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<?php |
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/** |
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* NSQ via cluster |
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* User: moyo |
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* Date: 2018/7/6 |
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* Time: 6:22 PM |
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*/ |
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namespace Carno\NSQ; |
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use Carno\Cluster\Classify\Scenes; |
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use Carno\Cluster\Managed; |
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use Carno\Cluster\Resources; |
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use Carno\Net\Endpoint; |
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use Carno\NSQ\Clustered\Features; |
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use Carno\NSQ\Types\Consuming; |
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use Carno\NSQ\Types\Message; |
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use Carno\Promise\Promise; |
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use Carno\Promise\Promised; |
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abstract class Cluster extends Managed |
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{ |
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protected const PUB = 'publish'; |
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protected const SUB = 'subscribe'; |
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/** |
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* @var array |
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*/ |
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protected $tags = [self::PUB, self::SUB]; |
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/** |
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* @var string |
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*/ |
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protected $type = 'nsq'; |
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/** |
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* @var int |
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*/ |
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protected $port = 4161; |
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/** |
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* @var string |
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*/ |
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protected $topic = 'topic'; |
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/** |
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* @var string |
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*/ |
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protected $channel = 'channel'; |
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/** |
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* @var Promised |
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*/ |
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private $subscribed = null; |
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/** |
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* Cluster constructor. |
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* @param Resources $resources |
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*/ |
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public function __construct(Resources $resources) |
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{ |
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$resources->initialize(Scenes::RESOURCE, $this->type, $this->server, $this); |
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} |
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/** |
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* get producer queued cap |
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* @return int |
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*/ |
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abstract protected function producing() : int; |
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/** |
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* get consumer processor |
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* @return Consuming |
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*/ |
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abstract protected function consuming() : Consuming; |
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/** |
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* @param Endpoint $node |
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*/ |
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protected function discovered(Endpoint $node) : void |
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{ |
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in_array(self::SUB, $node->getTags()) && $this->picked($node); |
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} |
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/** |
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* @param Endpoint $endpoint |
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* @return Features |
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*/ |
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protected function connecting(Endpoint $endpoint) : Features |
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{ |
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return new Features( |
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$this->topic, |
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$this->channel, |
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$endpoint, |
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$this->subscribed ?? $this->subscribed = Promise::deferred(), |
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(isset($this->withoutProducer) || !in_array(self::PUB, $endpoint->getTags())) ? null : $this->producing(), |
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(isset($this->withoutConsumer) || !in_array(self::SUB, $endpoint->getTags())) ? null : $this->consuming() |
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); |
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} |
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/** |
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* @param Features $connected |
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* @return Promised |
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*/ |
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protected function disconnecting($connected) : Promised |
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{ |
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return $connected->shutdown(); |
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} |
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/** |
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* @param Message ...$messages |
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* @return mixed|bool |
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*/ |
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final public function publish(Message ...$messages) |
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{ |
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/** |
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* @var Features $features |
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*/ |
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$features = yield $this->picking(self::PUB); |
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return $features->producer()->publish(...$messages); |
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} |
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/** |
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*/ |
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final public function subscribe() |
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{ |
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$this->subscribed ? $this->subscribed->resolve() : $this->subscribed = Promise::resolved(); |
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} |
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} |
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carno-php /
nsq
