Java Utililty Methods Duration Calculate

List of utility methods to do Duration Calculate

  1. HOME
  2. Java
  3. D
  4. Duration Calculate

Description

The list of methods to do Duration Calculate are organized into topic(s).

Method

DurationadjustServerTimeout(Duration clientTimeout)
adjust Server Timeout 
return clientTimeout.minusMillis(100);
booleanawaitTermination(ExecutorService service, Logger logger, Duration timeout, String technique)
Await termination of the given ExecutorService . 
try {
    service.awaitTermination(timeout.toMillis(), TimeUnit.MILLISECONDS);
    return true;
} catch (InterruptedException e) {
    logger.severe(technique + " shutdown of " + service + " did not complete within " + timeout);
    return false;
DurationcalculateDuration(Duration minimum, Duration maximum, Long iteration)
calculate Duration 
Duration candidate = minimum.multipliedBy((long) Math.pow(2, iteration));
return min(candidate, maximum);
longdaysRoundingUp(Duration duration)
days Rounding Up 
final long days = duration.toDays();
return duration.equals(Duration.ofDays(days)) ? days : days + 1;
CompletableFuturedelayedFuture(Duration delay, ScheduledExecutorService executorService)
Creates a CompletableFuture that will do nothing and complete after a specified delay, without using a thread during the delay. 
CompletableFuture<Void> result = new CompletableFuture<>();
if (delay.toMillis() == 0) {
    result.complete(null);
} else {
    ScheduledFuture<Boolean> sf = executorService.schedule(() -> result.complete(null), delay.toMillis(),
            TimeUnit.MILLISECONDS);
    result.whenComplete((r, ex) -> sf.cancel(true));
return result;
longdurationFromNow(TemporalAmount duration)
duration From Now 
return LocalDateTime.now(ZoneId.of("UTC")).plus(duration).toEpochSecond(ZoneOffset.UTC);
CompletableFuturefailAfter(Duration duration)
Generates a completable future which times out. 
final CompletableFuture<T> promise = new CompletableFuture<>();
scheduler.schedule(() -> {
    final TimeoutException ex = new TimeoutException("Timeout after " + duration.toMillis() + " ms");
    return promise.completeExceptionally(ex);
}, duration.toMillis(), TimeUnit.MILLISECONDS);
return promise;
CompletableFuturefutureWithTimeout(Duration timeout, ScheduledExecutorService executorService)
Creates a new CompletableFuture that will timeout after the given amount of time. 
return futureWithTimeout(timeout, null, executorService);
StringgetDurationAsISO8601(Duration duration)
Returns a ISO 8601 HH:mm:ss.SSS formated string of a Duration object 
SimpleDateFormat format = new SimpleDateFormat("HH:mm:ss.SSS", Locale.getDefault());
long millis = duration.toMillis();
return format.format(new Date(millis - TimeZone.getDefault().getRawOffset()));
DurationgetDurationByTimeValues(final long hours, final long minutes, final long seconds)
converts values of time constants to a Duration object.. 
return Duration.ofHours(hours).plusMinutes(minutes).plusSeconds(seconds);