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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\Loader;
  13  
  14  /**
  15   * LoaderResolver selects a loader for a given resource.
  16   *
  17   * A resource can be anything (e.g. a full path to a config file or a Closure).
  18   * Each loader determines whether it can load a resource and how.
  19   *
  20   * @author Fabien Potencier <fabien@symfony.com>
  21   */
  22  class LoaderResolver implements LoaderResolverInterface
  23  {
  24      /**
  25       * @var LoaderInterface[] An array of LoaderInterface objects
  26       */
  27      private $loaders = array();
  28  
  29      /**
  30       * @param LoaderInterface[] $loaders An array of loaders
  31       */
  32      public function __construct(array $loaders = array())
  33      {
  34          foreach ($loaders as $loader) {
  35              $this->addLoader($loader);
  36          }
  37      }
  38  
  39      /**
  40       * {@inheritdoc}
  41       */
  42      public function resolve($resource, $type = null)
  43      {
  44          foreach ($this->loaders as $loader) {
  45              if ($loader->supports($resource, $type)) {
  46                  return $loader;
  47              }
  48          }
  49  
  50          return false;
  51      }
  52  
  53      public function addLoader(LoaderInterface $loader)
  54      {
  55          $this->loaders[] = $loader;
  56          $loader->setResolver($this);
  57      }
  58  
  59      /**
  60       * Returns the registered loaders.
  61       *
  62       * @return LoaderInterface[] An array of LoaderInterface instances
  63       */
  64      public function getLoaders()
  65      {
  66          return $this->loaders;
  67      }
  68  }