Set internal configuration variables according to 
        the input parameters

def _set_command_line_arguments(self, args):
        """
        Set internal configuration variables according to 
        the input parameters
        """
        Global.LOGGER.debug("setting command line arguments")

        if args.VERBOSE:
            Global.LOGGER.debug("verbose mode active")
            Global.CONFIG_MANAGER.log_level = logging.DEBUG
            Global.LOGGER_INSTANCE.reconfigure_log_level()

        if args.STATS > 0:
            Global.LOGGER.debug(f"stats requested every {args.STATS} seconds")
            Global.CONFIG_MANAGER.show_stats = True
            Global.CONFIG_MANAGER.stats_timeout = args.STATS

        if args.INTERVAL > 0:
            Global.LOGGER.debug(f"setting sleep interval to {args.INTERVAL} milliseconds")
            Global.CONFIG_MANAGER.sleep_interval = float(args.INTERVAL)/1000

        if args.TRACE:
            Global.LOGGER.debug("tracing mode active")
            Global.CONFIG_MANAGER.tracing_mode = True
            Global.CONFIG_MANAGER.log_level = logging.DEBUG
            Global.LOGGER_INSTANCE.reconfigure_log_level()

        if  args.MESSAGEINTERVAL is not None and args.MESSAGEINTERVAL > 0:
            Global.LOGGER.debug(f"setting message fetcher sleep interval to {args.MESSAGEINTERVAL/10} milliseconds")
            Global.CONFIG_MANAGER.message_fetcher_sleep_interval =  float(args.MESSAGEINTERVAL)/10000
            Global.CONFIG_MANAGER.fixed_message_fetcher_interval = True

        Global.LOGGER.debug(f"recipes to be parsed: {args.FILENAME}")
        Global.CONFIG_MANAGER.recipes = (args.FILENAME)