public MessageDecoderResult Decode(IoSession session, IoBuffer input, IProtocolDecoderOutput output)
{
// Try to skip header if not read.
if (!_readHeader)
{
input.GetInt16(); // Skip 'type'.
_sequence = input.GetInt32(); // Get 'sequence'.
_readHeader = true;
}
// Try to decode body
AbstractMessage m = DecodeBody(session, input);
// Return NEED_DATA if the body is not fully read.
if (m == null)
{
return MessageDecoderResult.NeedData;
}
else
{
_readHeader = false; // reset readHeader for the next decode
}
m.Sequence = _sequence;
output.Write(m);
return MessageDecoderResult.OK;
}
protected override AbstractMessage DecodeBody(IoSession session, IoBuffer input)
{
if (!_readCode)
{
if (input.Remaining < Constants.RESULT_CODE_LEN)
{
return null; // Need more data.
}
_code = input.GetInt16();
_readCode = true;
}
if (_code == Constants.RESULT_OK)
{
if (input.Remaining < Constants.RESULT_VALUE_LEN)
{
return null;
}
ResultMessage m = new ResultMessage();
m.OK = true;
m.Value = input.GetInt32();
_readCode = false;
return m;
}
else
{
ResultMessage m = new ResultMessage();
m.OK = false;
_readCode = false;
return m;
}
}
internal ParameterListEncapsulation(IoBuffer bb)
{
#if TODO
this.options = bb.GetInt16();
this.parameters = bb.GetParameterList();
#endif
throw new NotImplementedException();
}
public MessageDecoderResult Decodable(IoSession session, IoBuffer input)
{
// Return NeedData if the whole header is not read yet.
if (input.Remaining < Constants.HEADER_LEN)
return MessageDecoderResult.NeedData;
// Return OK if type and bodyLength matches.
if (_type == input.GetInt16())
return MessageDecoderResult.OK;
// Return NotOK if not matches.
return MessageDecoderResult.NotOK;
}
public void TestGetUnsigned()
{
IoBuffer buf = IoBuffer.Allocate(16);
buf.Put((byte)0xA4);
buf.Put((byte)0xD0);
buf.Put((byte)0xB3);
buf.Put((byte)0xCD);
buf.Flip();
buf.Order = ByteOrder.LittleEndian;
buf.Mark();
Assert.AreEqual(0xA4, buf.Get());
buf.Reset();
Assert.AreEqual(0xD0A4, (UInt16)buf.GetInt16());
buf.Reset();
Assert.AreEqual(0xCDB3D0A4L, (UInt32)buf.GetInt32());
}
/// <inheritdoc/>
public override Int16 GetInt16()
{
return(_buf.GetInt16());
}
public static void ReadPrimitive(IoBuffer buffer, out short value)
{
value = buffer.GetInt16();
}