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<?php |
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/** |
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* Copyright (c) 2017 Constantin Galbenu <[email protected]> |
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*/ |
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namespace Gica\Cqrs\Saga; |
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use Gica\Cqrs\Event\EventDispatcher; |
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use Gica\Cqrs\Event\EventSubscriber; |
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use Gica\Cqrs\Event\EventWithMetaData; |
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use Gica\Cqrs\EventProcessing\ConcurentEventProcessingException; |
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use Psr\Log\LoggerInterface; |
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class SagasOnlyOnceEventDispatcher implements EventDispatcher |
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{ |
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/** @var EventSubscriber */ |
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private $eventSubscriber; |
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/** |
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* @var SagaEventTrackerRepository |
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*/ |
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private $trackerRepository; |
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/** |
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* @var LoggerInterface |
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*/ |
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private $logger; |
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public function __construct( |
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SagaEventTrackerRepository $trackerRepository, |
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EventSubscriber $eventSubscriber, |
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LoggerInterface $logger |
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) |
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{ |
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$this->eventSubscriber = $eventSubscriber; |
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$this->trackerRepository = $trackerRepository; |
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$this->logger = $logger; |
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} |
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public function dispatchEvent(EventWithMetaData $eventWithMetadata) |
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{ |
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$listeners = $this->eventSubscriber->getListenersForEvent($eventWithMetadata->getEvent()); |
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foreach ($listeners as $listener) { |
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$metaData = $eventWithMetadata->getMetaData(); |
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if (is_array($listener)) { |
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$saga = $listener[0]; |
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$sagaId = get_class($saga); |
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if (!$this->trackerRepository->isEventProcessingAlreadyStarted($sagaId, $metaData->getEventId())) { |
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try { |
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$this->trackerRepository->startProcessingEvent($sagaId, $metaData->getEventId()); |
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call_user_func($listener, $eventWithMetadata->getEvent(), $metaData); |
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$this->trackerRepository->endProcessingEvent($sagaId, $metaData->getEventId()); |
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} catch (ConcurentEventProcessingException $exception) { |
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continue; |
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} catch (\Throwable $exception) { |
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$this->logger->error($exception->getMessage(), [ |
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'saga' => get_class($saga), |
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'event' => [ |
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'class' => get_class($eventWithMetadata->getEvent()), |
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'sequence' => $metaData->getSequence(), |
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'index' => $metaData->getIndex(), |
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], |
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'file' => $exception->getFile(), |
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'line' => $exception->getLine(), |
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]); |
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} |
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} |
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} |
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} |
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} |
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} |
xprt64 /
cqrs-es
