/**
* @inheritdoc
*/
public function retry(EnvelopeInterface $envelope, $attempt, \Exception $exception = null)
{
// decrease priority with every attempt
$priority = $envelope->getPriority();
if ($priority > 0) {
--$priority;
}
$message = $this->createRetryMessage($envelope, $attempt, $exception);
$message->setPriority($priority);
return $this->publisher->publish($message);
}
/**
* Creates a new message to retry.
*
* @param EnvelopeInterface $envelope
* @param int $attempt
* @param \Exception $exception
*
* @return Message
*/
protected function createRetryMessage(EnvelopeInterface $envelope, $attempt, \Exception $exception = null)
{
$headers = $envelope->getHeaders();
$headers[RetryProcessor::PROPERTY_KEY] = $attempt;
if ($exception) {
$headers['x-exception'] = ['message' => $exception->getMessage(), 'type' => get_class($exception), 'file' => $exception->getFile(), 'line' => $exception->getLine()];
}
$properties = new MessageProperties([MessageProperties::KEY_CONTENT_TYPE => $envelope->getContentType(), MessageProperties::KEY_DELIVERY_MODE => $envelope->getDeliveryMode(), MessageProperties::KEY_HEADERS => $headers, MessageProperties::KEY_PRIORITY => $envelope->getPriority()]);
return new Message($envelope->getBody(), $properties, $envelope->getDeliveryTag(), $envelope->getRoutingKey());
}
/**
* @inheritdoc
*/
public function nack(EnvelopeInterface $envelope, $requeue = false)
{
$this->queue->nack($envelope->getDeliveryTag(), $requeue ? QueueInterface::REQUEUE : null);
}
/**
* @param EnvelopeInterface $envelope
*
* @throws \LogicException
*
* @return int
*/
protected function getAttemptValue(EnvelopeInterface $envelope)
{
if (false === ($attempt = $envelope->getHeader(self::PROPERTY_KEY))) {
return 1;
}
$attempt = (int) $attempt;
if ($attempt < 1) {
throw new \LogicException(sprintf('Attempt can only be a positive number, got "%s"', json_encode($attempt)));
}
return $attempt;
}