protected function parseFilters(SimpleXMLElement $xml)
    {
        if (false === $filters = $xml->xpath('//config:filters/config:filter')) {
            return;
        }
        try {
            $filterConfig = $this->container->getParameter("Thelia.parser.filters");
        } catch (ParameterNotFoundException $e) {
            $filterConfig = array();
        }

        foreach ($filters as $filter) {
            $filterConfig[$this->getAttributeAsPhp($filter, "name")] = $this->getAttributeAsPhp($filter, "class");
        }

        $this->container->setParameter("Thelia.parser.filters", $filterConfig);
    }