Example usage for io.netty.buffer Unpooled buffer

Introduction

In this page you can find the example usage for io.netty.buffer Unpooled buffer.

Prototype

public static ByteBuf buffer(int initialCapacity)

Source Link

Document

Creates a new big-endian Java heap buffer with the specified capacity , which expands its capacity boundlessly on demand.

Usage

From source file:com.whizzosoftware.hobson.lifx.api.codec.LIFXFrameEncoder.java

License:Open Source License

@Override
protected void encode(ChannelHandlerContext channelHandlerContext, Message m, List<Object> list)
        throws Exception {
    ByteBuf buf = null;/* w  w  w  . ja  va  2  s  .c  om*/

    switch (m.getType()) {
    case DeviceGetPower.TYPE:
    case DeviceGetService.TYPE:
    case LightGet.TYPE:
        buf = Unpooled.buffer(m.getLength());
        writeMessageHeader(buf, m.getHeader());
        break;
    case DeviceSetPower.TYPE:
        buf = Unpooled.buffer(m.getLength());
        writeDeviceSetPower(buf, (DeviceSetPower) m);
        break;
    case LightSetColor.TYPE:
        buf = Unpooled.buffer(m.getLength());
        writeLightSetColor(buf, (LightSetColor) m);
        break;
    case LightSetPower.TYPE:
        buf = Unpooled.buffer(m.getLength());
        writeLightSetPower(buf, (LightSetPower) m);
        break;
    default:
        logger.error("Unsupported message passed to encoder: {}", m);
    }

    if (buf != null) {
        list.add(new DatagramPacket(buf, m.getRecipient()));
    } else {
        logger.error("Unknown message passed to encoder: {}", m);
    }
}

From source file:com.witjit.game.client.Client.java

License:Apache License

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

    EventLoopGroup group = new NioEventLoopGroup();
    try {/*w w  w .  j  a v  a2 s.  co  m*/
        Bootstrap b = new Bootstrap();
        b.group(group).channel(NioSocketChannel.class).handler(new ClientInitializer());

        // Start the connection attempt.
        Channel ch = b.connect(HOST, PORT).sync().channel();

        // Read commands from the stdin.
        ChannelFuture lastWriteFuture = null;
        //            BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
        //            for (;;) {
        //                String line = in.readLine();
        //                if (line == null) {
        //                    break;
        //                }
        //
        //                // Sends the received line to the server.
        //                lastWriteFuture = ch.writeAndFlush(line + "\r\n");
        //
        //                // If user typed the 'bye' command, wait until the server closes
        //                // the connection.
        //                if ("bye".equals(line.toLowerCase())) {
        //                    ch.closeFuture().sync();
        //                    break;
        //                }
        //            }

        ByteBuf outb = Unpooled.buffer(200);
        outb.writeShort(127);
        outb.writeShort(10);
        outb.writeInt(10001);
        outb.writeByte(40);
        outb.writeByte(50);
        // Sends the received line to the server.
        lastWriteFuture = ch.writeAndFlush(outb);
        // Wait until all messages are flushed before closing the channel.
        if (lastWriteFuture != null) {
            lastWriteFuture.sync();
        }

        // Wait until the connection is closed.
        ch.closeFuture().sync();
    } finally {
        group.shutdownGracefully();
    }
}

From source file:com.witjit.game.client.EchoClient.java

License:Apache License

private static void sendData(Channel ch) throws InterruptedException {
    ByteBuf outb = Unpooled.buffer(200);
    outb.writeShort(127);//from   w w w  .j  a  va 2 s.c  om
    outb.writeShort(10);
    outb.writeInt(10001);
    outb.writeByte(40);
    outb.writeByte(50);
    // Sends the received line to the server.
    ChannelFuture writeFuture = ch.writeAndFlush(outb);
    // Wait until all messages are flushed before closing the channel.
    if (writeFuture != null) {
        writeFuture.sync();
    }

}

From source file:com.witjit.game.server.communication.bbmessage.MessageInHandler.java

@Override
protected ByteBuf readMessage(ByteBuf mb) {
    ByteBuf buffer = Unpooled.buffer(128);
    mb.readBytes(buffer);
    return buffer;
}

From source file:com.witjit.game.server.communication.netty.handler.AbstractMessageOutHandler.java

@Override
public void write(ChannelHandlerContext ctx, Object msg, ChannelPromise promise) throws Exception {
    if (!(msg instanceof Message)) {
        //TODO: handle error message.
        return;//from w  w  w . java  2s  . co  m
    }
    Message<M> message = (Message<M>) msg;
    ByteBuf buf = Unpooled.buffer(256);
    writeEndpointId(buf, message.getReceiver());
    writeEndpointId(buf, message.getSender());
    writeMessage(buf, message.getContent());
    ctx.write(buf, promise);
}

From source file:com.witjit.game.server.communication.netty.handler.NodeChannelInitializer.java

protected void sendNodeInformation(Channel ch) throws Exception {
    ByteBuf buffer = Unpooled.buffer(4);
    buffer.writeShort(localNodeId);
    ch.writeAndFlush(buffer);
}

From source file:com.xxx.demo.netty.echo.EchoClientHandler.java

License:Apache License

/**
 * Creates a client-side handler./*from   w w  w  .ja  v  a2s .  co  m*/
 */
public EchoClientHandler() {
    firstMessage = Unpooled.buffer(EchoClient.SIZE);
    //        for (int i = 0; i < firstMessage.capacity(); i ++) {
    //            firstMessage.writeByte((byte) i);
    //        }
    firstMessage.writeBytes("123".getBytes());
}

From source file:com.xxx.util.io.client.netty.EchoClient.java

License:Apache License

public byte[] sendAndRec(byte[] bytes) {
    ByteBuf firstMessage = Unpooled.buffer(EchoClient.SIZE);
    firstMessage.writeBytes(bytes);/*from   ww  w.  j  a v  a 2  s.c  om*/
    channel.writeAndFlush(firstMessage);

    return null;
}

From source file:com.xxx.util.io.client.netty.EchoClientHandler.java

License:Apache License

/**
 * Creates a client-side handler.//  w  ww. ja v a 2s  .co m
 */
public EchoClientHandler() {
    firstMessage = Unpooled.buffer(EchoClient.SIZE);
    //        for (int i = 0; i < firstMessage.capacity(); i ++) {
    //            firstMessage.writeByte((byte) i);
    //        }
    firstMessage.writeBytes("00000003123".getBytes());
}

From source file:com.xxx.util.io.client.netty.EchoClientHandler.java

License:Apache License

public EchoClientHandler(int headSize, boolean isLongConnect) {
    firstMessage = Unpooled.buffer(EchoClient.SIZE);
    firstMessage.writeBytes("00000003123".getBytes());
    this.headSize = headSize;
    this.isLongConnect = isLongConnect;
}