public function readProjectConfigFile($dir, $configFile)
    {
        $result = null;
        $filename = $dir . '/' . $this->config->get('service.project_config_dir') . '/' . $configFile;
        if (file_exists($filename)) {
            $parser = new Parser();
            $result = $parser->parse(file_get_contents($filename));
        }

        return $result;
    }