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<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
namespace Magento\Framework\Amqp;
use Magento\Framework\MessageQueue\ConnectionLostException;
use Magento\Framework\MessageQueue\EnvelopeInterface;
use Magento\Framework\MessageQueue\QueueInterface;
use PhpAmqpLib\Exception\AMQPProtocolConnectionException;
use PhpAmqpLib\Message\AMQPMessage;
use Magento\Framework\MessageQueue\EnvelopeFactory;
use Psr\Log\LoggerInterface;
/**
* Class Queue
*
* @api
* @since 102.0.1
*/
class Queue implements QueueInterface
{
/**
* @var Config
*/
private $amqpConfig;
/**
* @var string
*/
private $queueName;
/**
* @var EnvelopeFactory
*/
private $envelopeFactory;
/**
* @var LoggerInterface
*/
private $logger;
/**
* Initialize dependencies.
*
* @param Config $amqpConfig
* @param EnvelopeFactory $envelopeFactory
* @param string $queueName
* @param LoggerInterface $logger
*/
public function __construct(
Config $amqpConfig,
EnvelopeFactory $envelopeFactory,
$queueName,
LoggerInterface $logger
) {
$this->amqpConfig = $amqpConfig;
$this->queueName = $queueName;
$this->envelopeFactory = $envelopeFactory;
$this->logger = $logger;
}
/**
* @inheritdoc
* @since 102.0.1
*/
public function dequeue()
{
$envelope = null;
$channel = $this->amqpConfig->getChannel();
// @codingStandardsIgnoreStart
/** @var AMQPMessage $message */
try {
$message = $channel->basic_get($this->queueName);
} catch (AMQPProtocolConnectionException $e) {
throw new ConnectionLostException(
$e->getMessage(),
$e->getCode(),
$e
);
}
if ($message !== null) {
$properties = array_merge(
$message->get_properties(),
[
'topic_name' => $message->delivery_info['routing_key'],
'delivery_tag' => $message->delivery_info['delivery_tag'],
]
);
$envelope = $this->envelopeFactory->create(['body' => $message->body, 'properties' => $properties]);
}
// @codingStandardsIgnoreEnd
return $envelope;
}
/**
* @inheritdoc
* @since 102.0.1
*/
public function acknowledge(EnvelopeInterface $envelope)
{
$properties = $envelope->getProperties();
$channel = $this->amqpConfig->getChannel();
// @codingStandardsIgnoreStart
try {
$channel->basic_ack($properties['delivery_tag']);
} catch (AMQPProtocolConnectionException $e) {
throw new ConnectionLostException(
$e->getMessage(),
$e->getCode(),
$e
);
}
// @codingStandardsIgnoreEnd
}
/**
* @inheritdoc
* @since 102.0.1
*/
public function subscribe($callback)
{
$callbackConverter = function (AMQPMessage $message) use ($callback) {
// @codingStandardsIgnoreStart
$properties = array_merge(
$message->get_properties(),
[
'topic_name' => $message->delivery_info['routing_key'],
'delivery_tag' => $message->delivery_info['delivery_tag'],
]
);
// @codingStandardsIgnoreEnd
$envelope = $this->envelopeFactory->create(['body' => $message->body, 'properties' => $properties]);
if ($callback instanceof \Closure) {
$callback($envelope);
} else {
call_user_func($callback, $envelope);
}
};
$channel = $this->amqpConfig->getChannel();
// @codingStandardsIgnoreStart
$channel->basic_consume($this->queueName, '', false, false, false, false, $callbackConverter);
// @codingStandardsIgnoreEnd
while (count($channel->callbacks)) {
$channel->wait();
}
}
/**
* @inheritdoc
* @since 102.0.1
*/
public function reject(EnvelopeInterface $envelope, $requeue = true, $rejectionMessage = null)
{
$properties = $envelope->getProperties();
$channel = $this->amqpConfig->getChannel();
// @codingStandardsIgnoreStart
$channel->basic_reject($properties['delivery_tag'], $requeue);
// @codingStandardsIgnoreEnd
if ($rejectionMessage !== null) {
$this->logger->critical(
new \Magento\Framework\Phrase('Message has been rejected: %message', ['message' => $rejectionMessage])
);
}
}
/**
* @inheritdoc
* @since 102.0.1
*/
public function push(EnvelopeInterface $envelope)
{
$messageProperties = $envelope->getProperties();
$msg = new AMQPMessage(
$envelope->getBody(),
[
'correlation_id' => $messageProperties['correlation_id'],
'delivery_mode' => 2
]
);
$this->amqpConfig->getChannel()->basic_publish($msg, '', $this->queueName);
}
}