There are very few cases where you want to use except:. Doing this captures any exception, which can be hard to debug, and it captures exceptions including SystemExit and KeyboardInterupt, which can make your program annoying to use..
At the very simplest, you would catch urllib2.URLError:
try:
urllib2.urlopen("http://example.com", timeout = 1)
except urllib2.URLError, e:
raise MyException("There was an error: %r" % e)
The following should capture the specific error raised when the connection times out:
import urllib2
import socket
class MyException(Exception):
pass
try:
urllib2.urlopen("http://example.com", timeout = 1)
except urllib2.URLError, e:
# For Python 2.6
if isinstance(e.reason, socket.timeout):
raise MyException("There was an error: %r" % e)
else:
# reraise the original error
raise
except socket.timeout, e:
# For Python 2.7
raise MyException("There was an error: %r" % e)
Since ASP.Net core 1.0 (vNext or whatever name is used for it) sessions are implemented differently.
I changed the session timeout value in Startup.cs, void ConfigureServices using:
services.AddSession(options => options.IdleTimeout = TimeSpan.FromSeconds(42));
Or if you want to use the appsettings.json file, you can do something like:
// Appsettings.json
"SessionOptions": {
"IdleTimeout": "00:30:00"
}
// Startup.cs
services.AddSession(options => options.IdleTimeout = TimeSpan.Parse(Config.GetSection("SessionOptions")["IdleTimeout"]));
You can use this:
var refreshIntervalId = null;
refreshIntervalId = setInterval(checkIfVariableIsSet, 1000);
var checkIfVariableIsSet = function()
{
if(typeof someVariable !== 'undefined'){
$('a.play').trigger("click");
clearInterval(refreshIntervalId);
}
};
You need to return a Callable<> if you want spring.mvc.async.request-timeout=5000 to work.
@RequestMapping(method = RequestMethod.GET)
public Callable<String> getFoobar() throws InterruptedException {
return new Callable<String>() {
@Override
public String call() throws Exception {
Thread.sleep(8000); //this will cause a timeout
return "foobar";
}
};
}
The Default Expiration Period for Session is 20 Minutes.
You can update sessionstate and configure the minutes under timeout
<sessionState
timeout="30">
</sessionState>
That's the nature of TCP: the protocol fills up packets (lower layer being IP packets) and sends them. You can have some degree of control over the MTU (Maximum Transfer Unit).
In other words: you must devise a protocol that rides on top of TCP where your "payload delineation" is defined. By "payload delineation" I mean the way you extract the unit of message your protocol supports. This can be as simple as "every NULL terminated strings".
I have a slight modification of @Tiago Lopo's answer that can handle commands with multiple arguments. I've also tested TauPan's solution, but it does not work if you use it multiple times in a script, while Tiago's does.
function timeout_cmd {
local arr
local cmd
local timeout
arr=( "$@" )
# timeout: first arg
# cmd: the other args
timeout="${arr[0]}"
cmd=( "${arr[@]:1}" )
(
eval "${cmd[@]}" &
child=$!
echo "child: $child"
trap -- "" SIGTERM
(
sleep "$timeout"
kill "$child" 2> /dev/null
) &
wait "$child"
)
}
Here's a fully functional script thant you can use to test the function above:
$ ./test_timeout.sh -h
Usage:
test_timeout.sh [-n] [-r REPEAT] [-s SLEEP_TIME] [-t TIMEOUT]
test_timeout.sh -h
Test timeout_cmd function.
Options:
-n Dry run, do not actually sleep.
-r REPEAT Reapeat everything multiple times [default: 1].
-s SLEEP_TIME Sleep for SLEEP_TIME seconds [default: 5].
-t TIMEOUT Timeout after TIMEOUT seconds [default: no timeout].
For example you cnal launch like this:
$ ./test_timeout.sh -r 2 -s 5 -t 3
Try no: 1
- Set timeout to: 3
child: 2540
-> retval: 143
-> The command timed out
Try no: 2
- Set timeout to: 3
child: 2593
-> retval: 143
-> The command timed out
Done!
#!/usr/bin/env bash
#shellcheck disable=SC2128
SOURCED=false && [ "$0" = "$BASH_SOURCE" ] || SOURCED=true
if ! $SOURCED; then
set -euo pipefail
IFS=$'\n\t'
fi
#################### helpers
function check_posint() {
local re='^[0-9]+$'
local mynum="$1"
local option="$2"
if ! [[ "$mynum" =~ $re ]] ; then
(echo -n "Error in option '$option': " >&2)
(echo "must be a positive integer, got $mynum." >&2)
exit 1
fi
if ! [ "$mynum" -gt 0 ] ; then
(echo "Error in option '$option': must be positive, got $mynum." >&2)
exit 1
fi
}
#################### end: helpers
#################### usage
function short_usage() {
(>&2 echo \
"Usage:
test_timeout.sh [-n] [-r REPEAT] [-s SLEEP_TIME] [-t TIMEOUT]
test_timeout.sh -h"
)
}
function usage() {
(>&2 short_usage )
(>&2 echo \
"
Test timeout_cmd function.
Options:
-n Dry run, do not actually sleep.
-r REPEAT Reapeat everything multiple times [default: 1].
-s SLEEP_TIME Sleep for SLEEP_TIME seconds [default: 5].
-t TIMEOUT Timeout after TIMEOUT seconds [default: no timeout].
")
}
#################### end: usage
help_flag=false
dryrun_flag=false
SLEEP_TIME=5
TIMEOUT=-1
REPEAT=1
while getopts ":hnr:s:t:" opt; do
case $opt in
h)
help_flag=true
;;
n)
dryrun_flag=true
;;
r)
check_posint "$OPTARG" '-r'
REPEAT="$OPTARG"
;;
s)
check_posint "$OPTARG" '-s'
SLEEP_TIME="$OPTARG"
;;
t)
check_posint "$OPTARG" '-t'
TIMEOUT="$OPTARG"
;;
\?)
(>&2 echo "Error. Invalid option: -$OPTARG.")
(>&2 echo "Try -h to get help")
short_usage
exit 1
;;
:)
(>&2 echo "Error.Option -$OPTARG requires an argument.")
(>&2 echo "Try -h to get help")
short_usage
exit 1
;;
esac
done
if $help_flag; then
usage
exit 0
fi
#################### utils
if $dryrun_flag; then
function wrap_run() {
( echo -en "[dry run]\\t" )
( echo "$@" )
}
else
function wrap_run() { "$@"; }
fi
# Execute a shell function with timeout
# https://stackoverflow.com/a/24416732/2377454
function timeout_cmd {
local arr
local cmd
local timeout
arr=( "$@" )
# timeout: first arg
# cmd: the other args
timeout="${arr[0]}"
cmd=( "${arr[@]:1}" )
(
eval "${cmd[@]}" &
child=$!
echo "child: $child"
trap -- "" SIGTERM
(
sleep "$timeout"
kill "$child" 2> /dev/null
) &
wait "$child"
)
}
####################
function sleep_func() {
local secs
local waitsec
waitsec=1
secs=$(($1))
while [ "$secs" -gt 0 ]; do
echo -ne "$secs\033[0K\r"
sleep "$waitsec"
secs=$((secs-waitsec))
done
}
command=("wrap_run" \
"sleep_func" "${SLEEP_TIME}"
)
for i in $(seq 1 "$REPEAT"); do
echo "Try no: $i"
if [ "$TIMEOUT" -gt 0 ]; then
echo " - Set timeout to: $TIMEOUT"
set +e
timeout_cmd "$TIMEOUT" "${command[@]}"
retval="$?"
set -e
echo " -> retval: $retval"
# check if (retval % 128) == SIGTERM (== 15)
if [[ "$((retval % 128))" -eq 15 ]]; then
echo " -> The command timed out"
fi
else
echo " - No timeout"
"${command[@]}"
retval="$?"
fi
done
echo "Done!"
exit 0
public class ApiClient {
private static Retrofit retrofit = null;
private static final Object LOCK = new Object();
public static void clear() {
synchronized (LOCK) {
retrofit = null;
}
}
public static Retrofit getClient() {
synchronized (LOCK) {
if (retrofit == null) {
Gson gson = new GsonBuilder()
.setLenient()
.create();
OkHttpClient okHttpClient = new OkHttpClient().newBuilder()
.connectTimeout(40, TimeUnit.SECONDS)
.readTimeout(60, TimeUnit.SECONDS)
.writeTimeout(60, TimeUnit.SECONDS)
.build();
retrofit = new Retrofit.Builder()
.client(okHttpClient)
.baseUrl(Constants.WEB_SERVICE)
.addConverterFactory(GsonConverterFactory.create(gson))
.build();
}
return retrofit;
}
}
public static RequestBody plain(String content) {
return getRequestBody("text/plain", content);
}
public static RequestBody getRequestBody(String type, String content) {
return RequestBody.create(MediaType.parse(type), content);
}
}
@FormUrlEncoded
@POST("architect/project_list_Design_files")
Call<DesignListModel> getProjectDesign(
@Field("project_id") String project_id);
@Multipart
@POST("architect/upload_design")
Call<BoqListModel> getUpLoadDesign(
@Part("user_id") RequestBody user_id,
@Part("request_id") RequestBody request_id,
@Part List<MultipartBody.Part> image_file,
@Part List<MultipartBody.Part> design_upload_doc);
private void getMyProjectList()
{
ApiInterface apiService = ApiClient.getClient().create(ApiInterface.class);
Call<MyProjectListModel> call = apiService.getMyProjectList("",Sorting,latitude,longitude,Search,Offset+"",Limit);
call.enqueue(new Callback<MyProjectListModel>() {
@Override
public void onResponse(Call<MyProjectListModel> call, Response<MyProjectListModel> response) {
try {
Log.e("response",response.body()+"");
} catch (Exception e)
{
Log.e("onResponse: ", e.toString());
}
}
@Override
public void onFailure(Call<MyProjectListModel> call, Throwable t)
{
Log.e( "onFailure: ",t.toString());
}
});
}
// file upload
private void getUpload(String path,String id)
{
ApiInterface apiService = ApiClient.getClient().create(ApiInterface.class);
MultipartBody.Part GalleryImage = null;
if (path!="")
{
File file = new File(path);
RequestBody reqFile = RequestBody.create(MediaType.parse("multipart/form-data"), file);
GalleryImage = MultipartBody.Part.createFormData("image", file.getName(), reqFile);
}
RequestBody UserId = RequestBody.create(MediaType.parse("text/plain"), id);
Call<uplod_file> call = apiService.geUplodFileCall(UserId,GalleryImage);
call.enqueue(new Callback<uplod_file>() {
@Override
public void onResponse(Call<uplod_file> call, Response<uplod_file> response) {
try {
Log.e("response",response.body()+"");
Toast.makeText(getApplicationContext(),response.body().getMessage(),Toast.LENGTH_SHORT).show();
} catch (Exception e)
{
Log.e("onResponse: ", e.toString());
}
}
@Override
public void onFailure(Call<uplod_file> call, Throwable t)
{
Log.e( "onFailure: ",t.toString());
}
});
}
implementation 'com.squareup.retrofit2:retrofit:2.4.0'
implementation 'com.squareup.retrofit2:converter-gson:2.4.0'
We've had hard times on Timeout expired/max pool reached Sqlexception. As a workarround and to prevent restarting the server or the service we modify the MAX SERVER MEMORY variable in SQL Server (either through SQL Managment Studio or T-SQL):
DECLARE @maxMem INT = 3000 --Max. memory for SQL Server instance in MB
EXEC sp_configure 'show advanced options', 1
RECONFIGURE
This temporarily fixes the issue until it happens again. In our case we suspect that it has to do with connection leaks at app level.
This was already mentioned in a comment by benvoliot above. But, I think it's worth a top-level post because it sure had me scratching my head. I'm posting this in case it helps someone else out.
I wrote a simple test client and the CoreConnectionPNames.CONNECTION_TIMEOUT timeout works perfectly in that case. The request gets canceled if the server doesn't respond.
Inside the server code I was actually trying to test however, the identical code never times out.
Changing it to time out on the socket connection activity (CoreConnectionPNames.SO_TIMEOUT) rather than the HTTP connection (CoreConnectionPNames.CONNECTION_TIMEOUT) fixed the problem for me.
Also, read the Apache docs carefully: http://hc.apache.org/httpcomponents-core-ga/httpcore/apidocs/org/apache/http/params/CoreConnectionPNames.html#CONNECTION_TIMEOUT
Note the bit that says
Please note this parameter can only be applied to connections that are bound to a particular local address.
I hope that saves someone else all the head scratching I went through. That will teach me not to read the documentation thoroughly!
See InnerFade.
<script type="text/javascript">
$(document).ready(
function() {
$('#portfolio').innerfade({
speed: 'slow',
timeout: 10000,
type: 'sequence',
containerheight: '220px'
});
});
</script>
<ul id="portfolio">
<li>
<a href="http://medienfreunde.com/deutsch/referenzen/kreation/good_guy__bad_guy.html">
<img src="images/ggbg.gif" alt="Good Guy bad Guy" />
</a>
</li>
<li>
<a href="http://medienfreunde.com/deutsch/referenzen/kreation/whizzkids.html">
<img src="images/whizzkids.gif" alt="Whizzkids" />
</a>
</li>
<li>
<a href="http://medienfreunde.com/deutsch/referenzen/printdesign/koenigin_mutter.html">
<img src="images/km.jpg" alt="Königin Mutter" />
</a>
</li>
<li>
<a href="http://medienfreunde.com/deutsch/referenzen/webdesign/rt_reprotechnik_-_hybride_archivierung.html">
<img src="images/rt_arch.jpg" alt="RT Hybride Archivierung" />
</a>
</li>
<li>
<a href="http://medienfreunde.com/deutsch/referenzen/kommunikation/tuev_sued_gruppe.html">
<img src="images/tuev.jpg" alt="TÜV SÜD Gruppe" />
</a>
</li>
</ul>
Please see this link http://bugs.php.net/bug.php?id=45150 seems like they moved to native MYSQL support in PHP5.3 and it has some trouble working with IPV6. Try using "127.0.0.1" instead of "localhost"
At this moment there is a method to do this directly on the request object:
request.setTimeout(timeout, function() {
request.abort();
});
This is a shortcut method that binds to the socket event and then creates the timeout.
Reference: Node.js v0.8.8 Manual & Documentation
In app.config file (or .exe.config) you can add or change the "receiveTimeout" property in binding. like this
<binding name="WebServiceName" receiveTimeout="00:00:59" />
I get this a lot. I'm on a Galaxy S too. I unplug the cable from the phone, plug it back in and try launching the app again from Eclipse, and it usually does the trick. Eclipse seems to lose the connection to the phone occasionally but this seems to kick it back to life.
Ben Alman wrote a sweet plugin for jQuery called doTimeout. It has a lot of nice features!
Check it out here: jQuery doTimeout: Like setTimeout, but better.
You can set the session time out in php.ini. The default value is 1440 seconds
session.gc_maxlifetime = 1440
; NOTE: If you are using the subdirectory option for storing session files
; (see session.save_path above), then garbage collection does *not*
; happen automatically. You will need to do your own garbage
; collection through a shell script, cron entry, or some other method.
; For example, the following script would is the equivalent of
; setting session.gc_maxlifetime to 1440 (1440 seconds = 24 minutes):
; find /path/to/sessions -cmin +24 -type f | xargs rm
Byterbit solution is problematic because:
for cookies, setting expiration via session.cookie_lifetime is the right solution design-wise and security-wise! for expiring the session, you can use session.gc_maxlifetime.
expiring the cookies by calling session_destroy might yield unpredictable results because they might have already been expired.
making the change in php.ini is also a valid solution but it makes the expiration global for the entire domain which might not be what you really want - some pages might choose to keep some cookies more than others.
I think the easiest way here is to preload the json or load it once on$dirty and then the filter search will take care of the rest. This'll save you the extra http calls and its much faster with preloaded data. Memory will hurt, but its worth it.
If it is test code you want to time, then you can use the time attribute:
@Test(timeout = 1000)
public void shouldTakeASecondOrLess()
{
}
If it is production code, there is no simple mechanism, and which solution you use depends upon whether you can alter the code to be timed or not.
If you can change the code being timed, then a simple approach is is to have your timed code remember it's start time, and periodically the current time against this. E.g.
long startTime = System.currentTimeMillis();
// .. do stuff ..
long elapsed = System.currentTimeMillis()-startTime;
if (elapsed>timeout)
throw new RuntimeException("tiomeout");
If the code itself cannot check for timeout, you can execute the code on another thread, and wait for completion, or timeout.
Callable<ResultType> run = new Callable<ResultType>()
{
@Override
public ResultType call() throws Exception
{
// your code to be timed
}
};
RunnableFuture future = new FutureTask(run);
ExecutorService service = Executors.newSingleThreadExecutor();
service.execute(future);
ResultType result = null;
try
{
result = future.get(1, TimeUnit.SECONDS); // wait 1 second
}
catch (TimeoutException ex)
{
// timed out. Try to stop the code if possible.
future.cancel(true);
}
service.shutdown();
}
Something I found later which helped, is the .ReadWriteTimeout property. This, in addition to the .Timeout property seemed to finally cut down on the time threads would spend trying to download from a problematic server. The default time for .ReadWriteTimeout is 5 minutes, which for my application was far too long.
So, it seems to me:
.Timeout = time spent trying to establish a connection (not including lookup time)
.ReadWriteTimeout = time spent trying to read or write data after connection established
More info: HttpWebRequest.ReadWriteTimeout Property
Edit:
Per @KyleM's comment, the Timeout property is for the entire connection attempt, and reading up on it at MSDN shows:
Timeout is the number of milliseconds that a subsequent synchronous request made with the GetResponse method waits for a response, and the GetRequestStream method waits for a stream. The Timeout applies to the entire request and response, not individually to the GetRequestStream and GetResponse method calls. If the resource is not returned within the time-out period, the request throws a WebException with the Status property set to WebExceptionStatus.Timeout.
(Emphasis mine.)
Yes! By passing a stream context in the third parameter:
Here with a timeout of 1s:
file_get_contents("https://abcedef.com", 0, stream_context_create(["http"=>["timeout"=>1]]));
Source in comment section of https://www.php.net/manual/en/function.file-get-contents.php
method
header
user_agent
content
request_fulluri
follow_location
max_redirects
protocol_version
timeout
Other contexts: https://www.php.net/manual/en/context.php
HttpParams httpParameters = new BasicHttpParams();
HttpProtocolParams.setVersion(httpParameters, HttpVersion.HTTP_1_1);
HttpProtocolParams.setContentCharset(httpParameters,
HTTP.DEFAULT_CONTENT_CHARSET);
HttpProtocolParams.setUseExpectContinue(httpParameters, true);
// Set the timeout in milliseconds until a connection is
// established.
// The default value is zero, that means the timeout is not used.
int timeoutConnection = 35 * 1000;
HttpConnectionParams.setConnectionTimeout(httpParameters,
timeoutConnection);
// Set the default socket timeout (SO_TIMEOUT)
// in milliseconds which is the timeout for waiting for data.
int timeoutSocket = 30 * 1000;
HttpConnectionParams.setSoTimeout(httpParameters, timeoutSocket);
Server is trying to read data from the request, but its taking longer than the timeout value for the data to arrive from the client. Timeout here would typically be tomcat connector -> connectionTimeout attribute.
Correct.
Client has a read timeout set, and server is taking longer than that to respond.
No. That would cause a timeout at the client.
One of the threads i went through, said this can happen with high concurrency and if the keepalive is enabled.
That is obviously guesswork, and completely incorrect. It happens if and only if no data arrives within the timeout. Period. Load and keepalive and concurrency have nothing to do with it whatsoever.
It just means the client isn't sending. You don't need to worry about it. Browser clients come and go in all sorts of strange ways.
cleaned solution :
$.fn.donetyping = function(callback, delay){
delay || (delay = 1000);
var timeoutReference;
var doneTyping = function(elt){
if (!timeoutReference) return;
timeoutReference = null;
callback(elt);
};
this.each(function(){
var self = $(this);
self.on('keyup',function(){
if(timeoutReference) clearTimeout(timeoutReference);
timeoutReference = setTimeout(function(){
doneTyping(self);
}, delay);
}).on('blur',function(){
doneTyping(self);
});
});
return this;
};
I think this error can happen for various reasons, but it can be specific to the module you're using. For example I saw this using the uwsgi module, so had to set "uwsgi_read_timeout".
server.session.timeout=1200server.servlet.session.timeout=10mThis solution works regardless of bash monitor mode. You can use the proper signal to terminate your_command
#!/bin/sh
( your_command ) & pid=$!
( sleep $TIMEOUT && kill -HUP $pid ) 2>/dev/null & watcher=$!
wait $pid 2>/dev/null && pkill -HUP -P $watcher
The watcher kills your_command after given timeout; the script waits for the slow task and terminates the watcher. Note that wait does not work with processes which are children of a different shell.
your_command interrupted
( sleep 20 ) & pid=$!
( sleep 2 && kill -HUP $pid ) 2>/dev/null & watcher=$!
if wait $pid 2>/dev/null; then
echo "your_command finished"
pkill -HUP -P $watcher
wait $watcher
else
echo "your_command interrupted"
fi
your_command finished
( sleep 2 ) & pid=$!
( sleep 20 && kill -HUP $pid ) 2>/dev/null & watcher=$!
if wait $pid 2>/dev/null; then
echo "your_command finished"
pkill -HUP -P $watcher
wait $watcher
else
echo "your_command interrupted"
fi
I found this. Simpler than the accepted answer, and works with .NET v2
Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
// Connect using a timeout (5 seconds)
IAsyncResult result = socket.BeginConnect( sIP, iPort, null, null );
bool success = result.AsyncWaitHandle.WaitOne( 5000, true );
if ( socket.Connected )
{
socket.EndConnect( result );
}
else
{
// NOTE, MUST CLOSE THE SOCKET
socket.Close();
throw new ApplicationException("Failed to connect server.");
}
//...
After creating your client specifying the binding and endpoint address, you can assign an OperationTimeout,
client.InnerChannel.OperationTimeout = new TimeSpan(0, 5, 0);
I found that the best way to determine if the service call has timed out is to use a cancellation token and not the HttpClient's timeout property:
var cts = new CancellationTokenSource();
cts.CancelAfter(timeout);
And then handle the CancellationException during the service call...
catch(TaskCanceledException)
{
if(!cts.Token.IsCancellationRequested)
{
// Timed Out
}
else
{
// Cancelled for some other reason
}
}
Of course if the timeout occurs on the service side of things, that should be able to handled by a WebException.
As Dan Abramov said, if you want more advanced control over your async code, you might take a look at redux-saga.
This answer is a simple example, if you want better explanations on why redux-saga can be useful for your application, check this other answer.
The general idea is that Redux-saga offers an ES6 generators interpreter that permits you to easily write async code that looks like synchronous code (this is why you'll often find infinite while loops in Redux-saga). Somehow, Redux-saga is building its own language directly inside Javascript. Redux-saga can feel a bit difficult to learn at first, because you need basic understanding of generators, but also understand the language offered by Redux-saga.
I'll try here to describe here the notification system I built on top of redux-saga. This example currently runs in production.
Screenshot of my production app Stample.co
Here I named the notification a toast but this is a naming detail.
function* toastSaga() {
// Some config constants
const MaxToasts = 3;
const ToastDisplayTime = 4000;
// Local generator state: you can put this state in Redux store
// if it's really important to you, in my case it's not really
let pendingToasts = []; // A queue of toasts waiting to be displayed
let activeToasts = []; // Toasts currently displayed
// Trigger the display of a toast for 4 seconds
function* displayToast(toast) {
if ( activeToasts.length >= MaxToasts ) {
throw new Error("can't display more than " + MaxToasts + " at the same time");
}
activeToasts = [...activeToasts,toast]; // Add to active toasts
yield put(events.toastDisplayed(toast)); // Display the toast (put means dispatch)
yield call(delay,ToastDisplayTime); // Wait 4 seconds
yield put(events.toastHidden(toast)); // Hide the toast
activeToasts = _.without(activeToasts,toast); // Remove from active toasts
}
// Everytime we receive a toast display request, we put that request in the queue
function* toastRequestsWatcher() {
while ( true ) {
// Take means the saga will block until TOAST_DISPLAY_REQUESTED action is dispatched
const event = yield take(Names.TOAST_DISPLAY_REQUESTED);
const newToast = event.data.toastData;
pendingToasts = [...pendingToasts,newToast];
}
}
// We try to read the queued toasts periodically and display a toast if it's a good time to do so...
function* toastScheduler() {
while ( true ) {
const canDisplayToast = activeToasts.length < MaxToasts && pendingToasts.length > 0;
if ( canDisplayToast ) {
// We display the first pending toast of the queue
const [firstToast,...remainingToasts] = pendingToasts;
pendingToasts = remainingToasts;
// Fork means we are creating a subprocess that will handle the display of a single toast
yield fork(displayToast,firstToast);
// Add little delay so that 2 concurrent toast requests aren't display at the same time
yield call(delay,300);
}
else {
yield call(delay,50);
}
}
}
// This toast saga is a composition of 2 smaller "sub-sagas" (we could also have used fork/spawn effects here, the difference is quite subtile: it depends if you want toastSaga to block)
yield [
call(toastRequestsWatcher),
call(toastScheduler)
]
}
And the reducer:
const reducer = (state = [],event) => {
switch (event.name) {
case Names.TOAST_DISPLAYED:
return [...state,event.data.toastData];
case Names.TOAST_HIDDEN:
return _.without(state,event.data.toastData);
default:
return state;
}
};
You can simply dispatch TOAST_DISPLAY_REQUESTED events. If you dispatch 4 requests, only 3 notifications will be displayed, and the 4th one will appear a bit later once the 1st notification disappears.
Note that I don't specifically recommend dispatching TOAST_DISPLAY_REQUESTED from JSX. You'd rather add another saga that listens to your already-existing app events, and then dispatch the TOAST_DISPLAY_REQUESTED: your component that triggers the notification, does not have to be tightly coupled to the notification system.
My code is not perfect but runs in production with 0 bugs for months. Redux-saga and generators are a bit hard initially but once you understand them this kind of system is pretty easy to build.
It's even quite easy to implement more complex rules, like:
Honnestly, good luck implementing this kind of stuff properly with thunks.
Note you can do exactly the same kind of thing with redux-observable which is very similar to redux-saga. It's almost the same and is a matter of taste between generators and RxJS.
- What is the difference between connection and read timeout for sockets?
The connection timeout is the timeout in making the initial connection; i.e. completing the TCP connection handshake. The read timeout is the timeout on waiting to read data1. If the server (or network) fails to deliver any data <timeout> seconds after the client makes a socket read call, a read timeout error will be raised.
- What does connection timeout set to "infinity" mean? In what situation can it remain in an infinitive loop? and what can trigger that the infinity-loop dies?
It means that the connection attempt can potentially block for ever. There is no infinite loop, but the attempt to connect can be unblocked by another thread closing the socket. (A Thread.interrupt() call may also do the trick ... not sure.)
- What does read timeout set to "infinity" mean? In what situation can it remain in an infinite loop? What can trigger that the infinite loop to end?
It means that a call to read on the socket stream may block for ever. Once again there is no infinite loop, but the read can be unblocked by a Thread.interrupt() call, closing the socket, and (of course) the other end sending data or closing the connection.
1 - It is not ... as one commenter thought ... the timeout on how long a socket can be open, or idle.
I'm having a very similar problem. In the past, this has been related to serialization problems. If you are still having this problem, can you verify that you can correctly serialize the objects you are returning. Specifically, if you are using Linq-To-Sql objects that have relationships, there are known serialization problems if you put a back reference on a child object to the parent object and mark that back reference as a DataMember.
You can verify serialization by writing a console app that serializes and deserializes your objects using the DataContractSerializer on the server side and whatever serialization methods your client uses. For example, in our current application, we have both WPF and Compact Framework clients. I wrote a console app to verify that I can serialize using a DataContractSerializer and deserialize using an XmlDesserializer. You might try that.
Also, if you are returning Linq-To-Sql objects that have child collections, you might try to ensure that you have eagerly loaded them on the server side. Sometimes, because of lazy loading, the objects being returned are not populated and may cause the behavior you are seeing where the request is sent to the service method multiple times.
If you have solved this problem, I'd love to hear how because I'm stuck with it too. I have verified that my issue is not serialization so I'm at a loss.
UPDATE: I'm not sure if it will help you any but the Service Trace Viewer Tool just solved my problem after 5 days of very similar experience to yours. By setting up tracing and then looking at the raw XML, I found the exceptions that were causing my serialization problems. It was related to Linq-to-SQL objects that occasionally had more child objects than could be successfully serialized. Adding the following to your web.config file should enable tracing:
<sharedListeners>
<add name="sharedListener"
type="System.Diagnostics.XmlWriterTraceListener"
initializeData="c:\Temp\servicetrace.svclog" />
</sharedListeners>
<sources>
<source name="System.ServiceModel" switchValue="Verbose, ActivityTracing" >
<listeners>
<add name="sharedListener" />
</listeners>
</source>
<source name="System.ServiceModel.MessageLogging" switchValue="Verbose">
<listeners>
<add name="sharedListener" />
</listeners>
</source>
</sources>
The resulting file can be opened with the Service Trace Viewer Tool or just in IE to examine the results.
If the HTTP Connection doesn't timeout, You can implement the timeout checker in the background thread itself (AsyncTask, Service, etc), the following class is an example for Customize AsyncTask which timeout after certain period
public abstract class AsyncTaskWithTimer<Params, Progress, Result> extends
AsyncTask<Params, Progress, Result> {
private static final int HTTP_REQUEST_TIMEOUT = 30000;
@Override
protected Result doInBackground(Params... params) {
createTimeoutListener();
return doInBackgroundImpl(params);
}
private void createTimeoutListener() {
Thread timeout = new Thread() {
public void run() {
Looper.prepare();
final Handler handler = new Handler();
handler.postDelayed(new Runnable() {
@Override
public void run() {
if (AsyncTaskWithTimer.this != null
&& AsyncTaskWithTimer.this.getStatus() != Status.FINISHED)
AsyncTaskWithTimer.this.cancel(true);
handler.removeCallbacks(this);
Looper.myLooper().quit();
}
}, HTTP_REQUEST_TIMEOUT);
Looper.loop();
}
};
timeout.start();
}
abstract protected Result doInBackgroundImpl(Params... params);
}
A Sample for this
public class AsyncTaskWithTimerSample extends AsyncTaskWithTimer<Void, Void, Void> {
@Override
protected void onCancelled(Void void) {
Log.d(TAG, "Async Task onCancelled With Result");
super.onCancelled(result);
}
@Override
protected void onCancelled() {
Log.d(TAG, "Async Task onCancelled");
super.onCancelled();
}
@Override
protected Void doInBackgroundImpl(Void... params) {
// Do background work
return null;
};
}
You could look into clearTimeout()
or pause depending on a global variable that is set when a certain condition is hit. Like a button is pressed.
<button onclick="myBool = true" > pauseTimeout </button>
<script>
var myBool = false;
var t = setTimeout(function() {if (!mybool) {dosomething()}}, 5000);
</script>
I have used similar code for downloading logs from servers. I debug my code and discovered that implementation of URLConnection which is returned is sun.net.www.protocol.http.HttpURLConnection.
Abstract class java.net.URLConnection have two attributes connectTimeout and readTimeout and setters are in abstract class. Believe or not implementation sun.net.www.protocol.http.HttpURLConnection have same attributes connectTimeout and readTimeout without setters and attributes from implementation class are used in getInputStream method. So there is no use of setting connectTimeout and readTimeout because they are never used in getInputStream method. In my opinion this is bug in sun.net.www.protocol.http.HttpURLConnection implementation.
My solution for this was to use HttpClient and Get request.
Another way of doing it is in custom JsonObjectRequest by:
@Override
public RetryPolicy getRetryPolicy() {
// here you can write a custom retry policy and return it
return super.getRetryPolicy();
}
Source: Android Volley Example
In case you are on Mac, ensure that you exit Docker for Mac. This worked for me.
If session.cookie_lifetime is 0, the session cookie lives until the browser is quit.
EDIT: Others have mentioned the session.gc_maxlifetime setting. When session garbage collection occurs, the garbage collector will delete any session data that has not been accessed in longer than session.gc_maxlifetime seconds. To set the time-to-live for the session cookie, call session_set_cookie_params() or define the session.cookie_lifetime PHP setting. If this setting is greater than session.gc_maxlifetime, you should increase session.gc_maxlifetime to a value greater than or equal to the cookie lifetime to ensure that your sessions won't expire.
The ConnectTimeout option allows you to tell your ssh client how long you're willing to wait for a connection before returning an error. By setting ConnectTimeout to 1, you're effectively saying "try for at most 1 second and then fail if you haven't connected yet".
The problem is that when you connect by name, the DNS lookup can take several seconds. Connecting by IP address is much faster, and may actually work in one second or less. What sinelaw is experiencing is that every attempt to connect by DNS name is failing to occur within one second. The default setting of ConnectTimeout defers to the linux kernel connect timeout, which is usually pretty long.
I usually use set_time_limit(30) within the main loop (so each loop iteration is limited to 30 seconds rather than the whole script).
I do this in multiple database update scripts, which routinely take several minutes to complete but less than a second for each iteration - keeping the 30 second limit means the script won't get stuck in an infinite loop if I am stupid enough to create one.
I must admit that my choice of 30 seconds for the limit is somewhat arbitrary - my scripts could actually get away with 2 seconds instead, but I feel more comfortable with 30 seconds given the actual application - of course you could use whatever value you feel is suitable.
Hope this helps!
Instead of using a ServletContextListener, use a HttpSessionListener.
In the sessionCreated() method, you can set the session timeout programmatically:
public class MyHttpSessionListener implements HttpSessionListener {
public void sessionCreated(HttpSessionEvent event){
event.getSession().setMaxInactiveInterval(15 * 60); // in seconds
}
public void sessionDestroyed(HttpSessionEvent event) {}
}
And don't forget to define the listener in the deployment descriptor:
<webapp>
...
<listener>
<listener-class>com.example.MyHttpSessionListener</listener-class>
</listener>
</webapp>
(or since Servlet version 3.0 you can use @WebListener annotation instead).
Still, I would recommend creating different web.xml files for each application and defining the session timeout there:
<webapp>
...
<session-config>
<session-timeout>15</session-timeout> <!-- in minutes -->
</session-config>
</webapp>
I came from Google and I just wanted to add the solution that worked for me. My problem was I was trying to delete records of a huge table that had a lot of FK in cascade so I got the same error as the OP.
I disabled the autocommit and then it worked just adding COMMIT at the end of the SQL sentence. As far as I understood this releases the buffer bit by bit instead of waiting at the end of the command.
To keep with the example of the OP, this should have worked:
mysql> set autocommit=0;
mysql> update customer set account_import_id = 1; commit;
Do not forget to reactivate the autocommit again if you want to leave the MySQL config as before.
mysql> set autocommit=1;
I don't see any problem, unless you are not managing them using a connection pool.
If you use connection pool, these connections are re-used instead of initiating new connections. so basically, leaving open connections and re-use them it is less problematic than re-creating them each time.
In case if you are using node js, then this could be the possible solution
const express = require("express");
const app = express();
const server = app.listen(8080);
server.keepAliveTimeout = 61 * 1000;
I wrote a powerbasic program wait.exe, where you pass a millisecond parameter to it in your batch file
wait 3000
system('c:/windows/system32/SnippingTool.exe')
the code for the EXE:
FUNCTION PBMAIN()
c$ = Command$
s! = Val(c$)*1000
Sleep s!
END FUNCTION
Bit of a long shot, but on a lab a while back, we had a situation where a SQL Server appeared unresponsive, not because we had spiked the CPU or anything we could track within SQL Server, it appeared operational to all tests but connections failed under some load.
The issue turned out to be due to the volume of traffic against the server meant we were triggering the in built windows Syn Attack Flood Protection within Windows. Annoyingly when you hit this, there is no logged message within windows server, or within SQL - you only see the symtpoms which are connections failing to be made - this is because windows slows down on accepting the messages and let's a queue build. From the connection standpoint, the server appears to not respond when it should (it doesn't even acknowledge the message arrived)
http://msdn.microsoft.com/en-us/library/ee377084(v=bts.10).aspx
Scroll down to SynAttackProtect and you will see the default in windows server 2003 sp1 onwards was to enable this feature by default. It is a DDOS protection mechanism in effect, and the lack of logging that it is triggering makes it incredibly difficult to detect when your server does this.
It took 3 days within the MS lab before it was figured out.
You mentioned 100 conenctions, we had an app that constantly connected, ran queries and then disconnected, it did not hold the connections open. This meant that we had multiple threads on each machine connectiong doing this, 10 machines, multiple threads per machine, and it was considered enough different connections consistently being made / dropped to trigger the defense.
Whether you are at that level (since it is not a clearly defined threshold by MS) is hard to say.
try this it uses the underlying C.
timeval = struct.pack('ll', 2, 100)
s.setsockopt(socket.SOL_SOCKET, socket.SO_RCVTIMEO, timeval)
You can set the default time out in the server.xml
<Connector URIEncoding="UTF-8"
acceptCount="100"
connectionTimeout="20000"
disableUploadTimeout="true"
enableLookups="false"
maxHttpHeaderSize="8192"
maxSpareThreads="75"
maxThreads="150"
minSpareThreads="25"
port="7777"
redirectPort="8443"/>
Add this line to /config.inc.php:
$cfg['LoginCookieValidity'] = 36000;
In /setup/lib/index.lib.php
$cf->getValue('LoginCookieValidity') > 36000;
If you don't already have a .htaccess file for your phpMyAdmin site, create one, and add the following line to override the default PHP session timeout:
php_value session.gc_maxlifetime 36000
I would not recommend altering this value in your main php.ini file, as it will allow a ridiculously long session timeout for all your PHP sites.
source: http://www.sitekickr.com/blog/increase-phpmyadmin-timeout/
There isn't a 100% reliable way to do this for any old task. The task has to be written with this ability in mind.
Core Java libraries like ExecutorService cancel asynchronous tasks with interrupt() calls on the worker thread. So, for example, if the task contains some sort of loop, you should be checking its interrupt status on each iteration. If the task is doing I/O operations, they should be interruptible too—and setting that up can be tricky. In any case, keep in mind that code has to actively check for interrupts; setting an interrupt doesn't necessarily do anything.
Of course, if your task is some simple loop, you can just check the current time at each iteration and give up when a specified timeout has elapsed. A worker thread isn't needed in that case.
I believe you can use multiprocessing and not depend on a 3rd party package:
import multiprocessing
import requests
def call_with_timeout(func, args, kwargs, timeout):
manager = multiprocessing.Manager()
return_dict = manager.dict()
# define a wrapper of `return_dict` to store the result.
def function(return_dict):
return_dict['value'] = func(*args, **kwargs)
p = multiprocessing.Process(target=function, args=(return_dict,))
p.start()
# Force a max. `timeout` or wait for the process to finish
p.join(timeout)
# If thread is still active, it didn't finish: raise TimeoutError
if p.is_alive():
p.terminate()
p.join()
raise TimeoutError
else:
return return_dict['value']
call_with_timeout(requests.get, args=(url,), kwargs={'timeout': 10}, timeout=60)
The timeout passed to kwargs is the timeout to get any response from the server, the argument timeout is the timeout to get the complete response.
I use something like this (you should add code to deal with the various fails):
var response = RunTaskWithTimeout<ReturnType>(
(Func<ReturnType>)delegate { return SomeMethod(someInput); }, 30);
/// <summary>
/// Generic method to run a task on a background thread with a specific timeout, if the task fails,
/// notifies a user
/// </summary>
/// <typeparam name="T">Return type of function</typeparam>
/// <param name="TaskAction">Function delegate for task to perform</param>
/// <param name="TimeoutSeconds">Time to allow before task times out</param>
/// <returns></returns>
private T RunTaskWithTimeout<T>(Func<T> TaskAction, int TimeoutSeconds)
{
Task<T> backgroundTask;
try
{
backgroundTask = Task.Factory.StartNew(TaskAction);
backgroundTask.Wait(new TimeSpan(0, 0, TimeoutSeconds));
}
catch (AggregateException ex)
{
// task failed
var failMessage = ex.Flatten().InnerException.Message);
return default(T);
}
catch (Exception ex)
{
// task failed
var failMessage = ex.Message;
return default(T);
}
if (!backgroundTask.IsCompleted)
{
// task timed out
return default(T);
}
// task succeeded
return backgroundTask.Result;
}
To increase the phpMyAdmin Session Timeout, open config.inc.php in the root phpMyAdmin directory and add this setting (anywhere).
$cfg['LoginCookieValidity'] = <your_new_timeout>;
Where <your_new_timeout> is some number larger than 1800.
Note:
Always keep on mind that a short cookie lifetime is all well and good for the development server. So do not do this on your production server.
As of OkHttp3 you can do this through the Builder like so
client = new OkHttpClient.Builder()
.connectTimeout(10, TimeUnit.SECONDS)
.writeTimeout(10, TimeUnit.SECONDS)
.readTimeout(30, TimeUnit.SECONDS)
.build();
You can also view the recipe here.
For older versions, you simply have to do this
OkHttpClient client = new OkHttpClient();
client.setConnectTimeout(15, TimeUnit.SECONDS); // connect timeout
client.setReadTimeout(15, TimeUnit.SECONDS); // socket timeout
Request request = new Request.Builder().url(url).build();
Response response = client.newCall(request).execute();
Be aware that value set in setReadTimeout is the one used in setSoTimeout on the Socket internally in the OkHttp Connection class.
Not setting any timeout on the OkHttpClient is the equivalent of setting a value of 0 on setConnectTimeout or setReadTimeout and will result in no timeout at all. Description can be found here.
As mentioned by @marceloquinta in the comments setWriteTimeout can also be set.
As of version 2.5.0 read / write / connect timeout values are set to 10 seconds by default as mentioned by @ChristerNordvik. This can be seen here.
Linking to express issue #3330
You may set the timeout either globally for entire server:
var server = app.listen();
server.setTimeout(500000);
or just for specific route:
app.post('/xxx', function (req, res) {
req.setTimeout(500000);
});
An update if one is using Express 4.2 then the timeout middleware has been removed so need to manually add it with
npm install connect-timeout
and in the code it has to be (Edited as per comment, how to include it in the code)
var timeout = require('connect-timeout');
app.use(timeout('100s'));
You could also connect with flag
-o ServerAliveInterval=<secs>so the SSH client will send a null packet to the server each
<secs> seconds, just to keep the connection alive.
In Linux this could be also set globally in /etc/ssh/ssh_config or per-user in ~/.ssh/config.
If you are using office 365 follow this steps:
Hope it helps!
the easiest way to avoid slow retrieval of the remote WSDL when you instantiate your SEI is to not retrieve the WSDL from the remote service endpoint at runtime.
this means that you have to update your local WSDL copy any time the service provider makes an impacting change, but it also means that you have to update your local copy any time the service provider makes an impacting change.
When I generate my client stubs, I tell the JAX-WS runtime to annotate the SEI in such a way that it will read the WSDL from a pre-determined location on the classpath. by default the location is relative to the package location of the Service SEI
<wsimport
sourcedestdir="${dao.helter.dir}/build/generated"
destdir="${dao.helter.dir}/build/bin/generated"
wsdl="${dao.helter.dir}/src/resources/schema/helter/helterHttpServices.wsdl"
wsdlLocation="./wsdl/helterHttpServices.wsdl"
package="com.helter.esp.dao.helter.jaxws"
>
<binding dir="${dao.helter.dir}/src/resources/schema/helter" includes="*.xsd"/>
</wsimport>
<copy todir="${dao.helter.dir}/build/bin/generated/com/helter/esp/dao/helter/jaxws/wsdl">
<fileset dir="${dao.helter.dir}/src/resources/schema/helter" includes="*" />
</copy>
the wsldLocation attribute tells the SEI where is can find the WSDL, and the copy makes sure that the wsdl (and supporting xsd.. etc..) is in the correct location.
since the location is relative to the SEI's package location, we create a new sub-package (directory) called wsdl, and copy all the wsdl artifacts there.
all you have to do at this point is make sure you include all *.wsdl, *.xsd in addition to all *.class when you create your client-stub artifact jar file.
(in case your curious, the @webserviceClient annotation is where this wsdl location is actually set in the java code
@WebServiceClient(name = "httpServices", targetNamespace = "http://www.helter.com/schema/helter/httpServices", wsdlLocation = "./wsdl/helterHttpServices.wsdl")
Was just trying to write something simpler.
#!/usr/bin/python
from subprocess import Popen, PIPE
import datetime
import time
popen = Popen(["/bin/sleep", "10"]);
pid = popen.pid
sttime = time.time();
waittime = 3
print "Start time %s"%(sttime)
while True:
popen.poll();
time.sleep(1)
rcode = popen.returncode
now = time.time();
if [ rcode is None ] and [ now > (sttime + waittime) ] :
print "Killing it now"
popen.kill()
timeout-decorator don't work on windows system as , windows didn't support signal well.
If you use timeout-decorator in windows system you will get the following
AttributeError: module 'signal' has no attribute 'SIGALRM'
Some suggested to use use_signals=False but didn't worked for me.
Author @bitranox created the following package:
pip install https://github.com/bitranox/wrapt-timeout-decorator/archive/master.zip
Code Sample:
import time
from wrapt_timeout_decorator import *
@timeout(5)
def mytest(message):
print(message)
for i in range(1,10):
time.sleep(1)
print('{} seconds have passed'.format(i))
def main():
mytest('starting')
if __name__ == '__main__':
main()
Gives the following exception:
TimeoutError: Function mytest timed out after 5 seconds
If your InputStream is backed by a Socket, you can set a Socket timeout (in milliseconds) using setSoTimeout. If the read() call doesn't unblock within the timeout specified, it will throw a SocketTimeoutException.
Just make sure that you call setSoTimeout on the Socket before making the read() call.
The XMLHttpRequest.timeout property represents a number of milliseconds a request can take before automatically being terminated. The default value is 0, which means there is no timeout. An important note the timeout shouldn't be used for synchronous XMLHttpRequests requests, used in a document environment or it will throw an InvalidAccessError exception. You may not use a timeout for synchronous requests with an owning window.
IE10 and 11 do not support synchronous requests, with support being phased out in other browsers too. This is due to detrimental effects resulting from making them.
More info can be found here.
I managed to find network.http.connect.timeout for much older versions of Mozilla:
This preference was one of several added to allow low-level tweaking of the HTTP networking code. After a portion of the same code was significantly rewritten in 2001, the preference ceased to have any effect (as noted in all.js as early as September 2001).
Currently, the timeout is determined by the system-level connection establishment timeout. Adding a way to configure this value is considered low-priority.
It would seem that network.http.connect.timeout hasn't done anything for some time.
I also saw references to network.http.request.timeout, so I did a Google search. The results include lots of links to people recommending that others include it in about:config in what appears to be a mistaken belief that it actually does something, since the same search turns up this about:config entries article:
Pref removed (unused). Previously: HTTP-specific network timeout. Default value is 120.
The same page includes additional information about network.http.connect.timeout:
Pref removed (unused). Previously: determines how long to wait for a response until registering a timeout. Default value is 30.
Disclaimer: The information on the MozillaZine Knowledge Base may be incorrect, incomplete or out-of-date.
Here are my 2 cents. Nothing new, but some explanations, improvements and newer code.
By default, RestTemplate has infinite timeout.
There are two kinds of timeouts: connection timeout and read time out. For instance, I could connect to the server but I could not read data. The application was hanging and you have no clue what's going on.
I am going to use annotations, which these days are preferred over XML.
@Configuration
public class AppConfig {
@Bean
public RestTemplate restTemplate() {
var factory = new SimpleClientHttpRequestFactory();
factory.setConnectTimeout(3000);
factory.setReadTimeout(3000);
return new RestTemplate(factory);
}
}
Here we use SimpleClientHttpRequestFactory to set the connection and read time outs.
It is then passed to the constructor of RestTemplate.
@Configuration
public class AppConfig {
@Bean
public RestTemplate restTemplate(RestTemplateBuilder builder) {
return builder
.setConnectTimeout(Duration.ofMillis(3000))
.setReadTimeout(Duration.ofMillis(3000))
.build();
}
}
In the second solution, we use the RestTemplateBuilder. Also notice the parameters of the two methods: they take Duration. The overloaded methods that take directly milliseconds are now deprecated.
Edit Tested with Spring Boot 2.1.0 and Java 11.
If you have just one query I don't know how to set timeout on T-SQL level.
However if you have a few queries (i.e. collecting data into temporary tables) inside stored procedure you can just control time of execution with GETDATE(), DATEDIFF() and a few INT variables storing time of execution of each part.
You can't run the request from a browser, it will timeout waiting for the server running the CURL request to respond. The browser is probably timing out in 1-2 minutes, the default network timeout.
You need to run it from the command line/terminal.
Apply the (soft) shadow on the view's layer, like this:
UILabel *label = [[UIabel alloc] init];
label.layer.shadowColor = [[UIColor whiteColor] CGColor];
label.layer.shadowOpacity = 1.0;
This worked for me.
Swift 3:
let time1 = 8.23
let time2 = 3.42
// Delay 2 seconds
DispatchQueue.main.asyncAfter(deadline: .now() + 2.0) {
print("Sum of times: \(time1 + time2)")
}
Objective-C:
CGFloat time1 = 3.49;
CGFloat time2 = 8.13;
// Delay 2 seconds
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(2.0 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
CGFloat newTime = time1 + time2;
NSLog(@"New time: %f", newTime);
});
Should a dictionary like:
{'red': '0.500', 'yellow': '0.250, 'blue': '0.125'}
be required out of a dataframe like:
a b
0 red 0.500
1 yellow 0.250
2 blue 0.125
simplest way would be to do:
dict(df.values)
working snippet below:
import pandas as pd
df = pd.DataFrame({'a': ['red', 'yellow', 'blue'], 'b': [0.5, 0.25, 0.125]})
dict(df.values)
Keep in mind that unless you're writing your own data structure (e.g. linked list in C), it can depend dramatically on the implementation of data structures in your language/framework of choice. As an example, take a look at the benchmarks of Apple's CFArray over at Ridiculous Fish. In this case, the data type, a CFArray from Apple's CoreFoundation framework, actually changes data structures depending on how many objects are actually in the array - changing from linear time to constant time at around 30,000 objects.
This is actually one of the beautiful things about object-oriented programming - you don't need to know how it works, just that it works, and the 'how it works' can change depending on requirements.
I know the question is about GCC, but for people looking for how to do this in other and/or multiple compilers…
You might want to take a look at Hedley, which is a public-domain single C/C++ header I wrote which does a lot of this stuff for you. I'll put a quick section about how to use Hedley for all this at the end of this post.
#pragma warning (disable: …) has equivalents in most compilers:
#pragma warning(disable:4996)#pragma GCC diagnostic ignored "-W…" where the ellipsis is the name of the warning; e.g., #pragma GCC diagnostic ignored "-Wdeprecated-declarations.#pragma clang diagnostic ignored "-W…". The syntax is basically the same as GCC's, and many of the warning names are the same (though many aren't).#pragma warning(disable:1478 1786).diag_suppress pragma: #pragma diag_suppress 1215,1444. Note that all warning numbers increased by one in 20.7 (the first NV HPC release).diag_suppress pragma with the same syntax (but different warning numbers!) as PGI: pragma diag_suppress 1291,1718error_messages pragma. Annoyingly, the warnings are different for the C and C++ compilers. Both of these disable basically the same warnings:
#pragma error_messages(off,E_DEPRECATED_ATT,E_DEPRECATED_ATT_MESS)#pragma error_messages(off,symdeprecated,symdeprecated2)diag_suppress like PGI and TI, but the syntax is different. Some of the warning numbers are the same, but I others have diverged: #pragma diag_suppress=Pe1444,Pe1215#pragma warn(disable:2241)For most compilers it is often a good idea to check the compiler version before trying to disable it, otherwise you'll just end up triggering another warning. For example, GCC 7 added support for the -Wimplicit-fallthrough warning, so if you care about GCC before 7 you should do something like
#if defined(__GNUC__) && (__GNUC__ >= 7)
# pragma GCC diagnostic ignored "-Wimplicit-fallthrough"
#endif
For clang and compilers based on clang such as newer versions of XL C/C++ and armclang, you can check to see if the compiler knows about a particular warning using the __has_warning() macro.
#if __has_warning("-Wimplicit-fallthrough")
# pragma clang diagnostic ignored "-Wimplicit-fallthrough"
#endif
Of course you also have to check to see if the __has_warning() macro exists:
#if defined(__has_warning)
# if __has_warning("-Wimplicit-fallthrough")
# pragma clang diagnostic ignored "-Wimplicit-fallthrough"
# endif
#endif
You may be tempted to do something like
#if !defined(__has_warning)
# define __has_warning(warning)
#endif
So you can use __has_warning a bit more easily. Clang even suggests something similar for the __has_builtin() macro in their manual. Do not do this. Other code may check for __has_warning and fall back on checking compiler versions if it doesn't exist, and if you define __has_warning you'll break their code. The right way to do this is to create a macro in your namespace. For example:
#if defined(__has_warning)
# define MY_HAS_WARNING(warning) __has_warning(warning)
#else
# define MY_HAS_WARNING(warning) (0)
#endif
Then you can do stuff like
#if MY_HAS_WARNING(warning)
# pragma clang diagnostic ignored "-Wimplicit-fallthrough"
#elif defined(__GNUC__) && (__GNUC__ >= 7)
# pragma GCC diagnostic ignored "-Wimplicit-fallthrough"
#endif
Many compilers also support a way to push and pop warnings onto a stack. For example, this will disable a warning on GCC for one line of code, then return it to its previous state:
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wdeprecated"
call_deprecated_function();
#pragma GCC diagnostic pop
Of course there isn't a lot of agreement across compilers about the syntax:
#pragma GCC diagnostic push / #pragma GCC diagnostic pop#pragma clang diagnostic push / #pragma diagnostic pop#pragma warning(push) / #pragma warning(pop)#pragma warning(push) / #pragma warning(pop)#pragma push / #pragma pop#pragma diag_push / #pragma diag_pop#pragma warning(push) / #pragma warning(pop)If memory serves, for some very old versions of GCC (like 3.x, IIRC) the push/pop pragmas had to be outside of the function.
For most compilers it's possible to hide the logic behind macros using _Pragma, which was introduced in C99. Even in non-C99 mode, most compilers support _Pragma; the big exception is MSVC, which has its own __pragma keyword with a different syntax. The standard _Pragma takes a string, Microsoft's version doesn't:
#if defined(_MSC_VER)
# define PRAGMA_FOO __pragma(foo)
#else
# define PRAGMA_FOO _Pragma("foo")
#endif
PRAGMA_FOO
Is roughly equivalent, once preprocessed, to
#pragma foo
This lets us create macros so we can write code like
MY_DIAGNOSTIC_PUSH
MY_DIAGNOSTIC_DISABLE_DEPRECATED
call_deprecated_function();
MY_DIAGNOSTIC_POP
And hide away all the ugly version checks in the macro definitions.
Now that you understand the mechanics of how to do stuff like this portably while keeping your code clean, you understand what one of my projects, Hedley does. Instead of digging through tons of documentation and/or installing as many versions of as many compilers as you can to test with, you can just include Hedley (it is a single public domain C/C++ header) and be done with it. For example:
#include "hedley.h"
HEDLEY_DIAGNOSTIC_PUSH
HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED
call_deprecated();
HEDLEY_DIAGNOSTIC_POP
Will disable the warning about calling a deprecated function on GCC, clang, ICC, PGI, MSVC, TI, IAR, ODS, Pelles, and possibly others (I probably won't bother updating this answer as I update Hedley). And, on compilers which aren't known to work, the macros will be preprocessed away to nothing, so your code will continue to work with any compiler. Of course HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED isn't the only warning Hedley knows about, nor is disabling warnings all Hedley can do, but hopefully you get the idea.
Try this, It supports multi file uploading,
$('#multi_file_upload').change(function(e) {
var file_id = e.target.id;
var file_name_arr = new Array();
var process_path = site_url + 'public/uploads/';
for (i = 0; i < $("#" + file_id).prop("files").length; i++) {
var form_data = new FormData();
var file_data = $("#" + file_id).prop("files")[i];
form_data.append("file_name", file_data);
if (check_multifile_logo($("#" + file_id).prop("files")[i]['name'])) {
$.ajax({
//url : site_url + "inc/upload_image.php?width=96&height=60&show_small=1",
url: site_url + "inc/upload_contact_info.php",
cache: false,
contentType: false,
processData: false,
async: false,
data: form_data,
type: 'post',
success: function(data) {
// display image
}
});
} else {
$("#" + html_div).html('');
alert('We only accept JPG, JPEG, PNG, GIF and BMP files');
}
}
});
function check_multifile_logo(file) {
var extension = file.substr((file.lastIndexOf('.') + 1))
if (extension === 'jpg' || extension === 'jpeg' || extension === 'gif' || extension === 'png' || extension === 'bmp') {
return true;
} else {
return false;
}
}
Here #multi_file_upload is the ID of image upload field.
I appreciate this might not be the answer to resolving on 3.4 but I tried a huge variety of things to fix this on 3.4 and thought this might be useful if someone is time pressed or doesn't have the know-how to correct it (in my case, work demands).
With exactly the same setup, I found that my installation problems only happened with Python 3.4. When I changed to 2.7, all my issues seemed to be resolved.
We have a rather overzealous security setup though so I'm going to try the same on my home version (still 3.4) and see if I have any more joy. My inclination is that my VS version has somehow been restricted and the answers above should help. If I find anything more tonight I'll add further detail.
This is my first reply, not the most technical I'm afraid!
BehaviorSubject keeps in memory the last value that was emitted by the observable. A regular Subject doesn't.
BehaviorSubject is like ReplaySubject with a buffer size of 1.
LastLogon is the last time that the user logged into whichever domain controller you happen to have been load balanced to at the moment that you ran the GET-ADUser cmdlet, and is not replicated across the domain. You really should use LastLogonTimestamp if you want the time the last user logged in to any domain controller in your domain.
You can use the finish command.
finish: Continue running until just after function in the selected stack frame returns. Print the returned value (if any). This command can be abbreviated asfin.
(See 5.2 Continuing and Stepping.)
Simplified prior suggestions and providing code for .NET Web Forms developers.
This will accept both relative ("~/") and absolute urls in the file path to the resource.
Put in a static extensions class file, the following:
public static string VersionedContent(this HttpContext httpContext, string virtualFilePath)
{
var physicalFilePath = httpContext.Server.MapPath(virtualFilePath);
if (httpContext.Cache[physicalFilePath] == null)
{
httpContext.Cache[physicalFilePath] = ((Page)httpContext.CurrentHandler).ResolveUrl(virtualFilePath) + (virtualFilePath.Contains("?") ? "&" : "?") + "v=" + File.GetLastWriteTime(physicalFilePath).ToString("yyyyMMddHHmmss");
}
return (string)httpContext.Cache[physicalFilePath];
}
And then call it in your Master Page as such:
<link type="text/css" rel="stylesheet" href="<%= Context.VersionedContent("~/styles/mystyle.css") %>" />
<script type="text/javascript" src="<%= Context.VersionedContent("~/scripts/myjavascript.js") %>"></script>
Although probably not the best method you could add:
#div1 {
...
font-size:0;
}
How about this:
from pandas import *
idx = Int64Index([171, 174, 173])
df = DataFrame(index = idx, data =([1,2,3]))
print df
It gives me:
0
171 1
174 2
173 3
Is this what you are looking for?
In order to add an EventListener to an element in angular 2+, we can use the method listen of the Renderer2 service (Renderer is deprecated, so use Renderer2):
listen(target: 'window'|'document'|'body'|any, eventName: string, callback: (event: any) => boolean | void): () => void
Example:
export class ListenDemo implements AfterViewInit {
@ViewChild('testElement')
private testElement: ElementRef;
globalInstance: any;
constructor(private renderer: Renderer2) {
}
ngAfterViewInit() {
this.globalInstance = this.renderer.listen(this.testElement.nativeElement, 'click', () => {
this.renderer.setStyle(this.testElement.nativeElement, 'color', 'green');
});
}
}
Note:
When you use this method to add an event listener to an element in the dom, you should remove this event listener when the component is destroyed
You can do that this way:
ngOnDestroy() {
this.globalInstance();
}
The way of use of ElementRef in this method should not expose your angular application to a security risk. for more on this referrer to ElementRef security risk angular 2
i'd rather go to menu source em click on "Cleanup Document"
From .Net 3.5 you can use LINQ extension method that (sometimes) makes code flow a bit better.
Usage looks like this:
using System.Linq;
// ...
public void My()
{
var myArray = new[] { "abc", "123", "zyx" };
List<string> myList = myArray.ToList();
}
PS. There's also ToArray() method that works in other way.
You can wrap jQuery calls inside normal JavaScript code. So, for example:
$(document).ready(function() {
if (someCondition && someOtherCondition) {
// Make some jQuery call.
}
});
DocumentFilter ? It gives you the ability to manipulate.
[ http://www.java2s.com/Tutorial/Java/0240__Swing/FormatJTextFieldstexttouppercase.htm ]
Sorry. J am using Jython (Python in Java) - but easy to understand
# python style
# upper chars [ text.upper() ]
class myComboBoxEditorDocumentFilter( DocumentFilter ):
def __init__(self,jtext):
self._jtext = jtext
def insertString(self,FilterBypass_fb, offset, text, AttributeSet_attrs):
txt = self._jtext.getText()
print('DocumentFilter-insertString:',offset,text,'old:',txt)
FilterBypass_fb.insertString(offset, text.upper(), AttributeSet_attrs)
def replace(self,FilterBypass_fb, offset, length, text, AttributeSet_attrs):
txt = self._jtext.getText()
print('DocumentFilter-replace:',offset, length, text,'old:',txt)
FilterBypass_fb.replace(offset, length, text.upper(), AttributeSet_attrs)
def remove(self,FilterBypass_fb, offset, length):
txt = self._jtext.getText()
print('DocumentFilter-remove:',offset, length, 'old:',txt)
FilterBypass_fb.remove(offset, length)
// (java style ~example for ComboBox-jTextField)
cb = new ComboBox();
cb.setEditable( true );
cbEditor = cb.getEditor();
cbEditorComp = cbEditor.getEditorComponent();
cbEditorComp.getDocument().setDocumentFilter(new myComboBoxEditorDocumentFilter(cbEditorComp));
I want to point out that setting a SimpleDateFormat like described in the other answer only works for a java.util.Date which I assume is meant in the question.
But for java.sql.Date the formatter does not work.
In my case it was not very obvious why the formatter did not work because in the model which should be serialized the field was in fact a java.utl.Date but the actual object ended up beeing a java.sql.Date.
This is possible because
public class java.sql extends java.util.Date
So this is actually valid
java.util.Date date = new java.sql.Date(1542381115815L);
So if you are wondering why your Date field is not correctly formatted make sure that the object is really a java.util.Date.
Here is also mentioned why handling java.sql.Date will not be added.
This would then be breaking change, and I don't think that is warranted. If we were starting from scratch I would agree with the change, but as things are not so much.
You're comparing the object references, and they are not the same. You need to compare the array contents.
An option is iterating through the array elements and call Equals() for each element. Remember that you need to override the Equals() method for the array elements, if they are not the same object reference.
An alternative is using this generic method to compare two generic arrays:
static bool ArraysEqual<T>(T[] a1, T[] a2)
{
if (ReferenceEquals(a1, a2))
return true;
if (a1 == null || a2 == null)
return false;
if (a1.Length != a2.Length)
return false;
var comparer = EqualityComparer<T>.Default;
for (int i = 0; i < a1.Length; i++)
{
if (!comparer.Equals(a1[i], a2[i])) return false;
}
return true;
}
Or use SequenceEqual if Linq is available for you (.NET Framework >= 3.5)
Pros:
Clustered indexes work great for ranges (e.g. select * from my_table where my_key between @min and @max)
In some conditions, the DBMS will not have to do work to sort if you use an orderby statement.
Cons:
Clustered indexes are can slow down inserts because the physical layouts of the records have to be modified as records are put in if the new keys are not in sequential order.
You can also use a special container which will contain only the command you need: Vim. I chose python-vim. It assumes that the data you want to edit are in a data container built with the following Dockerfile:
FROM debian:jessie
ENV MY_USER_PASS my_user_pass
RUN groupadd --gid 1001 my_user
RUN useradd -ms /bin/bash --home /home/my_user \
-p $(echo "print crypt("${MY_USER_PASS:-password}", "salt")" | perl) \
--uid 1001 --gid 1001 my_user
ADD src /home/my_user/src
RUN chown -R my_user:my_user /home/my_user/src
RUN chmod u+x /home/my_user/src
CMD ["true"]
You will be able to edit your data by mounting a Docker volume (src_volume) which will be shared by your data container (src_data) and the python-vim container.
docker volume create --name src_volume
docker build -t src_data .
docker run -d -v src_volume:/home/my_user/src --name src_data_1 src_data
docker run --rm -it -v src_volume:/src fedeg/python-vim:latest
That way, you do not change your containers. You just use a special container for this work.
If you want only those commits which are done by you in a particular branch, use the below command.
git log branch_name --author='Dyaniyal'
This error comes even if you miss "-" by mistake before the word jar
Wrong command
java jar test.jar
Correct command
java -jar test.jar
Functional and immutable approach, without .filter and without creating more objects than needed
Object.keys(obj).reduce((acc, key) => (obj[key] === undefined ? acc : {...acc, [key]: obj[key]}), {})
windowSoftInputMode will either pan or resize your activity layout. One thing that you can do is to attach an onFocusChanged listener to your EditText and when the user selects/taps the EditText then you hide or move your navigation buttons out of the screen. When the EditText loses focus then you can put the navigation buttons back at the bottom of the activity.
The biggest difference is their functionality. push_back always puts a new element at the end of the vector and insert allows you to select new element's position. This impacts the performance. vector elements are moved in the memory only when it's necessary to increase it's length because too little memory was allocated for it. On the other hand insert forces to move all elements after the selected position of a new element. You simply have to make a place for it. This is why insert might often be less efficient than push_back.
This can also be done with the Image class of the PIL library:
from PIL import Image
import numpy as np
im_frame = Image.open(path_to_file + 'file.png')
np_frame = np.array(im_frame.getdata())
Note: The .getdata() might not be needed - np.array(im_frame) should also work
I usually add to index changes I don't want to stash and then stash with --keep-index option.
git add app/controllers/cart_controller.php
git stash --keep-index
git reset
Last step is optional, but usually you want it. It removes changes from index.
Warning
As noted in the comments, this puts everything into the stash, both staged and unstaged. The --keep-index just leaves the index alone after the stash is done. This can cause merge conflicts when you later pop the stash.
Breadth first search
Queue<TreeNode> queue = new LinkedList<BinaryTree.TreeNode>() ;
public void breadth(TreeNode root) {
if (root == null)
return;
queue.clear();
queue.add(root);
while(!queue.isEmpty()){
TreeNode node = queue.remove();
System.out.print(node.element + " ");
if(node.left != null) queue.add(node.left);
if(node.right != null) queue.add(node.right);
}
}
This works:
package main
import (
"fmt"
"os"
"os/signal"
"syscall"
"time" // or "runtime"
)
func cleanup() {
fmt.Println("cleanup")
}
func main() {
c := make(chan os.Signal)
signal.Notify(c, os.Interrupt, syscall.SIGTERM)
go func() {
<-c
cleanup()
os.Exit(1)
}()
for {
fmt.Println("sleeping...")
time.Sleep(10 * time.Second) // or runtime.Gosched() or similar per @misterbee
}
}
Simply get the current item from pager and then ask your adapter to the fragment of that position.
int currentItem = viewPager.getCurrentItem();
Fragment item = mPagerAdapter.getItem(currentItem);
if (null != item && item.isVisible()) {
//do whatever want to do with fragment after doing type checking
return;
}
Faced the same problem in Android Studio 3.1.3
Just go to style.xml file
and replace Theme name
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
with
<style name="AppTheme" parent="Base.Theme.AppCompat.Light.DarkActionBar">
Then clean and rebuild the project.This will solve the error.
Here is something to get you started
$('form') // match your correct form
.find('input[type!=submit], input[type!=reset]') // don't reset submit or reset
.val(''); // set their value to blank
Of course, if you have checkboxes/radio buttons, you'll need to modify this to include them as well and set .attr({'checked': false});
edit
Paolo's answer is more concise. My answer is more wordy because I did not know about the :input selector, nor did I think about simply removing the checked attribute.
Use of "and" in conditional. I often use this when importing in Jupyter Notebook:
def find_local_py_scripts():
import os # does not cost if already imported
for entry in os.scandir('.'):
# find files ending with .py
if entry.is_file() and entry.name.endswith(".py") :
print("- ", entry.name)
find_local_py_scripts()
- googlenet_custom_layers.py
- GoogLeNet_Inception_v1.py
Technically, you could, but it would take a lot of work to get all browsers to print out the page exactly as it is displayed on screen. Also, most browsers force the URL, print date and page numbering on the print-out, which is not always desired. This cannot be altered or disabled.
Instead, I would advise to create a PDF based on the contents on screen and serve the PDF for downloading and/or printing. Although most available PDF libraries are paid, there are a few free alternatives available for creating basic PDFs.
When you want to destroy a session completely, you need to do more then just
session_destroy();
First, you should unset any session variables. Then you should destroy the session followed by closing the write of the session. This can be done by the following:
<?php
session_start();
unset($_SESSION);
session_destroy();
session_write_close();
header('Location: /');
die;
?>
The reason you want have a separate script for a logout is so that you do not accidently execute it on the page. So make a link to your logout script, then the header will redirect to the root of your site.
Edit:
You need to remove the () from your exit code near the top of your script. it should just be
exit;
Adding to the above-accepted answer so that it helps those who are using tensorflow 2.0
import tensorflow as tf
# some data
c1 = tf.constant([[1, 1, 1], [2, 2, 2]], dtype=tf.float32)
c2 = tf.constant([[2, 2, 2], [3, 3, 3]], dtype=tf.float32)
c3 = tf.constant([[3, 3, 3], [4, 4, 4]], dtype=tf.float32)
# bake layers x1, x2, x3
x1 = tf.keras.layers.Dense(10)(c1)
x2 = tf.keras.layers.Dense(10)(c2)
x3 = tf.keras.layers.Dense(10)(c3)
# merged layer y1
y1 = tf.keras.layers.Concatenate(axis=1)([x1, x2])
# merged layer y2
y2 = tf.keras.layers.Concatenate(axis=1)([y1, x3])
# print info
print("-"*30)
print("x1", x1.shape, "x2", x2.shape, "x3", x3.shape)
print("y1", y1.shape)
print("y2", y2.shape)
print("-"*30)
Result:
------------------------------
x1 (2, 10) x2 (2, 10) x3 (2, 10)
y1 (2, 20)
y2 (2, 30)
------------------------------
One nice thing about logging.exception that SiggyF's answer doesn't show is that you can pass in an arbitrary message, and logging will still show the full traceback with all the exception details:
import logging
try:
1/0
except ZeroDivisionError:
logging.exception("Deliberate divide by zero traceback")
With the default (in recent versions) logging behaviour of just printing errors to sys.stderr, it looks like this:
>>> import logging
>>> try:
... 1/0
... except ZeroDivisionError:
... logging.exception("Deliberate divide by zero traceback")
...
ERROR:root:Deliberate divide by zero traceback
Traceback (most recent call last):
File "<stdin>", line 2, in <module>
ZeroDivisionError: integer division or modulo by zero
var ret = "data-123".replace('data-','');_x000D_
console.log(ret); //prints: 123For all occurrences to be discarded use:
var ret = "data-123".replace(/data-/g,'');
PS: The replace function returns a new string and leaves the original string unchanged, so use the function return value after the replace() call.
In certain cases, it might be necessary to restrict the display of a webpage to a document mode supported by an earlier version of Internet Explorer. You can do this by serving the page with an x-ua-compatible header. For more info, see Specifying legacy document modes.
- https://msdn.microsoft.com/library/cc288325
Thus this tag is used to future proof the webpage, such that the older / compatible engine is used to render it the same way as intended by the creator.
Make sure that you have checked it to work properly with the IE version you specify.
On this page you can test the performance of each method yourself :)
http://jsperf.com/cast-to-string/2
here, on all machines and browsers, ' "" + str ' is the fastest one, (String)str is the slowest
you can get the json string as a param of your ActionResult and afterwards serialize it using JSON.Net
HERE an example is being shown
in order to receive it in the serialized form as a param of the controller action you must either write a custom model binder or a Action filter (OnActionExecuting) so that the json string is serialized into the model of your liking and is available inside the controller body for use.
HERE is an implementation using the dynamic object
var result = list.GroupBy(x => x.Category).Select(x => x.First())
I modified Zack's answer since I wanted spaces and interpolation but not newlines and used:
%W[
It's a nice day "#{name}"
for a walk!
].join(' ')
where name = 'fred' this produces It's a nice day "fred" for a walk!
The args of print_the_arguments is arguments, so you should use:
struct arg_struct *args = (struct arg_struct *)arguments.
input[type="text"]{
@include transition(all 0.30s ease-in-out);
outline: none;
padding: 3px 0px 3px 3px;
margin: 5px 1px 3px 0px;
border: 1px solid #DDDDDD;
}
input[type="text"]:focus{
@include box-shadow(0 0 5px rgba(81, 203, 238, 1));
-webkit-box-shadow: 0px 0px 5px #007eff;
-moz-box-shadow: 0px 0px 5px #007eff;
box-shadow: 0px 0px 5px #007eff;
}
You could use VirtualPathRoot property from HttpRequestContext (request.GetRequestContext().VirtualPathRoot)
Here is a function that times execution of any piece of PHP code, much like Python's timeit module does: https://gist.github.com/flaviovs/35aab0e85852e548a60a
How to use it:
include('timeit.php');
const SOME_CODE = '
strlen("foo bar");
';
$t = timeit(SOME_CODE);
print "$t[0] loops; $t[2] per loop\n";
Result:
$ php x.php
100000 loops; 18.08us per loop
Disclaimer: I am the author of this Gist
EDIT: timeit is now a separate, self-contained project at https://github.com/flaviovs/timeit
-O is the option to specify the path of the file you want to download to:
wget <uri> -O /path/to/file.ext
-P is prefix where it will download the file in the directory:
wget <uri> -P /path/to/folder
Also worth noting window.scrollBy(dx,dy) (ref)
And here's an example of the customizer implemented in Groovy:
just add on table
style="overflow-x:auto;"
<table border=1 id="qandatbl" align="center" style="overflow-x:auto;">_x000D_
<tr>_x000D_
<th class="col1">Question No</th>_x000D_
<th class="col2">Option Type</th>_x000D_
<th class="col1">Duration</th>_x000D_
</tr>_x000D_
_x000D_
<tbody>_x000D_
<tr>_x000D_
<td class='qid'></td>_x000D_
<td class="options"></td>_x000D_
<td class="duration"></td>_x000D_
</tr>_x000D_
</tbody>_x000D_
</table>style="overflow-x:auto;"`
if (value == "") {
// it is empty
}
Use wmic computersystem get TotalPhysicalMemory. E.g.:
C:\>wmic computersystem get TotalPhysicalMemory
TotalPhysicalMemory
4294500352
I encount this while I was calculating np.var(np.array([])). np.var will divide size of the array which is zero in this case.
As per @Randal comment, you can use perl, e.g.
$ printf 5a5a5a5a | perl -lne 'print pack "H*", $_'
ZZZZ
and other way round:
$ printf ZZZZ | perl -lne 'print unpack "H*", $_'
5a5a5a5a
Another example with file:
$ printf 5a5a5a5a | perl -lne 'print pack "H*", $_' > file.bin
$ perl -lne 'print unpack "H*", $_' < file.bin
5a5a5a5a
This is the Simple method, Use ParseExact
CultureInfo provider = CultureInfo.InvariantCulture;
DateTime result;
String dateString = "Sun 08 Jun 2013 8:30 AM -06:00";
String format = "ddd dd MMM yyyy h:mm tt zzz";
result = DateTime.ParseExact(dateString, format, provider);
This should work for you.
I had the same problem, and didn´t want to rewrite the code, so I wrote a function to modify the code and create the inline declarated events:
function compile(qSel){
var matches = [];
var match = null;
var c = 0;
var html = $(qSel).html();
var pattern = /(<(.*?)on([a-zA-Z]+)\s*=\s*('|")(.*)('|")(.*?))(>)/mg;
while (match = pattern.exec(html)) {
var arr = [];
for (i in match) {
if (!isNaN(i)) {
arr.push(match[i]);
}
}
matches.push(arr);
}
var items_with_events = [];
var compiledHtml = html;
for ( var i in matches ){
var item_with_event = {
custom_id : "my_app_identifier_"+i,
code : matches[i][5],
on : matches[i][3],
};
items_with_events.push(item_with_event);
compiledHtml = compiledHtml.replace(/(<(.*?)on([a-zA-Z]+)\s*=\s*('|")(.*)('|")(.*?))(>)/m, "<$2 custom_id='"+item_with_event.custom_id+"' $7 $8");
}
$(qSel).html(compiledHtml);
for ( var i in items_with_events ){
$("[custom_id='"+items_with_events[i].custom_id+"']").bind(items_with_events[i].on, function(){
eval(items_with_events[i].code);
});
}
}
$(document).ready(function(){
compile('#content');
})
This should remove all inline events from the selected node, and recreate them with jquery instead.
Edit : After Android Studios 1.5 android support Vector Asset Studio.
Follow this, which says:
To start Vector Asset Studio:
- In Android Studio, open an Android app project.
- In the Project window, select the Android view.
- Right-click the res folder and select New > Vector Asset.
Go to Settings > Plugin > Browse Repository > Search Android Drawable Import
This plugin consists of 4 main features.
How to Use Material Icons Drawable Import : (Android Studio 1.2)
In general for AnInterface and anInstance of any class:
AnInterface.class.isAssignableFrom(anInstance.getClass());
library(matrixStats)
> data <- rbind(c("M", "F", "M"), c("Student", "Analyst", "Analyst"))
> rowCounts(data, value = 'M') # output = 2 0
> rowCounts(data, value = 'F') # output = 1 0
If you have multiple windows open and only want to close the one that was closed use JFrame.dispose().
If you want to close all windows and terminate the application use System.exit()
The best way to bring in an Eclipse/ADT project is to import it directly into Android Studio. At first GO to Eclipse project & delete the project.properties file.
After that, open the Android studio Tool & import Eclipse project(Eclipse ADT, Gradle etc).
My requirement was a bit different. I often work with Comma Delimited and Tab Delimited ASCII files where a single line is a single record of data. And they're really big, so I need to split them into manageable parts (whilst preserving the header row).
So, I reverted back to my classic VBScript method and bashed together a small .vbs script that can be run on any Windows computer (it gets automatically executed by the WScript.exe script host engine on Window).
The benefit of this method is that it uses Text Streams, so the underlying data isn't loaded into memory (or, at least, not all at once). The result is that it's exceptionally fast and it doesn't really need much memory to run. The test file I just split using this script on my i7 was about 1 GB in file size, had about 12 million lines of test and made 25 part files (each with about 500k lines each) – the processing took about 2 minutes and it didn’t go over 3 MB memory used at any point.
The caveat here is that it relies on the text file having "lines" (meaning each record is delimited with a CRLF) as the Text Stream object uses the "ReadLine" function to process a single line at a time. But hey, if you're working with TSV or CSV files, it's perfect.
Option Explicit
Private Const INPUT_TEXT_FILE = "c:\bigtextfile.txt" 'The full path to the big file
Private Const REPEAT_HEADER_ROW = True 'Set to True to duplicate the header row in each part file
Private Const LINES_PER_PART = 500000 'The number of lines per part file
Dim oFileSystem, oInputFile, oOutputFile, iOutputFile, iLineCounter, sHeaderLine, sLine, sFileExt, sStart
sStart = Now()
sFileExt = Right(INPUT_TEXT_FILE,Len(INPUT_TEXT_FILE)-InstrRev(INPUT_TEXT_FILE,".")+1)
iLineCounter = 0
iOutputFile = 1
Set oFileSystem = CreateObject("Scripting.FileSystemObject")
Set oInputFile = oFileSystem.OpenTextFile(INPUT_TEXT_FILE, 1, False)
Set oOutputFile = oFileSystem.OpenTextFile(Replace(INPUT_TEXT_FILE, sFileExt, "_" & iOutputFile & sFileExt), 2, True)
If REPEAT_HEADER_ROW Then
iLineCounter = 1
sHeaderLine = oInputFile.ReadLine()
Call oOutputFile.WriteLine(sHeaderLine)
End If
Do While Not oInputFile.AtEndOfStream
sLine = oInputFile.ReadLine()
Call oOutputFile.WriteLine(sLine)
iLineCounter = iLineCounter + 1
If iLineCounter Mod LINES_PER_PART = 0 Then
iOutputFile = iOutputFile + 1
Call oOutputFile.Close()
Set oOutputFile = oFileSystem.OpenTextFile(Replace(INPUT_TEXT_FILE, sFileExt, "_" & iOutputFile & sFileExt), 2, True)
If REPEAT_HEADER_ROW Then
Call oOutputFile.WriteLine(sHeaderLine)
End If
End If
Loop
Call oInputFile.Close()
Call oOutputFile.Close()
Set oFileSystem = Nothing
Call MsgBox("Done" & vbCrLf & "Lines Processed:" & iLineCounter & vbCrLf & "Part Files: " & iOutputFile & vbCrLf & "Start Time: " & sStart & vbCrLf & "Finish Time: " & Now())
Marknote is a nice lightweight cross-browser JavaScript XML parser. It's object-oriented and it's got plenty of examples, plus the API is documented. It's fairly new, but it has worked nicely in one of my projects so far. One thing I like about it is that it will read XML directly from strings or URLs and you can also use it to convert the XML into JSON.
Here's an example of what you can do with Marknote:
var str = '<books>' +
' <book title="A Tale of Two Cities"/>' +
' <book title="1984"/>' +
'</books>';
var parser = new marknote.Parser();
var doc = parser.parse(str);
var bookEls = doc.getRootElement().getChildElements();
for (var i=0; i<bookEls.length; i++) {
var bookEl = bookEls[i];
// alerts "Element name is 'book' and book title is '...'"
alert("Element name is '" + bookEl.getName() +
"' and book title is '" +
bookEl.getAttributeValue("title") + "'"
);
}
Another solution without the submit button:
HTML
<form>
<input class="submit_on_enter" type="text" name="q" placeholder="Search...">
</form>
jQuery
$(document).ready(function() {
$('.submit_on_enter').keydown(function(event) {
// enter has keyCode = 13, change it if you want to use another button
if (event.keyCode == 13) {
this.form.submit();
return false;
}
});
});
In WSDL, if you look at the Binding section, you will clearly see that soap binding is explicitly mentioned if the service uses soap 1.2. refer the below sample.
<binding name="EmployeeServiceImplPortBinding" type="tns:EmployeeServiceImpl">
<soap12:binding transport="http://schemas.xmlsoap.org/soap/http" style="document"/>
<operation name="findEmployeeById">
<soap12:operation soapAction=""/>
<input><soap12:body use="literal"/></input>
<output><soap12:body use="literal"/></output>
</operation><operation name="create">
<soap12:operation soapAction=""/>
<input><soap12:body use="literal"/></input>
<output><soap12:body use="literal"/></output>
</operation>
</binding>
if the web service use soap 1.1, it will not explicitly define any soap version in the WSDL file under binding section. refer the below sample.
<binding name="EmployeeServiceImplPortBinding" type="tns:EmployeeServiceImpl">
<soap:binding transport="http://schemas.xmlsoap.org/soap/http" style="rpc"/>
<operation name="findEmployeeById">
<soap:operation soapAction=""/>
<input><soap:body use="literal" namespace="http://jaxb.ws.jax.samples.chathurangaonline.com/"/></input>
<output><soap:body use="literal" namespace="http://jaxb.ws.jax.samples.chathurangaonline.com/"/></output>
</operation><operation name="create">
<soap:operation soapAction=""/>
<input><soap:body use="literal" namespace="http://jaxb.ws.jax.samples.chathurangaonline.com/"/></input>
<output><soap:body use="literal" namespace="http://jaxb.ws.jax.samples.chathurangaonline.com/"/></output>
</operation>
</binding>
How to determine the SOAP version of the SOAP message?
but remember that this is not much recommended way to determine the soap version that your web services uses. the version of the soap message can be determined using one of following ways.
1. checking the namespace of the soap message
SOAP 1.1 namespace : http://schemas.xmlsoap.org/soap/envelope
SOAP 1.2 namespace : http://www.w3.org/2003/05/soap-envelope
2. checking the transport binding information (http header information) of the soap message
SOAP 1.1 : user text/xml for the Context-Type
POST /MyService HTTP/1.1
Content-Type: text/xml; charset="utf-8"
Content-Length: xxx
SOAPAction: "urn:uuid:myaction"
SOAP 1.2 : user application/soap+xml for the Context-Type
POST /MyService HTTP/1.1
Content-Type: application/soap+xml; charset="utf-8"
Content-Length: xxx
SOAPAction: "urn:uuid:myaction"
3. using SOAP fault information
The structure of a SOAP fault message between the two versions are different.
Convert your x-axis data from text to datetime.datetime, use datetime.strptime:
>>> from datetime import datetime
>>> datetime.strptime("2012-may-31 19:00", "%Y-%b-%d %H:%M")
datetime.datetime(2012, 5, 31, 19, 0)
This is an example of how to plot data once you have an array of datetimes:
import matplotlib.pyplot as plt
import datetime
import numpy as np
x = np.array([datetime.datetime(2013, 9, 28, i, 0) for i in range(24)])
y = np.random.randint(100, size=x.shape)
plt.plot(x,y)
plt.show()
This is what I've been using for development:
<?xml version="1.0" ?>
<cross-domain-policy>
<allow-access-from domain="*" />
</cross-domain-policy>
This is a very liberal approach, but is fine for my application.
As others have pointed out below, beware the risks of this.
You must define the class before creating an instance of the class. Move the invocation of Something to the end of the script.
You can try to put the cart before the horse and invoke procedures before they are defined, but it will be an ugly hack and you will have to roll your own as defined here:
//prompts for input in javascript
test=prompt("Enter a value?","some string");
//passes javascript to a hidden field.
document.getElementById('myField').value = test;
//prompts for input in javascript
test2=prompt("Enter a value?","some string2");
//passes javascript to a hidden field
document.getElementById('myField').value = test2;
//prints output
document.write("hello, "+test+test2;
now this is confusing but this should work...
The content inside strings in Golang can be compared using == operator. If the results are not as expected there may be some hidden characters like \n, \r, spaces, etc. So as a general rule of thumb, try removing those using functions provided by strings package in golang.
For Instance, spaces can be removed using strings.TrimSpace function. You can also define a custom function to remove any character you need. strings.TrimFunc function can give you more power.
Or just simply using the datetime standard module
In [2]: from datetime import timezone, datetime
...: int(datetime.now(tz=timezone.utc).timestamp() * 1000)
...:
Out[2]: 1514901741720
You can truncate or multiply depending on the resolution you want. This example is outputting millis.
If you want a proper Unix timestamp (in seconds) remove the * 1000
You need to allow Allow USB debugging when the popup shows up when you first connect to the computer!
You can use window.location.pathname.split('/');
That will produce an array with all of the items between the /'s
I think it might be preferred to actually do
if isinstance(x, str):
do_something_with_a_string(x)
elif isinstance(x, dict):
do_somethting_with_a_dict(x)
else:
raise ValueError
2 Alternate forms, depending on your code one or the other is probably considered better than that even. One is to not look before you leap
try:
one, two = tupleOrValue
except TypeError:
one = tupleOrValue
two = None
The other approach is from Guido and is a form of function overloading which leaves your code more open ended.
Is this what you're looking for?
#include <chrono>
#include <iostream>
int main()
{
typedef std::chrono::high_resolution_clock Time;
typedef std::chrono::milliseconds ms;
typedef std::chrono::duration<float> fsec;
auto t0 = Time::now();
auto t1 = Time::now();
fsec fs = t1 - t0;
ms d = std::chrono::duration_cast<ms>(fs);
std::cout << fs.count() << "s\n";
std::cout << d.count() << "ms\n";
}
which for me prints out:
6.5e-08s
0ms
Using the Signum.Utilities library from SignumFramework (which you can use stand-alone), you can get it nicely and without dealing with the registry by yourself:
AboutTools.FrameworkVersions().ToConsole();
//Writes in my machine:
//v2.0.50727 SP2
//v3.0 SP2
//v3.5 SP1
Maybe this is what you mean to do:
import random
x = 0
z = input('Please Enter an integer: ')
z = int(z) # you need to capture the result of the expressioin: int(z) and assign it backk to z
def main():
for i in range(x,z):
n1 = random.randrange(1,3)
n2 = random.randrange(1,3)
t1 = n1+n2
print('{0}+{1}={2}'.format(n1,n2,t1))
main()
Here's a link on the range() function: http://docs.python.org/release/1.5.1p1/tut/range.html
Use ( ) in regexp and group(1) in python to retrieve the captured string (re.search will return None if it doesn't find the result, so don't use group() directly):
title_search = re.search('<title>(.*)</title>', html, re.IGNORECASE)
if title_search:
title = title_search.group(1)
If you append json data to query string, and parse it later in web api side. you can parse complex object. It's useful rather than post json object style. This is my solution.
//javascript file
var data = { UserID: "10", UserName: "Long", AppInstanceID: "100", ProcessGUID: "BF1CC2EB-D9BD-45FD-BF87-939DD8FF9071" };
var request = JSON.stringify(data);
request = encodeURIComponent(request);
doAjaxGet("/ProductWebApi/api/Workflow/StartProcess?data=", request, function (result) {
window.console.log(result);
});
//webapi file:
[HttpGet]
public ResponseResult StartProcess()
{
dynamic queryJson = ParseHttpGetJson(Request.RequestUri.Query);
int appInstanceID = int.Parse(queryJson.AppInstanceID.Value);
Guid processGUID = Guid.Parse(queryJson.ProcessGUID.Value);
int userID = int.Parse(queryJson.UserID.Value);
string userName = queryJson.UserName.Value;
}
//utility function:
public static dynamic ParseHttpGetJson(string query)
{
if (!string.IsNullOrEmpty(query))
{
try
{
var json = query.Substring(7, query.Length - 7); //seperate ?data= characters
json = System.Web.HttpUtility.UrlDecode(json);
dynamic queryJson = JsonConvert.DeserializeObject<dynamic>(json);
return queryJson;
}
catch (System.Exception e)
{
throw new ApplicationException("can't deserialize object as wrong string content!", e);
}
}
else
{
return null;
}
}
A mix between others answers:
Just copy&paste ;)
if (location.hash) {
$('a[href=\'' + location.hash + '\']').tab('show');
}
var activeTab = localStorage.getItem('activeTab');
if (activeTab) {
$('a[href="' + activeTab + '"]').tab('show');
}
$('body').on('click', 'a[data-toggle=\'tab\']', function (e) {
e.preventDefault()
var tab_name = this.getAttribute('href')
if (history.pushState) {
history.pushState(null, null, tab_name)
}
else {
location.hash = tab_name
}
localStorage.setItem('activeTab', tab_name)
$(this).tab('show');
return false;
});
$(window).on('popstate', function () {
var anchor = location.hash ||
$('a[data-toggle=\'tab\']').first().attr('href');
$('a[href=\'' + anchor + '\']').tab('show');
});
The following macro is not quite as compact as a single-use ostringstream or boost::lexical_cast.
But if you need conversion-to-string repeatedly in your code, this macro is more elegant in use than directly handling stringstreams or explicit casting every time.
It is also very versatile, as it converts everything supported by operator<<(), even in combination.
Definition:
#include <sstream>
#define SSTR( x ) dynamic_cast< std::ostringstream & >( \
( std::ostringstream() << std::dec << x ) ).str()
Explanation:
The std::dec is a side-effect-free way to make the anonymous ostringstream into a generic ostream so operator<<() function lookup works correctly for all types. (You get into trouble otherwise if the first argument is a pointer type.)
The dynamic_cast returns the type back to ostringstream so you can call str() on it.
Use:
#include <string>
int main()
{
int i = 42;
std::string s1 = SSTR( i );
int x = 23;
std::string s2 = SSTR( "i: " << i << ", x: " << x );
return 0;
}
XCOPY /S folder1\data.zip copy_of_folder1
XCOPY /S folder1\info.txt copy_of_folder1
EDIT: If you want to preserve the empty folders (which, on rereading your post, you seem to) use /E instead of /S.
If you want to completely wipe the database and resync it in the same go you need something like the following. I also combine adding test data in this command:
#!/usr/bin/env python
import os
os.environ.setdefault("DJANGO_SETTINGS_MODULE", "main.settings") # Replace with your app name.
from django.db import connection
from django.core.management import call_command
from django.conf import settings
# If you're using postgres you can't use django's sql stuff for some reason that I
# can't remember. It has to do with that autocommit thing I think.
# import psychodb2 as db
def recreateDb():
print("Wiping database")
dbinfo = settings.DATABASES['default']
# Postgres version
#conn = db.connect(host=dbinfo['HOST'], user=dbinfo['USER'],
# password=dbinfo['PASSWORD'], port=int(dbinfo['PORT'] or 5432))
#conn.autocommit = True
#cursor = conn.cursor()
#cursor.execute("DROP DATABASE " + dbinfo['NAME'])
#cursor.execute("CREATE DATABASE " + dbinfo['NAME'] + " WITH ENCODING 'UTF8'") # Default is UTF8, but can be changed so lets be sure.
# Mysql version:
print("Dropping and creating database " + dbinfo['NAME'])
cursor = connection.cursor()
cursor.execute("DROP DATABASE " + dbinfo["NAME"] + "; CREATE DATABASE " + dbinfo["NAME"] + "; USE " + dbinfo["NAME"] + ";")
print("Done")
if __name__ == "__main__":
recreateDb();
print("Syncing DB")
call_command('syncdb', interactive=False)
print("Adding test data")
addTestData() # ...
It would be nice to be able to do cursor.execute(call_command('sqlclear', 'main')) but call_command prints the SQL to stdout rather than returning it as a string, and I can't work out the sql_delete code...
The MySQL documentation you cite actually says a little bit more than you mention. It also says,
A “
'” inside a string quoted with “'” may be written as “''”.
(Also, you linked to the MySQL 5.0 version of Table 8.1. Special Character Escape Sequences, and the current version is 5.6 — but the current Table 8.1. Special Character Escape Sequences looks pretty similar.)
I think the Postgres note on the backslash_quote (string) parameter is informative:
This controls whether a quote mark can be represented by
\'in a string literal. The preferred, SQL-standard way to represent a quote mark is by doubling it ('') but PostgreSQL has historically also accepted\'. However, use of\'creates security risks...
That says to me that using a doubled single-quote character is a better overall and long-term choice than using a backslash to escape the single-quote.
Now if you also want to add choice of language, choice of SQL database and its non-standard quirks, and choice of query framework to the equation, then you might end up with a different choice. You don't give much information about your constraints.
Solution provide in the questions which you linked is correct. Problem with your implementation is that You have not specified the ID of element correctly.
Secondly you need to use load event to execute your code. Currently DOM is not loaded hence element is not found thus you are getting error.
HTML
<div id="YourElementId" ng-app='MyModule' ng-controller="MyController">
Hi
</div>
JS Code
angular.module('MyModule', [])
.controller('MyController', function ($scope) {
$scope.myfunction = function (data) {
alert("---" + data);
};
});
window.onload = function () {
angular.element(document.getElementById('YourElementId')).scope().myfunction('test');
}
Very simply, you can rename your Python script to "pythonscript.cgi". Post that in your cgi-bin directory, add the appropriate permissions and browse to it.
This is a great link you can start with.
Hope that helps.
EDIT (09/12/2015): The second link has long been removed. Replaced it with one that provides information referenced from the original.
Simply. You can go to 'File -> Preferences -> Color Theme' option in visual studio and change the color of you choice.
It exists a property called XmlElementAttribute.IsNullable
If the IsNullable property is set to true, the xsi:nil attribute is generated for class members that have been set to a null reference.
The following example shows a field with the XmlElementAttribute applied to it, and the IsNullable property set to false.
public class MyClass
{
[XmlElement(IsNullable = false)]
public string Group;
}
You can have a look to other XmlElementAttribute for changing names in serialization etc.
As best I can tell, it is not possible to update the select2 options without refreshing the entire list or entering some search text and using a query function.
What are those buttons supposed to do? If they are used to determine the select options, why not put them outside of the select box, and have them programmatically set the select box data and then open it? I don't understand why you would want to put them on top of the search box. If the user is not supposed to search, you can use the minimumResultsForSearch option to hide the search feature.
Edit: How about this...
HTML:
<input type="hidden" id="select2" class="select" />
Javascript
var data = [{id: 0, text: "Zero"}],
select = $('#select2');
select.select2({
query: function(query) {
query.callback({results: data});
},
width: '150px'
});
console.log('Opening select2...');
select.select2('open');
setTimeout(function() {
console.log('Updating data...');
data = [{id: 1, text: 'One'}];
}, 1500);
setTimeout(function() {
console.log('Fake keyup-change...');
select.data().select2.search.trigger('keyup-change');
}, 3000);
Example: Plunker
Edit 2: That will at least get it to update the list, however there is still some weirdness if you have entered search text before triggering the keyup-change event.
a bit of a cheat, but it works:
HTML:
<ol type="A" style="font-weight: bold;">
<li><span>Text</span></li>
<li><span>More text</span></li>
</ol>
CSS:
li span { font-weight: normal; }
You can also use the AddRange method
listBox1.Items.AddRange(myList.ToArray());
Java does have unsigned types, or at least one: char is an unsigned short. So whatever excuse Gosling throws up it's really just his ignorance why there are no other unsigned types.
Also Short types: shorts are used all the time for multimedia. The reason is you can fit 2 samples in a single 32-bit unsigned long and vectorize many operations. Same thing with 8-bit data and unsigned byte. You can fit 4 or 8 samples in a register for vectorizing.
Yes. Please see the man page of bash ( the first thing you go to ) under Special Parameters
Special Parameters
The shell treats several parameters specially. These parameters may only be referenced; assignment to them is not allowed.
*Expands to the positional parameters, starting from one. When the expansion occurs within double quotes, it expands to a single word with the value of each parameter separated by the first character of the IFS special variable. That is,"$*"is equivalent to"$1c$2c...", wherecis the first character of the value of the IFS variable. If IFS is unset, the parameters are separated by spaces. If IFS is null, the parameters are joined without intervening separators.
@Expands to the positional parameters, starting from one. When the expansion occurs within double quotes, each parameter expands to a separate word. That is,"$@"is equivalent to"$1""$2"... If the double-quoted expansion occurs within a word, the expansion of the first parameter is joined with the beginning part of the original word, and the expansion of the last parameter is joined with the last part of the original word. When there are no positional parameters,"$@"and$@expand to nothing (i.e., they are removed).
Don't give exact heights, but relative ones, adding up to 100%. For example:
#content {height: 80%;}
#footer {height: 20%;}
Add in
html, body {height: 100%;}
There are 3 options, you probably want #3
1. This will keep the local file for you, but will delete it for anyone else when they pull.
git rm --cached <file-name> or git rm -r --cached <folder-name>
2. This is for optimization, like a folder with a large number of files, e.g. SDKs that probably won't ever change. It tells git to stop checking that huge folder every time for changes, locally, since it won't have any. The assume-unchanged index will be reset and file(s) overwritten if there are upstream changes to the file/folder (when you pull).
git update-index --assume-unchanged <path-name>
3. This is to tell git you want your own independent version of the file or folder. For instance, you don't want to overwrite (or delete) production/staging config files.
git update-index --skip-worktree <path-name>
It's important to know that git update-index will not propagate with git, and each user will have to run it independently.
Implementations of java.util.Set
Default rounding in python and numpy:
In: [round(i) for i in np.arange(10) + .5]
Out: [0, 2, 2, 4, 4, 6, 6, 8, 8, 10]
I used this to get integer rounding to be applied to a pandas series:
import decimal
and use this line to set the rounding to "half up" a.k.a rounding as taught in school:
decimal.getcontext().rounding = decimal.ROUND_HALF_UP
Finally I made this function to apply it to a pandas series object
def roundint(value):
return value.apply(lambda x: int(decimal.Decimal(x).to_integral_value()))
So now you can do roundint(df.columnname)
And for numbers:
In: [int(decimal.Decimal(i).to_integral_value()) for i in np.arange(10) + .5]
Out: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
Credit: kares
If you are using Docker toolkit on window 10 home you will need to access the webpage through docker-machine ip command. It is generally 192.168.99.100:
It is assumed that you are running with publish command like below.
docker run -it -p 8080:8080 demo
With Window 10 pro version you can access with localhost or corresponding loopback 127.0.0.1:8080 etc (Tomcat or whatever you wish). This is because you don't have a virtual box there and docker is running directly on Window Hyper V and loopback is directly accessible.
Verify the hosts file in window for any digression. It should have 127.0.0.1 mapped to localhost
In more explanation for n. 'pronouns' m.'s answer,
Public-key crypto is not for encrypting arbitrarily long files. One uses a symmetric cipher (say AES) to do the normal encryption. Each time a new random symmetric key is generated, used, and then encrypted with the RSA cipher (public key). The ciphertext together with the encrypted symmetric key is transferred to the recipient. The recipient decrypts the symmetric key using his private key, and then uses the symmetric key to decrypt the message.
There is the flow of Encryption:
+---------------------+ +--------------------+
| | | |
| generate random key | | the large file |
| (R) | | (F) |
| | | |
+--------+--------+---+ +----------+---------+
| | |
| +------------------+ |
| | |
v v v
+--------+------------+ +--------+--+------------+
| | | |
| encrypt (R) with | | encrypt (F) |
| your RSA public key | | with symmetric key (R) |
| | | |
| ASym(PublicKey, R) | | EF = Sym(F, R) |
| | | |
+----------+----------+ +------------+-----------+
| |
+------------+ +--------------+
| |
v v
+--------------+-+---------------+
| |
| send this files to the peer |
| |
| ASym(PublicKey, R) + EF |
| |
+--------------------------------+
And the flow of Decryption:
+----------------+ +--------------------+
| | | |
| EF = Sym(F, R) | | ASym(PublicKey, R) |
| | | |
+-----+----------+ +---------+----------+
| |
| |
| v
| +-------------------------+-----------------+
| | |
| | restore key (R) |
| | |
| | R <= ASym(PrivateKey, ASym(PublicKey, R)) |
| | |
| +---------------------+---------------------+
| |
v v
+---+-------------------------+---+
| |
| restore the file (F) |
| |
| F <= Sym(Sym(F, R), R) |
| |
+---------------------------------+
Besides, you can use this commands:
# generate random symmetric key
openssl rand -base64 32 > /config/key.bin
# encryption
openssl rsautl -encrypt -pubin -inkey /config/public_key.pem -in /config/key.bin -out /config/key.bin.enc
openssl aes-256-cbc -a -pbkdf2 -salt -in $file_name -out $file_name.enc -k $(cat /config/key.bin)
# now you can send this files: $file_name.enc + /config/key.bin.enc
# decryption
openssl rsautl -decrypt -inkey /config/private_key.pem -in /config/key.bin.enc -out /config/key.bin
openssl aes-256-cbc -d -a -in $file_name.enc -out $file_name -k $(cat /config/key.bin)
You can use itertools.count() to generate unbounded sequences. (itertools is in the Python standard library). Docs here:
https://docs.python.org/3/library/itertools.html#itertools.count
This solves the problem of releasing the memory for me!!!
import gc
import pandas as pd
del [[df_1,df_2]]
gc.collect()
df_1=pd.DataFrame()
df_2=pd.DataFrame()
the data-frame will be explicitly set to null
in the above statements
Firstly, the self reference of the dataframe is deleted meaning the dataframe is no longer available to python there after all the references of the dataframe is collected by garbage collector (gc.collect()) and then explicitly set all the references to empty dataframe.
more on the working of garbage collector is well explained in https://stackify.com/python-garbage-collection/
char grid[row][col];
memset(grid, ' ', sizeof(grid));
That's for initializing char array elements to space characters.
RemoteEndPoint is a property, its type is System.Net.EndPoint which inherits from System.Net.IPEndPoint.
If you take a look at IPEndPoint's members, you'll see that there's an Address property.
I used:
.current-page a:hover {
pointer-events: none !important;
}
And was not enough; in some browsers it still displayed the link, blinking.
I had to add:
.current-page a {
cursor: text !important;
}
Citing this Stack Overflow answer.
It is a pretty neat way to get type-of-change (A:Added, M:Modified, D:Deleted) for each file that got changed.
git diff --name-status
While Loop is an obsolete structure, I would recommend you to replace "While loop" to "Do While..loop", and you will able to use Exit clause.
check = 0
Do while not rs.EOF
if rs("reg_code") = rcode then
check = 1
Response.Write ("Found")
Exit do
else
rs.MoveNext
end if
Loop
if check = 0 then
Response.Write "Not Found"
end if}
Open the Windows > Preferences menu.
Expand the Run/Debug > Console preferences.
Set the Console buffer size (characters) to something much bigger. 2147383647 / ~2GB is the upper limit (or 1000000 / ~1MB in older releases). Or just uncheck the Limit console output.
You should use require_once and include_once. Inside parent.php use
include_once 'database.php';
And inside child1.php and child2.php use
include_once 'parent.php';
I had the same issue. I solved it by running the command in a different python version. I tried python3 filename.py. Earlier i was using Python 2.7.
Another possibility is that the file from which something is imported may contain BOM (Byte Order Mark). It can be solved by opening the file in some editor which supports multiple encoding like VSCode (Notepad++) and saving in a different encoding statndard like ANSI, UTF-8(without BOM).
In bootstrap 4 use "autoHide : true"
$('#datepicker1').datepicker({
autoHide: true,
format: 'mm-yyyy',
endDate: new Date()
});
You can't do it with standard library. Using pytz module you can convert any naive/aware datetime object to any other time zone. Lets see some examples using Python 3.
Naive objects created through class method
utcnow()
To convert a naive object to any other time zone, first you have to convert it into aware datetime object. You can use the replace method for converting a naive datetime object to an aware datetime object. Then to convert an aware datetime object to any other timezone you can use astimezone method.
The variable pytz.all_timezones gives you the list of all available time zones in pytz module.
import datetime,pytz
dtobj1=datetime.datetime.utcnow() #utcnow class method
print(dtobj1)
dtobj3=dtobj1.replace(tzinfo=pytz.UTC) #replace method
dtobj_hongkong=dtobj3.astimezone(pytz.timezone("Asia/Hong_Kong")) #astimezone method
print(dtobj_hongkong)
Naive objects created through class method
now()
Because now method returns current date and time, so you have to make the datetime object timezone aware first. The localize function converts a naive datetime object into a timezone-aware datetime object. Then you can use the astimezone method to convert it into another timezone.
dtobj2=datetime.datetime.now()
mytimezone=pytz.timezone("Europe/Vienna") #my current timezone
dtobj4=mytimezone.localize(dtobj2) #localize function
dtobj_hongkong=dtobj4.astimezone(pytz.timezone("Asia/Hong_Kong")) #astimezone method
print(dtobj_hongkong)
Late answer (8 yrs), but for someone looking to join multiple files into one, the following function may be of help:
def multi_open(_list):
out=""
for x in _list:
try:
with open(x) as f:
out+=f.read()
except:
pass
# print(f"Cannot open file {x}")
return(out)
fl = ["C:/bdlog.txt", "C:/Jts/tws.vmoptions", "C:/not.exist"]
print(multi_open(fl))
2018-10-23 19:18:11.361 PROFILE [Stop Drivers] [1ms]
2018-10-23 19:18:11.361 PROFILE [Parental uninit] [0ms]
...
# This file contains VM parameters for Trader Workstation.
# Each parameter should be defined in a separate line and the
...
Simply add alignSelf: "stretch" to your item's stylesheet.
line1: {
backgroundColor: '#FDD7E4',
alignSelf: 'stretch',
textAlign: 'center',
},
res.json eventually calls res.send, but before that it:
json spaces and json replacer app settingsThe error is because difference in datatypes of y_pred and y_true. y_true might be dataframe and y_pred is arraylist. If you convert both to arrays, then issue will get resolved.
To add up on the selected answer, I have been testing a new option that is working too using jinja2 and flask:
@app.route('/')
def my_view():
data = [1, 2, 3, 4, 5]
return render_template('index.html', data=data)
The template:
<script>
console.log( {{ data | tojson }} )
</script>
the output of the rendered template:
<script>
console.log( [1, 2, 3, 4] )
</script>
The safe could be added but as well like {{ data | tojson | safe }} to avoid html escape but it is working without too.
I would suggest using MonoDevelop.
It is pretty much explicitly designed for use with Mono, and all set up to develop in C#.
The simplest way to install it on Ubuntu would be to install the monodevelop package in Ubuntu. (link on Mono on ubuntu.com) (However, if you want to install a more recent version, I am not sure which PPA would be appropriate)
However, I would not recommend developing with the WinForms toolkit - I do not expect it to have the same behavior in Windows and Mono (the implementations are pretty different). For an overview of the UI toolkits that work with Mono, you can go to the information page on Mono-project.
The name of the custom ini file depends on the user_ini.filename php setting. By default this should be .user.ini and the custom configuration files are used on a per-directory basis, so you should be able to either put it in the root of your Wordpress installation or under the wp-admin folder.
You can check the name of your custom configuration file by running:
php -i | grep user_ini.filename
I have created a plugin which makes it possible to change php settings from the Wordpress administration:
The plugin makes it possible to change settings either using the .htaccess file or the custom php.ini file, depending on how php is running.
<form id="rates">
<input type="radio" name="rate" value="Fixed Rate"> Fixed
<input type="radio" name="rate" value="Variable Rate"> Variable
<input type="radio" name="rate" value="Multi Rate" checked> Multi
</form>
then...
var rate_value = rates.rate.value;
You can always add the "!" into your float-options. This way, latex tries really hard to place the figure where you want it (I mostly use [h!tb]), stretching the normal rules of type-setting.
I have found another solution:
Use the float-package. This way you can place the figures where you want them to be.
readlink is the bash standard for obtaining the absolute path. It also has the advantage of returning empty strings if paths or a path doesn't exist (given the flags to do so).
To get the absolute path to a directory that may or may not exist, but who's parents do exist, use:
abspath=$(readlink -f $path)
To get the absolute path to a directory that must exist along with all parents:
abspath=$(readlink -e $path)
To canonicalise the given path and follow symlinks if they happen to exist, but otherwise ignore missing directories and just return the path anyway, it's:
abspath=$(readlink -m $path)
The only downside is that readlink will follow links. If you do not want to follow links, you can use this alternative convention:
abspath=$(cd ${path%/*} && echo $PWD/${path##*/})
That will chdir to the directory part of $path and print the current directory along with the file part of $path. If it fails to chdir, you get an empty string and an error on stderr.
If you want to use @Html.EditorFor() you have to use jQuery ui and update your Asp.net Mvc to 5.2.6.0 with NuGet Package Manager.
@Html.EditorFor(m => m.EntryDate, new { htmlAttributes = new { @class = "datepicker" } })
@section Scripts {
@Scripts.Render("~/bundles/jqueryval")
<script>
$(document).ready(function(){
$('.datepicker').datepicker();
});
</script>
}
First composer requires doctrine/dbal, then:
$table->longText('column_name')->change();
Here is example of using separated parallel and for here. In short it can be used for dynamic allocation of OpenMP thread-private arrays before executing for cycle in several threads.
It is impossible to do the same initializing in parallel for case.
UPD: In the question example there is no difference between single pragma and two pragmas. But in practice you can make more thread aware behavior with separated parallel and for directives. Some code for example:
#pragma omp parallel
{
double *data = (double*)malloc(...); // this data is thread private
#pragma omp for
for(1...100) // first parallelized cycle
{
}
#pragma omp single
{} // make some single thread processing
#pragma omp for // second parallelized cycle
for(1...100)
{
}
#pragma omp single
{} // make some single thread processing again
free(data); // free thread private data
}
What you expect is the synchronous (blocking) type request.
var it_works = false;
jQuery.ajax({
type: "POST",
url: 'some_file.php',
success: function (data) {
it_works = true;
},
async: false // <- this turns it into synchronous
});?
// Execution is BLOCKED until request finishes.
// it_works is available
alert(it_works);
Requests are asynchronous (non-blocking) by default which means that the browser won't wait for them to be completed in order to continue its work. That's why your alert got wrong result.
Now, with jQuery.ajax you can optionally set the request to be synchronous, which means that the script will only continue to run after the request is finished.
The RECOMMENDED way, however, is to refactor your code so that the data would be passed to a callback function as soon as the request is finished. This is preferred because blocking execution means blocking the UI which is unacceptable. Do it this way:
$.post("some_file.php", '', function(data) {
iDependOnMyParameter(data);
});
function iDependOnMyParameter(param) {
// You should do your work here that depends on the result of the request!
alert(param)
}
// All code here should be INDEPENDENT of the result of your AJAX request
// ...
Asynchronous programming is slightly more complicated because the consequence of making a request is encapsulated in a function instead of following the request statement. But the realtime behavior that the user experiences can be significantly better because they will not see a sluggish server or sluggish network cause the browser to act as though it had crashed. Synchronous programming is disrespectful and should not be employed in applications which are used by people.
Douglas Crockford (YUI Blog)
The quickest way is to use a tool, like RazorSQL or Toad for doing this.
Use NSLog() like this:
NSLog(@"The code runs through here!");
Or like this - with placeholders:
float aFloat = 5.34245;
NSLog(@"This is my float: %f \n\nAnd here again: %.2f", aFloat, aFloat);
In NSLog() you can use it like + (id)stringWithFormat:(NSString *)format, ...
float aFloat = 5.34245;
NSString *aString = [NSString stringWithFormat:@"This is my float: %f \n\nAnd here again: %.2f", aFloat, aFloat];
You can add other placeholders, too:
float aFloat = 5.34245;
int aInteger = 3;
NSString *aString = @"A string";
NSLog(@"This is my float: %f \n\nAnd here is my integer: %i \n\nAnd finally my string: %@", aFloat, aInteger, aString);
Tracing the root cause, i finally found that the public key of type dsa is not added to the authorized keys on remote server. Appending the same worked for me.
The ssh was working with rsa key, causing me to look back in my code.
thanks everyone.
if it is coming from server as object you can do
this.service.subscribe(data:any) keep any type on data it will solve the issue
One best way is by using window.INITIAL_STATE
<script src="/firstfile.js">
// first.js
window.__INITIAL_STATE__ = {
back : "#fff",
front : "#888",
side : "#369"
};
</script>
<script src="/secondfile.js">
//second.js
console.log(window.__INITIAL_STATE__)
alert (window.__INITIAL_STATE__);
</script>
As stated by Pedro earlier, echo without new line and with preceding space works (provided "9" is a true [BackSpace]).
<nul set /p=.9 Hello everyone
I had some issues getting it to work in Windows 10 with the new console but managed the following way.
In CMD type:
echo .?>bs.txt
I got "?" by pressing [Alt] + [8]
(the actual symbol may vary depending upon codepage).
Then it's easy to copy the result from "bs.txt" using Notepad.exe to where it's needed.
@echo off
<nul set /p "_s=.? Hello everyone"
echo: here
It cant find the entry point for your program, in this case main(). Your linker settings are likely incorrect.
See this post here
The easiest is Simple there is a tutorial, no WEB-INF not Servlet API no dependencies. Just a simple lightweight HTTP server in a single JAR.
How do I invoke a maven task without leaving vi?
Maven is no different than any other shell command:
:!mvn
You can :set makeprg=mvn if you already have a favourite key mapping for :make.
Can I get code completion?
Yes, eclim is great, a bridge between vim's editing efficiency and Eclipse's Java language-specific awareness.
<C-n> and <C-p> are not-so-great, but amazingly helpful.
How's the syntax highlighting?
More than good enough for a regex-based highligher.
You may want to consider tools for other vim+java purposes, like code templates (snippetEmu—default snippets suck, but customizability shines), searching for usages and going to declarations (eclim, grep, ctags), generating getters and setters (java_getset, or eclim), automatic imports (eclim). You might also need a java shell for quick experiments (the BeanShell, a.k.a. bsh).
I suggest you to use mysqldump like so:
mysqldump --compatible=mssql
phpMyAdmin is still a web-app and could potentially have some limitations for large databases (script execution time, allocatable memory and so on).
printf("\nmaximum of %d and %d is = %d",a,b,c);
Sounds like you want a simple imagemap, I'd recommend to not make it more complex than it needs to be. Here's an article on how to improve imagemaps with svg. It's very easy to do clickable regions in svg itself, just add some <a> elements around the shapes you want to have clickable.
A couple of options if you need something more advanced:
I accidentally deleted a whole bunch of data in the wrong environment and this post was one of the first ones I found.
Because I was simultaneously panicking and searching for a solution, I went for the first thing I saw - ApexSQL Logs, which was $2000 which was an acceptable cost.
However, I've since found out that Toad for Sql Server can generate undo scripts from transaction logs and it is only $655.
Lastly, found an even cheaper option SysToolsGroup Log Analyzer and it is only $300.
You need to put the format arguments into a tuple (add parentheses):
instr = "'%s', '%s', '%d', '%s', '%s', '%s', '%s'" % (softname, procversion, int(percent), exe, description, company, procurl)
What you currently have is equivalent to the following:
intstr = ("'%s', '%s', '%d', '%s', '%s', '%s', '%s'" % softname), procversion, int(percent), exe, description, company, procurl
Example:
>>> "%s %s" % 'hello', 'world'
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: not enough arguments for format string
>>> "%s %s" % ('hello', 'world')
'hello world'
You can install OSX on PC but experience wont be great and it needs lot of work. Alternate is to use a framework/SDK Codename one: which is based on JAVA and can be used to code in WP8, Android, iOS on Windows (eclipse) with all extensive features
Features Overview:
More at Develop Android, iOS iPhone, WP8 apps using Java Disclaimer: This is my review for the product
Exactly like in JavaScript, you can use the parseInt or parseFloat functions, or simply use the unary + operator:
var x = "32";
var y: number = +x;
All of the mentioned techniques will have correct typing and will correctly parse simple decimal integer strings like "123", but will behave differently for various other, possibly expected, cases (like "123.45") and corner cases (like null).
Table taken from this answer
Load state from localStorage if exist:
constructor(props) {
super(props);
this.state = JSON.parse(localStorage.getItem('state'))
? JSON.parse(localStorage.getItem('state'))
: initialState
override this.setState to automatically save state after each update :
const orginial = this.setState;
this.setState = function() {
let arguments0 = arguments[0];
let arguments1 = () => (arguments[1], localStorage.setItem('state', JSON.stringify(this.state)));
orginial.bind(this)(arguments0, arguments1);
};
The syntax "select top (@var) ..." only works in SQL SERVER 2005+. For SQL 2000, you can do:
set rowcount @top
select * from sometable
set rowcount 0
Hope this helps
Oisin.
(edited to replace @@rowcount with rowcount - thanks augustlights)
Here is some example code to help you get started:
package com.acme;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
public class FileArrayProvider {
public String[] readLines(String filename) throws IOException {
FileReader fileReader = new FileReader(filename);
BufferedReader bufferedReader = new BufferedReader(fileReader);
List<String> lines = new ArrayList<String>();
String line = null;
while ((line = bufferedReader.readLine()) != null) {
lines.add(line);
}
bufferedReader.close();
return lines.toArray(new String[lines.size()]);
}
}
And an example unit test:
package com.acme;
import java.io.IOException;
import org.junit.Test;
public class FileArrayProviderTest {
@Test
public void testFileArrayProvider() throws IOException {
FileArrayProvider fap = new FileArrayProvider();
String[] lines = fap
.readLines("src/main/java/com/acme/FileArrayProvider.java");
for (String line : lines) {
System.out.println(line);
}
}
}
Hope this helps.
I've simply toggled "Build Active Architecture Only" to "Yes" in the target's build settings, and it's OK now!
You'll want something like this:
$("#next").click(function(){
var currentElement = currentElement.next();
$('html, body').animate({scrollLeft: $(currentElement).offset().left}, 800);
return false;
});
scrollTop function.
I am loading html pages from Documents and if they have the same name of css file UIWebView it seem it does not throw the previous css rules. Maybe because they have the same URL or something.
I tried this:
NSURLCache *sharedCache = [[NSURLCache alloc] initWithMemoryCapacity:0 diskCapacity:0 diskPath:nil];
[NSURLCache setSharedURLCache:sharedCache];
[sharedCache release];
I tried this :
[[NSURLCache sharedURLCache] removeAllCachedResponses];
I am loading the initial page with:
NSURLRequest *appReq = [NSURLRequest requestWithURL:appURL cachePolicy:NSURLRequestReloadIgnoringLocalCacheData timeoutInterval:20.0];
It refuses to throw its cached data! Frustrating!
I am doing this inside a PhoneGap (Cordova) application. I have not tried it in isolated UIWebView.
Update1: I have found this.
Changing the html files, though seems very messy.
You can control it with CSS, there is a few options :
Hope it helps.
This is the code:
f = open(filename, 'w')
f.write("hello\talex")
The \t inside the string is the escape sequence for the horizontal tabulation.
You can do it in multiple ways:
1. Using greater as comparison function :
#include <bits/stdc++.h>
using namespace std;
int main()
{
priority_queue<int,vector<int>,greater<int> >pq;
pq.push(1);
pq.push(2);
pq.push(3);
while(!pq.empty())
{
int r = pq.top();
pq.pop();
cout<<r<< " ";
}
return 0;
}
2. Inserting values by changing their sign (using minus (-) for positive number and using plus (+) for negative number :
int main()
{
priority_queue<int>pq2;
pq2.push(-1); //for +1
pq2.push(-2); //for +2
pq2.push(-3); //for +3
pq2.push(4); //for -4
while(!pq2.empty())
{
int r = pq2.top();
pq2.pop();
cout<<-r<<" ";
}
return 0;
}
3. Using custom structure or class :
struct compare
{
bool operator()(const int & a, const int & b)
{
return a>b;
}
};
int main()
{
priority_queue<int,vector<int>,compare> pq;
pq.push(1);
pq.push(2);
pq.push(3);
while(!pq.empty())
{
int r = pq.top();
pq.pop();
cout<<r<<" ";
}
return 0;
}
4. Using custom structure or class you can use priority_queue in any order. Suppose, we want to sort people in descending order according to their salary and if tie then according to their age.
struct people
{
int age,salary;
};
struct compare{
bool operator()(const people & a, const people & b)
{
if(a.salary==b.salary)
{
return a.age>b.age;
}
else
{
return a.salary>b.salary;
}
}
};
int main()
{
priority_queue<people,vector<people>,compare> pq;
people person1,person2,person3;
person1.salary=100;
person1.age = 50;
person2.salary=80;
person2.age = 40;
person3.salary = 100;
person3.age=40;
pq.push(person1);
pq.push(person2);
pq.push(person3);
while(!pq.empty())
{
people r = pq.top();
pq.pop();
cout<<r.salary<<" "<<r.age<<endl;
}
Same result can be obtained by operator overloading :
struct people
{
int age,salary;
bool operator< (const people & p)const
{
if(salary==p.salary)
{
return age>p.age;
}
else
{
return salary>p.salary;
}
}};
In main function :
priority_queue<people> pq;
people person1,person2,person3;
person1.salary=100;
person1.age = 50;
person2.salary=80;
person2.age = 40;
person3.salary = 100;
person3.age=40;
pq.push(person1);
pq.push(person2);
pq.push(person3);
while(!pq.empty())
{
people r = pq.top();
pq.pop();
cout<<r.salary<<" "<<r.age<<endl;
}
I try lots of ways and finally try this:
def db_persist(func):
def persist(*args, **kwargs):
func(*args, **kwargs)
try:
session.commit()
logger.info("success calling db func: " + func.__name__)
return True
except SQLAlchemyError as e:
logger.error(e.args)
session.rollback()
return False
return persist
and :
@db_persist
def insert_or_update(table_object):
return session.merge(table_object)
Use:
List<Person> pList = new List<Person>();
/* Fill list */
var result = pList.Where(p => p.Name != null).GroupBy(p => p.Id).Select(grp => grp.FirstOrDefault());
The where helps you filter the entries (could be more complex) and the groupby and select perform the distinct function.
mm stands for "minutes". Use MM instead:
SimpleDateFormat sdf1 = new SimpleDateFormat("dd-MM-yyyy");
Setting the image using picture.ImageLocation() works fine, but you are using a relative path. Check your path against the location of the .exe after it is built.
For example, if your .exe is located at:
<project folder>/bin/Debug/app.exe
The image would have to be at:
<project folder>/bin/Image/1.jpg
Of course, you could just set the image at design-time (the Image property on the PictureBox property sheet).
If you must set it at run-time, one way to make sure you know the location of the image is to add the image file to your project. For example, add a new folder to your project, name it Image. Right-click the folder, choose "Add existing item" and browse to your image (be sure the file filter is set to show image files). After adding the image, in the property sheet set the Copy to Output Directory to Copy if newer.
At this point the image file will be copied when you build the application and you can use
picture.ImageLocation = @"Image\1.jpg";
jarsigner can use your pfx file as the keystore for signing your jar. Be sure that your pfx file has the private key and the cert chain when you export it. There is no need to convert to other formats. The trick is to obtain the Alias of your pfx file:
keytool -list -storetype pkcs12 -keystore your_pfx_file -v | grep Alias
Once you have your alias, signing is easy
jarsigner.exe -storetype pkcs12 -keystore pfx_file jar_file "your alias"
The above two commands will prompt you for the password you specified at pfx export. If you want to have your password hang out in clear text use the -storepass switch before the -keystore switch
Once signed, admire your work:
jarsigner.exe -verify -verbose -certs yourjarfile
This works in Hibernate 4(Tested).
String hql="select count(*) from Book";
Query query= getCurrentSession().createQuery(hql);
Long count=(Long) query.uniqueResult();
return count;
Where getCurrentSession() is:
@Autowired
private SessionFactory sessionFactory;
private Session getCurrentSession(){
return sessionFactory.getCurrentSession();
}
Try something like this:
@players.include?(p.name) ? false : true
I had a similar problem. Just to help out someone with the same issue:
My error was the user file attribute for the files in /var/www. After changing them back to the user "www-data", the problem was gone.
import itertools
foos=[1.0, 2.0, 3.0, 4.0, 5.0]
bars=[1, 2, 3]
print zip(foos, itertools.cycle([bars]))
I was able to resize the vmdk by cloning it and then modifying and resizing.
vboxmanage clonehd "virtualdisk.vmdk" "new-virtualdisk.vdi" --format vdi
vboxmanage modifyhd "new-virtualdisk.vdi" --resize 30720
For selecting within single quotes use vi'.
For selecting within parenthesis use vi(.
Hopefully it's helpful for you:
.text-with-dots {_x000D_
display: block;_x000D_
max-width: 98%;_x000D_
white-space: nowrap;_x000D_
overflow: hidden !important;_x000D_
text-overflow: ellipsis;_x000D_
}<div class='text-with-dots'>Some texts here Some texts here Some texts here Some texts here Some texts here Some texts here </div>I'm going to add my solution to my particular problem. I had two collections at the same level I needed to include. The final solution looked like this.
var recipe = _bartendoContext.Recipes
.Include(r => r.Ingredients)
.ThenInclude(r => r.Ingredient)
.Include(r => r.Ingredients)
.ThenInclude(r => r.MeasurementQuantity)
.FirstOrDefault(r => r.Id == recipeId);
if (recipe?.Ingredients == null) return 0m;
var abv = recipe.Ingredients.Sum(ingredient => ingredient.Ingredient.AlcoholByVolume * ingredient.MeasurementQuantity.Quantity);
return abv;
This is calculating the percent alcohol by volume of a given drink recipe. As you can see I just included the ingredients collection twice then included the ingredient and quantity onto that.
Have you already looked at adding a check constraint on that column which would restrict values? Something like:
CREATE TABLE SomeTable
(
Id int NOT NULL,
Frequency varchar(200),
CONSTRAINT chk_Frequency CHECK (Frequency IN ('Daily', 'Weekly', 'Monthly', 'Yearly'))
)
A faster / alternative way to change the height and/or width of a UIView is by setting its width/height through frame.size:
let neededHeight = UIScreen.main.bounds.height * 0.2
yourView.frame.size.height = neededHeight
I've faced this issue today. I am using Centos7, the solution was to install tomcat-admin-webapp package.
yum install tomcat-webapps tomcat-admin-webapps
A pure RESTful API should use the underlying protocol standard features:
For HTTP, the RESTful API should comply with existing HTTP standard headers. Adding a new HTTP header violates the REST principles. Do not re-invent the wheel, use all the standard features in HTTP/1.1 standards - including status response codes, headers, and so on. RESTFul web services should leverage and rely upon the HTTP standards.
RESTful services MUST be STATELESS. Any tricks, such as token based authentication that attempts to remember the state of previous REST requests on the server violates the REST principles. Again, this is a MUST; that is, if you web server saves any request/response context related information on the server in attempt to establish any sort of session on the server, then your web service is NOT Stateless. And if it is NOT stateless it is NOT RESTFul.
Bottom-line: For authentication/authorization purposes you should use HTTP standard authorization header. That is, you should add the HTTP authorization / authentication header in each subsequent request that needs to be authenticated. The REST API should follow the HTTP Authentication Scheme standards.The specifics of how this header should be formatted are defined in the RFC 2616 HTTP 1.1 standards – section 14.8 Authorization of RFC 2616, and in the RFC 2617 HTTP Authentication: Basic and Digest Access Authentication.
I have developed a RESTful service for the Cisco Prime Performance Manager application. Search Google for the REST API document that I wrote for that application for more details about RESTFul API compliance here. In that implementation, I have chosen to use HTTP "Basic" Authorization scheme. - check out version 1.5 or above of that REST API document, and search for authorization in the document.
To display the item number on the repeater you can use the Container.ItemIndex property.
<asp:repeater id="rptRepeater" runat="server">
<itemtemplate>
Item <%# Container.ItemIndex + 1 %>| <%# Eval("Column1") %>
</itemtemplate>
<separatortemplate>
<br />
</separatortemplate>
</asp:repeater>
var_dump($obj);
If you want more info you can use a ReflectionClass:
Use indexOf() method to find first occurrence of the element in the collection.
You can store this in a long. A long can store a value from -9223372036854775808 to 9223372036854775807.
I also have this problem so don't worry. It comes from mail server side due to an outside authentication issue. Open your mail and you will get a mail from the mail server telling you to enable accessibility. When you have done that, retry your program.
You can to use split to do it:
String[] elements = s.split(",");
for(String s1: elements) {
String[] keyValue = s1.split(":");
myMap.put(keyValue[0], keyValue[1]);
}
Nevertheless, myself I will go for guava based solution. https://stackoverflow.com/a/10514513/1356883
Maybe it is a late answer but may help anyone else.
Simple is:
nullabledatevariable.Value.Date.ToString("d")
or just use any format rather than "d".
Best
If you have the table definition to have an IDENTITY column e.g. IDENTITY(1,1) then don't include MyId in your INSERT INTO statement. The point of IDENTITY is it gives it the next unused value as the primary key value.
insert into MYDB.dbo.MainTable (MyFirstName, MyLastName, MyAddress, MyPort)
values(@myFirstName, @myLastName, @myAddress, @myPort)
There is then no need to pass the @MyId parameter into your stored procedure either. So change it to:
CREATE PROCEDURE [dbo].[sp_Test]
@myFirstName nvarchar(50)
,@myLastName nvarchar(50)
,@myAddress nvarchar(MAX)
,@myPort int
AS
If you want to know what the ID of the newly inserted record is add
SELECT @@IDENTITY
to the end of your procedure. e.g. http://msdn.microsoft.com/en-us/library/ms187342.aspx
You will then be able to pick this up in which ever way you are calling it be it SQL or .NET.
P.s. a better way to show you table definision would have been to script the table and paste the text into your stackoverflow browser window because your screen shot is missing the column properties part where IDENTITY is set via the GUI. To do that right click the table 'Script Table as' --> 'CREATE to' --> Clipboard. You can also do File or New Query Editor Window (all self explanitory) experient and see what you get.
DECLARE @dd VARCHAR(200) = 'Net Operating Loss - 2007';
SELECT SUBSTRING(@dd, 1, CHARINDEX('-', @dd) -1) F1,
SUBSTRING(@dd, CHARINDEX('-', @dd) +1, LEN(@dd)) F2
ArrayList check = new ArrayList();
for (int i = 0; i < oDS.Tables[0].Rows.Count; i++)
{
int iValue = Convert.ToInt32(oDS.Tables[0].Rows[i][3].ToString());
check.Add(iValue);
}
I managed to fix it finally. The problem is not related to HikariCP.
The problem persisted because of some complex methods in REST controllers executing multiple changes in DB through JPA repositories. For some reasons calls to these interfaces resulted in a growing number of "freezed" active connections, exhausting the pool. Either annotating these methods as @Transactional or enveloping all the logic in a single call to transactional service method seem to solve the problem.
To properly answer this qustion you need to consider PHP internals or the target that PHP is built for.
To answer this from a typical Linux perspective on x86...
Sizes of types in C: https://usrmisc.wordpress.com/2012/12/27/integer-sizes-in-c-on-32-bit-and-64-bit-linux/
Types used in PHP for variables: http://php.net/manual/en/internals2.variables.intro.php
Strings are always 2GB as the length is always 32bits and a bit is wasted because it uses int rather than uint. int is impractical for lengths over 2GB as it requires a cast to avoid breaking arithmetic or "than" comparisons. The extra bit is likely being used for overflow checks.
Strangely, hash keys might internally support 4GB as uint is used although I have never put this to the test. PHP hash keys have a +1 to the length for a trailing null byte which to my knowledge gets ignored so it may need to be unsigned for that edge case rather than to allow longer keys.
A 32bit system may impose more external limits.
Example of a very simple way for you to achieve the desired effect:
<table border="1" frame="void" rules="all">
<tr>
<td>1111</td>
<td>2222</td>
<td>3333</td>
</tr>
<tr>
<td>4444</td>
<td>5555</td>
<td>6666</td>
</tr>
</table>
new version of postman app has the ability to do that programmatically in pre-request or tests scripts since 2019/08
see more examples here: Delete cookies programmatically · Issue #3312 · postmanlabs/postman-app-support
const jar = pm.cookies.jar();
jar.clear(pm.request.url, function (error) {
// error - <Error>
});
const jar = pm.cookies.jar();
jar.getAll('http://example.com', function (error, cookies) {
// error - <Error>
// cookies - <PostmanCookieList>
// PostmanCookieList: https://www.postmanlabs.com/postman-collection/CookieList.html
});
const jar = pm.cookies.jar();
jar.get('http://example.com', 'token', function (error, value) {
// error - <Error>
// value - <String>
});
Just an idea or a hack.
div {_x000D_
background-color: blue;_x000D_
width: 10%;_x000D_
transition: background-color 0.5s, width 0.5s;_x000D_
font-size: 0;_x000D_
}_x000D_
_x000D_
div:hover {_x000D_
width: 20%;_x000D_
background-color: red;_x000D_
}_x000D_
_x000D_
img {_x000D_
width: 100%;_x000D_
height: auto;_x000D_
visibility: hidden;_x000D_
}<div>_x000D_
<!-- use an image with target aspect ratio. sample is a square -->_x000D_
<img src="http://i.imgur.com/9OPnZNk.png" />_x000D_
</div>A very very good document regarding this topic is Troubleshooting Guide for Java from (originally) Sun. See the chapter "Troubleshooting System Crashes" for information about hs_err_pid* Files.
See Appendix C - Fatal Error Log
Per the guide, by default the file will be created in the working directory of the process if possible, or in the system temporary directory otherwise. A specific location can be chosen by passing in the -XX:ErrorFile product flag. It says:
If the -XX:ErrorFile= file flag is not specified, the system attempts to create the file in the working directory of the process. In the event that the file cannot be created in the working directory (insufficient space, permission problem, or other issue), the file is created in the temporary directory for the operating system.
Video with fall back:
try {
video.srcObject = mediaSource;
} catch (error) {
video.src = URL.createObjectURL(mediaSource);
}
video.play();
From: https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/srcObject
May be this is useful to you.
//Method writes a string to a text file
-(void) writeToTextFile{
//get the documents directory:
NSArray *paths = NSSearchPathForDirectoriesInDomains
(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
//make a file name to write the data to using the documents directory:
NSString *fileName = [NSString stringWithFormat:@"%@/textfile.txt",
documentsDirectory];
//create content - four lines of text
NSString *content = @"One\nTwo\nThree\nFour\nFive";
//save content to the documents directory
[content writeToFile:fileName
atomically:NO
encoding:NSUTF8StringEncoding
error:nil];
}
//Method retrieves content from documents directory and
//displays it in an alert
-(void) displayContent{
//get the documents directory:
NSArray *paths = NSSearchPathForDirectoriesInDomains
(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
//make a file name to write the data to using the documents directory:
NSString *fileName = [NSString stringWithFormat:@"%@/textfile.txt",
documentsDirectory];
NSString *content = [[NSString alloc] initWithContentsOfFile:fileName
usedEncoding:nil
error:nil];
//use simple alert from my library (see previous post for details)
[ASFunctions alert:content];
[content release];
}
This is the complete way to omit unneeded redirects, too ;)
These rules are intended to be used in .htaccess files, as a RewriteRule in a *:80 VirtualHost entry needs no Conditions.
RewriteEngine on
RewriteCond %{HTTPS} off [OR]
RewriteCond %{HTTP:X-Forwarded-Proto} !https
RewriteRule ^/(.*) https://%{HTTP_HOST}/$1 [NC,R=301,L]
Eplanations:
RewriteEngine on
==> enable the engine at all
RewriteCond %{HTTPS} off [OR]
==> match on non-https connections, or (not setting [OR] would cause an implicit AND !)
RewriteCond %{HTTP:X-Forwarded-Proto} !https
==> match on forwarded connections (proxy, loadbalancer, etc.) without https
RewriteRule ^/(.*) https://%{HTTP_HOST}/$1 [NC,R=301,L]
==> if one of both Conditions match, do the rewrite of the whole URL, sending a 301 to have this 'learned' by the client (some do, some don't) and the L for the last rule.
The other answers are several years old (and do not work for Windows Phone 8.1) so I figured I'd drop in another option. I used this to parse an RSS response for a Windows Phone app:
XDocument xdoc = new XDocument();
xdoc = XDocument.Parse(xml_string);
In my case because of using anchor link for CSS popup I've used this way:
Just save the pageYOffset first thing on click and then set the ScrollTop to that:
$(document).on('click','yourtarget',function(){
var st=window.pageYOffset;
$('html, body').animate({
'scrollTop' : st
});
});
As an add on to the other answers, I added an alias to do it all in one step, with a more familiar *nix move command feel. Argument 1 is the old tag name, argument 2 is the new tag name.
[alias]
renameTag = "!sh -c 'set -e;git tag $2 $1; git tag -d $1;git push origin :refs/tags/$1;git push --tags' -"
Usage:
git renametag old new
/html/body/table/tbody/tr[9]/td[1]
In Chrome (possible Safari too) you can inspect an element, then right click on the tag you want to get the xpath for, then you can copy the xpath to select that element.
use the HTML control with a runat server attribute
<input id="FileInput" runat="server" type="file" />
Then in asp.net Codebehind
FileInput.PostedFile.SaveAs("DestinationPath");
There are also some 3'rd party options that will show progress if you intrested
If you set CURLOPT_RETURNTRANSFER to true or 1 then the return value from curl_exec will be the actual result from the successful operation. In other words it will not return TRUE on success. Although it will return FALSE on failure.
As described in the Return Values section of curl-exec PHP manual page: http://php.net/manual/function.curl-exec.php
You should enable the CURLOPT_FOLLOWLOCATION option for redirects but this would be a problem if your server is in safe_mode and/or open_basedir is in effect which can cause issues with curl as well.
You can use the response.text to write to a file:
import requests
files = {'f': ('1.pdf', open('1.pdf', 'rb'))}
response = requests.post("https://pdftables.com/api?&format=xlsx-single",files=files)
response.raise_for_status() # ensure we notice bad responses
file = open("resp_text.txt", "w")
file.write(response.text)
file.close()
file = open("resp_content.txt", "w")
file.write(response.text)
file.close()
You should not execute resource intensive tasks in the main thread. It will make the UI unresponsive and you will get an ANR. It seems like you will be doing resource intensive stuff and want the user to see the ProgressDialog. You can take a look at http://developer.android.com/reference/android/os/AsyncTask.html to do resource intensive tasks. It also shows you how to use a ProgressDialog.