private static ushort GetPacketSize(ILifxPayload payload)
{
// TODO: is there a nicer way to get the payload size? Serializing it twice feels a bit circular.
// maybe just put it on the interface?
const int headerSize = 36;
using (var tempPayloadStream = new MemoryStream())
{
payload.WriteToStream(new BinaryWriter(tempPayloadStream));
return((ushort)(headerSize + tempPayloadStream.ToArray().Length));
}
}
public static LifxMessage CreateBroadcast(ILifxPayload payload, uint sourceIdentifier, bool responseRequired, bool ackRequired, byte sequenceNum)
{
ushort size = GetPacketSize(payload);
return(new LifxMessage(
new LifxHeader(
new Frame(size, 0x400, true, true, 0, sourceIdentifier),
new FrameAddress(new byte[8], responseRequired, ackRequired, sequenceNum),
new ProtocolHeader(payload.MessageType)),
payload,
null));
}
// TODO: split into CreateCommand/CreateQuery to take away responseRequired/ackRequired parameters?
// do we ever want/need to set responseRequired?
// maybe pull sourceIdentifier/sequenceNum generation inside a class?
public static LifxMessage CreateTargeted(ILifxPayload payload, uint sourceIdentifier, bool responseRequired, bool ackRequired, byte sequenceNum, byte[] targetMac, IUdpClient respondClient)
{
ushort size = GetPacketSize(payload);
return(new LifxMessage(
new LifxHeader(
new Frame(size, 0x400, true, false, 0, sourceIdentifier),
new FrameAddress(targetMac, responseRequired, ackRequired, sequenceNum),
new ProtocolHeader(payload.MessageType)),
payload,
respondClient));
}
private static LifxMessage FromPayloadBytes(LifxHeader header, byte[] payload, IUdpClient respondClient)
{
ILifxPayload parsedPayload = null;
switch (header.ProtocolHeader.MessageType)
{
case MessageType.DeviceAcknowledgement:
parsedPayload = AcknowledgementResponse.FromBytes();
break;
case MessageType.DeviceStateLabel:
parsedPayload = StateLabelResponse.FromBytes(payload);
break;
case MessageType.LightState:
parsedPayload = LightStateResponse.FromBytes(payload);
break;
case MessageType.LightStatePower:
parsedPayload = LightPowerResponse.FromBytes(payload);
break;
case MessageType.DeviceStateVersion:
parsedPayload = StateVersionResponse.FromBytes(payload);
break;
case MessageType.DeviceStateHostFirmware:
parsedPayload = StateHostFirmwareResponse.FromBytes(payload);
break;
case MessageType.DeviceStateService:
parsedPayload = StateServiceResponse.FromBytes(payload);
break;
default:
parsedPayload = UnknownResponse.FromBytes(payload);
break;
}
return(new LifxMessage(header, parsedPayload, respondClient));
}
internal LifxMessage(LifxHeader header, ILifxPayload payload, IUdpClient respondClient)
{
Header = header;
Payload = payload;
RespondClient = respondClient;
}