Example usage for java.nio.channels DatagramChannel setOption

Introduction

In this page you can find the example usage for java.nio.channels DatagramChannel setOption.

Prototype

public abstract <T> DatagramChannel setOption(SocketOption<T> name, T value) throws IOException;

Source Link

Usage

From source file:Test.java

public static void main(String[] args) throws Exception {
    NetworkInterface networkInterface = NetworkInterface.getByName("net1");

    DatagramChannel dc = DatagramChannel.open(StandardProtocolFamily.INET);

    dc.setOption(StandardSocketOptions.SO_REUSEADDR, true);
    dc.bind(new InetSocketAddress(8080));
    dc.setOption(StandardSocketOptions.IP_MULTICAST_IF, networkInterface);

    InetAddress group = InetAddress.getByName("180.90.4.12");
    MembershipKey key = dc.join(group, networkInterface);
}

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From source file:Main.java

public static void main(String[] args) throws Exception {
    DatagramChannel server = DatagramChannel.open();
    server.bind(null);//from  ww  w.j a v a  2 s. c o m
    NetworkInterface interf = NetworkInterface.getByName(MULTICAST_INTERFACE_NAME);
    server.setOption(StandardSocketOptions.IP_MULTICAST_IF, interf);

    String msg = "Hello!";
    ByteBuffer buffer = ByteBuffer.wrap(msg.getBytes());
    InetSocketAddress group = new InetSocketAddress(MULTICAST_IP, MULTICAST_PORT);

    server.send(buffer, group);
    System.out.println("Sent the   multicast  message: " + msg);
}

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From source file:Main.java

public static void main(String[] args) throws Exception {
    MembershipKey key = null;// w w w  .  j av a  2  s.  c o  m
    DatagramChannel client = DatagramChannel.open(StandardProtocolFamily.INET);

    NetworkInterface interf = NetworkInterface.getByName(MULTICAST_INTERFACE_NAME);
    client.setOption(StandardSocketOptions.SO_REUSEADDR, true);
    client.bind(new InetSocketAddress(MULTICAST_PORT));
    client.setOption(StandardSocketOptions.IP_MULTICAST_IF, interf);

    InetAddress group = InetAddress.getByName(MULTICAST_IP);
    key = client.join(group, interf);

    System.out.println("Joined the   multicast  group:" + key);
    System.out.println("Waiting for a  message  from  the" + "  multicast group....");

    ByteBuffer buffer = ByteBuffer.allocate(1048);
    client.receive(buffer);
    buffer.flip();
    int limits = buffer.limit();
    byte bytes[] = new byte[limits];
    buffer.get(bytes, 0, limits);
    String msg = new String(bytes);

    System.out.format("Multicast Message:%s%n", msg);
    key.drop();
}

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From source file:org.apache.nifi.io.nio.ChannelListener.java

private DatagramChannel createAndBindDatagramChannel(final InetAddress nicIPAddress, final int port,
        final int receiveBufferSize) throws IOException {
    final DatagramChannel dChannel = DatagramChannel.open();
    dChannel.configureBlocking(false);/*from ww w  .  j a v  a 2s . c o m*/
    if (receiveBufferSize > 0) {
        dChannel.setOption(StandardSocketOptions.SO_RCVBUF, receiveBufferSize);
        final int actualReceiveBufSize = dChannel.getOption(StandardSocketOptions.SO_RCVBUF);
        if (actualReceiveBufSize < receiveBufferSize) {
            LOGGER.warn(this + " attempted to set UDP Receive Buffer Size to " + receiveBufferSize
                    + " bytes but could only set to " + actualReceiveBufSize
                    + "bytes. You may want to consider changing the Operating System's "
                    + "maximum receive buffer");
        }
    }
    dChannel.setOption(StandardSocketOptions.SO_REUSEADDR, true);
    dChannel.bind(new InetSocketAddress(nicIPAddress, port));
    return dChannel;
}

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