<?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\Bundle\FrameworkBundle\Routing;

use Symfony\Component\Routing\Router as BaseRouter;

use Symfony\Component\Routing\RequestContext;

use Symfony\Component\DependencyInjection\ContainerInterface;

/**

 * This Router only creates the Loader only when the cache is empty.

 *

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

 */

class Router extends BaseRouter

{

    private $container;

    /**

     * Constructor.

     *

     * @param ContainerInterface $container A ContainerInterface instance

     * @param mixed              $resource  The main resource to load

     * @param array              $options   An array of options

     * @param RequestContext     $context   The context

     * @param array              $defaults  The default values

     */

    public function __construct(ContainerInterface $container, $resource, array $options = array(), RequestContext $context = null, array $defaults = array())

    {

        $this->container = $container;

        $this->resource = $resource;

        $this->context = null === $context ? new RequestContext() : $context;

        $this->defaults = $defaults;

        $this->setOptions($options);

    }

    /**

     * @{inheritdoc}

     */

    public function getRouteCollection()

    {

        if (null === $this->collection) {

            $this->collection = $this->container->get('routing.loader')->load($this->resource, $this->options['resource_type']);

        }

        return $this->collection;

    }

}