public static string ComputeHash(byte[] bytes, CrcAlgorithm crcAlgorithm)
{
Parameters parameters = CrcStdParams.Get(crcAlgorithm);
Crc crc = new Crc(parameters);
IEnumerable <byte> result = crc.ComputeHash(bytes).Take(parameters.HashSize / 8).Reverse();
return(HexUtil.ConvertHexStringArrayToHexString(HexUtil.ConvertByteArrayToHexStringArray(result)));
}
public override Location Parse(MessageInput input)
{
PackageIdentifier packageIdentifier = (PackageIdentifier)input.DataMessage.Bytes[2];
Dictionary <PackageIdentifier, Func <Location> > dictionary = new Dictionary <PackageIdentifier, Func <Location> >
{
{
PackageIdentifier.Login, () =>
{
HandleLoginPackage(input);
return(null);
}
},
{
PackageIdentifier.Heartbeat, () =>
{
SendAcknowledge(input);
return(null);
}
},
{ PackageIdentifier.Location, () => HandleLocationForV20(input) },
{ PackageIdentifier.Warning, () => HandleLocationForV20(input) },
{ PackageIdentifier.Report, () => HandleLocationForV20(input) },
{
PackageIdentifier.Message, () =>
{
Location location = GetLocationV20(input);
string number =
HexUtil.ConvertHexStringArrayToHexString(
HexUtil.ConvertByteArrayToHexStringArray(input.DataMessage.ByteReader.Get(21)));
SendAcknowledge(input, number);
return(location);
}
},
{
PackageIdentifier.ParamSet, () =>
{
SendAcknowledge(input, "00");
return(null);
}
},
{ PackageIdentifier.GPSOld, () => HandleMessageForV18(input, false) },
{ PackageIdentifier.AlarmOld, () => HandleMessageForV18(input) },
{ PackageIdentifier.TerminalStateOld, () => HandleMessageForV18(input) }
};
return(dictionary.ContainsKey(packageIdentifier) ? dictionary[packageIdentifier].Invoke() : null);
}
public DataMessage(byte[] bytes, string splitMessageBy)
{
Bytes = bytes;
Hex = HexUtil.ConvertByteArrayToHexStringArray(Bytes);
HexString = string.Join("", Hex);
String = Encoding.ASCII.GetString(Bytes);
CommaSplit = String.Split(",");
BarSplit = String.Split("|");
Reader = new MessageReader(String);
ByteReader = new ByteReader(bytes);
Split = string.IsNullOrEmpty(splitMessageBy) ? CommaSplit : String.Split(splitMessageBy);
}