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src/Symfony/Component/Config/Resource/SelfCheckingResourceChecker.php
46 строк
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Nicolas Grekas
Use ??= more
02 ноя 2022, 12:08
02 ноя 2022, 12:08
aa96ed8
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<?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 { // Common shared cache, because this checker can be used in different // situations. For example, when using the full stack framework, the router // and the container have their own cache. But they may check the very same // resources private static array $cache = []; public function supports(ResourceInterface $metadata): bool { return $metadata instanceof SelfCheckingResourceInterface; } /** * @param SelfCheckingResourceInterface $resource */ public function isFresh(ResourceInterface $resource, int $timestamp): bool { $key = "$resource:$timestamp"; return self::$cache[$key] ??= $resource->isFresh($timestamp); } }