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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\Config;
  13  
  14  /**
  15   * A ConfigCacheFactory implementation that validates the
  16   * cache with an arbitrary set of ResourceCheckers.
  17   *
  18   * @author Matthias Pigulla <mp@webfactory.de>
  19   */
  20  class ResourceCheckerConfigCacheFactory implements ConfigCacheFactoryInterface
  21  {
  22      private $resourceCheckers = [];
  23  
  24      /**
  25       * @param iterable|ResourceCheckerInterface[] $resourceCheckers
  26       */
  27      public function __construct($resourceCheckers = [])
  28      {
  29          $this->resourceCheckers = $resourceCheckers;
  30      }
  31  
  32      /**
  33       * {@inheritdoc}
  34       */
  35      public function cache($file, $callback)
  36      {
  37          if (!\is_callable($callback)) {
  38              throw new \InvalidArgumentException(sprintf('Invalid type for callback argument. Expected callable, but got "%s".', \gettype($callback)));
  39          }
  40  
  41          $cache = new ResourceCheckerConfigCache($file, $this->resourceCheckers);
  42          if (!$cache->isFresh()) {
  43              \call_user_func($callback, $cache);
  44          }
  45  
  46          return $cache;
  47      }
  48  }