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<?php |
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/* |
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* Copyright 2012 Johannes M. Schmitt <[email protected]> |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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namespace JMS\JobQueueBundle\Entity\Repository; |
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use Doctrine\Common\Collections\ArrayCollection; |
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use Doctrine\Common\Util\ClassUtils; |
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use Doctrine\DBAL\Connection; |
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use Doctrine\ORM\EntityManager; |
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use Doctrine\ORM\Query\Parameter; |
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use Doctrine\ORM\Query\ResultSetMappingBuilder; |
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use Doctrine\Persistence\ManagerRegistry as PersistenceManagerRegistry; |
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use JMS\JobQueueBundle\Entity\Job; |
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use JMS\JobQueueBundle\Event\StateChangeEvent; |
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use JMS\JobQueueBundle\Retry\ExponentialRetryScheduler; |
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use JMS\JobQueueBundle\Retry\RetryScheduler; |
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use Symfony\Component\EventDispatcher\EventDispatcherInterface; |
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class JobManager |
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{ |
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private $dispatcher; |
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private $registry; |
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private $retryScheduler; |
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public function __construct(PersistenceManagerRegistry $managerRegistry, EventDispatcherInterface $eventDispatcher, RetryScheduler $retryScheduler = null) |
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{ |
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$this->registry = $managerRegistry; |
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$this->dispatcher = $eventDispatcher; |
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$this->retryScheduler = $retryScheduler; |
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} |
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public function findStartableJob($workerName, array &$excludedIds = array(), $excludedQueues = array(), $restrictedQueues = array()) |
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{ |
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while (null !== $job = $this->findPendingJob($excludedIds, $excludedQueues, $restrictedQueues)) { |
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if ($job->isStartable() && $this->acquireLock($workerName, $job)) { |
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return $job; |
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} |
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$excludedIds[] = $job->getId(); |
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// We do not want to have non-startable jobs floating around in |
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// cache as they might be changed by another process. So, better |
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// re-fetch them when they are not excluded anymore. |
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$this->getJobManager()->getUnitOfWork()->detach($job); // ! detach is deprecated and has no replacement |
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} |
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return null; |
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} |
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private function acquireLock($workerName, Job $job) |
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{ |
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$affectedRows = $this->getJobManager()->getConnection()->executeStatement( |
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"UPDATE jms_jobs SET workerName = :worker WHERE id = :id AND workerName IS NULL", |
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array( |
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'worker' => $workerName, |
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'id' => $job->getId(), |
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) |
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); |
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if ($affectedRows > 0) { |
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$job->setWorkerName($workerName); |
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return true; |
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} |
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return false; |
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} |
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public function findAllForRelatedEntity($relatedEntity) |
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{ |
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list($relClass, $relId) = $this->getRelatedEntityIdentifier($relatedEntity); |
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$rsm = new ResultSetMappingBuilder($this->getJobManager()); |
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$rsm->addRootEntityFromClassMetadata('JMSJobQueueBundle:Job', 'j'); |
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return $this->getJobManager()->createNativeQuery("SELECT j.* FROM jms_jobs j INNER JOIN jms_job_related_entities r ON r.job_id = j.id WHERE r.related_class = :relClass AND r.related_id = :relId", $rsm) |
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->setParameter('relClass', $relClass) |
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->setParameter('relId', $relId) |
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->getResult(); |
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} |
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public function findOpenJobForRelatedEntity($command, $relatedEntity) |
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{ |
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return $this->findJobForRelatedEntity($command, $relatedEntity, array(Job::STATE_RUNNING, Job::STATE_PENDING, Job::STATE_NEW)); |
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} |
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public function findJobForRelatedEntity($command, $relatedEntity, array $states = array()) |
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{ |
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list($relClass, $relId) = $this->getRelatedEntityIdentifier($relatedEntity); |
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$rsm = new ResultSetMappingBuilder($this->getJobManager()); |
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$rsm->addRootEntityFromClassMetadata('JMSJobQueueBundle:Job', 'j'); |
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$sql = "SELECT j.* FROM jms_jobs j INNER JOIN jms_job_related_entities r ON r.job_id = j.id WHERE r.related_class = :relClass AND r.related_id = :relId AND j.command = :command"; |
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$params = new ArrayCollection(); |
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$params->add(new Parameter('command', $command)); |
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$params->add(new Parameter('relClass', $relClass)); |
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$params->add(new Parameter('relId', $relId)); |
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if (!empty($states)) { |
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$sql .= " AND j.state IN (:states)"; |
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$params->add(new Parameter('states', $states, Connection::PARAM_STR_ARRAY)); |
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} |
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return $this->getJobManager()->createNativeQuery($sql, $rsm) |
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->setParameters($params) |
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->getOneOrNullResult(); |
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} |
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private function getRelatedEntityIdentifier($entity) |
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{ |
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if (!is_object($entity)) { |
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throw new \RuntimeException('$entity must be an object.'); |
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} |
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if ($entity instanceof \Doctrine\Persistence\Proxy) { |
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$entity->__load(); |
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} |
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$relClass = ClassUtils::getClass($entity); |
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$relId = $this->registry->getManagerForClass($relClass)->getMetadataFactory() |
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->getMetadataFor($relClass)->getIdentifierValues($entity); |
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asort($relId); |
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if (!$relId) { |
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throw new \InvalidArgumentException(sprintf('The identifier for entity of class "%s" was empty.', $relClass)); |
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} |
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return array($relClass, json_encode($relId)); |
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} |
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public function findPendingJob(array $excludedIds = array(), array $excludedQueues = array(), array $restrictedQueues = array()) |
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{ |
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$qb = $this->getJobManager()->createQueryBuilder(); |
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$qb->select('j')->from('JMSJobQueueBundle:Job', 'j') |
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->orderBy('j.priority', 'ASC') |
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->addOrderBy('j.id', 'ASC'); |
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$conditions = array(); |
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$conditions[] = $qb->expr()->isNull('j.workerName'); |
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$conditions[] = $qb->expr()->lt('j.executeAfter', ':now'); |
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$qb->setParameter(':now', new \DateTime(), 'datetime'); |
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$conditions[] = $qb->expr()->eq('j.state', ':state'); |
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$qb->setParameter('state', Job::STATE_PENDING); |
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if (!empty($excludedIds)) { |
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$conditions[] = $qb->expr()->notIn('j.id', ':excludedIds'); |
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$qb->setParameter('excludedIds', $excludedIds, Connection::PARAM_INT_ARRAY); |
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} |
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if (!empty($excludedQueues)) { |
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$conditions[] = $qb->expr()->notIn('j.queue', ':excludedQueues'); |
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$qb->setParameter('excludedQueues', $excludedQueues, Connection::PARAM_STR_ARRAY); |
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} |
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if (!empty($restrictedQueues)) { |
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$conditions[] = $qb->expr()->in('j.queue', ':restrictedQueues'); |
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$qb->setParameter('restrictedQueues', $restrictedQueues, Connection::PARAM_STR_ARRAY); |
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} |
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$qb->where(call_user_func_array(array($qb->expr(), 'andX'), $conditions)); |
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return $qb->getQuery()->setMaxResults(1)->getOneOrNullResult(); |
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} |
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public function closeJob(Job $job, $finalState) |
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{ |
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$this->getJobManager()->getConnection()->beginTransaction(); |
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try { |
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$visited = array(); |
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$this->closeJobInternal($job, $finalState, $visited); |
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$this->getJobManager()->flush(); |
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$this->getJobManager()->getConnection()->commit(); |
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// Clean-up entity manager to allow for garbage collection to kick in. |
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foreach ($visited as $job) { |
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// If the job is an original job which is now being retried, let's |
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// not remove it just yet. |
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if (!$job->isClosedNonSuccessful() || $job->isRetryJob()) { |
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continue; |
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} |
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$this->getJobManager()->getUnitOfWork()->detach($job); // ! detach is deprecated and has no replacement |
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} |
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} catch (\Throwable $ex) { |
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$this->getJobManager()->getConnection()->rollback(); |
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throw $ex; |
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} |
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} |
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private function closeJobInternal(Job $job, $finalState, array &$visited = array()) |
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{ |
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if (in_array($job, $visited, true)) { |
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return; |
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} |
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$visited[] = $job; |
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if ($job->isInFinalState()) { |
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return; |
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} |
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if (null !== $this->dispatcher && ($job->isRetryJob() || 0 === count($job->getRetryJobs()))) { |
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$event = new StateChangeEvent($job, $finalState); |
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$this->dispatcher->dispatch($event); |
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$finalState = $event->getNewState(); |
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} |
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switch ($finalState) { |
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case Job::STATE_CANCELED: |
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$job->setState(Job::STATE_CANCELED); |
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$this->getJobManager()->persist($job); |
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if ($job->isRetryJob()) { |
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$this->closeJobInternal($job->getOriginalJob(), Job::STATE_CANCELED, $visited); |
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return; |
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} |
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foreach ($this->findIncomingDependencies($job) as $dep) { |
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$this->closeJobInternal($dep, Job::STATE_CANCELED, $visited); |
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} |
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return; |
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case Job::STATE_FAILED: |
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case Job::STATE_TERMINATED: |
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case Job::STATE_INCOMPLETE: |
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if ($job->isRetryJob()) { |
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2 |
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$job->setState($finalState); |
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2 |
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$this->getJobManager()->persist($job); |
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2 |
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$this->closeJobInternal($job->getOriginalJob(), $finalState); |
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2 |
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return; |
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} |
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256
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// The original job has failed, and we are allowed to retry it. |
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12 |
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if ($job->isRetryAllowed()) { |
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4 |
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$retryJob = new Job($job->getCommand(), $job->getArgs(), true, $job->getQueue(), $job->getPriority()); |
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4 |
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$retryJob->setMaxRuntime($job->getMaxRuntime()); |
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4 |
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if ($this->retryScheduler === null) { |
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$this->retryScheduler = new ExponentialRetryScheduler(5); |
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} |
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4 |
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$retryJob->setExecuteAfter($this->retryScheduler->scheduleNextRetry($job)); |
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267
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4 |
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$job->addRetryJob($retryJob); |
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4 |
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$this->getJobManager()->persist($retryJob); |
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4 |
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$this->getJobManager()->persist($job); |
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270
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271
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4 |
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return; |
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} |
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274
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10 |
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$job->setState($finalState); |
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275
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10 |
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$this->getJobManager()->persist($job); |
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276
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277
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// The original job has failed, and no retries are allowed. |
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10 |
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foreach ($this->findIncomingDependencies($job) as $dep) { |
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// This is a safe-guard to avoid blowing up if there is a database inconsistency. |
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4 |
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if (!$dep->isPending() && !$dep->isNew()) { |
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continue; |
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} |
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4 |
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$this->closeJobInternal($dep, Job::STATE_CANCELED, $visited); |
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} |
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10 |
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return; |
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289
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case Job::STATE_FINISHED: |
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290
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18 |
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if ($job->isRetryJob()) { |
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2 |
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$job->getOriginalJob()->setState($finalState); |
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292
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2 |
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$this->getJobManager()->persist($job->getOriginalJob()); |
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293
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} |
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18 |
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$job->setState($finalState); |
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18 |
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$this->getJobManager()->persist($job); |
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297
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18 |
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return; |
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298
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299
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default: |
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300
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throw new \LogicException(sprintf('Non allowed state "%s" in closeJobInternal().', $finalState)); |
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301
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} |
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302
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} |
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304
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/** |
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305
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* @return Job[] |
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306
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*/ |
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307
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12 |
View Code Duplication |
public function findIncomingDependencies(Job $job) |
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308
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{ |
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309
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12 |
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$jobIds = $this->getJobIdsOfIncomingDependencies($job); |
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310
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12 |
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if (empty($jobIds)) { |
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311
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12 |
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return array(); |
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312
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} |
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313
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314
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6 |
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return $this->getJobManager()->createQuery("SELECT j, d FROM JMSJobQueueBundle:Job j LEFT JOIN j.dependencies d WHERE j.id IN (:ids)") |
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315
|
6 |
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->setParameter('ids', $jobIds) |
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316
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6 |
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->getResult(); |
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317
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} |
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318
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319
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/** |
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320
|
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* @return Job[] |
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321
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*/ |
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322
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View Code Duplication |
public function getIncomingDependencies(Job $job) |
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323
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{ |
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324
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$jobIds = $this->getJobIdsOfIncomingDependencies($job); |
|
325
|
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if (empty($jobIds)) { |
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326
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return array(); |
|
327
|
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} |
|
328
|
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329
|
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return $this->getJobManager()->createQuery("SELECT j FROM JMSJobQueueBundle:Job j WHERE j.id IN (:ids)") |
|
330
|
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->setParameter('ids', $jobIds) |
|
331
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->getResult(); |
|
332
|
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} |
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333
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334
|
12 |
|
private function getJobIdsOfIncomingDependencies(Job $job) |
|
335
|
|
|
{ |
|
336
|
12 |
|
$jobIds = $this->getJobManager()->getConnection() |
|
337
|
12 |
|
->executeQuery("SELECT source_job_id FROM jms_job_dependencies WHERE dest_job_id = :id", array('id' => $job->getId())) |
|
338
|
12 |
|
->fetchAll(\PDO::FETCH_COLUMN); |
|
339
|
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|
|
340
|
12 |
|
return $jobIds; |
|
341
|
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} |
|
342
|
|
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|
|
343
|
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|
public function findLastJobsWithError($nbJobs = 10) |
|
344
|
|
|
{ |
|
345
|
|
|
return $this->getJobManager()->createQuery("SELECT j FROM JMSJobQueueBundle:Job j WHERE j.state IN (:errorStates) AND j.originalJob IS NULL ORDER BY j.closedAt DESC") |
|
346
|
|
|
->setParameter('errorStates', array(Job::STATE_TERMINATED, Job::STATE_FAILED)) |
|
347
|
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|
->setMaxResults($nbJobs) |
|
348
|
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|
->getResult(); |
|
349
|
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} |
|
350
|
|
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|
351
|
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public function getAvailableQueueList() |
|
352
|
|
|
{ |
|
353
|
|
|
$queues = $this->getJobManager()->createQuery("SELECT DISTINCT j.queue FROM JMSJobQueueBundle:Job j WHERE j.state IN (:availableStates) GROUP BY j.queue") |
|
354
|
|
|
->setParameter('availableStates', array(Job::STATE_RUNNING, Job::STATE_NEW, Job::STATE_PENDING)) |
|
355
|
|
|
->getResult(); |
|
356
|
|
|
|
|
357
|
|
|
$newQueueArray = array(); |
|
358
|
|
|
|
|
359
|
|
|
foreach ($queues as $queue) { |
|
360
|
|
|
$newQueue = $queue['queue']; |
|
361
|
|
|
$newQueueArray[] = $newQueue; |
|
362
|
|
|
} |
|
363
|
|
|
|
|
364
|
|
|
return $newQueueArray; |
|
365
|
|
|
} |
|
366
|
|
|
|
|
367
|
|
|
|
|
368
|
|
|
public function getAvailableJobsForQueueCount($jobQueue) |
|
369
|
|
|
{ |
|
370
|
|
|
$result = $this->getJobManager()->createQuery("SELECT j.queue FROM JMSJobQueueBundle:Job j WHERE j.state IN (:availableStates) AND j.queue = :queue") |
|
371
|
|
|
->setParameter('availableStates', array(Job::STATE_RUNNING, Job::STATE_NEW, Job::STATE_PENDING)) |
|
372
|
|
|
->setParameter('queue', $jobQueue) |
|
373
|
|
|
->setMaxResults(1) |
|
374
|
|
|
->getOneOrNullResult(); |
|
375
|
|
|
|
|
376
|
|
|
return count($result); |
|
377
|
|
|
} |
|
378
|
|
|
|
|
379
|
44 |
|
private function getJobManager(): EntityManager |
|
380
|
|
|
{ |
|
381
|
44 |
|
return $this->registry->getManagerForClass(Job::class); |
|
382
|
|
|
} |
|
383
|
|
|
} |
|
384
|
|
|
|
This check marks implicit conversions of arrays to boolean values in a comparison. While in PHP an empty array is considered to be equal (but not identical) to false, this is not always apparent.
Consider making the comparison explicit by using
empty(..)or! empty(...)instead.