public static double getPreciseTimeDuration()

in src/main/java/org/apache/nifi/time/DurationFormat.java [86:118]

• 25 lines of code
• 4 McCabe index (conditional complexity)

    public static double getPreciseTimeDuration(final String value, final TimeUnit desiredUnit) {
        final Matcher matcher = TIME_DURATION_PATTERN.matcher(value.toLowerCase());
        if (!matcher.matches()) {
            throw new IllegalArgumentException("Value '" + value + "' is not a valid time duration");
        }

        final String duration = matcher.group(1);
        final String units = matcher.group(2);

        double durationVal = Double.parseDouble(duration);
        TimeUnit specifiedTimeUnit;

        // The TimeUnit enum doesn't have a value for WEEKS, so handle this case independently
        if (isWeek(units)) {
            specifiedTimeUnit = TimeUnit.DAYS;
            durationVal *= 7;
        } else {
            specifiedTimeUnit = determineTimeUnit(units);
        }

        // The units are now guaranteed to be in DAYS or smaller
        long durationLong;
        if (durationVal == Math.rint(durationVal)) {
            durationLong = Math.round(durationVal);
        } else {
            // Try reducing the size of the units to make the input a long
            List<?> wholeResults = makeWholeNumberTime(durationVal, specifiedTimeUnit);
            durationLong = (long) wholeResults.get(0);
            specifiedTimeUnit = (TimeUnit) wholeResults.get(1);
        }

        return desiredUnit.convert(durationLong, specifiedTimeUnit);
    }