62 lines
1.8 KiB
PHP
62 lines
1.8 KiB
PHP
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Bridge\Doctrine\Messenger;
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use Doctrine\DBAL\Connection;
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use Doctrine\DBAL\Exception as DBALException;
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use Doctrine\ORM\EntityManagerInterface;
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use Symfony\Component\Messenger\Envelope;
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use Symfony\Component\Messenger\Middleware\StackInterface;
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use Symfony\Component\Messenger\Stamp\ConsumedByWorkerStamp;
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/**
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* Checks whether the connection is still open or reconnects otherwise.
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*
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* @author Fuong <insidestyles@gmail.com>
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*/
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class DoctrinePingConnectionMiddleware extends AbstractDoctrineMiddleware
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{
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protected function handleForManager(EntityManagerInterface $entityManager, Envelope $envelope, StackInterface $stack): Envelope
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{
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if (null !== $envelope->last(ConsumedByWorkerStamp::class)) {
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$this->pingConnection($entityManager);
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}
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return $stack->next()->handle($envelope, $stack);
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}
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private function pingConnection(EntityManagerInterface $entityManager): void
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{
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$connection = $entityManager->getConnection();
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try {
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$this->executeDummySql($connection);
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} catch (DBALException) {
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$connection->close();
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// Attempt to reestablish the lazy connection by sending another query.
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$this->executeDummySql($connection);
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}
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if (!$entityManager->isOpen()) {
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$this->managerRegistry->resetManager($this->entityManagerName);
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}
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}
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/**
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* @throws DBALException
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*/
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private function executeDummySql(Connection $connection): void
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{
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$connection->executeQuery($connection->getDatabasePlatform()->getDummySelectSQL());
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}
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}
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