Verzeichnisstruktur phpBB-3.1.0
- Veröffentlicht
- 27.10.2014
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AnnotationFileLoader.php
001 <?php
002
003 /*
004 * This file is part of the Symfony package.
005 *
006 * (c) Fabien Potencier <fabien@symfony.com>
007 *
008 * For the full copyright and license information, please view the LICENSE
009 * file that was distributed with this source code.
010 */
011
012 namespace Symfony\Component\Routing\Loader;
013
014 use Symfony\Component\Routing\RouteCollection;
015 use Symfony\Component\Config\Resource\FileResource;
016 use Symfony\Component\Config\Loader\FileLoader;
017 use Symfony\Component\Config\FileLocatorInterface;
018
019 /**
020 * AnnotationFileLoader loads routing information from annotations set
021 * on a PHP class and its methods.
022 *
023 * @author Fabien Potencier <fabien@symfony.com>
024 */
025 class AnnotationFileLoader extends FileLoader
026 {
027 protected $loader;
028
029 /**
030 * Constructor.
031 *
032 * @param FileLocatorInterface $locator A FileLocator instance
033 * @param AnnotationClassLoader $loader An AnnotationClassLoader instance
034 *
035 * @throws \RuntimeException
036 */
037 public function __construct(FileLocatorInterface $locator, AnnotationClassLoader $loader)
038 {
039 if (!function_exists('token_get_all')) {
040 throw new \RuntimeException('The Tokenizer extension is required for the routing annotation loaders.');
041 }
042
043 parent::__construct($locator);
044
045 $this->loader = $loader;
046 }
047
048 /**
049 * Loads from annotations from a file.
050 *
051 * @param string $file A PHP file path
052 * @param string|null $type The resource type
053 *
054 * @return RouteCollection A RouteCollection instance
055 *
056 * @throws \InvalidArgumentException When the file does not exist or its routes cannot be parsed
057 */
058 public function load($file, $type = null)
059 {
060 $path = $this->locator->locate($file);
061
062 $collection = new RouteCollection();
063 if ($class = $this->findClass($path)) {
064 $collection->addResource(new FileResource($path));
065 $collection->addCollection($this->loader->load($class, $type));
066 }
067
068 return $collection;
069 }
070
071 /**
072 * {@inheritdoc}
073 */
074 public function supports($resource, $type = null)
075 {
076 return is_string($resource) && 'php' === pathinfo($resource, PATHINFO_EXTENSION) && (!$type || 'annotation' === $type);
077 }
078
079 /**
080 * Returns the full class name for the first class in the file.
081 *
082 * @param string $file A PHP file path
083 *
084 * @return string|false Full class name if found, false otherwise
085 */
086 protected function findClass($file)
087 {
088 $class = false;
089 $namespace = false;
090 $tokens = token_get_all(file_get_contents($file));
091 for ($i = 0, $count = count($tokens); $i < $count; $i++) {
092 $token = $tokens[$i];
093
094 if (!is_array($token)) {
095 continue;
096 }
097
098 if (true === $class && T_STRING === $token[0]) {
099 return $namespace.'\\'.$token[1];
100 }
101
102 if (true === $namespace && T_STRING === $token[0]) {
103 $namespace = '';
104 do {
105 $namespace .= $token[1];
106 $token = $tokens[++$i];
107 } while ($i < $count && is_array($token) && in_array($token[0], array(T_NS_SEPARATOR, T_STRING)));
108 }
109
110 if (T_CLASS === $token[0]) {
111 $class = true;
112 }
113
114 if (T_NAMESPACE === $token[0]) {
115 $namespace = true;
116 }
117 }
118
119 return false;
120 }
121 }
122