Vert.x Simple Telnet Server - command handler

gistfile1.groovy

// Regular expression to verify/extract pathnames from commands
PATH_ELEM = "[A-Za-z0-9.-]+"
PATH = "(/?$PATH_ELEM(/$PATH_ELEM)*/?|/)"

// Commands handler
bus.registerHandler("commands") {
    msg ->
    def cmd = msg.body.command
    switch (cmd) {
        case ~$/cd( $PATH)?/$:
            def path = cmd.size() > 3 ? cmd[3..-1] : ""
            msg.reply(cd(path, msg.body.cid));
            break;
        case ~$/ls( $PATH)?/$:
            def path = cmd.size() > 3 ? cmd[3..-1] : ""
            msg.reply(ls(path, msg.body.cid));
            break;
        case ~$/mkdir $PATH/$:
            def path = cmd[6..-1]
            msg.reply(mkdir(path, msg.body.cid));
            break;
        case ~$/quit/$:
            msg.reply([status: "ACTION", action: "QUIT", message: "Goodbye!!!"]);
            break;
        default:
            msg.reply([status: "ERROR", message: "### ERROR: Sorry, this command is unrecognized!"]);
    }
}