Example usage for io.netty.buffer ByteBuf writeByte

List of usage examples for io.netty.buffer ByteBuf writeByte

  1. HOME
  2. Java
  3. io.netty
  4. io.netty.buffer.*
  5. ByteBuf
  6. writeByte

Introduction

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

Prototype

public abstract ByteBuf writeByte(int value);

Source Link

Document

Sets the specified byte at the current writerIndex and increases the writerIndex by 1 in this buffer.

Usage

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 {/*from ww  w  . j av  a 2s.  c om*/
        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 ava  2  s .  c  o m
    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.yahoo.pulsar.utils.NumberFormat.java

License:Apache License

static void format(ByteBuf out, long num) {
    if (num == 0) {
        out.writeByte('0');
        return;//from  w  w  w  . j  ava 2 s .  c  om
    }

    // Long.MIN_VALUE needs special handling since abs(Long.MIN_VALUE) = abs(Long.MAX_VALUE) + 1
    boolean encounteredMinValue = (num == Long.MIN_VALUE);
    if (num < 0) {
        out.writeByte('-');
        num += encounteredMinValue ? 1 : 0;
        num *= -1;
    }

    // Putting the number in bytebuf in reverse order
    int start = out.writerIndex();
    formatHelper(out, num);
    int end = out.writerIndex();

    if (encounteredMinValue) {
        out.setByte(start, out.getByte(start) + 1);
    }

    // Reversing the digits
    end--;
    for (int i = 0; i <= (end - start) / 2; i++) {
        byte tmp = out.getByte(end - i);
        out.setByte(end - i, out.getByte(start + i));
        out.setByte(start + i, tmp);
    }
}

From source file:com.yahoo.pulsar.utils.NumberFormat.java

License:Apache License

static void formatHelper(ByteBuf out, long num) {
    while (num != 0) {
        out.writeByte((int) ('0' + num % 10));
        num /= 10;/*  w ww .  ja v a2  s  .co m*/
    }
}

From source file:com.yea.remote.netty.codec.NettyMessageEncoder.java

License:Apache License

@Override
protected void encode(ChannelHandlerContext ctx, Message msg, ByteBuf sendBuf) throws Exception {
    if (msg == null || msg.getHeader() == null) {
        throw new Exception("The encode message is null");
    }//from ww w.j  a v  a  2 s.  co m
    ISerializer serializer = serializePool.borrow();
    try {
        long basedate = new Date().getTime();
        sendBuf.writeInt((msg.getHeader().getCrcCode()));// 4
        sendBuf.writeInt((msg.getHeader().getLength()));// 4Header+BodyHeader18
        sendBuf.writeBytes((msg.getHeader().getSessionID()));// 16
        sendBuf.writeByte((msg.getHeader().getType()));// 1
        sendBuf.writeByte((msg.getHeader().getPriority()));// 1
        sendBuf.writeByte((msg.getHeader().getResult()));// 1
        if (compressionAlgorithm != null && compressionAlgorithm.code() > 0) {
            // 
            serializer.setCompress(new Compress().setCompressionAlgorithm(compressionAlgorithm.algorithm()));
            sendBuf.writeByte(compressionAlgorithm.ordinal());
        } else {
            sendBuf.writeByte(RemoteConstants.CompressionAlgorithm.NONE.ordinal());
        }
        sendBuf.writeLong(basedate);// 8??
        if (msg.getHeader().getAttachment() != null && !msg.getHeader().getAttachment().isEmpty()) {
            sendBuf.writeByte(msg.getHeader().getAttachment().size());
            Map<String, Number> mapDateType = new HashMap<String, Number>();// Date
            Map<String, String> mapStringType = new HashMap<String, String>();// String

            int lengthPos = sendBuf.writerIndex();
            sendBuf.writeBytes(new byte[1]);// 1?Date?
            byte[] keyArray = null;
            byte[] valueArray = null;
            for (Map.Entry<String, Object> param : msg.getHeader().getAttachment().entrySet()) {
                if (param.getValue() instanceof Date) {
                    //Date???byte
                    long time = basedate - ((Date) param.getValue()).getTime();
                    if (time > Integer.MAX_VALUE) {
                        mapDateType.put(param.getKey(), new Long(time));
                    } else if (time > Short.MAX_VALUE) {
                        mapDateType.put(param.getKey(), new Integer((int) time));
                    } else if (time > Byte.MAX_VALUE) {
                        mapDateType.put(param.getKey(), new Short((short) time));
                    } else {
                        mapDateType.put(param.getKey(), new Byte((byte) time));
                    }
                } else if (param.getValue() instanceof String) {
                    //??getBytes()?
                    mapStringType.put(param.getKey(), (String) param.getValue());
                } else {
                    keyArray = param.getKey().getBytes("ISO-8859-1");
                    sendBuf.writeShort(keyArray.length);
                    sendBuf.writeBytes(keyArray);

                    valueArray = serializer.serialize(param.getValue());
                    sendBuf.writeShort(valueArray.length);
                    sendBuf.writeBytes(valueArray);
                }
            }
            sendBuf.setByte(lengthPos,
                    msg.getHeader().getAttachment().size() - mapDateType.size() - mapStringType.size());

            if (mapDateType.isEmpty()) {
                sendBuf.writeByte(0);// 1Date?0
            } else {
                sendBuf.writeByte(mapDateType.size());// 1Date?
                for (Map.Entry<String, Number> param : mapDateType.entrySet()) {
                    keyArray = param.getKey().getBytes("ISO-8859-1");
                    sendBuf.writeShort(keyArray.length);
                    sendBuf.writeBytes(keyArray);

                    if (param.getValue() instanceof Long) {
                        sendBuf.writeByte(8);
                        sendBuf.writeLong((Long) param.getValue());
                    } else if (param.getValue() instanceof Integer) {
                        sendBuf.writeByte(4);
                        sendBuf.writeInt((Integer) param.getValue());
                    } else if (param.getValue() instanceof Short) {
                        sendBuf.writeByte(2);
                        sendBuf.writeShort((Short) param.getValue());
                    } else {
                        sendBuf.writeByte(1);
                        sendBuf.writeByte((Byte) param.getValue());
                    }
                }
            }

            if (mapStringType.isEmpty()) {
                sendBuf.writeByte(0);// 1String?0
            } else {
                sendBuf.writeByte(mapStringType.size());// 1String?
                for (Map.Entry<String, String> param : mapStringType.entrySet()) {
                    keyArray = param.getKey().getBytes("ISO-8859-1");
                    sendBuf.writeShort(keyArray.length);
                    sendBuf.writeBytes(keyArray);

                    valueArray = param.getValue().getBytes("ISO-8859-1");
                    sendBuf.writeShort(valueArray.length);
                    sendBuf.writeBytes(valueArray);
                }
            }
        } else {
            sendBuf.writeByte(0);// 20
        }

        if (msg.getBody() != null) {
            byte[] objArray = serializer.serialize(msg.getBody());
            int lengthPos = sendBuf.writerIndex();
            sendBuf.writeBytes(LENGTH_PLACEHOLDER);// 4Body
            sendBuf.writeBytes(objArray);
            sendBuf.setInt(lengthPos, sendBuf.writerIndex() - lengthPos - 4);// Body
        } else {
            sendBuf.writeInt(0);
        }
        sendBuf.setInt(4, sendBuf.readableBytes() - 8);// Header+Body
    } finally {
        serializePool.restore(serializer);
    }
}

From source file:com.yogpc.mc_lib.APacketTile.java

License:Open Source License

@Override
public final Packet getDescriptionPacket() {
    final ByteBuf buf = Unpooled.buffer();
    buf.writeByte(0);
    new YogpstopPacket(this).writeData(buf);
    return new FMLProxyPacket(buf, "YogpstopLib");
}

From source file:com.zz.learning.netty5.chap12.codec.NettyMessageEncoder.java

License:Apache License

@Override
protected void encode(ChannelHandlerContext ctx, NettyMessage msg, ByteBuf sendBuf) throws Exception {
    if (msg == null || msg.getHeader() == null) {
        throw new Exception("The encode message is null");
    }/*w ww . ja v a  2 s.com*/
    sendBuf.writeInt((msg.getHeader().getCrcCode()));
    sendBuf.writeInt((msg.getHeader().getLength()));
    sendBuf.writeLong((msg.getHeader().getSessionID()));
    sendBuf.writeByte((msg.getHeader().getType()));
    sendBuf.writeByte((msg.getHeader().getPriority()));
    sendBuf.writeInt((msg.getHeader().getAttachment().size()));
    String key = null;
    byte[] keyArray = null;
    Object value = null;
    for (Map.Entry<String, Object> param : msg.getHeader().getAttachment().entrySet()) {
        key = param.getKey();
        keyArray = key.getBytes("UTF-8");
        sendBuf.writeInt(keyArray.length);
        sendBuf.writeBytes(keyArray);
        value = param.getValue();
        marshallingEncoder.encode(value, sendBuf);
    }
    key = null;
    keyArray = null;
    value = null;
    if (msg.getBody() != null) {
        marshallingEncoder.encode(msg.getBody(), sendBuf);
    } else {
        sendBuf.writeInt(0); //?
    }
    //?
    sendBuf.setInt(4,
            //? crcCode,length
            sendBuf.readableBytes() - 8);
}

From source file:cubicchunks.network.PacketCubeBlockChange.java

License:MIT License

@SuppressWarnings("deprecation")
@Override//from ww w. j  ava  2  s.com
public void toBytes(ByteBuf out) {
    out.writeInt(cubePos.getX());
    out.writeInt(cubePos.getY());
    out.writeInt(cubePos.getZ());
    out.writeShort(localAddresses.length);
    for (int i = 0; i < localAddresses.length; i++) {
        out.writeShort(localAddresses[i]);
        ByteBufUtils.writeVarInt(out, Block.BLOCK_STATE_IDS.get(blockStates[i]), 4);
    }
    out.writeByte(heightValues.length);
    for (int v : heightValues) {
        out.writeInt(v);
    }
}

From source file:dan200.qcraft.shared.QCraftPacket.java

License:Open Source License

@Override
public void toBytes(ByteBuf buffer) {
    buffer.writeByte(packetType);
    if (dataString != null) {
        buffer.writeByte(dataString.length);
    } else {/*from ww  w  .j a  va  2s.  com*/
        buffer.writeByte(0);
    }
    if (dataInt != null) {
        buffer.writeByte(dataInt.length);
    } else {
        buffer.writeByte(0);
    }
    if (dataByte != null) {
        buffer.writeInt(dataByte.length);
    } else {
        buffer.writeInt(0);
    }
    if (dataString != null) {
        for (String s : dataString) {
            if (s != null) {
                try {
                    byte[] b = s.getBytes("UTF-8");
                    buffer.writeBoolean(true);
                    buffer.writeInt(b.length);
                    buffer.writeBytes(b);
                } catch (UnsupportedEncodingException e) {
                    buffer.writeBoolean(false);
                }
            } else {
                buffer.writeBoolean(false);
            }
        }
    }
    if (dataInt != null) {
        for (int i : dataInt) {
            buffer.writeInt(i);
        }
    }
    if (dataByte != null) {
        for (byte[] bytes : dataByte) {
            if (bytes != null) {
                buffer.writeInt(bytes.length);
                buffer.writeBytes(bytes);
            } else {
                buffer.writeInt(0);
            }
        }
    }
}

From source file:de.gandev.modjn.entity.func.ModbusError.java

License:Apache License

@Override
public ByteBuf encode() {
    ByteBuf buf = Unpooled.buffer(calculateLength());
    buf.writeByte(getFunctionCode());
    buf.writeByte(exceptionCode);//w  ww .j av a  2s.  c  om

    return buf;
}