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<?php |
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/** |
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* GpsLab component. |
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* |
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* @author Peter Gribanov <[email protected]> |
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* @copyright Copyright (c) 2011, Peter Gribanov |
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* @license http://opensource.org/licenses/MIT |
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*/ |
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namespace GpsLab\Bundle\DomainEvent\Event\Listener; |
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use Doctrine\Common\EventSubscriber; |
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use Doctrine\Common\Persistence\Proxy; |
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use Doctrine\ORM\Event\PostFlushEventArgs; |
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use Doctrine\ORM\Events; |
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use GpsLab\Domain\Event\Aggregator\AggregateEvents; |
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use GpsLab\Domain\Event\Bus\EventBus; |
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class DomainEventPublisher implements EventSubscriber |
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{ |
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/** |
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* @var EventBus |
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*/ |
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private $bus; |
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/** |
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* @var bool |
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*/ |
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private $enable; |
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/** |
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* @param EventBus $bus |
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* @param bool $enable |
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*/ |
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public function __construct(EventBus $bus, $enable) |
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{ |
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$this->bus = $bus; |
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$this->enable = $enable; |
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} |
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/** |
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* @return array |
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*/ |
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public function getSubscribedEvents() |
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{ |
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if (!$this->enable) { |
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return []; |
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} |
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return [ |
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Events::postFlush, |
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]; |
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} |
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/** |
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* @param PostFlushEventArgs $args |
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*/ |
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public function postFlush(PostFlushEventArgs $args) |
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{ |
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$map = $args->getEntityManager()->getUnitOfWork()->getIdentityMap(); |
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// flush only if has domain events |
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// it necessary for fix recursive handle flush |
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if ($this->publish($map)) { |
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$args->getEntityManager()->flush(); |
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} |
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} |
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/** |
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* @param array $map |
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* |
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* @return bool |
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*/ |
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private function publish(array $map) |
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{ |
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$has_events = false; |
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foreach ($map as $entities) { |
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foreach ($entities as $entity) { |
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// ignore Doctrine proxy classes |
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// proxy class can't have a domain events |
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if ($entity instanceof Proxy || !($entity instanceof AggregateEvents)) { |
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break; |
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} |
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foreach ($entity->pullEvents() as $event) { |
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$this->bus->publish($event); |
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$has_events = true; |
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} |
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} |
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} |
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return $has_events; |
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} |
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} |
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gpslab /
domain-event-bundle
