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;
}
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);
}