public static AttributeBaseResponse Create(byte[] payload)
{
bool isManufacturerSpecific = BitHelpers.GetBit(payload[0], 6);
var commandID = isManufacturerSpecific ? payload[7] : payload[6];
switch (commandID)
{
case 0x01: return(new ReadAttributesResponse(payload));
case 0x0A: return(new ReportAttributesResponse(payload));
case 0x0B: return(new DefaultAttributesResponse(payload));
case 0x0D: return(new DiscoverAttributesResponse(payload));
default: return(new UnknownAttributeResponse(payload));
}
}
public Attribute(byte[] data)
{
AttributeID = BitHelpers.ToUInt16(data, 0);
DataType = (ZigbeeDataType)data[2];
}
internal AttributeRecord(byte[] data, int start, out int length, bool includeStatusByte = false)
{
AttributeID = BitHelpers.ToUInt16(data, start);
if (includeStatusByte)
{
Success = data[start + 1] == 0x00;
}
int offset = includeStatusByte ? 1 : 0;
DataType = (ZigbeeDataType)data[start + 2 + offset];
length = 3 + offset;
switch (DataType)
{
case ZigbeeDataType.UInt8:
case ZigbeeDataType.GeneralData8Bit:
case ZigbeeDataType.Enumeration8:
Data = data[start + length++];
break;
case ZigbeeDataType.GeneralData16Bit:
Data = data.Skip(start + length).Take(2).ToArray();
length += 2;
break;
case ZigbeeDataType.GeneralData24Bit:
Data = data.Skip(start + length).Take(3).ToArray();
length += 3;
break;
case ZigbeeDataType.GeneralData32Bit:
Data = data.Skip(start + length).Take(4).ToArray();
length += 4;
break;
case ZigbeeDataType.GeneralData40Bit:
Data = data.Skip(start + length).Take(5).ToArray();
length += 5;
break;
case ZigbeeDataType.GeneralData48Bit:
Data = data.Skip(start + length).Take(6).ToArray();
length += 6;
break;
case ZigbeeDataType.GeneralData56Bit:
Data = data.Skip(start + length).Take(7).ToArray();
length += 7;
break;
case ZigbeeDataType.GeneralData64Bit:
Data = data.Skip(start + length).Take(8).ToArray();
length += 8;
break;
case ZigbeeDataType.Boolean:
Data = data[start + length++] == 0x01; //TODO: 0xff means invalid
break;
case ZigbeeDataType.Array:
ushort len = BitHelpers.ToUInt16(data, 0);
length += 2;
Data = data.Skip(start + length).Take(len).ToArray();
break;
case ZigbeeDataType.UInt16:
case ZigbeeDataType.Enumeration16:
case ZigbeeDataType.ClusterID:
case ZigbeeDataType.AttributeID:
Data = BitHelpers.ToUInt16(data, start + length);
length += 2;
break;
case ZigbeeDataType.UInt32:
Data = BitHelpers.ToUInt32(data, start + length);
length += 4;
break;
case ZigbeeDataType.UInt48:
Data = BitHelpers.ToUInt64((new byte[] { 0x00, 0x00 }).Concat(data.Skip(start + length).Take(6)).ToArray(), 0);
System.Diagnostics.Debug.WriteLine("UInt48 not supported");
length += 6;
break;
case ZigbeeDataType.UInt64:
Data = BitHelpers.ToUInt64(data, start + length);
length += 8;
break;
case ZigbeeDataType.Int16:
Data = BitHelpers.ToInt16(data, start + length);
length += 2;
break;
case ZigbeeDataType.TimeOfDay:
Data = new TimeSpan(data[start + length], data[start + length + 1], data[start + length + 2], data[start + length + 3] + 10);
length += 4;
break;
case ZigbeeDataType.Date:
Data = new DateTime(data[start + length] + 1900, data[start + length + 1], data[start + length + 2]);
length += 4;
break;
case ZigbeeDataType.UtcTime:
Data = new DateTime(2000, 1, 1, 0, 0, 0, DateTimeKind.Utc).AddMilliseconds(BitHelpers.ToUInt32(data, start + length));
length += 4;
break;
case ZigbeeDataType.Null:
break;
default:
//TODO
System.Diagnostics.Debug.WriteLine("Unknown data type: " + DataType.ToString());
break;
}
}
