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<?php |
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namespace Dtc\QueueBundle\RabbitMQ; |
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use Dtc\QueueBundle\Model\AbstractJobManager; |
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use PhpAmqpLib\Channel\AMQPChannel; |
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use PhpAmqpLib\Connection\AbstractConnection; |
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use PhpAmqpLib\Message\AMQPMessage; |
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class JobManager extends AbstractJobManager |
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{ |
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/** @var AMQPChannel */ |
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protected $channel; |
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/** @var AbstractConnection */ |
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protected $connection; |
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protected $queueArgs; |
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protected $exchangeArgs; |
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protected $channelSetup = false; |
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protected $hostname; |
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protected $pid; |
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protected $maxPriority; |
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public function __construct() |
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{ |
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$this->hostname = gethostname() ?: ''; |
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$this->pid = getmypid(); |
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} |
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/** |
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* @param string $exchange |
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* @param string $type |
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* @param bool $passive |
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* @param bool $durable |
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* @param bool $autoDelete |
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*/ |
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public function setExchangeArgs($exchange, $type, $passive, $durable, $autoDelete) |
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{ |
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$this->exchangeArgs = [$exchange, $type, $passive, $durable, $autoDelete]; |
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} |
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/** |
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* @param string $queue |
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* @param bool $passive |
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* @param bool $durable |
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* @param bool $exclusive |
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* @param bool $autoDelete |
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* @param int $maxPriority |
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*/ |
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public function setQueueArgs($queue, $passive, $durable, $exclusive, $autoDelete, $maxPriority) |
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{ |
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$arguments = [$queue, $passive, $durable, $exclusive, $autoDelete]; |
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$this->queueArgs = $arguments; |
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if (!ctype_digit(strval($maxPriority))) { |
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throw new \Exception('Max Priority needs to be a non-negative integer'); |
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} |
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if (strval(intval($maxPriority)) !== strval($maxPriority)) { |
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throw new \Exception('Priority is higher than '.PHP_INT_MAX); |
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} |
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$this->maxPriority = $maxPriority; |
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} |
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public function setAMQPConnection(AbstractConnection $connection) |
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{ |
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$this->connection = $connection; |
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$this->channel = $connection->channel(); |
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} |
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/** |
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* @return AMQPChannel |
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*/ |
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public function getChannel() |
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{ |
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return $this->channel; |
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} |
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public function setupChannel() |
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{ |
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if (empty($this->queueArgs)) { |
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throw new \Exception(__METHOD__.': queue args need to be set via setQueueArgs(...)'); |
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} |
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if (empty($this->exchangeArgs)) { |
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throw new \Exception(__METHOD__.': exchange args need to be set via setExchangeArgs(...)'); |
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} |
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if (!$this->channelSetup) { |
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call_user_func_array([$this->channel, 'exchange_declare'], $this->exchangeArgs); |
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if ($this->maxPriority) { |
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array_push($this->queueArgs, false); |
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array_push($this->queueArgs, ['x-max-priority' => ['I', intval($this->maxPriority)]]); |
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} |
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call_user_func_array([$this->channel, 'queue_declare'], $this->queueArgs); |
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$this->channel->queue_bind($this->queueArgs[0], $this->exchangeArgs[0]); |
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$this->channelSetup = true; |
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} |
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} |
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public function save(\Dtc\QueueBundle\Model\Job $job) |
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{ |
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$this->setupChannel(); |
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if (!$job->getId()) { |
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$job->setId(uniqid($this->hostname.'-'.$this->pid, true)); |
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} |
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if (null !== ($priority = $job->getPriority()) && !$this->maxPriority) { |
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throw new \Exception('This queue does not support priorities'); |
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} |
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if (!$job instanceof Job) { |
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throw new \Exception('Job needs to be instance of '.Job::class); |
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} |
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$msg = new AMQPMessage($job->toMessage()); |
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if ($this->maxPriority) { |
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$priority = null === $priority ? 0 : $this->maxPriority - $priority; |
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$msg->set('priority', $priority); |
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} |
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$this->channel->basic_publish($msg, $this->exchangeArgs[0]); |
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return $job; |
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} |
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/** |
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* @param string $workerName |
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*/ |
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public function getJob($workerName = null, $methodName = null, $prioritize = true, $runId = null) |
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{ |
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if ($methodName) { |
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throw new \Exception('Unsupported'); |
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} |
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$this->setupChannel(); |
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$expiredJob = false; |
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do { |
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$message = $this->channel->basic_get($this->queueArgs[0]); |
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if ($message) { |
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$job = new Job(); |
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$job->fromMessage($message->body); |
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$job->setRunId($runId); |
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if (($expiresAt = $job->getExpiresAt()) && $expiresAt->getTimestamp() < time()) { |
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$expiredJob = true; |
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$this->channel->basic_nack($message->delivery_info['delivery_tag']); |
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continue; |
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} |
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$job->setDeliveryTag($message->delivery_info['delivery_tag']); |
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return $job; |
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} |
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1 |
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} while ($expiredJob); |
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1 |
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return null; |
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} |
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// Save History get called upon completion of the job |
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public function saveHistory(\Dtc\QueueBundle\Model\Job $job) |
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{ |
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if (!$job instanceof Job) { |
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throw new \Exception("Expected \Dtc\QueueBundle\RabbitMQ\Job, got ".get_class($job)); |
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} |
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$deliveryTag = $job->getDeliveryTag(); |
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$this->channel->basic_ack($deliveryTag); |
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return; |
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} |
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1 |
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public function __destruct() |
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{ |
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$this->channel->close(); |
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1 |
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} |
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} |
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mmucklo /
DtcQueueBundle
