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

intgetMinutesBetweenDates(Date firstDate, Date secondDate)
get Minutes Between Dates 
long differenceInMillis = secondDate.getTime() - firstDate.getTime();
return (int) TimeUnit.MILLISECONDS.toMinutes(differenceInMillis);
longgetNormalizedIntervalStartTimestamp(long intervalLengthMillis, long currentTimestamp)
get Normalized Interval Start Timestamp 
long intervalStartTimestamp;
if (intervalLengthMillis >= 3600000) {
    Calendar cal = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
    cal.setTimeInMillis(currentTimestamp);
    cal.set(Calendar.MINUTE, 0);
    cal.set(Calendar.SECOND, 0);
    cal.set(Calendar.MILLISECOND, 0);
    intervalStartTimestamp = cal.getTimeInMillis();
...
longgetNowInSeconds()
Return the current time in seconds. 
return getNowTimeUnit(TimeUnit.SECONDS);
intgetOceanTime(final Date date)
Convert the specified date to an Ocean time. 
return (int) TimeUnit.SECONDS.convert(date.getTime(), TimeUnit.MILLISECONDS) - NO_SECONDS_1970_1980;
StringgetPrettyTime(long duration)
get Pretty Time 
if (duration <= 0)
    throw new IllegalArgumentException();
return String.format("%02d:%02d:%02d.%03d", TimeUnit.MILLISECONDS.toHours(duration),
        TimeUnit.MILLISECONDS.toMinutes(duration)
                - TimeUnit.HOURS.toMinutes(TimeUnit.MILLISECONDS.toHours(duration)),
        TimeUnit.MILLISECONDS.toSeconds(duration)
                - TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.toMinutes(duration)),
        duration - TimeUnit.SECONDS.toMillis(TimeUnit.MILLISECONDS.toSeconds(duration)));
...
StringgetQuantilesString(final Map quantilesValues)
get Quantiles String 
final StringBuilder builder = new StringBuilder();
for (final Entry<Double, Long> entry : quantilesValues.entrySet()) {
    final String quantile = (entry.getKey() * 100) + " % : "
            + TimeUnit.NANOSECONDS.toNanos(entry.getValue()) + " ns";
    builder.append(quantile);
    builder.append("\n");
return builder.toString();
...
DategetRandomDate()
get Random Date 
long time = (long) (System.currentTimeMillis() - getRandomDouble() * DAYS.toMillis(3650));
time = time / 1000 * 1000;
return new Date(time);
StringgetReadableElapsedIntervalInSeconds(final long elapsedTimInMillis)
get Readable Elapsed Interval In Seconds 
final long hours = TimeUnit.MILLISECONDS.toHours(elapsedTimInMillis);
final long minutes = TimeUnit.MILLISECONDS.toMinutes(elapsedTimInMillis - TimeUnit.HOURS.toMillis(hours));
final long seconds = TimeUnit.MILLISECONDS
        .toSeconds(elapsedTimInMillis - TimeUnit.HOURS.toMillis(hours) - TimeUnit.MINUTES.toMillis(minutes))
        + (hours * 60 * 60) + (minutes * 60);
final long milliSeconds = TimeUnit.MILLISECONDS.toMillis(elapsedTimInMillis - TimeUnit.HOURS.toMillis(hours)
        - TimeUnit.MINUTES.toMillis(minutes) - TimeUnit.SECONDS.toMillis(TimeUnit.MILLISECONDS.toSeconds(
                elapsedTimInMillis - TimeUnit.HOURS.toMillis(hours) - TimeUnit.MINUTES.toMillis(minutes))));
...
StringgetRemainingTimeString(int completedCount, int totalCount, long elapsed)
get Remaining Time String 
float conceptCountFloat = totalCount;
float completedFloat = completedCount;
float percentComplete = completedFloat / conceptCountFloat;
float estTotalTime = elapsed / percentComplete;
long remaining = (long) (estTotalTime - elapsed);
String remainingStr = getElapsedTimeString(remaining);
return remainingStr;
doublegetSeconds(long time)
Return the seconds since the provided time. 
return (double) TimeUnit.MILLISECONDS.toSeconds(time - System.currentTimeMillis());