<?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\CacheWarmer;

use Symfony\Component\HttpKernel\CacheWarmer\CacheWarmerInterface;

use Symfony\Component\Routing\Router;

/**

 * Generates the router matcher and generator classes.

 *

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

 */

class RouterCacheWarmer implements CacheWarmerInterface

{

    protected $router;

    /**

     * Constructor.

     *

     * @param Router $router A Router instance

     */

    public function __construct(Router $router)

    {

        $this->router = $router;

    }

    /**

     * Warms up the cache.

     *

     * @param string $cacheDir The cache directory

     */

    public function warmUp($cacheDir)

    {

        $currentDir = $this->router->getOption('cache_dir');

        // force cache generation

        $this->router->setOption('cache_dir', $cacheDir);

        $this->router->getMatcher();

        $this->router->getGenerator();

        $this->router->setOption('cache_dir', $currentDir);

    }

    /**

     * Checks whether this warmer is optional or not.

     *

     * @return Boolean always true

     */

    public function isOptional()

    {

        return true;

    }

}