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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   * Basic implementation of ConfigCacheFactoryInterface that
  16   * creates an instance of the default ConfigCache.
  17   *
  18   * This factory and/or cache <em>do not</em> support cache validation
  19   * by means of ResourceChecker instances (that is, service-based).
  20   *
  21   * @author Matthias Pigulla <mp@webfactory.de>
  22   */
  23  class ConfigCacheFactory implements ConfigCacheFactoryInterface
  24  {
  25      private $debug;
  26  
  27      /**
  28       * @param bool $debug The debug flag to pass to ConfigCache
  29       */
  30      public function __construct($debug)
  31      {
  32          $this->debug = $debug;
  33      }
  34  
  35      /**
  36       * {@inheritdoc}
  37       */
  38      public function cache($file, $callback)
  39      {
  40          if (!\is_callable($callback)) {
  41              throw new \InvalidArgumentException(sprintf('Invalid type for callback argument. Expected callable, but got "%s".', \gettype($callback)));
  42          }
  43  
  44          $cache = new ConfigCache($file, $this->debug);
  45          if (!$cache->isFresh()) {
  46              \call_user_func($callback, $cache);
  47          }
  48  
  49          return $cache;
  50      }
  51  }