Esempio n. 1
0
  public void init(ChannelPipelineFactory factory) throws Exception {
    id =
        String.format("%1$020d", Math.abs(new Random(System.currentTimeMillis()).nextLong()))
            .getBytes();

    group = new OioEventLoopGroup();
    connectionlessBootstrap = new Bootstrap();
    connectionlessBootstrap.group(group);
    connectionlessBootstrap.option(ChannelOption.SO_BROADCAST, true);
    connectionlessBootstrap.handler(factory);
    connectionlessBootstrap.channel(OioDatagramChannel.class);
    ;
    datagramChannel =
        (DatagramChannel)
            connectionlessBootstrap.bind(new InetSocketAddress(mcastGroupPort)).sync().channel();
    multicastAddress = new InetSocketAddress(mcastGroupIp, mcastGroupPort);
    NetworkInterface networkInterface =
        NetworkInterface.getByInetAddress(InetAddress.getByName(bindAddress));
    // for (Enumeration nifs = NetworkInterface.getNetworkInterfaces();
    // nifs.hasMoreElements(); )
    datagramChannel.joinGroup(multicastAddress, null); // (NetworkInterface)
    // nifs.nextElement());
    init = true;
    if (debug) factory.debug();
  }
Esempio n. 2
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 public void close() {
   datagramChannel.close();
   try {
     group.shutdownGracefully().sync();
   } catch (InterruptedException e) {
     e.printStackTrace();
   }
 }
Esempio n. 3
0
  public void send(ByteBuf msg) throws Exception {

    byte[] arr = msg.array();
    byte[] buf = new byte[arr.length + id.length];
    System.arraycopy(id, 0, buf, 0, id.length);
    System.arraycopy(arr, 0, buf, id.length, arr.length);

    ByteBuf bbuf = Unpooled.wrappedBuffer(buf);

    if (debug && logger != null) logger.info("discovery send " + new String(bbuf.array()));

    datagramChannel.writeAndFlush(new DatagramPacket(bbuf, multicastAddress)).sync();

    // datagramChannel.writeAndFlush(buf, multicastAddress);
  }