80 lines
2.8 KiB
PHP
80 lines
2.8 KiB
PHP
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Messenger\Middleware;
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use Psr\Log\LoggerAwareTrait;
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use Psr\Log\NullLogger;
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use Symfony\Component\EventDispatcher\Event;
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use Symfony\Component\EventDispatcher\LegacyEventDispatcherProxy;
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use Symfony\Component\Messenger\Envelope;
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use Symfony\Component\Messenger\Event\SendMessageToTransportsEvent;
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use Symfony\Component\Messenger\Stamp\ReceivedStamp;
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use Symfony\Component\Messenger\Stamp\SentStamp;
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use Symfony\Component\Messenger\Transport\Sender\SendersLocatorInterface;
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use Symfony\Contracts\EventDispatcher\EventDispatcherInterface;
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/**
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* @author Samuel Roze <samuel.roze@gmail.com>
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* @author Tobias Schultze <http://tobion.de>
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*/
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class SendMessageMiddleware implements MiddlewareInterface
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{
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use LoggerAwareTrait;
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private $sendersLocator;
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private $eventDispatcher;
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public function __construct(SendersLocatorInterface $sendersLocator, EventDispatcherInterface $eventDispatcher = null)
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{
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$this->sendersLocator = $sendersLocator;
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$this->eventDispatcher = class_exists(Event::class) ? LegacyEventDispatcherProxy::decorate($eventDispatcher) : $eventDispatcher;
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$this->logger = new NullLogger();
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}
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/**
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* {@inheritdoc}
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*/
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public function handle(Envelope $envelope, StackInterface $stack): Envelope
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{
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$context = [
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'class' => \get_class($envelope->getMessage()),
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];
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$sender = null;
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if ($envelope->all(ReceivedStamp::class)) {
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// it's a received message, do not send it back
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$this->logger->info('Received message {class}', $context);
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} else {
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$shouldDispatchEvent = true;
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foreach ($this->sendersLocator->getSenders($envelope) as $alias => $sender) {
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if (null !== $this->eventDispatcher && $shouldDispatchEvent) {
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$event = new SendMessageToTransportsEvent($envelope);
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$this->eventDispatcher->dispatch($event);
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$envelope = $event->getEnvelope();
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$shouldDispatchEvent = false;
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}
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$this->logger->info('Sending message {class} with {alias} sender using {sender}', $context + ['alias' => $alias, 'sender' => \get_class($sender)]);
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$envelope = $sender->send($envelope->with(new SentStamp(\get_class($sender), \is_string($alias) ? $alias : null)));
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}
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}
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if (null === $sender) {
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return $stack->next()->handle($envelope, $stack);
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}
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// message should only be sent and not be handled by the next middleware
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return $envelope;
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}
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}
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