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
12namespace Symfony\Component\Routing\Loader;
13
14use Symfony\Component\Config\Resource\DirectoryResource;
15use Symfony\Component\Routing\RouteCollection;
16
17/**
18 * AnnotationDirectoryLoader loads routing information from annotations set
19 * on PHP classes and methods.
20 *
21 * @author Fabien Potencier <fabien@symfony.com>
22 */
23class AnnotationDirectoryLoader extends AnnotationFileLoader
24{
25    /**
26     * Loads from annotations from a directory.
27     *
28     * @param string      $path A directory path
29     * @param string|null $type The resource type
30     *
31     * @return RouteCollection A RouteCollection instance
32     *
33     * @throws \InvalidArgumentException When the directory does not exist or its routes cannot be parsed
34     */
35    public function load($path, $type = null)
36    {
37        if (!is_dir($dir = $this->locator->locate($path))) {
38            return parent::supports($path, $type) ? parent::load($path, $type) : new RouteCollection();
39        }
40
41        $collection = new RouteCollection();
42        $collection->addResource(new DirectoryResource($dir, '/\.php$/'));
43        $files = iterator_to_array(new \RecursiveIteratorIterator(
44            new \RecursiveCallbackFilterIterator(
45                new \RecursiveDirectoryIterator($dir, \FilesystemIterator::SKIP_DOTS | \FilesystemIterator::FOLLOW_SYMLINKS),
46                function (\SplFileInfo $current) {
47                    return '.' !== substr($current->getBasename(), 0, 1);
48                }
49            ),
50            \RecursiveIteratorIterator::LEAVES_ONLY
51        ));
52        usort($files, function (\SplFileInfo $a, \SplFileInfo $b) {
53            return (string) $a > (string) $b ? 1 : -1;
54        });
55
56        foreach ($files as $file) {
57            if (!$file->isFile() || '.php' !== substr($file->getFilename(), -4)) {
58                continue;
59            }
60
61            if ($class = $this->findClass($file)) {
62                $refl = new \ReflectionClass($class);
63                if ($refl->isAbstract()) {
64                    continue;
65                }
66
67                $collection->addCollection($this->loader->load($class, $type));
68            }
69        }
70
71        return $collection;
72    }
73
74    /**
75     * {@inheritdoc}
76     */
77    public function supports($resource, $type = null)
78    {
79        if ('annotation' === $type) {
80            return true;
81        }
82
83        if ($type || !\is_string($resource)) {
84            return false;
85        }
86
87        try {
88            return is_dir($this->locator->locate($resource));
89        } catch (\Exception $e) {
90            return false;
91        }
92    }
93}
94