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<?php declare(strict_types=1); |
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namespace ApiClients\Client\Pusher; |
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use React\Dns\Resolver\Resolver; |
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use React\EventLoop\LoopInterface; |
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use Rx\DisposableInterface; |
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use Rx\Observable; |
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use Rx\ObserverInterface; |
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use Rx\Subject\ReplaySubject; |
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use Rx\Subject\Subject; |
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use Rx\Websocket\Client; |
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/** |
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* Class WebSocket - WebSocket wrapper that queues messages while the connection is being established. |
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*/ |
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final class WebSocket extends Subject |
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{ |
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private $ws; |
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private $sendSubject; |
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/** |
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* @internal |
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* @param Observable $ws |
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* @throws \InvalidArgumentException |
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*/ |
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public function __construct(Observable $ws) |
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{ |
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$this->sendSubject = new ReplaySubject(); |
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$this->ws = $ws; |
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} |
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public static function createFactory(string $url, bool $useMessageObject = false, array $subProtocols = [], LoopInterface $loop = null, Resolver $resolver = null): Subject |
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{ |
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return new self( |
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new Client($url, $useMessageObject, $subProtocols, $loop, $resolver) |
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); |
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} |
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public function onNext($value) |
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{ |
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$this->sendSubject->onNext($value); |
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} |
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protected function _subscribe(ObserverInterface $observer): DisposableInterface |
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{ |
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return $this->ws |
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->do(function (Subject $ms) { |
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// Replay buffered messages onto the MessageSubject |
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$this->sendSubject->subscribe($ms); |
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// Now that the connection has been established, use the message subject directly. |
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$this->sendSubject = $ms; |
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}) |
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->finally(function () { |
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// The connection has closed, so start buffering messages util it reconnects. |
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$this->sendSubject = new ReplaySubject(); |
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}) |
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->switch() |
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->repeatDelay() |
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->subscribe($observer); |
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} |
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} |
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php-api-clients /
pusher
Let’s assume that you have a directory layout like this:
. |-- OtherDir | |-- Bar.php | `-- Foo.php `-- SomeDir `-- Foo.phpand let’s assume the following content of
Bar.php:If both files
OtherDir/Foo.phpandSomeDir/Foo.phpare loaded in the same runtime, you will see a PHP error such as the following:PHP Fatal error: Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.phpHowever, as
OtherDir/Foo.phpdoes not necessarily have to be loaded and the error is only triggered if it is loaded beforeOtherDir/Bar.php, this problem might go unnoticed for a while. In order to prevent this error from surfacing, you must import the namespace with a different alias: