public static long parseLong()

in java/connectors/kraken-spot/src/main/java/com/epam/deltix/data/connectors/kraken/Util.java [47:105]
46 lines of code
13 McCabe index (conditional complexity)

    public static long parseLong(final CharSequence sc, final int startIncl, final int endExcl) {
        if (startIncl == endExcl) {
            throw new NumberFormatException("Empty string");
        }

        int     pos      = startIncl;
        long    value    = 0;
        char    ch       = sc.charAt(pos);

        boolean negative = ch == '-';

        if ((ch == '+') || negative) {
            pos++;

            if (pos == endExcl) {
                throw new NumberFormatException(new StringBuilder().append(sc, startIncl, endExcl).toString());
            }

            ch = sc.charAt(pos);
        }

        for (;;) {
            if (ch != ',') {
                int digit = ch - '0';

                if ((digit < 0) || (digit > 9)) {
                    throw new NumberFormatException("Illegal digit at position " + (pos + 1) + " in: "
                        + new StringBuilder().append(sc,
                        startIncl,
                        endExcl).toString());
                }

                if (value < -LONG_MAX_VALUE_DIV_10) {
                    throw new NumberFormatException("Long integer (8-byte) too large: " + sc);
                }

                value = value * 10 - digit;

                if (value > 0)    // Overflow
                {
                    throw new NumberFormatException("Long integer (8-byte) too large: " + sc);
                }
            }

            pos++;

            if (pos == endExcl) {
                if (negative) {
                    return (value);
                } else if (value == Long.MIN_VALUE) {
                    throw new NumberFormatException("Long integer (8-byte) too large: " + sc);
                } else {
                    return (-value);
                }
            }

            ch = sc.charAt(pos);
        }
    }