/**
* @throws AMQPServerException|WrongStateException
* @return AMQPIncomingMessage
**/
public function getNextDelivery()
{
if (!$this->consumer instanceof AMQPConsumer) {
throw new WrongStateException();
}
try {
$obj = $this->lookupQueue($this->consumer->getQueueName());
$messages = $obj->consume(array('min' => 1, 'max' => 1, 'ack' => (bool) $this->consumer->isAutoAcknowledge()));
} catch (AMQPQueueException $e) {
throw new AMQPServerException($e->getMessage(), $e->getCode(), $e);
}
$this->checkCommandResult(is_array($messages), "Could not consume from queue");
$message = array_shift($messages);
$incoming = AMQPIncomingMessage::spawn($message);
if ($this->consumer->getConsumerTag() === null) {
$this->consumer->setConsumerTag($incoming->getConsumerTag());
$this->consumer->handleConsumeOk($incoming->getConsumerTag());
} else {
if ($this->consumer->getConsumerTag() != $incoming->getConsumerTag()) {
throw new WrongStateException('Consumer change tag');
}
}
$this->consumer->handleDelivery($incoming);
return $incoming;
}
