Example usage for org.apache.commons.cli2.commandline Parser parse

List of usage examples for org.apache.commons.cli2.commandline Parser parse

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Introduction

In this page you can find the example usage for org.apache.commons.cli2.commandline Parser parse.

Prototype

public CommandLine parse(final String[] arguments) throws OptionException

Source Link

Document

Parse the arguments according to the specified options and properties.

Usage

From source file:it.jnrpe.server.JNRPEServer.java

/**
 * Parses the command line./*from ww  w  .  j  a va2 s.c o m*/
 * 
 * @param vsArgs
 *            The command line
 * @return The parsed command line
 */
private static CommandLine parseCommandLine(final String[] vsArgs) {
    try {
        Group opts = configureCommandLine();
        // configure a HelpFormatter
        HelpFormatter hf = new HelpFormatter();

        // configure a parser
        Parser p = new Parser();
        p.setGroup(opts);
        p.setHelpFormatter(hf);
        // p.setHelpTrigger("--help");
        return p.parse(vsArgs);
    } catch (OptionException oe) {
        printUsage(oe);
    } catch (Exception e) {
        e.printStackTrace();
        // Should never happen...
    }
    return null;
}

From source file:com.ibm.jaql.util.shell.JaqlShellArguments.java

@SuppressWarnings("unchecked")
static JaqlShellArguments parseArgs(String... args) {
    // option builders
    final DefaultOptionBuilder obuilder = new DefaultOptionBuilder();
    final ArgumentBuilder abuilder = new ArgumentBuilder();
    final GroupBuilder gbuilder = new GroupBuilder();

    // create standard options
    Option optHelp = obuilder.withShortName("h").withShortName("?").withLongName("help")
            .withDescription("print this message").create();

    Option optJars = obuilder.withShortName("j").withLongName("jars")
            .withDescription(//from w w w.  j  a v a 2s.co  m
                    "comma-separated list of jar files to include user defined expressions or data stores")
            .withArgument(abuilder.withName("args").withMinimum(1).withMaximum(1).create()).create();

    Option optSearchPath = obuilder.withShortName("jp").withLongName("jaql-path")
            .withDescription("colon seperated list of all search path entries")
            .withArgument(abuilder.withName("args").withMinimum(1).withMaximum(1).create()).create();

    Option optBatch = obuilder.withShortName("b").withLongName("batch")
            .withDescription("run in batch mode (i.e., do not read from stdin)").create();

    Option optOutOptions = obuilder.withShortName("o").withLongName("outoptions")
            .withDescription("output options: json, del and xml or an output IO descriptor. "
                    + "This option is ignored when not running in batch mode.")
            .withArgument(abuilder.withName("outoptions").withMinimum(1).withMaximum(1).create()).create();

    Option optEval = obuilder.withShortName("e").withLongName("eval")
            .withDescription("evaluate Jaql expression")
            .withArgument(abuilder.withName("expr").withMinimum(1).withMaximum(1).create()).create();

    // create mini-cluster options
    Option optCluster = obuilder.withShortName("c").withLongName("cluster")
            .withDescription("use existing cluster (i.e., do not launch a mini-cluster)").create();

    Option optNumNodes = obuilder.withShortName("n").withLongName("no-nodes")
            .withDescription("mini-cluster option: number of nodes to spawn")
            .withArgument(abuilder.withName("arg").withMinimum(1).withMaximum(1)
                    .withValidator(NumberValidator.getIntegerInstance()).create())
            .create();

    Option optDir = obuilder.withShortName("d").withLongName("hdfs-dir")
            .withDescription("mini-cluster option: root HDFs directory")
            .withArgument(abuilder.withName("arg").withMinimum(1).withMaximum(1).create()).create();

    Group clusterOptions = gbuilder.withName("Cluster options").withOption(optCluster).withOption(optDir)
            .withOption(optNumNodes).create();

    // create input files option
    Option optInputFiles = abuilder.withName("file").withDescription("list of input files").withMinimum(0)
            .create();

    Option optLog = obuilder.withShortName("l").withLongName("log")
            .withDescription("log options: json, del and xml or an output IO descriptor. ")
            .withArgument(abuilder.withName("arg").withMinimum(1).withMaximum(1).create()).create();

    // combine all options
    Group options = gbuilder.withName("options").withOption(optHelp).withOption(optJars)
            .withOption(optSearchPath).withOption(optBatch).withOption(optLog).withOption(optOutOptions)
            .withOption(optEval).withOption(optInputFiles).withOption(clusterOptions).create();

    // parse and print help if necessary
    CommandLine cl;
    try {
        Parser parser = new Parser();
        parser.setGroup(options);
        cl = parser.parse(args);
    } catch (OptionException e) {
        printHelpAndExit(e, null, options);
        return null;
    }
    if (cl.hasOption(optHelp)) {
        printHelpAndExit(null, options);
    }

    // validate arguments
    JaqlShellArguments result = new JaqlShellArguments();

    // mini-cluster options         
    if (cl.hasOption(optCluster)) {
        result.useExistingCluster = true;
    }
    if (cl.hasOption(optDir)) {
        if (result.useExistingCluster) {
            printHelpAndExit("Options " + optCluster.getPreferredName() + " and " + optDir.getPreferredName()
                    + " are mutually exclusive", options);
        }
        result.hdfsDir = (String) cl.getValue(optDir);
    }
    if (cl.hasOption(optNumNodes)) {
        if (result.useExistingCluster) {
            printHelpAndExit("Options " + optCluster.getPreferredName() + " and "
                    + optNumNodes.getPreferredName() + " are mutually exclusive", options);
        }
        result.numNodes = ((Number) cl.getValue(optNumNodes)).intValue();
    }

    // jar files
    if (cl.hasOption(optJars)) {
        result.jars = ((String) cl.getValue(optJars)).split(",");
        for (String jar : result.jars) {
            if (!new File(jar).exists()) {
                printHelpAndExit("Jar file " + jar + " not found", options);
            }
        }
    }

    // search path directories
    if (cl.hasOption(optSearchPath)) {
        result.searchPath = ((String) cl.getValue(optSearchPath)).split(":");
        for (String dir : result.searchPath) {
            if (!new File(dir).exists() || !new File(dir).isDirectory()) {
                printHelpAndExit("Search-path entry " + dir + " not found or is no directory", options);
            }
        }
    }

    if (cl.hasOption(optBatch)) {
        result.batchMode = true;
        if (cl.hasOption(optOutOptions)) {
            String format = (String) cl.getValue(optOutOptions);
            try {
                result.outputAdapter = getOutputAdapter(format);
            } catch (Exception e) {
                printHelpAndExit(e,
                        "\"" + format + "\" is neither a valid output format nor a valid IO descriptor",
                        options);
            }
        }
    }

    // input
    if (cl.hasOption(optEval)) {
        String eval = (String) cl.getValue(optEval);
        if (!eval.endsWith(";"))
            eval += ";";
        result.addInputStream(new ByteArrayInputStream(eval.getBytes()));
    }
    if (cl.hasOption(optInputFiles)) {
        List<String> files = (List<String>) cl.getValues(optInputFiles);
        for (String file : files) {
            try {
                result.addInputStream(new FileInputStream(file));
            } catch (FileNotFoundException e) {
                printHelpAndExit(e, "Input file " + file + " not found", options);
            }
        }
    }

    // error log
    if (cl.hasOption(optLog)) {
        String path = (String) cl.getValue(optLog);
        try {
            BufferedJsonRecord logFD = new BufferedJsonRecord();
            logFD.add(Adapter.TYPE_NAME, new JsonString("local"));
            logFD.add(Adapter.LOCATION_NAME, new JsonString(path));
            OutputAdapter oa = (OutputAdapter) JaqlUtil.getAdapterStore().output.getAdapter(logFD);
            result.logAdapter = oa;
        } catch (Exception e) {
            printHelpAndExit(e, "\"" + path + "\" invalid", options);
        }
    }

    if (!result.batchMode) {
        result.addStdin();
    }

    return result;
}

From source file:com.martinkampjensen.thesis.Main.java

private static CommandLine parse(String[] args, Group group) {
    final Parser parser = new Parser();
    parser.setGroup(group);//from w w  w  .  j ava2s  . c  o  m
    CommandLine cmdLine = null;

    try {
        cmdLine = parser.parse(args);
    } catch (OptionException e) {
        System.out.println(e.getMessage());
        exit(StatusCode.ARGUMENT);
    }

    return cmdLine;
}

From source file:com.elex.dmp.lda.InMemoryCollapsedVariationalBayes0.java

public static int main2(String[] args, Configuration conf) throws Exception {
    DefaultOptionBuilder obuilder = new DefaultOptionBuilder();
    ArgumentBuilder abuilder = new ArgumentBuilder();
    GroupBuilder gbuilder = new GroupBuilder();

    Option helpOpt = DefaultOptionCreator.helpOption();

    Option inputDirOpt = obuilder.withLongName("input").withRequired(true)
            .withArgument(abuilder.withName("input").withMinimum(1).withMaximum(1).create())
            .withDescription("The Directory on HDFS containing the collapsed, properly formatted files having "
                    + "one doc per line")
            .withShortName("i").create();

    Option dictOpt = obuilder.withLongName("dictionary").withRequired(false)
            .withArgument(abuilder.withName("dictionary").withMinimum(1).withMaximum(1).create())
            .withDescription("The path to the term-dictionary format is ... ").withShortName("d").create();

    Option dfsOpt = obuilder.withLongName("dfs").withRequired(false)
            .withArgument(abuilder.withName("dfs").withMinimum(1).withMaximum(1).create())
            .withDescription("HDFS namenode URI").withShortName("dfs").create();

    Option numTopicsOpt = obuilder.withLongName("numTopics").withRequired(true)
            .withArgument(abuilder.withName("numTopics").withMinimum(1).withMaximum(1).create())
            .withDescription("Number of topics to learn").withShortName("top").create();

    Option outputTopicFileOpt = obuilder.withLongName("topicOutputFile").withRequired(true)
            .withArgument(abuilder.withName("topicOutputFile").withMinimum(1).withMaximum(1).create())
            .withDescription("File to write out p(term | topic)").withShortName("to").create();

    Option outputDocFileOpt = obuilder.withLongName("docOutputFile").withRequired(true)
            .withArgument(abuilder.withName("docOutputFile").withMinimum(1).withMaximum(1).create())
            .withDescription("File to write out p(topic | docid)").withShortName("do").create();

    Option alphaOpt = obuilder.withLongName("alpha").withRequired(false)
            .withArgument(abuilder.withName("alpha").withMinimum(1).withMaximum(1).withDefault("0.1").create())
            .withDescription("Smoothing parameter for p(topic | document) prior").withShortName("a").create();

    Option etaOpt = obuilder.withLongName("eta").withRequired(false)
            .withArgument(abuilder.withName("eta").withMinimum(1).withMaximum(1).withDefault("0.1").create())
            .withDescription("Smoothing parameter for p(term | topic)").withShortName("e").create();

    Option maxIterOpt = obuilder.withLongName("maxIterations").withRequired(false)
            .withArgument(/*from  w  ww . ja va 2  s. com*/
                    abuilder.withName("maxIterations").withMinimum(1).withMaximum(1).withDefault(10).create())
            .withDescription("Maximum number of training passes").withShortName("m").create();

    Option modelCorpusFractionOption = obuilder.withLongName("modelCorpusFraction").withRequired(false)
            .withArgument(abuilder.withName("modelCorpusFraction").withMinimum(1).withMaximum(1)
                    .withDefault(0.0).create())
            .withShortName("mcf").withDescription("For online updates, initial value of |model|/|corpus|")
            .create();

    Option burnInOpt = obuilder.withLongName("burnInIterations").withRequired(false)
            .withArgument(
                    abuilder.withName("burnInIterations").withMinimum(1).withMaximum(1).withDefault(5).create())
            .withDescription("Minimum number of iterations").withShortName("b").create();

    Option convergenceOpt = obuilder.withLongName("convergence").withRequired(false)
            .withArgument(
                    abuilder.withName("convergence").withMinimum(1).withMaximum(1).withDefault("0.0").create())
            .withDescription("Fractional rate of perplexity to consider convergence").withShortName("c")
            .create();

    Option reInferDocTopicsOpt = obuilder.withLongName("reInferDocTopics").withRequired(false)
            .withArgument(abuilder.withName("reInferDocTopics").withMinimum(1).withMaximum(1).withDefault("no")
                    .create())
            .withDescription("re-infer p(topic | doc) : [no | randstart | continue]").withShortName("rdt")
            .create();

    Option numTrainThreadsOpt = obuilder
            .withLongName("numTrainThreads").withRequired(false).withArgument(abuilder
                    .withName("numTrainThreads").withMinimum(1).withMaximum(1).withDefault("1").create())
            .withDescription("number of threads to train with").withShortName("ntt").create();

    Option numUpdateThreadsOpt = obuilder.withLongName("numUpdateThreads").withRequired(false)
            .withArgument(abuilder.withName("numUpdateThreads").withMinimum(1).withMaximum(1).withDefault("1")
                    .create())
            .withDescription("number of threads to update the model with").withShortName("nut").create();

    Option verboseOpt = obuilder.withLongName("verbose").withRequired(false)
            .withArgument(
                    abuilder.withName("verbose").withMinimum(1).withMaximum(1).withDefault("false").create())
            .withDescription("print verbose information, like top-terms in each topic, during iteration")
            .withShortName("v").create();

    Group group = gbuilder.withName("Options").withOption(inputDirOpt).withOption(numTopicsOpt)
            .withOption(alphaOpt).withOption(etaOpt).withOption(maxIterOpt).withOption(burnInOpt)
            .withOption(convergenceOpt).withOption(dictOpt).withOption(reInferDocTopicsOpt)
            .withOption(outputDocFileOpt).withOption(outputTopicFileOpt).withOption(dfsOpt)
            .withOption(numTrainThreadsOpt).withOption(numUpdateThreadsOpt)
            .withOption(modelCorpusFractionOption).withOption(verboseOpt).create();

    try {
        Parser parser = new Parser();

        parser.setGroup(group);
        parser.setHelpOption(helpOpt);
        CommandLine cmdLine = parser.parse(args);
        if (cmdLine.hasOption(helpOpt)) {
            CommandLineUtil.printHelp(group);
            return -1;
        }

        String inputDirString = (String) cmdLine.getValue(inputDirOpt);
        String dictDirString = cmdLine.hasOption(dictOpt) ? (String) cmdLine.getValue(dictOpt) : null;
        int numTopics = Integer.parseInt((String) cmdLine.getValue(numTopicsOpt));
        double alpha = Double.parseDouble((String) cmdLine.getValue(alphaOpt));
        double eta = Double.parseDouble((String) cmdLine.getValue(etaOpt));
        int maxIterations = Integer.parseInt((String) cmdLine.getValue(maxIterOpt));
        int burnInIterations = (Integer) cmdLine.getValue(burnInOpt);
        double minFractionalErrorChange = Double.parseDouble((String) cmdLine.getValue(convergenceOpt));
        int numTrainThreads = Integer.parseInt((String) cmdLine.getValue(numTrainThreadsOpt));
        int numUpdateThreads = Integer.parseInt((String) cmdLine.getValue(numUpdateThreadsOpt));
        String topicOutFile = (String) cmdLine.getValue(outputTopicFileOpt);
        String docOutFile = (String) cmdLine.getValue(outputDocFileOpt);
        String reInferDocTopics = (String) cmdLine.getValue(reInferDocTopicsOpt);
        boolean verbose = Boolean.parseBoolean((String) cmdLine.getValue(verboseOpt));
        double modelCorpusFraction = (Double) cmdLine.getValue(modelCorpusFractionOption);

        long start = System.nanoTime();

        if (conf.get("fs.default.name") == null) {
            String dfsNameNode = (String) cmdLine.getValue(dfsOpt);
            conf.set("fs.default.name", dfsNameNode);
        }
        String[] terms = loadDictionary(dictDirString, conf);
        logTime("dictionary loading", System.nanoTime() - start);
        start = System.nanoTime();
        Matrix corpus = loadVectors(inputDirString, conf);
        logTime("vector seqfile corpus loading", System.nanoTime() - start);
        start = System.nanoTime();
        InMemoryCollapsedVariationalBayes0 cvb0 = new InMemoryCollapsedVariationalBayes0(corpus, terms,
                numTopics, alpha, eta, numTrainThreads, numUpdateThreads, modelCorpusFraction, 1234);
        logTime("cvb0 init", System.nanoTime() - start);

        start = System.nanoTime();
        cvb0.setVerbose(verbose);
        cvb0.iterateUntilConvergence(minFractionalErrorChange, maxIterations, burnInIterations);
        logTime("total training time", System.nanoTime() - start);

        if ("randstart".equalsIgnoreCase(reInferDocTopics)) {
            cvb0.inferDocuments(0.0, 100, true);
        } else if ("continue".equalsIgnoreCase(reInferDocTopics)) {
            cvb0.inferDocuments(0.0, 100, false);
        }

        start = System.nanoTime();
        cvb0.writeModel(new Path(topicOutFile));
        DistributedRowMatrixWriter.write(new Path(docOutFile), conf, cvb0.docTopicCounts);
        logTime("printTopics", System.nanoTime() - start);
    } catch (OptionException e) {
        log.error("Error while parsing options", e);
        CommandLineUtil.printHelp(group);
    }
    return 0;
}

From source file:it.jnrpe.plugins.TestCommandLineParsing.java

@Test
public void testNoArgumentsOption() throws Exception {
    ClassLoader cl = TestCommandLineParsing.class.getClassLoader();
    PluginDefinition pluginDef = PluginRepositoryUtil.parseXmlPluginDefinition(cl,
            cl.getResourceAsStream("check_mysql_plugin.xml"));

    GroupBuilder gBuilder = new GroupBuilder();

    for (PluginOption po : pluginDef.getOptions()) {
        gBuilder = gBuilder.withOption(po.toOption());
    }/*ww  w.  java  2 s .c  o  m*/

    Group group = gBuilder.create();
    Parser p = new Parser();
    p.setGroup(group);
    CommandLine cli = p.parse(new String[] { "--hostname", "$ARG1$", "--port", "$ARG2$", "--database", "$ARG3$",
            "--user", "$ARG4$", "--password", "$ARG5$", "--check-slave" });

    Assert.assertTrue(cli.hasOption("--check-slave"));
}

From source file:it.jnrpe.server.console.PluginCommand.java

public boolean execute(final String[] args) throws Exception {

    Parser p = new Parser();
    p.setGroup(getCommandLineGroup());/* w  ww .ja v a2s . c  om*/
    try {
        p.parse(args);
    } catch (Exception e) {
        getConsole().println();
        // getConsole().println("\u001B[1mERROR:\u001B[0m " +
        // e.getMessage());
        getConsole().println(highlight("ERROR: ") + e.getMessage());
        getConsole().println();

        printHelp();
        return false;
    }
    PluginProxy plugin = (PluginProxy) pluginRepository.getPlugin(pluginName);
    InjectionUtils.inject(plugin, context);
    //plugin.setContext(context);
    ReturnValue retVal = plugin.execute(args);

    getConsole().println(retVal.getMessage());
    return false;
}

From source file:com.tamingtext.tagrecommender.CountStackOverflowTags.java

public boolean parseArgs(String[] args) {
    DefaultOptionBuilder obuilder = new DefaultOptionBuilder();
    ArgumentBuilder abuilder = new ArgumentBuilder();
    GroupBuilder gbuilder = new GroupBuilder();
    Option helpOpt = DefaultOptionCreator.helpOption();

    Option inputFileOpt = obuilder.withLongName("inputFile").withRequired(true)
            .withArgument(abuilder.withName("inputFile").withMinimum(1).withMaximum(1).create())
            .withDescription("The input file").withShortName("i").create();

    Option outputFileOpt = obuilder.withLongName("outputFile").withRequired(true)
            .withArgument(abuilder.withName("outputFile").withMinimum(1).withMaximum(1).create())
            .withDescription("The output file").withShortName("o").create();

    Option limitOpt = obuilder.withLongName("limit").withRequired(false)
            .withArgument(abuilder.withName("limit").withMinimum(1).withMaximum(1).create())
            .withDescription("Emit this many of the most frequent tags").withShortName("l").create();

    Option cutoffOpt = obuilder.withLongName("cutoff").withRequired(false)
            .withArgument(abuilder.withName("cutoff").withMinimum(1).withMaximum(1).create())
            .withDescription("Drop tags with a count less than this number").withShortName("c").create();

    Group group = gbuilder.withName("Options").withOption(inputFileOpt).withOption(outputFileOpt)
            .withOption(limitOpt).withOption(cutoffOpt).create();

    try {//  w w  w  . ja va  2 s.c  o  m
        Parser parser = new Parser();
        parser.setGroup(group);
        CommandLine cmdLine = parser.parse(args);

        if (cmdLine.hasOption(helpOpt)) {
            CommandLineUtil.printHelp(group);
            return false;
        }

        inputFile = new File((String) cmdLine.getValue(inputFileOpt));
        countFile = new File((String) cmdLine.getValue(outputFileOpt));

        if (cmdLine.hasOption(limitOpt)) {
            limit = Integer.parseInt((String) cmdLine.getValue(limitOpt));
        }

        if (cmdLine.hasOption(cutoffOpt)) {
            cutoff = Integer.parseInt((String) cmdLine.getValue(cutoffOpt));
        }

    } catch (OptionException e) {
        log.error("Command-line option Exception", e);
        CommandLineUtil.printHelp(group);
        return false;
    }

    validate();
    return true;
}

From source file:com.tamingtext.tagrecommender.TestStackOverflowTagger.java

public boolean parseArgs(String[] args) {
    DefaultOptionBuilder obuilder = new DefaultOptionBuilder();
    ArgumentBuilder abuilder = new ArgumentBuilder();
    GroupBuilder gbuilder = new GroupBuilder();
    Option helpOpt = DefaultOptionCreator.helpOption();

    Option inputFileOpt = obuilder.withLongName("inputFile").withRequired(true)
            .withArgument(abuilder.withName("inputFile").withMinimum(1).withMaximum(1).create())
            .withDescription("The input file").withShortName("i").create();

    Option countFileOpt = obuilder.withLongName("countFile").withRequired(true)
            .withArgument(abuilder.withName("countFile").withMinimum(1).withMaximum(1).create())
            .withDescription("The tag count file").withShortName("c").create();

    Option outputFileOpt = obuilder.withLongName("outputFile").withRequired(true)
            .withArgument(abuilder.withName("outputFile").withMinimum(1).withMaximum(1).create())
            .withDescription("The output file").withShortName("c").create();

    Option solrUrlOpt = obuilder.withLongName("solrUrl").withRequired(true)
            .withArgument(abuilder.withName("solrUrl").withMinimum(1).withMaximum(1).create())
            .withDescription("URL of the solr server").withShortName("s").create();

    Group group = gbuilder.withName("Options").withOption(inputFileOpt).withOption(countFileOpt)
            .withOption(outputFileOpt).withOption(solrUrlOpt).create();

    try {//from  ww w  .j av  a2 s . c o  m
        Parser parser = new Parser();
        parser.setGroup(group);
        CommandLine cmdLine = parser.parse(args);

        if (cmdLine.hasOption(helpOpt)) {
            CommandLineUtil.printHelp(group);
            return false;
        }

        inputFile = new File((String) cmdLine.getValue(inputFileOpt));
        countFile = new File((String) cmdLine.getValue(countFileOpt));
        outputFile = new File((String) cmdLine.getValue(outputFileOpt));
        solrUrl = (String) cmdLine.getValue(solrUrlOpt);
        client = new TagRecommenderClient(solrUrl);
    } catch (OptionException e) {
        log.error("Command-line option Exception", e);
        CommandLineUtil.printHelp(group);
        return false;
    } catch (MalformedURLException e) {
        log.error("MalformedURLException", e);
        return false;
    }

    validate();
    return true;
}

From source file:com.tamingtext.tagrecommender.ExtractStackOverflowData.java

public boolean parseArgs(String[] args) {
    DefaultOptionBuilder obuilder = new DefaultOptionBuilder();
    ArgumentBuilder abuilder = new ArgumentBuilder();
    GroupBuilder gbuilder = new GroupBuilder();
    Option helpOpt = DefaultOptionCreator.helpOption();

    Option inputFileOpt = obuilder.withLongName("inputFile").withRequired(true)
            .withArgument(abuilder.withName("inputFile").withMinimum(1).withMaximum(1).create())
            .withDescription("The input file").withShortName("i").create();

    Option trainingOutputOpt = obuilder.withLongName("trainingOutputFile").withRequired(true)
            .withArgument(abuilder.withName("trainingOutputFile").withMinimum(1).withMaximum(1).create())
            .withDescription("The training data output file").withShortName("tr").create();

    Option testOutputOpt = obuilder.withLongName("testOutputFile").withRequired(true)
            .withArgument(abuilder.withName("testOutputFile").withMinimum(1).withMaximum(1).create())
            .withDescription("The test data output file").withShortName("te").create();

    Option trainingDataSizeOpt = obuilder.withLongName("trainingDataSize").withRequired(false)
            .withArgument(abuilder.withName("trainingDataSize").withMinimum(1).withMaximum(1).create())
            .withDescription("The number of questions to extract for training data").withShortName("trs")
            .create();//from w w  w  . ja va2s. com

    Option testDataSizeOpt = obuilder.withLongName("testDataSize").withRequired(false)
            .withArgument(abuilder.withName("testDataSize").withMinimum(1).withMaximum(1).create())
            .withDescription("The number of questions to extract for training data").withShortName("tes")
            .create();

    Group group = gbuilder.withName("Options").withOption(inputFileOpt).withOption(trainingOutputOpt)
            .withOption(testOutputOpt).withOption(trainingDataSizeOpt).withOption(testDataSizeOpt).create();

    try {
        Parser parser = new Parser();
        parser.setGroup(group);
        CommandLine cmdLine = parser.parse(args);

        if (cmdLine.hasOption(helpOpt)) {
            CommandLineUtil.printHelp(group);
            return false;
        }

        inputFile = new File((String) cmdLine.getValue(inputFileOpt));
        trainingOutputFile = new File((String) cmdLine.getValue(trainingOutputOpt));
        testOutputFile = new File((String) cmdLine.getValue(testOutputOpt));

        if (cmdLine.hasOption(trainingDataSizeOpt)) {
            trainingDataSize = Integer.parseInt((String) cmdLine.getValue(trainingDataSizeOpt));
        }

        if (cmdLine.hasOption(testDataSizeOpt)) {
            testDataSize = Integer.parseInt((String) cmdLine.getValue(testDataSizeOpt));
        }

    } catch (OptionException e) {
        log.error("Command-line option Exception", e);
        CommandLineUtil.printHelp(group);
        return false;
    }

    validate();
    return true;
}

From source file:com.digitalpebble.behemoth.tika.TikaDriver.java

public int run(String[] args) throws Exception {

    final FileSystem fs = FileSystem.get(getConf());
    GroupBuilder gBuilder = new GroupBuilder().withName("Options:");
    List<Option> options = new ArrayList<Option>();
    Option inputOpt = buildOption("input", "i", "The input path", true, true, null);
    options.add(inputOpt);/*from   www  . ja va 2 s.  c o  m*/
    Option outOpt = buildOption("output", "o", "The output path", true, true, null);
    options.add(outOpt);
    Option tikaOpt = buildOption("tikaProcessor", "t",
            "The fully qualified name of a TikaProcessor class that handles the extraction (optional)", true,
            false, null);
    options.add(tikaOpt);
    Option mimeTypeOpt = buildOption("mimeType", "m", "The mime type to use (optional)", true, false, "");
    options.add(mimeTypeOpt);
    for (Option opt : options) {
        gBuilder = gBuilder.withOption(opt);
    }

    Group group = gBuilder.create();

    try {
        Parser parser = new Parser();
        parser.setGroup(group);
        // TODO catch exceptions with parsing of opts
        CommandLine cmdLine = parser.parse(args);
        Path inputPath = new Path(cmdLine.getValue(inputOpt).toString());
        Path outputPath = new Path(cmdLine.getValue(outOpt).toString());
        String handlerName = null;
        if (cmdLine.hasOption(tikaOpt)) {
            handlerName = cmdLine.getValue(tikaOpt).toString();
        }

        JobConf job = new JobConf(getConf());
        job.setJarByClass(this.getClass());

        if (cmdLine.hasOption(mimeTypeOpt)) {
            String mimeType = cmdLine.getValue(mimeTypeOpt).toString();
            job.set(TikaConstants.TIKA_MIME_TYPE_KEY, mimeType);
        }

        if (handlerName != null && handlerName.equals("") == false) {
            job.set(TIKA_PROCESSOR_KEY, handlerName);
        }

        job.setJobName("Tika : " + inputPath.toString());

        job.setInputFormat(SequenceFileInputFormat.class);
        job.setOutputFormat(SequenceFileOutputFormat.class);

        job.setMapOutputKeyClass(Text.class);
        job.setMapOutputValueClass(BehemothDocument.class);
        job.setOutputKeyClass(Text.class);
        job.setOutputValueClass(BehemothDocument.class);

        job.setMapperClass(TikaMapper.class);

        boolean isFilterRequired = BehemothReducer.isRequired(job);
        if (isFilterRequired)
            job.setReducerClass(BehemothReducer.class);
        else {
            job.setNumReduceTasks(0);
        }

        FileInputFormat.addInputPath(job, inputPath);
        FileOutputFormat.setOutputPath(job, outputPath);

        try {
            long start = System.currentTimeMillis();
            JobClient.runJob(job);
            long finish = System.currentTimeMillis();
            if (log.isInfoEnabled()) {
                log.info("TikaDriver completed. Timing: " + (finish - start) + " ms");
            }
        } catch (Exception e) {
            log.error("Exception", e);
            return -1;
            // don't delete the output as some of it could be used
            // fs.delete(outputPath, true);
        } finally {
        }

    } catch (OptionException e) {
        log.error("OptionException", e.getMessage());
        HelpFormatter formatter = new HelpFormatter();
        formatter.setGroup(group);
        formatter.print();
        return -1;
    }

    return 0;
}