def METHOD_NAME(self, args):
    '''ucenter command parser'''
    usage = "usage: ucenter <set|start|restart|stop>"
    if len(args) == 0:
        print(usage)
        return
    if args[0] == "set":
        self.ucenter_settings.command(args[1:])
    elif args[0] == "start":
        self.start_listener()
    elif args[0] == "stop":
        self.stop_listener()
    elif args[0] == "restart":
        self.stop_listener()
        self.start_listener()
    else:
        print(usage)