Examples of com.persistit.util.ArgParser

com.persistit.util.ArgParser

A simple command line argument parser that provides primitive type conversion and value checking. An application passes a template and the command line argument array to the constructor of this class. The constructor validates the argument list. Subsequently the application can access specific fields from the command line using the ArgParser's accessor methods.

If the command line includes the argument -? then ArgParser displays a summary of permissible arguments and sets its UsageOnly property to true. The calling application should simply exit if isUsageonly is true for the constructed ArgParser.
@author peter @version 1.0

                final Command command = COMMANDS.get(commandName);
                if (command != null) {
                    list.remove(0);
                    try {
                        final String[] args = list.toArray(new String[list.size()]);
                        final ArgParser ap = new ArgParser(commandName, args, command.argTemplate).strict();
                        if (!ap.isUsageOnly()) {
                            final String result = command.execute(this, ap);
                            if (result != null) {
                                _writer.println(result);
                            }
                            _lastStatus += " - done";

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        }


    }


    public static void main(final String[] args) throws Exception {
        final ArgParser ap = new ArgParser("VolumeHeader", args, ARGS_TEMPLATE).strict();
        if (ap.isUsageOnly()) {
            return;
        }
        final Task task = new VolumeInfoTask(ap.getStringValue("path"));
        task.setMessageWriter(new PrintWriter(System.out));
        task.runTask();
    }

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    public static void main(final String[] args) throws Exception {
        final String[] template = {
                "path||pathname of journal, e.g., /xxx/yyy/zzz_journal "
                        + "for files such as /xxx/yyy/zzz_journal.0000000000000047",
                "_flags|t|emit transaction details" };
        final ArgParser argParser = new ArgParser("RecoveryManager", args, template).strict();
        final Persistit persistit = new Persistit();
        persistit.initializeJournal();
        final RecoveryManager rman = new RecoveryManager(persistit);
        rman.init(argParser.getStringValue("path"));
        rman.analyze();
    }

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    public static void main(final String[] args) throws Exception {
        final String[] template = {
                "path||pathname of journal, e.g., /xxx/yyy/zzz_journal "
                        + "for files such as /xxx/yyy/zzz_journal.0000000000000047",
                "_flags|t|emit transaction details" };
        final ArgParser argParser = new ArgParser("RecoveryManager", args, template).strict();
        final Persistit persistit = new Persistit();
        persistit.initializeJournal();
        final RecoveryManager rman = new RecoveryManager(persistit);
        rman.init(argParser.getStringValue("path"));
        rman.analyze();
    }

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     * 
     * @param args
     * @throws Exception
     */
    public static void main(final String[] args) throws Exception {
        final ArgParser ap = new ArgParser("Persistit", args, ARG_TEMPLATE).strict();
        if (ap.isUsageOnly()) {
            return;
        }


        Persistit persistit = null;
        final String propertiesFileName = ap.getStringValue("properties");
        if (!propertiesFileName.isEmpty()) {
            persistit = new Persistit();
            persistit.setPropertiesFromFile(propertiesFileName);
            persistit.initialize();
        }
        final String scriptName = ap.getStringValue("script");


        final int cliport = ap.getIntValue("cliport");


        if (cliport > -1 && !propertiesFileName.isEmpty()) {
            throw new IllegalArgumentException("Specify only one: properties or cliport");
        }


        if (cliport > 1) {
            System.out.printf("Starting a Persistit CLI server on port %d\n", cliport);
            final Task task = CLI.cliserver(cliport);
            task.runTask();
            task.setPersistit(persistit);
        } else if (!scriptName.isEmpty()) {
            final BufferedReader reader = new BufferedReader(new FileReader(scriptName));
            final PrintWriter writer = new PrintWriter(System.out);
            CLI.runScript(persistit, reader, writer);
        } else {
            if (persistit == null) {
                throw new IllegalArgumentException("Must specify a properties file");
            }
            final boolean gui = ap.isFlag('g');
            final boolean icheck = ap.isFlag('i');
            final boolean wait = ap.isFlag('w');
            final boolean copy = ap.isFlag('c');


            try {
                if (gui) {
                    persistit.setupGUI(wait);
                }

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        final Command command = COMMANDS.get(commandName);
        if (command == null) {
            return null;
        }
        final Task task = command.createTask(persistit,
                new ArgParser(commandName, pieces.toArray(new String[pieces.size()]), command.argTemplate).strict());
        if (task != null) {
            task.setPersistit(persistit);
        }
        return task;
    }

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                final Command command = COMMANDS.get(commandName);
                if (command != null) {
                    list.remove(0);
                    try {
                        final String[] args = list.toArray(new String[list.size()]);
                        final ArgParser ap = new ArgParser(commandName, args, command.argTemplate).strict();
                        if (!ap.isUsageOnly()) {
                            final String result = command.execute(this, ap);
                            if (result != null) {
                                _writer.println(result);
                            }
                            _lastStatus += " - done";

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        @Override
        public String toString() {
            final StringBuilder sb = new StringBuilder(name);
            sb.append(Util.NEW_LINE);
            sb.append(new ArgParser(name, new String[0], argTemplate).strict());
            return sb.toString();
        }

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        final String commandName = pieces.remove(0);
        Command command = COMMANDS.get(commandName);
        if (command == null) {
            return null;
        }
        Task task = command.createTask(persistit, new ArgParser(commandName, pieces.toArray(new String[pieces.size()]),
                command.argTemplate).strict());
        if (task != null) {
            task.setPersistit(persistit);
        }
        return task;

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                final Command command = COMMANDS.get(commandName);
                if (command != null) {
                    list.remove(0);
                    try {
                        final String[] args = list.toArray(new String[list.size()]);
                        final ArgParser ap = new ArgParser(commandName, args, command.argTemplate).strict();
                        if (!ap.isUsageOnly()) {
                            String result = command.execute(this, ap);
                            if (result != null) {
                                _writer.println(result);
                            }
                            _lastStatus += " - done";

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Related Classes of com.persistit.util.ArgParser

com.persistit.CLI

com.persistit.CLI$Command

com.persistit.IOMeter

com.persistit.JournalManagerBench

com.persistit.JournalTool

com.persistit.Persistit

com.persistit.RecoveryManager

com.persistit.VolumeHeader

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