropertySource("classpath:some.properties")
The configuration would be loaded form the root of the project or from the location the war/jar file is being run from
public class Application implements EnvironmentAware {
public static void main(String[] args) throws Exception {
SpringApplication.run(Application.class, args);
}
@Override
public void setEnvironment(Environment environment) {
//Set up Relative path of Configuration directory/folder, should be at the root of the project or the same folder where the jar/war is placed or being run from
String configFolder = "config";
//All static property file names here
List<String> propertyFiles = Arrays.asList("application.properties","server.properties");
//This is also useful for appending the profile names
Arrays.asList(environment.getActiveProfiles()).stream().forEach(environmentName -> propertyFiles.add(String.format("application-%s.properties", environmentName)));
for (String configFileName : propertyFiles) {
File configFile = new File(configFolder, configFileName);
LOGGER.info("\n\n\n\n");
LOGGER.info(String.format("looking for configuration %s from %s", configFileName, configFolder));
FileSystemResource springResource = new FileSystemResource(configFile);
LOGGER.log(Level.INFO, "Config file : {0}", (configFile.exists() ? "FOund" : "Not Found"));
if (configFile.exists()) {
try {
LOGGER.info(String.format("Loading configuration file %s", configFileName));
PropertiesFactoryBean pfb = new PropertiesFactoryBean();
pfb.setFileEncoding("UTF-8");
pfb.setLocation(springResource);
pfb.afterPropertiesSet();
Properties properties = pfb.getObject();
PropertiesPropertySource externalConfig = new PropertiesPropertySource("externalConfig", properties);
((ConfigurableEnvironment) environment).getPropertySources().addFirst(externalConfig);
} catch (IOException ex) {
LOGGER.log(Level.SEVERE, null, ex);
}
} else {
LOGGER.info(String.format("Cannot find Configuration file %s... \n\n\n\n", configFileName));
}
}
}
}
Hope it helps.
I had the same error. I cleaned the maven project then the problem was solved.
Wrong method was used for errors, here is the working code:
BufferedReader br = null;
if (100 <= conn.getResponseCode() && conn.getResponseCode() <= 399) {
br = new BufferedReader(new InputStreamReader(conn.getInputStream()));
} else {
br = new BufferedReader(new InputStreamReader(conn.getErrorStream()));
}
The meaning of an AssertionError
is that something happened that the developer thought was impossible to happen.
So if an AssertionError
is ever thrown, it is a clear sign of a programming error.
I had to change the import statement:
import org.junit.jupiter.api.Test;
to
import org.junit.Test;
Enhancement to Alexis King's code to run without Jquery and removal of empty arrays and array of empty objects (With no properties) recursively.
var sjonObj = {
"executionMode": "SEQUENTIAL",
"coreTEEVersion": "3.3.1.4_RC8",
"testSuiteId": "yyy",
"testSuiteFormatVersion": "1.0.0.0",
"testStatus": "IDLE",
"reportPath": "",
"startTime": 0,
"durationBetweenTestCases": 20,
"endTime": 0,
"lastExecutedTestCaseId": 0,
"repeatCount": 0,
"retryCount": 0,
"fixedTimeSyncSupported": false,
"totalRepeatCount": 0,
"totalRetryCount": 0,
"summaryReportRequired": "true",
"postConditionExecution": "ON_SUCCESS",
"testCaseList": [{
"executionMode": "SEQUENTIAL",
"commandList": [{
"sample1": "",
"sample2": ""
}],
"testCaseList": [
],
"testStatus": "IDLE",
"boundTimeDurationForExecution": 0,
"startTime": 0,
"endTime": 0,
"label": null,
"repeatCount": 0,
"retryCount": 0,
"totalRepeatCount": 0,
"totalRetryCount": 0,
"testCaseId": "a",
"summaryReportRequired": "false",
"postConditionExecution": "ON_SUCCESS"
},
{
"executionMode": "SEQUENTIAL",
"commandList": [
],
"testCaseList": [{
"executionMode": "SEQUENTIAL",
"commandList": [{
"commandParameters": {
"serverAddress": "www.ggp.com",
"echoRequestCount": "",
"sendPacketSize": "",
"interval": "",
"ttl": "",
"addFullDataInReport": "True",
"maxRTT": "",
"failOnTargetHostUnreachable": "True",
"failOnTargetHostUnreachableCount": "",
"initialDelay": "",
"commandTimeout": "",
"testDuration": ""
},
"commandName": "Ping",
"testStatus": "IDLE",
"label": "",
"reportFileName": "tc_2-tc_1-cmd_1_Ping",
"endTime": 0,
"startTime": 0,
"repeatCount": 0,
"retryCount": 0,
"totalRepeatCount": 0,
"totalRetryCount": 0,
"postConditionExecution": "ON_SUCCESS",
"detailReportRequired": "true",
"summaryReportRequired": "true"
}],
"testCaseList": [
],
"testStatus": "IDLE",
"boundTimeDurationForExecution": 0,
"startTime": 0,
"endTime": 0,
"label": null,
"repeatCount": 0,
"retryCount": 0,
"totalRepeatCount": 0,
"totalRetryCount": 0,
"testCaseId": "dd",
"summaryReportRequired": "false",
"postConditionExecution": "ON_SUCCESS"
}],
"testStatus": "IDLE",
"boundTimeDurationForExecution": 0,
"startTime": 0,
"endTime": 0,
"label": null,
"repeatCount": 0,
"retryCount": 0,
"totalRepeatCount": 0,
"totalRetryCount": 0,
"testCaseId": "b",
"summaryReportRequired": "false",
"postConditionExecution": "ON_SUCCESS"
}
]};
function filter(obj) {
for(let key in obj){
if (obj[key] === "" || obj[key] === null){
delete obj[key];
} else if (Object.prototype.toString.call(obj[key]) === '[object Object]') {
filter(obj[key]);
} else if (Array.isArray(obj[key])) {
if(obj[key].length == 0){
delete obj[key];
}else{
for(let _key in obj[key]){
filter(obj[key][_key]);
}
obj[key] = obj[key].filter(value => Object.keys(value).length !== 0);
if(obj[key].length == 0){
delete obj[key];
}
}
}
}};
filter(sjonObj);
console.log(JSON.stringify(sjonObj, null, 3));
You have 2 options:
You can take the Down from the bad migration and put it in a new migration (you will also need to make the subsequent changes to the model). This is effectively rolling up to a better version.
I use this option on things that have gone to multiple environments.
The other option is to actually run Update-Database –TargetMigration: TheLastGoodMigration
against your deployed database and then delete the migration from your solution. This is kinda the hulk smash alternative and requires this to be performed against any database deployed with the bad version.
Note: to rescaffold the migration you can use Add-Migration [existingname] -Force
. This will however overwrite your existing migration, so be sure to do this only if you have removed the existing migration from the database. This does the same thing as deleting the existing migration file and running add-migration
I use this option while developing.
BY default password will be null, so you have to change password by doing below steps.
connect to mysql
root# mysql
Use mysql
mysql> update user set password=PASSWORD('root') where User='root'; Finally, reload the privileges:
mysql> flush privileges; mysql> quit
Make sure that firefox must install on default place like ->(c:/Program Files (x86)/mozilla firefox OR c:/Program Files/mozilla firefox, note: at the time of firefox installation do not change the path so let it installing in default path) If firefox is installed on some other place then selenium show those error.
If you have set your firefox in Systems(Windows) environment variable then either remove it or update it with new firefox version path.
If you want to use Firefox in any other place then use below code:-
As FirefoxProfile is depricated we need to use FirefoxOptions as below:
New Code:
File pathBinary = new File("C:\\Program Files\\Mozilla Firefox\\firefox.exe");
FirefoxBinary firefoxBinary = new FirefoxBinary(pathBinary);
DesiredCapabilities desired = DesiredCapabilities.firefox();
FirefoxOptions options = new FirefoxOptions();
desired.setCapability(FirefoxOptions.FIREFOX_OPTIONS, options.setBinary(firefoxBinary));
The full working code of above code is as below:
System.setProperty("webdriver.gecko.driver","D:\\Workspace\\demoproject\\src\\lib\\geckodriver.exe");
File pathBinary = new File("C:\\Program Files\\Mozilla Firefox\\firefox.exe");
FirefoxBinary firefoxBinary = new FirefoxBinary(pathBinary);
DesiredCapabilities desired = DesiredCapabilities.firefox();
FirefoxOptions options = new FirefoxOptions();
desired.setCapability(FirefoxOptions.FIREFOX_OPTIONS, options.setBinary(firefoxBinary));
WebDriver driver = new FirefoxDriver(options);
driver.get("https://www.google.co.in/");
Download geckodriver for firefox from below URL:
https://github.com/mozilla/geckodriver/releases
Old Code which will work for old selenium jars versions
File pathBinary = new File("C:\\Program Files (x86)\\Mozilla Firefox\\firefox.exe");
FirefoxBinary firefoxBinary = new FirefoxBinary(pathBinary);
FirefoxProfile firefoxProfile = new FirefoxProfile();
WebDriver driver = new FirefoxDriver(firefoxBinary, firefoxProfile);
How about this?
/^[a-zA-ZÀ-ÖØ-öø-ÿ]+$/
The problem you are most likely having is that there is a link somewhere in the page to an anchor that does not exist. For instance, let's say you have the following:
<a href="#examples">Skip to examples</a>
There has to be an element in the page with that id, example:
<div id="examples">Here are the examples</div>
So make sure that each one of the links are matched inside the page with it's corresponding anchor.
You can get this if you ONLY configure https
as a site binding inside IIS.
You need to add http(80)
as well as https(443)
- at least I did :-)
We faced the same issue and fixed it. Below is the reason and solution.
Problem
When the connection pool mechanism is used, the application server (in our case, it is JBOSS) creates connections according to the min-connection
parameter. If you have 10 applications running, and each has a min-connection
of 10, then a total of 100 sessions will be created in the database. Also, in every database, there is a max-session
parameter, if your total number of connections crosses that border, then you will get Got minus one from a read call
.
FYI: Use the query below to see your total number of sessions:
SELECT username, count(username) FROM v$session
WHERE username IS NOT NULL group by username
Solution: With the help of our DBA, we increased that max-session
parameter, so that all our application min-connection
can accommodate.
If all steps (in existing answers) dont work , Just close eclipse and again open eclipse .
Right click on eclipse project go to build path and then configure build path you will see jre and maven will be unchecked check both of them and your error will be solved
I'll add this in here as my problem had something todo with my virtualenv
:
I hadn't activated my virtual environment and was trying to install my requirements, this ultimately led to my install failing and throwing this error message.
So make sure you activate your virtualenv!
reinterpret_cast
cannot be used for this conversion, the code will not compile. According to C++03 standard section 5.2.10-1:
Conversions that can be performed explicitly using reinterpret_cast are listed below. No other conversion can be performed explicitly using reinterpret_cast.
This conversion is not listed in that section. Even this is invalid:
long l = reinterpret_cast<long>(i)
static_cast
is the one which has to be used here. See this and this SO questions.
On Java 1.8 default TLS protocol is v1.2. On Java 1.6 and 1.7 default is obsoleted TLS1.0. I get this error on Java 1.8, because url use old TLS1.0 (like Your - You see ClientHello, TLSv1
). To resolve this error You need to use override defaults for Java 1.8.
System.setProperty("https.protocols", "TLSv1");
More info on the Oracle blog.
I'm afraid your posted example is not working, since X and Y aren't defined. So instead of pcolormesh
let's use imshow
:
import numpy as np
import matplotlib.pyplot as plt
H = np.array([[1, 2, 3, 4],
[5, 6, 7, 8],
[9, 10, 11, 12],
[13, 14, 15, 16]]) # added some commas and array creation code
fig = plt.figure(figsize=(6, 3.2))
ax = fig.add_subplot(111)
ax.set_title('colorMap')
plt.imshow(H)
ax.set_aspect('equal')
cax = fig.add_axes([0.12, 0.1, 0.78, 0.8])
cax.get_xaxis().set_visible(False)
cax.get_yaxis().set_visible(False)
cax.patch.set_alpha(0)
cax.set_frame_on(False)
plt.colorbar(orientation='vertical')
plt.show()
When, if you lose your daemon mysql in mac OSx but is present in other path for exemple in private/var do the following command
1)
ln -s /private/var/mysql/mysql.sock /tmp/mysql.sock
2) restart your connexion to mysql with :
mysql -u username -p -h host databasename
If you are reencoding in your ffmpeg command line, that may be the reason why it is CPU intensive. You need to simply copy the streams to the single container. Since I do not have your command line I cannot suggest a specific improvement here. Your acodec and vcodec should be set to copy is all I can say.
EDIT: On seeing your command line and given you have already tried it, this is for the benefit of others who come across the same question. The command:
ffmpeg -i rtsp://@192.168.241.1:62156 -acodec copy -vcodec copy c:/abc.mp4
will not do transcoding and dump the file for you in an mp4. Of course this is assuming the streamed contents are compatible with an mp4 (which in all probability they are).
Since Chrome 57 you have the headless argument:
var options = new ChromeOptions();
options.AddArguments("headless");
using (IWebDriver driver = new ChromeDriver(options))
{
// The rest of your tests
}
The headless mode of Chrome performs 30.97% better than the UI version. The other headless driver PhantomJS delivers 34.92% better than the Chrome's headless mode.
PhantomJSDriver
using (IWebDriver driver = new PhantomJSDriver())
{
// The rest of your test
}
The headless mode of Mozilla Firefox performs 3.68% better than the UI version. This is a disappointment since the Chrome's headless mode achieves > 30% better time than the UI one. The other headless driver PhantomJS delivers 34.92% better than the Chrome's headless mode. Surprisingly for me, the Edge browser beats all of them.
var options = new FirefoxOptions();
options.AddArguments("--headless");
{
// The rest of your test
}
This is available from Firefox 57+
The headless mode of Mozilla Firefox performs 3.68% better than the UI version. This is a disappointment since the Chrome's headless mode achieves > 30% better time than the UI one. The other headless driver PhantomJS delivers 34.92% better than the Chrome's headless mode. Surprisingly for me, the Edge browser beats all of them.
Note: PhantomJS is not maintained any more!
value = value.setScale(2, RoundingMode.CEILING)
Do it like this:
SSLSocket socket = (SSLSocket) sslFactory.createSocket(host, port);
socket.setEnabledProtocols(new String[]{"SSLv3", "TLSv1"});
Using file extension and getimagesize
function to detect if uploaded file has right format is just the entry level check and it can simply bypass by uploading a file with true extension and some byte of an image header but wrong content.
for being secure and safe you may make thumbnail/resize (even with original image sizes) the uploaded picture and save this version instead the uploaded one.
Also its possible to get uploaded file content and search it for special character like <?php
to find the file is image or not.
It seems like your Maven is unable to connect to Maven repository at http://repo1.maven.org/maven2.
If you are using proxy and can access the link with browser the same settings need to be applied to Spring Source Tool Suite (if you are running within suite) or Maven.
For Maven proxy setting create a settings.xml
in the .m2
directory with following details
<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0
http://maven.apache.org/xsd/settings-1.0.0.xsd">
<proxies>
<proxy>
<active>true</active>
<protocol>http</protocol>
<host>PROXY</host>
<port>3120</port>
<nonProxyHosts>maven</nonProxyHosts>
</proxy>
</proxies>
</settings>
If you are not using proxy and can access the link with browser, remove any proxy settings described above.
This ERROR can happen when you use Mockito to mock final classes.
Consider using Mockito inline or Powermock instead.
It looks like you are trying to connect using TLSv1.2, which isn't widely implemented on servers. Does your destination support tls1.2?
No need to activate or selection sheets or cells if you're using VBA. You can access it all directly. The code:
Dim rng As Range
For Each rng In Sheets("Feuil2").Range("A1:A333")
Sheets("Classeur2.csv").Cells(rng.Value, rng.Offset(, 1).Value) = "1"
Next rng
is producing the same result as Joe's code.
If you need to switch sheets for some reasons, use Application.ScreenUpdating = False
at the beginning of your macro (and Application.ScreenUpdating=True
at the end). This will remove the screenflickering - and speed up the execution.
As other answers have stated, the ->
symbol is used as part of function annotations. In more recent versions of Python >= 3.5
, though, it has a defined meaning.
PEP 3107 -- Function Annotations described the specification, defining the grammar changes, the existence of func.__annotations__
in which they are stored and, the fact that it's use case is still open.
In Python 3.5
though, PEP 484 -- Type Hints attaches a single meaning to this: ->
is used to indicate the type that the function returns. It also seems like this will be enforced in future versions as described in What about existing uses of annotations:
The fastest conceivable scheme would introduce silent deprecation of non-type-hint annotations in 3.6, full deprecation in 3.7, and declare type hints as the only allowed use of annotations in Python 3.8.
(Emphasis mine)
This hasn't been actually implemented as of 3.6
as far as I can tell so it might get bumped to future versions.
According to this, the example you've supplied:
def f(x) -> 123:
return x
will be forbidden in the future (and in current versions will be confusing), it would need to be changed to:
def f(x) -> int:
return x
for it to effectively describe that function f
returns an object of type int
.
The annotations are not used in any way by Python itself, it pretty much populates and ignores them. It's up to 3rd party libraries to work with them.
i would recommend Modern UI for WPF .
It has a very active maintainer it is awesome and free!
I'm currently porting some projects to MUI, first (and meanwhile second) impression is just wow!
To see MUI in action you could download XAML Spy which is based on MUI.
EDIT: Using Modern UI for WPF a few months and i'm loving it!
When using sonar-scanner for swift, use sonar.coverage.exclusions in your sonar-project.properties to exclude any file for only code coverage. If you want to exclude files from analysis as well, you can use sonar.exclusions. This has worked for me in swift
sonar.coverage.exclusions=**/*ViewController.swift,**/*Cell.swift,**/*View.swift
Runscope is a cloud based service that can monitor Web APIs using a set of tests. Tests can be , scheduled and/or run via parameterized web hooks. Tests can also be executed from data centers around the world to ensure response times are acceptable to global client base.
The free tier of Runscope supports up to 10K requests per month.
Disclaimer: I am a developer advocate for Runscope.
Prepare MANIFEST.MF
file with the following content
Manifest-Version: 1.0
Main-Class: org.testng.TestNG
Pack all test and dependency classes in the same jar, say tests.jar
jar cmf MANIFEST.MF tests.jar -C folder-with-classes/ .
Notice trailing ".", replace folder-with-classes/
with proper folder name or path.
Create testng.xml
with content like below
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd" >
<suite name="Tests" verbose="5">
<test name="Test1">
<classes>
<class name="com.example.yourcompany.qa.Test1"/>
</classes>
</test>
</suite>
Replace com.example.yourcompany.qa.Test1
with path to your Test class.
Run your tests
java -jar tests.jar testng.xml
Kind of Inception going on here.
for (PlaylistadMap playlistadMap : playlistadMaps) {
PlayList innerPlayList = playlistadMap.getPlayList();
for (Iterator<PlaylistadMap> iterator = innerPlayList.getPlaylistadMaps().iterator(); iterator.hasNext();) {
PlaylistadMap innerPlaylistadMap = iterator.next();
if (innerPlaylistadMap.equals(PlaylistadMap)) {
iterator.remove();
session.delete(innerPlaylistadMap);
}
}
}
Put the text file in the assets directory. If there isnt an assets dir create one in the root of the project. Then you can use Context.getAssets().open("BlockForTest.txt");
to open a stream to this file.
None of the above worked for me on Ubuntu 12.04 LTS (Precise Pangolin), and here's how I fixed it in the end:
Download ez_setup.py from download setuptools (see "Installation Instructions" section) then:
$ sudo python ez_setup.py
I hope it saves someone some time.
Adding this here as it might help someone. I was having problems with Android showing the popup and invalid certificate error.
We have a Comodo Extended Validation certificate and we received the zip file that contained 4 files:
I concatenated them together all on one line like so:
cat www_mydomain_com.crt COMODORSAExtendedValidationSecureServerCA.crt COMODORSAAddTrustCA.crt AddTrustExternalCARoot.crt >www.mydomain.com.ev-ssl-bundle.crt
Then I used that bundle file as my ssl_certificate_key
in nginx. That's it, works now.
Inspired by this gist: https://gist.github.com/ipedrazas/6d6c31144636d586dcc3
To keep the aspect ratio, use background-size: 100% auto;
div {
background-image: url('image.jpg');
background-size: 100% auto;
width: 150px;
height: 300px;
}
In my case, I was using simple impersonation and the impersonation user had trouble accessing one of the project assemblies. My solution:
Modify the security properties of the assembly file.
a) Add the user account you're using for impersonation to the Group and user names.
b) Give that user account full access to the assembly file.
For spring :
File inputFile = new ClassPathResource("\\chrome\\chromedriver.exe").getFile();
System.setProperty("webdriver.chrome.driver",inputFile.getCanonicalPath());
Basically I want to track the moving average of an ongoing stream of a stream of floating point numbers using the most recent 1000 numbers as a data sample.
Note that the below updates the total_
as elements as added/replaced, avoiding costly O(N) traversal to calculate the sum - needed for the average - on demand.
template <typename T, typename Total, size_t N>
class Moving_Average
{
public:
void operator()(T sample)
{
if (num_samples_ < N)
{
samples_[num_samples_++] = sample;
total_ += sample;
}
else
{
T& oldest = samples_[num_samples_++ % N];
total_ += sample - oldest;
oldest = sample;
}
}
operator double() const { return total_ / std::min(num_samples_, N); }
private:
T samples_[N];
size_t num_samples_{0};
Total total_{0};
};
Total
is made a different parameter from T
to support e.g. using a long long
when totalling 1000 long
s, an int
for char
s, or a double
to total float
s.
Issues
This is a bit flawed in that num_samples_
could conceptually wrap back to 0, but it's hard to imagine anyone having 2^64 samples: if concerned, use an extra bool data member to record when the container is first filled while cycling num_samples_
around the array (best then renamed something innocuous like "pos
").
Another issue is inherent with floating point precision, and can be illustrated with a simple scenario for T=double, N=2: we start with total_ = 0
, then inject samples...
1E17, we execute total_ += 1E17
, so total_ == 1E17
, then inject
1, we execute total += 1
, but total_ == 1E17
still, as the "1" is too insignificant to change the 64-bit double
representation of a number as large as 1E17, then we inject
2, we execute total += 2 - 1E17
, in which 2 - 1E17
is evaluated first and yields -1E17
as the 2 is lost to imprecision/insignificance, so to our total of 1E17 we add -1E17 and total_
becomes 0, despite current samples of 1 and 2 for which we'd want total_
to be 3. Our moving average will calculate 0 instead of 1.5. As we add another sample, we'll subtract the "oldest" 1 from total_
despite it never having been properly incorporated therein; our total_
and moving averages are likely to remain wrong.
You could add code that stores the highest recent total_
and if the current total_
is too small a fraction of that (a template parameter could provide a multiplicative threshold), you recalculate the total_
from all the samples in the samples_
array (and set highest_recent_total_
to the new total_
), but I'll leave that to the reader who cares sufficiently.
For WHM and cPanel, some versions need to explicty set mysqli to build.
Using WHM, under CENTOS 6.9 xen pv [dc] v68.0.27, one needed to rebuild Apache/PHP by looking at all options and select mysqli to build. The default was to build the deprecated mysql. Now the depreciation messages are gone and one is ready for future MySQL upgrades.
Once after we build the jar will have the resource files under BOOT-INF/classes or target/classes folder, which is in classpath, use the below method and pass the file under the src/main/resources as method call getAbsolutePath("certs/uat_staging_private.ppk"), even we can place this method in Utility class and the calling Thread instance will be taken to load the ClassLoader to get the resource from class path.
public String getAbsolutePath(String fileName) throws IOException {
return Thread.currentThread().getContextClassLoader().getResource(fileName).getFile();
}
we can add the below tag to tag in pom.xml to include these resource files to build target/classes folder
<resources>
<resource>
<directory>src/main/resources</directory>
<includes>
<include>**/*.properties</include>
<include>**/*.ppk</include>
</includes>
</resource>
</resources>
I found a more straight forward solution from @DK comment in this question, the solution is written by Alex and described here with source, To make customized window:
Here you go:
#!/bin/bash
#
# By Zibri (2019)
#
# Usage: gitclean username password giturl
#
gitclean ()
{
odir=$PWD;
if [ "$#" -ne 3 ]; then
echo "Usage: gitclean username password giturl";
return 1;
fi;
temp=$(mktemp -d 2>/dev/null /dev/shm/git.XXX || mktemp -d 2>/dev/null /tmp/git.XXX);
cd "$temp";
url=$(echo "$3" |sed -e "s/[^/]*\/\/\([^@]*@\)\?\.*/\1/");
git clone "https://$1:$2@$url" && {
cd *;
for BR in "$(git branch|tr " " "\n"|grep -v '*')";
do
echo working on branch $BR;
git checkout $BR;
git checkout --orphan $(basename "$temp"|tr -d .);
git add -A;
git commit -m "Initial Commit" && {
git branch -D $BR;
git branch -m $BR;
git push -f origin $BR;
git gc --aggressive --prune=all
};
done
};
cd $odir;
rm -rf "$temp"
}
Also hosted here: https://gist.github.com/Zibri/76614988478a076bbe105545a16ee743
When I got an error saying "archive for required library could not be read," I solved it by removing the JARS in question from the Build Path of the project, and then using "Add External Jars" to add them back in again (navigating to the same folder that they were in). Using the "Add Jars" button wouldn't work, and the error would still be there. But using "Add External Jars" worked.
Eclipse by default does not know about your external Maven installation and uses the embedded one. Therefore in order for Eclipse to use your global settings you need to set it in menu Settings ? Maven ? Installations.
I would like to suggest another framework: Apache Pivot http://pivot.apache.org/.
I tried it briefly and was impressed by what it can offer as an RIA (Rich Internet Application) framework ala Flash.
It renders UI using Java2D, thus minimizing the impact of (IMO, bloated) legacies of Swing and AWT.
To write it with a while loop you can do:
ls -f /var | while read -r file; do cmd $file; done
The primary disadvantage of this is that cmd is run in a subshell, which causes some difficulty if you are trying to set variables. The main advantages are that the shell does not need to load all of the filenames into memory, and there is no globbing. When you have a lot of files in the directory, those advantages are important (that's why I use -f on ls; in a large directory ls itself can take several tens of seconds to run and -f speeds that up appreciably. In such cases 'for file in /var/*' will likely fail with a glob error.)
You can use the reset()
method:
$('#myform')[0].reset();
or without jQuery:
document.getElementById('myform').reset();
where myform
is the id of the form containing the elements you want to be cleared.
You could also use the :input
selector if the fields are not inside a form:
$(':input').val('');
This solution only for chrome browser. I am not sure about other browser.
This seems to be fixed in Indigo Eclipse now, there's a video showing someone install android eclipse on youtube?
This isn't an answer to the tagline question, but it is an answer to the problems mentioned in the body of the question. Instead of using @Before or @After, look into using @org.junit.Rule because it gives you more flexibility. ExternalResource (as of 4.7) is the rule you will be most interested in if you are managing connections. Also, If you want guaranteed execution order of your rules use a RuleChain (as of 4.10). I believe all of these were available when this question was asked. Code example below is copied from ExternalResource's javadocs.
public static class UsesExternalResource {
Server myServer= new Server();
@Rule
public ExternalResource resource= new ExternalResource() {
@Override
protected void before() throws Throwable {
myServer.connect();
};
@Override
protected void after() {
myServer.disconnect();
};
};
@Test
public void testFoo() {
new Client().run(myServer);
}
}
Easiest solution to force UTF-8 encoding in Spring MVC returning String:
In @RequestMapping
, use:
produces = MediaType.APPLICATION_JSON_VALUE + "; charset=utf-8"
I had this problem "This could be due to the service endpoint binding not using the HTTP protocol" and the WCF service would shut down (in a development machine)
I figured out: in my case, the problem was because of Enums,
I solved using this
[DataContract]
[Flags]
public enum Fruits
{
[EnumMember]
APPLE = 1,
[EnumMember]
BALL = 2,
[EnumMember]
ORANGE = 3
}
I had to decorate my Enums with DataContract, Flags and all each of the enum member with EnumMember attributes.
I solved this after looking at this msdn Reference:
You need to make the changes in the binding configuration (in the app.config file) on the SERVER and the CLIENT, or it will not take effect.
<system.serviceModel>
<bindings>
<basicHttpBinding>
<binding maxReceivedMessageSize="2147483647 " max...=... />
</basicHttpBinding>
</bindings>
</system.serviceModel>
You may want to examine the configuration for your service and make sure that everything is ok. You can navigate to web service via the browser to see if the schema will be rendered on the browser.
You may also want to examine the credentials used to call the service.
sleep 999&
t=$!
sleep 10
kill $t
One more thing node provides is the ability to create multiple v8 instanes of node using node's child process( childProcess.fork() each requiring 10mb memory as per docs) on the fly, thus not affecting the main process running the server. So offloading a background job that requires huge server load becomes a child's play and we can easily kill them as and when needed.
I've been using node a lot and in most of the apps we build, require server connections at the same time thus a heavy network traffic. Frameworks like Express.js and the new Koajs (which removed callback hell) have made working on node even more easier.
Very interesting question. I think it's mainly a semantic meaning, and may also be due to historical reasons.
Although in current Android Activity and Service implementations, getApplication()
and getApplicationContext()
return the same object, there is no guarantee that this will always be the case (for example, in a specific vendor implementation).
So if you want the Application class you registered in the Manifest, you should never call getApplicationContext()
and cast it to your application, because it may not be the application instance (which you obviously experienced with the test framework).
Why does getApplicationContext()
exist in the first place ?
getApplication()
is only available in the Activity class and the Service class, whereas getApplicationContext()
is declared in the Context class.
That actually means one thing : when writing code in a broadcast receiver, which is not a context but is given a context in its onReceive method, you can only call getApplicationContext()
. Which also means that you are not guaranteed to have access to your application in a BroadcastReceiver.
When looking at the Android code, you see that when attached, an activity receives a base context and an application, and those are different parameters. getApplicationContext()
delegates it's call to baseContext.getApplicationContext()
.
One more thing : the documentation says that it most cases, you shouldn't need to subclass Application:
There is normally no need to subclass
Application
. In most situation, static singletons can provide the same functionality in a more modular way. If your singleton needs a global context (for example to register broadcast receivers), the function to retrieve it can be given aContext
which internally usesContext.getApplicationContext()
when first constructing the singleton.
I know this is not an exact and precise answer, but still, does that answer your question?
For me, the below lines in the log4j.properties
file cleaned up all the mess that came from HttpClient logging... Hurray!!! :)
log4j.logger.org.apache.http.headers=ERROR
log4j.logger.org.apache.http.wire=ERROR
log4j.logger.org.apache.http.impl.conn.PoolingHttpClientConnectionManager=ERROR
log4j.logger.org.apache.http.impl.conn.DefaultManagedHttpClientConnection=ERROR
log4j.logger.org.apache.http.conn.ssl.SSLConnectionSocketFactory=ERROR
log4j.logger.org.springframework.web.client.RestTemplate=ERROR
log4j.logger.org.apache.http.client.protocol.RequestAddCookies=ERROR
log4j.logger.org.apache.http.client.protocol.RequestAuthCache=ERROR
log4j.logger.org.apache.http.impl.execchain.MainClientExec=ERROR
log4j.logger.org.apache.http.impl.conn.DefaultHttpClientConnectionOperator=ERROR
Since none of these dealt with real world financial numbers in excel and word docs that I needed to find, here is my variation. It handles ints, floats, negative numbers, currency numbers (because it doesn't reply on split), and has the option to drop the decimal part and just return ints, or return everything.
It also handles Indian Laks number system where commas appear irregularly, not every 3 numbers apart.
It does not handle scientific notation or negative numbers put inside parentheses in budgets -- will appear positive.
It also does not extract dates. There are better ways for finding dates in strings.
import re
def find_numbers(string, ints=True):
numexp = re.compile(r'[-]?\d[\d,]*[\.]?[\d{2}]*') #optional - in front
numbers = numexp.findall(string)
numbers = [x.replace(',','') for x in numbers]
if ints is True:
return [int(x.replace(',','').split('.')[0]) for x in numbers]
else:
return numbers
I know that is more code but you can also do:
try
do something
@fail Error("should send a Exception")
catch e
expect(e.name).toBe "BLA_ERROR"
expect(e.message).toBe 'Message'
In order to resolve java.lang.OutOfMemoryError: Java heap space in Maven, try to configure below configuration in pom
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>${maven-surefire-plugin.version}</version>
<configuration>
<verbose>true</verbose>
<fork>true</fork>
<argLine>-XX:MaxPermSize=500M</argLine>
</configuration>
</plugin>
In combination with lists, dicts and sets, there are also another interesting python objects, OrderedDicts.
Ordered dictionaries are just like regular dictionaries but they remember the order that items were inserted. When iterating over an ordered dictionary, the items are returned in the order their keys were first added.
OrderedDicts could be useful when you need to preserve the order of the keys, for example working with documents: It's common to need the vector representation of all terms in a document. So using OrderedDicts you can efficiently verify if a term has been read before, add terms, extract terms, and after all the manipulations you can extract the ordered vector representation of them.
I had a similar problem, I ran my tests disabling the reuse of forks like this
mvn clean test -DreuseForks=false
and the problem disappeared. The downside is that the overall test execution time will be longer, that's why you may want to do this from the command line only if necessary
file_name=test.log
# set first K lines:
K=1000
# line count (N):
N=$(wc -l < $file_name)
# length of the bottom file:
L=$(( $N - $K ))
# create the top of file:
head -n $K $file_name > top_$file_name
# create bottom of file:
tail -n $L $file_name > bottom_$file_name
Also, on second thought, split will work in your case, since the first split is larger than the second. Split puts the balance of the input into the last split, so
split -l 300000 file_name
will output xaa
with 300k lines and xab
with 100k lines, for an input with 400k lines.
To address specific scenario in question:
@Test
public void Test1() {
}
@Test (dependsOnMethods={"Test1"})
public void Test2() {
}
@Test (dependsOnMethods={"Test2"})
public void Test3() {
}
Class.isAssignableFrom()
- works for interfaces as well. If you don't want that, you'll have to call getSuperclass()
and test until you reach Object
.
mysqli is the enhanced version of mysql.
PDO extension defines a lightweight, consistent interface for accessing databases in PHP. Each database driver that implements the PDO interface can expose database-specific features as regular extension functions.
MAKE THIS YOUR config.js file code
CKEDITOR.editorConfig = function( config ) {
// config.enterMode = 2; //disabled <p> completely
config.enterMode = CKEDITOR.ENTER_BR // pressing the ENTER KEY input <br/>
config.shiftEnterMode = CKEDITOR.ENTER_P; //pressing the SHIFT + ENTER KEYS input <p>
config.autoParagraph = false; // stops automatic insertion of <p> on focus
};
This is now possible directly from unittest: unittest.TestLoader.discover.
import unittest
loader = unittest.TestLoader()
start_dir = 'path/to/your/test/files'
suite = loader.discover(start_dir)
runner = unittest.TextTestRunner()
runner.run(suite)
Additionally to the answer of @tkruse and @Yishai:
I do this way to conditionally skip test methods especially for Parameterized
tests, if a test method should only run for some test data records.
public class MyTest {
// get current test method
@Rule public TestName testName = new TestName();
@Before
public void setUp() {
org.junit.Assume.assumeTrue(new Function<String, Boolean>() {
@Override
public Boolean apply(String testMethod) {
if (testMethod.startsWith("testMyMethod")) {
return <some condition>;
}
return true;
}
}.apply(testName.getMethodName()));
... continue setup ...
}
}
The best way is to change any setting you want in your code.
Check out the below example:
using(WCFServiceClient client = new WCFServiceClient ())
{
client.Endpoint.Binding.SendTimeout = new TimeSpan(0, 1, 30);
}
Try the Apache Commons HttpClient library instead of trying to roll your own: http://hc.apache.org/httpclient-3.x/index.html
From their sample code:
HttpClient httpclient = new HttpClient();
httpclient.getHostConfiguration().setProxy("myproxyhost", 8080);
/* Optional if authentication is required.
httpclient.getState().setProxyCredentials("my-proxy-realm", " myproxyhost",
new UsernamePasswordCredentials("my-proxy-username", "my-proxy-password"));
*/
PostMethod post = new PostMethod("https://someurl");
NameValuePair[] data = {
new NameValuePair("user", "joe"),
new NameValuePair("password", "bloggs")
};
post.setRequestBody(data);
// execute method and handle any error responses.
// ...
InputStream in = post.getResponseBodyAsStream();
// handle response.
/* Example for a GET reqeust
GetMethod httpget = new GetMethod("https://someurl");
try {
httpclient.executeMethod(httpget);
System.out.println(httpget.getStatusLine());
} finally {
httpget.releaseConnection();
}
*/
I've also had this problem from a service reference that was out of date, even with the server & client on the same machine. Running 'Update Service Reference' will generally fix it if this is the issue.
for(var i = array.length; i--; )
is not much faster. But when you replace array.length
with super_puper_function()
, that may be significantly faster (since it's called in every iteration). That's the difference.
If you are going to change it in 2014, you don't need to think about optimization. If you are going to change it with "Search & Replace", you don't need to think about optimization. If you have no time, you don't need to think about optimization. But now, you've got time to think about it.
P.S.: i--
is not faster than i++
.
Functions are first-class variables in Python. You can declare a function, pass it around as an object, and overwrite it:
def func(): print "hello"
def another_func(f): f()
another_func(func)
def func2(): print "goodbye"
func = func2
This is a fundamental feature of modern scripting languages. JavaScript and Lua do this, too. Ruby doesn't treat functions this way; naming a function calls it.
Of course, there are ways to do these things in Ruby, but they're not first-class operations. For example, you can wrap a function with Proc.new to treat it as a variable--but then it's no longer a function; it's an object with a "call" method.
Ruby functions aren't first-class objects. Functions must be wrapped in an object to pass them around; the resulting object can't be treated like a function. Functions can't be assigned in a first-class manner; instead, a function in its container object must be called to modify them.
def func; p "Hello" end
def another_func(f); method(f)[] end
another_func(:func) # => "Hello"
def func2; print "Goodbye!"
self.class.send(:define_method, :func, method(:func2))
func # => "Goodbye!"
method(:func).owner # => Object
func # => "Goodbye!"
self.func # => "Goodbye!"
Keytool in Java 6 does have this capability: Importing private keys into a Java keystore using keytool
Here are the basic details from that post.
Convert the existing cert to a PKCS12 using OpenSSL. A password is required when asked or the 2nd step will complain.
openssl pkcs12 -export -in [my_certificate.crt] -inkey [my_key.key] -out [keystore.p12] -name [new_alias] -CAfile [my_ca_bundle.crt] -caname root
Convert the PKCS12 to a Java Keystore File.
keytool -importkeystore -deststorepass [new_keystore_pass] -destkeypass [new_key_pass] -destkeystore [keystore.jks] -srckeystore [keystore.p12] -srcstoretype PKCS12 -srcstorepass [pass_used_in_p12_keystore] -alias [alias_used_in_p12_keystore]
I generally just put a log4j.xml file into src/test/resources and let log4j find it by itself: no code required, the default log4j initialisation will pick it up. (I typically want to set my own loggers to 'DEBUG' anyway)
The 3-Heights™ PDF Validator Online Tool provides good feedback for different PDF/A conformance levels and versions.
I think that they are often not "versus", but you can combine them. I also think that oftentimes, the words you mention are just buzzwords. There are few people who actually know what "object-oriented" means, even if they are the fiercest evangelists of it.
try installing sudo lib32z1
sudo apt-get install lib32z1
An alternative to NCover can be PartCover, is an open source code coverage tool for .NET very similar to NCover, it includes a console application, a GUI coverage browser, and XSL transforms for use in CruiseControl.NET.
It is a very interesting product.
OpenCover has replaced PartCover.
I use static classes as a means to define "extra functionality" that an object of a given type could use under a specific context. Usually they turn out to be utility classes.
Other than that, I think that "Use a static class as a unit of organization for methods not associated with particular objects." describe quite well their intended usage.
Using a dict wouldn't like double your memory usage unless the objects you're storing are really tiny, since the values are only pointers to the actual objects:
>>> a = 'foo'
>>> b = [a]
>>> c = [a]
>>> b[0] is c[0]
True
In that example, 'foo' is only stored once. Does that make a difference for you? And exactly how many items are we talking about anyway?
Could this help: http://users.skynet.be/pascalbotte/rcx-ws-doc/python.htm#SOAPPY
I found it by searching for wsdl
and python
, with the rational being, that you would need a wsdl description of a SOAP server to do any useful client wrappers....
Another solution I have found to a similar error but the same error message is to increase the number of service handlers found. (My instance of this error was caused by too many connections in the Weblogic Portal Connection pools.)
SQL*Plus
and login as SYSTEM
. You should know what password you’ve used during the installation of Oracle DB XE.alter system set processes=150 scope=spfile;
in SQL*PlusFrom here:
As Kaboing mentioned, MAXDOP(n)
actually controls the number of CPU cores that are being used in the query processor.
On a completely idle system, SQL Server will attempt to pull the tables into memory as quickly as possible and join between them in memory. It could be that, in your case, it's best to do this with a single CPU. This might have the same effect as using OPTION (FORCE ORDER)
which forces the query optimizer to use the order of joins that you have specified. IN some cases, I have seen OPTION (FORCE PLAN)
reduce a query from 26 seconds to 1 second of execution time.
Books Online goes on to say that possible values for MAXDOP
are:
0 - Uses the actual number of available CPUs depending on the current system workload. This is the default value and recommended setting.
1 - Suppresses parallel plan generation. The operation will be executed serially.
2-64 - Limits the number of processors to the specified value. Fewer processors may be used depending on the current workload. If a value larger than the number of available CPUs is specified, the actual number of available CPUs is used.
I'm not sure what the best usage of MAXDOP
is, however I would take a guess and say that if you have a table with 8 partitions on it, you would want to specify MAXDOP(8)
due to I/O limitations, but I could be wrong.
Here are a few quick links I found about MAXDOP
:
It might be that
hsql://localhost
can't be resolved to a file. Look at the sample program here:
See if you can get that working first, and then see if you can take that configuration information and use it in the Spring bean configuration.
Good luck!
depending on you application, i suggest using FLOAT(9,6)
spatial keys will give you more features, but in by production benchmarks the floats are much faster than the spatial keys. (0,01 VS 0,001 in AVG)
A colleague of mine suggested the following: you can use a custom RunListener and implement the testRunFinished() method: http://junit.sourceforge.net/javadoc/org/junit/runner/notification/RunListener.html#testRunFinished(org.junit.runner.Result)
To register the RunListener just configure the surefire plugin as follows: http://maven.apache.org/surefire/maven-surefire-plugin/examples/junit.html section "Using custom listeners and reporters"
This configuration should also be picked by the failsafe plugin. This solution is great because you don't have to specify Suites, lookup test classes or any of this stuff - it lets Maven to do its magic, waiting for all tests to finish.
Yet another tree structure:
public class TreeNode<T> : IEnumerable<TreeNode<T>>
{
public T Data { get; set; }
public TreeNode<T> Parent { get; set; }
public ICollection<TreeNode<T>> Children { get; set; }
public TreeNode(T data)
{
this.Data = data;
this.Children = new LinkedList<TreeNode<T>>();
}
public TreeNode<T> AddChild(T child)
{
TreeNode<T> childNode = new TreeNode<T>(child) { Parent = this };
this.Children.Add(childNode);
return childNode;
}
... // for iterator details see below link
}
Sample usage:
TreeNode<string> root = new TreeNode<string>("root");
{
TreeNode<string> node0 = root.AddChild("node0");
TreeNode<string> node1 = root.AddChild("node1");
TreeNode<string> node2 = root.AddChild("node2");
{
TreeNode<string> node20 = node2.AddChild(null);
TreeNode<string> node21 = node2.AddChild("node21");
{
TreeNode<string> node210 = node21.AddChild("node210");
TreeNode<string> node211 = node21.AddChild("node211");
}
}
TreeNode<string> node3 = root.AddChild("node3");
{
TreeNode<string> node30 = node3.AddChild("node30");
}
}
BONUS
See fully-fledged tree with:
VistaDB is the only alternative if you going to run your website at shared hosting (almost all of them won't let you run your websites under Full Trust mode) and also if you need simple x-copy deployment enabled website.
After the advice here, I have devised the following function in VB which creates passable, although not always perfect (if a company name and a suite line are given, it combines the suite and city) usable data. Please feel free to comment/refactor/yell at me for breaking one of my own rules, etc.:
Public Function parseAddress(ByVal input As String) As Collection
input = input.Replace(",", "")
input = input.Replace(" ", " ")
Dim splitString() As String = Split(input)
Dim streetMarker() As String = New String() {"street", "st", "st.", "avenue", "ave", "ave.", "blvd", "blvd.", "highway", "hwy", "hwy.", "box", "road", "rd", "rd.", "lane", "ln", "ln.", "circle", "circ", "circ.", "court", "ct", "ct."}
Dim address1 As String
Dim address2 As String = ""
Dim city As String
Dim state As String
Dim zip As String
Dim streetMarkerIndex As Integer
zip = splitString(splitString.Length - 1).ToString()
state = splitString(splitString.Length - 2).ToString()
streetMarkerIndex = getLastIndexOf(splitString, streetMarker) + 1
Dim sb As New StringBuilder
For counter As Integer = streetMarkerIndex To splitString.Length - 3
sb.Append(splitString(counter) + " ")
Next counter
city = RTrim(sb.ToString())
Dim addressIndex As Integer = 0
For counter As Integer = 0 To streetMarkerIndex
If IsNumeric(splitString(counter)) _
Or splitString(counter).ToString.ToLower = "po" _
Or splitString(counter).ToString().ToLower().Replace(".", "") = "po" Then
addressIndex = counter
Exit For
End If
Next counter
sb = New StringBuilder
For counter As Integer = addressIndex To streetMarkerIndex - 1
sb.Append(splitString(counter) + " ")
Next counter
address1 = RTrim(sb.ToString())
sb = New StringBuilder
If addressIndex = 0 Then
If splitString(splitString.Length - 2).ToString() <> splitString(streetMarkerIndex + 1) Then
For counter As Integer = streetMarkerIndex To splitString.Length - 2
sb.Append(splitString(counter) + " ")
Next counter
End If
Else
For counter As Integer = 0 To addressIndex - 1
sb.Append(splitString(counter) + " ")
Next counter
End If
address2 = RTrim(sb.ToString())
Dim output As New Collection
output.Add(address1, "Address1")
output.Add(address2, "Address2")
output.Add(city, "City")
output.Add(state, "State")
output.Add(zip, "Zip")
Return output
End Function
Private Function getLastIndexOf(ByVal sArray As String(), ByVal checkArray As String()) As Integer
Dim sourceIndex As Integer = 0
Dim outputIndex As Integer = 0
For Each item As String In checkArray
For Each source As String In sArray
If source.ToLower = item.ToLower Then
outputIndex = sourceIndex
If item.ToLower = "box" Then
outputIndex = outputIndex + 1
End If
End If
sourceIndex = sourceIndex + 1
Next
sourceIndex = 0
Next
Return outputIndex
End Function
Passing the parseAddress
function "A. P. Croll & Son 2299 Lewes-Georgetown Hwy, Georgetown, DE 19947" returns:
2299 Lewes-Georgetown Hwy A. P. Croll & Son Georgetown DE 19947
You should just add this line:
recyclerView.suppressLayout(true)
If you have a URL, you can pass url.toString() into this method. First decode, to avoid double encoding (for example, encoding a space results in %20 and encoding a percent sign results in %25, so double encoding will turn a space into %2520). Then, use the URI as explained above, adding in all the parts of the URL (so that you don't drop the query parameters).
public URL convertToURLEscapingIllegalCharacters(String string){
try {
String decodedURL = URLDecoder.decode(string, "UTF-8");
URL url = new URL(decodedURL);
URI uri = new URI(url.getProtocol(), url.getUserInfo(), url.getHost(), url.getPort(), url.getPath(), url.getQuery(), url.getRef());
return uri.toURL();
} catch (Exception ex) {
ex.printStackTrace();
return null;
}
}
I'm surprised this hasn't been mentioned yet:
Have a look at the TIMESTAMPDIFF() function in MySQL.
What this allows you to do is pass in two TIMESTAMP
or DATETIME
values (or even DATE
as MySQL will auto-convert) as well as the unit of time you want to base your difference on.
You can specify MONTH
as the unit in the first parameter:
SELECT TIMESTAMPDIFF(MONTH, '2012-05-05', '2012-06-04')
-- Outputs: 0
SELECT TIMESTAMPDIFF(MONTH, '2012-05-05', '2012-06-05')
-- Outputs: 1
SELECT TIMESTAMPDIFF(MONTH, '2012-05-05', '2012-06-15')
-- Outputs: 1
SELECT TIMESTAMPDIFF(MONTH, '2012-05-05', '2012-12-16')
-- Outputs: 7
It basically gets the number of months elapsed from the first date in the parameter list. This solution automatically compensates for the varying amount of days in each month (28,30,31) as well as taking into account leap years — you don't have to worry about any of that stuff.
It's a little more complicated if you want to introduce decimal precision in the number of months elapsed, but here is how you can do it:
SELECT
TIMESTAMPDIFF(MONTH, startdate, enddate) +
DATEDIFF(
enddate,
startdate + INTERVAL
TIMESTAMPDIFF(MONTH, startdate, enddate)
MONTH
) /
DATEDIFF(
startdate + INTERVAL
TIMESTAMPDIFF(MONTH, startdate, enddate) + 1
MONTH,
startdate + INTERVAL
TIMESTAMPDIFF(MONTH, startdate, enddate)
MONTH
)
Where startdate
and enddate
are your date parameters, whether it be from two date columns in a table or as input parameters from a script:
Examples:
With startdate = '2012-05-05' AND enddate = '2012-05-27':
-- Outputs: 0.7097
With startdate = '2012-05-05' AND enddate = '2012-06-13':
-- Outputs: 1.2667
With startdate = '2012-02-27' AND enddate = '2012-06-02':
-- Outputs: 3.1935
Simply said and without revealing the kitchen secrets:
a set in general, is a collection that contains no duplicate elements, and whose elements are in no particular order. So, A HashSet<T>
is similar to a generic List<T>
, but is optimized for fast lookups (via hashtables, as the name implies) at the cost of losing order.
Actually it's possible, despite what's being said in other answers. If you have a FrameLayout
, and want to position a child item to the bottom, you can use android:layout_gravity="bottom"
and that is going to align that child to the bottom of the FrameLayout
.
I know it works because I'm using it. I know is late, but it might come handy to others since this ranks in the top positions on google
Take a look at this example. This query should work:
var leftFinal = from left in lefts
join right in rights on left equals right.Left into leftRights
from leftRight in leftRights.DefaultIfEmpty()
select new { LeftId = left.Id, RightId = left.Key==leftRight.Key ? leftRight.Id : 0 };
Correct syntax looks like this. See MSDN.
SELECT *
FROM [FAEB].[dbo].[ExportaComisiones] AS f
JOIN [zCredifiel].[dbo].[optPerson] AS p
ON p.vTreasuryId COLLATE Latin1_General_CI_AS = f.RFC COLLATE Latin1_General_CI_AS
The only viable solution in my opinion is to use
ID INT IDENTITY(1,1)
column to get SQL Server to handle the automatic increment of your numeric valueSo try this:
CREATE TABLE dbo.tblUsers
(ID INT IDENTITY(1,1) NOT NULL PRIMARY KEY CLUSTERED,
UserID AS 'UID' + RIGHT('00000000' + CAST(ID AS VARCHAR(8)), 8) PERSISTED,
.... your other columns here....
)
Now, every time you insert a row into tblUsers
without specifying values for ID
or UserID
:
INSERT INTO dbo.tblUsersCol1, Col2, ..., ColN)
VALUES (Val1, Val2, ....., ValN)
then SQL Server will automatically and safely increase your ID
value, and UserID
will contain values like UID00000001
, UID00000002
,...... and so on - automatically, safely, reliably, no duplicates.
Update: the column UserID
is computed - but it still OF COURSE has a data type, as a quick peek into the Object Explorer reveals:
Select * from a_table where attribute = 'k' COLLATE Latin1_General_CS_AS
Did the trick.
XML Schemas describe hierarchial data models and may not map well to a relational data model. Mapping XSD's to database tables is very similar mapping objects to database tables, in fact you could use a framework like Castor that does both, it allows you to take a XML schema and generate classes, database tables, and data access code. I suppose there are now many tools that do the same thing, but there will be a learning curve and the default mappings will most like not be what you want, so you have to spend time customizing whatever tool you use.
XSLT might be the fastest way to generate exactly the code that you want. If it is a small schema hardcoding it might be faster than evaluating and learing a bunch of new technologies.
In windows :
%APPDATA%\Subversion\auth\svn.simple
svn.simple
folderIt worked for me.... ;)
In general you can use pandas rename function here. Given your dataframe you could change to a new name like this. If you had more columns you could also rename those in the dictionary. The 0 is the current name of your column
import pandas as pd
import numpy as np
e = np.random.normal(size=100)
e_dataframe = pd.DataFrame(e)
e_dataframe.rename(index=str, columns={0:'new_column_name'})
For python selenium,
Importing the library,
from selenium.webdriver.common.keys import Keys
Use this code to press any key you want,
Anyelement.send_keys(Keys.RETURN)
You can find all the key names by searching this selenium.webdriver.common.keys
.
I tried this:
SELECT DISTINCT link,id,day,month FROM posted WHERE ad='$key' ORDER BY day, month
It doesn't work. It returns too many rows. Say there are 10 rows with same links, but different day/month/id. This script will return all 10, and I want only the first one (for this link).
What you're asking doesn't make sense.
Either you want the distinct value of all of link, id, day, month
, or you need to find a criterion to choose which of the values of id, day, month
you want to use, if you just want at most one distinct value of link
.
Otherwise, what you're after is similar to MySQL's hidden columns in GROUP BY
/HAVING
statements, which is non-standard SQL, and can actually be quite confusing.
You could in fact use a GROUP BY link
if it made sense to pick any row for a given link
value.
Alternatively, you could use a sub-select to pick the row with the minimal id
for a each link
value (as described in this answer):
SELECT link, id, day, month FROM posted
WHERE (link, id) IN
(SELECT link, MIN(id) FROM posted ad='$key' GROUP BY link)
You can create config once and use it everywhere.
const instance = axios.create({
baseURL: 'https://some-domain.com/api/',
timeout: 1000,
headers: {'Authorization': 'Bearer '+token}
});
instance.get('/path')
.then(response => {
return response.data;
})
The data in COL1 is in dd-mon-yy
No it's not. A DATE
column does not have any format. It is only converted (implicitely) to that representation by your SQL client when you display it.
If COL1 is really a DATE
column using to_date()
on it is useless because to_date()
converts a string to a DATE.
You only need to_char(), nothing else:
SELECT TO_CHAR(col1, 'mm/dd/yyyy')
FROM TABLE1
What happens in your case is that calling to_date()
converts the DATE
into a character value (applying the default NLS format) and then converting that back to a DATE. Due to this double implicit conversion some information is lost on the way.
Edit
So you did make that big mistake to store a DATE in a character column. And that's why you get the problems now.
The best (and to be honest: only sensible) solution is to convert that column to a DATE
. Then you can convert the values to any rerpresentation that you want without worrying about implicit data type conversion.
But most probably the answer is "I inherited this model, I have to cope with it" (it always is, apparently no one ever is responsible for choosing the wrong datatype), then you need to use RR
instead of YY
:
SELECT TO_CHAR(TO_DATE(COL1,'dd-mm-rr'), 'mm/dd/yyyy')
FROM TABLE1
should do the trick. Note that I also changed mon
to mm
as your example is 27-11-89
which has a number for the month, not an "word" (like NOV)
For more details see the manual: http://docs.oracle.com/cd/B28359_01/server.111/b28286/sql_elements004.htm#SQLRF00215
Since this topic never received a verified solution, I can offer a simple solution to the two issues I see you asked solutions for.
The string class offers a replace method for the string object you want to update:
Example:
$myString = $myString.replace(".","")
The system.int32 class (or simply [int] in powershell) has a method available called "TryParse" which will not only pass back a boolean indicating whether the string is an integer, but will also return the value of the integer into an existing variable by reference if it returns true.
Example:
[string]$convertedInt = "1500"
[int]$returnedInt = 0
[bool]$result = [int]::TryParse($convertedInt, [ref]$returnedInt)
I hope this addresses the issue you initially brought up in your question.
You could specify what branch you want to pull:
git pull origin master
Or you could set it up so that your local master branch tracks github master branch as an upstream:
git branch --set-upstream-to=origin/master master
git pull
This branch tracking is set up for you automatically when you clone a repository (for the default branch only), but if you add a remote to an existing repository you have to set up the tracking yourself. Thankfully, the advice given by git makes that pretty easy to remember how to do.
You need to use HttpContext.Current.Request.Cookies
, not Response.Cookies
.
Side note: cookies are copied to Request on Response.Cookies.Add
, which makes check on either of them to behave the same for newly added cookies. But incoming cookies are never reflected in Response
.
This behavior is documented in HttpResponse.Cookies property:
After you add a cookie by using the HttpResponse.Cookies collection, the cookie is immediately available in the HttpRequest.Cookies collection, even if the response has not been sent to the client.
If you're geting [object object]
then use JSON.stringify
fs.writeFile('./data.json', JSON.stringify(obj) , 'utf-8');
It worked for me.
Not an expert in regex, but you can do ^((part1|part2)|(part1, part2))$
. In words: "part 1 or part2 or both"
PostgreSQL GIS extensions might be helpful - as in, it may already implement much of the functionality you are thinking of implementing.
One trick could be setting the color of tick labels as white to hide it!
plt.xticks(color='w')
plt.yticks(color='w')
or to be more generalized (@Armin Okic), you can set it as "None"
.
I had some issues with the MouseDown part of this, but here is some code that might get your started.
<Window x:Class="WpfApplication1.Window1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="Window1" Height="300" Width="300">
<Grid>
<Control VerticalAlignment="Top">
<Control.Template>
<ControlTemplate>
<StackPanel>
<TextBox x:Name="MyText"></TextBox>
<Popup x:Name="Popup" PopupAnimation="Fade" VerticalAlignment="Top">
<Border Background="Red">
<TextBlock>Test Popup Content</TextBlock>
</Border>
</Popup>
</StackPanel>
<ControlTemplate.Triggers>
<EventTrigger RoutedEvent="UIElement.MouseEnter" SourceName="MyText">
<BeginStoryboard>
<Storyboard>
<BooleanAnimationUsingKeyFrames Storyboard.TargetName="Popup" Storyboard.TargetProperty="(Popup.IsOpen)">
<DiscreteBooleanKeyFrame KeyTime="00:00:00" Value="True"/>
</BooleanAnimationUsingKeyFrames>
</Storyboard>
</BeginStoryboard>
</EventTrigger>
<EventTrigger RoutedEvent="UIElement.MouseLeave" SourceName="MyText">
<BeginStoryboard>
<Storyboard>
<BooleanAnimationUsingKeyFrames Storyboard.TargetName="Popup" Storyboard.TargetProperty="(Popup.IsOpen)">
<DiscreteBooleanKeyFrame KeyTime="00:00:00" Value="False"/>
</BooleanAnimationUsingKeyFrames>
</Storyboard>
</BeginStoryboard>
</EventTrigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Control.Template>
</Control>
</Grid>
</Window>
... What about using Apache's FileFilters from:
org.apache.commons.io
?
just like:
import org.apache.commons.io.filefilter.FileFileFilter;
import org.apache.commons.io.filefilter.WildcardFileFilter;
...
File dir = new File(".");
String[] filters = { "*.txt"};
IOFileFilter wildCardFilter = new WildcardFileFilter(filters, IOCase.INSENSITIVE);
String[] files = dir.list( wildCardFilter );
for ( int i = 0; i < files.length; i++ ) {
System.out.println(files[i]);
}
Late answer, but two things to add:
'ColorOrder'
property and how to set a global default with 'DefaultAxesColorOrder'
, see the "Appendix" at the bottom of this post.The ColorOrder
axes
property allows MATLAB to automatically cycle through a list of colors when using hold on/all
(again, see Appendix below for how to set
/get
the ColorOrder
for a specific axis or globally via DefaultAxesColorOrder
). However, by default MATLAB only specifies a short list of colors (just 7 as of R2013b) to cycle through, and on the other hand it can be problematic to find a good set of colors for more data series. For 10 plots, you obviously cannot rely on the default ColorOrder
.
A great way to define N visually distinct colors is with the "Generate Maximally Perceptually-Distinct Colors" (GMPDC) submission on the MATLAB Central File File Exchange. It is best described in the author's own words:
This function generates a set of colors which are distinguishable by reference to the "Lab" color space, which more closely matches human color perception than RGB. Given an initial large list of possible colors, it iteratively chooses the entry in the list that is farthest (in Lab space) from all previously-chosen entries.
For example, when 25 colors are requested:
The GMPDC submission was chosen on MathWorks' official blog as Pick of the Week in 2010 in part because of the ability to request an arbitrary number of colors (in contrast to MATLAB's built in 7 default colors). They even made the excellent suggestion to set MATLAB's ColorOrder
on startup to,
distinguishable_colors(20)
Of course, you can set the ColorOrder
for a single axis or simply generate a list of colors to use in any way you like. For example, to generate 10 "maximally perceptually-distinct colors" and use them for 10 plots on the same axis (but not using ColorOrder
, thus requiring a loop):
% Starting with X of size N-by-P-by-2, where P is number of plots
mpdc10 = distinguishable_colors(10) % 10x3 color list
hold on
for ii=1:size(X,2),
plot(X(:,ii,1),X(:,ii,2),'.','Color',mpdc10(ii,:));
end
The process is simplified, requiring no for
loop, with the ColorOrder
axis property:
% X of size N-by-P-by-2 mpdc10 = distinguishable_colors(10) ha = axes; hold(ha,'on') set(ha,'ColorOrder',mpdc10) % --- set ColorOrder HERE --- plot(X(:,:,1),X(:,:,2),'-.') % loop NOT needed, 'Color' NOT needed. Yay!
APPENDIX
To get the ColorOrder
RGB array used for the current axis,
get(gca,'ColorOrder')
To get the default ColorOrder
for new axes,
get(0,'DefaultAxesColorOrder')
Example of setting new global ColorOrder
with 10 colors on MATLAB start, in startup.m
:
set(0,'DefaultAxesColorOrder',distinguishable_colors(10))
Why do you pass -c
? That will just show the number of matches. Similarly, there is no reason to use -r
. I suggest you read man grep
.
To grep for 2 words existing on the same line, simply do:
grep "word1" FILE | grep "word2"
grep "word1" FILE
will print all lines that have word1 in them from FILE, and then grep "word2"
will print the lines that have word2 in them. Hence, if you combine these using a pipe, it will show lines containing both word1 and word2.
If you just want a count of how many lines had the 2 words on the same line, do:
grep "word1" FILE | grep -c "word2"
Also, to address your question why does it get stuck : in grep -c "word1"
, you did not specify a file. Therefore, grep
expects input from stdin
, which is why it seems to hang. You can press Ctrl+D to send an EOF (end-of-file) so that it quits.
You forgot the HTTP part:
window.location.href = "http://example.com/Registration/Success/";
Better option to change also collation of varchar columns inside table also
SELECT CONCAT('ALTER TABLE `', TABLE_NAME,'` CONVERT TO CHARACTER SET utf8 COLLATE utf8_general_ci;') AS mySQL
FROM INFORMATION_SCHEMA.TABLES
WHERE TABLE_SCHEMA= "myschema"
AND TABLE_TYPE="BASE TABLE"
Additionnaly if you have data with forein key on non utf8 column before launch the bunch script use
SET foreign_key_checks = 0;
It means global SQL will be for mySQL :
SET foreign_key_checks = 0;
ALTER TABLE `table1` CONVERT TO CHARACTER SET utf8 COLLATE utf8_unicode_ci;
ALTER TABLE `table2` CONVERT TO CHARACTER SET utf8 COLLATE utf8_unicode_ci;
ALTER TABLE `tableXXX` CONVERT TO CHARACTER SET utf8 COLLATE utf8_unicode_ci;
SET foreign_key_checks = 1;
But take care if according mysql documentation http://dev.mysql.com/doc/refman/5.1/en/charset-column.html,
If you use ALTER TABLE to convert a column from one character set to another, MySQL attempts to map the data values, but if the character sets are incompatible, there may be data loss. "
EDIT: Specially with column type enum, it just crash completly enums set (even if there is no special caracters) https://bugs.mysql.com/bug.php?id=26731
Using Visual Studio
This gives details about each assembly, app domain and has a few options to load symbols (i.e. pdb files that contain debug information).
Using Process Explorer
If you want an external tool you can use the Process Explorer (freeware, published by Microsoft)
Click on a process and it will show a list with all the assemblies used. The tool is pretty good as it shows other information such as file handles etc.
Programmatically
Check this SO question that explains how to do it.
A web application is a software program which a user accesses over an internal network, or via the internet through a web browser. An example of one of the most widely used web applications is Google Docs, which facilitates most of the capabilities of Microsoft Word; it’s free and easy to use from any location.
A web site, on the other hand, is a collection of documents that are accessed via the internet through a web browser. Web sites can also contain web applications, which allow visitors to complete online tasks such as: Search, View, Buy, Checkout, and Pay.
Starting with Vue2, the triple braces were deprecated, you are to use v-html
.
<div v-html="task.html_content"> </div>
It is unclear from the documentation link as to what we are supposed to place inside v-html
, your variables goes inside v-html
.
Also, v-html
works only with <div>
or <span>
but not with <template>
.
If you want to see this live in an app, click here.
max=int(input("Find primes upto what numbers?"))
primeList=[]
for x in range(2,max+1):
isPrime=True
for y in range(2,int(x**0.5)+1) :
if x%y==0:
isPrime=False
break
if isPrime:
primeList.append(x)
print(primeList)
As of today, you can read some values from HTML5 data
attributes in CSS3 declarations. In CaioToOn's fiddle the CSS code can use the data
properties for setting the content
.
Unfortunately it is not working for the width
and height
(tested in Google Chrome 35, Mozilla Firefox 30 & Internet Explorer 11).
But there is a CSS3 attr() Polyfill from Fabrice Weinberg which provides support for data-width
and data-height
. You can find the GitHub repo to it here: cssattr.js.
In Google Sheets, to count the number of rows which contain at least one non-empty cell within a two-dimensional range:
=ARRAYFORMULA(
SUM(
N(
MMULT(
N(A1:C5<>""),
TRANSPOSE(COLUMN(A1:C5)^0)
)
>0
)
)
)
Where A1:C5 is the range you're checking for non-empty rows.
The formula comes from, and is explained in the following article from EXCELXOR - https://excelxor.com/2015/03/30/counting-rows-where-at-least-one-condition-is-met/
Python comes with numerous ways of formatting strings:
New style .format()
, which supports a rich formatting mini-language:
>>> temperature = 10
>>> print("the furnace is now {} degrees!".format(temperature))
the furnace is now 10 degrees!
Old style %
format specifier:
>>> print("the furnace is now %d degrees!" % temperature)
the furnace is now 10 degrees!
In Py 3.6 using the new f""
format strings:
>>> print(f"the furnace is now {temperature} degrees!")
the furnace is now 10 degrees!
Or using print()
s default sep
arator:
>>> print("the furnace is now", temperature, "degrees!")
the furnace is now 10 degrees!
And least effectively, construct a new string by casting it to a str()
and concatenating:
>>> print("the furnace is now " + str(temperature) + " degrees!")
the furnace is now 10 degrees!
Or join()
ing it:
>>> print(' '.join(["the furnace is now", str(temperature), "degrees!"]))
the furnace is now 10 degrees!
For strings you can just after process the string. For docstrings you need to after process the function instead. Here is a solution for both that is still readable.
class Lstrip(object):
def __rsub__(self, other):
import re
return re.sub('^\n', '', re.sub('\n$', '', re.sub('\n\s+', '\n', other)))
msg = '''
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod
tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim
veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea
commodo consequat. Duis aute irure dolor in reprehenderit in voluptate
velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat
cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id
est laborum.
''' - Lstrip()
print msg
def lstrip_docstring(func):
func.__doc__ = func.__doc__ - Lstrip()
return func
@lstrip_docstring
def foo():
'''
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod
tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim
veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea
commodo consequat. Duis aute irure dolor in reprehenderit in voluptate
velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat
cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id
est laborum.
'''
pass
print foo.__doc__
Warnings are annoying. As mentioned in other answers, you can suppress them using:
import warnings
warnings.simplefilter(action='ignore', category=FutureWarning)
But if you want to handle them one by one and you are managing a bigger codebase, it will be difficult to find the line of code which is causing the warning. Since warnings unlike errors don't come with code traceback. In order to trace warnings like errors, you can write this at the top of the code:
import warnings
warnings.filterwarnings("error")
But if the codebase is bigger and it is importing bunch of other libraries/packages, then all sort of warnings will start to be raised as errors. In order to raise only certain type of warnings (in your case, its FutureWarning) as error, you can write:
import warnings
warnings.simplefilter(action='error', category=FutureWarning)
What you can do is to use the with
statement, and write the two steps on one line:
>>> with open('pagehead.section.htm', 'r') as fin: output = fin.read();
>>> print(output)
some content
The with
statement will take care to call __exit__
function of the given object even if something bad happened in your code; it's close to the try... finally
syntax. For object returned by open
, __exit__
corresponds to file closure.
This statement has been introduced with Python 2.6.
Try Server.UrlEncode()
, or System.Web.HttpUtility.UrlEncode()
for instances when you don't have access to the Server
object. You can also use System.Uri.EscapeUriString()
to avoid adding a reference to the System.Web
assembly.
Python accepts both " and ' as quote marks, so you could do this as:
>>> print '"A word that needs quotation marks"'
"A word that needs quotation marks"
Alternatively, just escape the inner "s
>>> print "\"A word that needs quotation marks\""
"A word that needs quotation marks"
DELETE
FROM MyTable
WHERE NOT EXISTS (
SELECT min(RowID)
FROM Mytable
WHERE (SELECT RowID
FROM Mytable
GROUP BY Col1, Col2, Col3
))
);
Select the labels above the bar. Format Data Labels. Instead of selecting "VALUE" (unclick). SELECT Value from cells. Select the value. Use the following statement: if(cellvalue="","",cellvalue) where cellvalue is what ever the calculation is in the cell.
if (document.getElementById('theElement')) // do whatever after this
For undefined things that throw errors, test the property name of the parent object instead of just the variable name - so instead of:
if (blah) ...
do:
if (window.blah) ...
Not taking anything away from Nikos' awesome answer, perhaps you can do this more simply:
<form name="telForm">
<input name="cb" type='checkbox' data-ng-modal='requireTel'>
<input name="tel" type="text" ng-model="..." ng-if='requireTel' ng-pattern="phoneNumberPattern" required/>
<button type="submit" ng-disabled="telForm.$invalid || telForm.$pristine">Submit</button>
</form>
Pay attention to the second input: We can use an ng-if
to control rendering and validation in forms.
If the requireTel
variable is unset, the second input would not only be hidden, but not rendered at all, thus the form will pass validation and the button will become enabled, and you'll get what you need.
npm list -g --depth=0
-g
option it only shows the current directory’s packages)Just to add into alread given answers, the following worked for me:
HTML:
<div id="div{{$index+1}}" data-ng-show="val{{$index}}">
Where $index
is the loop index.
Javascript (where value
is the passed parameter to the function and it will be the value of $index
, current loop index):
var variable = "val"+value;
if ($scope[variable] === undefined)
{
$scope[variable] = true;
}else {
$scope[variable] = !$scope[variable];
}
Here you can benchmark all supported hashes on your hardware, supported by your version of node.js. Some are cryptographic, and some is just for a checksum. Its calculating "Hello World" 1 million times for each algorithm. It may take around 1-15 seconds for each algorithm (Tested on the Standard Google Computing Engine with Node.js 4.2.2).
for(var i1=0;i1<crypto.getHashes().length;i1++){
var Algh=crypto.getHashes()[i1];
console.time(Algh);
for(var i2=0;i2<1000000;i2++){
crypto.createHash(Algh).update("Hello World").digest("hex");
}
console.timeEnd(Algh);
}
Result:
DSA: 1992ms
DSA-SHA: 1960ms
DSA-SHA1: 2062ms
DSA-SHA1-old: 2124ms
RSA-MD4: 1893ms
RSA-MD5: 1982ms
RSA-MDC2: 2797ms
RSA-RIPEMD160: 2101ms
RSA-SHA: 1948ms
RSA-SHA1: 1908ms
RSA-SHA1-2: 2042ms
RSA-SHA224: 2176ms
RSA-SHA256: 2158ms
RSA-SHA384: 2290ms
RSA-SHA512: 2357ms
dsaEncryption: 1936ms
dsaWithSHA: 1910ms
dsaWithSHA1: 1926ms
dss1: 1928ms
ecdsa-with-SHA1: 1880ms
md4: 1833ms
md4WithRSAEncryption: 1925ms
md5: 1863ms
md5WithRSAEncryption: 1923ms
mdc2: 2729ms
mdc2WithRSA: 2890ms
ripemd: 2101ms
ripemd160: 2153ms
ripemd160WithRSA: 2210ms
rmd160: 2146ms
sha: 1929ms
sha1: 1880ms
sha1WithRSAEncryption: 1957ms
sha224: 2121ms
sha224WithRSAEncryption: 2290ms
sha256: 2134ms
sha256WithRSAEncryption: 2190ms
sha384: 2181ms
sha384WithRSAEncryption: 2343ms
sha512: 2371ms
sha512WithRSAEncryption: 2434ms
shaWithRSAEncryption: 1966ms
ssl2-md5: 1853ms
ssl3-md5: 1868ms
ssl3-sha1: 1971ms
whirlpool: 2578ms
You need to insert the new row and then copy from the source row to the newly inserted row. Excel allows you to paste special just formulas. So in Excel:
VBA if required with Rows("1:1") being source and Rows("2:2") being target:
Rows("2:2").Insert Shift:=xlDown, CopyOrigin:=xlFormatFromLeftOrAbove
Rows("2:2").Clear
Rows("1:1").Copy
Rows("2:2").PasteSpecial Paste:=xlPasteFormulas, Operation:=xlNone
I think Candy's answer is mostly correct. There is one small part I think otherwise.
To map host:port/context/hello.jsp
I believe that why "/*" does not match host:port/context/hello because it treats "/hello" as a path instead of a file (since it does not have an extension).
just in case someone comes to this question, I have the easier version.
public static MediaPlayer mp;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button b = (Button) findViewById(R.id.button);
Button b2 = (Button) findViewById(R.id.button2);
b.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
mp = MediaPlayer.create(MainActivity.this, R.raw.game);
mp.start();
}
});
b2.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
mp.stop();
// mp.start();
}
});
}
A correct snprintf
implementation:
int count = snprintf(NULL, 0, "%i", x);
You can use onlinefontconverter.com site. It works fine and have plenty of output formats (afm bin cff dfont eot pfa pfb pfm ps pt3 suit svg t42 tfm ttc ttf woff). One of the advantages I saw, is that it export all the fonts contained inside the ttc at once (which is very convenient).
@Id
@GeneratedValue(strategy=GenerationType.AUTO)
private int id;
and you leave it null
(0
) when persisting. (null
if you use the Integer
/ Long
wrappers)
In some cases the AUTO
strategy is resolved to SEQUENCE
rathen than to IDENTITY
or TABLE
, so you might want to manually set it to IDENTITY
or TABLE
(depending on the underlying database).
It seems SEQUENCE
+ specifying the sequence name worked for you.
Try to use appendChild method:
select.appendChild(option);
My solution was to make all the parents 100% and set a specific percentage for each row:
html, body,div[class^="container"] ,.column {
height: 100%;
}
.row0 {height: 10%;}
.row1 {height: 40%;}
.row2 {height: 50%;}
What you have is correct, though you will not call it global, it is a class attribute and can be accessed via class e.g Shape.lolwut
or via an instance e.g. shape.lolwut
but be careful while setting it as it will set an instance level attribute not class attribute
class Shape(object):
lolwut = 1
shape = Shape()
print Shape.lolwut, # 1
print shape.lolwut, # 1
# setting shape.lolwut would not change class attribute lolwut
# but will create it in the instance
shape.lolwut = 2
print Shape.lolwut, # 1
print shape.lolwut, # 2
# to change class attribute access it via class
Shape.lolwut = 3
print Shape.lolwut, # 3
print shape.lolwut # 2
output:
1 1 1 2 3 2
Somebody may expect output to be 1 1 2 2 3 3
but it would be incorrect
I came up with this one, which is giving me the exact overview I need. What is helps is that you get one row per index into which the index columns are aggregated.
select
o.name as ObjectName,
i.name as IndexName,
i.is_primary_key as [PrimaryKey],
SUBSTRING(i.[type_desc],0,6) as IndexType,
i.is_unique as [Unique],
Columns.[Normal] as IndexColumns,
Columns.[Included] as IncludedColumns
from sys.indexes i
join sys.objects o on i.object_id = o.object_id
cross apply
(
select
substring
(
(
select ', ' + co.[name]
from sys.index_columns ic
join sys.columns co on co.object_id = i.object_id and co.column_id = ic.column_id
where ic.object_id = i.object_id and ic.index_id = i.index_id and ic.is_included_column = 0
order by ic.key_ordinal
for xml path('')
)
, 3
, 10000
) as [Normal]
, substring
(
(
select ', ' + co.[name]
from sys.index_columns ic
join sys.columns co on co.object_id = i.object_id and co.column_id = ic.column_id
where ic.object_id = i.object_id and ic.index_id = i.index_id and ic.is_included_column = 1
order by ic.key_ordinal
for xml path('')
)
, 3
, 10000
) as [Included]
) Columns
where o.[type] = 'U' --USER_TABLE
order by o.[name], i.[name], i.is_primary_key desc
The command JG simply means: Jump if Greater. The result of the preceding instructions is stored in certain processor flags (in this it would test if ZF=0 and SF=OF) and jump instruction act according to their state.
To bind a UDP socket when receiving multicast means to specify an address and port from which to receive data (NOT a local interface, as is the case for TCP acceptor bind). The address specified in this case has a filtering role, i.e. the socket will only receive datagrams sent to that multicast address & port, no matter what groups are subsequently joined by the socket. This explains why when binding to INADDR_ANY (0.0.0.0) I received datagrams sent to my multicast group, whereas when binding to any of the local interfaces I did not receive anything, even though the datagrams were being sent on the network to which that interface corresponded.
Quoting from UNIX® Network Programming Volume 1, Third Edition: The Sockets Networking API by W.R Stevens. 21.10. Sending and Receiving
[...] We want the receiving socket to bind the multicast group and port, say 239.255.1.2 port 8888. (Recall that we could just bind the wildcard IP address and port 8888, but binding the multicast address prevents the socket from receiving any other datagrams that might arrive destined for port 8888.) We then want the receiving socket to join the multicast group. The sending socket will send datagrams to this same multicast address and port, say 239.255.1.2 port 8888.
Other way to get current Controller name in View
@ViewContext.Controller.ValueProvider.GetValue("controller").RawValue
If you have php 5.3+, you can use an anonymous function like so:
add_filter( 'login_redirect', function() { return site_url('news'); } );
Here's a neat solution:
String upToNCharacters = s.substring(0, Math.min(s.length(), n));
Opinion: while this solution is "neat", I think it is actually less readable than a solution that uses if
/ else
in the obvious way. If the reader hasn't seen this trick, he/she has to think harder to understand the code. IMO, the code's meaning is more obvious in the if
/ else
version. For a cleaner / more readable solution, see @paxdiablo's answer.
If you want to run the scripts in parallel and give them different arguments you can do like below.
import os
os.system("python script.py arg1 arg2 & python script.py arg11 arg22")
Try this:
.greenText{ background-color:green; }_x000D_
_x000D_
.blueText{ background-color:blue; }_x000D_
_x000D_
.redText{ background-color:red; }
_x000D_
<select_x000D_
onchange="this.className=this.options[this.selectedIndex].className"_x000D_
class="greenText">_x000D_
<option class="greenText" value="apple" >Apple</option>_x000D_
<option class="redText" value="banana" >Banana</option>_x000D_
<option class="blueText" value="grape" >Grape</option>_x000D_
</select>
_x000D_
If you visit this link https://msdn.microsoft.com/library/ms748948%28v=vs.100%29.aspx#Window_Lifetime_Events and scroll down to Window Lifetime Events it will show you the event order.
Open:
Close:
The correct way to do it would be:
adb -s 123abc12 shell getprop
Which will give you a list of all available properties and their values. Once you know which property you want, you can give the name as an argument to getprop
to access its value directly, like this:
adb -s 123abc12 shell getprop ro.product.model
The details in adb devices -l
consist of the following three properties: ro.product.name
, ro.product.model
and ro.product.device
.
Note that ADB shell ends lines with \r\n
, which depending on your platform might or might not make it more difficult to access the exact value (e.g. instead of Nexus 7
you might get Nexus 7\r
).
$('.modal').on('shown.bs.modal',function(){ //correct here use 'shown.bs.modal' event which comes in bootstrap3
$(this).find('iframe').attr('src','http://www.google.com')
})
As shown above use 'shown.bs.modal'
event which comes in bootstrap 3.
EDIT :-
and just try to open some other url from iframe other than google.com ,it will not allow you to open google.com due to some security threats.
The reason for this is, that Google is sending an "X-Frame-Options: SAMEORIGIN" response header. This option prevents the browser from displaying iFrames that are not hosted on the same domain as the parent page.
All of
std::string s(1, c); std::cout << s << std::endl;
and
std::cout << std::string(1, c) << std::endl;
and
std::string s; s.push_back(c); std::cout << s << std::endl;
worked for me.
Full Detail Blog :http://blog.techhysahil.com/svg/how-to-center-text-in-svg-shapes/
<svg width="600" height="600">_x000D_
<!-- Circle -->_x000D_
<g transform="translate(50,40)">_x000D_
<circle cx="0" cy="0" r="35" stroke="#aaa" stroke-width="2" fill="#fff"></circle>_x000D_
<text x="0" y="0" alignment-baseline="middle" font-size="12" stroke-width="0" stroke="#000" text-anchor="middle">HueLink</text>_x000D_
</g>_x000D_
_x000D_
<!-- In Rectangle text position needs to be given half of width and height of rectangle respectively -->_x000D_
<!-- Rectangle -->_x000D_
<g transform="translate(150,20)">_x000D_
<rect width="150" height="40" stroke="#aaa" stroke-width="2" fill="#fff"></rect>_x000D_
<text x="75" y="20" alignment-baseline="middle" font-size="12" stroke-width="0" stroke="#000" text-anchor="middle">HueLink</text>_x000D_
</g>_x000D_
_x000D_
<!-- Rectangle -->_x000D_
<g transform="translate(120,140)">_x000D_
<ellipse cx="0" cy="0" rx="100" ry="50" stroke="#aaa" stroke-width="2" fill="#fff"></ellipse>_x000D_
<text x="0" y="0" alignment-baseline="middle" font-size="12" stroke-width="0" stroke="#000" text-anchor="middle">HueLink</text>_x000D_
</g>_x000D_
_x000D_
_x000D_
</svg>
_x000D_
I have merged some solutions to make a complete util for picking an image from Gallery or Camera. These are the features of ImagePicker util gist (also in a Github lib):
Screenshot:
Edit: Here is a fragment of code to get a merged Intent for Gallery and Camera apps together. You can see the full code at ImagePicker util gist (also in a Github lib):
public static Intent getPickImageIntent(Context context) {
Intent chooserIntent = null;
List<Intent> intentList = new ArrayList<>();
Intent pickIntent = new Intent(Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
Intent takePhotoIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
takePhotoIntent.putExtra("return-data", true);
takePhotoIntent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(getTempFile(context)));
intentList = addIntentsToList(context, intentList, pickIntent);
intentList = addIntentsToList(context, intentList, takePhotoIntent);
if (intentList.size() > 0) {
chooserIntent = Intent.createChooser(intentList.remove(intentList.size() - 1),
context.getString(R.string.pick_image_intent_text));
chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, intentList.toArray(new Parcelable[]{}));
}
return chooserIntent;
}
private static List<Intent> addIntentsToList(Context context, List<Intent> list, Intent intent) {
List<ResolveInfo> resInfo = context.getPackageManager().queryIntentActivities(intent, 0);
for (ResolveInfo resolveInfo : resInfo) {
String packageName = resolveInfo.activityInfo.packageName;
Intent targetedIntent = new Intent(intent);
targetedIntent.setPackage(packageName);
list.add(targetedIntent);
}
return list;
}
You can use the Java Geodesy Library for GPS, it uses the Vincenty's formulae which takes account of the earths surface curvature.
Implementation goes like this:
import org.gavaghan.geodesy.*;
...
GeodeticCalculator geoCalc = new GeodeticCalculator();
Ellipsoid reference = Ellipsoid.WGS84;
GlobalPosition pointA = new GlobalPosition(latitude, longitude, 0.0); // Point A
GlobalPosition userPos = new GlobalPosition(userLat, userLon, 0.0); // Point B
double distance = geoCalc.calculateGeodeticCurve(reference, userPos, pointA).getEllipsoidalDistance(); // Distance between Point A and Point B
The resulting distance is in meters.
The Jon Skeet answer addresses well the two scenarios (map with null
value and not null
value) in an efficient way.
About the number entries and the efficiency concern, I would like add something.
I have a HashMap with say a 1.000 entries and I am looking at improving the efficiency. If the HashMap is being accessed very frequently, then checking for the key existence at every access will lead to a large overhead.
A map with 1.000 entries is not a huge map.
As well as a map with 5.000 or 10.000 entries.
Map
are designed to make fast retrieval with such dimensions.
Now, it assumes that hashCode()
of the map keys provides a good distribution.
If you may use an Integer
as key type, do it.
Its hashCode()
method is very efficient since the collisions are not possible for unique int
values :
public final class Integer extends Number implements Comparable<Integer> {
...
@Override
public int hashCode() {
return Integer.hashCode(value);
}
public static int hashCode(int value) {
return value;
}
...
}
If for the key, you have to use another built-in type as String
for example that is often used in Map
, you may have some collisions but from 1 thousand to some thousands of objects in the Map
, you should have very few of it as the String.hashCode()
method provides a good distribution.
If you use a custom type, override hashCode()
and equals()
correctly and ensure overall that hashCode()
provides a fair distribution.
You may refer to the item 9 of Java Effective
refers it.
Here's a post that details the way.
Its simple and superb
$(document).ready(function () { _x000D_
var fpsOut = document.getElementById('myTime');_x000D_
setInterval(function () {_x000D_
var d = new Date(); _x000D_
fpsOut.innerHTML = d;_x000D_
}, 1000);_x000D_
});
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<div id="myTime"></div>
_x000D_
please find the below fiddler for the example
ORDER BY NEWID()
takes 7.4 milliseconds
WHERE num_value >= RAND() * (SELECT MAX(num_value) FROM table)
takes 0.0065 milliseconds
!
I will definitely go with latter method.
For anyone coming to this topic late, I could see that hitscan's "you probably shouldn't do that" might cause someone to ask what they should do…
The StringBuilder class is often an easy replacement. Consider one of the stream-based classes especially, if your data is coming from a file.
The problem with s += "stuff"
is that it has to allocate a completely new area to hold the data and then copy all of the old data to it plus the new stuff - EACH AND EVERY LOOP ITERATION. So, adding five bytes to 1,000,000 with s += "stuff"
is extremely costly.
If what you want is to just write five bytes to the end and proceed with your program, you have to pick a class that leaves some room for growth:
StringBuilder sb = new StringBuilder(5000);
for (; ; )
{
sb.Append("stuff");
}
StringBuilder
will auto-grow by doubling when it's limit is hit. So, you will see the growth pain once at start, once at 5,000 bytes, again at 10,000, again at 20,000. Appending strings will incur the pain every loop iteration.
Although many answers do point in the right direction I think none of them answers what the author of the question was thinking about. Or at least I understood the question differently because I was looking for answer to similar problem. The problem is "How to know when the user stops typing without him pressing a button" and trigger some action (for example auto-complete). If you want to do this start the Timer in onTextChanged with a delay that you would consider user stopped typing (for example 500-700ms), for each new letter when you start the timer cancel the earlier one (or at least use some sort of flag that when they tick they don't do anything). Here is similar code to what I have used:
new Timer().schedule(new TimerTask() {
@Override
public void run() {
if (!running) {
new DoPost().execute(s.toString());
});
}
}, 700);
Note that I modify running boolean flag inside my async task (Task gets the json from the server for auto-complete).
Also keep in mind that this creates many timer tasks (I think they are scheduled on the same Thread thou but would have to check this), so there are probably many places to improve but this approach also works and the bottom line is that you should use a Timer since there is no "User stopped typing event"
We use the extension methods listed below. I think you should make the developer make a decision about the encoding, so there is less magic involved.
public static class StringExtensions {
public static Stream ToStream(this string s) {
return s.ToStream(Encoding.UTF8);
}
public static Stream ToStream(this string s, Encoding encoding) {
return new MemoryStream(encoding.GetBytes(s ?? ""));
}
}
Just need to change one letter:), rename 640x360.ogv to 640x360.ogg, it will work for all the 3 browers.
Made this for a game I play, it was relevant so i'm leaving it. It's real simple. Grabs the value from platform.system. Checks it against known values for different operating systems. If it finds a match it sets the chrome path for you. If none are found it opens default browser to your link. Hope its useful to someone.
import time
import os
import webbrowser
import platform
user_OS = platform.system()
chrome_path_windows = 'C:/Program Files (x86)/Google/Chrome/Application/chrome.exe %s'
chrome_path_linux = '/usr/bin/google-chrome %s'
chrome_path_mac = 'open -a /Applications/Google\ Chrome.app %s'
chrome_path = ''
game_site_link = 'https://www.gamelink'
if user_OS == 'Windows':
chrome_path = chrome_path_windows
elif user_OS == 'Linux':
chrome_path = chrome_path_linux
elif user_OS == 'Darwin':
chrome_path = chrome_path_mac
elif user_OS == 'Java':
chrome_path = chrome_path_mac
else:
webbrowser.open_new_tab(game_site_link)
webbrowser.get(chrome_path).open_new_tab(game_site_link)
I actually changed it some more here it is updated since I am still working on this launcher
import time
import webbrowser
import platform
import subprocess
import os
import sys
privateServerLink = 'https://www.roblox.com/games/2414851778/TIER-20-Dungeon-Quest?privateServerLinkCode=GXVlmYh0Z7gwLPBf7H5FWk3ClTVesorY'
userBrowserC = input(str("Browser Type: chrome, opera, iexplore, firefox : "))
userSleepTime = int(input("How long do you want it to run?"))
if userBrowserC == 'opera':
userBrowserD = 'launcher.exe'
else:
userBrowserD = userBrowserC
if userBrowserC == "chrome":
taskToKill = "chrome.exe"
else:
taskToKill = "iexplore.exe"
if userBrowserC == 'chrome' and platform.system() == 'Windows':
browserPath = 'C:/Program Files (x86)/Google/Chrome/Application/chrome.exe %s'
elif userBrowserC == 'chrome' and platform.system() == 'Linux':
browserPath = '/usr/bin/google-chrome %s'
elif userBrowserC == 'chrome' and platform.system() == 'Darwin' or
platform.system() == 'Java':
browserPath = 'open -a /Applications/Google\ Chrome.app %s'
elif userBrowserC == 'opera' and platform.system() == 'Windows':
browserPath = 'C:/Users/'+ os.getlogin() +'/AppData/Local/Programs/Opera/launcher.exe'
elif userBrowserC == 'iexplore' and platform.system() == 'Windows':
browserPath = 'C:/Program Files/internet explorer/iexplore.exe %s'
elif userBrowserC == 'firefox' and platform.system() == 'Windows':
browserPath = 'C:/Program Files/Mozilla Firefox/firefox.exe'
else:
browserPath = ''
while 1 == 1:
subprocess.Popen('SynapseX.exe')
time.sleep(7)
webbrowser.get(browserPath).open_new_tab(privateServerLink)
time.sleep(7)
os.system('taskkill /f /im '+taskToKill)
time.sleep(userSleepTime)
Deleting nodes from XML
XmlDocument doc = new XmlDocument();
doc.Load(path);
XmlNodeList nodes = doc.SelectNodes("//Setting[@name='File1']");
for (int i = nodes.Count - 1; i >= 0; i--)
{
nodes[i].ParentNode.RemoveChild(nodes[i]);
}
doc.Save(path);
Adding attribute to Nodes in XML
XmlDocument originalXml = new XmlDocument();
originalXml.Load(path);
XmlNode menu = originalXml.SelectSingleNode("//Settings");
XmlNode newSub = originalXml.CreateNode(XmlNodeType.Element, "Setting", null);
XmlAttribute xa = originalXml.CreateAttribute("name");
xa.Value = "qwerty";
XmlAttribute xb = originalXml.CreateAttribute("value");
xb.Value = "555";
newSub.Attributes.Append(xa);
newSub.Attributes.Append(xb);
menu.AppendChild(newSub);
originalXml.Save(path);
I wanted to create very distinctive and vibrant colors (for graphing). For anything serious, hsl is a better method than rgb. If necessary, you can convert hsl to rgb as already mentioned by others.
color_generator = () => hsl (360*Math.random(), 0.5 + Math.random()/2, 0.5)
It creates a very nice spectrum of bright and vivid colors but the problem is that in usual color spectrum red, green, blue shades are way more dominant than yellow, cyan, and purple. So, I transformed the hue through acos function. The technical reason is very boring, so I skip it but you can dig in wiki.
color_generator = () => {
let color_section = Math.floor(Math.random()/0.33) // there are three section in full spectrum
let transformed_hue = Math.acos(2*Math.random() - 1)/3.14 // transform so secondary colors would be as dominant as the primary colors
let hue = 120*color_section + 120*transformed_hue
return hsl(hue, 0.5 + Math.random()/2, 0.5)
}
The result is the best color spectrum I had after experimenting with many other methods.
References:
This will also give external links an absolute path without having to use php.ini
<?php
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "http://www.your_external_website.com");
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
$result = curl_exec($ch);
curl_close($ch);
$result = preg_replace("#(<\s*a\s+[^>]*href\s*=\s*[\"'])(?!http)([^\"'>]+)([\"'>]+)#",'$1http://www.your_external_website.com/$2$3', $result);
echo $result
?>
This is an old problem with some good information. But what I just found is that using a FQDN turns off the Compat mode in IE 9 - 11.
Example. I have the compat problem with
http://lrmstst01:8080/JavaWeb/login.do
but the problems go away with
http://lrmstst01.mydomain.int:8080/JavaWeb/login.do
NB: The .int is part of our internal domain
Firstly you don't do this in your view. You do it in the controller and return a view model to the view so that the view doesn't need to care about custom HTTP headers but just displaying data on the view model:
public ActionResult Index()
{
var xyzComponent = Request.Headers["xyzComponent"];
var model = new MyModel
{
IsCustomHeaderSet = (xyzComponent != null)
}
return View(model);
}
This has been discussed on SO multiple times. Here are a few links to get you started:
SO: Capturing image from webcam in java?
openCVF applet: http://www.colorfulwolf.com/blog/2011/07/05/accessing-the-webcam-from-inside-a-java-applet/
config: http://ganeshtiwaridotcomdotnp.blogspot.in/2011/12/opencv-javacv-eclipse-project.html
With the latest NodeJS you can experiment with this monkey patch:
const http = require("http");
const originalOnSocket = http.ClientRequest.prototype.onSocket;
require("http").ClientRequest.prototype.onSocket = function(socket) {
const that = this;
socket.setTimeout(this.timeout ? this.timeout : 3000);
socket.on('timeout', function() {
that.abort();
});
originalOnSocket.call(this, socket);
};
You should try PyDev plug in for Eclipse. I tried alot of editors/IDE's to use with python, but the only one i liked the most is the PyDev plugin for Eclipse. It has code completion, debugger and many other nice features. Plus both are free.
Try:
var objDate = new Date("10/11/2009");
var strDate =
objDate.toLocaleString("en", { day: "numeric" }) + ' ' +
objDate.toLocaleString("en", { month: "long" }) + ' ' +
objDate.toLocaleString("en", { year: "numeric"});
First of all you should know which statements are affected by the automatic semicolon insertion (also known as ASI for brevity):
var
statementdo-while
statementcontinue
statementbreak
statementreturn
statementthrow
statementThe concrete rules of ASI, are described in the specification §11.9.1 Rules of Automatic Semicolon Insertion
Three cases are described:
LineTerminator
.}
e.g.:
{ 1
2 } 3
is transformed to
{ 1
;2 ;} 3;
The NumericLiteral
1
meets the first condition, the following token is a line terminator.
The 2
meets the second condition, the following token is }
.
e.g.:
a = b
++c
is transformed to:
a = b;
++c;
Restricted productions:
UpdateExpression :
LeftHandSideExpression [no LineTerminator here] ++
LeftHandSideExpression [no LineTerminator here] --
ContinueStatement :
continue ;
continue [no LineTerminator here] LabelIdentifier ;
BreakStatement :
break ;
break [no LineTerminator here] LabelIdentifier ;
ReturnStatement :
return ;
return [no LineTerminator here] Expression ;
ThrowStatement :
throw [no LineTerminator here] Expression ;
ArrowFunction :
ArrowParameters [no LineTerminator here] => ConciseBody
YieldExpression :
yield [no LineTerminator here] * AssignmentExpression
yield [no LineTerminator here] AssignmentExpression
The classic example, with the ReturnStatement
:
return
"something";
is transformed to
return;
"something";
I had a problem like this whereby I had specified the width of my Window, but had the height set to Auto
. The child DockPanel
had it's VerticalAlignment
set to Top and the Window had it's VerticalContentAlignment set to Top, yet the Window would still be much taller than the contents.
Using Snoop, I discovered that the ContentPresenter
within the Window (part of the Window, not something I had put there) has it's VerticalAlignment
set to Stretch
and can't be changed without retemplating the entire Window!
After a lot of frustration, I discovered the SizeToContent
property - you can use this to specify whether you want the Window to size vertically, horizontally or both, according to the size of the contents - everything is sizing nicely now, I just can't believe it took me so long to find that property!
To get the boolean value for the hit on the ip
public Boolean getInetAddressByName(String name)
{
AsyncTask<String, Void, Boolean> task = new AsyncTask<String, Void, Boolean>()
{
@Override
protected Boolean doInBackground(String... params) {
try
{
return InetAddress.getByName(params[0]).isReachable(2000);
}
catch (Exception e)
{
return null;
}
}
};
try {
return task.execute(name).get();
}
catch (InterruptedException e) {
return null;
}
catch (ExecutionException e) {
return null;
}
}
Solution irrespective of different jurisdictions having different holidays:
If you need to find the right id within a table, you can use this snippet. The Table model is a sqlalchemy model and the dates to search from are in the field day.
def last_relevant_date(db: Session, given_date: date) -> int:
available_days = (db.query(Table.id, Table.day)
.order_by(desc(Table.day))
.limit(100).all())
close_dates = pd.DataFrame(available_days)
close_dates['delta'] = close_dates['day'] - given_date
past_dates = (close_dates
.loc[close_dates['delta'] < pd.Timedelta(0, unit='d')])
table_id = int(past_dates.loc[past_dates['delta'].idxmax()]['id'])
return table_id
This is not a solution that I would recommend when you have to convert in bulk. It is rather generic and expensive as you are not using joins. Moreover, it assumes that you have a relevant day that is one of the 100 most recent days in the model Table. So it tackles data input that may have different dates.
Set the id
attribute of the input
to txtJob
. Your browser is acting quirky when you call getElementById
.
I want to add to Michael Berkowski's answer that this can also happen if the array's order is reversed, in which case it's a bit trickier to observe the issue, because in the json object, the order will be ordered ascending.
For example:
[
3 => 'a',
2 => 'b',
1 => 'c',
0 => 'd'
]
Will return:
{
0: 'd',
1: 'c',
2: 'b',
3: 'a'
}
So the solution in this case, is to use array_reverse
before encoding it to json
It's possible if you keep in object and filter it in short way.
<select id="driver_id">
<option val="1" class="team_opion option_21">demo</option>
<option val="2" class="team_opion option_21">xyz</option>
<option val="3" class="team_opion option_31">ab</option>
</select>
-
team_id= 31;
var element = $("#driver_id");
originalElement = element.clone(); // keep original element, make it global
element.find('option').remove();
originalElement.find(".option_"+team_id).each(function() { // change find with your needs
element.append($(this)["0"].outerHTML); // append found options
});
For application on all the anchor tags, use
CSS
a:visited{
color:blue;
}
For application on only some of the anchor tags, use
CSS
.linkcolor a:visited{
color:blue;
}
HTML
<span class="linkcolor"><a href="http://stackoverflow.com/" target="_blank">Go to Home</a></span>
Given this problem the Activator will work when there is a parameterless ctor. If this is a constraint consider using
System.Runtime.Serialization.FormatterServices.GetSafeUninitializedObject()
Here are some use full delete operations for mongodb using mongo shell
To delete particular document in collections: db.mycollection.remove( {name:"stack"} )
To delete all documents in collections: db.mycollection.remove()
To delete collection : db.mycollection.drop()
to delete database :
first go to that database by use mydb
command and then
db.dropDatabase()
directly from command prompt or blash : mongo mydb --eval "db.dropDatabase()
@Synxmax's answer is correct when using a Service
and the MediaPlayer
class, however you also need to declare the Service
in the Manifest for this to work, like so:
<service
android:enabled="true"
android:name="com.package.name.BackgroundSoundService" />
strtok()
is a bad ideaDo not use strtok()
in normal code, strtok()
uses static
variables which have some problems. There are some use cases on embedded microcontrollers where static
variables make sense but avoid them in most other cases. strtok()
behaves unexpected when more than 1 thread uses it, when it is used in a interrupt or when there are some other circumstances where more than one input is processed between successive calls to strtok()
.
Consider this example:
#include <stdio.h>
#include <string.h>
//Splits the input by the / character and prints the content in between
//the / character. The input string will be changed
void printContent(char *input)
{
char *p = strtok(input, "/");
while(p)
{
printf("%s, ",p);
p = strtok(NULL, "/");
}
}
int main(void)
{
char buffer[] = "abc/def/ghi:ABC/DEF/GHI";
char *p = strtok(buffer, ":");
while(p)
{
printContent(p);
puts(""); //print newline
p = strtok(NULL, ":");
}
return 0;
}
You may expect the output:
abc, def, ghi,
ABC, DEF, GHI,
But you will get
abc, def, ghi,
This is because you call strtok()
in printContent()
resting the internal state of strtok()
generated in main()
. After returning, the content of strtok()
is empty and the next call to strtok()
returns NULL
.
You could use strtok_r()
when you use a POSIX system, this versions does not need static
variables. If your library does not provide strtok_r()
you can write your own version of it. This should not be hard and Stackoverflow is not a coding service, you can write it on your own.
OK, renaming a branch both locally and on the remote is pretty easy!...
If you on the branch, you can easily do:
git branch -m <branch>
or if not, you need to do:
git branch -m <your_old_branch> <your_new_branch>
Then, push deletion to the remote like this:
git push origin <your_old_branch>
Now you done, if you get upstream error while you trying to push, simply do:
git push --set-upstream origin <your_new_branch>
I also create the image below to show the steps in real command line, just follow the steps and you would be good:
The problem will be that you cannot represent 0.575 exactly as a binary floating point number (eg a double). Though I don't know exactly it seems that the representation closest is probably just a bit lower and so when rounding it uses the true representation and rounds down.
If you want to avoid this problem then use a more appropriate data type. decimal
will do what you want:
Math.Round(0.575M, 2, MidpointRounding.AwayFromZero)
Result: 0.58
The reason that 0.75 does the right thing is that it is easy to represent in binary floating point since it is simple 1/2 + 1/4 (ie 2^-1 +2^-2). In general any finite sum of powers of two can be represented in binary floating point. Exceptions are when your powers of 2 span too great a range (eg 2^100+2 is not exactly representable).
Edit to add:
Formatting doubles for output in C# might be of interest in terms of understanding why its so hard to understand that 0.575 is not really 0.575. The DoubleConverter in the accepted answer will show that 0.575 as an Exact String is 0.5749999999999999555910790149937383830547332763671875
You can see from this why rounding give 0.57.
-- Please look into these.
select FORMAT(1, 'd4');
select FORMAT(2, 'd4');
select FORMAT(12, 'd4');
select FORMAT(123, 'd4');
select FORMAT(1234, 'd4');
-- I hope these would help you
VS 2012/13 Win 7 64 bit gacutil.exe is located in
C:\Program Files (x86)\Microsoft SDKs\Windows\v8.0A\bin\NETFX 4.0 Tools
Git 1.8.2 features a new option ,--remote
, that will enable exactly this behavior. Running
git submodule update --rebase --remote
will fetch the latest changes from upstream in each submodule, rebase them, and check out the latest revision of the submodule. As the documentation puts it:
--remote
This option is only valid for the update command. Instead of using the superproject’s recorded SHA-1 to update the submodule, use the status of the submodule’s remote-tracking branch.
This is equivalent to running git pull
in each submodule, which is generally exactly what you want.
(This was copied from this answer.)
This seems ok....
var b = list[y];
list[y] = list[x];
list[x] = b;
Howerver using
var b = list[y];
means a b variable is going to be to be present for the rest of the scope. This can potentially lead to a memory leak. Unlikely, but still better to avoid.
Maybe a good idea to put this into Array.prototype.swap
Array.prototype.swap = function (x,y) {
var b = this[x];
this[x] = this[y];
this[y] = b;
return this;
}
which can be called like:
list.swap( x, y )
This is a clean approach to both avoiding memory leaks and DRY.
byte messageDigest[] = algorithm.digest();
StringBuffer hexString = new StringBuffer();
for (int i = 0; i < messageDigest.length; i++) {
String hexByte = Integer.toHexString(0xFF & messageDigest[i]);
int numDigits = 2 - hexByte.length();
while (numDigits-- > 0) {
hexString.append('0');
}
hexString.append(hexByte);
}
Now google chrome has introduce new feature. By Using this feature You can edit you code in chrome browse. (Permanent change on code location)
For that Press F12 --> Source Tab -- (right side) --> File System - in that please select your location of code. and then chrome browser will ask you permission and after that code will be sink with green color. and you can modify your code and it will also reflect on you code location (It means it will Permanent change)
Thanks
The problem is not that Bar and Bah have to copy 387 constructors, the problem is that Foo has 387 constructors. Foo clearly does too many things - refactor quick! Also, unless you have a really good reason to have values set in the constructor (which, if you provide a parameterless constructor, you probably don't), I'd recommend using property getting/setting.
I know this is hyper-optimization land, but it seemed like a good excuse to kick the wheels of BenchmarkDotNet
. The result of this test (on .NET Core even) is that Substring
is ever so slightly faster than Remove
, in this sample test: 19.37ns vs 22.52ns for Remove
. So some ~16% faster.
using System;
using BenchmarkDotNet.Attributes;
namespace BenchmarkFun
{
public class StringSubstringVsRemove
{
public readonly string SampleString = " My name is Daffy Duck.";
[Benchmark]
public string StringSubstring() => SampleString.Substring(1);
[Benchmark]
public string StringRemove() => SampleString.Remove(0, 1);
public void AssertTestIsValid()
{
string subsRes = StringSubstring();
string remvRes = StringRemove();
if (subsRes == null
|| subsRes.Length != SampleString.Length - 1
|| subsRes != remvRes) {
throw new Exception("INVALID TEST!");
}
}
}
class Program
{
static void Main()
{
// let's make sure test results are really equal / valid
new StringSubstringVsRemove().AssertTestIsValid();
var summary = BenchmarkRunner.Run<StringSubstringVsRemove>();
}
}
}
Results:
BenchmarkDotNet=v0.11.4, OS=Windows 10.0.17763.253 (1809/October2018Update/Redstone5)
Intel Core i7-6700HQ CPU 2.60GHz (Skylake), 1 CPU, 8 logical and 4 physical cores
.NET Core SDK=3.0.100-preview-010184
[Host] : .NET Core 3.0.0-preview-27324-5 (CoreCLR 4.6.27322.0, CoreFX 4.7.19.7311), 64bit RyuJIT
DefaultJob : .NET Core 3.0.0-preview-27324-5 (CoreCLR 4.6.27322.0, CoreFX 4.7.19.7311), 64bit RyuJIT
| Method | Mean | Error | StdDev |
|---------------- |---------:|----------:|----------:|
| StringSubstring | 19.37 ns | 0.3940 ns | 0.3493 ns |
| StringRemove | 22.52 ns | 0.4062 ns | 0.3601 ns |
I was getting this error; I just put a WHERE
clause for the field which was used within count
clause. it solved the issue. Note: if null value exist, check whether its critical for the report, as its excluded in the count.
Old query:
select city, Count(Emp_ID) as Emp_Count
from Emp_DB
group by city
New query:
select city, Count(Emp_ID) as Emp_Count
from Emp_DB
where Emp_ID is not null
group by city
Look at to vwphillips' post from 03-06-2010, 03:35 PM in http://www.codingforums.com/archive/index.php/t-190887.html
<html>
<head>
<title></title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<script type="text/javascript">
function Div(id,ud) {
var div=document.getElementById(id);
var h=parseInt(div.style.height)+ud;
if (h>=1){
div.style.height = h + "em"; // I'm using "em" instead of "px", but you can use px like measure...
}
}
</script>
</head>
<body>
<div>
<input type="button" value="+" onclick="Div('my_div', 1);">
<input type="button" value="-" onclick="Div('my_div', -1);"></div>
</div>
<div id="my_div" style="height: 1em; width: 1em; overflow: auto;"></div>
</body>
</html>
This worked for me :)
Best regards!
There is a wiki page here.
There are two ways the JVM can be started: by forking it in a separate process from the Eclipse launcher, or by loading it in-process using the JNI invocation API.
If you specify -vm
with a path to the actual java(w).exe, then the JVM will be forked in a separate process. You can also specify -vm
with a path to the jvm.dll so that the JVM is loaded in the same process:
-vm
D:/work/Java/jdk1.6.0_13/jre/bin/client/jvm.dll
You can also specify the path to the jre/bin folder itself.
Note also, the general format of the eclipse.ini is each argument on a separate line. It won't work if you put the "-vm" and the path on the same line.
I was getting the same error in python 3.4.3 too and I tried using the solutions mentioned here and elsewhere with no success.
Microsoft makes a compiler available for Python 2.7 but it didn't do me much good since I am on 3.4.3.
Python since 3.3 has transitioned over to 2010 and you can download and install Visual C++ 2010 Express for free here: https://www.visualstudio.com/downloads/download-visual-studio-vs#d-2010-express
Here is the official blog post talking about the transition to 2010 for 3.3: http://blog.python.org/2012/05/recent-windows-changes-in-python-33.html
Because previous versions gave a different error for vcvarsall.bat I would double check the version you are using with "pip -V"
C:\Users\B>pip -V
pip 6.0.8 from C:\Python34\lib\site-packages (python 3.4)
As a side note, I too tried using the latest version of VC++ (2013) first but it required installing 2010 express.
From that point forward it should work for anyone using the 32 bit version, if you are on the 64 bit version you will then get the ValueError: ['path'] message because VC++ 2010 doesn't have a 64 bit compuler. For that you have to get the Microsoft SDK 7.1. I can't hyperlink the instruction for 64 bit because I am limited to 2 links per post but its at
Python PIP has issues with path for MS Visual Studio 2010 Express for 64-bit install on Windows 7
If you can't rename the original file, you could also use a symlink:
ln -s foo-bar.py foo_bar.py
Then you can just:
from foo_bar import *
Best not to mess with msysObjects (IMHO).
CurrentDB.TableDefs
CurrentDB.QueryDefs
CurrentProject.AllForms
CurrentProject.AllReports
CurrentProject.AllMacros
here is my solution thanks to a closure :
function geoloc(success, fail){
var is_echo = false;
if(navigator && navigator.geolocation) {
navigator.geolocation.getCurrentPosition(
function(pos) {
if (is_echo){ return; }
is_echo = true;
success(pos.coords.latitude,pos.coords.longitude);
},
function() {
if (is_echo){ return; }
is_echo = true;
fail();
}
);
} else {
fail();
}
}
function success(lat, lng){
alert(lat + " , " + lng);
}
function fail(){
alert("failed");
}
geoloc(success, fail);
Axes sizing in MATLAB can be a bit tricky sometimes. You are correct to suspect the paper sizing properties as one part of the problem. Another is the automatic margins MATLAB calculates. Fortunately, there are settable axes properties that allow you to circumvent these margins. You can reset the margins to be just big enough for axis labels using a combination of the Position
and TightInset
properties which are explained here. Try this:
>> h = figure; >> axes; >> set(h, 'InvertHardcopy', 'off'); >> saveas(h, 'WithMargins.pdf');
and you'll get a PDF that looks like:
but now do this:
>> tightInset = get(gca, 'TightInset'); >> position(1) = tightInset(1); >> position(2) = tightInset(2); >> position(3) = 1 - tightInset(1) - tightInset(3); >> position(4) = 1 - tightInset(2) - tightInset(4); >> set(gca, 'Position', position); >> saveas(h, 'WithoutMargins.pdf');
and you'll get:
Just to add my solution to the list..
I wanted a semi transparent bottom border that extends past the original shape (So the semi-transparent border was outside the parent rectangle).
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item>
<shape android:shape="rectangle" >
<solid android:color="#33000000" /> <!-- Border colour -->
</shape>
</item>
<item android:bottom="2dp" >
<shape android:shape="rectangle" >
<solid android:color="#164586" />
</shape>
</item>
</layer-list>
Which gives me;
Also, don't forget you need to add "-Xdebug" flag in app JAVA_OPTS if you want connect in debug mode.
Actually, all of those examples on the web wherein the common content/file type like "js", "css", "img", etc is been used as library name are misleading.
To start, let's look at how existing JSF implementations like Mojarra and MyFaces and JSF component libraries like PrimeFaces and OmniFaces use it. No one of them use resource libraries this way. They use it (under the covers, by @ResourceDependency
or UIViewRoot#addComponentResource()
) the following way:
<h:outputScript library="javax.faces" name="jsf.js" />
<h:outputScript library="primefaces" name="jquery/jquery.js" />
<h:outputScript library="omnifaces" name="omnifaces.js" />
<h:outputScript library="omnifaces" name="fixviewstate.js" />
<h:outputScript library="omnifaces.combined" name="[dynamicname].js" />
<h:outputStylesheet library="primefaces" name="primefaces.css" />
<h:outputStylesheet library="primefaces-aristo" name="theme.css" />
<h:outputStylesheet library="primefaces-vader" name="theme.css" />
It should become clear that it basically represents the common library/module/theme name where all of those resources commonly belong to.
This way it's so much easier to specify and distinguish where those resources belong to and/or are coming from. Imagine that you happen to have a primefaces.css
resource in your own webapp wherein you're overriding/finetuning some default CSS of PrimeFaces; if PrimeFaces didn't use a library name for its own primefaces.css
, then the PrimeFaces own one wouldn't be loaded, but instead the webapp-supplied one, which would break the look'n'feel.
Also, when you're using a custom ResourceHandler
, you can also apply more finer grained control over resources coming from a specific library when library
is used the right way. If all component libraries would have used "js" for all their JS files, how would the ResourceHandler
ever distinguish if it's coming from a specific component library? Examples are OmniFaces CombinedResourceHandler
and GraphicResourceHandler
; check the createResource()
method wherein the library is checked before delegating to next resource handler in chain. This way they know when to create CombinedResource
or GraphicResource
for the purpose.
Noted should be that RichFaces did it wrong. It didn't use any library
at all and homebrewed another resource handling layer over it and it's therefore impossible to programmatically identify RichFaces resources. That's exactly the reason why OmniFaces CombinedResourceHander
had to introduce a reflection-based hack in order to get it to work anyway with RichFaces resources.
Your own webapp does not necessarily need a resource library. You'd best just omit it.
<h:outputStylesheet name="css/style.css" />
<h:outputScript name="js/script.js" />
<h:graphicImage name="img/logo.png" />
Or, if you really need to have one, you can just give it a more sensible common name, like "default" or some company name.
<h:outputStylesheet library="default" name="css/style.css" />
<h:outputScript library="default" name="js/script.js" />
<h:graphicImage library="default" name="img/logo.png" />
Or, when the resources are specific to some master Facelets template, you could also give it the name of the template, so that it's easier to relate each other. In other words, it's more for self-documentary purposes. E.g. in a /WEB-INF/templates/layout.xhtml
template file:
<h:outputStylesheet library="layout" name="css/style.css" />
<h:outputScript library="layout" name="js/script.js" />
And a /WEB-INF/templates/admin.xhtml
template file:
<h:outputStylesheet library="admin" name="css/style.css" />
<h:outputScript library="admin" name="js/script.js" />
For a real world example, check the OmniFaces showcase source code.
Or, when you'd like to share the same resources over multiple webapps and have created a "common" project for that based on the same example as in this answer which is in turn embedded as JAR in webapp's /WEB-INF/lib
, then also reference it as library (name is free to your choice; component libraries like OmniFaces and PrimeFaces also work that way):
<h:outputStylesheet library="common" name="css/style.css" />
<h:outputScript library="common" name="js/script.js" />
<h:graphicImage library="common" name="img/logo.png" />
Another main advantage is that you can apply resource library versioning the right way on resources provided by your own webapp (this doesn't work for resources embedded in a JAR). You can create a direct child subfolder in the library folder with a name in the \d+(_\d+)*
pattern to denote the resource library version.
WebContent
|-- resources
| `-- default
| `-- 1_0
| |-- css
| | `-- style.css
| |-- img
| | `-- logo.png
| `-- js
| `-- script.js
:
When using this markup:
<h:outputStylesheet library="default" name="css/style.css" />
<h:outputScript library="default" name="js/script.js" />
<h:graphicImage library="default" name="img/logo.png" />
This will generate the following HTML with the library version as v
parameter:
<link rel="stylesheet" type="text/css" href="/contextname/javax.faces.resource/css/style.css.xhtml?ln=default&v=1_0" />
<script type="text/javascript" src="/contextname/javax.faces.resource/js/script.js.xhtml?ln=default&v=1_0"></script>
<img src="/contextname/javax.faces.resource/img/logo.png.xhtml?ln=default&v=1_0" alt="" />
So, if you have edited/updated some resource, then all you need to do is to copy or rename the version folder into a new value. If you have multiple version folders, then the JSF ResourceHandler
will automatically serve the resource from the highest version number, according to numerical ordering rules.
So, when copying/renaming resources/default/1_0/*
folder into resources/default/1_1/*
like follows:
WebContent
|-- resources
| `-- default
| |-- 1_0
| | :
| |
| `-- 1_1
| |-- css
| | `-- style.css
| |-- img
| | `-- logo.png
| `-- js
| `-- script.js
:
Then the last markup example would generate the following HTML:
<link rel="stylesheet" type="text/css" href="/contextname/javax.faces.resource/css/style.css.xhtml?ln=default&v=1_1" />
<script type="text/javascript" src="/contextname/javax.faces.resource/js/script.js.xhtml?ln=default&v=1_1"></script>
<img src="/contextname/javax.faces.resource/img/logo.png.xhtml?ln=default&v=1_1" alt="" />
This will force the webbrowser to request the resource straight from the server instead of showing the one with the same name from the cache, when the URL with the changed parameter is been requested for the first time. This way the endusers aren't required to do a hard refresh (Ctrl+F5 and so on) when they need to retrieve the updated CSS/JS resource.
Please note that library versioning is not possible for resources enclosed in a JAR file. You'd need a custom ResourceHandler
. See also How to use JSF versioning for resources in jar.
That's because you shouldn't do it (at least with an immutable list). If you really really need to append an element to the end of a data structure and this data structure really really needs to be a list and this list really really has to be immutable then do eiher this:
(4 :: List(1,2,3).reverse).reverse
or that:
List(1,2,3) ::: List(4)
There is no way to get the memory address of a value in Python 2.7 in general. In Jython or PyPy, the implementation doesn't even know your value's address (and there's not even a guarantee that it will stay in the same place—e.g., the garbage collector is allowed to move it around if it wants).
However, if you only care about CPython, id
is already returning the address. If the only issue is how to format that integer in a certain way… it's the same as formatting any integer:
>>> hex(33)
0x21
>>> '{:#010x}'.format(33) # 32-bit
0x00000021
>>> '{:#018x}'.format(33) # 64-bit
0x0000000000000021
… and so on.
However, there's almost never a good reason for this. If you actually need the address of an object, it's presumably to pass it to ctypes
or similar, in which case you should use ctypes.addressof
or similar.
You should use this library for multi upload in CI https://github.com/stvnthomas/CodeIgniter-Multi-Upload
Short answer -
Deleted .m2 folder in {user.home}
. E.g. in windows 10 user home is C:\Users\user1
. Re-build your project using mvn clean package
. Only those dependencies would remain, which are required by the projects.
Long Answer - .m2 folder is just like a normal folder and the content of the folder is built from different projects. I think there is no way to figure out automatically that which library is "old". In fact old is a vague word. There could be so many reasons when a previous version of a library is used in a project, hence determining which one is unused is not possible.
All you could do, is to delete the .m2 folder and re-build all of your projects and then the folder would automatically build with all the required library.
If you are concern about only a particular version of a library to be used in all the projects; it is important that the project's pom should also update to latest version. i.e. if different POMs refer different versions of the library, all will get downloaded in .m2.
I got this error/exception in Visual Studio 2010 when I changed my build in the Configuration Manager dialog box from "x86" to "Any CPU". This OLEDB database driver I understand only works in x86 and is not 64bit compatible. Changing the build configuration back to x86 solved the problem for me.
Someone else mentioned boost but I just wanted to add the actual code to do this:
#include <boost/filesystem.hpp>
using std::string;
string texture = foo->GetTextureFilename();
string file_extension = boost::filesystem::extension(texture);
cout << "attempting load texture named " << texture
<< " whose extensions seems to be "
<< file_extension << endl;
// Use JPEG or PNG loader function, or report invalid extension
One thing that I think is missing from the answers on here, and please correct me if I am wrong, but the foreign keys need to be indexed on the pivot table. At least in mysql that seems to be the case.
public function up()
{
Schema::create('image_post', function (Blueprint $table) {
$table->engine = 'InnoDB';
$table->increments('id');
$table->integer('image_id')->unsigned()->index();
$table->integer('post_id')->unsigned()->index();
$table->timestamps();
});
Schema::table('image_post', function($table) {
$table->foreign('image_id')->references('id')->on('image')->onDelete('cascade');
$table->foreign('post_id')->references('id')->on('post')->onDelete('cascade');
});
}
For the 24-hour time, you need to use HH24
instead of HH
.
For the 12-hour time, the AM/PM indicator is written as A.M.
(if you want periods in the result) or AM
(if you don't). For example:
SELECT invoice_date,
TO_CHAR(invoice_date, 'DD-MM-YYYY HH24:MI:SS') "Date 24Hr",
TO_CHAR(invoice_date, 'DD-MM-YYYY HH:MI:SS AM') "Date 12Hr"
FROM invoices
;
For more information on the format models you can use with TO_CHAR
on a date, see http://docs.oracle.com/cd/E16655_01/server.121/e17750/ch4datetime.htm#NLSPG004.
If you like the method in the link you've posted, have a look at Git Flow.
It's a set of scripts he created for that workflow.
But to answer your question:
$ git checkout -b myFeature dev
Creates MyFeature branch off dev. Do your work and then
$ git commit -am "Your message"
Now merge your changes to dev without a fast-forward
$ git checkout dev
$ git merge --no-ff myFeature
Now push changes to the server
$ git push origin dev
$ git push origin myFeature
And you'll see it how you want it.
It's a pointer, so instead try:
a->f();
Basically the operator .
(used to access an object's fields and methods) is used on objects and references, so:
A a;
a.f();
A& ref = a;
ref.f();
If you have a pointer type, you have to dereference it first to obtain a reference:
A* ptr = new A();
(*ptr).f();
ptr->f();
The a->b
notation is usually just a shorthand for (*a).b
.
The operator->
can be overloaded, which is notably used by smart pointers. When you're using smart pointers, then you also use ->
to refer to the pointed object:
auto ptr = make_unique<A>();
ptr->f();
To get a definitive reason, you'd need to ask the designer(s) of that API.
But one possible reason is that the intent of a (hypothetical) nextChar
would not fit into the scanning model very well.
If nextChar()
to behaved like read()
on a Reader
and simply returned the next unconsumed character from the scanner, then it is behaving inconsistently with the other next<Type>
methods. These skip over delimiter characters before they attempt to parse a value.
If nextChar()
to behaved like (say) nextInt
then:
the delimiter skipping would be "unexpected" for some folks, and
there is the issue of whether it should accept a single "raw" character, or a sequence of digits that are the numeric representation of a char
, or maybe even support escaping or something1.
No matter what choice they made, some people wouldn't be happy. My guess is that the designers decided to stay away from the tarpit.
1 - Would vote strongly for the raw character approach ... but the point is that there are alternatives that need to be analysed, etc.
Pure Vanilla Javascript, and full backward compatibility
function isObjectDefined (Obj) {_x000D_
if (Obj === null || typeof Obj !== 'object' ||_x000D_
Object.prototype.toString.call(Obj) === '[object Array]') {_x000D_
return false_x000D_
} else {_x000D_
for (var prop in Obj) {_x000D_
if (Obj.hasOwnProperty(prop)) {_x000D_
return true_x000D_
}_x000D_
}_x000D_
return JSON.stringify(Obj) !== JSON.stringify({})_x000D_
}_x000D_
}_x000D_
_x000D_
console.log(isObjectDefined()) // false_x000D_
console.log(isObjectDefined('')) // false_x000D_
console.log(isObjectDefined(1)) // false_x000D_
console.log(isObjectDefined('string')) // false_x000D_
console.log(isObjectDefined(NaN)) // false_x000D_
console.log(isObjectDefined(null)) // false_x000D_
console.log(isObjectDefined({})) // false_x000D_
console.log(isObjectDefined([])) // false_x000D_
console.log(isObjectDefined({a: ''})) // true
_x000D_
I had a similar problem when using TFS 2017. I was not able to push or pull GIT repositories. Eventually I reinstalled TFS 2017, making sure that I installed TFS 2017 with an SSH Port different from 22 (in my case, I chose 8022). After that, push and pull became possible against TFS using SSH.
Nurik's answer was very helpful, but I couldn't get it to work until I found this. In short, if you're using the compatibility library (eg SupportFragmentManager instead of FragmentManager), the syntax of the XML animation files will be different.
You can see my blog post. You can set custom height of Textblock from codebehind. For setting custom height you need to set it inside in a border or stackpanel
http://ciintelligence.blogspot.com/2011/02/wpf-textblock-vertical-alignment-with.html
In objective c: This solved my problem when presenting viewcontroller on top of mpmovieplayer
- (UIViewController*) topMostController
{
UIViewController *topController = [UIApplication sharedApplication].keyWindow.rootViewController;
while (topController.presentedViewController) {
topController = topController.presentedViewController;
}
return topController;
}
The main difference between C++ and Javascript is that C++ is a static-typed language, wile javascript is dynamic.
In dynamic typed languages a variable can contain whatever thing, and its type is given by the value it holds, moment by moment. In static typed languages the type of a variable is declared, and cannot change.
There can be dynamic dispatch and object composition and subtyping (inheritance and virtual functions) as well as static-dispatch and supertyping (via template CRTP), but in any case the type of the variable must be known to the compiler.
If you are in the position to don't know what it is or could be, it is because you designed something as the language has a dynamic type-system.
If that's the case you had better to re-think your design, since it is going into a land not natural for the language you are using (most like going in a motorway with a caterpillar, or in the water with a car)
in the office doc: https://developer.android.com/reference/android/support/constraint/ConstraintLayout
When a dimension is set to MATCH_CONSTRAINT, the default behavior is to have the resulting size take all the available space.
Using 0dp, which is the equivalent of "MATCH_CONSTRAINT"
Important: MATCH_PARENT is not recommended for widgets contained in a ConstraintLayout. Similar behavior can be defined by using MATCH_CONSTRAINT with the corresponding left/right or top/bottom constraints being set to "parent"
You can try with this code (Same case)
chaine1 + chaine2;
I suggest you also (I prefer this) the string.concat method
There is a great implementation of NavigationDrawer
that follows the Google Material Design Guidelines (and compatible down to API 10) - The MaterialDrawer library (link to GitHub). As of time of writing, May 2017, it's actively supported.
It's available in Maven Central repo. Gradle dependency setup:
compile 'com.mikepenz:materialdrawer:5.9.1'
Maven dependency setup:
<dependency>
<groupId>com.mikepenz</groupId>
<artifactId>materialdrawer</artifactId>
<version>5.9.1</version>
</dependency>
1) setState
actions are asynchronous and are batched for performance gains. This is explained in the documentation of setState
.
setState() does not immediately mutate this.state but creates a pending state transition. Accessing this.state after calling this method can potentially return the existing value. There is no guarantee of synchronous operation of calls to setState and calls may be batched for performance gains.
2) Why would they make setState async as JS is a single threaded language and this setState
is not a WebAPI or server call?
This is because setState
alters the state and causes rerendering. This can be an expensive operation and making it synchronous might leave the browser unresponsive.
Thus the setState calls are asynchronous as well as batched for better UI experience and performance.
I explored another two ways to accomplish this task. It may be helpful for someone.
The first one is easy:
In [25]: a = []
In [26]: s = 'foobar'
In [27]: a += s
In [28]: a
Out[28]: ['f', 'o', 'o', 'b', 'a', 'r']
And the second one use map
and lambda
function. It may be appropriate for more complex tasks:
In [36]: s = 'foobar12'
In [37]: a = map(lambda c: c, s)
In [38]: a
Out[38]: ['f', 'o', 'o', 'b', 'a', 'r', '1', '2']
For example
# isdigit, isspace or another facilities such as regexp may be used
In [40]: a = map(lambda c: c if c.isalpha() else '', s)
In [41]: a
Out[41]: ['f', 'o', 'o', 'b', 'a', 'r', '', '']
See python docs for more methods
Modify the open_basedir settings in your hosting account and set them to none. Find the open_basedir setting given under 'PHP Settings' area of your Plesk/cPanel. Set it to 'none' from the dropdown given there. I have shown them in the Plesk panel picture.
If you have reason to avoid the use of the datetime
module, then these functions will work.
def is_leap_year(year):
""" if year is a leap year return True
else return False """
if year % 100 == 0:
return year % 400 == 0
return year % 4 == 0
def doy(Y,M,D):
""" given year, month, day return day of year
Astronomical Algorithms, Jean Meeus, 2d ed, 1998, chap 7 """
if is_leap_year(Y):
K = 1
else:
K = 2
N = int((275 * M) / 9.0) - K * int((M + 9) / 12.0) + D - 30
return N
def ymd(Y,N):
""" given year = Y and day of year = N, return year, month, day
Astronomical Algorithms, Jean Meeus, 2d ed, 1998, chap 7 """
if is_leap_year(Y):
K = 1
else:
K = 2
M = int((9 * (K + N)) / 275.0 + 0.98)
if N < 32:
M = 1
D = N - int((275 * M) / 9.0) + K * int((M + 9) / 12.0) + 30
return Y, M, D
If you don't mind using sed then,
$ cat test this is line 1 $ sed -i '$ a\this is line 2 without redirection' test $ cat test this is line 1 this is line 2 without redirection
As the documentation may be a bit long to go through, some explanations :
-i
means an inplace transformation, so all changes will occur in the file you specify$
is used to specify the last linea
means append a line after \
is simply used as a delimiterThe question is somewhat ambiguous -- I'm not sure what you mean by "view". If you are trying to query the type of a native Python object, @atzz's answer will steer you in the right direction.
However, if you are trying to generate Python objects that have the semantics of primitive C-types, (such as uint32_t
, int16_t
), use the struct
module. You can determine the number of bits in a given C-type primitive thusly:
>>> struct.calcsize('c') # char
1
>>> struct.calcsize('h') # short
2
>>> struct.calcsize('i') # int
4
>>> struct.calcsize('l') # long
4
This is also reflected in the array
module, which can make arrays of these lower-level types:
>>> array.array('c').itemsize # char
1
The maximum integer supported (Python 2's int
) is given by sys.maxint.
>>> import sys, math
>>> math.ceil(math.log(sys.maxint, 2)) + 1 # Signedness
32.0
There is also sys.getsizeof, which returns the actual size of the Python object in residual memory:
>>> a = 5
>>> sys.getsizeof(a) # Residual memory.
12
For float data and precision data, use sys.float_info:
>>> sys.float_info
sys.floatinfo(max=1.7976931348623157e+308, max_exp=1024, max_10_exp=308, min=2.2250738585072014e-308, min_exp=-1021, min_10_exp=-307, dig=15, mant_dig=53, epsilon=2.2204460492503131e-16, radix=2, rounds=1)
(ANSWER IS IN DOT NET 4.5 and in java, there must be a similar approach exist)
I am from West Bengal in INDIA.
As I understand your problem is ...
You want to produce similar to ' ? ' (It is a letter in Bengali language)
which has Unicode HEX : 0X0985
.
Now if you know this value in respect of your language then how will you produce that language specific Unicode symbol right ?
In Dot Net it is as simple as this :
int c = 0X0985;
string x = Char.ConvertFromUtf32(c);
Now x is your answer. But this is HEX by HEX convert and sentence to sentence conversion is a work for researchers :P
Here you have an example working on py2.6 and py3.2:
from scipy.stats import norm
import matplotlib.mlab as mlab
import matplotlib.pyplot as plt
# read data from a text file. One number per line
arch = "test/Log(2)_ACRatio.txt"
datos = []
for item in open(arch,'r'):
item = item.strip()
if item != '':
try:
datos.append(float(item))
except ValueError:
pass
# best fit of data
(mu, sigma) = norm.fit(datos)
# the histogram of the data
n, bins, patches = plt.hist(datos, 60, normed=1, facecolor='green', alpha=0.75)
# add a 'best fit' line
y = mlab.normpdf( bins, mu, sigma)
l = plt.plot(bins, y, 'r--', linewidth=2)
#plot
plt.xlabel('Smarts')
plt.ylabel('Probability')
plt.title(r'$\mathrm{Histogram\ of\ IQ:}\ \mu=%.3f,\ \sigma=%.3f$' %(mu, sigma))
plt.grid(True)
plt.show()
The answer clearly depends on the JVM implementation. Azul claim that their JVM
can scale ... to more than a 1/2 Terabyte of memory
By "can scale" they appear to mean "runs wells", as opposed to "runs at all".
Easiest way to do this as shown here, using the standard library class bitset.
To emulate the C# feature in a type-safe way, you'd have to write a template wrapper around the bitset, replacing the int arguments with an enum given as a type parameter to the template. Something like:
template <class T, int N>
class FlagSet
{
bitset<N> bits;
FlagSet(T enumVal)
{
bits.set(enumVal);
}
// etc.
};
enum MyFlags
{
FLAG_ONE,
FLAG_TWO
};
FlagSet<MyFlags, 2> myFlag;
There is a way to create "const" variables in Java, but only for specific classes. Just define a class with final properties and subclass it. Then use the base class where you would want to use "const". Likewise, if you need to use "const" methods, add them to the base class. The compiler will not allow you to modify what it thinks is the final methods of the base class, but it will read and call methods on the subclass.
log
simply takes the logarithm (base e
, by default) of each element of the vector.
scale
, with default settings, will calculate the mean and standard deviation of the entire vector, then "scale" each element by those values by subtracting the mean and dividing by the sd. (If you use scale(x, scale=FALSE)
, it will only subtract the mean but not divide by the std deviation.)
Note that this will give you the same values
set.seed(1)
x <- runif(7)
# Manually scaling
(x - mean(x)) / sd(x)
scale(x)
I had a component declared without the styleUrls property, like this:
@Component({
selector: 'app-server',
templateUrl: './server.component.html'
})
instead of:
@Component({
selector: 'app-server',
templateUrl: './server.component.html',
styleUrls: ['./server.component.css']
})
Adding in the styleUrls property solved the issue.
I had this issue before on Xcode 7 cause then i realized it's all about my internet connection it was down and the security check using the internet to make sure your developer account is correct. and when it see no internet it give this error … after i have fixed my internet it works good.
Add:
using System.Linq;
to the top of your file.
And then:
Car[] carList = ...
var carMake =
from item in carList
where item.Model == "bmw"
select item.Make;
or if you prefer the fluent syntax:
var carMake = carList
.Where(item => item.Model == "bmw")
.Select(item => item.Make);
Things to pay attention to:
item.Make
in the select
clause instead if s.Make
as in your code.item
and .Model
in your where
clauseThis worked for me
mImageView.setColorFilter(ContextCompat.getColor(getContext(), R.color.green_500));
It should suffice to say whether bcrypt or SHA-512 (in the context of an appropriate algorithm like PBKDF2) is good enough. And the answer is yes, either algorithm is secure enough that a breach will occur through an implementation flaw, not cryptanalysis.
If you insist on knowing which is "better", SHA-512 has had in-depth reviews by NIST and others. It's good, but flaws have been recognized that, while not exploitable now, have led to the the SHA-3 competition for new hash algorithms. Also, keep in mind that the study of hash algorithms is "newer" than that of ciphers, and cryptographers are still learning about them.
Even though bcrypt as a whole hasn't had as much scrutiny as Blowfish itself, I believe that being based on a cipher with a well-understood structure gives it some inherent security that hash-based authentication lacks. Also, it is easier to use common GPUs as a tool for attacking SHA-2–based hashes; because of its memory requirements, optimizing bcrypt requires more specialized hardware like FPGA with some on-board RAM.
Note: bcrypt is an algorithm that uses Blowfish internally. It is not an encryption algorithm itself. It is used to irreversibly obscure passwords, just as hash functions are used to do a "one-way hash".
Cryptographic hash algorithms are designed to be impossible to reverse. In other words, given only the output of a hash function, it should take "forever" to find a message that will produce the same hash output. In fact, it should be computationally infeasible to find any two messages that produce the same hash value. Unlike a cipher, hash functions aren't parameterized with a key; the same input will always produce the same output.
If someone provides a password that hashes to the value stored in the password table, they are authenticated. In particular, because of the irreversibility of the hash function, it's assumed that the user isn't an attacker that got hold of the hash and reversed it to find a working password.
Now consider bcrypt. It uses Blowfish to encrypt a magic string, using a key "derived" from the password. Later, when a user enters a password, the key is derived again, and if the ciphertext produced by encrypting with that key matches the stored ciphertext, the user is authenticated. The ciphertext is stored in the "password" table, but the derived key is never stored.
In order to break the cryptography here, an attacker would have to recover the key from the ciphertext. This is called a "known-plaintext" attack, since the attack knows the magic string that has been encrypted, but not the key used. Blowfish has been studied extensively, and no attacks are yet known that would allow an attacker to find the key with a single known plaintext.
So, just like irreversible algorithms based cryptographic digests, bcrypt produces an irreversible output, from a password, salt, and cost factor. Its strength lies in Blowfish's resistance to known plaintext attacks, which is analogous to a "first pre-image attack" on a digest algorithm. Since it can be used in place of a hash algorithm to protect passwords, bcrypt is confusingly referred to as a "hash" algorithm itself.
Assuming that rainbow tables have been thwarted by proper use of salt, any truly irreversible function reduces the attacker to trial-and-error. And the rate that the attacker can make trials is determined by the speed of that irreversible "hash" algorithm. If a single iteration of a hash function is used, an attacker can make millions of trials per second using equipment that costs on the order of $1000, testing all passwords up to 8 characters long in a few months.
If however, the digest output is "fed back" thousands of times, it will take hundreds of years to test the same set of passwords on that hardware. Bcrypt achieves the same "key strengthening" effect by iterating inside its key derivation routine, and a proper hash-based method like PBKDF2 does the same thing; in this respect, the two methods are similar.
So, my recommendation of bcrypt stems from the assumptions 1) that a Blowfish has had a similar level of scrutiny as the SHA-2 family of hash functions, and 2) that cryptanalytic methods for ciphers are better developed than those for hash functions.
I just worked through this issue on my service. Here is the error I was receiving:
Service 'EmailSender.Wcf.EmailService' has zero application (non-infrastructure) endpoints. This might be because no configuration file was found for your application, or because no service element matching the service name could be found in the configuration file, or because no endpoints were defined in the service element.
Here are the two steps I used to fix it:
Use the correct fully-qualified class name:
<service behaviorConfiguration="DefaultBehavior" name="EmailSender.Wcf.EmailService">
Enable an endpoint with mexHttpBinding, and most importantly, use the IMetadataExchange contract:
<endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>
Use Maven and use the maven-compiler-plugin to explicitly call the actual correct version JDK javac.exe command, because Maven could be running any version; this also catches the really stupid long standing bug in javac that does not spot runtime breaking class version jars and missing classes/methods/properties when compiling for earlier java versions! This later part could have easily been fixed in Java 1.5+ by adding versioning attributes to new classes, methods, and properties, or separate compiler versioning data, so is a quite stupid oversight by Sun and Oracle.
Fastest way for Android Studio 3.x.x and Android Studio 4.x.x
1.Go to the design tab of the activity layout
2.At the top you should press on the orientation for preview button, there is a option to create a landscape layout (check image), a new folder will be created as your xml layout file for that particular orientation
public static T Runner<T>(Func<T> funcToRun)
{
//Do stuff before running function as normal
return funcToRun();
}
Usage:
var ReturnValue = Runner(() => GetUser(99));
If you want to use classes:
class Singleton {
constructor(name, age) {
this.name = name;
this.age = age;
if(this.constructor.instance)
return this.constructor.instance;
this.constructor.instance = this;
}
}
let x = new Singleton('s', 1);
let y = new Singleton('k', 2);
Output for the above will be:
console.log(x.name, x.age, y.name, y.age) // s 1 s 1
Another way of writing Singleton using function
function AnotherSingleton (name,age) {
this.name = name;
this.age = age;
if(this.constructor.instance)
return this.constructor.instance;
this.constructor.instance = this;
}
let a = new AnotherSingleton('s', 1);
let b = new AnotherSingleton('k', 2);
Output for the above will be:
console.log(a.name, a.age, b.name, b.age) // s 1 s 1
Here are the steps
See following code:
public partial class UserDefinedFunctions
{
[Microsoft.SqlServer.Server.SqlFunction]
public static SqlString Replace2(SqlString inputtext, SqlString filter,SqlString replacewith)
{
string str = inputtext.ToString();
try
{
string pattern = (string)filter;
string replacement = (string)replacewith;
Regex rgx = new Regex(pattern);
string result = rgx.Replace(str, replacement);
return (SqlString)result;
}
catch (Exception s)
{
return (SqlString)s.Message;
}
}
}
Deploy your CLR function
Now Test it
See following code:
create table dbo.test(dummydata varchar(255))
Go
INSERT INTO dbo.test values('P@ssw1rd'),('This 12is @test')
Go
Update dbo.test
set dummydata=dbo.Replace2(dummydata,'[0-9@]','')
select * from dbo.test
dummydata, Psswrd, This is test booom!!!!!!!!!!!!!
You could use vw (view-width) units, which would make the squares responsive according to the width of the screen.
A quick mock-up of this would be:
html,_x000D_
body {_x000D_
margin: 0;_x000D_
padding: 0;_x000D_
}_x000D_
div {_x000D_
height: 25vw;_x000D_
width: 25vw;_x000D_
background: tomato;_x000D_
display: inline-block;_x000D_
text-align: center;_x000D_
line-height: 25vw;_x000D_
font-size: 20vw;_x000D_
margin-right: -4px;_x000D_
position: relative;_x000D_
}_x000D_
/*demo only*/_x000D_
_x000D_
div:before {_x000D_
content: "";_x000D_
position: absolute;_x000D_
top: 0;_x000D_
left: 0;_x000D_
height: inherit;_x000D_
width: inherit;_x000D_
background: rgba(200, 200, 200, 0.6);_x000D_
transition: all 0.4s;_x000D_
}_x000D_
div:hover:before {_x000D_
background: rgba(200, 200, 200, 0);_x000D_
}
_x000D_
<div>1</div>_x000D_
<div>2</div>_x000D_
<div>3</div>_x000D_
<div>4</div>_x000D_
<div>5</div>_x000D_
<div>6</div>_x000D_
<div>7</div>_x000D_
<div>8</div>
_x000D_
it defines the protocols address family.this determines the type of socket created. pocket pc support AF_INET.
the content in the following page is quite decent http://etutorials.org/Programming/Pocket+pc+network+programming/Chapter+1.+Winsock/Streaming+TCP+Sockets/
another way is to use certutil.exe save your username and password in a file e.g. in.txt as username:password
certutil -encode in.txt out.txt
Now you should be able to use auth value from out.txt
$headers = @{ Authorization = "Basic $((get-content out.txt)[1])" }
Invoke-WebRequest -Uri 'https://whatever' -Headers $Headers
props.children
represents the content between the opening and the closing tags when invoking/rendering a component:
const Foo = props => (
<div>
<p>I'm {Foo.name}</p>
<p>abc is: {props.abc}</p>
<p>I have {props.children.length} children.</p>
<p>They are: {props.children}.</p>
<p>{Array.isArray(props.children) ? 'My kids are an array.' : ''}</p>
</div>
);
const Baz = () => <span>{Baz.name} and</span>;
const Bar = () => <span> {Bar.name}</span>;
invoke/call/render Foo
:
<Foo abc={123}>
<Baz />
<Bar />
</Foo>
For the Background, make sure you have imported java.awt.Color
into your package.
In your main
method, i.e. public static void main(String[] args)
, call the already imported method:
JLabel name_of_your_label=new JLabel("the title of your label");
name_of_your_label.setBackground(Color.the_color_you_wish);
name_of_your_label.setOpaque(true);
NB: Setting opaque will affect its visibility. Remember the case sensitivity in Java.
I just encountered the issue and couldn't figure out what was going wrong even after reading all the above and everything out there. What I did was
Each logging implementation has it's own way of setting it via properties or via code(lot of help available on this)
Irrespective of all the above I would not get the logs in my console or my log file. What I had overlooked was the below...
All I was doing with the above jugglery was controlling only the production of the logs(at root/package/class etc), left of the red line in above image. But I was not changing the way displaying/consumption of the logs of the same, right of the red line in above image. Handler(Consumption) is usually defaulted at INFO, therefore your precious debug statements wouldn't come through. Consumption/displaying is controlled by setting the log levels for the Handlers(ConsoleHandler/FileHandler etc..) So I went ahead and set the log levels of all my handlers to finest and everything worked.
This point was not made clear in a precise manner in any place.
I hope someone scratching their head, thinking why the properties are not working will find this bit helpful.
Getting this error, I changed the
c/C++ > Code Generation > Runtime Library to Multi-threaded library (DLL) /MD
for both code project and associated Google Test project. This solved the issue.
Note: all components of the project must have the same definition in c/C++ > Code Generation > Runtime Library. Either DLL or not DLL, but identical.
Simply :
<label>@Html.RadioButton("ABC", True)Yes</label>
<label>@Html.RadioButton("ABC", False)No</label>
But you should always use strongly typed model as suggested by cacho.
Steps to debug:-
In case you face any issue in kubernetes, first step is to check if kubernetes self applications are running fine or not.
Command to check:- kubectl get pods -n kube-system
If you see any pod is crashing, check it's logs
if getting NotReady
state error, verify network pod logs.
if not able to resolve with above, follow below steps:-
kubectl get nodes
# Check which node is not in ready state
kubectl describe node nodename
#nodename which is not in readystate
ssh to that node
execute systemctl status kubelet
# Make sure kubelet is running
systemctl status docker
# Make sure docker service is running
journalctl -u kubelet
# To Check logs in depth
Most probably you will get to know about error here, After fixing it reset kubelet with below commands:-
systemctl daemon-reload
systemctl restart kubelet
In case you still didn't get the root cause, check below things:-
Make sure your node has enough space and memory. Check for /var
directory space especially.
command to check: -df
-kh
, free -m
Verify cpu utilization with top command. and make sure any process is not taking an unexpected memory.
In addition to previous post you can have
<h:form rendered="#{!bean.boolvalue}" />
<h:form rendered="#{bean.textvalue == 'value'}" />
Jsf 2.0
Use OrderedDicts: http://docs.python.org/2/library/collections.html#collections.OrderedDict
>>> x = OrderedDict((("a", "1"), ("c", '3'), ("b", "2")))
>>> x["d"] = 4
>>> x.keys().index("d")
3
>>> x.keys().index("c")
1
For those using Python 3
>>> list(x.keys()).index("c")
1
If the former actions haven't had effect, backup your server configurations, remove the server and reinclude it. It was my case.
Use multipart/mixed
with the first part as multipart/alternative
and subsequent parts for the attachments. In turn, use text/plain
and text/html
parts within the multipart/alternative
part.
A capable email client should then recognise the multipart/alternative
part and display the text part or html part as necessary. It should also show all of the subsequent parts as attachment parts.
The important thing to note here is that, in multipart MIME messages, it is perfectly valid to have parts within parts. In theory, that nesting can extend to any depth. Any reasonably capable email client should then be able to recursively process all of the message parts.
$ foo="/some/directory/file"
$ [ ${foo:0:1} == "/" ] && echo 1 || echo 0
1
$ foo="[email protected]:/some/directory/file"
$ [ ${foo:0:1} == "/" ] && echo 1 || echo 0
0
The icon file is added to your project as a content file.
Old thread. But nevertheless( pun :) ).
$less filename
less works efficiently if you don't want to edit and just look around which is the case for examining huge log files.
Search in less works like vi
Best part, it's available by default on most distros. So won't be problem for production environment as well.
It is so easy!
for example my apk file location is: d:\myapp.apk
run cmd
navigate to "platform-tools" folder(in the sdk folder)
start your emulator device(let's say its name is 5556:MyDevice)
type this code in the cmd:
adb -s emulator-5556 install d:\myapp.apk
Wait for a while and it's DONE!!
almost there, just change outerWidth: 100%;
to width: auto;
(outerWidth is not a CSS property)
alternatively, apply the following styles to bar:
width: auto;
display: block;
One-to-Many: One Person Has Many Skills, a Skill is not reused between Person(s)
Many-to-Many: One Person Has Many Skills, a Skill is reused between Person(s)
In a One-To-Many relationship, one object is the "parent" and one is the "child". The parent controls the existence of the child. In a Many-To-Many, the existence of either type is dependent on something outside the both of them (in the larger application context).
Your subject matter (domain) should dictate whether or not the relationship is One-To-Many or Many-To-Many -- however, I find that making the relationship unidirectional or bidirectional is an engineering decision that trades off memory, processing, performance, etc.
What can be confusing is that a Many-To-Many Bidirectional relationship does not need to be symmetric! That is, a bunch of People could point to a skill, but the skill need not relate back to just those people. Typically it would, but such symmetry is not a requirement. Take love, for example -- it is bi-directional ("I-Love", "Loves-Me"), but often asymmetric ("I love her, but she doesn't love me")!
All of these are well supported by Hibernate and JPA. Just remember that Hibernate or any other ORM doesn't give a hoot about maintaining symmetry when managing bi-directional many-to-many relationships...thats all up to the application.
I think you need to include the regex OR operator:
String[]tokens = pdfName.split("-|\\.");
What you have will match:
[DASH followed by DOT together] -.
not
[DASH or DOT any of them] -
or .
Trust me, I am not joking. Remove all the System.Runtime dependencies from your app.config and it will start working.
Not so hard:
#include <thread>
void Test::runMultiThread()
{
std::thread t1(&Test::calculate, this, 0, 10);
std::thread t2(&Test::calculate, this, 11, 20);
t1.join();
t2.join();
}
If the result of the computation is still needed, use a future instead:
#include <future>
void Test::runMultiThread()
{
auto f1 = std::async(&Test::calculate, this, 0, 10);
auto f2 = std::async(&Test::calculate, this, 11, 20);
auto res1 = f1.get();
auto res2 = f2.get();
}
Check this :
<?php
/**
* @return bool
*/
function is_session_started()
{
if ( php_sapi_name() !== 'cli' ) {
if ( version_compare(phpversion(), '5.4.0', '>=') ) {
return session_status() === PHP_SESSION_ACTIVE ? TRUE : FALSE;
} else {
return session_id() === '' ? FALSE : TRUE;
}
}
return FALSE;
}
// Example
if ( is_session_started() === FALSE ) session_start();
?>
Source http://php.net
This is only a warning: your code still works, but probably won't work in the future as the method is deprecated. See the relevant source of Chromium and corresponding patch.
This has already been recognised and fixed in jQuery 1.11 (see here and here).
Based on the answer by @peteb, but using Promises
and Async/Await
:
const AWS = require('aws-sdk');
const s3 = new AWS.S3();
async function getObject (bucket, objectKey) {
try {
const params = {
Bucket: bucket,
Key: objectKey
}
const data = await s3.getObject(params).promise();
return data.Body.toString('utf-8');
} catch (e) {
throw new Error(`Could not retrieve file from S3: ${e.message}`)
}
}
// To retrieve you need to use `await getObject()` or `getObject().then()`
getObject('my-bucket', 'path/to/the/object.txt').then(...);
Link to oficial API documentation is http://instagram.com/developer/authentication/
Longstory short - two steps:
Get CODE
Open https://api.instagram.com/oauth/authorize/?client_id=CLIENT-ID&redirect_uri=REDIRECT-URI&response_type=code with information from http://instagram.com/developer/clients/manage/
Get access token
curl \-F 'client_id=CLIENT-ID' \
-F 'client_secret=CLIENT-SECRET' \
-F 'grant_type=authorization_code' \
-F 'redirect_uri=YOUR-REDIRECT-URI' \
-F 'code=CODE' \
https://api.instagram.com/oauth/access_token
Since Python 3.5 you can unpack unlimited amount of list
s.
PEP 448 - Additional Unpacking Generalizations
So this will work:
a = ['1', '2', '3', '4']
b = ['5', '6']
function_that_needs_strings(*a, *b)
Any one can try this command to truncate any file in linux system
This will surely work in any format :
truncate -s 0 file.txt
Use btoa()
for encode and atob()
for decode
text_val:any="your encoding text";
Encoded Text: console.log(btoa(this.text_val)); //eW91ciBlbmNvZGluZyB0ZXh0
Decoded Text: console.log(atob("eW91ciBlbmNvZGluZyB0ZXh0")); //your encoding text
Have you configured the jupyter_notebook_config.py file to allow external connections?
By default, Jupyter Notebook only accepts connections from localhost (eg, from the same computer that its running on). By modifying the NotebookApp.allow_origin option from the default ' ' to '*', you allow Jupyter to be accessed externally.
c.NotebookApp.allow_origin = '*' #allow all origins
You'll also need to change the IPs that the notebook will listen on:
c.NotebookApp.ip = '0.0.0.0' # listen on all IPs
Also see the details in a subsequent answer in this thread.
From the error, I infer that referenceElement
is a dictionary (see repro below). A dictionary cannot be hashed and therefore cannot be used as a key to another dictionary (or itself for that matter!).
>>> d1, d2 = {}, {}
>>> d1[d2] = 1
Traceback (most recent call last):
File "<input>", line 1, in <module>
TypeError: unhashable type: 'dict'
You probably meant either for element in referenceElement.keys()
or for element in json['referenceElement'].keys()
. With more context on what types json
and referenceElement
are and what they contain, we will be able to better help you if neither solution works.