public function bootstrap()
    {
        # set application timezone
        date_default_timezone_set($this->app->config->getApp('timezone'));

        # set application error log path
        ini_set("error_log", $this->app->logFilePath());

        # set application session name
        ini_set('session.name', 'planet_session');

        # set application session storage path
        session_save_path(realpath($this->app->sessionDirectoryPath()));
    }