Example usage for java.io IOException printStackTrace

Introduction

In this page you can find the example usage for java.io IOException printStackTrace.

Prototype

public void printStackTrace()

Source Link

Document

Prints this throwable and its backtrace to the standard error stream.

Usage

From source file:ffx.autoparm.Minimize_2.java

/**
 * <p>/*from www  . j  a v  a 2  s.  c o m*/
 * main</p>
 *
 * @param args an array of {@link java.lang.String} objects.
 */
public static void main(String args[]) {
    try {
        Minimize_2 m = new Minimize_2("/home/gchattree/Research/Compounds/s_test3_compounds/famotidine/ttt.xyz",
                null);
        m.minimize(0.1);
    } catch (IOException e) {
        e.printStackTrace();
    }
}

From source file:com.yannick.GcmSender.java

public static void main(String[] args) {
    if (args.length < 1 || args.length > 2 || args[0] == null) {
        System.err.println("usage: ./gradlew run -Pargs=\"MESSAGE[,DEVICE_TOKEN]\"");
        System.err.println("");
        System.err.println(/*from ww  w .j  av  a2  s.  c om*/
                "Specify a test message to broadcast via GCM. If a device's GCM registration token is\n"
                        + "specified, the message will only be sent to that device. Otherwise, the message \n"
                        + "will be sent to all devices subscribed to the \"global\" topic.");
        System.err.println("");
        System.err.println(
                "Example (Broadcast):\n" + "On Windows:   .\\gradlew.bat run -Pargs=\"<Your_Message>\"\n"
                        + "On Linux/Mac: ./gradlew run -Pargs=\"<Your_Message>\"");
        System.err.println("");
        System.err.println("Example (Unicast):\n"
                + "On Windows:   .\\gradlew.bat run -Pargs=\"<Your_Message>,<Your_Token>\"\n"
                + "On Linux/Mac: ./gradlew run -Pargs=\"<Your_Message>,<Your_Token>\"");
        System.exit(1);
    }
    try {
        // Prepare JSON containing the GCM message content. What to send and where to send.
        JSONObject jGcmData = new JSONObject();
        JSONObject jData = new JSONObject();
        jData.put("message", args[0].trim());
        // Where to send GCM message.
        if (args.length > 1 && args[1] != null) {
            jGcmData.put("to", args[1].trim());
        } else {
            jGcmData.put("to", "/topics/global");
        }
        // What to send in GCM message.
        jGcmData.put("data", jData);

        // Create connection to send GCM Message request.
        URL url = new URL("https://android.googleapis.com/gcm/send");
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setRequestProperty("Authorization", "key=" + API_KEY);
        conn.setRequestProperty("Content-Type", "application/json");
        conn.setRequestMethod("POST");
        conn.setDoOutput(true);

        // Send GCM message content.
        OutputStream outputStream = conn.getOutputStream();
        outputStream.write(jGcmData.toString().getBytes());

        // Read GCM response.
        InputStream inputStream = conn.getInputStream();
        String resp = IOUtils.toString(inputStream);
        System.out.println(resp);
        System.out.println("Check your device/emulator for notification or logcat for "
                + "confirmation of the receipt of the GCM message.");
    } catch (IOException e) {
        System.out.println("Unable to send GCM message.");
        System.out.println("Please ensure that API_KEY has been replaced by the server "
                + "API key, and that the device's registration token is correct (if specified).");
        e.printStackTrace();
    }
}

From source file:lc.buyplus.gcmsender.GcmSender.java

public static void main(String[] args) throws JSONException {
    if (args.length < 1 || args.length > 2 || args[0] == null) {
        System.err.println("usage: ./gradlew run -Pmsg=\"MESSAGE\" [-Pto=\"DEVICE_TOKEN\"]");
        System.err.println("");
        System.err.println(/*from  w w w  .  j a  v  a 2  s  .co m*/
                "Specify a test message to broadcast via GCM. If a device's GCM registration token is\n"
                        + "specified, the message will only be sent to that device. Otherwise, the message \n"
                        + "will be sent to all devices subscribed to the \"global\" topic.");
        System.err.println("");
        System.err.println(
                "Example (Broadcast):\n" + "On Windows:   .\\gradlew.bat run -Pmsg=\"<Your_Message>\"\n"
                        + "On Linux/Mac: ./gradlew run -Pmsg=\"<Your_Message>\"");
        System.err.println("");
        System.err.println("Example (Unicast):\n"
                + "On Windows:   .\\gradlew.bat run -Pmsg=\"<Your_Message>\" -Pto=\"<Your_Token>\"\n"
                + "On Linux/Mac: ./gradlew run -Pmsg=\"<Your_Message>\" -Pto=\"<Your_Token>\"");
        System.exit(1);
    }
    try {
        // Prepare JSON containing the GCM message content. What to send and where to send.
        JSONObject jGcmData = new JSONObject();
        JSONObject jData = new JSONObject();
        jData.put("message", args[0].trim());
        // Where to send GCM message.
        if (args.length > 1 && args[1] != null) {
            jGcmData.put("to", args[1].trim());
        } else {
            jGcmData.put("to", "/topics/global");
        }
        // What to send in GCM message.
        jGcmData.put("data", jData);

        // Create connection to send GCM Message request.
        URL url = new URL("https://android.googleapis.com/gcm/send");
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setRequestProperty("Authorization", "key=" + API_KEY);
        conn.setRequestProperty("Content-Type", "application/json");
        conn.setRequestMethod("POST");
        conn.setDoOutput(true);

        // Send GCM message content.
        OutputStream outputStream = conn.getOutputStream();
        outputStream.write(jGcmData.toString().getBytes());

        // Read GCM response.
        InputStream inputStream = conn.getInputStream();
        String resp = IOUtils.toString(inputStream);
        System.out.println(resp);
        System.out.println("Check your device/emulator for notification or logcat for "
                + "confirmation of the receipt of the GCM message.");
    } catch (IOException e) {
        System.out.println("Unable to send GCM message.");
        System.out.println("Please ensure that API_KEY has been replaced by the server "
                + "API key, and that the device's registration token is correct (if specified).");
        e.printStackTrace();
    }
}

From source file:com.pinch.console.GcmSender.java

public static void main(String[] args) {
    //        if (args.length < 1 || args.length > 2 || args[0] == null) {
    //            System.err.println("usage: ./gradlew run -Pmsg=\"MESSAGE\" [-Pto=\"DEVICE_TOKEN\"]");
    //            System.err.println("");
    //            System.err.println("Specify a test message to broadcast via GCM. If a device's GCM registration token is\n" +
    //                    "specified, the message will only be sent to that device. Otherwise, the message \n" +
    //                    "will be sent to all devices subscribed to the \"global\" topic.");
    //            System.err.println("");
    //            System.err.println("Example (Broadcast):\n" +
    //                    "On Windows:   .\\gradlew.bat run -Pmsg=\"<Your_Message>\"\n" +
    //                    "On Linux/Mac: ./gradlew run -Pmsg=\"<Your_Message>\"");
    //            System.err.println("");
    //            System.err.println("Example (Unicast):\n" +
    //                    "On Windows:   .\\gradlew.bat run -Pmsg=\"<Your_Message>\" -Pto=\"<Your_Token>\"\n" +
    //                    "On Linux/Mac: ./gradlew run -Pmsg=\"<Your_Message>\" -Pto=\"<Your_Token>\"");
    //            System.exit(1);
    //        }/* w  w w  .  j  a  v  a  2  s. c  om*/
    try {
        // Prepare JSON containing the GCM message content. What to send and where to send.
        JSONObject jGcmData = new JSONObject();
        JSONObject jData = new JSONObject();
        jData.put("message", "Saurabh Garg signed up!!");
        jData.put("title", "New sign up!");
        // Where to send GCM message.
        //if (args.length > 1 && args[1] != null) {
        jGcmData.put("to",
                "dOEmVpNPTCY:APA91bEkeYfFMhAraF4d87SJu12oxDElUp6KW1r710KSKeuDpW31Cd5_WExUxT16KNquJ69wwDMlxd-3qoEIeDNJNU1XjyXiXztOqlKglB-zdOlszoXhX9zIYmYNV8d4vWkM0oPwjlk9");
        //            } else {
        //                jGcmData.put("to", "/topics/global");
        //            }
        // What to send in GCM message.
        jGcmData.put("data", jData);

        // Create connection to send GCM Message request.
        URL url = new URL("https://android.googleapis.com/gcm/send");
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setRequestProperty("Authorization", "key=" + API_KEY);
        conn.setRequestProperty("Content-Type", "application/json");
        conn.setRequestMethod("POST");
        conn.setDoOutput(true);

        // Send GCM message content.
        OutputStream outputStream = conn.getOutputStream();
        outputStream.write(jGcmData.toString().getBytes());

        // Read GCM response.
        InputStream inputStream = conn.getInputStream();
        String resp = IOUtils.toString(inputStream);
        System.out.println(resp);
        System.out.println("Check your device/emulator for notification or logcat for "
                + "confirmation of the receipt of the GCM message.");
    } catch (IOException e) {
        System.out.println("Unable to send GCM message.");
        System.out.println("Please ensure that API_KEY has been replaced by the server "
                + "API key, and that the device's registration token is correct (if specified).");
        e.printStackTrace();
    }
}

From source file:de.ipbhalle.metfusion.utilities.chemaxon.ChemAxonUtilities.java

public static void main(String[] args) {
    ChemAxonUtilities cau = new ChemAxonUtilities(true);
    URL url = cau.getClass().getResource("fcfp.xml");
    System.out.println("file -> " + url.getFile());
    System.out.println("path -> " + url.getPath());

    ECFP one = cau.generateECFPFromName("O=P(c1ccccc1)(c2ccccc2)C");
    ECFP two = cau.generateECFPFromName("O=P4(C1C3C2CC1C4C23)c5ccccc5");
    System.out.println("tan test -> " + (1 - one.getTanimoto(two)));

    ECFPParameters params = new ECFPParameters(new File(url.getFile()));
    ECFPFeatureLookup lookup = new ECFPFeatureLookup(params);
    MolHandler mh = null;/*from  w w w . j av a  2 s  .c  om*/
    try {
        mh = new MolHandler("O=P(c1ccccc1)(c2ccccc2)C");
        Molecule m = mh.getMolecule();
        lookup.processMolecule(m);
        int[] arr = one.toIntArray();
        for (int i = 0; i < arr.length; i++) {
            for (ECFPFeature f : lookup.getFeaturesFromIdentifier(arr[i])) {
                //System.out.println(f.getSubstructure().toFormat("SMARTS"));
                try {
                    System.out.println(MolExporter.exportToFormat(f.getSubstructure(), "SMARTS"));
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }
        }
    } catch (MolFormatException e1) {
        // TODO Auto-generated catch block
        e1.printStackTrace();
    }

    SmilesParser sp = new SmilesParser(DefaultChemObjectBuilder.getInstance());
    try {
        Fingerprinter fp = new Fingerprinter();

        IAtomContainer ac1 = sp.parseSmiles("O=P(c1ccccc1)(c2ccccc2)C");
        IAtomContainer ac2 = sp.parseSmiles("O=P4(C1C3C2CC1C4C23)c5ccccc5");
        float tan = Tanimoto.calculate(fp.getFingerprint(ac1), fp.getFingerprint(ac2));
        System.out.println("CDK tanimoto -> " + tan);
    } catch (InvalidSmilesException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (CDKException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

    ChemAxonUtilities cau2 = new ChemAxonUtilities(false);
    ECFP test = cau2.generateECFPFromMol(new File("/vol/massbank/Cache/PB/mol/PB000122.mol"));
    ECFP test2 = cau2.generateECFPFromMol(new File("/vol/massbank/Cache/PB/mol/PB000126.mol"));
    System.out.println("tanimoto dissimilarity -> " + test.getTanimoto(test2));
    System.out.println("tanimoto similarity -> " + (1 - test.getTanimoto(test2)));
}

From source file:gcm.play.android.samples.com.gcmquickstart.GcmSender.java

public static void main(String[] args) throws JSONException {
    if (args.length < 1 || args.length > 2 || args[0] == null) {
        System.err.println("usage: ./gradlew run -Pargs=\"MESSAGE[,DEVICE_TOKEN]\"");
        System.err.println("");
        System.err.println(//w ww.  j a  va  2  s.c  o m
                "Specify a test message to broadcast via GCM. If a device's GCM registration token is\n"
                        + "specified, the message will only be sent to that device. Otherwise, the message \n"
                        + "will be sent to all devices subscribed to the \"global\" topic.");
        System.err.println("");
        System.err.println(
                "Example (Broadcast):\n" + "On Windows:   .\\gradlew.bat run -Pargs=\"<Your_Message>\"\n"
                        + "On Linux/Mac: ./gradlew run -Pargs=\"<Your_Message>\"");
        System.err.println("");
        System.err.println("Example (Unicast):\n"
                + "On Windows:   .\\gradlew.bat run -Pargs=\"<Your_Message>,<Your_Token>\"\n"
                + "On Linux/Mac: ./gradlew run -Pargs=\"<Your_Message>,<Your_Token>\"");
        System.exit(1);
    }
    try {
        // Prepare JSON containing the GCM message content. What to send and where to send.
        JSONObject jGcmData = new JSONObject();
        JSONObject jData = new JSONObject();
        jData.put("message", args[0].trim());
        // Where to send GCM message.
        if (args.length > 1 && args[1] != null) {
            jGcmData.put("to", args[1].trim());
        } else {
            jGcmData.put("to", "/topics/global");
        }
        // What to send in GCM message.
        jGcmData.put("data", jData);

        // Create connection to send GCM Message request.
        URL url = new URL("https://android.googleapis.com/gcm/send");
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setRequestProperty("Authorization", "key=" + API_KEY);
        conn.setRequestProperty("Content-Type", "application/json");
        conn.setRequestMethod("POST");
        conn.setDoOutput(true);

        // Send GCM message content.
        OutputStream outputStream = conn.getOutputStream();
        outputStream.write(jGcmData.toString().getBytes());

        // Read GCM response.
        InputStream inputStream = conn.getInputStream();
        String resp = IOUtils.toString(inputStream);
        System.out.println(resp);
        System.out.println("Check your device/emulator for notification or logcat for "
                + "confirmation of the receipt of the GCM message.");
    } catch (IOException e) {
        System.out.println("Unable to send GCM message.");
        System.out.println("Please ensure that API_KEY has been replaced by the server "
                + "API key, and that the device's registration token is correct (if specified).");
        e.printStackTrace();
    }
}

From source file:com.pixa.gcmsender.GcmSender.java

public static void main(String[] args) {
    if (args.length < 1 || args.length > 2 || args[0] == null) {
        System.err.println("usage: ./gradlew run -Pmsg=\"MESSAGE\" [-Pto=\"DEVICE_TOKEN\"]");
        System.err.println("");
        System.err.println(/* w w  w .j ava  2  s  .c o m*/
                "Specify a test message to broadcast via GCM. If a device's GCM registration token is\n"
                        + "specified, the message will only be sent to that device. Otherwise, the message \n"
                        + "will be sent to all devices subscribed to the \"global\" topic.");
        System.err.println("");
        System.err.println(
                "Example (Broadcast):\n" + "On Windows:   .\\gradlew.bat run -Pmsg=\"<Your_Message>\"\n"
                        + "On Linux/Mac: ./gradlew run -Pmsg=\"<Your_Message>\"");
        System.err.println("");
        System.err.println("Example (Unicast):\n"
                + "On Windows:   .\\gradlew.bat run -Pmsg=\"<Your_Message>\" -Pto=\"<Your_Token>\"\n"
                + "On Linux/Mac: ./gradlew run -Pmsg=\"<Your_Message>\" -Pto=\"<Your_Token>\"");
        System.exit(1);
    }
    try {
        // Prepare JSON containing the GCM message content. What to send and where to send.
        JSONObject jGcmData = new JSONObject();
        JSONObject jData = new JSONObject();
        jData.put("message", args[0].trim());
        // Where to send GCM message.
        if (args.length > 1 && args[1] != null) {
            jGcmData.put("to", args[1].trim());
        } else {
            jGcmData.put("to", "/topics/global");
        }
        // What to send in GCM message.
        jGcmData.put("data", jData);

        // Create connection to send GCM Message request.
        URL url = new URL("https://android.googleapis.com/gcm/send");
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setRequestProperty("Authorization", "key=" + API_KEY);
        conn.setRequestProperty("Content-Type", "application/json");
        conn.setRequestMethod("POST");
        conn.setDoOutput(true);

        // Send GCM message content.
        OutputStream outputStream = conn.getOutputStream();
        outputStream.write(jGcmData.toString().getBytes());

        // Read GCM response.
        InputStream inputStream = conn.getInputStream();
        String resp = IOUtils.toString(inputStream);
        System.out.println(resp);
        System.out.println("Check your device/emulator for notification or logcat for "
                + "confirmation of the receipt of the GCM message.");
    } catch (IOException e) {
        System.out.println("Unable to send GCM message.");
        System.out.println("Please ensure that API_KEY has been replaced by the server "
                + "API key, and that the device's registration token is correct (if specified).");
        e.printStackTrace();
    }
}

From source file:markov.java

/**
 * @param args/*from w w  w .  j  a v  a 2s .c o  m*/
 */
public static void main(String[] args) {

    // hack: eclipse don't support IO redirection worth a shit
    // try {
    // System.setIn(new FileInputStream("./json"));
    // } catch (FileNotFoundException e1) {
    // // TODO Auto-generated catch block
    // e1.printStackTrace();
    // }

    boolean graphMode = false;
    boolean jsonMode = false;
    boolean jsonRecoverMode = false;
    boolean endNode = false;

    int count = -1;

    long n = 0;
    long sumOfSqr = 0;
    long sum = 0;

    for (String s : args) {

        if (!s.matches("^-[vegjJh]*(c[0-9]*)?$")) {
            System.out.println("invalid argument");
            return;
        }

        if (s.matches("^-.*h.*")) {
            System.out.println(HELP);
            return;
        }
        if (s.matches("^-.*v.*")) {
            verbose = true;
            log("verbose mode");
        }
        if (s.matches("^-.*g.*")) {
            graphMode = true;
            log("graph mode");
        }
        if (s.matches("^-.*j.*")) {
            jsonMode = true;
            log("json mode");
        }
        if (s.matches("^-.*J.*")) {
            jsonRecoverMode = true;
            log("json recover mode");
        }
        if (s.matches("^-.*e.*")) {
            endNode = true;
            log("include end node");
        }
        if (s.matches("^-.*c[0-9]*$")) {
            log("counted output mode");
            count = Integer.parseInt(s.replaceAll("^-.*c", ""));
        }

        boolean error = (graphMode == true && jsonMode == true);
        if (!error) {
            error = (count > -1) && (graphMode == true || jsonMode == true);
        }

        if (error) {
            System.err.println("[error] switches j, g and, c are mutualy exclusive.");
            return;
        }

    }

    StateTransitionDiagram<Character> std;
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

    try {
        if (!jsonRecoverMode) {
            Trainer<Character> trainer = new Trainer<Character>();
            String s = br.readLine();
            while (s != null) {
                trainer.train(string2List(s));
                n++;
                sumOfSqr += s.length() * s.length();
                sum += s.length();
                s = br.readLine();
            }
            if (n == 0) {
                System.err
                        .println("Invalid corpus: At least one sample is required, two to make it interesting");
                return;
            }
            std = trainer.getTransitionDiagram();
        } else {
            std = new StateTransitionDiagram<Character>();
            GsonStub gstub = new Gson().fromJson(br, GsonStub.class);
            n = gstub.meta.n;
            sum = gstub.meta.sum;
            sumOfSqr = gstub.meta.sumOfSqr;

            for (Entry<String, StateStub> entry : gstub.states.entrySet()) {
                State<Character> state;
                if (entry.getKey().equals("null")) {
                    state = std.getGuard();
                } else {
                    state = std.getState(Character.valueOf(entry.getKey().charAt(0)));
                }
                for (Entry<String, Integer> transitions : entry.getValue().transitions.entrySet()) {
                    State<Character> tranny;
                    if (transitions.getKey().equals("null")) {
                        tranny = std.getGuard();
                    } else {
                        tranny = std.getState(Character.valueOf(transitions.getKey().charAt(0)));
                    }

                    state.addTransition(tranny.getValue(), transitions.getValue());
                }
            }
        }
        if (graphMode) {
            if (endNode) {
                System.out.println(std.toString());
            } else {
                System.out.println(std.removeEndGuards().toString());
            }
            return;
        }
        if (jsonMode) {
            Gson gson = new GsonBuilder().excludeFieldsWithoutExposeAnnotation().create();

            String partialJson;
            if (endNode) {
                partialJson = gson.toJson(std);
            } else {
                partialJson = gson.toJson(std.removeEndGuards());
            }
            GsonStub gstub = new Gson().fromJson(partialJson, GsonStub.class);
            gstub.meta = new Meta();
            gstub.meta.n = n;
            gstub.meta.sum = sum;
            gstub.meta.sumOfSqr = sumOfSqr;

            System.out.println(gson.toJson(gstub));
            return;
        }

        Generator<Character> generator;
        if (endNode) {
            generator = new EndTagGenerator<Character>(std);
        } else {
            double sd = ((double) sumOfSqr - (double) (sum * sum) / (double) n) / (double) (n - 1);
            double mean = (double) sum / (double) n;
            log(String.format("mean: %.4f sd: %.4f", mean, sd));
            NormalDistributionImpl dist = new NormalDistributionImpl(mean, sd);
            generator = new NormalizedGenerator<Character>(std.removeEndGuards(), dist);
        }
        if (count >= 0) {
            for (int c = 0; c < count; c++) {
                output(generator);
            }
        } else {
            while (true) {
                output(generator);
            }
        }

    } catch (IOException e) {
        e.printStackTrace();
    }

}

From source file:org.eclipse.swt.examples.browserexample.BrowserExample.java

public static void main(String[] args) {
    Display display = new Display();
    Shell shell = new Shell(display);
    shell.setLayout(new FillLayout());
    shell.setText(getResourceString("window.title"));
    InputStream stream = BrowserExample.class.getResourceAsStream(iconLocation);
    Image icon = new Image(display, stream);
    shell.setImage(icon);//from   w w  w  . j av a 2  s .  com
    try {
        stream.close();
    } catch (IOException e) {
        e.printStackTrace();
    }
    BrowserExample app = new BrowserExample(shell, true);
    app.setShellDecoration(icon, true);
    shell.open();
    while (!shell.isDisposed()) {
        if (!display.readAndDispatch())
            display.sleep();
    }
    icon.dispose();
    app.dispose();
    display.dispose();
}

From source file:com.pp.dcasajus.forkpoint.GcmSender.java

public static void main(String[] args) {
    if (args.length < 1 || args.length > 2 || args[0] == null) {
        System.err.println("usage: ./gradlew run -Pmsg=\"MESSAGE\" [-Pto=\"DEVICE_TOKEN\"]");
        System.err.println("");
        System.err.println(//w w  w.  j  av a 2  s.co m
                "Specify a test message to broadcast via GCM. If a device's GCM registration token is\n"
                        + "specified, the message will only be sent to that device. Otherwise, the message \n"
                        + "will be sent to all devices subscribed to the \"global\" topic.");
        System.err.println("");
        System.err.println(
                "Example (Broadcast):\n" + "On Windows:   .\\gradlew.bat run -Pmsg=\"<Your_Message>\"\n"
                        + "On Linux/Mac: ./gradlew run -Pmsg=\"<Your_Message>\"");
        System.err.println("");
        System.err.println("Example (Unicast):\n"
                + "On Windows:   .\\gradlew.bat run -Pmsg=\"<Your_Message>\" -Pto=\"<Your_Token>\"\n"
                + "On Linux/Mac: ./gradlew run -Pmsg=\"<Your_Message>\" -Pto=\"<Your_Token>\"");
        System.exit(1);
    }
    try {
        // Prepare JSON containing the GCM message content. What to send and where to send.
        JSONObject jGcmData = new JSONObject();
        JSONObject jData = new JSONObject();
        jData.put("message", args[0].trim());
        // Where to send GCM message.
        if (args.length > 1 && args[1] != null) {
            jGcmData.put("to", args[1].trim());
        } else {
            jGcmData.put("to", "/topics/global");
        }
        // What to send in GCM message.
        jGcmData.put("data", jData);

        // Create connection to send GCM Message request.
        URL url = new URL("https://android.googleapis.com/gcm/send");
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setRequestProperty("Authorization", "key=" + API_KEY);
        conn.setRequestProperty("Content-Type", "application/json");
        conn.setRequestMethod("POST");
        conn.setDoOutput(true);

        // Send GCM message content.
        OutputStream outputStream = conn.getOutputStream();
        outputStream.write(jGcmData.toString().getBytes());

        // Read GCM response.
        InputStream inputStream = conn.getInputStream();
        String resp = IOUtils.toString(inputStream);
        System.out.println(resp);
        System.out.println("Check your device/emulator for notification or logcat for "
                + "confirmation of the receipt of the GCM message.");
    } catch (IOException e) {
        System.out.println("Unable to send GCM message.");
        System.out.println("Please ensure that API_KEY has been replaced by the server "
                + "API key, and that the device's registration token is correct (if specified).");
        e.printStackTrace();
    } catch (JSONException e) {
        e.printStackTrace();
    }
}