vendor/doctrine/doctrine-cache-bundle/Acl/Model/AclCache.php

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<?php

namespace Doctrine\Bundle\DoctrineCacheBundle\Acl\Model;

use Doctrine\Common\Cache\CacheProvider;
use Symfony\Component\Security\Acl\Model\AclCacheInterface;
use Symfony\Component\Security\Acl\Model\AclInterface;
use Symfony\Component\Security\Acl\Model\ObjectIdentityInterface;
use Symfony\Component\Security\Acl\Model\PermissionGrantingStrategyInterface;

/**
 * This class is a wrapper around the actual cache implementation.
 *
 * @author Guilherme Blanco <guilhermeblanco@hotmail.com>
 * @author Fabien Potencier <fabien@symfony.com>
 * @author Johannes M. Schmitt <schmittjoh@gmail.com>
 */
class AclCache implements AclCacheInterface
{
    /**
     * @var \Doctrine\Common\Cache\CacheProvider
     */
    private $cache;

    /**
     * @var \Symfony\Component\Security\Acl\Model\PermissionGrantingStrategyInterface
     */
    private $permissionGrantingStrategy;

    /**
     * Constructor
     *
     * @param \Doctrine\Common\Cache\CacheProvider                                      $cache
     * @param \Symfony\Component\Security\Acl\Model\PermissionGrantingStrategyInterface $permissionGrantingStrategy
     */
    public function __construct(CacheProvider $cache, PermissionGrantingStrategyInterface $permissionGrantingStrategy)
    {
        $this->cache                      = $cache;
        $this->permissionGrantingStrategy = $permissionGrantingStrategy;
    }

    /**
     * {@inheritdoc}
     */
    public function evictFromCacheById($primaryKey)
    {
        if ( ! $this->cache->contains($primaryKey)) {
            return;
        }

        $key = $this->cache->fetch($primaryKey);

        $this->cache->delete($primaryKey);
        $this->evictFromCacheByKey($key);
    }

    /**
     * {@inheritdoc}
     */
    public function evictFromCacheByIdentity(ObjectIdentityInterface $oid)