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<?php |
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/* |
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* This file is part of the Borobudur-Cqrs package. |
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* |
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* (c) Hexacodelabs <http://hexacodelabs.com> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Borobudur\Cqrs\Bus; |
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use Borobudur\Bus\Bus; |
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use Borobudur\Bus\Exception\LogicException; |
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use Borobudur\Bus\Message\MessageInterface; |
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use Borobudur\Cqrs\Exception\InvalidArgumentException; |
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use Borobudur\Cqrs\Message\AbstractDomainEvent; |
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use Borobudur\EventDispatcher\EventDispatcher; |
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use Closure; |
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/** |
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* @author Iqbal Maulana <[email protected]> |
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* @created 8/18/15 |
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*/ |
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class EventBus extends Bus |
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{ |
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const BUS_NAME = 'bus.event'; |
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/** |
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* @var EventDispatcher |
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*/ |
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protected $dispatcher; |
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/** |
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* @var array |
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*/ |
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protected $responses = array(); |
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/** |
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* Constructor. |
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* |
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* @param EventDispatcher|null $dispatcher |
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*/ |
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public function __construct(EventDispatcher $dispatcher = null) |
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{ |
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$this->dispatcher = $dispatcher ?: new EventDispatcher(); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getName() |
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{ |
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return EventBus::BUS_NAME; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function registers(array $events) |
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{ |
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foreach ($events as $event => $handler) { |
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if (is_array($handler)) { |
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foreach ($handler as $h) { |
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$this->register($event, $h); |
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} |
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} else { |
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$this->register($event, $handler); |
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} |
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} |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function register($event, $handler) |
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{ |
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$name = ltrim($event, '\\'); |
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$this->messages[$name][] = $handler; |
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$this->dispatcher->addListener($name, $this->getClosureHandler($handler, $name)); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function dispatchNow(MessageInterface $event) |
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{ |
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if (!$event instanceof AbstractDomainEvent) { |
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throw new InvalidArgumentException(sprintf( |
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'Domain event "%s" should implement \Borobudur\Cqrs\Message\AbstractDomainEvent', |
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get_class($event) |
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)); |
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} |
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$this->responses = array(); |
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$this->dispatcher->fireEvent(ltrim(get_class($event), '\\'), $event); |
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return $this->responses; |
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} |
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/** |
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* Get event handler. |
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* |
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* @param mixed $handler |
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* @param string $class |
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* |
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* @return Closure |
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*/ |
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protected function getClosureHandler($handler, $class) |
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{ |
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return function (MessageInterface $message) use ($handler, $class) { |
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$class = ltrim(get_class($message), '\\'); |
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if (!isset($this->messages[$class])) { |
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throw new LogicException(sprintf('Message "%s" does not have handler.', $class)); |
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} |
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if (null !== ($response = $this->invoke($message, $handler, $class))) { |
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$this->responses[] = $response; |
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} |
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return $response; |
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}; |
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} |
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} |
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borobudur-php /
borobudur-cqrs
