Example usage for io.netty.buffer ByteBuf readByte

Introduction

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

Prototype

public abstract byte readByte();

Source Link

Document

Gets a byte at the current readerIndex and increases the readerIndex by 1 in this buffer.

Usage

From source file:com.ixortalk.nifi.processors.gettcp.TcpClientHandler.java

License:Apache License

/**
 *
 * When data becomes available on the socket, it will trigger the method below.
 * We'll read from the buffer until we find the delimiter.
 * When we find the delimiter, we'll offer it to the queue so that it can be subsequently polled by the processor.
 * The delimiter will not be offered as part of the message (TODO: make this optional)
 *
 * In case we fail to convert a byte from the buffer we log an error, but continue processing.
 *
 * @param channelHandlerContext//from w w  w .  jav  a  2  s  . c  o m
 * @param o
 * @throws Exception
 */
protected void channelRead0(ChannelHandlerContext channelHandlerContext, Object o) throws Exception {
    ByteBuf in = (ByteBuf) o;

    try {
        while (in.isReadable()) {
            byte b = in.readByte();

            if (log.isTraceEnabled()) {
                log.trace("Read byte " + ByteUtils.byteToHex(b));
            }

            if (b == delimiter) {
                if (log.isTraceEnabled()) {
                    log.trace("Found delimiter, offering message : " + message.toString());
                }

                socketMessagesReceived.offer(message.toString());
                message = new StringBuffer();
            } else {
                try {
                    message.append(new String(new byte[] { b }, "UTF-8"));
                } catch (Exception e) {
                    log.error("Error occured while converting byte to string.", e);
                }
            }
        }
    } catch (Exception e) {
        log.error("Error occured while reading channel", e);
    }
}

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From source file:com.jadarstudios.rankcapes.forge.network.packet.C0PacketPlayerCapesUpdate.java

License:MIT License

@Override
public void read(ByteBuf data) throws IndexOutOfBoundsException {
    byte typeByte = data.readByte();
    this.type = CapeUpdateType.values()[typeByte];

    this.players = this.readString(data);
}

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From source file:com.kaijin.AdvPowerMan.tileentities.TEAdjustableTransformer.java

License:Open Source License

@SideOnly(Side.CLIENT)
@Override/*from w ww  . ja v  a 2  s.  c  o m*/
public void receiveDescriptionData(int packetID, ByteBuf stream) {
    // try
    // {
    for (int i = 0; i < 6; i++) {
        sideSettings[i] = stream.readByte();
    }
    /*
     * } catch (IOException e) { logDescPacketError(e); return; }
     */
    worldObj.markBlockForUpdate(xCoord, yCoord, zCoord);
}

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From source file:com.kingmed.dp.lisclient.demo.DiscardServerHandler.java

@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
    ByteBuf in = (ByteBuf) msg;
    try {//from   ww  w .ja  v  a 2  s. c o m
        while (in.isReadable()) {
            System.out.println((char) in.readByte());
            System.out.flush();
        }
    } finally {
        ReferenceCountUtil.release(msg);
    }
}

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From source file:com.kradac.karview.netty.EchoServerHandler.java

@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
    this.c = ctx.channel();
    ByteBuf buf = (ByteBuf) msg;
    String auxdata = "";
    while (buf.isReadable()) {
        byte aux = buf.readByte();
        char charVal = (char) aux;
        int valEnt = charVal;
        if (valEnt < 10) {
            auxdata += valEnt;/*  w w w . ja v  a2 s  .  co  m*/
        } else if (valEnt == 10 || valEnt == 13) {
            auxdata += "@";
        } else {
            auxdata += charVal;
        }
    }
    this.data = auxdata;
    buf.clear();
    System.out.println("Trama que llega: " + this.data);
    if (this.data.indexOf("0@80") == 0) {
        System.out.println("Trama SKP+ +param: [" + auxdata + "]");
        u.sendToFile(3, "skp+", this.data);
        tramaMinuto(this.data.substring(5));
    } else if (this.data.indexOf("0@8000001") == 0) {
        System.out.println("Trama Conexin SKP+: [" + auxdata + "]");
        u.sendToFile(2, "skp+", this.data);
        tramaConecxion(u.clearDataConnection(this.data));
        tipoEquipoGPRS = 1;
    } else if (this.data.indexOf("0@80") == 0) {
        System.out.println("Trama Conexin SKP: [" + auxdata + "]");
        u.sendToFile(2, "skp", this.data);
        tramaConecxion(u.clearDataConnection(this.data));
        tipoEquipoGPRS = 2;
    } else if (this.data.indexOf("0150") == 0) {
        u.sendToFile(5, "skp", data);
        if (registered) {
            System.out.println(
                    "Respuesta Comando [5] [" + data + "], Equipo: [" + v.getIdEquipo().getEquipo() + "]");
            processResponseComand(this.data.substring(5));
        } else {
            System.out.println("Respuesta Comando [5] [" + data + "], Equipo: [Desconocido]");
            System.out.println(
                    "Dato Enviado a Tabla de Invalidos por no estar registrado en el sistema [Desconocido].");
            dijc.create(new DatoInvalidos(3, new Date(), e.getEquipo(), this.data));
        }
        //            System.out.println("Respuesta Cmd: [" + auxdata + "]");
        //            processResponseComand(this.data.substring(5));
    } else if (this.data.indexOf("0420") == 0) {
        System.out.println("Trama SKP: [" + data + "]");
        u.sendToFile(3, "skp", this.data);
        procesarSKP(this.data.substring(5));
    } else if (this.data.indexOf("0@8 488") == 0) { // 0@8 488 
        System.out.println("Trama SKP+ -param: [" + auxdata + "]");
        u.sendToFile(3, "skp", this.data);
        tramaMinuto(this.data.substring(9));
    } else {
        if (this.data.indexOf("0@80") == 0) {
            System.out.println("Aqui");
        } else if (this.data.indexOf("0@80") == 0) {

        } else if (this.data.indexOf("0 @80") == 0) {
            System.err.println("Trama sin Procesar: [" + auxdata + "]");
            if (registered) {
                dijc.create(new DatoInvalidos(1, new Date(), e.getEquipo(), this.data));
                System.out.println("entra aqui 1");
            } else {
                System.out.println("entra aqui 2");
                dijc.create(new DatoInvalidos(1, new Date(), "", this.data));
            }
        }
    }
}

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From source file:com.kradac.karview.netty.MyDecoder.java

@Override
protected void decode(ChannelHandlerContext chc, ByteBuf bb, List<Object> list) throws Exception {
    if (bb.readableBytes() < 2) {
        return;/*from   w  w w  .  j  ava 2s .c o  m*/
    }
    bb.markReaderIndex();
    int length = bb.readChar();
    if (length > 150) {
        String data = "";
        while (bb.isReadable()) {
            data += (char) bb.readByte();
        }
        bb.clear();
        if (data.contains("OK") || data.contains("handshake")) {
            if (data.contains("handshake")) {
                chc.channel().write("0%%at");
            }
            if (data.contains("OK")) {
                System.out.println("Respuesta de Comando AT [" + data + "]");
            }
        } else {
            System.err.println("Datos incorrectos enviados al Servidor [" + data + "]");
            chc.channel().disconnect();
        }
    }
    if (bb.readableBytes() < length - 2) {
        bb.resetReaderIndex();
        return;
    }
    in.writeBytes(bb);//Escribimos los bytes
    in.discardReadBytes();//
    in.retain();
    list.add(in);
    bb.clear();//vaciamos el byteBuf
}

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From source file:com.l2jmobius.gameserver.network.client.Crypt.java

License:Open Source License

@Override
public void encrypt(ByteBuf buf) {
    if (!_isEnabled) {
        _isEnabled = true;/*from  ww  w  .  j ava 2s  .  c  o  m*/
        onPacketSent(buf);
        return;
    }

    onPacketSent(buf);

    int a = 0;
    while (buf.isReadable()) {
        final int b = buf.readByte() & 0xFF;
        a = b ^ _outKey[(buf.readerIndex() - 1) & 15] ^ a;
        buf.setByte(buf.readerIndex() - 1, a);
    }

    shiftKey(_outKey, buf.writerIndex());
}

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From source file:com.l2jmobius.gameserver.network.client.Crypt.java

License:Open Source License

@Override
public void decrypt(ByteBuf buf) {
    if (!_isEnabled) {
        onPacketReceive(buf);/*from  w w  w. j  a v  a  2 s .c o m*/
        return;
    }

    int a = 0;
    while (buf.isReadable()) {
        final int b = buf.readByte() & 0xFF;
        buf.setByte(buf.readerIndex() - 1, b ^ _inKey[(buf.readerIndex() - 1) & 15] ^ a);
        a = b;
    }

    shiftKey(_inKey, buf.writerIndex());

    onPacketReceive(buf);
}

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From source file:com.ldp.nettydemo.netty.codec.NettyMessageDecoder.java

License:Apache License

@Override
protected Object decode(ChannelHandlerContext ctx, ByteBuf in) throws Exception {
    ByteBuf frame = (ByteBuf) super.decode(ctx, in);
    if (frame == null) {
        return null;
    }//w w  w .java  2  s  .  c  o  m

    NettyMessage message = new NettyMessage();
    Header header = new Header();
    header.setCrcCode(frame.readInt());
    header.setLength(frame.readInt());
    header.setSessionID(frame.readLong());
    header.setType(frame.readByte());
    header.setPriority(frame.readByte());

    int size = frame.readInt();
    if (size > 0) {
        Map<String, Object> attch = new HashMap<String, Object>(size);
        int keySize = 0;
        byte[] keyArray = null;
        String key = null;
        for (int i = 0; i < size; i++) {
            keySize = frame.readInt();
            keyArray = new byte[keySize];
            frame.readBytes(keyArray);
            key = new String(keyArray, "UTF-8");
            attch.put(key, ByteObjConverter.ByteToObject(new ByteBufToBytes().read(frame)));
            //      attch.put(key, marshallingDecoder.decode(frame));
        }
        keyArray = null;
        key = null;
        header.setAttachment(attch);
    }
    if (frame.readableBytes() > 4) {
        message.setBody(ByteObjConverter.ByteToObject(new ByteBufToBytes().read(frame)));
        //       message.setBody(marshallingDecoder.decode(frame));
    }
    message.setHeader(header);
    return message;
}

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From source file:com.lothrazar.cyclicmagic.playerupgrade.PacketSyncExtendedInventory.java

License:Open Source License

@Override
public void fromBytes(ByteBuf buffer) {
    slot = buffer.readByte();
    playerId = buffer.readInt();
    itemStack = ByteBufUtils.readItemStack(buffer);
}

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