public static KNXmessage CreateReadResponse(FAHFunctionPropertyCommand MessageToRespondTo, FaHDevice atHomeDevice)
{
try
{
if (MessageToRespondTo.PropertyControl != FAHFunctionPropertyCommand.PropertyControlTypes.ReadDesc)
{
throw new InvalidCastException();
}
int ChannelIndex = MessageToRespondTo.ObjectID;
int propIndex = MessageToRespondTo.PropertyID;
byte[] bData;
bool moreIndices;
if (!atHomeDevice.ReadDescriptorValue(ChannelIndex, propIndex, out bData, out moreIndices))
{
return(MessageToRespondTo.CreateCommandNotSupportedMessage());
}
KNXmessage kNXmessage = new KNXmessage(knxControlField.KnxPacketType.KNX_PacketShort)
{
DestinationAddressType = KNXmessage.DestinationAddressFieldType.Individual
};
const int HEADERSIZE = 5;
//Todo, check lenght?
uint payloadSize = (uint)(HEADERSIZE + bData.Length);
kNXmessage.Payload.NewPayload(KNXAdpu.ApduType.FunctionPropertyStateResponse, payloadSize);
kNXmessage.Payload.ReadablePayloadPacket = new FPSR_DescriptorValueRead(kNXmessage.Payload);
FPSR_DescriptorValueRead newPkg = (FPSR_DescriptorValueRead)kNXmessage.Payload.ReadablePayloadPacket;
newPkg.UpdatePacketSettings();
newPkg.FPSRpayload = bData;
newPkg.PropertyID = MessageToRespondTo.PropertyID;
newPkg.ObjectID = MessageToRespondTo.ObjectID;
if (moreIndices)
{
newPkg.resultCode = KNXHelpers.knxPropertyReturnValues.MoreIndices;
}
else
{
newPkg.resultCode = KNXHelpers.knxPropertyReturnValues.Success;
}
return(kNXmessage);
}
catch
{
return(MessageToRespondTo.CreateCommandFailedMessage());
}
}