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<?php |
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namespace Jellyfish\Event; |
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use Jellyfish\Event\Exception\NotSupportedTypeException; |
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class EventDispatcher implements EventDispatcherInterface |
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{ |
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/** |
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* @var \Jellyfish\Event\EventQueueProducerInterface |
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*/ |
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protected $eventQueueProducer; |
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/** |
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* @var array |
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*/ |
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protected $listeners = [ |
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EventListenerInterface::TYPE_SYNC => [], |
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EventListenerInterface::TYPE_ASYNC => [] |
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]; |
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/** |
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* @param \Jellyfish\Event\EventQueueProducerInterface $eventQueueProducer |
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*/ |
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public function __construct( |
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EventQueueProducerInterface $eventQueueProducer |
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) { |
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$this->eventQueueProducer = $eventQueueProducer; |
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} |
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/** |
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* @param string $eventName |
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* @param \Jellyfish\Event\EventListenerInterface $listener |
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* |
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* @return \Jellyfish\Event\EventDispatcherInterface |
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*/ |
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public function addListener(string $eventName, EventListenerInterface $listener): EventDispatcherInterface |
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{ |
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$type = $listener->getType(); |
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if (!\array_key_exists($eventName, $this->listeners[$type])) { |
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$this->listeners[$type][$eventName] = []; |
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} |
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$this->listeners[$type][$eventName][$listener->getIdentifier()] = $listener; |
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return $this; |
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} |
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/** |
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* @param string $eventName |
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* @param \Jellyfish\Event\EventListenerInterface $listener |
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* |
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* @return \Jellyfish\Event\EventDispatcherInterface |
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*/ |
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public function removeListener(string $eventName, EventListenerInterface $listener): EventDispatcherInterface |
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{ |
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$type = $listener->getType(); |
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$listenerIdentifier = $listener->getIdentifier(); |
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if (!$this->hasListener($type, $eventName, $listenerIdentifier)) { |
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return $this; |
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} |
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unset($this->listeners[$type][$eventName][$listenerIdentifier]); |
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return $this; |
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} |
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/** |
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* @param string $eventName |
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* @param \Jellyfish\Event\EventInterface $event |
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* |
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* @return \Jellyfish\Event\EventDispatcherInterface |
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*/ |
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public function dispatch(string $eventName, EventInterface $event): EventDispatcherInterface |
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{ |
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$this->dispatchSync($eventName, $event); |
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$this->dispatchAsync($eventName, $event); |
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return $this; |
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} |
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/** |
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* @param string $eventName |
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* @param \Jellyfish\Event\EventInterface $event |
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* |
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* @return \Jellyfish\Event\EventDispatcherInterface |
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*/ |
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protected function dispatchSync(string $eventName, EventInterface $event): EventDispatcherInterface |
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{ |
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$type = EventListenerInterface::TYPE_SYNC; |
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if (!\array_key_exists($eventName, $this->listeners[$type])) { |
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return $this; |
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} |
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foreach ($this->listeners[$type][$eventName] as $listener) { |
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/** @var \Jellyfish\Event\EventListenerInterface $listener */ |
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$listener->handle($event); |
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} |
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return $this; |
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} |
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/** |
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* @param string $eventName |
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* @param \Jellyfish\Event\EventInterface $event |
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* |
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* @return \Jellyfish\Event\EventDispatcherInterface |
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*/ |
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protected function dispatchAsync(string $eventName, EventInterface $event): EventDispatcherInterface |
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{ |
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$type = EventListenerInterface::TYPE_ASYNC; |
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if (!\array_key_exists($eventName, $this->listeners[$type])) { |
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return $this; |
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} |
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foreach ($this->listeners[$type][$eventName] as $listener) { |
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$this->eventQueueProducer->enqueueEvent($eventName, $event, $listener); |
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} |
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return $this; |
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} |
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/** |
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* @param string|null $type |
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* |
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* @return array |
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* |
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* @throws \Jellyfish\Event\Exception\NotSupportedTypeException |
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*/ |
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public function getListeners(string $type = null): array |
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{ |
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if ($type === null) { |
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return $this->listeners; |
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} |
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if (!\array_key_exists($type, $this->listeners)) { |
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throw new NotSupportedTypeException(\sprintf('Given type "%s" is not supported', $type)); |
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} |
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return $this->listeners[$type]; |
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} |
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/** |
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* @param string $type |
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* @param string $eventName |
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* @param string $listenerIdentifier |
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* |
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* @return \Jellyfish\Event\EventListenerInterface|null |
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*/ |
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public function getListener(string $type, string $eventName, string $listenerIdentifier): ?EventListenerInterface |
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{ |
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if (!$this->hasListener($type, $eventName, $listenerIdentifier)) { |
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return null; |
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} |
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return $this->listeners[$type][$eventName][$listenerIdentifier]; |
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} |
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/** |
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* @param string $type |
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* @param string $eventName |
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* @param string $listenerIdentifier |
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* |
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* @return bool |
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*/ |
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public function hasListener(string $type, string $eventName, string $listenerIdentifier): bool |
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{ |
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return \array_key_exists($eventName, $this->listeners[$type]) |
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&& \array_key_exists($listenerIdentifier, $this->listeners[$type][$eventName]); |
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} |
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} |
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jellyfishphp /
jellyfish
