vendor/doctrine/doctrine-bundle/DependencyInjection/DoctrineExtension.php

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<?php

/*
 * This file is part of the Doctrine Bundle
 *
 * The code was originally distributed inside the Symfony framework.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 * (c) Doctrine Project, Benjamin Eberlei <kontakt@beberlei.de>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Doctrine\Bundle\DoctrineBundle\DependencyInjection;

use Doctrine\ORM\Version;
use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
use Symfony\Component\DependencyInjection\Alias;
use Symfony\Component\DependencyInjection\Loader\XmlFileLoader;
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\DependencyInjection\Definition;
use Symfony\Component\DependencyInjection\DefinitionDecorator;
use Symfony\Component\DependencyInjection\Reference;
use Symfony\Bridge\Doctrine\DependencyInjection\AbstractDoctrineExtension;
use Symfony\Component\Config\FileLocator;
use Doctrine\Bundle\DoctrineCacheBundle\DependencyInjection\SymfonyBridgeAdapter;
use Doctrine\Bundle\DoctrineCacheBundle\DependencyInjection\CacheProviderLoader;

/**
 * DoctrineExtension is an extension for the Doctrine DBAL and ORM library.
 *
 * @author Jonathan H. Wage <jonwage@gmail.com>
 * @author Fabien Potencier <fabien@symfony.com>
 * @author Benjamin Eberlei <kontakt@beberlei.de>
 * @author Fabio B. Silva <fabio.bat.silva@gmail.com>
 * @author Kinn Coelho Julião <kinncj@php.net>
 */
class DoctrineExtension extends AbstractDoctrineExtension
{
    /**
     * @var string
     */
    private $defaultConnection;

    /**
     * @var array
     */
    private $entityManagers;

    /**
     * @var SymfonyBridgeAdapter
     */
    private $adapter;

    /**
     * @param SymfonyBridgeAdapter $adapter
     */
    public function __construct(SymfonyBridgeAdapter $adapter = null)
    {