Example usage for io.netty.channel.socket DatagramPacket DatagramPacket

List of usage examples for io.netty.channel.socket DatagramPacket DatagramPacket

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Introduction

In this page you can find the example usage for io.netty.channel.socket DatagramPacket DatagramPacket.

Prototype

public DatagramPacket(ByteBuf data, InetSocketAddress recipient)

Source Link

Document

Create a new instance with the specified packet data and recipient address.

Usage

From source file:books.netty.protocol.udp.ChineseProverbClient.java

License:Apache License

public void run(int port) throws Exception {
    EventLoopGroup group = new NioEventLoopGroup();
    try {//  ww w. j a  va  2 s  .co  m
        Bootstrap b = new Bootstrap();
        b.group(group).channel(NioDatagramChannel.class).option(ChannelOption.SO_BROADCAST, true)
                .handler(new ChineseProverbClientHandler());
        Channel ch = b.bind(0).sync().channel();
        // ?UDP?
        ch.writeAndFlush(new DatagramPacket(Unpooled.copiedBuffer("?", CharsetUtil.UTF_8),
                new InetSocketAddress("255.255.255.255", port))).sync();
        if (!ch.closeFuture().await(15000)) {
            System.out.println("!");
        }
    } finally {
        group.shutdownGracefully();
    }
}

From source file:books.netty.protocol.udp.ChineseProverbServerHandler.java

License:Apache License

public void messageReceived(ChannelHandlerContext ctx, DatagramPacket packet) {
    String req = packet.content().toString(CharsetUtil.UTF_8);
    System.out.println(req);/*from w ww .j a  v a  2 s  .c  om*/
    if ("?".equals(req)) {
        ctx.writeAndFlush(new DatagramPacket(
                Unpooled.copiedBuffer(": " + nextQuote(), CharsetUtil.UTF_8),
                packet.sender()));
    }
}

From source file:c5db.codec.UdpProtostuffEncoder.java

License:Apache License

@Override
protected void encode(ChannelHandlerContext ctx, UdpProtostuffMessage<T> msg, List<Object> out)
        throws Exception {
    LinkBuffer buffer = new LinkBuffer(bufferAllocSize);
    if (protostuffOutput) {
        LowCopyProtostuffOutput lcpo = new LowCopyProtostuffOutput(buffer);
        schema.writeTo(lcpo, msg.message);
    } else {/*  w  w  w. j  ava 2s . com*/
        LowCopyProtobufOutput lcpo = new LowCopyProtobufOutput(buffer);
        schema.writeTo(lcpo, msg.message);
    }

    List<ByteBuffer> buffers = buffer.finish();
    ByteBuf data = Unpooled.wrappedBuffer(buffers.toArray(new ByteBuffer[buffers.size()]));
    data.retain();

    DatagramPacket dg = new DatagramPacket(data, msg.remoteAddress);
    dg.retain();
    out.add(dg);
}

From source file:cl.uandes.so.server.LoginServerHandler.java

@Override
public void channelRead0(ChannelHandlerContext ctx, DatagramPacket packet) throws Exception {
    //if(packet.content().readableBytes() < 24) {
    //    return;
    //}//from   ww  w. jav a 2 s. c  om
    // TEST Cliente: echo -e "\xff\xff\xff\xff\xff\xff\xff\xff\x41\x67\x65\x74\x41\x64\x64\x72\x65\x73\x73\x26\x50\x6f\x72\x74" | nc -4 -w 1 -u 127.0.0.1 9990
    String expected_payload = "ffffffffffffffff416765744164647265737326506f7274";
    //System.err.println(packet);
    //System.out.println(packet.toString());

    byte[] payload = { (byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
            (byte) 0xff, (byte) 0xff, (byte) 0x41, (byte) 0x67, (byte) 0x65, (byte) 0x74, (byte) 0x41,
            (byte) 0x64, (byte) 0x64, (byte) 0x72, (byte) 0x65, (byte) 0x73, (byte) 0x73, (byte) 0x26,
            (byte) 0x50, (byte) 0x6f, (byte) 0x72, (byte) 0x74 };

    ByteBuf data = packet.content().readBytes(packet.content().readableBytes());
    System.out.println(data.array().length);

    byte[] header = { (byte) 0xff, (byte) 0x52 };

    System.out.println(Utils.byteArray2Hex(data.array()));
    if (Utils.byteArray2Hex(data.array()).equals(Utils.byteArray2Hex(payload))) {
        System.out.println("Got login of client, sending multicast group address (header+multicastgroup)");
        ctx.write(new DatagramPacket(
                Unpooled.copiedBuffer(ArrayUtils.addAll(header, multicastgroup.getBytes())), packet.sender()));
    }

}

From source file:cn.pengj.udpdemo.EchoSeverHandler.java

License:Open Source License

@Override
protected void channelRead0(ChannelHandlerContext ctx, DatagramPacket packet) throws Exception {
    // ??/*w  w w .  j  av a 2s. c o  m*/
    ByteBuf buf = (ByteBuf) packet.copy().content();
    byte[] req = new byte[buf.readableBytes()];
    buf.readBytes(req);
    String body = new String(req, CharsetUtil.UTF_8);
    System.out.println("?NOTE>>>>>> ?" + body);

    // ???
    ctx.writeAndFlush(new DatagramPacket(
            Unpooled.copiedBuffer("HelloServer" + System.currentTimeMillis(),
                    CharsetUtil.UTF_8),
            packet.sender())).sync();
}

From source file:co.rsk.net.discovery.UDPChannel.java

License:Open Source License

void sendPacket(byte[] wire, InetSocketAddress address) {
    DatagramPacket packet = new DatagramPacket(Unpooled.copiedBuffer(wire), address);
    channel.write(packet);/*from w w  w  .  j  a v a2s .  c  o  m*/
    channel.flush();
}

From source file:com.andrewkroh.cicso.rtp.NettyRtpSession.java

License:Apache License

/**
 * {@inheritDoc}//from www  .j  a v a2  s  . c  om
 *
 * @throws IllegalStateException
 *             if {@code shutdown} has already been called
 */
@Override
public void sendData(RtpPacket rtpPacket) {
    Preconditions.checkNotNull(rtpPacket);
    checkNotShutdown();

    for (Destination destination : destinations) {
        ByteBuf buffer = Unpooled.copiedBuffer(rtpPacket.getBytes());
        channel.writeAndFlush(new DatagramPacket(buffer, destination.getSocketAddress()));
    }
}

From source file:com.changxx.phei.netty.protocol.udp.ChineseProverbServerHandler.java

License:Apache License

@Override
public void messageReceived(ChannelHandlerContext ctx, DatagramPacket packet) throws Exception {
    String req = packet.content().toString(CharsetUtil.UTF_8);
    System.out.println(req);//from w ww.  j  av  a2 s  .c o m
    if ("?".equals(req)) {
        ctx.writeAndFlush(new DatagramPacket(
                Unpooled.copiedBuffer(": " + nextQuote(), CharsetUtil.UTF_8),
                packet.sender()));
    }
}

From source file:com.flysoloing.learning.network.netty.qotm.QuoteOfTheMomentClient.java

License:Apache License

public static void main(String[] args) throws Exception {

    EventLoopGroup group = new NioEventLoopGroup();
    try {/*from ww w  .ja  v a2  s .  c  o m*/
        Bootstrap b = new Bootstrap();
        b.group(group).channel(NioDatagramChannel.class).option(ChannelOption.SO_BROADCAST, true)
                .handler(new QuoteOfTheMomentClientHandler());

        Channel ch = b.bind(0).sync().channel();

        // Broadcast the QOTM request to port 8080.
        ch.writeAndFlush(new DatagramPacket(Unpooled.copiedBuffer("QOTM?", CharsetUtil.UTF_8),
                SocketUtils.socketAddress("255.255.255.255", PORT))).sync();

        // QuoteOfTheMomentClientHandler will close the DatagramChannel when a
        // response is received.  If the channel is not closed within 5 seconds,
        // print an error message and quit.
        if (!ch.closeFuture().await(5000)) {
            System.err.println("QOTM request timed out.");
        }
    } finally {
        group.shutdownGracefully();
    }
}

From source file:com.flysoloing.learning.network.netty.qotm.QuoteOfTheMomentServerHandler.java

License:Apache License

@Override
public void channelRead0(ChannelHandlerContext ctx, DatagramPacket packet) throws Exception {
    System.err.println(packet);//from  w  ww  .j  a v a  2s . com
    if ("QOTM?".equals(packet.content().toString(CharsetUtil.UTF_8))) {
        ctx.write(new DatagramPacket(Unpooled.copiedBuffer("QOTM: " + nextQuote(), CharsetUtil.UTF_8),
                packet.sender()));
    }
}