setCommandHandler(CommandNames.RETR, new RetrCommandHandler());
        setCommandHandler(CommandNames.RMD, new RmdCommandHandler());
        setCommandHandler(CommandNames.RNFR, new RnfrCommandHandler());
        setCommandHandler(CommandNames.RNTO, new RntoCommandHandler());
        setCommandHandler(CommandNames.SITE, new SiteCommandHandler());
        setCommandHandler(CommandNames.SMNT, new SmntCommandHandler());
        setCommandHandler(CommandNames.STAT, new StatCommandHandler());
        setCommandHandler(CommandNames.STOR, new StorCommandHandler());
        setCommandHandler(CommandNames.STOU, new StouCommandHandler());
        setCommandHandler(CommandNames.STRU, new StruCommandHandler());
        setCommandHandler(CommandNames.SYST, new SystCommandHandler());
        setCommandHandler(CommandNames.TYPE, new TypeCommandHandler());
        setCommandHandler(CommandNames.USER, new UserCommandHandler());
        setCommandHandler(CommandNames.XPWD, new PwdCommandHandler());

        setCommandHandler(CommandNames.APPE, new AppeCommandHandler());
        setCommandHandler(CommandNames.CWD, new CwdCommandHandler());
        setCommandHandler(CommandNames.CDUP, new CdupCommandHandler());
        setCommandHandler(CommandNames.DELE, new DeleCommandHandler());
        setCommandHandler(CommandNames.EPRT, new EprtCommandHandler());
        setCommandHandler(CommandNames.EPSV, new EpsvCommandHandler());
        setCommandHandler(CommandNames.HELP, new HelpCommandHandler());
        setCommandHandler(CommandNames.LIST, new ListCommandHandler());
        setCommandHandler(CommandNames.MKD, new MkdCommandHandler());
        setCommandHandler(CommandNames.MODE, new ModeCommandHandler());
        setCommandHandler(CommandNames.NLST, new NlstCommandHandler());