Edit File: SelfCheckingResourceChecker.php
<?php /* * This file is part of the Symfony package. * * (c) Fabien Potencier <fabien@symfony.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Symfony\Component\Config\Resource; use Symfony\Component\Config\ResourceCheckerInterface; /** * Resource checker for instances of SelfCheckingResourceInterface. * * As these resources perform the actual check themselves, we can provide * this class as a standard way of validating them. * * @author Matthias Pigulla <mp@webfactory.de> */ class SelfCheckingResourceChecker implements ResourceCheckerInterface { public function supports(ResourceInterface $metadata) { return $metadata instanceof SelfCheckingResourceInterface; } public function isFresh(ResourceInterface $resource, $timestamp) { /* @var SelfCheckingResourceInterface $resource */ return $resource->isFresh($timestamp); } }