Example usage for io.netty.buffer ByteBuf writeShort

Introduction

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

Prototype

public abstract ByteBuf writeShort(int value);

Source Link

Document

Sets the specified 16-bit short integer at the current writerIndex and increases the writerIndex by 2 in this buffer.

Usage

From source file:me.melchor9000.net.resolver.DNSResourceRecord.java

License:Open Source License

@Override
public void toByteBuf(@NotNull ByteBuf buffer) {
    writeName(buffer, name);/*from ww  w.  j a v  a  2 s. c  o m*/
    buffer.writeShort(type);
    buffer.writeShort(nclass);
    buffer.writeInt((int) ttl);
    buffer.writeShort(data != null ? data.byteBufSize() : 0);
    if (data != null)
        data.toByteBuf(buffer);
}

From source file:net.epsilony.utils.codec.modbus.func.ReadRegistersFunction.java

License:Open Source License

@Override
public void encodeRequestData(ByteBuf data) {
    data.writeShort(startingAddress);
    data.writeShort(quantity);
}

From source file:net.epsilony.utils.codec.modbus.func.WriteCoilFunction.java

License:Open Source License

@Override
public void encodeRequestData(ByteBuf data) {
    data.writeShort(address);
    data.writeShort(value ? 0xFF00 : 0x0000);

}

From source file:net.epsilony.utils.codec.modbus.func.WriteHoldingFunction.java

License:Open Source License

@Override
public void encodeRequestData(ByteBuf data) {
    data.writeShort(address);
    data.writeShort(value);

}

From source file:net.epsilony.utils.codec.modbus.handler.ModbusMasterRequestEncoder.java

License:Open Source License

@Override
protected void encode(ChannelHandlerContext ctx, ModbusRequest msg, ByteBuf out) throws Exception {
    int from = out.writerIndex();
    out.writeShort(msg.getTransectionId());
    out.writeShort(0);//from  w w w  .j ava  2s .  c o  m
    out.writeShort(2 + msg.getFunction().getRequestDataLength());
    out.writeByte(msg.getUnitId());
    out.writeByte(msg.getFunction().getCode());
    msg.getFunction().encodeRequestData(out);
    if (withCheckSum) {
        out.writeShort(checkSum(out, from));
    }
}

From source file:net.epsilony.utils.codec.modbus.handler.ModbusSlaveResponseEncoder.java

License:Open Source License

@Override
protected void encode(ChannelHandlerContext ctx, ModbusResponse msg, ByteBuf out) throws Exception {
    int from = out.writerIndex();
    msg.encode(out);//from   w w w.  j a  v  a 2s .  com
    if (withCheckSum) {
        out.writeShort(Utils.crc(out, from, out.writerIndex() - from));
    }
}

From source file:net.epsilony.utils.codec.modbus.handler.ModbusSlaveResponseEncoderTest.java

License:Open Source License

@Test
public void test() {
    ModbusSlaveResponseEncoder encoder = new ModbusSlaveResponseEncoder();
    EmbeddedChannel channel = new EmbeddedChannel(encoder);

    ModbusResponse response = new ModbusResponse() {
        {//from w  w w.  j  a v a  2 s.  c  o  m
            transectionId = 0xabcd;
            unitId = 0x83;
        }

        @Override
        public void writePduCore(ByteBuf out) {
            out.writeShort(0xabcd);
            out.writeShort(0xcdef);
            transectionId++;

        }

        @Override
        public int getPduCoreLength() {
            return 4;
        }

        @Override
        public int getFunctionCode() {
            // TODO Auto-generated method stub
            return 6;
        }
    };

    ByteBuf buf = null;
    for (int i = 0; i < 3; i++) {
        channel.writeOutbound(response);
        buf = (ByteBuf) channel.readOutbound();
        int[] buffer = new int[] { 0xab, 0xcd + i, 0x00, 0x00, 0x00, 0x06, 0x83, 0x06, 0xab, 0xcd, 0xcd, 0xef };
        assertEquals(buffer.length, buf.readableBytes());
        for (int b : buffer) {
            assertEquals(b, buf.readUnsignedByte());
        }
        assertTrue(!buf.isReadable());
        ReferenceCountUtil.release(buf);
    }

    for (int i = 0; i < 3; i++) {
        channel.writeOutbound(response);
    }

    for (int i = 0; i < 3; i++) {
        buf = (ByteBuf) channel.readOutbound();
        int[] buffer = new int[] { 0xab, 0xcd + i + 3, 0x00, 0x00, 0x00, 0x06, 0x83, 0x06, 0xab, 0xcd, 0xcd,
                0xef };
        assertEquals(buffer.length, buf.readableBytes());
        for (int b : buffer) {
            assertEquals(b, buf.readUnsignedByte());
        }
        assertTrue(!buf.isReadable());
        ReferenceCountUtil.release(buf);
    }

    encoder.setWithCheckSum(true);
    for (int i = 0; i < 3; i++) {
        channel.writeOutbound(response);
    }
    for (int i = 0; i < 3; i++) {
        buf = (ByteBuf) channel.readOutbound();
        int[] buffer = new int[] { 0xab, 0xcd + i + 6, 0x00, 0x00, 0x00, 0x06, 0x83, 0x06, 0xab, 0xcd, 0xcd,
                0xef };
        assertEquals(buffer.length, buf.readableBytes() - 2);
        for (int b : buffer) {
            assertEquals(b, buf.readUnsignedByte());
        }
        int calcCrc = Utils.crc(buf, buf.readerIndex() - buffer.length, buffer.length);
        assertEquals(calcCrc, buf.readUnsignedShort());
        assertTrue(!buf.isReadable());
        ReferenceCountUtil.release(buf);
    }
}

From source file:net.epsilony.utils.codec.modbus.reqres.ModbusResponse.java

License:Open Source License

public void encode(ByteBuf out) {
    out.writeShort(transectionId);
    out.writeShort(0);/*from ww w.j a  v a 2  s .  co m*/
    out.writeShort(getPduCoreLength() + 2);
    out.writeByte(unitId);
    out.writeByte(getFunctionCode());
    writePduCore(out);
}

From source file:net.epsilony.utils.codec.modbus.reqres.ReadWordRegistersResponse.java

License:Open Source License

@Override
public void writePduCore(ByteBuf out) {
    out.writeByte(2 * quantity);/*from w w w  .  ja  v  a  2  s. co  m*/
    for (int i = 0; i < quantity; i++) {
        out.writeShort(getValue(i));
    }
}

From source file:net.epsilony.utils.codec.modbus.reqres.WriteCoilResponse.java

License:Open Source License

@Override
public void writePduCore(ByteBuf out) {
    out.writeShort(address);
    out.writeShort(value ? 0xFF00 : 0x0000);

}