Merges an observable sequence of observables into an observable sequence.
| public static mergeAll ( rx\ObservableInterface $sources ) : Rx\Observable\AnonymousObservable | ||
| $sources | rx\ObservableInterface | |
| return | Rx\Observable\AnonymousObservable | |
/**
* @test
*/
public function it_passes_on_completed_from_sources()
{
$ys = $this->createHotObservable(array(onCompleted(250)));
$results = $this->scheduler->startWithCreate(function () use($ys) {
return Observable::mergeAll($ys);
});
$this->assertMessages(array(onCompleted(250)), $results->getMessages());
$this->assertSubscriptions(array(subscribe(200, 250)), $ys->getSubscriptions());
}
/**
* Squirt the metrics over UDP
*
* @param array $data Incoming Data
* @param float|1 $sampleRate the rate (0-1) for sampling.
* @param array|string $tags Key Value array of Tag => Value, or single tag as string
*
* @return Observable
**/
public function send($data, $sampleRate = 1, array $tags = null)
{
// sampling
$sampledData = array();
if ($sampleRate < 1) {
foreach ($data as $stat => $value) {
if (mt_rand() / mt_getrandmax() <= $sampleRate) {
$sampledData[] = [$stat, "{$value}|@{$sampleRate}"];
}
}
} else {
foreach ($data as $stat => $value) {
$sampledData[] = [$stat, $value];
}
}
if (empty($sampledData)) {
return Observable::emptyObservable();
}
$observableSequence = Observable::fromArray($sampledData)->map(function ($d) use($tags) {
$stat = $d[0];
$value = $d[1];
if ($tags !== null && is_array($tags) && count($tags) > 0) {
$value .= '|';
foreach ($tags as $tag_key => $tag_val) {
if (is_array($tag_val)) {
$flattenTagVal = array();
array_walk_recursive($array, function ($a) use(&$return) {
$flattenTagVal[] = $a;
});
$tag_val = implode("\n", $flattenTagVal);
}
$value .= '#' . $tag_key . ':' . $tag_val . ',';
}
$value = substr($value, 0, -1);
} elseif (isset($tags) && !empty($tags)) {
$value .= '|#' . $tags;
}
return $this->reportMetric("{$stat}:{$value}");
});
return Observable::mergeAll($observableSequence);
}
<?php
require_once __DIR__ . '/../bootstrap.php';
$loop = React\EventLoop\Factory::create();
$scheduler = new Rx\Scheduler\EventLoopScheduler($loop);
$sources = Rx\Observable::range(0, 3)->map(function ($x) {
return Rx\Observable::range($x, 3);
});
$merged = \Rx\Observable::mergeAll($sources);
$disposable = $merged->subscribe($stdoutObserver, $scheduler);
$loop->run();
<?php
use EventLoop\EventLoop;
use Rx\Observable;
use Rx\Scheduler\EventLoopScheduler;
use Rxnet\Observer\StdOutObserver;
require __DIR__ . "/../../vendor/autoload.php";
$loop = EventLoop::getLoop();
/*
* If you have no statsd server, you can run the following command to listen for UDP traffic on port 8125 :
* $> socat - udp4-listen:8125,reuseaddr,fork
*/
$statsd = new \Rxnet\Statsd\Statsd("localhost", 8125);
$req1 = $statsd->gauge("database.connections", 42);
$req2 = $statsd->increment("database.query.count");
$req3 = $statsd->histogram("database.query.time", 0.42);
Observable::mergeAll(Observable::fromArray([$req1, $req2, $req3]))->subscribe(new StdOutObserver(), new EventLoopScheduler($loop));
$loop->run();
