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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) 2016, Peter Gribanov |
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* @license http://opensource.org/licenses/MIT |
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*/ |
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namespace GpsLab\Domain\Event\Bus; |
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use GpsLab\Domain\Event\Aggregator\AggregateEventsInterface; |
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use GpsLab\Domain\Event\EventInterface; |
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use GpsLab\Domain\Event\Listener\ListenerCollection; |
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use GpsLab\Domain\Event\Listener\ListenerInterface; |
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use GpsLab\Domain\Event\Queue\EventQueueInterface; |
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class QueueEventBus implements EventBusInterface |
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{ |
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/** |
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* @var EventQueueInterface |
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*/ |
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private $queue; |
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/** |
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* @var EventBusInterface |
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*/ |
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private $publisher_bus; |
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/** |
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* @param EventQueueInterface $queue |
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* @param EventBusInterface $publisher_bus |
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*/ |
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public function __construct(EventQueueInterface $queue, EventBusInterface $publisher_bus) |
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{ |
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$this->queue = $queue; |
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$this->publisher_bus = $publisher_bus; |
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} |
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/** |
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* Publishes the event $event to every EventListener that wants to. |
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* |
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* @param EventInterface $event |
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*/ |
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public function publish(EventInterface $event) |
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{ |
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$this->queue->push($event); |
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} |
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/** |
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* @param AggregateEventsInterface $aggregator |
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*/ |
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public function pullAndPublish(AggregateEventsInterface $aggregator) |
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{ |
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foreach ($aggregator->pullEvents() as $event) { |
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$this->publish($event); |
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} |
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} |
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/** |
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* Publishes the events from event queue to the publisher bus. |
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*/ |
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public function publishFromQueue() |
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{ |
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while (true) { |
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$event = $this->queue->pop(); |
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if (!($event instanceof EventInterface)) { // it's a end of queue |
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break; |
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} |
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$this->publisher_bus->publish($event); |
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} |
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} |
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/** |
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* @return ListenerInterface[]|ListenerCollection |
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*/ |
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public function getRegisteredEventListeners() |
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{ |
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return $this->publisher_bus->getRegisteredEventListeners(); |
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} |
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} |
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gpslab /
domain-event
