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- 06.01.2017
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LoaderResolver.php
01 <?php
02
03 /*
04 * This file is part of the Symfony package.
05 *
06 * (c) Fabien Potencier <fabien@symfony.com>
07 *
08 * For the full copyright and license information, please view the LICENSE
09 * 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 * Constructor.
31 *
32 * @param LoaderInterface[] $loaders An array of loaders
33 */
34 public function __construct(array $loaders = array())
35 {
36 foreach ($loaders as $loader) {
37 $this->addLoader($loader);
38 }
39 }
40
41 /**
42 * {@inheritdoc}
43 */
44 public function resolve($resource, $type = null)
45 {
46 foreach ($this->loaders as $loader) {
47 if ($loader->supports($resource, $type)) {
48 return $loader;
49 }
50 }
51
52 return false;
53 }
54
55 /**
56 * Adds a loader.
57 *
58 * @param LoaderInterface $loader A LoaderInterface instance
59 */
60 public function addLoader(LoaderInterface $loader)
61 {
62 $this->loaders[] = $loader;
63 $loader->setResolver($this);
64 }
65
66 /**
67 * Returns the registered loaders.
68 *
69 * @return LoaderInterface[] An array of LoaderInterface instances
70 */
71 public function getLoaders()
72 {
73 return $this->loaders;
74 }
75 }
76