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<?php |
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namespace AsyncPHP\Remit\Server; |
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use AsyncPHP\Remit\Event; |
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use AsyncPHP\Remit\Event\InMemoryEvent; |
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use AsyncPHP\Remit\Location; |
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use AsyncPHP\Remit\Server; |
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use Closure; |
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use ZMQ; |
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use ZMQContext; |
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use ZMQSocket; |
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final class ZeroMqServer implements Server |
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{ |
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/** |
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* @var Location |
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*/ |
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private $location; |
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/** |
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* @var ZMQSocket |
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*/ |
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private $socket; |
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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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* @param Location $location |
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*/ |
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public function __construct(Location $location) |
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{ |
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$this->location = $location; |
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} |
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/** |
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* @inheritdoc |
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* |
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* @param string $name |
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* @param Closure $closure |
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* |
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* @return $this |
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*/ |
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public function addListener($name, Closure $closure) |
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{ |
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if (empty($this->listeners[$name])) { |
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$hash = spl_object_hash($closure); |
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$this->listeners[$name][$hash] = $closure; |
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} |
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return $this; |
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} |
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/** |
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* @inheritdoc |
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* |
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* @param string $name |
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* @param Closure $closure |
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*/ |
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public function removeListener($name, Closure $closure) |
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{ |
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$hash = spl_object_hash($closure); |
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if (isset($this->listeners[$name]) && isset($this->listeners[$name][$hash])) { |
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unset($this->listeners[$name][$hash]); |
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} |
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return $this; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function tick() |
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{ |
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$socket = $this->getSocket(); |
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if (!($event = $socket->recv(ZMQ::MODE_DONTWAIT))) { |
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return; |
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} |
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$event = @unserialize($event); |
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if ($event instanceof Event) { |
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$this->dispatchEvent($event); |
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} |
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} |
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/** |
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* @return ZMQSocket |
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*/ |
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View Code Duplication |
private function getSocket() |
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{ |
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if ($this->socket === null) { |
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$context = new ZMQContext(); |
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$host = $this->location->getHost(); |
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$port = $this->location->getPort(); |
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$this->socket = new ZMQSocket($context, ZMQ::SOCKET_PULL, spl_object_hash($this)); |
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$this->socket->bind("tcp://{$host}:$port"); |
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} |
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return $this->socket; |
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} |
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/** |
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* @param Event $event |
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* |
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* @return $this |
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*/ |
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private function dispatchEvent(Event $event) |
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{ |
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$name = $event->getName(); |
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if (isset($this->listeners[$name])) { |
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foreach ($this->listeners[$name] as $closure) { |
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call_user_func_array($closure, $event->getParameters()); |
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} |
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} |
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return $this; |
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} |
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/** |
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* @inheritdoc |
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* |
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* @param string $name |
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* @param array $parameters |
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* |
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* @return $this |
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*/ |
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public function emit($name, array $parameters = []) |
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{ |
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return $this->dispatchEvent( |
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new InMemoryEvent($name, $parameters) |
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); |
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} |
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/** |
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* @inheritdoc |
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* |
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* @return string |
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*/ |
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public function serialize() |
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{ |
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return serialize($this->location); |
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} |
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/** |
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* @inheritdoc |
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* |
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* @param string $serialized |
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*/ |
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public function unserialize($serialized) |
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{ |
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$this->location = unserialize($serialized); |
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} |
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/** |
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* @return Location |
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*/ |
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public function getLocation() |
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{ |
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return $this->location; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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View Code Duplication |
public function disconnect() |
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{ |
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if ($this->socket) { |
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try { |
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$host = $this->location->getHost(); |
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$port = $this->location->getPort(); |
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$this->socket->disconnect("tcp://{$host}:{$port}"); |
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} catch (Exception $exception) { |
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// TODO: find an elegant way to deal with this |
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} |
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} |
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} |
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public function __destruct() |
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{ |
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$this->disconnect(); |
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} |
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} |
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Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.