public override ParserResult Parse()
{
ParserResult result = null;
if (data.Length > MinSizeDataPacket)
{
var startByteList = new TrackerTypeData.TypePacketData[] { TrackerTypeData.TypePacketData.Answer, TrackerTypeData.TypePacketData.AsyncData, TrackerTypeData.TypePacketData.Request };
var startByteIndex = 0;
while (startByteIndex < startByteList.Length)
{
var startByte = Array.IndexOf(data, (byte)startByteList[startByteIndex]);
if (startByte != -1)
{
var lenWholePacket = BitConverter.ToUInt16(data, (int)TrackerTypeData.PacketField.PacketLenByteL);
byte[] crcArray = new byte[lenWholePacket - 2];
if (data.Length >= crcArray.Length)
{
Array.Copy(data, 0, crcArray, 0, crcArray.Length);
if (CrcCalc.Crc16(crcArray) == BitConverter.ToUInt16(data, lenWholePacket - 2))
{
var packet = (TrackerTypeData.TypePacketData)(int) data[(int)TrackerTypeData.PacketField.PacketHeaderIndex];
var typeMessage = (TrackerTypeData.TypeMessage)data[(int)TrackerTypeData.PacketField.PacketTypeMessageIndex];
var paramCount = data[(int)TrackerTypeData.PacketField.PacketParamCountIndex];
var bodyData = ParseField(data, (int)TrackerTypeData.PacketField.PacketStartDataInPacketIndex, paramCount);
result = new ParserResult(packet, bodyData, typeMessage);
}
else
{
return(null);
}
}
}
startByteIndex += 1;
}
}
return(result);
}
public ParserResult(TrackerTypeData.TypePacketData _type, List <DataItemParam> _data, TypeMessage _typeMessage)
{
type = _type;
data = _data;
typeMessage = _typeMessage;
}
