protected function loadConfigurationRecursive(ContainerBuilder $container, array $configuration)
    {
        foreach ($configuration as $values) {
            $loader = new XmlFileLoader($container, new FileLocator($values['path']));
            foreach ($values['configFiles'] as $configFile) {
                $loader->load($configFile);
            }
            if (array_key_exists('configuration', $values)) {
                $this->loadConfigurationRecursive($container, $values['configuration']);
            }
        }
    }