Example usage for io.netty.buffer ByteBuf 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.digitalpetri.modbus.codec.ModbusResponseEncoder.java

License:Apache License

private ByteBuf encodeWriteSingleCoil(WriteSingleCoilResponse response, ByteBuf buffer) {
    buffer.writeByte(response.getFunctionCode().getCode());
    buffer.writeShort(response.getAddress());
    buffer.writeShort(response.getValue());

    return buffer;
}

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

License:Apache License

private ByteBuf encodeWriteSingleRegister(WriteSingleRegisterResponse response, ByteBuf buffer) {
    buffer.writeByte(response.getFunctionCode().getCode());
    buffer.writeShort(response.getAddress());
    buffer.writeShort(response.getValue());

    return buffer;
}

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

License:Apache License

private ByteBuf encodeWriteMultipleCoils(WriteMultipleCoilsResponse response, ByteBuf buffer) {
    buffer.writeByte(response.getFunctionCode().getCode());
    buffer.writeShort(response.getAddress());
    buffer.writeShort(response.getQuantity());

    return buffer;
}

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

License:Apache License

private ByteBuf encodeWriteMultipleRegisters(WriteMultipleRegistersResponse response, ByteBuf buffer) {
    buffer.writeByte(response.getFunctionCode().getCode());
    buffer.writeShort(response.getAddress());
    buffer.writeShort(response.getQuantity());

    return buffer;
}

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

License:Apache License

private ByteBuf encodeMaskWriteRegister(MaskWriteRegisterResponse response, ByteBuf buffer) {
    buffer.writeByte(response.getFunctionCode().getCode());
    buffer.writeShort(response.getAddress());
    buffer.writeShort(response.getAndMask());
    buffer.writeShort(response.getOrMask());

    return buffer;
}

From source file:com.digitalpetri.opcua.stack.core.channel.ChunkEncoder.java

License:Apache License

private void writePadding(int cipherTextBlockSize, int paddingSize, ByteBuf buffer) {
    if (cipherTextBlockSize > 256) {
        buffer.writeShort(paddingSize);//from  w ww  .  ja  v a 2s  .com
    } else {
        buffer.writeByte(paddingSize);
    }

    for (int i = 0; i < paddingSize; i++) {
        buffer.writeByte(paddingSize);
    }

    if (cipherTextBlockSize > 256) {
        // Replace the last byte with the MSB of the 2-byte padding length
        int paddingLengthMSB = paddingSize >> 8;
        buffer.writerIndex(buffer.writerIndex() - 1);
        buffer.writeByte(paddingLengthMSB);
    }
}

From source file:com.digitalpetri.opcua.stack.core.channel.headers.SecureMessageHeader.java

License:Apache License

public static void encode(SecureMessageHeader header, ByteBuf buffer) throws UaException {
    buffer.writeMedium(MessageType.toMediumInt(header.getMessageType()));
    buffer.writeByte(header.getChunkType());
    buffer.writeInt((int) header.getMessageSize());
    buffer.writeInt((int) header.getSecureChannelId());
}

From source file:com.digitalpetri.opcua.stack.core.channel.messages.TcpMessageEncoder.java

License:Apache License

/**
 * Encode a simple UA TCP message./*w w  w  . j  ava2 s . c o m*/
 *
 * @param messageType    {@link MessageType#Hello}, {@link MessageType#Acknowledge}, or {@link MessageType#Error}.
 * @param messageEncoder a function that encodes the message payload.
 * @param buffer         the {@link ByteBuf} to encode into.
 */
private static ByteBuf encode(MessageType messageType, Consumer<ByteBuf> messageEncoder, ByteBuf buffer)
        throws UaException {
    buffer.writeMedium(MessageType.toMediumInt(messageType));
    buffer.writeByte('F');

    int lengthIndex = buffer.writerIndex();
    buffer.writeInt(0);

    int indexBefore = buffer.writerIndex();
    messageEncoder.accept(buffer);
    int indexAfter = buffer.writerIndex();
    int bytesWritten = indexAfter - indexBefore;

    buffer.writerIndex(lengthIndex);
    buffer.writeInt(8 + bytesWritten);
    buffer.writerIndex(indexAfter);

    return buffer;
}

From source file:com.doctor.netty5.example.factorial_algorithm.NumberEncoder.java

License:Apache License

@Override
protected void encode(ChannelHandlerContext ctx, Number msg, ByteBuf out) throws Exception {

    if (msg == null) {
        throw new RuntimeException("not null");
    }//w w  w  .  ja  v a2  s  .  c o m
    BigInteger integer = null;
    if (msg instanceof BigInteger) {
        integer = (BigInteger) msg;
    } else {
        integer = new BigInteger(String.valueOf(msg));
    }

    byte[] byteArray = integer.toByteArray();
    // ?F +  +  -> 1 + 4 + ?
    out.writeByte((byte) 'F');
    out.writeInt(byteArray.length);
    out.writeBytes(byteArray);
}

From source file:com.dwarf.netty.guide.factorial.NumberEncoder.java

License:Apache License

@Override
protected void encode(ChannelHandlerContext ctx, Number msg, ByteBuf out) {
    // Convert to a BigInteger first for easier implementation.
    BigInteger v;//  w  ww .jav  a  2s  .  c  o m
    if (msg instanceof BigInteger) {
        v = (BigInteger) msg;
    } else {
        v = new BigInteger(String.valueOf(msg));
    }

    // Convert the number into a byte array.
    byte[] data = v.toByteArray();
    int dataLength = data.length;

    // Write a message.
    out.writeByte((byte) 'F'); // magic number
    out.writeInt(dataLength); // data length
    out.writeBytes(data); // data
}