static string GetErrorMessage(HarpMessage message)
{
if (message == null)
{
throw new ArgumentNullException(nameof(message));
}
var payloadType = message.PayloadType & ~PayloadType.Timestamp;
if (message.MessageType == MessageType.Write)
{
string payload;
switch (payloadType)
{
case PayloadType.U8: payload = GetPayloadString <byte>(message); break;
case PayloadType.S8: payload = GetPayloadString <sbyte>(message); break;
case PayloadType.U16: payload = GetPayloadString <ushort>(message); break;
case PayloadType.S16: payload = GetPayloadString <short>(message); break;
case PayloadType.U32: payload = GetPayloadString <uint>(message); break;
case PayloadType.S32: payload = GetPayloadString <int>(message); break;
case PayloadType.U64: payload = GetPayloadString <ulong>(message); break;
case PayloadType.S64: payload = GetPayloadString <long>(message); break;
case PayloadType.Float: payload = GetPayloadString <float>(message); break;
default: payload = string.Empty; break;
}
return($"The device reported an erroneous write command.\nPayload: {payload}, Address: {message.Address}, Type: {payloadType}.");
}
else
{
var payload = message.GetPayload();
if (payload.Count == 0)
{
return($"The device reported an erroneous read command.\nType not correct for address {message.Address}.");
}
return($"The device reported an erroneous read command.\nAddress: {message.Address}, Type: {payloadType}.");
}
}
static void CheckErrors(HarpMessage input, PayloadType typeExpected)
{
if (input.Error)
{
throw new InvalidOperationException("The Harp message is an error report.");
}
var payloadLength = input.GetPayload().Count;
if (payloadLength == 0)
{
throw new InvalidOperationException("The Harp message doesn't have a payload.");
}
if ((input.PayloadType & ~PayloadType.Timestamp) != typeExpected)
{
throw new InvalidOperationException("Payload type mismatch.");
}
}
