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<?php |
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namespace NilPortugues\MessageBus\EventBus\Translator; |
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use NilPortugues\MessageBus\EventBus\Contracts\Event; |
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use NilPortugues\MessageBus\EventBus\Contracts\EventHandler; |
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use NilPortugues\MessageBus\EventBus\Contracts\EventHandlerPriority; |
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use NilPortugues\MessageBus\EventBus\Contracts\EventTranslator; |
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use RuntimeException; |
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class EventFullyQualifiedClassNameStrategy implements EventTranslator |
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{ |
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/** |
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* @var array |
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*/ |
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protected $listeners = []; |
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/** |
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* An array of strings representing the FQN of the Event Handler. |
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* |
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* @param string[] $handlers |
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*/ |
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public function __construct(array $handlers) |
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{ |
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foreach ($handlers as $handler) { |
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if (false === class_exists($handler, true)) { |
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throw new RuntimeException( |
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sprintf('Class %s does not exist.', $handler) |
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); |
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} |
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if (false === in_array(EventHandler::class, class_implements($handler, true))) { |
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throw new RuntimeException( |
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sprintf('Class %s does not implement the %s interface.', $handler, EventHandler::class) |
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); |
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} |
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$priority = EventHandlerPriority::LOW_PRIORITY; |
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if (false !== in_array(EventHandlerPriority::class, class_implements($handler, true))) { |
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/* @var EventHandlerPriority $handler */ |
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$priority = $handler::priority(); |
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} |
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/* @var EventHandler $handler */ |
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$this->listeners[$handler::subscribedTo()][$priority][] = $handler; |
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} |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function handlerName(Event $event) : array |
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{ |
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$eventClass = get_class($event); |
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if (empty($this->listeners[$eventClass])) { |
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throw new RuntimeException(sprintf('Event %s has no EventHandler defined.', $eventClass)); |
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} |
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ksort($this->listeners[$eventClass], SORT_NUMERIC); |
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return $this->listeners[$eventClass]; |
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} |
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} |
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PHPMessageBus /
messagebus
