Examples with Options org.jline.builtins.Options used on opensource projects

Example 36 with Options

use of org.jline.builtins.Options in project felix by apache.

the class Telnet method telnetd.

public void telnetd(CommandSession session, String[] argv) throws IOException {
    final String[] usage = { "telnetd - start simple telnet server", "Usage: telnetd [-i ip] [-p port] start | stop | status", "  -i --ip=INTERFACE        listen interface (default=127.0.0.1)", "  -p --port=PORT           listen port (default=" + defaultPort + ")", "  -? --help                show help" };
    Options opt = Options.compile(usage).parse(argv);
    List<String> args = opt.args();
    if (opt.isSet("help") || args.isEmpty()) {
        opt.usage(System.err);
        return;
    }
    String command = args.get(0);
    if ("start".equals(command)) {
        if (portListener != null) {
            throw new IllegalStateException("telnetd is already running on port " + port);
        }
        ip = opt.get("ip");
        port = opt.getNumber("port");
        start(session);
        status();
    } else if ("stop".equals(command)) {
        if (portListener == null) {
            throw new IllegalStateException("telnetd is not running.");
        }
        stop();
    } else if ("status".equals(command)) {
        status();
    } else {
        throw opt.usageError("bad command: " + command);
    }
}

Example 37 with Options

use of org.jline.builtins.Options in project karaf by apache.

the class Procedural method doNot.

protected Boolean doNot(CommandSession session, Process process, Object[] argv) throws Exception {
    String[] usage = { "not -  return the opposite condition", "Usage: not { condition }", "  -? --help                    Show help" };
    Options opt = parseOptions(session, usage, argv);
    List<Function> functions = getFunctions(opt);
    if (functions == null || functions.size() != 1) {
        process.err().println("usage: not { condition }");
        process.error(2);
        return null;
    }
    return !isTrue(session, functions.get(0));
}

Example 38 with Options

use of org.jline.builtins.Options in project karaf by apache.

the class Procedural method doTry.

protected Object doTry(CommandSession session, Process process, Object[] argv) throws Exception {
    String[] usage = { "try -  try / catch / finally construct", "Usage: try { try-action } [ [catch] { catch-action } [ [finally] { finally-action } ]  ]", "  -? --help                    Show help" };
    Options opt = parseOptions(session, usage, argv);
    Function tryAction = null;
    Function catchFunction = null;
    Function finallyFunction = null;
    int step = 0;
    boolean error = false;
    for (Object obj : opt.argObjects()) {
        if (tryAction == null) {
            if (obj instanceof Function) {
                tryAction = (Function) obj;
            } else {
                error = true;
                break;
            }
            step = 1;
        } else if ("catch".equals(obj)) {
            if (step != 1) {
                error = true;
                break;
            }
            step = 2;
        } else if ("finally".equals(obj)) {
            if (step != 1 && step != 3) {
                error = true;
                break;
            }
            step = 4;
        } else if (step == 1 || step == 2) {
            if (obj instanceof Function) {
                catchFunction = (Function) obj;
            } else {
                error = true;
                break;
            }
            step = 3;
        } else if (step == 3 || step == 4) {
            if (obj instanceof Function) {
                finallyFunction = (Function) obj;
            } else {
                error = true;
                break;
            }
            step = 5;
        } else {
            error = true;
            break;
        }
    }
    error |= tryAction == null;
    error |= catchFunction == null && finallyFunction == null;
    if (error) {
        process.err().println("usage: try { try-action } [ [catch] { catch-action } [ [finally] { finally-action } ] ]");
        process.error(2);
        return null;
    }
    try {
        return tryAction.execute(session, null);
    } catch (BreakException b) {
        throw b;
    } catch (Exception e) {
        session.put("exception", e);
        if (catchFunction != null) {
            catchFunction.execute(session, null);
        }
        return null;
    } finally {
        if (finallyFunction != null) {
            finallyFunction.execute(session, null);
        }
    }
}

Example 39 with Options

use of org.jline.builtins.Options in project karaf by apache.

the class Procedural method doWhile.

protected Object doWhile(CommandSession session, Process process, Object[] argv) throws Exception {
    String[] usage = { "while -  while loop", "Usage: while { condition } [do] { action }", "  -? --help                    Show help" };
    Options opt = parseOptions(session, usage, argv);
    Function condition = null;
    Function action = null;
    int step = 0;
    boolean error = false;
    for (Object obj : opt.argObjects()) {
        if (condition == null) {
            if (obj instanceof Function) {
                condition = (Function) obj;
            } else {
                error = true;
                break;
            }
            step = 1;
        } else if ("do".equals(obj)) {
            if (step != 1) {
                error = true;
                break;
            }
            step = 2;
        } else if (step == 1 || step == 2) {
            if (obj instanceof Function) {
                action = (Function) obj;
            } else {
                error = true;
                break;
            }
            step = 3;
        } else {
            error = true;
            break;
        }
    }
    error |= condition == null;
    error |= action == null;
    if (error) {
        process.err().println("usage: while { condition } [do] { action }");
        process.error(2);
        return null;
    }
    while (isTrue(session, condition)) {
        try {
            action.execute(session, null);
        } catch (BreakException b) {
            break;
        } catch (ContinueException c) {
            continue;
        }
    }
    return null;
}

Example 40 with Options

use of org.jline.builtins.Options in project karaf by apache.

the class Procedural method doIf.

protected Object doIf(CommandSession session, Process process, Object[] argv) throws Exception {
    String[] usage = { "if -  if / then / else construct", "Usage: if {condition} [then] {if-action} [elif {cond} [then] {elif-action}]... [else] {else-action}", "  -? --help                    Show help" };
    Options opt = parseOptions(session, usage, argv);
    List<Function> conditions = new ArrayList<>();
    List<Function> actions = new ArrayList<>();
    Function elseFunction = null;
    int step = 0;
    boolean error = false;
    for (Object obj : opt.argObjects()) {
        switch(step) {
            case 0:
                if (obj instanceof Function) {
                    conditions.add((Function) obj);
                } else {
                    error = true;
                }
                step = 1;
                break;
            case 1:
                if ("then".equals(obj)) {
                    step = 2;
                    break;
                }
            case 2:
                if (obj instanceof Function) {
                    actions.add((Function) obj);
                    step = 3;
                } else {
                    error = true;
                }
                break;
            case 3:
                if ("elif".equals(obj)) {
                    step = 4;
                } else if ("else".equals(obj)) {
                    step = 7;
                } else if (obj instanceof Function) {
                    elseFunction = (Function) obj;
                    step = 8;
                } else {
                    error = true;
                }
                break;
            case 4:
                if (obj instanceof Function) {
                    conditions.add((Function) obj);
                } else {
                    error = true;
                }
                step = 5;
                break;
            case 5:
                if ("then".equals(obj)) {
                    step = 6;
                    break;
                }
            case 6:
                if (obj instanceof Function) {
                    actions.add((Function) obj);
                    step = 3;
                } else {
                    error = true;
                }
                break;
            case 7:
                if (obj instanceof Function) {
                    elseFunction = (Function) obj;
                    step = 8;
                } else {
                    error = true;
                }
                break;
            case 8:
                error = true;
                break;
        }
        if (error) {
            break;
        }
    }
    error |= conditions.isEmpty();
    error |= conditions.size() != actions.size();
    if (error) {
        process.err().println("usage: if {condition} [then] {if-action} [elif {elif-action}]... [else] {else-action}");
        process.error(2);
        return null;
    }
    for (int i = 0, length = conditions.size(); i < length; ++i) {
        if (isTrue(session, conditions.get(i))) {
            return actions.get(i).execute(session, null);
        }
    }
    if (elseFunction != null) {
        return elseFunction.execute(session, null);
    }
    return null;
}