protected function validateOptions()
    {
        if (!$this->hasOption('root_path') || empty($this->getOption('root_path'))) {
            throw new \common_exception_MissingParameter('root_path', __CLASS__);
        }
        if (!$this->hasOption('file_path') || empty($this->getOption('file_path'))) {
            throw new \common_exception_MissingParameter('file_path', __CLASS__);
        }
    }