SyntaxFix.com - Programming Questions & Answers Hub For Beginners

In command line, you can use

spark-shell -i file.scala

to run code which is written in file.scala

sudo sh -c "echo /usr/lib/oracle/12.2/client64/lib > /etc/ld.so.conf.d/oracle-instantclient.conf";sudo ldconfig

from https://help.ubuntu.com/community/Oracle%20Instant%20Client

Of course AJAX is the solution,

To perform an AJAX request (for easiness we can use jQuery library).

Step1.

Include jQuery library in your web page

a. you can download jQuery library from jquery.com and keep it locally.

b. or simply paste the following code,

<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js"></script>

Step 2.

Call a javascript function on button click

<button type="button" onclick="foo()">Click Me</button>

Step 3.

and finally the function

 function foo () {
      $.ajax({
        url:"test.php", //the page containing php script
        type: "POST", //request type
        success:function(result){
         alert(result);
       }
     });
 }

it will make an AJAX request to test.php when ever you clicks the button and alert the response.

For example your code in test.php is,

<?php echo 'hello'; ?>

then it will alert "hello" when ever you clicks the button.

Swift 4, Swift 5

let viewController = UIApplication.shared.keyWindow?.rootViewController
if viewController is MyViewController {

}

The rule is, if the function that is in the then handler returns a value, the promise resolves/rejects with that value, and if the function returns a promise, what happens is, the next then clause will be the then clause of the promise the function returned, so, in this case, the first example falls through the normal sequence of the thens and prints out values as one might expect, in the second example, the promise object that gets returned when you do Promise.resolve("bbb")'s then is the then that gets invoked when chaining(for all intents and purposes). The way it actually works is described below in more detail.

Quoting from the Promises/A+ spec:

The promise resolution procedure is an abstract operation taking as input a promise and a value, which we denote as [[Resolve]](promise, x). If x is a thenable, it attempts to make promise adopt the state of x, under the assumption that x behaves at least somewhat like a promise. Otherwise, it fulfills promise with the value x.

This treatment of thenables allows promise implementations to interoperate, as long as they expose a Promises/A+-compliant then method. It also allows Promises/A+ implementations to “assimilate” nonconformant implementations with reasonable then methods.

The key thing to notice here is this line:

if x is a promise, adopt its state [3.4]

link: https://promisesaplus.com/#point-49

If you are using navigationController then add the UINavigationControllerDelegate protocol to class and add the delegate method as follows:

class ViewController:UINavigationControllerDelegate {

    func navigationController(navigationController: UINavigationController, willShowViewController viewController: UIViewController,
animated: Bool) {
        if viewController === self {
            // do here what you want
        }
    }
}

This method is called whenever the navigation controller will slide to a new screen. If the back button was pressed, the new view controller is ViewController itself.

What you can do is to hide the ReCaptcha Control behind a div. Then make your styling on this div. And set the css "pointer-events: none" on it, so you can click through the div (Click through a DIV to underlying elements).

The checkbox should be in a place where the user is clicking.

for a lapply-friendly version..

library(data.table)
library(xlsx)

path2txtlist <- your.list.of.txt.files
wb <- createWorkbook()
lapply(seq_along(path2txtlist), function (j) {
sheet <- createSheet(wb, paste("sheetname", j))
addDataFrame(fread(path2txtlist[j]), sheet=sheet, startColumn=1, row.names=FALSE)
})

saveWorkbook(wb, "My_File.xlsx")

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
     android:shape="rectangle">
     <solid android:color="#ffffff" />
     <stroke android:width="1dip" android:color="#ff9900" />
 </selector>

You have to remove > this from selector root tag, like below

   <selector xmlns:android="http://schemas.android.com/apk/res/android"
        android:shape="rectangle">

As well as move your code to shape from selector.

Here is an alternative tr based solution that doesn't use echo, expressed as a one-liner.

for v in $(tr ',' '\n' <<< "$var") ; do something_with "$v" ; done

It feels tidier without echo but that is just my personal preference.

Ubuntu

Try the following lines in Dockerfile:

RUN useradd -rm -d /home/ubuntu -s /bin/bash -g root -G sudo -u 1001 ubuntu
USER ubuntu
WORKDIR /home/ubuntu

useradd options (see: man useradd):

• -r, --system Create a system account. ^{see: Implications creating system accounts}
• -m, --create-home Create the user's home directory.
• -d, --home-dir HOME_DIR Home directory of the new account.
• -s, --shell SHELL Login shell of the new account.
• -g, --gid GROUP Name or ID of the primary group.
• -G, --groups GROUPS List of supplementary groups.
• -u, --uid UID Specify user ID. ^{see: Understanding how uid and gid work in Docker containers}
• -p, --password PASSWORD Encrypted password of the new account (e.g. ubuntu).

Setting default user's password

To set the user password, add -p "$(openssl passwd -1 ubuntu)" to useradd command.

Alternatively add the following lines to your Dockerfile:

SHELL ["/bin/bash", "-o", "pipefail", "-c"]
RUN echo 'ubuntu:ubuntu' | chpasswd

The first shell instruction is to make sure that -o pipefail option is enabled before RUN with a pipe in it. Read more: Hadolint: Linting your Dockerfile.

Try this:

public void LoadData()
        {
            SqlConnection con = new SqlConnection("Data Source=.;Initial Catalog=Stocks;Integrated Security=True;Pooling=False");
            SqlDataAdapter sda = new SqlDataAdapter("Select * From [Stocks].[dbo].[product]", con);
            DataTable dt = new DataTable();
            sda.Fill(dt);
            DataGridView1.Rows.Clear();

        foreach (DataRow item in dt.Rows)
        {
            int n = DataGridView1.Rows.Add();
            DataGridView1.Rows[n].Cells[0].Value = item["ProductCode"].ToString();
            DataGridView1.Rows[n].Cells[1].Value = item["Productname"].ToString();
            DataGridView1.Rows[n].Cells[2].Value = item["qty"].ToString();                
            if ((bool)item["productstatus"])
            {
                DataGridView1.Rows[n].Cells[3].Value = "Active";
            }
            else
            {
                DataGridView1.Rows[n].Cells[3].Value = "Deactive";
            }

For those who are getting the "Unable to resolve dependencies" error:
Toggle "Offline Mode" off
('View'->Tool Windows->Gradle)

.g-recaptcha{
    -moz-transform:scale(1.1);
    -ms-transform:scale(1.1); 
    -o-transform:scale(1.1); 
    -moz-transform-origin:0; 
    -ms-transform-origin:0;
    -o-transform-origin:0;
    -webkit-transform:scale(1.1);
    transform:scale(1.1);
    -webkit-transform-origin:0 0;
    transform-origin:0;
    filter: progid:DXImageTransform.Microsoft.Matrix(M11=1.1,M12=0,M21=0,M22=1.1,SizingMethod='auto expand');
}

using bootstrap you can add <div class="col-sm-1 col-xs-1 col-md-1 col-lg-1"></div> between buttons.

Step 1: Ensure spawn is called the right way

First, review the docs for child_process.spawn( command, args, options ):

Launches a new process with the given command, with command line arguments in args. If omitted, args defaults to an empty Array.

The third argument is used to specify additional options, which defaults to:

{ cwd: undefined, env: process.env }

Use env to specify environment variables that will be visible to the new process, the default is process.env.

Ensure you are not putting any command line arguments in command and the whole spawn call is valid. Proceed to next step.

Step 2: Identify the Event Emitter that emits the error event

Search on your source code for each call to spawn, or child_process.spawn, i.e.

spawn('some-command', [ '--help' ]);

and attach there an event listener for the 'error' event, so you get noticed the exact Event Emitter that is throwing it as 'Unhandled'. After debugging, that handler can be removed.

spawn('some-command', [ '--help' ])
  .on('error', function( err ){ throw err })
;

Execute and you should get the file path and line number where your 'error' listener was registered. Something like:

/file/that/registers/the/error/listener.js:29
      throw err;
            ^
Error: spawn ENOENT
    at errnoException (child_process.js:1000:11)
    at Process.ChildProcess._handle.onexit (child_process.js:791:34)

If the first two lines are still

events.js:72
        throw er; // Unhandled 'error' event

do this step again until they are not. You must identify the listener that emits the error before going on next step.

Step 3: Ensure the environment variable $PATH is set

There are two possible scenarios:

1. You rely on the default spawn behaviour, so child process environment will be the same as process.env.
2. You are explicity passing an env object to spawn on the options argument.

In both scenarios, you must inspect the PATH key on the environment object that the spawned child process will use.

Example for scenario 1

// inspect the PATH key on process.env
console.log( process.env.PATH );
spawn('some-command', ['--help']);

Example for scenario 2

var env = getEnvKeyValuePairsSomeHow();
// inspect the PATH key on the env object
console.log( env.PATH );
spawn('some-command', ['--help'], { env: env });

The absence of PATH (i.e., it's undefined) will cause spawn to emit the ENOENT error, as it will not be possible to locate any command unless it's an absolute path to the executable file.

When PATH is correctly set, proceed to next step. It should be a directory, or a list of directories. Last case is the usual.

Step 4: Ensure command exists on a directory of those defined in PATH

Spawn may emit the ENOENT error if the filename command (i.e, 'some-command') does not exist in at least one of the directories defined on PATH.

Locate the exact place of command. On most linux distributions, this can be done from a terminal with the which command. It will tell you the absolute path to the executable file (like above), or tell if it's not found.

Example usage of which and its output when a command is found

> which some-command
some-command is /usr/bin/some-command

Example usage of which and its output when a command is not found

> which some-command
bash: type: some-command: not found

miss-installed programs are the most common cause for a not found command. Refer to each command documentation if needed and install it.

When command is a simple script file ensure it's accessible from a directory on the PATH. If it's not, either move it to one or make a link to it.

Once you determine PATH is correctly set and command is accessible from it, you should be able to spawn your child process without spawn ENOENT being thrown.

The good part is we can make basic maths directly:

let nuts = 7_x000D_
_x000D_
more.innerHTML = `_x000D_
_x000D_
<h2>You collected ${nuts} nuts so far!_x000D_
_x000D_
<hr>_x000D_
_x000D_
Double it, get ${nuts + nuts} nuts!!_x000D_
_x000D_
`

<div id="more"></div>

It became really useful in a factory function:

function nuts(it){_x000D_
  return `_x000D_
    You have ${it} nuts! <br>_x000D_
    Cosinus of your nuts: ${Math.cos(it)} <br>_x000D_
    Triple nuts: ${3 * it} <br>_x000D_
    Your nuts encoded in BASE64:<br> ${btoa(it)}_x000D_
  `_x000D_
}_x000D_
_x000D_
nut.oninput = (function(){_x000D_
  out.innerHTML = nuts(nut.value)_x000D_
})

<h3>NUTS CALCULATOR_x000D_
<input type="number" id="nut">_x000D_
_x000D_
<div id="out"></div>

A multiset is a structure maintaining the number of occurrences for each element. Using Guava implementation:

Set<Integer> duplicated =
        ImmutableMultiset.copyOf(numbers).entrySet().stream()
                .filter(entry -> entry.getCount() > 1)
                .map(Multiset.Entry::getElement)
                .collect(Collectors.toSet());

In general it is safer to work on copies than on original data frames, except when you know that you won't be needing the original anymore and want to proceed with the manipulated version. Normally, you would still have some use for the original data frame to compare with the manipulated version, etc. Therefore, most people work on copies and merge at the end.

jsfiddle: http://jsfiddle.net/mgtoz4d3/

I added a container which contains both buttons. Try this:

CSS:

#button1{
    width: 300px;
    height: 40px;
}
#button2{
    width: 300px;
    height: 40px;
}
#container{
    text-align: center;
}

HTML:

<img src="kingstonunilogo.jpg" alt="uni logo" style="width:180px;height:160px">
<br><br>
<div id="container">
    <button type="button home-button" id="button1" >Home</button>
    <button type="button contact-button" id="button2">Contact Us</button>
</div>

I have tried all suggestions and found my own simple solution.

The problem is that codes written in external environment like C need compiler. Look for its own VS environment, i.e. VS 2008.

Currently my machine runs VS 2012 and faces Unable to find vcvarsall.bat. I studied codes that i want to install to find the VS version. It was VS 2008. i have add to system variable VS90COMNTOOLS as variable name and gave the value of VS120COMNTOOLS.

You can find my step by step solution below:

1. Right click on My Computer.
2. Click Properties
3. Advanced system settings
4. Environment variables
5. Add New system variable
6. Enter VS90COMNTOOLS to the variable name
7. Enter the value of current version to the new variable.
8. Close all windows

Now open a new session and pip install your-package

EC2 (on the Amazon Linux AMI) currently supports python3.4 and python3.5.

sudo yum install python35
sudo yum install python35-pip

code

var mydate = "2017-06-28T00:00:00";
var weekDayName =  moment(mydate).format('dddd');
console.log(weekDayName);

mydate is the input date. The variable weekDayName get the name of the day. Here the output is

Output

Wednesday

var mydate = "2017-08-30T00:00:00";_x000D_
console.log(moment(mydate).format('dddd'));_x000D_
console.log(moment(mydate).format('ddd'));_x000D_
console.log('Day in number[0,1,2,3,4,5,6]: '+moment(mydate).format('d'));_x000D_
console.log(moment(mydate).format('MMM'));_x000D_
console.log(moment(mydate).format('MMMM'));

<script src="https://momentjs.com/downloads/moment.js"></script>

From the bottom of the ?mutate_each (at least in dplyr 0.5) it looks like that function, as in @docendo discimus's answer, will be deprecated and replaced with more flexible alternatives mutate_if, mutate_all, and mutate_at. The one most similar to what @hadley mentions in his comment is probably using mutate_at. Note the order of the arguments is reversed, compared to mutate_each, and vars() uses select() like semantics, which I interpret to mean the ?select_helpers functions.

dat %>% mutate_at(vars(starts_with("fac")),funs(factor)) %>%   
  mutate_at(vars(starts_with("dbl")),funs(as.numeric))

But mutate_at can take column numbers instead of a vars() argument, and after reading through this page, and looking at the alternatives, I ended up using mutate_at but with grep to capture many different kinds of column names at once (unless you always have such obvious column names!)

dat %>% mutate_at(grep("^(fac|fctr|fckr)",colnames(.)),funs(factor)) %>%
  mutate_at(grep("^(dbl|num|qty)",colnames(.)),funs(as.numeric))

I was pretty excited about figuring out mutate_at + grep, because now one line can work on lots of columns.

EDIT - now I see matches() in among the select_helpers, which handles regex, so now I like this.

dat %>% mutate_at(vars(matches("fac|fctr|fckr")),funs(factor)) %>%
  mutate_at(vars(matches("dbl|num|qty")),funs(as.numeric))

Another generally-related comment - if you have all your date columns with matchable names, and consistent formats, this is powerful. In my case, this turns all my YYYYMMDD columns, which were read as numbers, into dates.

  mutate_at(vars(matches("_DT$")),funs(as.Date(as.character(.),format="%Y%m%d")))

With Python 3, you could do:

import socket
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
server = "www.google.com"
port = 80
server_ip = socket.gethostbyname(server)
print(str(server_ip))

You have to change the mamp Mysql Database port into 8889.

If your goal is to deploy your Spring Boot application to AWS, Boxfuse gives you a very easy solution.

All you need to do is:

boxfuse run my-spring-boot-app-1.0.jar -env=prod

This will:

• Fuse a minimal OS image tailor-made for your app (about 100x smaller than a typical Linux distribution)
• Push it to a secure online repository
• Convert it into an AMI in about 30 seconds
• Create and configure a new Elastic IP or ELB
• Assign a new domain name to it
• Launch one or more instances based on your new AMI

All images are generated in seconds and are immutable. They can be run unchanged on VirtualBox (dev) and AWS (test & prod).

All updates are performed as zero-downtime blue/green deployments and you can also enable auto-scaling with just one command.

Boxfuse also understands your Spring Boot config will automatically configure security groups and ELB health checks based upon your application.properties.

Here is a tutorial to help you get started: https://boxfuse.com/getstarted/springboot

Disclaimer: I am the founder and CEO of Boxfuse

Okay I have got it working, hope this information is useful.

1. First of all I now realize that not only do self-extracting zip start extracting with doubleclick, but they require no extraction application to be installed on the users computer because the extractor code is in the archive itself. This means that you will get a different user experience depending on what you application you use to create the sfx

2. I went with WinRar as follows, this does not require you to create an sfx file, everything can be created via the gui:

   • Select files, right click and select Add to Archive
   • Use Browse.. to create the archive in the folder above
   • Change Archive Format to Zip
   • Enable Create SFX archive
   • Select Advanced tab
   • Select SFX Options
   • Select Setup tab
   • Enter setup.exe into the Run after Extraction field
   • Select Modes tab
   • Enable Unpack to temporary folder
   • Select text and Icon tab
   • Enter a more appropriate title for your task
   • Select OK
   • Select OK

The resultant exe unzips to a temporary folder and then starts the installer

for Swift 3.0 add image on leftside of textField

textField.leftView = UIImageView(image: "small-calendar")
textField.leftView?.frame = CGRect(x: 0, y: 5, width: 20 , height:20)
textField.leftViewMode = .always

Source Link

You can simply check on client side using grecaptcha.getResponse() method

          var rcres = grecaptcha.getResponse();
          if(rcres.length){
            grecaptcha.reset();
            showHideMsg("Form Submitted!","success");
          }else{
            showHideMsg("Please verify reCAPTCHA","error");
          }

If you want to use @Html.DropDownList , follow.

Controller:

var categoryList = context.Categories.Select(c => c.CategoryName).ToList();

ViewBag.CategoryList = categoryList;

View:

@Html.DropDownList("Category", new SelectList(ViewBag.CategoryList), "Choose Category", new { @class = "form-control" })

$("#Category").on("change", function () {
 var q = $("#Category").val();

console.log("val = " + q);
});

Found another solution for the same. It will be more helpful.

START C:\"Program Files (x86)"\Test\"Test Automation"\finger.exe ConfigFile="C:\Users\PCName\Desktop\Automation\Documents\Validation_ZoneWise_Default.finger.Config"

finger.exe is a parent program that is calling config solution. Note: if your path folder name consists of spaces, then do not forget to add "".

This is not a bug- you can only transition on ordinal/calculable properties (an easy way of thinking of this is any property with a numeric start and end number value..though there are a few exceptions).

This is because transitions work by calculating keyframes between two values, and producing an animation by extrapolating intermediate amounts.

visibility in this case is a binary setting (visible/hidden), so once the transition duration elapses, the property simply switches state, you see this as a delay- but it can actually be seen as the final keyframe of the transition animation, with the intermediary keyframes not having been calculated (what constitutes the values between hidden/visible? Opacity? Dimension? As it is not explicit, they are not calculated).

opacity is a value setting (0-1), so keyframes can be calculated across the duration provided.

A list of transitionable (animatable) properties can be found here

Another option would be to add engine='python' to the command pandas.read_csv(filename, sep='\t', engine='python')

I faced the same issue while trying to build sample project gplus-quickstart-csharp-master.

I looked closely error message and found a workaround from overcoming this error, hopefully, this will help.

• Right click on solution file and open in windows explorer.
• Copy .nuget folder with NuGet.Config, NuGet.exe, NuGet.targets (download link or simply copy from other project and replaced)
• Try to rebuild solution.

Enjoy !!

<meta http-equiv="refresh" content="5; url=http://example.com/">

This is the error line:

if (called_from.equalsIgnoreCase("add")) {  --->38th error line

This means that called_from is null. Simple check if it is null above:

String called_from = getIntent().getStringExtra("called");

if(called_from == null) {
    called_from = "empty string";
}
if (called_from.equalsIgnoreCase("add")) {
    // do whatever
} else {
    // do whatever
}

That way, if called_from is null, it'll execute the else part of your if statement.

Try use this:

    apt-get install r-base-dev

It will be help. After then I could makeinstall.packages('//package_name')

I just spent the morning dealing with this. The problem wasn't that I had a certificate missing. It was that I had an extra.

I started out with my ssl.conf containing my server key and three files provided by my SSL certificate authority:

#   Server Certificate:
SSLCertificateFile /etc/pki/tls/certs/myserver.cer

#   Server Private Key:
SSLCertificateKeyFile /etc/pki/tls/private/myserver.key

#   Server Certificate Chain:
SSLCertificateChainFile /etc/pki/tls/certs/AddTrustExternalCARoot.pem

#   Certificate Authority (CA):
SSLCACertificateFile /etc/pki/tls/certs/InCommonServerCA.pem

It worked fine on desktops, but Chrome on Android gave me err_cert_authority_invalid

A lot of headaches, searching and poor documentation later, I figured out that it was the Server Certificate Chain:

SSLCertificateChainFile /etc/pki/tls/certs/AddTrustExternalCARoot.pem

That was creating a second certificate chain which was incomplete. I commented out that line, leaving me with

#   Server Certificate:
SSLCertificateFile /etc/pki/tls/certs/myserver.cer

#   Server Private Key:
SSLCertificateKeyFile /etc/pki/tls/private/myserver.key

#   Certificate Authority (CA):
SSLCACertificateFile /etc/pki/tls/certs/InCommonServerCA.pem

and now it's working on Android again. This was on Linux running Apache 2.2.

It's probably worth mentioning that for http/https some people proxy their browser traffic through Burp/ZAP or another intercepting "attack proxy". A thread that covers options for this on Android devices can be found here: https://android.stackexchange.com/questions/32366/which-browser-does-support-proxies

I had a similar problem with R-studio. When I tried to do my plots, this message was showing up.

Eventually I realised that the reason behind this was that my "window" for the plots was too small, and I had to make it bigger to "fit" all the plots inside!

Hope to help

The only way I managed to install NumPy was as follows:

I downloaded NumPy from here https://pypi.python.org/pypi/numpy

This Module

https://pypi.python.org/packages/d7/3c/d8b473b517062cc700575889d79e7444c9b54c6072a22189d1831d2fbbce/numpy-1.11.2-cp35-none-win32.whl#md5=e485e06907826af5e1fc88608d0629a2

Command execution from Python's installation path in PowerShell

PS C:\Program Files (x86)\Python35-32> .\python -m pip install C:/Users/MyUsername/Documents/Programs/Python/numpy-1.11.2-cp35-none-win32.whl
Processing c:\users\MyUsername\documents\programs\numpy-1.11.2-cp35-none-win32.whl
Installing collected packages: numpy
Successfully installed numpy-1.11.2
PS C:\Program Files (x86)\Python35-32>

PS.: I installed it on Windows 10.

If you want to extract substrings from a String, not just the position, (but the actual String including emojis). Then, the following maybe a simpler solution.

extension String {
  func regex (pattern: String) -> [String] {
    do {
      let regex = try NSRegularExpression(pattern: pattern, options: NSRegularExpressionOptions(rawValue: 0))
      let nsstr = self as NSString
      let all = NSRange(location: 0, length: nsstr.length)
      var matches : [String] = [String]()
      regex.enumerateMatchesInString(self, options: NSMatchingOptions(rawValue: 0), range: all) {
        (result : NSTextCheckingResult?, _, _) in
        if let r = result {
          let result = nsstr.substringWithRange(r.range) as String
          matches.append(result)
        }
      }
      return matches
    } catch {
      return [String]()
    }
  }
} 

Example Usage:

"someText ?? pig".regex("??")

Will return the following:

["??"]

Note using "\w+" may produce an unexpected ""

"someText ?? pig".regex("\\w+")

Will return this String array

["someText", "?", "pig"]

Swift 4 Code

Step 1 In ViewdidLoad()

   let pictureTap = UITapGestureRecognizer(target: self, action: #selector(MyInfoTableViewController.imageTapped))
       userImageView.addGestureRecognizer(pictureTap)
       userImageView.isUserInteractionEnabled = true

Step 2 Add Following Function

@objc func imageTapped() {

        let imageView = userImageView
        let newImageView = UIImageView(image: imageView?.image)
        newImageView.frame = UIScreen.main.bounds
        newImageView.backgroundColor = UIColor.black
        newImageView.contentMode = .scaleAspectFit
        newImageView.isUserInteractionEnabled = true
        let tap = UITapGestureRecognizer(target: self, action: #selector(dismissFullscreenImage))
        newImageView.addGestureRecognizer(tap)
        self.view.addSubview(newImageView)

        self.navigationController?.isNavigationBarHidden = true
        self.tabBarController?.tabBar.isHidden = true

    }

It's Tested And Working Properly

It's OK to run Docker-in-Docker (DinD) and in fact Docker (the company) has an official DinD image for this.

The caveat however is that it requires a privileged container, which depending on your security needs may not be a viable alternative.

The alternative solution of running Docker using sibling containers (aka Docker-out-of-Docker or DooD) does not require a privileged container, but has a few drawbacks that stem from the fact that you are launching the container from within a context that is different from that one in which it's running (i.e., you launch the container from within a container, yet it's running at the host's level, not inside the container).

I wrote a blog describing the pros/cons of DinD vs DooD here.

Having said this, Nestybox (a startup I just founded) is working on a solution that runs true Docker-in-Docker securely (without using privileged containers). You can check it out at www.nestybox.com.

It's possible if you define such a functional interface with multiple type parameters. There is no such built in type. (There are a few limited types with multiple parameters.)

@FunctionalInterface
interface Function6<One, Two, Three, Four, Five, Six> {
    public Six apply(One one, Two two, Three three, Four four, Five five);
}

public static void main(String[] args) throws Exception {
    Function6<String, Integer, Double, Void, List<Float>, Character> func = (a, b, c, d, e) -> 'z';
}

I've called it Function6 here. The name is at your discretion, just try not to clash with existing names in the Java libraries.

There's also no way to define a variable number of type parameters, if that's what you were asking about.

Some languages, like Scala, define a number of built in such types, with 1, 2, 3, 4, 5, 6, etc. type parameters.

If you altered your $PATH variable that could also cause the problem. If you think that might be the issue, check your ~/.bash_profile or ~/.bashrc

If you already have onChange handler for the individual FieldEditors I don't see why you couldn't just move the state up to the FormEditor component and just pass down a callback from there to the FieldEditors that will update the parent state. That seems like a more React-y way to do it, to me.

Something along the line of this perhaps:

const FieldEditor = ({ value, onChange, id }) => {
  const handleChange = event => {
    const text = event.target.value;
    onChange(id, text);
  };

  return (
    <div className="field-editor">
      <input onChange={handleChange} value={value} />
    </div>
  );
};

const FormEditor = props => {
  const [values, setValues] = useState({});
  const handleFieldChange = (fieldId, value) => {
    setValues({ ...values, [fieldId]: value });
  };

  const fields = props.fields.map(field => (
    <FieldEditor
      key={field}
      id={field}
      onChange={handleFieldChange}
      value={values[field]}
    />
  ));

  return (
    <div>
      {fields}
      <pre>{JSON.stringify(values, null, 2)}</pre>
    </div>
  );
};

// To add abillity to dynamically add/remove fields keep the list in state
const App = () => {
  const fields = ["field1", "field2", "anotherField"];

  return <FormEditor fields={fields} />;
};

Original - pre-hooks version:

class FieldEditor extends React.Component {_x000D_
  constructor(props) {_x000D_
    super(props);_x000D_
    this.handleChange = this.handleChange.bind(this);_x000D_
  }_x000D_
_x000D_
  handleChange(event) {_x000D_
    const text = event.target.value;_x000D_
    this.props.onChange(this.props.id, text);_x000D_
  }_x000D_
_x000D_
  render() {_x000D_
    return (_x000D_
      <div className="field-editor">_x000D_
        <input onChange={this.handleChange} value={this.props.value} />_x000D_
      </div>_x000D_
    );_x000D_
  }_x000D_
}_x000D_
_x000D_
class FormEditor extends React.Component {_x000D_
  constructor(props) {_x000D_
    super(props);_x000D_
    this.state = {};_x000D_
_x000D_
    this.handleFieldChange = this.handleFieldChange.bind(this);_x000D_
  }_x000D_
_x000D_
  handleFieldChange(fieldId, value) {_x000D_
    this.setState({ [fieldId]: value });_x000D_
  }_x000D_
_x000D_
  render() {_x000D_
    const fields = this.props.fields.map(field => (_x000D_
      <FieldEditor_x000D_
        key={field}_x000D_
        id={field}_x000D_
        onChange={this.handleFieldChange}_x000D_
        value={this.state[field]}_x000D_
      />_x000D_
    ));_x000D_
_x000D_
    return (_x000D_
      <div>_x000D_
        {fields}_x000D_
        <div>{JSON.stringify(this.state)}</div>_x000D_
      </div>_x000D_
    );_x000D_
  }_x000D_
}_x000D_
_x000D_
// Convert to class component and add ability to dynamically add/remove fields by having it in state_x000D_
const App = () => {_x000D_
  const fields = ["field1", "field2", "anotherField"];_x000D_
_x000D_
  return <FormEditor fields={fields} />;_x000D_
};_x000D_
_x000D_
ReactDOM.render(<App />, document.body);

Just a follow-up to ColCh's answer. It is quite easy to abstract the wrapping of a component:

var React = require('react');

var wrapComponent = function(Component, props) {
  return React.createClass({
    render: function() {
      return React.createElement(Component, props);
    }
  });
};

<Route path="comments" handler={wrapComponent(Comments, {myprop: value})}/>

I haven't tested this solution yet so any feedback is important.

It's important to note that with this method, any props sent via the Router (such as params) get overwritten / removed.

You can find examples for writing OAuth clients here:

• https://github.com/spring-projects/spring-security-oauth

In your case you can't just use default or base classes for everything, you have a multiple classes Implementing OAuth2ProtectedResourceDetails. The configuration depends of how you configured your OAuth service but assuming from your curl connections I would recommend:

@EnableOAuth2Client
@Configuration
class MyConfig{

    @Value("${oauth.resource:http://localhost:8082}")
    private String baseUrl;
    @Value("${oauth.authorize:http://localhost:8082/oauth/authorize}")
    private String authorizeUrl;
    @Value("${oauth.token:http://localhost:8082/oauth/token}")
    private String tokenUrl;

    @Bean
    protected OAuth2ProtectedResourceDetails resource() {
        ResourceOwnerPasswordResourceDetails resource;
        resource = new ResourceOwnerPasswordResourceDetails();

        List scopes = new ArrayList<String>(2);
        scopes.add("write");
        scopes.add("read");
        resource.setAccessTokenUri(tokenUrl);
        resource.setClientId("restapp");
        resource.setClientSecret("restapp");
        resource.setGrantType("password");
        resource.setScope(scopes);
        resource.setUsername("**USERNAME**");
        resource.setPassword("**PASSWORD**");
        return resource;
    }

    @Bean
    public OAuth2RestOperations restTemplate() {
        AccessTokenRequest atr = new DefaultAccessTokenRequest();
        return new OAuth2RestTemplate(resource(), new DefaultOAuth2ClientContext(atr));
    }
}

@Service
@SuppressWarnings("unchecked")
class MyService {

    @Autowired
    private OAuth2RestOperations restTemplate;

    public MyService() {
        restTemplate.getAccessToken();
    }
}

Do not forget about @EnableOAuth2Client on your config class, also I would suggest to try that the urls you are using are working with curl first, also try to trace it with the debugger because lot of exceptions are just consumed and never printed out due security reasons, so it gets little hard to find where the issue is. You should use logger with debug enabled set. Good luck

I uploaded sample springboot app on github https://github.com/mariubog/oauth-client-sample to depict your situation because I could not find any samples for your scenario .

I did this in Windows 10,

1. Search for Environment Variables in the Windows search
2. "Edit the System environment variables" option will be popped in the result
3. Open that, select the "Path" and click on edit, then click "New" add your nodeJS Bin path i.e in my machine its installed in c:\programfiles\nodejs\node_modules\npm\bin
4. Once you added click "Ok" then close

Now you can write your command in prompt or powershell.

If you using WIndows 10, go for powershell its a rich UI

Marked with @IBInspectable in swift (or IBInspectable in Objective-C), they are easily editable in Interface Builder’s attributes inspector panel.
You can directly set borderWidth,cornerRadius,borderColor in attributes inspector

extension UIView {

  @IBInspectable var cornerRadius: CGFloat {

   get{
        return layer.cornerRadius
    }
    set {
        layer.cornerRadius = newValue
        layer.masksToBounds = newValue > 0
    }
  }

  @IBInspectable var borderWidth: CGFloat {
    get {
        return layer.borderWidth
    }
    set {
        layer.borderWidth = newValue
    }
  }

  @IBInspectable var borderColor: UIColor? {
    get {
        return UIColor(cgColor: layer.borderColor!)
    }
    set {
        layer.borderColor = borderColor?.cgColor
    }
  }
}

I will be adding some more information here. The latest Android developments have made it pretty easy to handle a lot of cases in status bar. Following are my observations from the styles.xml

1. Background color: for SDK 21+, as a lot of answers mentioned,<item name="android:windowTranslucentStatus">true</item> will make the status bar transparent and show in front of UI. Your Activity will take the whole space of the top.

2. Background color: again,for SDK 21+, <item name="android:statusBarColor">@color/your_color</item> will simply give a color to your status bar, without affecting anything else.

3. However, in later devices (Android M/+), the icons started coming in different shades. The OS can give a darker shade of gray to the icons for SDK 23/+ , if you override your styles.xml file in values-23 folder and add <item name="android:windowLightStatusBar">true</item>.
   This way, you will be providing your user with a more visible status bar, if your status bar has a light color( think of how a lot of google apps have light background yet the icons are visible there in a greyish color).
   I would suggest you to use this, if you are giving color to your status bar via point #2

4. In the most recent devices, SDK 29/+ comes with a system wide light and dark theme, controllable by the user. As devs, we are also supposed to override our style file in a new values-night folder, to give user 2 different experiences.
   Here again, I have found the point #2 to be effective in providing the "background color to status bar". But system was not changing the color of status bar icons for my app. since my day version of style consisted of lighter theme, this means that users will suffer from low visibility ( white icons on lighter background)
   This problem can be solved by using the point #3 approach or by overriding style file in values-29 folder and using a newer api <item name="android:enforceStatusBarContrast">true</item> . This will automatically enforce the grayish tint to icons, if your background color is too light.

Your example Alamofire.request(.POST, "http://mywebsite.com/post-request", parameters: ["foo": "bar"]) already contains "foo=bar" string as its body. But if you really want string with custom format. You can do this:

Alamofire.request(.POST, "http://mywebsite.com/post-request", parameters: [:], encoding: .Custom({
            (convertible, params) in
            var mutableRequest = convertible.URLRequest.copy() as NSMutableURLRequest
            mutableRequest.HTTPBody = "myBodyString".dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: false)
            return (mutableRequest, nil)
        }))

Note: parameters should not be nil

UPDATE (Alamofire 4.0, Swift 3.0):

In Alamofire 4.0 API has changed. So for custom encoding we need value/object which conforms to ParameterEncoding protocol.

extension String: ParameterEncoding {

    public func encode(_ urlRequest: URLRequestConvertible, with parameters: Parameters?) throws -> URLRequest {
        var request = try urlRequest.asURLRequest()
        request.httpBody = data(using: .utf8, allowLossyConversion: false)
        return request
    }

}

Alamofire.request("http://mywebsite.com/post-request", method: .post, parameters: [:], encoding: "myBody", headers: [:])

It's an option that you pass to the read() command:

context = new org.apache.spark.sql.SQLContext(sc)

var data = context.read.option("header","true").csv("<path>")

There are no private, public or protected keywords in current ECMAScript 6 specification.

So Traceur does not support private and public. 6to5 (currently it's called "Babel") realizes this proposal for experimental purpose (see also this discussion). But it's just proposal, after all.

So for now you can just simulate private properties through WeakMap (see here). Another alternative is Symbol - but it doesn't provide actual privacy as the property can be easily accessed through Object.getOwnPropertySymbols.

IMHO the best solution at this time - just use pseudo privacy. If you frequently use apply or call with your method, then this method is very object specific. So it's worth to declare it in your class just with underscore prefix:

class Animal {

    _sayHi() {
        // do stuff
    }
}

As an alternative to hide() mentioned in other answers, you can use css() to set the display value explicitly:

$("#msform").css("display","none")

First add your item to mItems and then use:

mAdapter.notifyItemInserted(mItems.size() - 1);

this method is better than using:

mAdapter.notifyDataSetChanged();

in performance.

I have found that the following works well in 2.7.x

import os
two_up = os.path.normpath(os.path.join(__file__,'../'))

Try this Instead

simple way to do 'groupby' and sorting in descending order

df.groupby(['companyName'])['overallRating'].sum().sort_values(ascending=False).head(20)

It can be done inside styles.xml using

<item name="android:navigationBarColor">@color/theme_color</item>

or

window.setNavigationBarColor(@ColorInt int color)

http://developer.android.com/reference/android/view/Window.html#setNavigationBarColor(int)

Note that the method was introduced in Android Lollipop and won't work on API version < 21.

The second method (works on KitKat) is to set windowTranslucentNavigation to true in the manifest and place a colored view beneath the navigation bar.

You can try:

echo "USERNAME:NEWPASSWORD" | chpasswd

.ui-grid, .ui-grid-viewport,.ui-grid-contents-wrapper, .ui-grid-canvas { height: auto !important; }

I have recently tried the following approach which seems to work fine, although I am not 100% sure if there might be any side effects:

'use strict';

import * as models from "../../models";

module.exports = {

  up: function (queryInterface, Sequelize) {

    return queryInterface.createTable(models.Role.tableName, models.Role.attributes)
    .then(() => queryInterface.createTable(models.Team.tableName, models.Team.attributes))
    .then(() => queryInterface.createTable(models.User.tableName, models.User.attributes))

  },

  down: function (queryInterface, Sequelize) {
    ...
  }

};

When running the migration above using sequelize db:migrate, my console says:

Starting 'db:migrate'...
Finished 'db:migrate' after 91 ms
== 20160113121833-create-tables: migrating =======
== 20160113121833-create-tables: migrated (0.518s)

All the tables are there, everything (at least seems to) work as expected. Even all the associations are there if they are defined correctly.

In python 2.7 adding Trusted root CA details at the end in file C:\Python27\lib\site-packages\certifi\cacert.pem helped

after that i did run (using admin rights) pip install --trusted-host pypi.python.org --trusted-host pypi.org --trusted-host files.pythonhosted.org packageName

You can use a vector. Instead of worry about different screen sizes you only need to create an .svg file and import it to your project using Vector Asset Studio.

Let look into a sample git repo to verify if your branch (master) is up to date with origin/master.

Verify that local master is tracking origin/master:

$ git branch -vv
* master a357df1eb [origin/master] This is a commit message

More info about local master branch:

$ git show --summary
commit a357df1eb941beb5cac3601153f063dae7faf5a8 (HEAD -> master, tag: 2.8.0, origin/master, origin/HEAD)
Author: ...
Date:   Tue Dec 11 14:25:52 2018 +0100

    Another commit message

Verify if origin/master is on the same commit:

$ cat .git/packed-refs | grep origin/master
a357df1eb941beb5cac3601153f063dae7faf5a8 refs/remotes/origin/master

We can see the same hash around, and safe to say the branch is in consistency with the remote one, at least in the current git repo.

var Test = React.createClass({
     add: function(event){
         if(event.key === 'Enter'){
            alert('Adding....');
         }
     },
     render: function(){
        return(
           <div>
            <input type="text" id="one" onKeyPress={(event) => this.add(event)}/>    
          </div>
        );
     }
});

Generally speaking, 5xx response codes indicate non-programmatic failures, such as a database connection failure, or some other system/library dependency failure. In many cases, it is expected that the client can re-submit the same request in the future and expect it to be successful.

Yes, some web-frameworks will respond with 5xx codes, but those are typically the result of defects in the code and the framework is too abstract to know what happened, so it defaults to this type of response; that example, however, doesn't mean that we should be in the habit of returning 5xx codes as the result of programmatic behavior that is unrelated to out of process systems. There are many, well defined response codes that are more suitable than the 5xx codes. Being unable to parse/validate a given input is not a 5xx response because the code can accommodate a more suitable response that won't leave the client thinking that they can resubmit the same request, when in fact, they can not.

To be clear, if the error encountered by the server was due to CLIENT input, then this is clearly a CLIENT error and should be handled with a 4xx response code. The expectation is that the client will correct the error in their request and resubmit.

It is completely acceptable, however, to catch any out of process errors and interpret them as a 5xx response, but be aware that you should also include further information in the response to indicate exactly what failed; and even better if you can include SLA times to address.

I don't think it's a good practice to interpret, "an unexpected error" as a 5xx error because bugs happen.

It is a common alert monitor to begin alerting on 5xx types of errors because these typically indicate failed systems, rather than failed code. So, code accordingly!

Since Marco's answer is deprecated, you must use the following syntax (according jasonlfunk's comment) :

$client = new \GuzzleHttp\Client();
$response = $client->request('POST', 'http://www.example.com/user/create', [
    'form_params' => [
        'email' => '[email protected]',
        'name' => 'Test user',
        'password' => 'testpassword',
    ]
]);

Request with POST files

$response = $client->request('POST', 'http://www.example.com/files/post', [
    'multipart' => [
        [
            'name'     => 'file_name',
            'contents' => fopen('/path/to/file', 'r')
        ],
        [
            'name'     => 'csv_header',
            'contents' => 'First Name, Last Name, Username',
            'filename' => 'csv_header.csv'
        ]
    ]
]);

REST verbs usage with params

// PUT
$client->put('http://www.example.com/user/4', [
    'body' => [
        'email' => '[email protected]',
        'name' => 'Test user',
        'password' => 'testpassword',
    ],
    'timeout' => 5
]);

// DELETE
$client->delete('http://www.example.com/user');

Async POST data

Usefull for long server operations.

$client = new \GuzzleHttp\Client();
$promise = $client->requestAsync('POST', 'http://www.example.com/user/create', [
    'form_params' => [
        'email' => '[email protected]',
        'name' => 'Test user',
        'password' => 'testpassword',
    ]
]);
$promise->then(
    function (ResponseInterface $res) {
        echo $res->getStatusCode() . "\n";
    },
    function (RequestException $e) {
        echo $e->getMessage() . "\n";
        echo $e->getRequest()->getMethod();
    }
);

Set headers

According to documentation, you can set headers :

// Set various headers on a request
$client->request('GET', '/get', [
    'headers' => [
        'User-Agent' => 'testing/1.0',
        'Accept'     => 'application/json',
        'X-Foo'      => ['Bar', 'Baz']
    ]
]);

More information for debugging

If you want more details information, you can use debug option like this :

$client = new \GuzzleHttp\Client();
$response = $client->request('POST', 'http://www.example.com/user/create', [
    'form_params' => [
        'email' => '[email protected]',
        'name' => 'Test user',
        'password' => 'testpassword',
    ],
    // If you want more informations during request
    'debug' => true
]);

Documentation is more explicits about new possibilities.

Here column name must be decimal.

select CAST(columnname AS decimal(38,0)) from table

Here is one liner for those who are using jupyter and sklearn(18.2+) You don't even need matplotlib for that. Only requirement is graphviz

pip install graphviz

than run (according to code in question X is a pandas DataFrame)

from graphviz import Source
from sklearn import tree
Source( tree.export_graphviz(dtreg, out_file=None, feature_names=X.columns))

This will display it in SVG format. Code above produces Graphviz's Source object (source_code - not scary) That would be rendered directly in jupyter.

Some things you are likely to do with it

Display it in jupter:

from IPython.display import SVG
graph = Source( tree.export_graphviz(dtreg, out_file=None, feature_names=X.columns))
SVG(graph.pipe(format='svg'))

Save as png:

graph = Source( tree.export_graphviz(dtreg, out_file=None, feature_names=X.columns))
graph.format = 'png'
graph.render('dtree_render',view=True)

Get the png image, save it and view it:

graph = Source( tree.export_graphviz(dtreg, out_file=None, feature_names=X.columns))
png_bytes = graph.pipe(format='png')
with open('dtree_pipe.png','wb') as f:
    f.write(png_bytes)

from IPython.display import Image
Image(png_bytes)

If you are going to play with that lib here are the links to examples and userguide

I had the same problem with a minor difference, I was using Databinding, and I was setting recyclerView adapter and the layoutManager in the binding methods.

The problem was that data-binding was happening after onResume so it was resetting my layoutManager after onResume and that means it was scrolling back to original place every time. So when I stopped setting layoutManager in Databinding adaptor methods, it works fine again.

here is how to update a docker container config permanently

1. stop container: docker stop <container name>
2. edit container config: docker run -it -v /var/lib/docker:/var/lib/docker alpine vi $(docker inspect --format='/var/lib/docker/containers/{{.Id}}/config.v2.json' <container name>)
3. restart docker

A simple return statement will 'stop' or return the function; in precise terms, it 'returns' function execution to the point at which the function was called - the function is terminated without further action.

That means you could have a number of places throughout your function where it might return. Like this:

def player():
    # do something here
    check_winner_variable = check_winner()  # check something 
    if check_winner_variable == '1': 
        return
    second_test_variable = second_test()
    if second_test_variable == '1': 
        return
       
    # let the computer do something
    computer()

This kind of code perhaps should work for You

SELECT
 *,
 CASE
  WHEN (pvc IS NULL OR pvc = '') AND (datepose < 1980) THEN '01'
  WHEN (pvc IS NULL OR pvc = '') AND (datepose >= 1980) THEN '02'
  WHEN (pvc IS NULL OR pvc = '') AND (datepose IS NULL OR datepose = 0) THEN '03'
  ELSE '00'
 END AS modifiedpvc
FROM my_table;


 gid | datepose | pvc | modifiedpvc 
-----+----------+-----+-------------
   1 |     1961 | 01  | 00
   2 |     1949 |     | 01
   3 |     1990 | 02  | 00
   1 |     1981 |     | 02
   1 |          | 03  | 00
   1 |          |     | 03
(6 rows)

Your XML is slightly wrong, you need to add any class exclusions within an excludes parent field, so your above configuration should look like the following as per the Jacoco docs

<configuration>
    <excludes>
        <exclude>**/*Config.*</exclude>
        <exclude>**/*Dev.*</exclude>
    </excludes>
</configuration>

The values of the exclude fields should be class paths (not package names) of the compiled classes relative to the directory target/classes/ using the standard wildcard syntax

*   Match zero or more characters
**  Match zero or more directories
?   Match a single character

You may also exclude a package and all of its children/subpackages this way:

<exclude>some/package/**/*</exclude>

This will exclude every class in some.package, as well as any children. For example, some.package.child wouldn't be included in the reports either.

I have tested and my report goal reports on a reduced number of classes using the above.

If you are then pushing this report into Sonar, you will then need to tell Sonar to exclude these classes in the display which can be done in the Sonar settings

Settings > General Settings > Exclusions > Code Coverage

Sonar Docs explains it a bit more

Running your command above

mvn clean verify

Will show the classes have been excluded

No exclusions

[INFO] --- jacoco-maven-plugin:0.7.4.201502262128:report (post-test) @ ** ---
[INFO] Analyzed bundle '**' with 37 classes

With exclusions

[INFO] --- jacoco-maven-plugin:0.7.4.201502262128:report (post-test) @ ** ---
[INFO] Analyzed bundle '**' with 34 classes

Hope this helps

Quick fix - make sure all variables which do not get initialized when they are created (eg var num : Int? vs var num = 5) have either a ? or !.

Long answer (reccomended) - read the doc as per mprivat suggests...

You should use the unslick method:

function getSliderSettings(){
  return {
    infinite: true,
    slidesToShow: 3,
    slidesToScroll: 1
  }
}

$.ajax({
  type: 'get',
  url: '/public/index',
  dataType: 'script',
  data: data_send,
  success: function() {
    $('.skills_section').slick('unslick'); /* ONLY remove the classes and handlers added on initialize */
    $('.my-slide').remove(); /* Remove current slides elements, in case that you want to show new slides. */
    $('.skills_section').slick(getSliderSettings()); /* Initialize the slick again */
  }
});

To be verbose it the removal of extension is demonstrated for workbooks.. which now have a variety of extensions . . a new unsaved Book1 has no ext . works the same for files

Function WorkbookIsOpen(FWNa$, Optional AnyExt As Boolean = False) As Boolean

Dim wWB As Workbook, WBNa$, PD%
FWNa = Trim(FWNa)
If FWNa <> "" Then
    For Each wWB In Workbooks
        WBNa = wWB.Name
        If AnyExt Then
            PD = InStr(WBNa, ".")
            If PD > 0 Then WBNa = Left(WBNa, PD - 1)
            PD = InStr(FWNa, ".")
            If PD > 0 Then FWNa = Left(FWNa, PD - 1)
            '
            ' the alternative of using split..  see commented out  below
            ' looks neater but takes a bit longer then the pair of instr and left
            ' VBA does about 800,000  of these small splits/sec
            ' and about 20,000,000  Instr Lefts per sec
            ' of course if not checking for other extensions they do not matter
            ' and to any reasonable program
            ' THIS DISCUSSIONOF TIME TAKEN DOES NOT MATTER
            ' IN doing about doing 2000 of this routine per sec

            ' WBNa = Split(WBNa, ".")(0)
            'FWNa = Split(FWNa, ".")(0)
        End If

        If WBNa = FWNa Then
            WorkbookIsOpen = True
            Exit Function
        End If
    Next wWB
End If

End Function

Even if I want to return a business logic error as HTTP code there is no such acceptable HTTP error code for that errors rather than using HTTP 200 because it will misrepresent the actual error.

So, HTTP 200 will be good for business logic errors. But all errors which are covered by HTTP error codes should use them.

Basically HTTP 200 means what server correctly processes user request (in case of there is no seats on the plane it is no matter because user request was correctly processed, it can even return just a number of seats available on the plane, so there will be no business logic errors at all or that business logic can be on client side. Business logic error is an abstract meaning, but HTTP error is more definite).

The command yum that you launch was executed properly. It returns a non zero status which means that an error occured during the processing of the command. You probably want to add some argument to your yum command to fix that.

Your code could show this error this way:

import subprocess
try:
    subprocess.check_output("dir /f",shell=True,stderr=subprocess.STDOUT)
except subprocess.CalledProcessError as e:
    raise RuntimeError("command '{}' return with error (code {}): {}".format(e.cmd, e.returncode, e.output))

//
//  iOSDevCenters+GIF.swift
//  GIF-Swift
//
//  Created by iOSDevCenters on 11/12/15.
//  Copyright © 2016 iOSDevCenters. All rights reserved.
//
import UIKit
import ImageIO


extension UIImage {

public class func gifImageWithData(data: NSData) -> UIImage? {
    guard let source = CGImageSourceCreateWithData(data, nil) else {
        print("image doesn't exist")
        return nil
    }

    return UIImage.animatedImageWithSource(source: source)
}

public class func gifImageWithURL(gifUrl:String) -> UIImage? {
    guard let bundleURL = NSURL(string: gifUrl)
        else {
            print("image named \"\(gifUrl)\" doesn't exist")
            return nil
    }
    guard let imageData = NSData(contentsOf: bundleURL as URL) else {
        print("image named \"\(gifUrl)\" into NSData")
        return nil
    }

    return gifImageWithData(data: imageData)
}

public class func gifImageWithName(name: String) -> UIImage? {
    guard let bundleURL = Bundle.main
        .url(forResource: name, withExtension: "gif") else {
            print("SwiftGif: This image named \"\(name)\" does not exist")
            return nil
    }

    guard let imageData = NSData(contentsOf: bundleURL) else {
        print("SwiftGif: Cannot turn image named \"\(name)\" into NSData")
        return nil
    }

    return gifImageWithData(data: imageData)
}

class func delayForImageAtIndex(index: Int, source: CGImageSource!) -> Double {
    var delay = 0.1

    let cfProperties = CGImageSourceCopyPropertiesAtIndex(source, index, nil)
    let gifProperties: CFDictionary = unsafeBitCast(CFDictionaryGetValue(cfProperties, Unmanaged.passUnretained(kCGImagePropertyGIFDictionary).toOpaque()), to: CFDictionary.self)

    var delayObject: AnyObject = unsafeBitCast(CFDictionaryGetValue(gifProperties, Unmanaged.passUnretained(kCGImagePropertyGIFUnclampedDelayTime).toOpaque()), to: AnyObject.self)

    if delayObject.doubleValue == 0 {
        delayObject = unsafeBitCast(CFDictionaryGetValue(gifProperties, Unmanaged.passUnretained(kCGImagePropertyGIFDelayTime).toOpaque()), to: AnyObject.self)
    }

    delay = delayObject as! Double

    if delay < 0.1 {
        delay = 0.1
    }

    return delay
}

class func gcdForPair(a: Int?, _ b: Int?) -> Int {
    var a = a
    var b = b
    if b == nil || a == nil {
        if b != nil {
            return b!
        } else if a != nil {
            return a!
        } else {
            return 0
        }
    }

    if a! < b! {
        let c = a!
        a = b!
        b = c
    }

    var rest: Int
    while true {
        rest = a! % b!

        if rest == 0 {
            return b!
        } else {
            a = b!
            b = rest
        }
    }
}

class func gcdForArray(array: Array<Int>) -> Int {
    if array.isEmpty {
        return 1
    }

    var gcd = array[0]

    for val in array {
        gcd = UIImage.gcdForPair(a: val, gcd)
    }

    return gcd
}

class func animatedImageWithSource(source: CGImageSource) -> UIImage? {
    let count = CGImageSourceGetCount(source)
    var images = [CGImage]()
    var delays = [Int]()

    for i in 0..<count {
        if let image = CGImageSourceCreateImageAtIndex(source, i, nil) {
            images.append(image)
        }

        let delaySeconds = UIImage.delayForImageAtIndex(index: Int(i), source: source)
        delays.append(Int(delaySeconds * 1000.0)) // Seconds to ms
    }

    let duration: Int = {
        var sum = 0

        for val: Int in delays {
            sum += val
        }

        return sum
    }()

    let gcd = gcdForArray(array: delays)
    var frames = [UIImage]()

    var frame: UIImage
    var frameCount: Int
    for i in 0..<count {
        frame = UIImage(cgImage: images[Int(i)])
        frameCount = Int(delays[Int(i)] / gcd)

        for _ in 0..<frameCount {
            frames.append(frame)
        }
    }

    let animation = UIImage.animatedImage(with: frames, duration: Double(duration) / 1000.0)

    return animation
}
}

Here is the file updated for Swift 3

Using docker links, you can link the upstream container to the nginx container. An added feature is that docker manages the host file, which means you'll be able to refer to the linked container using a name rather than the potentially random ip.

The error is:

Can not deserialize instance of java.lang.String out of START_ARRAY token at [Source: line: 1, column: 1095] (through reference chain: JsonGen["platforms"])

In JSON, platforms look like this:

"platforms": [
    {
        "platform": "iphone"
    },
    {
        "platform": "ipad"
    },
    {
        "platform": "android_phone"
    },
    {
        "platform": "android_tablet"
    }
]

So try change your pojo to something like this:

private List platforms;

public List getPlatforms(){
    return this.platforms;
}

public void setPlatforms(List platforms){
    this.platforms = platforms;
}

EDIT: you will need change mobile_networks too. Will look like this:

private List mobile_networks;

public List getMobile_networks() {
    return mobile_networks;
}

public void setMobile_networks(List mobile_networks) {
    this.mobile_networks = mobile_networks;
}

The problem is the tv.setText(text). The variable tv is probably null and you call the setText method on that null, which you can't. My guess that the problem is on the findViewById method, but it's not here, so I can't tell more, without the code.

If you have already set labels for your axis like how @andyhasit and @Marcus mentioned, and would like to change it at a later time, then you can try this:

chart.options.scales.yAxes[ 0 ].scaleLabel.labelString = "New Label";

Full config for reference:

var chartConfig = {
    type: 'line',
    data: {
      datasets: [ {
        label: 'DefaultLabel',
        backgroundColor: '#ff0000',
        borderColor: '#ff0000',
        fill: false,
        data: [],
      } ]
    },
    options: {
      responsive: true,
      scales: {
        xAxes: [ {
          type: 'time',
          display: true,
          scaleLabel: {
            display: true,
            labelString: 'Date'
          },
          ticks: {
            major: {
              fontStyle: 'bold',
              fontColor: '#FF0000'
            }
          }
        } ],
        yAxes: [ {
          display: true,
          scaleLabel: {
            display: true,
            labelString: 'value'
          }
        } ]
      }
    }
  };

Update: I wrote a solution that doesn't require reading the entire file in one go. It's too big for a stackoverflow answer, but can be found here jsonstream.

You can use json.JSONDecoder.raw_decode to decode arbitarily big strings of "stacked" JSON (so long as they can fit in memory). raw_decode stops once it has a valid object and returns the last position where wasn't part of the parsed object. It's not documented, but you can pass this position back to raw_decode and it start parsing again from that position. Unfortunately, the Python json module doesn't accept strings that have prefixing whitespace. So we need to search to find the first none-whitespace part of your document.

from json import JSONDecoder, JSONDecodeError
import re

NOT_WHITESPACE = re.compile(r'[^\s]')

def decode_stacked(document, pos=0, decoder=JSONDecoder()):
    while True:
        match = NOT_WHITESPACE.search(document, pos)
        if not match:
            return
        pos = match.start()
        
        try:
            obj, pos = decoder.raw_decode(document, pos)
        except JSONDecodeError:
            # do something sensible if there's some error
            raise
        yield obj

s = """

{"a": 1}  


   [
1
,   
2
]


"""

for obj in decode_stacked(s):
    print(obj)

prints:

{'a': 1}
[1, 2]

You can use pandas.DataFrame.fillna with the method='ffill' option. 'ffill' stands for 'forward fill' and will propagate last valid observation forward. The alternative is 'bfill' which works the same way, but backwards.

import pandas as pd

df = pd.DataFrame([[1, 2, 3], [4, None, None], [None, None, 9]])
df = df.fillna(method='ffill')

print(df)
#   0  1  2
#0  1  2  3
#1  4  2  3
#2  4  2  9

There is also a direct synonym function for this, pandas.DataFrame.ffill, to make things simpler.

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.client.RestTemplate;

@Configuration
public class RestTemplateClient {
    @Bean
    public RestTemplate restTemplate() {
        return new RestTemplate();
    }
}

Uploading a file to AWS s3 and sending the url in response for accessing the file.

Multer is a node.js middleware for handling multipart/form-data, which is primarily used for uploading files. It is written on top of busboy for maximum efficiency. check this npm module here.

When you are sending the request, make sure the headers, have Content-Type is multipart/form-data. We are sending the file location in the response, which will give the url, but if you want to access that url, make the bucket public or else you will not be able to access it.

upload.router.js

const express = require('express');
const router = express.Router();
const AWS = require('aws-sdk');
const multer = require('multer');
const storage = multer.memoryStorage()
const upload = multer({storage: storage});

const s3Client = new AWS.S3({
    accessKeyId: 'your_access_key_id',
    secretAccessKey: 'your_secret_access_id',
    region :'ur region'
});

const uploadParams = {
         Bucket: 'ur_bucket_name', 
         Key: '', // pass key
         Body: null, // pass file body
};


router.post('/api/file/upload', upload.single("file"),(req,res) => {
    const params = uploadParams;

    uploadParams.Key = req.file.originalname;
    uploadParams.Body = req.file.buffer;

    s3Client.upload(params, (err, data) => {
        if (err) {
            res.status(500).json({error:"Error -> " + err});
        }
        res.json({message: 'File uploaded successfully','filename': 
        req.file.originalname, 'location': data.Location});
    });
});

module.exports = router;

app.js

const express = require('express');
const app = express();

const router = require('./app/routers/upload.router.js');
app.use('/', router);

// Create a Server
  const server = app.listen(8080, () => {
  console.log("App listening at 8080"); 
})

I agree with noa -- if you need to have multiple versions of node, io.js then brew is not the appropriate solution.

You can help beta-test io.js support in nvm: https://github.com/creationix/nvm/pull/616

If you just want io.js and are not switching versions, then you can install the binary distribution of io.js from https://iojs.org/dist/v1.0.2/iojs-v1.0.2-darwin-x64.tar.gz ; that includes npm and you will not need nvm if you are not switching versions.

Remember to update npm after installing: sudo npm install -g npm@latest

If you want to use the ISO8601DateFormatter() with a date from a Rails 4+ JSON feed (and don't need millis of course), you need to set a few options on the formatter for it to work right otherwise the the date(from: string) function will return nil. Here's what I'm using:

extension Date {
    init(dateString:String) {
        self = Date.iso8601Formatter.date(from: dateString)!
    }

    static let iso8601Formatter: ISO8601DateFormatter = {
        let formatter = ISO8601DateFormatter()
        formatter.formatOptions = [.withFullDate,
                                          .withTime,
                                          .withDashSeparatorInDate,
                                          .withColonSeparatorInTime]
        return formatter
    }()
}

Here's the result of using the options verses not in a playground screenshot:

def cube(x):
    if 0<=x: return x**(1./3.)
    return -(-x)**(1./3.)
print (cube(8))
print (cube(-8))

Here is the full answer for both negative and positive numbers.

>>> 
2.0
-2.0
>>> 

Or here is a one-liner;

root_cube = lambda x: x**(1./3.) if 0<=x else -(-x)**(1./3.)

We can use replace to change the values in 'mpg' to NA that corresponds to cyl==4.

mtcars %>%
     mutate(mpg=replace(mpg, cyl==4, NA)) %>%
     as.data.frame()

The following may help (study the impacts of disable-verity first):

adb root
adb disable-verity
adb reboot

If you want to print the last 10 lines, use

tail(dataset, 10)

for the first 10, you could also do

head(dataset, 10)

I would prefer to shelve changes instead of stashing them if I am not sharing my changes elsewhere.

Stashing is a git feature and doesn't give you the option to select specific files or changes inside a file. Shelving can do that but this is an IDE-specific feature, not a git feature:

As you can see I am able to choose to specify which files/lines to include on my shelve. Note that I can't do that with stashing.

Beware using shelves in the IDE may limit the portability of your patches because those changes are not stored in a .git folder.

Some helpful links:

• https://www.jetbrains.com/help/idea/shelving-and-unshelving-changes.html
• https://www.jetbrains.com/help/idea/work-on-several-features-simultaneously.html

If the data has column and index labels that you want to preserve, there are a few options.

Example data:

>>> df = pd.DataFrame([[1,2,3],[3,4,5]], \
       columns=('first', 'second', 'third'), \
       index=('alpha', 'beta')) 
>>> df
       first  second  third
alpha      1       2      3
beta       3       4      5

The tolist() method described in other answers is useful but yields only the core data - which may not be enough, depending on your needs.

>>> df.values.tolist()
[[1, 2, 3], [3, 4, 5]]

One approach is to convert the DataFrame to json using df.to_json() and then parse it again. This is cumbersome but does have some advantages, because the to_json() method has some useful options.

>>> df.to_json()
{
  "first":{"alpha":1,"beta":3},
  "second":{"alpha":2,"beta":4},"third":{"alpha":3,"beta":5}
}

>>> df.to_json(orient='split')
{
 "columns":["first","second","third"],
 "index":["alpha","beta"],
 "data":[[1,2,3],[3,4,5]]
}

Cumbersome but may be useful.

The good news is that it's pretty straightforward to build lists for the columns and rows:

>>> columns = [df.index.name] + [i for i in df.columns]
>>> rows = [[i for i in row] for row in df.itertuples()]

This yields:

>>> print(f"columns: {columns}\nrows: {rows}") 
columns: [None, 'first', 'second', 'third']
rows: [['alpha', 1, 2, 3], ['beta', 3, 4, 5]]

If the None as the name of the index is bothersome, rename it:

df = df.rename_axis('stage')

Then:

>>> columns = [df.index.name] + [i for i in df.columns]
>>> print(f"columns: {columns}\nrows: {rows}") 

columns: ['stage', 'first', 'second', 'third']
rows: [['alpha', 1, 2, 3], ['beta', 3, 4, 5]]

If you already have a wheel file (.whl) on your pc, then just go with the following code:

cd ../user
pip install file.whl

If you want to download a file from web, and then install it, go with the following in command line:

pip install package_name

or, if you have the url:

pip install http//websiteurl.com/filename.whl

This will for sure install the required file.

Note: I had to type pip2 instead of pip while using Python 2.