protected function loadConfigFromFile($path, $appType = StaticApplicationInterface::APP_TYPE_WEB)
    {
        if (!isset($this->_reader)) {
            $reader = new ConfigReader([
                'path' => $path,
                'appType' => $appType,
            ]);
            $this->_reader = $reader;
        }
        return $this->_reader->data;
    }