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   1  <?php
   2  
   3  /*
   4   * This file is part of the Symfony package.
   5   *
   6   * (c) Fabien Potencier <fabien@symfony.com>
   7   *
   8   * For the full copyright and license information, please view the LICENSE
   9   * file that was distributed with this source code.
  10   */
  11  
  12  namespace Symfony\Component\DependencyInjection\Config;
  13  
  14  use Symfony\Component\Config\Resource\ResourceInterface;
  15  use Symfony\Component\Config\ResourceCheckerInterface;
  16  use Symfony\Component\DependencyInjection\ContainerInterface;
  17  
  18  /**
  19   * @author Maxime Steinhausser <maxime.steinhausser@gmail.com>
  20   */
  21  class ContainerParametersResourceChecker implements ResourceCheckerInterface
  22  {
  23      /** @var ContainerInterface */
  24      private $container;
  25  
  26      public function __construct(ContainerInterface $container)
  27      {
  28          $this->container = $container;
  29      }
  30  
  31      /**
  32       * {@inheritdoc}
  33       */
  34      public function supports(ResourceInterface $metadata)
  35      {
  36          return $metadata instanceof ContainerParametersResource;
  37      }
  38  
  39      /**
  40       * {@inheritdoc}
  41       */
  42      public function isFresh(ResourceInterface $resource, $timestamp)
  43      {
  44          foreach ($resource->getParameters() as $key => $value) {
  45              if (!$this->container->hasParameter($key) || $this->container->getParameter($key) !== $value) {
  46                  return false;
  47              }
  48          }
  49  
  50          return true;
  51      }
  52  }