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<?php |
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declare(strict_types=1); |
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namespace JMS\Serializer\EventDispatcher; |
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use JMS\Serializer\Exception\InvalidArgumentException; |
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/** |
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* Light-weight event dispatcher. |
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* |
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* This implementation focuses primarily on performance, and dispatching |
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* events for certain classes. It is not a general purpose event dispatcher. |
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* |
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* @author Johannes M. Schmitt <[email protected]> |
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*/ |
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class EventDispatcher implements EventDispatcherInterface |
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{ |
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/** |
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* @var array |
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*/ |
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private $listeners = []; |
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/** |
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* ClassListeners cache |
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* |
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* @var array |
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*/ |
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private $classListeners = []; |
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public static function getDefaultMethodName(string $eventName): string |
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{ |
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return 'on' . str_replace(['_', '.'], '', $eventName); |
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} |
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/** |
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* Sets the listeners. |
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* |
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* @param array $listeners |
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*/ |
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public function setListeners(array $listeners): void |
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{ |
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$this->listeners = $listeners; |
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$this->classListeners = []; |
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} |
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342 |
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public function getListeners(): array |
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{ |
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return $this->listeners; |
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} |
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342 |
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342 |
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/** |
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* {@inheritdoc} |
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*/ |
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public function addListener(string $eventName, $callable, ?string $class = null, ?string $format = null, ?string $interface = null): void |
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{ |
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$this->listeners[$eventName][] = [$callable, $class, $format, $interface]; |
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unset($this->classListeners[$eventName]); |
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} |
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229 |
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public function addSubscriber(EventSubscriberInterface $subscriber): void |
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{ |
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foreach ($subscriber->getSubscribedEvents() as $eventData) { |
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if (!isset($eventData['event'])) { |
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throw new InvalidArgumentException(sprintf('Each event must have a "event" key.')); |
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} |
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$method = $eventData['method'] ?? self::getDefaultMethodName($eventData['event']); |
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$class = $eventData['class'] ?? null; |
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$format = $eventData['format'] ?? null; |
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$interface = $eventData['interface'] ?? null; |
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$this->listeners[$eventData['event']][] = [[$subscriber, $method], $class, $format, $interface]; |
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unset($this->classListeners[$eventData['event']]); |
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} |
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} |
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5 |
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public function hasListeners(string $eventName, string $class, string $format): bool |
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{ |
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if (!isset($this->listeners[$eventName])) { |
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return false; |
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} |
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if (!isset($this->classListeners[$eventName][$class][$format])) { |
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$this->classListeners[$eventName][$class][$format] = $this->initializeListeners($eventName, $class, $format); |
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} |
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return !!$this->classListeners[$eventName][$class][$format]; |
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} |
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225 |
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public function dispatch(string $eventName, string $class, string $format, Event $event): void |
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{ |
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if (!isset($this->listeners[$eventName])) { |
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return; |
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} |
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$object = $event instanceof ObjectEvent ? $event->getObject() : null; |
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$realClass = is_object($object) ? get_class($object) : ''; |
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$objectClass = $realClass !== $class ? $realClass . $class : $class; |
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if (!isset($this->classListeners[$eventName][$objectClass][$format])) { |
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$this->classListeners[$eventName][$objectClass][$format] = $this->initializeListeners($eventName, $class, $format); |
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} |
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foreach ($this->classListeners[$eventName][$objectClass][$format] as $listener) { |
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if (!empty($listener[3]) && !($object instanceof $listener[3])) { |
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continue; |
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} |
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230 |
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\call_user_func($listener[0], $event, $eventName, $class, $format, $this); |
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if ($event->isPropagationStopped()) { |
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break; |
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} |
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} |
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} |
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3 |
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/** |
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* @return array An array of listeners |
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*/ |
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protected function initializeListeners(string $eventName, string $loweredClass, string $format): array |
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{ |
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$listeners = []; |
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foreach ($this->listeners[$eventName] as $listener) { |
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if (null !== $listener[1] && $loweredClass !== $listener[1]) { |
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continue; |
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} |
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if (null !== $listener[2] && $format !== $listener[2]) { |
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continue; |
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} |
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$listeners[] = $listener; |
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} |
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return $listeners; |
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} |
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} |
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schmittjoh /
serializer
