Examples of DatagramSocket

io.vertx.core.datagram.DatagramSocket
A Datagram socket which can be used to send {@link DatagramPacket}'s to remote Datagram servers and receive {@link DatagramPacket}s . Usually you use a Datragram Client to send UDP over the wire. UDP is connection-less which means you are not connected to the remote peer in a persistent way. Because of this you have to supply the address and port of the remote peer when sending data. You can send data to ipv4 or ipv6 addresses, which also include multicast addresses. @author Norman Maurer
java.net.DatagramSocket
This class represents a socket for sending and receiving datagram packets.
A datagram socket is the sending or receiving point for a packet delivery service. Each packet sent or received on a datagram socket is individually addressed and routed. Multiple packets sent from one machine to another may be routed differently, and may arrive in any order.
UDP broadcasts sends are always enabled on a DatagramSocket. In order to receive broadcast packets a DatagramSocket should be bound to the wildcard address. In some implementations, broadcast packets may also be received when a DatagramSocket is bound to a more specific address.
Example: DatagramSocket s = new DatagramSocket(null); s.bind(new InetSocketAddress(8888)); Which is equivalent to: DatagramSocket s = new DatagramSocket(8888); Both cases will create a DatagramSocket able to receive broadcasts on UDP port 8888. @author Pavani Diwanji @version 1.101, 06/08/06 @see java.net.DatagramPacket @see java.nio.channels.DatagramChannel @since JDK1.0

Examples of java.net.DatagramSocket

  public RadiusPacket communicate(RadiusPacket request, int port) 
  throws IOException, RadiusException {
    DatagramPacket packetIn = new DatagramPacket(new byte[RadiusPacket.MAX_PACKET_LENGTH], RadiusPacket.MAX_PACKET_LENGTH);
    DatagramPacket packetOut = makeDatagramPacket(request, port);
    
    DatagramSocket socket = getSocket();
    for (int i = 1; i <= getRetryCount(); i++) {
      try {
        socket.send(packetOut);
        socket.receive(packetIn);
        return makeRadiusPacket(packetIn, request);
      } catch (IOException ioex) {
        if (i == getRetryCount()) {
          if (logger.isErrorEnabled()) {
            if (ioex instanceof SocketTimeoutException)

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Examples of java.net.DatagramSocket

   * @throws SocketException
   */
  protected DatagramSocket getSocket() 
  throws SocketException {
    if (socket == null) {
      socket = new DatagramSocket();
      socket.setSoTimeout(getSocketTimeout());
    }
    return socket;
  }

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Examples of java.net.DatagramSocket

   */
  protected DatagramSocket getProxySocket() 
  throws SocketException {
    if (proxySocket == null) {
      if (getListenAddress() == null)
        proxySocket = new DatagramSocket(getProxyPort());
      else
        proxySocket = new DatagramSocket(getProxyPort(), getListenAddress());
      proxySocket.setSoTimeout(getSocketTimeout());      
    }
    return proxySocket;
  }

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Examples of java.net.DatagramSocket

         // re-encode answer packet with authenticator of the original packet
         RadiusPacket answer = new RadiusPacket(packet.getPacketType(), packet.getPacketIdentifier(), packet.getAttributes());
         DatagramPacket datagram = makeDatagramPacket(answer, client.getSharedSecret(), client.getEndpointAddress().getAddress(), client.getEndpointAddress().getPort(), proxyConnection.getPacket());        
        
         // send back using correct socket
         DatagramSocket socket;
         if (proxyConnection.getPort() == getAuthPort())
           socket = getAuthSocket();
        else
          socket = getAcctSocket();
         socket.send(datagram);
    }

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Examples of java.net.DatagramSocket


        // restore original authenticator
        packet.setAuthenticator(auth);


    // send packet
      DatagramSocket proxySocket = getProxySocket();
        proxySocket.send(datagram);        
    }

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Examples of java.net.DatagramSocket

   */
  public void sendSchedulerRequest(String msg) throws Exception {


    String _host = "";
    int _port = 0;
    DatagramSocket udpSocket = null;
    try {


      _host = sosString.parseToString(arguments, "scheduler_host");
      if (sosString.parseToString(arguments, "scheduler_port").length() > 0)
        _port = Integer.parseInt(sosString.parseToString(arguments, "scheduler_port"));


      if (_host == null || _host.length() == 0)
        throw (new Exception("Job Scheduler host name missing."));


      if (_port == 0)
        throw (new Exception("Job Scheduler port missing."));


      udpSocket = new DatagramSocket();
      udpSocket.connect(InetAddress.getByName(_host), _port);


      // protocol=udp
      if (msg.indexOf("<?xml") == -1) {
        msg = "<?xml version=\"1.0\" encoding=\"iso-8859-1\"?>" + msg + "\r\n";
      }


      getLogger().debug9("sending Job Scheduler message: " + msg);


      byte[] commandBytes = msg.getBytes();
      udpSocket.send(new DatagramPacket(commandBytes, commandBytes.length, InetAddress.getByName(_host), _port));
    }
    catch (Exception e) {
      getLogger().warn("could not send message to the Job Scheduler, cause " + e.toString());
    }
    finally {
      if (udpSocket != null)
        udpSocket.disconnect();


    }
  }

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Examples of java.net.DatagramSocket

        strA = getSocket().getResponse();
        objAnswer = getAnswer(strA);
      }
      else
        if (objOptions.TransferMethod.isUdp()) {
          DatagramSocket udpSocket = null;
          int intPortNumber = 0;
          try {
            udpSocket = new DatagramSocket();
            intPortNumber = objOptions.PortNumber.value();
            InetAddress objInetAddress = objOptions.ServerName.getInetAddress();
            udpSocket.connect(objInetAddress, intPortNumber);
            if (strT.indexOf("<?xml") == -1) {
              strT = "<?xml version=\"1.0\" encoding=\"iso-8859-1\"?>" + strT;
            }
            byte[] btyBuffer = strT.getBytes();
            udpSocket.send(new DatagramPacket(btyBuffer, btyBuffer.length, objInetAddress, intPortNumber));
          }
          catch (Exception e) {
            e.printStackTrace();
            throw e;
          }
          finally {
            if (udpSocket != null) {
              logger.debug(String.format("Command sent using UDP to host '%1$s' at port '%2$d'", objOptions.ServerName.toString(), intPortNumber)  );
              udpSocket.disconnect();
              udpSocket = null;
            }
          }
        }
        else {

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Examples of java.net.DatagramSocket

   */
  protected DatagramSocket getAuthSocket() 
  throws SocketException {
    if (authSocket == null) {
      if (getListenAddress() == null)
        authSocket = new DatagramSocket(getAuthPort());
      else
        authSocket = new DatagramSocket(getAuthPort(), getListenAddress());
      authSocket.setSoTimeout(getSocketTimeout());
    }
    return authSocket;
  }

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Examples of java.net.DatagramSocket

   */
  protected DatagramSocket getAcctSocket() 
  throws SocketException {
    if (acctSocket == null) {
      if (getListenAddress() == null)
        acctSocket = new DatagramSocket(getAcctPort());
      else
        acctSocket = new DatagramSocket(getAcctPort(), getListenAddress());
      acctSocket.setSoTimeout(getSocketTimeout());
    }
    return acctSocket;
  }

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Examples of java.net.DatagramSocket


    String host = address.substring(11, portSep); // 11 = "datagram://"


    if (host.equals("")) {
      // A server: Listen on a special port.
      socket = new DatagramSocket(port);
    } else {
      // A client: Any port will do
      socket = new DatagramSocket();
    }


    if (!timeouts)
      socket.setSoTimeout(0);

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