Exemplo n.º 1
0
  public static long fixFloatValueOf(final byte[] s, int length) {
    int start = 0;
    boolean negative = false;
    int decimal = -1;
    long value;

    final byte c = s[start];
    if (c == '-') {
      ++start;
      --length;
      negative = true;
    } /*
       * else if (c == '+') { ++start; --length; }
       */
    if (length == 0) throw new NumberFormatException("to short number");

    for (decimal = length - 1; decimal >= 0; decimal--) if (s[decimal] == (byte) '.') break;

    final int decimals = start + length - 1 - decimal;

    if (decimal > -1) {
      value = Utils.longValueOf(s, start, decimal - start) * FIX_FLOAT_NUMBER_OF_DECIMALS;
      final int dec =
          FIX_FLOAT_NUMBER_OF_DECIMALS_DIGITS < decimals
              ? FIX_FLOAT_NUMBER_OF_DECIMALS_DIGITS
              : decimals;
      value +=
          Utils.intValueOf(s, decimal + 1 < length ? decimal + 1 : length - 1, dec)
              * Utils.multiplier(FIX_FLOAT_NUMBER_OF_DECIMALS_DIGITS - dec);
    } else value = Utils.longValueOf(s, start, decimals) * FIX_FLOAT_NUMBER_OF_DECIMALS;

    if (negative) return -1 * value;
    return value;
  }
Exemplo n.º 2
0
  public static int getTagIntValue(final byte[] msgType, final int tag, final ByteBuffer buf)
      throws FixSessionException {
    byte c = SOH;
    int start = 0;
    final int end = FIX_MAX_DIGITS;

    while ((c = buf.get()) != SOH) {

      digitsBuf[start++] = c;

      if (start == end) {
        throw new FixSessionException(
            SessionRejectReason.VALUE_IS_INCORRECT_OUT_OF_RANGE_FOR_THIS_TAG,
            ("Value length exceeds maximum number of digits " + FIX_MAX_DIGITS).getBytes(),
            tag,
            msgType);
      }
    }

    if (start == 0)
      throw new FixSessionException(
          SessionRejectReason.TAG_SPECIFIED_WITHOUT_A_VALUE,
          "Tag specified without a value".getBytes(),
          tag,
          msgType);

    if (c != SOH)
      throw new FixSessionException(
          SessionRejectReason.TAG_SPECIFIED_WITHOUT_A_VALUE,
          "Message not terminated by SOH".getBytes(),
          tag,
          msgType);

    return Utils.intValueOf(digitsBuf, 0, start);
  }