コード例 #1
0
        public AvlData Decode(IBitReader reader)
        {
            DateTime dateTime = reader != null?DateTimeExt.FromAvl(reader.ReadInt64()) : throw new ArgumentNullException(nameof(reader));

            AvlDataPriority priority = (AvlDataPriority)reader.ReadByte();
            GpsElement      gps      = DefaultGpsElementEncoding.Instance.Decode(reader);
            IoElement       data     = DefaultIOElementEncoding.Instance16.Decode(reader);

            return(new AvlData(priority, dateTime, gps, data));
        }
コード例 #2
0
        public AvlData Decode(IBitReader reader)
        {
            DateTime dateTime = reader != null?DateTimeExt.FromAvl(reader.ReadUInt32() * 1000L + reader.ReadByte() * 10) : throw new ArgumentNullException(nameof(reader));

            AvlDataPriority priority      = (AvlDataPriority)reader.ReadByte();
            GpsElementExt   gpsElementExt = FMPro3GpsElementEncoding.Instance.Decode(reader);
            IoElement       data          = FMPro3IOElementEncoding.Instance.Decode(reader);

            data.Add(gpsElementExt.IO[500001]);
            return(new AvlData(priority, dateTime, gpsElementExt.GPS, data));
        }
コード例 #3
0
        public AvlData Decode(IBitReader reader)
        {
            DateTime dateTime = reader != null?DateTimeExt.FromAvl(reader.ReadInt64()) : throw new ArgumentNullException(nameof(reader));

            AvlDataPriority priority = AvlDataPriority.Low;
            byte            num      = reader.ReadByte();

            if (num > 10 && num <= 20)
            {
                priority = AvlDataPriority.High;
            }
            GpsElement gps  = DefaultGpsElementEncoding.Instance.Decode(reader);
            IoElement  data = LegacyIoElementEncoding.Instance.Decode(reader);

            if (priority == AvlDataPriority.High)
            {
                data = new IoElement(-1, data.Properties);
            }
            return(new AvlData(priority, dateTime, gps, data));
        }
コード例 #4
0
        public AvlData Decode(IBitReader reader)
        {
            byte num = reader != null?reader.ReadByte() : throw new ArgumentNullException(nameof(reader));

            byte[] buffer = reader.ReadBytes(num);
            if (reader.ReadByte() != CRC.CalculateXor(buffer))
            {
                throw new Exception("AvlData Record CRC failure. Received CRC - {0}, calculated CRC - {1}.");
            }
            using (MemoryStream stream = new MemoryStream())
            {
                using (IBitReader suitableBitReader = stream.CreateSuitableBitReader())
                {
                    stream.Write(buffer, 0, num);
                    stream.Position = 0L;
                    long            timestamp = suitableBitReader.ReadUInt32() * 1000L;
                    AvlDataPriority priority  = (AvlDataPriority)suitableBitReader.ReadByte();
                    GpsElement      gps       = DefaultGpsElementEncoding.Instance.Decode(suitableBitReader);
                    IoElement       data      = DefaultIOElementEncoding.Instance.Decode(suitableBitReader);
                    DateTime        dateTime  = DateTimeExt.FromAvl(timestamp);
                    return(new AvlData(priority, dateTime, gps, data));
                }
            }
        }
コード例 #5
0
        public AvlData[] Decode(IBitReader reader)
        {
            if (reader == null)
            {
                throw new ArgumentNullException(nameof(reader));
            }
            long y2Ktime;

            if (ReadBitSequence(reader, out y2Ktime, 35) != 35)
            {
                throw new Exception("Wrong timestamp bits count");
            }
            long timestamp = Y2K2Timestamp(y2Ktime);
            long bits;

            if (reader.ReadBits(out bits, 5) != 5)
            {
                throw new Exception("Wrong element count bits count");
            }
            long           num1           = Math.Min(bits, 24L);
            List <AvlData> avlDataList    = new List <AvlData>();
            long           compressedGws1 = 0;
            long           compressedGws2 = 0;

            for (int index = 0; index < num1; ++index)
            {
                bool bit1;
                if (reader.ReadBit(out bit1) != 1)
                {
                    throw new Exception("Wrong data bits count");
                }
                if (bit1)
                {
                    bool bit2;
                    if (reader.ReadBit(out bit2) != 1)
                    {
                        throw new Exception("Wrong data bits count");
                    }
                    if (bit2)
                    {
                        long num2;
                        if (ReadBitSequence(reader, out num2, 14) != 14)
                        {
                            throw new Exception("Wrong data bits count");
                        }
                        long num3;
                        if (ReadBitSequence(reader, out num3, 14) != 14)
                        {
                            throw new Exception("Wrong data bits count");
                        }
                        compressedGws1 = compressedGws1 - num2 + 8191L;
                        compressedGws2 = compressedGws2 - num3 + 8191L;
                    }
                    else
                    {
                        if (ReadBitSequence(reader, out compressedGws1, 21) != 21)
                        {
                            throw new Exception("Wrong data bits count");
                        }
                        if (ReadBitSequence(reader, out compressedGws2, 20) != 20)
                        {
                            throw new Exception("Wrong data bits count");
                        }
                    }
                    long    num4    = DecompressGws(compressedGws1, -1800000000L, 1800000000L, 3600000000L, 2097151L);
                    long    num5    = DecompressGws(compressedGws2, -900000000L, 900000000L, 1800000000L, 1048575L);
                    short   speed   = reader.ReadByte();
                    AvlData avlData = new AvlData(AvlDataPriority.Low, DateTimeExt.FromAvl(timestamp), new GpsElement((int)num4, (int)num5, 0, speed, 0, 3));
                    avlDataList.Add(avlData);
                }
                timestamp += 3600000L;
            }
            return(avlDataList.ToArray());
        }