69 lines
2.1 KiB
PHP
69 lines
2.1 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;
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use Psr\Container\ContainerInterface;
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use Symfony\Component\Messenger\Exception\InvalidArgumentException;
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use Symfony\Component\Messenger\Stamp\BusNameStamp;
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/**
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* Bus of buses that is routable using a BusNameStamp.
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*
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* This is useful when passed to Worker: messages received
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* from the transport can be sent to the correct bus.
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*
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* @author Ryan Weaver <ryan@symfonycasts.com>
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*/
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class RoutableMessageBus implements MessageBusInterface
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{
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private $busLocator;
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private $fallbackBus;
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public function __construct(ContainerInterface $busLocator, ?MessageBusInterface $fallbackBus = null)
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{
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$this->busLocator = $busLocator;
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$this->fallbackBus = $fallbackBus;
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}
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public function dispatch(object $envelope, array $stamps = []): Envelope
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{
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if (!$envelope instanceof Envelope) {
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throw new InvalidArgumentException('Messages passed to RoutableMessageBus::dispatch() must be inside an Envelope.');
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}
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/** @var BusNameStamp|null $busNameStamp */
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$busNameStamp = $envelope->last(BusNameStamp::class);
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if (null === $busNameStamp) {
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if (null === $this->fallbackBus) {
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throw new InvalidArgumentException('Envelope is missing a BusNameStamp and no fallback message bus is configured on RoutableMessageBus.');
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}
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return $this->fallbackBus->dispatch($envelope, $stamps);
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}
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return $this->getMessageBus($busNameStamp->getBusName())->dispatch($envelope, $stamps);
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}
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/**
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* @internal
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*/
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public function getMessageBus(string $busName): MessageBusInterface
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{
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if (!$this->busLocator->has($busName)) {
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throw new InvalidArgumentException(sprintf('Bus named "%s" does not exist.', $busName));
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}
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return $this->busLocator->get($busName);
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}
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}
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