| public static ToUInt64 ( byte array, int index ) : ulong | ||
| array | byte | Specify an array of bytes. |
| index | int | Specify the starting position. |
| return | ulong | |
/// <summary>
/// Used to de-serialize the element.
/// </summary>
/// <param name="byteArray">A Byte array</param>
/// <param name="currentIndex">Start position</param>
/// <param name="lengthOfItems">The length of the items</param>
protected override void DeserializeItemsFromByteArray(byte[] byteArray, ref int currentIndex, int lengthOfItems)
{
if (lengthOfItems != 8)
{
throw new StreamObjectParseErrorException(currentIndex, "DataSize", "Stream Object over-parse error", null);
}
this.DataSize = LittleEndianBitConverter.ToUInt64(byteArray, currentIndex);
currentIndex += 8;
}
/// <summary>
/// Read specified bit length content as an UInt64 type and increase the bit offset.
/// </summary>
/// <param name="readingLength">Specify the reading bit length.</param>
/// <returns>Return the UInt64 type value.</returns>
public ulong ReadUInt64(int readingLength)
{
byte[] uint64Bytes = this.GetBytes(readingLength, 8);
return(LittleEndianBitConverter.ToUInt64(uint64Bytes, 0));
}
/// <summary>
/// Deserialize response from byte array.
/// </summary>
/// <param name="byteArray">Server returned message.</param>
/// <param name="startIndex">The index special where start.</param>
/// <returns>The instance of CellResponse.</returns>
public static FsshttpbResponse DeserializeResponseFromByteArray(byte[] byteArray, int startIndex)
{
int index = startIndex;
FsshttpbResponse response = new FsshttpbResponse();
response.ProtocolVersion = LittleEndianBitConverter.ToUInt16(byteArray, index);
index += 2;
response.MinimumVersion = LittleEndianBitConverter.ToUInt16(byteArray, index);
index += 2;
response.Signature = LittleEndianBitConverter.ToUInt64(byteArray, index);
index += 8;
int length = 0;
StreamObjectHeaderStart streamObjectHeader;
if ((length = StreamObjectHeaderStart.TryParse(byteArray, index, out streamObjectHeader)) == 0)
{
throw new ResponseParseErrorException(index, "Failed to parse the response header", null);
}
if (!(streamObjectHeader is StreamObjectHeaderStart32bit))
{
throw new ResponseParseErrorException(index, "Unexpected 16-bit response stream object header, expect 32-bit stream object header for Response", null);
}
if (streamObjectHeader.Type != StreamObjectTypeHeaderStart.FsshttpbResponse)
{
throw new ResponseParseErrorException(index, "Failed to extract the response header type, unexpected value " + streamObjectHeader.Type, null);
}
if (streamObjectHeader.Length != 1)
{
throw new ResponseParseErrorException(index, "Response object over-parse error", null);
}
index += length;
response.ResponseStart = streamObjectHeader as StreamObjectHeaderStart32bit;
response.Status = (byteArray[index] & 0x1) == 0x1 ? true : false;
response.Reserved = (byte)(byteArray[index] >> 1);
index += 1;
try
{
if (response.Status)
{
response.ResponseError = StreamObject.GetCurrent <ResponseError>(byteArray, ref index);
response.DataElementPackage = null;
response.CellSubResponses = null;
}
else
{
DataElementPackage package;
if (StreamObject.TryGetCurrent <DataElementPackage>(byteArray, ref index, out package))
{
response.DataElementPackage = package;
}
response.CellSubResponses = new List <FsshttpbSubResponse>();
FsshttpbSubResponse subResponse;
while (StreamObject.TryGetCurrent <FsshttpbSubResponse>(byteArray, ref index, out subResponse))
{
response.CellSubResponses.Add(subResponse);
}
}
response.ResponseEnd = BasicObject.Parse <StreamObjectHeaderEnd16bit>(byteArray, ref index);
}
catch (StreamObjectParseErrorException streamObjectException)
{
throw new ResponseParseErrorException(index, streamObjectException);
}
catch (DataElementParseErrorException dataElementException)
{
throw new ResponseParseErrorException(index, dataElementException);
}
catch (KnowledgeParseErrorException knowledgeException)
{
throw new ResponseParseErrorException(index, knowledgeException);
}
if (index != byteArray.Length)
{
throw new ResponseParseErrorException(index, "Failed to pass the whole response, not reach the end of the byte array", null);
}
return(response);
}