Java Utililty Methods TimeUnit Usage

List of utility methods to do TimeUnit Usage

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Description

The list of methods to do TimeUnit Usage are organized into topic(s).

Method

booleanisTimedOut(long start, long timeout)
Check if the operation is timed out. 
return (getNowInSeconds() - start) > timeout;
booleanisValidTTL(final Integer ttlDurationInSeconds)
is Valid TTL 
if (ttlDurationInSeconds == null) {
    return false;
return isValidTTL(TimeUnit.SECONDS, ttlDurationInSeconds);
longjulianDayToMillis(int julianDay)
julian Day To Millis 
return (julianDay - JULIAN_EPOCH_OFFSET_DAYS) * MILLIS_IN_DAY;
voidlogDuration(org.slf4j.Logger log, String prefix, long startTimeNanos)
Logs the amount of time that a particular activity took, based on the given start time 
long durationNanos = System.nanoTime() - startTimeNanos;
long durationMillis = TimeUnit.NANOSECONDS.toMillis(durationNanos);
long durationSeconds = TimeUnit.NANOSECONDS.toSeconds(durationNanos);
double elapsedTime = (double) durationSeconds + (double) durationMillis / 1000.0;
elapsedTime = Math.round(elapsedTime * 1000.0) / 1000.0;
log.info(prefix + elapsedTime + " seconds");
longlogWatchStop(long start, String... params)
log Watch Stop 
long stop = System.nanoTime();
String methodName = Thread.currentThread().getStackTrace()[2].getMethodName();
String className = Thread.currentThread().getStackTrace()[2].getClassName();
Logger logger = Logger.getLogger(className);
long convert = TimeUnit.MILLISECONDS.convert(stop - start, TimeUnit.NANOSECONDS);
logger.log(Level.INFO, "Class: " + className + " :: " + Arrays.toString(params) + " :: The method: "
        + methodName + " :: Time spend : " + convert + "ms");
return convert;
...
SetmergeResults(List>> futures)
Since keys can appear more than one time e.g. 
Set<K> allKeys = new HashSet<K>();
while (true) {
    Iterator<Future<Set<K>>> futureIter = futures.iterator();
    while (futureIter.hasNext()) {
        Future<Set<K>> future = futureIter.next();
        try {
            Set<K> keys = future.get(100, TimeUnit.MILLISECONDS);
            futureIter.remove();
...
longmillisBetweenNanoTimes(long startNanos, long endNanos)
millis Between Nano Times 
long elapsedNanos = endNanos - startNanos;
return MILLISECONDS.convert(elapsedNanos, NANOSECONDS);
StringmillisecondsToHumanReadable(long duration)
converts time (in milliseconds) to human-readable format "mm:ss" 
String res;
long days = TimeUnit.MILLISECONDS.toDays(duration);
long hours = TimeUnit.MILLISECONDS.toHours(duration)
        - TimeUnit.DAYS.toHours(TimeUnit.MILLISECONDS.toDays(duration));
long minutes = TimeUnit.MILLISECONDS.toMinutes(duration)
        - TimeUnit.HOURS.toMinutes(TimeUnit.MILLISECONDS.toHours(duration));
long seconds = TimeUnit.MILLISECONDS.toSeconds(duration)
        - TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.toMinutes(duration));
...
longmillisElapsedSince(long startNanoTime)
Returns the number of milliseconds since time given by startNanoTime, which must have been previously returned from a call to System#nanoTime() . 
return TimeUnit.NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
intmillisToDays(long millisLocal)
Return number of days since the unix epoch. 
long millisUtc = millisLocal + localTimeZone.getOffset(millisLocal);
int days;
if (millisUtc >= 0L) {
    days = (int) (millisUtc / MILLIS_PER_DAY);
} else {
    days = (int) ((millisUtc - 86399999 ) / MILLIS_PER_DAY);
return days;
...