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;

    28 

    29     /**

    30      * Constructor.

    31      *

    32      * @param LoaderInterface[] $loaders An array of loaders

    33      */

    34     public function __construct(array $loaders = array())

    35     {

    36         $this->loaders = array();

    37         foreach ($loaders as $loader) {

    38             $this->addLoader($loader);

    39         }

    40     }

    41 

    42     /**

    43      * Returns a loader able to load the resource.

    44      *

    45      * @param mixed  $resource A resource

    46      * @param string $type     The resource type

    47      *

    48      * @return LoaderInterface|false A LoaderInterface instance

    49      */

    50     public function resolve($resource, $type = null)

    51     {

    52         foreach ($this->loaders as $loader) {

    53             if ($loader->supports($resource, $type)) {

    54                 return $loader;

    55             }

    56         }

    57 

    58         return false;

    59     }

    60 

    61     /**

    62      * Adds a loader.

    63      *

    64      * @param LoaderInterface $loader A LoaderInterface instance

    65      */

    66     public function addLoader(LoaderInterface $loader)

    67     {

    68         $this->loaders[] = $loader;

    69         $loader->setResolver($this);

    70     }

    71 

    72     /**

    73      * Returns the registered loaders.

    74      *

    75      * @return LoaderInterface[] An array of LoaderInterface instances

    76      */

    77     public function getLoaders()

    78     {

    79         return $this->loaders;

    80     }

    81 }