Example usage for io.netty.buffer ByteBuf skipBytes

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

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

Introduction

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

Prototype

public abstract ByteBuf skipBytes(int length);

Source Link

Document

Increases the current readerIndex by the specified length in this buffer.

Usage

From source file:org.jfxvnc.net.rfb.codec.handshaker.RfbClient33Decoder.java

License:Apache License

protected PixelFormat parsePixelFormat(ByteBuf m) {

    PixelFormat pf = new PixelFormat();

    pf.setBitPerPixel(m.readUnsignedByte());
    pf.setDepth(m.readUnsignedByte());/*from  ww  w. j  a  v  a2 s  .  c o m*/
    pf.setBigEndian(m.readUnsignedByte() == 1);
    pf.setTrueColor(m.readUnsignedByte() == 1);
    pf.setRedMax(m.readUnsignedShort());
    pf.setGreenMax(m.readUnsignedShort());
    pf.setBlueMax(m.readUnsignedShort());

    pf.setRedShift(m.readUnsignedByte());
    pf.setGreenShift(m.readUnsignedByte());
    pf.setBlueShift(m.readUnsignedByte());
    m.skipBytes(3);

    return pf;
}

From source file:org.jfxvnc.net.rfb.codec.handshaker.RfbClient38Decoder.java

License:Apache License

private PixelFormat parsePixelFormat(ByteBuf m) {

    PixelFormat pf = new PixelFormat();

    pf.setBitPerPixel(m.readUnsignedByte());
    pf.setDepth(m.readUnsignedByte());//w  w w .  j a va  2s. c  o  m
    pf.setBigEndian(m.readUnsignedByte() == 1);
    pf.setTrueColor(m.readUnsignedByte() == 1);
    pf.setRedMax(m.readUnsignedShort());
    pf.setGreenMax(m.readUnsignedShort());
    pf.setBlueMax(m.readUnsignedShort());

    pf.setRedShift(m.readUnsignedByte());
    pf.setGreenShift(m.readUnsignedByte());
    pf.setBlueShift(m.readUnsignedByte());
    m.skipBytes(3);

    return pf;
}

From source file:org.jmqtt.core.util.MqttUtils.java

License:Open Source License

public static boolean checkHeaderAvailability(ByteBuf in) {
    if (in.readableBytes() < 1) {
        return false;
    }//from   w ww. j  a  v  a 2s . c  o m
    //byte h1 = in.get();
    //byte messageType = (byte) ((h1 & 0x00F0) >> 4);
    in.skipBytes(1); //skip the messageType byte

    int remainingLength = decodeRemainingLenght(in);
    if (remainingLength == -1) {
        return false;
    }

    //check remaining length
    if (in.readableBytes() < remainingLength) {
        return false;
    }

    //return messageType == type ? MessageDecoderResult.OK : MessageDecoderResult.NOT_OK;
    return true;
}

From source file:org.l2junity.loginserver.network.client.crypt.Crypt.java

License:Open Source License

@Override
public void encrypt(ByteBuf buf) {
    // Ensure that byte order is little endian because we set new packet size in first 2 bytes
    if (buf.order() != ByteOrder.LITTLE_ENDIAN) {
        buf = buf.order(ByteOrder.LITTLE_ENDIAN);
    }//from   w  w  w . j  ava2  s  . c om

    // Checksum & XOR Key or Checksum only
    buf.writeZero(_static ? 8 : 4);

    // Padding
    buf.writeZero(8 - (buf.readableBytes() % 8));

    if (_static) {
        _static = false;

        int key = Rnd.nextInt();
        buf.skipBytes(4); // The first 4 bytes are ignored
        while (buf.readerIndex() < (buf.writerIndex() - 8)) {
            int data = buf.readInt();
            key += data;
            data ^= key;
            buf.setInt(buf.readerIndex() - 4, data);
        }
        buf.setInt(buf.readerIndex(), key);

        buf.resetReaderIndex();

        final byte[] block = new byte[8];
        while (buf.isReadable(8)) {
            buf.readBytes(block);
            STATIC_BLOWFISH_ENGINE.encryptBlock(block, 0);
            buf.setBytes(buf.readerIndex() - block.length, block);
        }
    } else {
        int checksum = 0;
        while (buf.isReadable(8)) {
            checksum ^= buf.readInt();
        }
        buf.setInt(buf.readerIndex(), checksum);

        buf.resetReaderIndex();

        final byte[] block = new byte[8];
        while (buf.isReadable(8)) {
            buf.readBytes(block);
            _blowfishEngine.encryptBlock(block, 0);
            buf.setBytes(buf.readerIndex() - block.length, block);
        }
    }
}

From source file:org.mobicents.protocols.ss7.m3ua.impl.message.M3UAMessageImpl.java

License:Open Source License

protected void decode(ByteBuf data) {
    while (data.readableBytes() >= 4) {
        short tag = (short) ((data.readUnsignedByte() << 8) | (data.readUnsignedByte()));
        short len = (short) ((data.readUnsignedByte() << 8) | (data.readUnsignedByte()));

        if (data.readableBytes() < len - 4) {
            return;
        }/*from  w  w w  .j ava2s  .co  m*/

        byte[] value = new byte[len - 4];
        data.readBytes(value);
        parameters.put(tag, factory.createParameter(tag, value));

        // The Parameter Length does not include any padding octets. We have
        // to consider padding here
        int padding = 4 - (len % 4);
        if (padding < 4) {
            if (data.readableBytes() < padding)
                return;
            else
                data.skipBytes(padding);
        }
    }
}

From source file:org.mobicents.protocols.ss7.m3ua.impl.message.MessageFactoryImpl.java

License:Open Source License

public M3UAMessageImpl createMessage(ByteBuf message) {
    int dataLen;/*from  www.j ava  2  s  . co  m*/
    if (message.readableBytes() < 8) {
        return null;
    }

    // obtain message class and type from header
    message.markReaderIndex();
    message.skipBytes(2);
    int messageClass = message.readUnsignedByte();
    int messageType = message.readUnsignedByte();

    // obtain remaining length of the message and prepare buffer
    dataLen = message.readInt() - 8;
    if (message.readableBytes() < dataLen) {
        message.resetReaderIndex();
        return null;
    }

    // construct new message instance
    M3UAMessageImpl messageTemp = this.createMessage(messageClass, messageType);

    // parsing params of this message
    message.markWriterIndex();
    message.writerIndex(message.readerIndex() + dataLen);
    messageTemp.decode(message);
    message.resetWriterIndex();

    return messageTemp;
}

From source file:org.msgpack.rpc.loop.netty.MessagePackStreamDecoder.java

License:Apache License

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf msg, List<Object> paramList) throws Exception {

    if (msg.isReadable()) {
        ByteBuffer buffer = msg.nioBuffer();
        Unpacker unpacker = msgpack.createBufferUnpacker(buffer);
        int lastPos = 0;
        try {/* w  w  w . j  a  v a2  s  .c  om*/
            while (buffer.position() < buffer.limit()) {
                Value v = unpacker.readValue();
                paramList.add(v);
                lastPos = buffer.position();
            }
            msg.skipBytes(lastPos);
        } catch (EOFException e) {
            msg.skipBytes(lastPos);
        }
    }
}

From source file:org.neo4j.tools.boltalyzer.AnalyzedSession.java

License:Open Source License

public String describeServerPayload(ByteBuffer payload) throws IOException {
    ByteBuf data = Unpooled.wrappedBuffer(payload);
    String out = " <EMPTY>";

    // TODO: Something more sophisticated than this
    if (serverHandshakeRemaining > 0 && data.readableBytes() > 0) {
        int toRead = Math.min(data.readableBytes(), serverHandshakeRemaining);
        serverHandshakeRemaining -= toRead;
        data.skipBytes(toRead);
        out = " <HANDSHAKE RESPONSE>";
    }/*from ww w  .j a  v  a  2s.  c o  m*/

    if (data.readableBytes() == 0) {
        return out;
    }

    serverStream.handle(data);
    return serverStreamDescriber.flushDescription();
}

From source file:org.neo4j.tools.boltalyzer.AnalyzedSession.java

License:Open Source License

public String describeClientPayload(ByteBuffer payload) throws IOException {
    ByteBuf data = Unpooled.wrappedBuffer(payload);
    String out = " <EMPTY>";

    if (clientHandshakeRemaining > 0 && data.readableBytes() > 0) {
        int toRead = Math.min(data.readableBytes(), clientHandshakeRemaining);
        clientHandshakeRemaining -= toRead;
        data.skipBytes(toRead);
        out = " <HANDSHAKE>";
    }//w  w  w.  ja v a 2 s  .com

    if (data.readableBytes() == 0) {
        return out;
    }

    clientStream.handle(data);
    return clientStreamDescriber.flushDescription();
}

From source file:org.onosproject.lisp.msg.protocols.DefaultLispGenericLocator.java

License:Apache License

/**
 * Deserializes LispGenericLocator message portion.
 *
 * @param byteBuf byte buffer/*from  w w w . j a v a 2 s  . c  o  m*/
 * @return LispGenericLocator
 * @throws LispParseError      LISP message parse error
 * @throws LispReaderException LISP message reader exception
 */
public static LispGenericLocator deserialize(ByteBuf byteBuf) throws LispParseError, LispReaderException {
    // priority -> 8 bits
    byte priority = (byte) byteBuf.readUnsignedByte();

    // weight -> 8 bits
    byte weight = (byte) byteBuf.readUnsignedByte();

    // multi-cast priority -> 8 bits
    byte multicastPriority = (byte) byteBuf.readUnsignedByte();

    // multi-cast weight -> 8 bits
    byte multicastWeight = (byte) byteBuf.readUnsignedByte();

    // let's skip unused flags
    byteBuf.skipBytes(SKIP_UNUSED_FLAG_LENGTH);

    byte flags = byteBuf.readByte();

    // local locator flag -> 1 bit
    boolean localLocator = ByteOperator.getBit(flags, LOCAL_LOCATOR_INDEX);

    // rloc probe flag -> 1 bit
    boolean rlocProbed = ByteOperator.getBit(flags, RLOC_PROBED_INDEX);

    // routed flag -> 1 bit
    boolean routed = ByteOperator.getBit(flags, ROUTED_INDEX);

    LispAfiAddress address = new LispAfiAddress.AfiAddressReader().readFrom(byteBuf);

    return new DefaultLispGenericLocator(priority, weight, multicastPriority, multicastWeight, localLocator,
            rlocProbed, routed, address);
}