Example usage for java.net DatagramSocket DatagramSocket

Introduction

In this page you can find the example usage for java.net DatagramSocket DatagramSocket.

Prototype

public DatagramSocket() throws SocketException 

Source Link

Document

Constructs a datagram socket and binds it to any available port on the local host machine.

Usage

From source file:org.springframework.integration.syslog.inbound.SyslogReceivingChannelAdapterTests.java

@Test
public void testAsMapFalse() throws Exception {
    SyslogReceivingChannelAdapterFactoryBean factory = new SyslogReceivingChannelAdapterFactoryBean(
            SyslogReceivingChannelAdapterFactoryBean.Protocol.udp);
    int port = SocketUtils.findAvailableUdpSocket(1514);
    factory.setPort(port);/*from  ww w  .ja va 2  s  .c o m*/
    PollableChannel outputChannel = new QueueChannel();
    factory.setOutputChannel(outputChannel);
    factory.setBeanFactory(mock(BeanFactory.class));
    factory.afterPropertiesSet();
    factory.start();
    UdpSyslogReceivingChannelAdapter adapter = (UdpSyslogReceivingChannelAdapter) factory.getObject();
    DefaultMessageConverter defaultMessageConverter = new DefaultMessageConverter();
    defaultMessageConverter.setAsMap(false);
    adapter.setConverter(defaultMessageConverter);
    Thread.sleep(1000);
    byte[] buf = "<157>JUL 26 22:08:35 WEBERN TESTING[70729]: TEST SYSLOG MESSAGE".getBytes("UTF-8");
    DatagramPacket packet = new DatagramPacket(buf, buf.length, new InetSocketAddress("localhost", port));
    DatagramSocket socket = new DatagramSocket();
    socket.send(packet);
    socket.close();
    Message<?> message = outputChannel.receive(10000);
    assertNotNull(message);
    assertEquals("WEBERN", message.getHeaders().get("syslog_HOST"));
    assertEquals("<157>JUL 26 22:08:35 WEBERN TESTING[70729]: TEST SYSLOG MESSAGE",
            new String((byte[]) message.getPayload(), "UTF-8"));
    adapter.stop();
}

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From source file:org.mule.test.firewall.FirewallTestCase.java

protected DatagramSocket openUdpClient() throws IOException {
    try {// w ww .j a v  a2s  . com
        return new DatagramSocket();
    } catch (IOException e) {
        logger.error("Could not open UDP client");
        throw e;
    }
}

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From source file:org.loggo.server.SimpleServerIT.java

@Test(timeout = 60 * 1000)
public void sunnyDay() throws Exception {
    // no log files exist
    assertEquals(0, Iterators.size(conn.createScanner("logs", Authorizations.EMPTY).iterator()));
    // send a tcp message
    Socket s = new Socket("localhost", loggerPort);
    assertTrue(s.isConnected());/* www.  j  a  v  a 2 s. c  o  m*/
    s.getOutputStream()
            .write("localhost tester 2014-01-01 01:01:01,123 This is a test message\n\n".getBytes(UTF_8));
    s.close();
    // send a udp message
    DatagramSocket ds = new DatagramSocket();
    String otherMessage = "localhost test2 2014-01-01 01:01:01,345 [INFO] This is a 2nd message";
    byte[] otherMessageBytes = otherMessage.getBytes(UTF_8);
    InetSocketAddress dest = new InetSocketAddress("localhost", loggerPort);
    ds.send(new DatagramPacket(otherMessageBytes, otherMessageBytes.length, dest));
    ds.close();
    // wait for a flush
    sleepUninterruptibly(8, TimeUnit.SECONDS);
    // verify the messages are stored
    Scanner scanner = conn.createScanner("logs", Authorizations.EMPTY);
    assertEquals(2, Iterators.size(scanner.iterator()));
    Iterator<Entry<Key, Value>> iter = scanner.iterator();
    Entry<Key, Value> next = iter.next();
    assertEquals(next.getValue().toString(), "This is a test message");
    assertEquals(next.getKey().getColumnQualifier().toString(), "tester\0localhost");
    assertEquals(next.getKey().getColumnFamily().toString(), "UNKNOWN");
    assertTrue(next.getKey().getRow().toString().endsWith("2014-01-01 01:01:01,123"));
    next = iter.next();
    assertEquals(next.getValue().toString(), "[INFO] This is a 2nd message");
    assertEquals(next.getKey().getColumnQualifier().toString(), "test2\0localhost");
    assertTrue(next.getKey().getRow().toString().endsWith("2014-01-01 01:01:01,123"));
    assertFalse(iter.hasNext());
    sleepUninterruptibly(30, TimeUnit.SECONDS);
    conn.tableOperations().deleteRows("logs", null, null);
}

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From source file:com.example.nate.cloudcar.MainActivity.java

public void socketSend(final String chan, final int pos) {
    new Thread(new Runnable() {
        public void run() {
            try {
                int msgLength = chan.length();
                DatagramSocket s = new DatagramSocket();
                InetAddress local = InetAddress.getByName("192.168.10.200");
                byte[] message = chan.getBytes();
                DatagramPacket chanPacket = new DatagramPacket(message, msgLength, local, server_port);
                s.send(chanPacket);/*from w  w  w . j  av a  2s.co  m*/
                msgLength = Integer.toString(pos).length();
                message = Integer.toString(pos).getBytes();
                DatagramPacket posPacket = new DatagramPacket(message, msgLength, local, server_port);
                s.send(posPacket);
            } catch (UnknownHostException e) {
                e.printStackTrace();
            } catch (SocketException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }).start();
    Thread.currentThread().interrupted();

}

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From source file:snapshotTools.java

private String callOvnmanager(String node, String action) {
    String result = "";
    DatagramSocket socket = null;
    int serverPort = 9999;
    DatagramPacket packet2Send;//from   w ww.j a v  a2s  .c om
    DatagramPacket receivedPacket;
    InetAddress theServerAddress;
    byte[] outBuffer;
    byte[] inBuffer;
    inBuffer = new byte[8192];
    outBuffer = new byte[8192];
    try {
        HttpSession session = RuntimeAccess.getInstance().getSession();
        String sessionUser = (String) session.getAttribute("User");
        if (sessionUser == null) {
            sessionUser = "administrator";
        }
        JSONObject joCmd = new JSONObject();
        JSONObject joAction = new JSONObject(action);
        joCmd.put("sender", sessionUser);
        joCmd.put("target", "SNAPSHOT");
        joCmd.put("node", node);
        joCmd.put("action", joAction);
        String output = joCmd.toString();

        socket = new DatagramSocket();
        String actionName = joAction.get("name").toString();
        if (actionName.equals("create")) {
            socket.setSoTimeout(180000);
        } else {
            socket.setSoTimeout(60000);
        }

        InetAddress serverInet = InetAddress.getByName("localhost");
        socket.connect(serverInet, serverPort);
        outBuffer = output.getBytes();
        packet2Send = new DatagramPacket(outBuffer, outBuffer.length, serverInet, serverPort);

        try {
            // send the data
            socket.send(packet2Send);
            receivedPacket = new DatagramPacket(inBuffer, inBuffer.length);
            socket.receive(receivedPacket);
            // the server response is...
            result = new String(receivedPacket.getData(), 0, receivedPacket.getLength());
            session.setAttribute("LastActive", System.currentTimeMillis());
        } catch (Exception excep) {
            String msg = excep.getMessage();
            //String msg = excep.toString();
            joCmd.remove("action");
            joAction.put("result", "Error:" + msg);
            joCmd.put("action", joAction);
            result = joCmd.toString();
        }
        socket.close();

    } catch (Exception e) {
        log(ERROR, "callOvnmanager", e);
        return e.toString();
    }
    return result;
}

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From source file:com.vivareal.logger.appender.UDPAppender.java

void connect(InetAddress address, int port) {
    if (this.address == null) {
        return;//  w  w  w. j a v a2  s  .  c om
    }

    try {
        // First, close the previous connection if any.
        cleanUp();
        outSocket = new DatagramSocket();
        outSocket.connect(address, port);
    } catch (IOException e) {
        LogLog.error("Could not open UDP Socket for sending. We will try again later.", e);
        fireConnector();
    }
}

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From source file:sx.blah.discord.api.internal.UDPVoiceSocket.java

/**
 * Called when the voice gateway receives {@link VoiceOps#READY}. This performs IP discovery and sends
 * {@link VoiceOps#SELECT_PROTOCOL} on the voice gateway.
 *
 * @param endpoint The endpoint to send audio data to.
 * @param port The port to send audio data on.
 * @param ssrc The self user's ssrc.//from   w  w w .  j a  v  a  2 s  .  c om
 */
synchronized void setup(String endpoint, int port, int ssrc) {
    try {
        this.udpSocket = new DatagramSocket();
        this.address = new InetSocketAddress(endpoint, port);
        this.ssrc = ssrc;

        Pair<String, Integer> ourIp = doIPDiscovery(ssrc);

        udpSocket.setSoTimeout(5); //after IP discovery, every usage times out after 5ms, because it's better to drop a frame than block the thread.

        SelectProtocolRequest selectRequest = new SelectProtocolRequest(ourIp.getLeft(), ourIp.getRight());
        voiceWS.send(VoiceOps.SELECT_PROTOCOL, selectRequest);
    } catch (IOException e) {
        Discord4J.LOGGER.error(LogMarkers.VOICE_WEBSOCKET, "Encountered error opening voice UDP socket: ", e);
    }
}

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From source file:com.barchart.udt.AppServer.java

private static InetAddress getLocalHostViaUdp() throws UnknownHostException {
    final InetSocketAddress sa = new InetSocketAddress("www.google.com", 80);

    DatagramSocket sock = null;/*from   w ww .j  av a 2s. c o m*/
    try {
        sock = new DatagramSocket();
        sock.connect(sa);
        final InetAddress address = sock.getLocalAddress();
        return address;
    } catch (final SocketException e) {
        log.warn("Exception getting address", e);
        return InetAddress.getLocalHost();
    } finally {
        if (sock != null) {
            sock.close();
        }
    }
}

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From source file:QuoteServerThread.java

public void init() {
        //Initialize networking stuff.
        String host = getCodeBase().getHost();

        try {//from w ww .ja va 2 s . c o  m
            address = InetAddress.getByName(host);
        } catch (UnknownHostException e) {
            System.out.println("Couldn't get Internet address: Unknown host");
            // What should we do?
        }

        try {
            socket = new DatagramSocket();
        } catch (IOException e) {
            System.out.println("Couldn't create new DatagramSocket");
            return;
        }

        //Set up the UI.
        GridBagLayout gridBag = new GridBagLayout();
        GridBagConstraints c = new GridBagConstraints();
        setLayout(gridBag);

        Label l1 = new Label("Quote of the Moment:", Label.CENTER);
        c.anchor = GridBagConstraints.SOUTH;
        c.gridwidth = GridBagConstraints.REMAINDER;
        gridBag.setConstraints(l1, c);
        add(l1);

        display = new Label("(no quote received yet)", Label.CENTER);
        c.anchor = GridBagConstraints.NORTH;
        c.weightx = 1.0;
        c.fill = GridBagConstraints.HORIZONTAL;
        gridBag.setConstraints(display, c);
        add(display);

        Label l2 = new Label("Enter the port (on host " + host + ") to send the request to:", Label.RIGHT);
        c.anchor = GridBagConstraints.SOUTH;
        c.gridwidth = 1;
        c.weightx = 0.0;
        c.weighty = 1.0;
        c.fill = GridBagConstraints.NONE;
        gridBag.setConstraints(l2, c);
        add(l2);

        portField = new TextField(6);
        gridBag.setConstraints(portField, c);
        add(portField);

        Button button = new Button("Send");
        gridBag.setConstraints(button, c);
        add(button);

        portField.addActionListener(this);
        button.addActionListener(this);
    }

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From source file:com.carreygroup.JARVIS.Demon.java

/******************************TCP
 * @throws UnknownHostException ******************************/
public boolean Connection(byte mode, String argv1, String argv2) throws UnknownHostException {
    Ethnet_Mode = mode;/*  ww w.java2  s  .co  m*/
    if (Ethnet_Mode == Ethnet.P2P) {
        P2PConnect(argv1, argv2);

    } else if (Ethnet_Mode == Ethnet.TCP) {
        //,IP
        java.net.InetAddress x;
        x = java.net.InetAddress.getByName(argv1);
        String host = x.getHostAddress();//ip      

        int port = Integer.valueOf(argv2);
        try {
            mSocket = new Socket();
            mAddress = new InetSocketAddress(host, port);
            mSocket.connect(mAddress, 5000);
            mPrintWriterClient = new PrintWriter(mSocket.getOutputStream(), true);
            if (mSocket.isConnected())
                Log.v("_DEBUG", "Connected!");
            else
                Log.v("_DEBUG", "No Connected!");
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        //  
        // new Thread(new ActiveTest(mSocket.socket())).start();
    } else if (Ethnet_Mode == Ethnet.UDP) {
        //,IP
        java.net.InetAddress x;
        x = java.net.InetAddress.getByName(argv1);
        String host = x.getHostAddress();//ip      
        int port = Integer.valueOf(argv2);

        mAddress = new InetSocketAddress(host, port);
        try {
            mSendPSocket = new DatagramSocket();
            mSendPSocket.setBroadcast(true);
            mReceviedSocket = new DatagramSocket(port);

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

    if (Connected()) {
        for (ConnectionListener listener : mConnListeners) {
            listener.onConnected(this);
        }
    }
    return Connected();
}

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