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<?php |
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namespace OldSound\RabbitMqBundle\RabbitMq; |
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use PhpAmqpLib\Message\AMQPMessage; |
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class RpcClient extends BaseAmqp |
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{ |
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protected $requests = 0; |
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protected $replies = array(); |
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protected $expectSerializedResponse; |
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protected $timeout = 0; |
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protected $notifyCallback; |
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private $queueName; |
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private $unserializer = 'unserialize'; |
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private $directReplyTo; |
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private $directConsumerTag; |
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public function initClient($expectSerializedResponse = true) |
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{ |
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$this->expectSerializedResponse = $expectSerializedResponse; |
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} |
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public function addRequest($msgBody, $server, $requestId = null, $routingKey = '', $expiration = 0) |
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{ |
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if (empty($requestId)) { |
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throw new \InvalidArgumentException('You must provide a $requestId'); |
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} |
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if (0 == $this->requests) { |
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// On first addRequest() call, clear all replies |
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$this->replies = array(); |
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if ($this->directReplyTo) { |
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// On direct reply-to mode, make initial consume call |
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$this->directConsumerTag = $this->getChannel()->basic_consume('amq.rabbitmq.reply-to', '', false, true, false, false, array($this, 'processMessage')); |
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} |
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} |
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$msg = new AMQPMessage($msgBody, array('content_type' => 'text/plain', |
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'reply_to' => $this->directReplyTo |
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? 'amq.rabbitmq.reply-to' // On direct reply-to mode, use predefined queue name |
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: $this->getQueueName(), |
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'delivery_mode' => 1, // non durable |
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'expiration' => $expiration*1000, |
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'correlation_id' => $requestId)); |
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$this->getChannel()->basic_publish($msg, $server, $routingKey); |
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$this->requests++; |
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if ($expiration > $this->timeout) { |
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$this->timeout = $expiration; |
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} |
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} |
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public function getReplies() |
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{ |
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if ($this->directReplyTo) { |
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$consumer_tag = $this->directConsumerTag; |
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} else { |
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$consumer_tag = $this->getChannel()->basic_consume($this->getQueueName(), '', false, true, false, false, array($this, 'processMessage')); |
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} |
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try { |
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while (count($this->replies) < $this->requests) { |
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$this->getChannel()->wait(null, false, $this->timeout); |
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} |
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} finally { |
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$this->getChannel()->basic_cancel($consumer_tag); |
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} |
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$this->directConsumerTag = null; |
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$this->requests = 0; |
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$this->timeout = 0; |
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return $this->replies; |
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} |
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public function processMessage(AMQPMessage $msg) |
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{ |
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$messageBody = $msg->body; |
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if ($this->expectSerializedResponse) { |
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$messageBody = call_user_func($this->unserializer, $messageBody); |
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} |
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if ($this->notifyCallback !== null) { |
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call_user_func($this->notifyCallback, $messageBody); |
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} |
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$this->replies[$msg->get('correlation_id')] = $messageBody; |
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} |
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protected function getQueueName() |
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{ |
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if (null === $this->queueName) { |
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list($this->queueName, ,) = $this->getChannel()->queue_declare("", false, false, true, false); |
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} |
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return $this->queueName; |
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} |
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public function setUnserializer($unserializer) |
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{ |
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$this->unserializer = $unserializer; |
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} |
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public function notify($callback) |
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{ |
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if (is_callable($callback)) { |
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$this->notifyCallback = $callback; |
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} else { |
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throw new \InvalidArgumentException('First parameter expects to be callable'); |
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} |
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} |
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public function setDirectReplyTo($directReplyTo) |
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{ |
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$this->directReplyTo = $directReplyTo; |
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} |
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public function reset() |
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{ |
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$this->replies = array(); |
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$this->requests = 0; |
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} |
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} |
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eMAGTechLabs /
RabbitMqBundle
