Example usage for io.netty.buffer ByteBuf readSlice

Introduction

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

Prototype

public abstract ByteBuf readSlice(int length);

Source Link

Document

Returns a new slice of this buffer's sub-region starting at the current readerIndex and increases the readerIndex by the size of the new slice (= length ).

Usage

From source file:com.antsdb.saltedfish.server.mysql.packet.LongDataPacket.java

License:Open Source License

@Override
public void read(MysqlServerHandler handler, ByteBuf in) {
    this.content = in.readSlice(this.packetLength);
    content.retain();// ww  w.  j  av a2  s .  com
}

From source file:com.cloudhopper.smpp.transcoder.DefaultPduTranscoder.java

License:Apache License

@Override
public Pdu decode(ByteBuf buffer) throws UnrecoverablePduException, RecoverablePduException {
    // wait until the length prefix is available
    if (buffer.readableBytes() < SmppConstants.PDU_INT_LENGTH) {
        return null;
    }/*from  w w  w. j  av  a 2 s.  c om*/

    // parse the command length (first 4 bytes)
    int commandLength = buffer.getInt(buffer.readerIndex());
    //logger.trace("PDU commandLength [" + commandLength + "]");

    // valid command length is >= 16 bytes
    if (commandLength < SmppConstants.PDU_HEADER_LENGTH) {
        throw new UnrecoverablePduException(
                "Invalid PDU length [0x" + HexUtil.toHexString(commandLength) + "] parsed");
    }

    // wait until the whole pdu is available (entire pdu)
    if (buffer.readableBytes() < commandLength) {
        return null;
    }

    // at this point, we have the entire PDU and length already in the buffer
    // we'll create a new "view" of this PDU and read the data from the actual buffer
    // NOTE: this should be super fast since the underlying byte array doesn't get copied
    ByteBuf buffer0 = buffer.readSlice(commandLength);

    return doDecode(commandLength, buffer0);
}

From source file:com.datastax.driver.core.CBUtil.java

License:Apache License

public static ByteBuffer readValue(ByteBuf cb) {
    int length = cb.readInt();
    if (length < 0)
        return null;
    ByteBuf slice = cb.readSlice(length);

    return ByteBuffer.wrap(readRawBytes(slice));
}

From source file:com.digitalpetri.modbus.codec.ModbusRequestDecoder.java

License:Apache License

private WriteMultipleCoilsRequest decodeWriteMultipleCoils(ByteBuf buffer) {
    int address = buffer.readUnsignedShort();
    int quantity = buffer.readUnsignedShort();
    int byteCount = buffer.readUnsignedByte();
    ByteBuf values = buffer.readSlice(byteCount).retain();

    return new WriteMultipleCoilsRequest(address, quantity, values);
}

From source file:com.digitalpetri.modbus.codec.ModbusRequestDecoder.java

License:Apache License

private WriteMultipleRegistersRequest decodeWriteMultipleRegisters(ByteBuf buffer) {
    int address = buffer.readUnsignedShort();
    int quantity = buffer.readUnsignedShort();
    int byteCount = buffer.readByte();
    ByteBuf values = buffer.readSlice(byteCount).retain();

    return new WriteMultipleRegistersRequest(address, quantity, values);
}

From source file:com.digitalpetri.modbus.codec.ModbusResponseDecoder.java

License:Apache License

public ReadCoilsResponse decodeReadCoils(ByteBuf buffer) {
    int byteCount = buffer.readUnsignedByte();
    ByteBuf coilStatus = buffer.readSlice(byteCount).retain();

    return new ReadCoilsResponse(coilStatus);
}

From source file:com.digitalpetri.modbus.codec.ModbusResponseDecoder.java

License:Apache License

public ReadDiscreteInputsResponse decodeReadDiscreteInputs(ByteBuf buffer) {
    int byteCount = buffer.readUnsignedByte();
    ByteBuf inputStatus = buffer.readSlice(byteCount).retain();

    return new ReadDiscreteInputsResponse(inputStatus);
}

From source file:com.digitalpetri.modbus.codec.ModbusResponseDecoder.java

License:Apache License

public ReadHoldingRegistersResponse decodeReadHoldingRegisters(ByteBuf buffer) {
    int byteCount = buffer.readUnsignedByte();
    ByteBuf registers = buffer.readSlice(byteCount).retain();

    return new ReadHoldingRegistersResponse(registers);
}

From source file:com.digitalpetri.modbus.codec.ModbusResponseDecoder.java

License:Apache License

public ReadInputRegistersResponse decodeReadInputRegisters(ByteBuf buffer) {
    int byteCount = buffer.readUnsignedByte();
    ByteBuf registers = buffer.readSlice(byteCount).retain();

    return new ReadInputRegistersResponse(registers);
}

From source file:com.digitalpetri.opcua.stack.client.handlers.UaTcpClientAcknowledgeHandler.java

License:Apache License

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf buffer, List<Object> out) throws Exception {
    buffer = buffer.order(ByteOrder.LITTLE_ENDIAN);

    while (buffer.readableBytes() >= HEADER_LENGTH && buffer.readableBytes() >= getMessageLength(buffer)) {

        int messageLength = getMessageLength(buffer);
        MessageType messageType = MessageType.fromMediumInt(buffer.getMedium(buffer.readerIndex()));

        switch (messageType) {
        case Acknowledge:
            onAcknowledge(ctx, buffer.readSlice(messageLength));
            break;

        case Error:
            onError(ctx, buffer.readSlice(messageLength));
            break;

        default:/*from w  w  w . j a va  2  s  .c  om*/
            out.add(buffer.readSlice(messageLength).retain());
        }
    }
}