<?php

/*

 * This file is part of the Symfony package.

 *

 * (c) Fabien Potencier <fabien@symfony.com>

 *

 * For the full copyright and license information, please view the LICENSE

 * file that was distributed with this source code.

 */

namespace Symfony\Component\Routing\Loader;

use Symfony\Component\Routing\RouteCollection;

use Symfony\Component\Config\Resource\DirectoryResource;

/**

 * AnnotationDirectoryLoader loads routing information from annotations set

 * on PHP classes and methods.

 *

 * @author Fabien Potencier <fabien@symfony.com>

 */

class AnnotationDirectoryLoader extends AnnotationFileLoader

{

    /**

     * Loads from annotations from a directory.

     *

     * @param string $path A directory path

     * @param string $type The resource type

     *

     * @return RouteCollection A RouteCollection instance

     *

     * @throws \InvalidArgumentException When the directory does not exist or its routes cannot be parsed

     */

    public function load($path, $type = null)

    {

        $dir = $this->locator->locate($path);

        $collection = new RouteCollection();

        $collection->addResource(new DirectoryResource($dir, '/\.php$/'));

        foreach (new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($dir), \RecursiveIteratorIterator::LEAVES_ONLY) as $file) {

            if (!$file->isFile() || '.php' !== substr($file->getFilename(), -4)) {

                continue;

            }

            if ($class = $this->findClass($file)) {

                $collection->addCollection($this->loader->load($class, $type));

            }

        }

        return $collection;

    }

    /**

     * Returns true if this class supports the given resource.

     *

     * @param mixed  $resource A resource

     * @param string $type     The resource type

     *

     * @return Boolean True if this class supports the given resource, false otherwise

     */

    public function supports($resource, $type = null)

    {

        try {

            $path = $this->locator->locate($resource);

        } catch (\Exception $e) {

            return false;

        }

        return is_string($resource) && is_dir($path) && (!$type || 'annotation' === $type);

    }

}