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<?php |
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namespace Jellyfish\Event\Command; |
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use Jellyfish\Event\EventDispatcherInterface; |
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use Jellyfish\Event\EventListenerInterface; |
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use Jellyfish\Event\EventQueueConsumerInterface; |
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use Jellyfish\Lock\LockFactoryInterface; |
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use Jellyfish\Lock\LockTrait; |
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use Symfony\Component\Console\Command\Command; |
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use Symfony\Component\Console\Input\InputArgument; |
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use Symfony\Component\Console\Input\InputInterface; |
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use Symfony\Component\Console\Output\OutputInterface; |
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class EventQueueConsumeCommand extends Command |
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{ |
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use LockTrait; |
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public const NAME = 'event:queue:consume'; |
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public const DESCRIPTION = 'Consume from event queue'; |
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/** |
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* @param \Jellyfish\Event\EventDispatcherInterface $eventDispatcher |
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*/ |
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protected $eventDispatcher; |
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/** |
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* @param \Jellyfish\Event\EventQueueConsumerInterface $eventQueueConsumer |
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*/ |
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protected $eventQueueConsumer; |
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/** |
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* @param \Jellyfish\Event\EventDispatcherInterface $eventDispatcher |
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* @param \Jellyfish\Event\EventQueueConsumerInterface $eventQueueConsumer |
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* @param \Jellyfish\Lock\LockFactoryInterface $lockFactory |
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*/ |
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public function __construct( |
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EventDispatcherInterface $eventDispatcher, |
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EventQueueConsumerInterface $eventQueueConsumer, |
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LockFactoryInterface $lockFactory |
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) { |
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parent::__construct(); |
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$this->eventDispatcher = $eventDispatcher; |
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$this->eventQueueConsumer = $eventQueueConsumer; |
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$this->lockFactory = $lockFactory; |
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} |
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/** |
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* @return void |
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*/ |
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protected function configure(): void |
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{ |
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parent::configure(); |
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$this->setName(static::NAME); |
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$this->setDescription(static::DESCRIPTION); |
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$this->addArgument('eventName', InputArgument::REQUIRED, 'Event name'); |
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$this->addArgument('listenerIdentifier', InputArgument::REQUIRED, 'Listener identifier'); |
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} |
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/** |
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* @param \Symfony\Component\Console\Input\InputInterface $input |
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* @param \Symfony\Component\Console\Output\OutputInterface $output |
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* |
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* @return int|null |
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*/ |
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protected function execute(InputInterface $input, OutputInterface $output): ?int |
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{ |
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$eventName = (string) $input->getArgument('eventName'); |
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$listenerIdentifier = (string) $input->getArgument('listenerIdentifier'); |
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$lockIdentifier = $this->createIdentifier([static::NAME, $eventName, $listenerIdentifier]); |
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if (!$this->acquire($lockIdentifier)) { |
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return null; |
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} |
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$result = $this->executeLockablePart($eventName, $listenerIdentifier); |
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$this->release(); |
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return $result; |
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} |
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/** |
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* @param string $eventName |
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* @param string $listenerIdentifier |
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* |
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* @return int|null |
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*/ |
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protected function executeLockablePart(string $eventName, string $listenerIdentifier): ?int |
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{ |
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$event = $this->eventQueueConsumer->dequeueEvent($eventName, $listenerIdentifier); |
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if ($event === null) { |
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return null; |
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} |
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$listener = $this->eventDispatcher |
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->getListener(EventListenerInterface::TYPE_ASYNC, $eventName, $listenerIdentifier); |
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if ($listener !== null) { |
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$listener->handle($event); |
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} |
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return null; |
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} |
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} |
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jellyfishphp /
jellyfish
This check looks for function or method calls that always return null and whose return value is assigned to a variable.
The method
getObject()can return nothing but null, so it makes no sense to assign that value to a variable.The reason is most likely that a function or method is imcomplete or has been reduced for debug purposes.