Exemple #1
0
        public object ConvertFrom(byte[] decimalBuf)
        {
            var bigintBytes = new byte[decimalBuf.Length - 4];

            Array.Copy(decimalBuf, 4, bigintBytes, 0, bigintBytes.Length);

            var scale = (byte)TypeCodec.BytesToInt32(decimalBuf, 0);

            Array.Reverse(bigintBytes);
            var bigInteger = new BigInteger(bigintBytes);
            var isNegative = bigInteger < 0;

            bigInteger  = BigInteger.Abs(bigInteger);
            bigintBytes = bigInteger.ToByteArray();
            if (bigintBytes.Length > 13 || (bigintBytes.Length == 13 && bigintBytes[12] != 0))
            {
                throw new ArgumentOutOfRangeException(
                          "decimalBuf",
                          "this java.math.BigDecimal is too big to fit into System.Decimal. Think about using other TypeAdapter for java.math.BigDecimal (e.g. J#, IKVM,...)");
            }

            var intArray = new int[3];

            Buffer.BlockCopy(bigintBytes, 0, intArray, 0, Math.Min(12, bigintBytes.Length));

            return(new decimal(intArray[0], intArray[1], intArray[2], isNegative, scale));
        }