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<?php declare (strict_types=1); |
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namespace SmoothPhp\LaravelAdapter\QueuedEventDispatcher; |
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use Illuminate\Contracts\Config\Repository; |
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use Illuminate\Contracts\Queue\Queue; |
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use SmoothPhp\Contracts\EventDispatcher\EventDispatcher; |
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use SmoothPhp\Contracts\EventDispatcher\Subscriber; |
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use SmoothPhp\Contracts\Serialization\Serializer; |
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/** |
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* Class QueuedEventDispatcher |
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* @package SmoothPhp\LaravelAdapter\QueuedEventDispatcher |
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* @author Simon Bennett <[email protected]> |
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*/ |
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final class QueuedEventDispatcher implements EventDispatcher |
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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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* @var array |
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*/ |
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private $sorted = []; |
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/** @var Queue */ |
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private $queue; |
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/** @var Serializer */ |
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private $serializer; |
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/** @var Repository */ |
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private $config; |
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/** |
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* QueuedEventDispatcher constructor. |
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* @param Queue $queue |
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* @param Serializer $serializer |
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* @param Repository $config |
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*/ |
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public function __construct(Queue $queue, Serializer $serializer, Repository $config) |
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{ |
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$this->queue = $queue; |
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$this->serializer = $serializer; |
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$this->config = $config; |
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} |
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/** |
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* @param string $eventName |
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* @param array $arguments |
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* @param bool $runProjectionsOnly |
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*/ |
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public function dispatch($eventName, array $arguments, $runProjectionsOnly = false) |
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{ |
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if (!isset($this->listeners[$eventName])) { |
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return; |
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} |
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$listeners = $this->getListenersInOrder($eventName); |
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if (count($listeners) === 1) { |
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call_user_func_array($listeners[0], $arguments); |
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return; |
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} |
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foreach ($this->getListenersInOrder($eventName) as $listener) { |
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$this->queue->push( |
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QueuedEventHandler::class, |
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[ |
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'listener_class' => get_class($listener[0]), |
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'listener_method' => $listener[1], |
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'event' => $this->serializer->serialize($arguments[0]) |
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], |
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$this->config->get('cqrses.queue_name_handler', 'default') |
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); |
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} |
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} |
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/** |
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* @param string $eventName |
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* @param callable $callable |
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* @param int $priority |
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*/ |
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public function addListener($eventName, callable $callable, $priority = 0) |
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{ |
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$dotEventName = str_replace('\\', '.', $eventName); |
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$this->listeners[$dotEventName][$priority][] = $callable; |
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unset($this->sorted[$dotEventName]); |
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} |
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/** |
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* @param Subscriber $subscriber |
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* @return void |
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*/ |
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public function addSubscriber(Subscriber $subscriber) |
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{ |
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foreach ($subscriber->getSubscribedEvents() as $eventName => $params) { |
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if (is_string($params)) { |
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$this->addListener($eventName, [$subscriber, $params]); |
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} elseif (is_string($params[0])) { |
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$this->addListener($eventName, [$subscriber, $params[0]], isset($params[1]) ? $params[1] : 0); |
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} else { |
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foreach ($params as $listener) { |
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$this->addListener($eventName, [$subscriber, $listener[0]], isset($listener[1]) ? $listener[1] : 0); |
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} |
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} |
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} |
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} |
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/** |
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* @param $eventName |
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* @return array |
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*/ |
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protected function getListenersInOrder($eventName) |
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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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if (!isset($this->sorted[$eventName])) { |
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$this->sortListeners($eventName); |
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} |
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return $this->sorted[$eventName]; |
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} |
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/** |
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* Sorts the internal list of listeners for the given event by priority. |
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* |
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* @param string $eventName The name of the event. |
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*/ |
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private function sortListeners($eventName) |
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{ |
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$this->sorted[$eventName] = []; |
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krsort($this->listeners[$eventName]); |
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$this->sorted[$eventName] = call_user_func_array('array_merge', $this->listeners[$eventName]); |
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} |
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} |
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SmoothPhp /
CQRS-ES-Framework-Laravel
