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<?php |
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declare(strict_types=1); |
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namespace Setono\MessageSchedulerBundle\Message\Handler; |
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use const DATE_ATOM; |
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use Doctrine\Persistence\ManagerRegistry; |
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use Doctrine\Persistence\ObjectManager; |
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use InvalidArgumentException; |
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use RuntimeException; |
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use Safe\DateTime; |
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use function Safe\ini_set; |
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use function Safe\sprintf; |
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use Setono\MessageSchedulerBundle\Entity\ScheduledMessage; |
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use Setono\MessageSchedulerBundle\Message\Command\DispatchScheduledMessage; |
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use Setono\MessageSchedulerBundle\Repository\ScheduledMessageRepositoryInterface; |
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use Setono\MessageSchedulerBundle\Workflow\ScheduledMessageWorkflow; |
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use Symfony\Component\Messenger\Envelope; |
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use Symfony\Component\Messenger\Exception\UnrecoverableMessageHandlingException; |
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use Symfony\Component\Messenger\Handler\MessageHandlerInterface; |
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use Symfony\Component\Messenger\RoutableMessageBus; |
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use Symfony\Component\Messenger\Stamp\BusNameStamp; |
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use Symfony\Component\Workflow\Registry; |
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use Throwable; |
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final class DispatchMessageHandler implements MessageHandlerInterface |
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{ |
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private ?ObjectManager $objectManager = null; |
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private RoutableMessageBus $routableMessageBus; |
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private ScheduledMessageRepositoryInterface $scheduledMessageRepository; |
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private Registry $workflowRegistry; |
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private ManagerRegistry $managerRegistry; |
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public function __construct( |
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RoutableMessageBus $routableMessageBus, |
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ScheduledMessageRepositoryInterface $scheduledMessageRepository, |
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Registry $workflowRegistry, |
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ManagerRegistry $managerRegistry |
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) { |
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$this->routableMessageBus = $routableMessageBus; |
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$this->scheduledMessageRepository = $scheduledMessageRepository; |
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$this->workflowRegistry = $workflowRegistry; |
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$this->managerRegistry = $managerRegistry; |
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} |
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public function __invoke(DispatchScheduledMessage $message): void |
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{ |
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/** @var ScheduledMessage|null $scheduledMessage */ |
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$scheduledMessage = $this->scheduledMessageRepository->find($message->getScheduledMessageId()); |
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if (null === $scheduledMessage) { |
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throw new UnrecoverableMessageHandlingException(sprintf( |
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'The scheduled message with id, "%s" does not exist', $message->getScheduledMessageId() |
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)); |
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} |
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$scheduledMessage->resetErrors(); |
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$now = new DateTime(); |
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if ($scheduledMessage->getDispatchAt() > $now) { |
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throw new UnrecoverableMessageHandlingException(sprintf( |
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'The scheduled message with id, "%s" is not eligible to be dispatched yet. The dispatch timestamp is %s, while the time now is %s', |
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$message->getScheduledMessageId(), $scheduledMessage->getDispatchAt()->format(DATE_ATOM), $now->format(DATE_ATOM) |
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)); |
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} |
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$workflow = $this->workflowRegistry->get($scheduledMessage, ScheduledMessageWorkflow::NAME); |
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if (!$workflow->can($scheduledMessage, ScheduledMessageWorkflow::TRANSITION_PROCESS)) { |
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throw new UnrecoverableMessageHandlingException(sprintf( |
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'The scheduled message with id, "%s" could not enter the transition "%s". The state was: "%s"', |
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$message->getScheduledMessageId(), ScheduledMessageWorkflow::TRANSITION_PROCESS, $scheduledMessage->getState() |
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)); |
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} |
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$workflow->apply($scheduledMessage, ScheduledMessageWorkflow::TRANSITION_PROCESS); |
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$objectManager = $this->getObjectManager($scheduledMessage); |
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$objectManager->flush(); |
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$messageToBeDispatched = $this->unserialize($scheduledMessage->getSerializedMessage()); |
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$stamps = []; |
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$bus = $scheduledMessage->getBus(); |
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if (null !== $bus) { |
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$stamps[] = new BusNameStamp($bus); |
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} |
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try { |
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// notice that this try-catch block won't handle (and therefore log) any errors happening, |
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// if the $messageToBeDispatched is routed on an async transport |
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$this->routableMessageBus->dispatch(new Envelope($messageToBeDispatched, $stamps)); |
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$workflow->apply($scheduledMessage, ScheduledMessageWorkflow::TRANSITION_SUCCEED); |
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$objectManager->flush(); |
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} catch (Throwable $e) { |
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$originalException = $e; |
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$workflow->apply($scheduledMessage, ScheduledMessageWorkflow::TRANSITION_FAIL); |
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do { |
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$scheduledMessage->addError($e->getMessage()); |
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$e = $e->getPrevious(); |
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} while (null !== $e); |
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$objectManager->flush(); |
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throw $originalException; |
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} |
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} |
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/** |
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* This code is taken from \Symfony\Component\Messenger\Transport\Serialization\PhpSerializer |
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* |
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* todo extract to a separate library |
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*/ |
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private function unserialize(string $str): object |
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{ |
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$signalingException = new InvalidArgumentException(sprintf('Could not decode message using PHP serialization: %s.', $str)); |
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$prevUnserializeHandler = ini_set('unserialize_callback_func', self::class . '::handleUnserializeCallback'); |
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/** |
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* @psalm-suppress MissingClosureParamType |
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* @psalm-suppress MissingClosureReturnType |
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*/ |
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$prevErrorHandler = set_error_handler(function ($type, $msg, $file, $line, $context = []) use (&$prevErrorHandler, $signalingException) { |
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if (__FILE__ === $file) { |
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throw $signalingException; |
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} |
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return null !== $prevErrorHandler ? $prevErrorHandler($type, $msg, $file, $line, $context) : false; |
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}); |
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try { |
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/** @var object $messageToBeDispatched */ |
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$messageToBeDispatched = unserialize($str, [ |
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'allowed_classes' => true, |
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]); |
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} finally { |
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restore_error_handler(); |
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ini_set('unserialize_callback_func', $prevUnserializeHandler); |
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} |
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return $messageToBeDispatched; |
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} |
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/** |
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* @internal |
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*/ |
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public static function handleUnserializeCallback(string $class): void |
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{ |
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throw new InvalidArgumentException(sprintf('Message class "%s" not found during unserialization.', $class)); |
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} |
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private function getObjectManager(object $object): ObjectManager |
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{ |
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if (null === $this->objectManager) { |
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$class = get_class($object); |
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$manager = $this->managerRegistry->getManagerForClass($class); |
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if (null === $manager) { |
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throw new RuntimeException(sprintf('No object manager associated with the class, %s', $class)); |
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} |
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$this->objectManager = $manager; |
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} |
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return $this->objectManager; |
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} |
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} |
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Setono /
MessageSchedulerBundle
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