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| <?php | |
| use Symfony\Component\Messenger\MessageBusInterface; | |
| final class Bus | |
| { | |
| // The trait contains a `handle` method | |
| // that dispatch the message and return the result. | |
| use Symfony\Component\Messenger\HandleTrait; | |
| private MessageBusInterface $messageBus; | |
| /** | |
| * @var iterable<PreHandlerInterface> | |
| * All classes that implements PreHandlerInterface | |
| */ | |
| private iterable $preHandlers; | |
| /** | |
| * @var iterable<PostHandlerInterface> | |
| * All classes that implements PostHandlerInterface | |
| */ | |
| private iterable $postHandlers; | |
| public function __construct( | |
| iterable $preHandlers, | |
| iterable $postHandlers, | |
| MessageBusInterface $messageBus) { | |
| $this->preHandlers = $preHandlers; | |
| $this->postHandlers = $postHandlers; | |
| $this->messageBus = $messageBus; | |
| } | |
| public function dispatch(object $message) | |
| { | |
| // We iterate on each instance of `PreHandlerInterface` | |
| // and check if the message is supported | |
| // if yes, we call `preHandle` | |
| /** @var PreHandlerInterface $preHandler */ | |
| foreach ($this->preHandlers as $preHandler) { | |
| if ($preHandler->supports($message)) { | |
| $preHandler->preHandle($message); | |
| } | |
| } | |
| // We dispatch the message so it's handle by the handler | |
| $result = $this->handle($message); | |
| // We iterate on each instance of `PostHandlerInterface` | |
| // and check if the message is supported | |
| // if yes, we call `postHandle` with the $message and the $result as argument | |
| /** @var PostHandlerInterface $postHandler */ | |
| foreach ($this->postHandlers as $postHandler) { | |
| if ($postHandler->supports($message)) { | |
| $postHandler->postHandle($message, $result); | |
| } | |
| } | |
| } | |
| } |
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