Example usage for java.util Enumeration hasMoreElements

List of usage examples for java.util Enumeration hasMoreElements

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Introduction

In this page you can find the example usage for java.util Enumeration hasMoreElements.

Prototype

boolean hasMoreElements();

Source Link

Document

Tests if this enumeration contains more elements.

Usage

From source file:org.sonews.Application.java

/**
 * The main entrypoint.//from www.  ja va2s.  c o  m
 *
 * @param args
 * @throws Exception
 */
public static void main(String[] args) throws Exception {
    System.out.println(VERSION);
    Thread.currentThread().setName("Mainthread");

    // Command line arguments
    boolean async = false;
    boolean feed = false; // Enable feeding?
    boolean purger = false; // Enable message purging?
    int port = -1;

    for (int n = 0; n < args.length; n++) {
        switch (args[n]) {
        case "-async": {
            async = true;
            break;
        }
        case "-c":
        case "-config": {
            Config.inst().set(Config.LEVEL_CLI, Config.CONFIGFILE, args[++n]);
            System.out.println("Using config file " + args[n]);
            break;
        }
        case "-C":
        case "-context": {
            // FIXME: Additional context files
            n++;
            break;
        }
        case "-dumpjdbcdriver": {
            System.out.println("Available JDBC drivers:");
            Enumeration<Driver> drvs = DriverManager.getDrivers();
            while (drvs.hasMoreElements()) {
                System.out.println(drvs.nextElement());
            }
            return;
        }
        case "-feed": {
            feed = true;
            break;
        }
        case "-h":
        case "-help": {
            printArguments();
            return;
        }
        case "-p": {
            port = Integer.parseInt(args[++n]);
            break;
        }
        case "-plugin-storage": {
            System.out.println("Warning: -plugin-storage is not implemented!");
            break;
        }
        case "-purger": {
            purger = true;
            break;
        }
        case "-v":
        case "-version":
            // Simply return as the version info is already printed above
            return;
        }
    }

    ApplicationContext context = new AnnotationConfigApplicationContext(Application.class);
    context = new FileSystemXmlApplicationContext(new String[] { "sonews.xml" }, context);

    // Enable storage backend
    StorageProvider sprov = context.getBean("storageProvider", StorageProvider.class);
    StorageManager.enableProvider(sprov);

    ChannelLineBuffers.allocateDirect();

    // Add shutdown hook
    Runtime.getRuntime().addShutdownHook(new ShutdownHook());

    // Start the listening daemon
    if (port <= 0) {
        port = Config.inst().get(Config.PORT, 119);
    }

    NNTPDaemon daemon = context.getBean(NNTPDaemon.class);
    daemon.setPort(port);
    daemon.start();

    // Start Connections purger thread...
    Connections.getInstance().start();

    // Start feeds
    if (feed) {
        FeedManager.startFeeding();
    }

    if (purger) {
        Purger purgerDaemon = new Purger();
        purgerDaemon.start();
    }

    // Wait for main thread to exit (setDaemon(false))
    daemon.join();
}

From source file:codeswarm.CodeSwarmConfig.java

/**
 *
 * @param args/*from   w w w .  j ava  2s .c o  m*/
 */
public static void main(String[] args) {
    if (args.length > 0) {
        CodeSwarmConfig config = null;
        try {
            config = new CodeSwarmConfig(args[0]);
            Enumeration<?> en = config.p.propertyNames();
            while (en.hasMoreElements()) {
                String key = (String) en.nextElement();
                String value = config.p.getProperty(key);
                logger.debug(key + "=" + value);
            }
        } catch (IOException e) {
            System.err.println("Failed due to exception: " + e.getMessage());
        }
    } else {
        System.err.println("Requires config file.");
    }
}

From source file:ModifyModelSample.java

public static void main(String args[]) {
    JFrame frame = new JFrame("Modifying Model");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    Container contentPane = frame.getContentPane();

    // Fill model
    final DefaultListModel model = new DefaultListModel();
    for (int i = 0, n = labels.length; i < n; i++) {
        model.addElement(labels[i]);// w ww  .  j a  va 2  s . co  m
    }
    JList jlist = new JList(model);
    JScrollPane scrollPane1 = new JScrollPane(jlist);
    contentPane.add(scrollPane1, BorderLayout.WEST);

    final JTextArea textArea = new JTextArea();
    textArea.setEditable(false);
    JScrollPane scrollPane2 = new JScrollPane(textArea);
    contentPane.add(scrollPane2, BorderLayout.CENTER);

    ListDataListener listDataListener = new ListDataListener() {
        public void contentsChanged(ListDataEvent listDataEvent) {
            appendEvent(listDataEvent);
        }

        public void intervalAdded(ListDataEvent listDataEvent) {
            appendEvent(listDataEvent);
        }

        public void intervalRemoved(ListDataEvent listDataEvent) {
            appendEvent(listDataEvent);
        }

        private void appendEvent(ListDataEvent listDataEvent) {
            StringWriter sw = new StringWriter();
            PrintWriter pw = new PrintWriter(sw);
            switch (listDataEvent.getType()) {
            case ListDataEvent.CONTENTS_CHANGED:
                pw.print("Type: Contents Changed");
                break;
            case ListDataEvent.INTERVAL_ADDED:
                pw.print("Type: Interval Added");
                break;
            case ListDataEvent.INTERVAL_REMOVED:
                pw.print("Type: Interval Removed");
                break;
            }
            pw.print(", Index0: " + listDataEvent.getIndex0());
            pw.print(", Index1: " + listDataEvent.getIndex1());
            DefaultListModel theModel = (DefaultListModel) listDataEvent.getSource();
            Enumeration elements = theModel.elements();
            pw.print(", Elements: ");
            while (elements.hasMoreElements()) {
                pw.print(elements.nextElement());
                pw.print(",");
            }
            pw.println();
            textArea.append(sw.toString());
        }
    };

    model.addListDataListener(listDataListener);

    // Setup buttons
    JPanel jp = new JPanel(new GridLayout(2, 1));
    JPanel jp1 = new JPanel(new FlowLayout(FlowLayout.CENTER, 1, 1));
    JPanel jp2 = new JPanel(new FlowLayout(FlowLayout.CENTER, 1, 1));
    jp.add(jp1);
    jp.add(jp2);
    JButton jb = new JButton("add F");
    jp1.add(jb);
    jb.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent actionEvent) {
            model.add(0, "First");
        }
    });
    jb = new JButton("addElement L");
    jp1.add(jb);
    jb.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent actionEvent) {
            model.addElement("Last");
        }
    });
    jb = new JButton("insertElementAt M");
    jp1.add(jb);
    jb.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent actionEvent) {
            int size = model.getSize();
            model.insertElementAt("Middle", size / 2);
        }
    });
    jb = new JButton("set F");
    jp1.add(jb);
    jb.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent actionEvent) {
            int size = model.getSize();
            if (size != 0)
                model.set(0, "New First");
        }
    });
    jb = new JButton("setElementAt L");
    jp1.add(jb);
    jb.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent actionEvent) {
            int size = model.getSize();
            if (size != 0)
                model.setElementAt("New Last", size - 1);
        }
    });
    jb = new JButton("load 10");
    jp1.add(jb);
    jb.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent actionEvent) {
            for (int i = 0, n = labels.length; i < n; i++) {
                model.addElement(labels[i]);
            }
        }
    });
    jb = new JButton("clear");
    jp2.add(jb);
    jb.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent actionEvent) {
            model.clear();
        }
    });
    jb = new JButton("remove F");
    jp2.add(jb);
    jb.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent actionEvent) {
            int size = model.getSize();
            if (size != 0)
                model.remove(0);
        }
    });
    jb = new JButton("removeAllElements");
    jp2.add(jb);
    jb.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent actionEvent) {
            model.removeAllElements();
        }
    });
    jb = new JButton("removeElement 'Last'");
    jp2.add(jb);
    jb.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent actionEvent) {
            model.removeElement("Last");
        }
    });
    jb = new JButton("removeElementAt M");
    jp2.add(jb);
    jb.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent actionEvent) {
            int size = model.getSize();
            if (size != 0)
                model.removeElementAt(size / 2);
        }
    });
    jb = new JButton("removeRange FM");
    jp2.add(jb);
    jb.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent actionEvent) {
            int size = model.getSize();
            if (size != 0)
                model.removeRange(0, size / 2);
        }
    });
    contentPane.add(jp, BorderLayout.SOUTH);
    frame.setSize(640, 300);
    frame.setVisible(true);
}

From source file:createSod.java

/**
 * @param args//from   w  ww  .j a v a  2 s . c om
 * @throws CMSException 
 */
public static void main(String[] args) throws Exception {

    try {
        CommandLine options = verifyArgs(args);
        String privateKeyLocation = options.getOptionValue("privatekey");
        String keyPassword = options.getOptionValue("keypass");
        String certificate = options.getOptionValue("certificate");
        String sodContent = options.getOptionValue("content");
        String sod = "";
        if (options.hasOption("out")) {
            sod = options.getOptionValue("out");
        }

        // CHARGEMENT DU FICHIER PKCS#12

        KeyStore ks = null;
        char[] password = null;

        Security.addProvider(new BouncyCastleProvider());
        try {
            ks = KeyStore.getInstance("PKCS12");
            // Password pour le fichier personnal_nyal.p12
            password = keyPassword.toCharArray();
            ks.load(new FileInputStream(privateKeyLocation), password);
        } catch (Exception e) {
            System.out.println("Erreur: fichier " + privateKeyLocation
                    + " n'est pas un fichier pkcs#12 valide ou passphrase incorrect");
            return;
        }

        // RECUPERATION DU COUPLE CLE PRIVEE/PUBLIQUE ET DU CERTIFICAT PUBLIQUE

        X509Certificate cert = null;
        PrivateKey privatekey = null;
        PublicKey publickey = null;

        try {
            Enumeration en = ks.aliases();
            String ALIAS = "";
            Vector vectaliases = new Vector();

            while (en.hasMoreElements())
                vectaliases.add(en.nextElement());
            String[] aliases = (String[]) (vectaliases.toArray(new String[0]));
            for (int i = 0; i < aliases.length; i++)
                if (ks.isKeyEntry(aliases[i])) {
                    ALIAS = aliases[i];
                    break;
                }
            privatekey = (PrivateKey) ks.getKey(ALIAS, password);
            cert = (X509Certificate) ks.getCertificate(ALIAS);
            publickey = ks.getCertificate(ALIAS).getPublicKey();
        } catch (Exception e) {
            e.printStackTrace();
            return;
        }

        // Chargement du certificat  partir du fichier

        InputStream inStream = new FileInputStream(certificate);
        CertificateFactory cf = CertificateFactory.getInstance("X.509");
        cert = (X509Certificate) cf.generateCertificate(inStream);
        inStream.close();

        // Chargement du fichier qui va tre sign

        File file_to_sign = new File(sodContent);
        byte[] buffer = new byte[(int) file_to_sign.length()];
        DataInputStream in = new DataInputStream(new FileInputStream(file_to_sign));
        in.readFully(buffer);
        in.close();

        // Chargement des certificats qui seront stocks dans le fichier .p7
        // Ici, seulement le certificat personnal_nyal.cer sera associ.
        // Par contre, la chane des certificats non.

        ArrayList certList = new ArrayList();
        certList.add(cert);
        CertStore certs = CertStore.getInstance("Collection", new CollectionCertStoreParameters(certList),
                "BC");

        CMSSignedDataGenerator signGen = new CMSSignedDataGenerator();

        // privatekey correspond  notre cl prive rcupre du fichier PKCS#12
        // cert correspond au certificat publique personnal_nyal.cer
        // Le dernier argument est l'algorithme de hachage qui sera utilis

        signGen.addSigner(privatekey, cert, CMSSignedDataGenerator.DIGEST_SHA1);
        signGen.addCertificatesAndCRLs(certs);
        CMSProcessable content = new CMSProcessableByteArray(buffer);

        // Generation du fichier CMS/PKCS#7
        // L'argument deux permet de signifier si le document doit tre attach avec la signature
        //     Valeur true:  le fichier est attach (c'est le cas ici)
        //     Valeur false: le fichier est dtach

        CMSSignedData signedData = signGen.generate(content, true, "BC");
        byte[] signeddata = signedData.getEncoded();

        // Ecriture du buffer dans un fichier.   

        if (sod.equals("")) {
            System.out.print(signeddata.toString());
        } else {
            FileOutputStream envfos = new FileOutputStream(sod);
            envfos.write(signeddata);
            envfos.close();
        }

    } catch (OptionException oe) {
        HelpFormatter formatter = new HelpFormatter();
        formatter.printHelp(NAME, getOptions());
        System.exit(-1);
    } catch (Exception e) {
        e.printStackTrace();
        return;
    }

}

From source file:com.bluexml.tools.miscellaneous.PrepareSIDEModulesMigration.java

/**
 * @param args//from ww  w.  j a  v a2 s  .  c o m
 */
public static void main(String[] args) {
    boolean inplace = false;

    String workspace = "/Users/davidabad/workspaces/SIDE-Modules/";
    String frameworkmodulesPath = "/Volumes/Data/SVN/side/HEAD/S-IDE/FrameworksModules/trunk/";
    String classifier_base = "enterprise";
    String version_base = "3.4.6";
    String classifier_target = "enterprise";
    String version_target = "3.4.11";
    String frameworkmodulesInplace = "/Volumes/Data/SVN/projects/Ifremer/IfremerV5/src/modules/mavenProjects";

    Properties props = new Properties();
    try {
        InputStream resourceAsStream = PrepareSIDEModulesMigration.class
                .getResourceAsStream("config.properties");
        if (resourceAsStream != null) {
            props.load(resourceAsStream);

            inplace = Boolean.parseBoolean(props.getProperty("inplace", Boolean.toString(inplace)));
            workspace = props.getProperty("workspace", workspace);
            frameworkmodulesPath = props.getProperty("frameworkmodulesPath", frameworkmodulesPath);
            classifier_base = props.getProperty("classifier_base", classifier_base);
            version_base = props.getProperty("version_base", version_base);
            classifier_target = props.getProperty("classifier_target", classifier_target);
            version_target = props.getProperty("version_target", version_target);
            frameworkmodulesInplace = props.getProperty("frameworkmodulesInplace", frameworkmodulesInplace);
        } else {
            System.out.println("no configuration founded in classpath config.properties");
        }

    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
        return;
    }

    System.out.println("properties :");
    Enumeration<?> propertyNames = props.propertyNames();
    while (propertyNames.hasMoreElements()) {
        String nextElement = propertyNames.nextElement().toString();
        System.out.println("\t " + nextElement + " : " + props.getProperty(nextElement));
    }

    File workspaceFile = new File(workspace);

    File targetHome = new File(workspaceFile, MIGRATION_FOLDER);
    if (targetHome.exists()) {
        try {
            FileUtils.deleteDirectory(targetHome);
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
            throw new RuntimeException(e);
        }
    }

    final String versionInProjectName = getVersionInProjectName(classifier_base, version_base);
    String versionInProjectName2 = getVersionInProjectName(classifier_target, version_target);

    if (frameworkmodulesPath.contains(",")) {
        // this is a list of paths
        String[] split = frameworkmodulesPath.split(",");
        for (String string : split) {
            if (StringUtils.trimToNull(string) != null) {
                executeInpath(inplace, string, classifier_base, version_base, classifier_target, version_target,
                        frameworkmodulesInplace, workspaceFile, versionInProjectName, versionInProjectName2);
            }
        }
    } else {
        executeInpath(inplace, frameworkmodulesPath, classifier_base, version_base, classifier_target,
                version_target, frameworkmodulesInplace, workspaceFile, versionInProjectName,
                versionInProjectName2);
    }

    System.out.println("Job's done !");
    System.out.println("Please check " + MIGRATION_FOLDER);
    System.out.println(
            "If all is ok you can use commit.sh in a terminal do : cd " + MIGRATION_FOLDER + "; sh commit.sh");
    System.out.println(
            "This script will create new svn projet and commit resources, add 'target' to svn:ignore ...");

}

From source file:kilim.tools.DumpClass.java

public static void main(String[] args) throws IOException {
    String name = args.length == 2 ? args[1] : args[0];

    if (name.endsWith(".jar")) {
        try {/*from w w  w  .  j av  a 2s.c  om*/
            Enumeration<JarEntry> e = new JarFile(name).entries();
            while (e.hasMoreElements()) {
                ZipEntry en = (ZipEntry) e.nextElement();
                String n = en.getName();
                if (!n.endsWith(".class"))
                    continue;
                n = n.substring(0, n.length() - 6).replace('/', '.');
                new DumpClass(n);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    } else {
        new DumpClass(name);
    }
}

From source file:ReadTemp.java

/**
 * Method main//from   ww w.  j av  a 2 s  . c om
 *
 *
 * @param args
 *
 * @throws OneWireException
 * @throws OneWireIOException
 *
 */
public static void main(String[] args) throws OneWireIOException, OneWireException {
    boolean usedefault = false;
    DSPortAdapter access = null;
    String adapter_name = null;
    String port_name = null;

    variableNames = new HashMap();

    if ((args == null) || (args.length < 1)) {
        try {
            access = OneWireAccessProvider.getDefaultAdapter();

            if (access == null)
                throw new Exception();
        } catch (Exception e) {
            System.out.println("Couldn't get default adapter!");
            printUsageString();

            return;
        }

        usedefault = true;
    }

    if (!usedefault) {
        StringTokenizer st = new StringTokenizer(args[0], "_");

        if (st.countTokens() != 2) {
            printUsageString();

            return;
        }

        adapter_name = st.nextToken();
        port_name = st.nextToken();

        System.out.println("Adapter Name: " + adapter_name);
        System.out.println("Port Name: " + port_name);
    }

    if (access == null) {
        try {
            access = OneWireAccessProvider.getAdapter(adapter_name, port_name);
        } catch (Exception e) {
            System.out.println("That is not a valid adapter/port combination.");

            Enumeration en = OneWireAccessProvider.enumerateAllAdapters();

            while (en.hasMoreElements()) {
                DSPortAdapter temp = (DSPortAdapter) en.nextElement();

                System.out.println("Adapter: " + temp.getAdapterName());

                Enumeration f = temp.getPortNames();

                while (f.hasMoreElements()) {
                    System.out.println("   Port name : " + ((String) f.nextElement()));
                }
            }

            return;
        }
    }

    boolean scan = false;

    if (args.length > 1) {
        if (args[1].compareTo("--scan") == 0)
            scan = true;
    } else {
        populateVariableNames();
    }

    while (true) {
        access.adapterDetected();
        access.targetAllFamilies();
        access.beginExclusive(true);
        access.reset();
        access.setSearchAllDevices();

        boolean next = access.findFirstDevice();

        if (!next) {
            System.out.println("Could not find any iButtons!");

            return;
        }

        while (next) {
            OneWireContainer owc = access.getDeviceContainer();

            boolean isTempContainer = false;
            TemperatureContainer tc = null;

            try {
                tc = (TemperatureContainer) owc;
                isTempContainer = true;
            } catch (Exception e) {
                tc = null;
                isTempContainer = false; //just to reiterate
            }

            if (isTempContainer) {
                String id = owc.getAddressAsString();
                if (scan) {
                    System.out.println("= Temperature Sensor Found: " + id);
                } else {

                    double high = 0.0;
                    double low = 0.0;
                    byte[] state = tc.readDevice();

                    boolean selectable = tc.hasSelectableTemperatureResolution();

                    if (selectable)
                        try {
                            tc.setTemperatureResolution(0.0625, state);
                        } catch (Exception e) {
                            System.out.println("= Could not set resolution for " + id + ": " + e.toString());
                        }

                    try {
                        tc.writeDevice(state);
                    } catch (Exception e) {
                        System.out.println("= Could not write device state, all changes lost.");
                        System.out.println("= Exception occurred for " + id + ": " + e.toString());
                    }

                    boolean conversion = false;
                    try {
                        tc.doTemperatureConvert(state);
                        conversion = true;
                    } catch (Exception e) {
                        System.out.println("= Could not complete temperature conversion...");
                        System.out.println("= Exception occurred for " + id + ": " + e.toString());
                    }

                    if (conversion) {
                        state = tc.readDevice();

                        double temp = tc.getTemperature(state);
                        if (temp < 84) {
                            double temp_f = (9.0 / 5.0) * temp + 32;
                            setVariable(id, Double.toString(temp_f));
                        }
                        System.out.println("= Reported temperature from " + (String) variableNames.get(id) + "("
                                + id + "):" + temp);
                    }
                }
            }
            next = access.findNextDevice();
        }
        if (!scan) {
            try {
                Thread.sleep(60 * 5 * 1000);
            } catch (Exception e) {
            }
        } else {
            System.exit(0);
        }
    }
}

From source file:PropsToXML.java

/**
 * <p>Provide a static entry point for testing.</p>
 *//* ww  w  .j a  v  a  2s  .  co  m*/
public static void main(String[] args) {
    if (args.length != 2) {
        System.out.println("Usage: java TestXMLProperties " + "[XML input document] [XML output document]");
        System.exit(0);
    }

    try {
        // Create and load properties
        System.out.println("Reading XML properties from " + args[0]);
        XMLProperties props = new XMLProperties();
        props.load(new FileInputStream(args[0]));

        // Print out properties and values
        System.out.println("\n\n---- Property Values ----");
        Enumeration names = props.propertyNames();
        while (names.hasMoreElements()) {
            String name = (String) names.nextElement();
            String value = props.getProperty(name);
            System.out.println("Property Name: " + name + " has value " + value);
        }

        // Store properties
        System.out.println("\n\nWriting XML properies to " + args[1]);
        props.store(new FileOutputStream(args[1]), "Testing XMLProperties class");
    } catch (Exception e) {
        e.printStackTrace();
    }
}

From source file:maui.main.MauiModelBuilder.java

/**
 * The main method.  /*from   w  w w.java 2s  .com*/
 */
public static void main(String[] ops) {

    MauiModelBuilder modelBuilder = new MauiModelBuilder();

    try {

        modelBuilder.setOptions(ops);

        // Output what options are used
        if (modelBuilder.getDebug() == true) {
            System.err.print("Building model with options: ");
            String[] optionSettings = modelBuilder.getOptions();
            for (String optionSetting : optionSettings) {
                System.err.print(optionSetting + " ");
            }
            System.err.println();
        }

        HashSet<String> fileNames = modelBuilder.collectStems();
        modelBuilder.buildModel(fileNames);

        if (modelBuilder.getDebug() == true) {
            System.err.print("Model built. Saving the model...");
        }

        modelBuilder.saveModel();

        System.err.print("Done!");

    } catch (Exception e) {

        // Output information on how to use this class
        e.printStackTrace();
        System.err.println(e.getMessage());
        System.err.println("\nOptions:\n");
        Enumeration<Option> en = modelBuilder.listOptions();
        while (en.hasMoreElements()) {
            Option option = (Option) en.nextElement();
            System.err.println(option.synopsis());
            System.err.println(option.description());
        }
    }
}

From source file:maui.main.MauiTopicExtractor.java

/**
 * The main method.  /*from   ww w.  ja v  a 2 s.co  m*/
 */
public static void main(String[] ops) {

    MauiTopicExtractor topicExtractor = new MauiTopicExtractor();
    try {
        // Checking and Setting Options selected by the user:
        topicExtractor.setOptions(ops);
        System.err.print("Extracting keyphrases with options: ");

        // Reading Options, which were set above and output them:
        String[] optionSettings = topicExtractor.getOptions();
        for (int i = 0; i < optionSettings.length; i++) {
            System.err.print(optionSettings[i] + " ");
        }
        System.err.println();

        // Loading selected Model:
        System.err.println("-- Loading the model... ");
        topicExtractor.loadModel();

        // Extracting Keyphrases from all files in the selected directory
        topicExtractor.extractKeyphrases(topicExtractor.collectStems());

    } catch (Exception e) {

        // Output information on how to use this class
        e.printStackTrace();
        System.err.println(e.getMessage());
        System.err.println("\nOptions:\n");
        Enumeration<Option> en = topicExtractor.listOptions();
        while (en.hasMoreElements()) {
            Option option = (Option) en.nextElement();
            System.err.println(option.synopsis());
            System.err.println(option.description());
        }
    }
}