private function handleCache(array $config, ContainerBuilder $container, FileLoader $loader)
    {
        $loader->load('cache.yml');

        $purgeService = null;
        if (isset($config['http_cache']['purge_type'])) {
            $container->setParameter('ezpublish.http_cache.purge_type', $config['http_cache']['purge_type']);
        }
    }