Пример #1
0
        public void Load(string filePath)
        {
            var timer = Stopwatch.StartNew();

            timer.Start();

            byte[] binary = _fileReadService.ReadAllBytes(filePath);

            var header = _converterService.ConvertToHeader(binary, 0);

            if ((int)header.OffsetRanges > binary.Length)
            {
                throw new IndexOutOfRangeException("Длинна бинарника меньше offset для заголовка");
            }
            var ipRanges = new uint[header.Records, 3];

            Buffer.BlockCopy(binary, (int)header.OffsetRanges, ipRanges, 0, header.Records * Constants.IpRangeSize);

            if ((int)header.OffsetLocations > binary.Length)
            {
                throw new IndexOutOfRangeException("Длинна бинарника меньше offset для городов");
            }
            var cities = new byte[header.Records * Constants.CitySize];

            Buffer.BlockCopy(binary, (int)header.OffsetLocations, cities, 0, header.Records * Constants.CitySize);

            if ((int)header.OffsetCities > binary.Length)
            {
                throw new IndexOutOfRangeException("Длинна бинарника меньше offset для городов");
            }
            var locations = new int[header.Records];

            Buffer.BlockCopy(binary, (int)header.OffsetCities, locations, 0, header.Records * Constants.IndexSize);

            _db = new BinaryGeoBase(header, ipRanges, cities, locations);

            timer.Stop();

            _db.LoadStatistic = new BaseLoadStatistic
            {
                LoadDbFromDiskTime = timer.Elapsed
            };
        }