private static byte[] GetByteArrayPropertyValueFromBuffer(byte[] buffer, int index, PropertyDescriptor onePropertyDescriptor)
{
byte[] returnValue = null;
// if the request was to consume all bytes, then we will do it excluding the trailing checksum
if (onePropertyDescriptor.ByteCount == 0)
{
int checksumIndex = XBeeFrameUtil.CalculateChecksumIndex(buffer);
int lengthToCopy = checksumIndex - index;
returnValue = new byte[lengthToCopy];
Array.Copy(buffer, index, returnValue, 0, lengthToCopy);
}
else
{
returnValue = new byte[onePropertyDescriptor.ByteCount];
Array.Copy(buffer, index, returnValue, 0, onePropertyDescriptor.ByteCount);
}
return returnValue;
}
private static int SetPropertyValueToBuffer(byte[] buffer, int index, object value, PropertyDescriptor onePropertyDescriptor)
{
int writtenBytes = onePropertyDescriptor.ByteCount;
switch (onePropertyDescriptor.PropertyType)
{
case PropertyType.Byte:
buffer[index] = (byte)value;
break;
case PropertyType.Integer:
buffer[index] = (byte)((int)value / 256);
buffer[index + 1] = (byte)((int)value % 256);
break;
case PropertyType.ByteArray:
if (onePropertyDescriptor.ByteCount > 0)
{
Array.Copy((byte[])value, 0, buffer, index, onePropertyDescriptor.ByteCount);
}
else
{
byte[] localValue = (byte[])value;
Array.Copy(localValue, 0, buffer, index, localValue.Length);
writtenBytes = localValue.Length;
}
break;
}
return writtenBytes;
}
private static object GetPropertyValueFromBuffer(byte[] buffer, int index, PropertyDescriptor onePropertyDescriptor)
{
switch (onePropertyDescriptor.PropertyType)
{
case PropertyType.Byte:
return buffer[index];
case PropertyType.Integer:
return buffer[index] * 256 + buffer[index + 1];
case PropertyType.ByteArray:
return GetByteArrayPropertyValueFromBuffer(buffer, index, onePropertyDescriptor);
}
return null;
}
