java.time.zone.ZoneOffsetTransition.getOffsetAfter()方法的使用及代码示例

x33g5p2x  于2022-02-05 转载在 其他  
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本文整理了Java中java.time.zone.ZoneOffsetTransition.getOffsetAfter()方法的一些代码示例,展示了ZoneOffsetTransition.getOffsetAfter()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台,是从一些精选项目中提取出来的代码,具有较强的参考意义,能在一定程度帮忙到你。ZoneOffsetTransition.getOffsetAfter()方法的具体详情如下:
包路径:java.time.zone.ZoneOffsetTransition
类名称:ZoneOffsetTransition
方法名:getOffsetAfter

ZoneOffsetTransition.getOffsetAfter介绍

[英]Gets the offset after the transition.

This is the offset in use on and after the instant of the transition.
[中]获取转换后的偏移量。
这是过渡瞬间和之后使用的偏移量。

代码示例

代码示例来源:origin: com.github.seratch/java-time-backport

/**
 * Gets the valid offsets during this transition.
 * <p>
 * A gap will return an empty list, while an overlap will return both offsets.
 *
 * @return the list of valid offsets
 */
List<ZoneOffset> getValidOffsets() {
  if (isGap()) {
    return Collections.emptyList();
  }
  return Arrays.asList(getOffsetBefore(), getOffsetAfter());
}

代码示例来源:origin: com.github.seratch/java-time-backport

for (int i = 0; i < standardOffsetTransitionList.size(); i++) {
  this.standardTransitions[i] = standardOffsetTransitionList.get(i).toEpochSecond();
  this.standardOffsets[i + 1] = standardOffsetTransitionList.get(i).getOffsetAfter();
    localTransitionList.add(trans.getDateTimeBefore());
  localTransitionOffsetList.add(trans.getOffsetAfter());

代码示例来源:origin: com.github.seratch/java-time-backport

/**
 * Does this transition represent a gap in the local time-line.
 * <p>
 * Gaps occur where there are local date-times that simply do not not exist.
 * An example would be when the offset changes from {@code +01:00} to {@code +02:00}.
 * This might be described as 'the clocks will move forward one hour tonight at 1am'.
 *
 * @return true if this transition is a gap, false if it is an overlap
 */
public boolean isGap() {
  return getOffsetAfter().getTotalSeconds() > getOffsetBefore().getTotalSeconds();
}

代码示例来源:origin: com.github.seratch/java-time-backport

/**
 * Does this transition represent a gap in the local time-line.
 * <p>
 * Overlaps occur where there are local date-times that exist twice.
 * An example would be when the offset changes from {@code +02:00} to {@code +01:00}.
 * This might be described as 'the clocks will move back one hour tonight at 2am'.
 *
 * @return true if this transition is an overlap, false if it is a gap
 */
public boolean isOverlap() {
  return getOffsetAfter().getTotalSeconds() < getOffsetBefore().getTotalSeconds();
}

代码示例来源:origin: com.github.seratch/java-time-backport

/**
 * Gets the duration of the transition in seconds.
 *
 * @return the duration in seconds
 */
private int getDurationSeconds() {
  return getOffsetAfter().getTotalSeconds() - getOffsetBefore().getTotalSeconds();
}

代码示例来源:origin: com.github.seratch/java-time-backport

@Override
public ZoneOffset getOffset(Instant instant) {
  long epochSec = instant.getEpochSecond();
  // check if using last rules
  if (lastRules.length > 0 &&
      epochSec > savingsInstantTransitions[savingsInstantTransitions.length - 1]) {
    int year = findYear(epochSec, wallOffsets[wallOffsets.length - 1]);
    ZoneOffsetTransition[] transArray = findTransitionArray(year);
    ZoneOffsetTransition trans = null;
    for (int i = 0; i < transArray.length; i++) {
      trans = transArray[i];
      if (epochSec < trans.toEpochSecond()) {
        return trans.getOffsetBefore();
      }
    }
    return trans.getOffsetAfter();
  }
  // using historic rules
  int index  = Arrays.binarySearch(savingsInstantTransitions, epochSec);
  if (index < 0) {
    // switch negative insert position to start of matched range
    index = -index - 2;
  }
  return wallOffsets[index + 1];
}

代码示例来源:origin: com.addthis/cronus

/**
 * If we are in the duplicated time period of an overlap transition,
 * then move forwards around the duplicated time period.
 */
private ZonedDateTime inputDaylightSavingsNext(ZonedDateTime input) {
  ZoneId zoneId = input.getZone();
  ZoneRules zoneRules = zoneId.getRules();
  ZoneOffset zoneOffset = input.getOffset();
  LocalDateTime localDateTime = input.toLocalDateTime();
  ZoneOffsetTransition transition = zoneRules.getTransition(localDateTime);
  if (transition == null) {
    return input;
  } else if (zoneOffset.equals(transition.getOffsetAfter())) {
    return ZonedDateTime.ofInstant(transition.getDateTimeBefore(),
                    transition.getOffsetAfter(), zoneId);
  } else {
    return input;
  }
}

代码示例来源:origin: com.addthis/cronus

/**
 * If there is no daylight savings time transition
 * the ignore any effects of daylight savings and return
 * the local output time.
 *
 * If there is a daylight savings time overlap transition
 * (the clocks are set back) then select the time zone
 * offset from before the transition.
 *
 * If there is a daylight saving time gap transition
 * (the clocks are set forward) then we cannot use the local
 * output time because it is not a legal time value.
 * Move the event to the end of the transition.
 */
private ZonedDateTime outputAdjustDaylightSavings(LocalDateTime output, ZoneId zoneId) {
  if (output == null) {
    return null;
  }
  ZoneRules zoneRules = zoneId.getRules();
  ZoneOffsetTransition transition = zoneRules.getTransition(output);
  if (transition == null) {
    return ZonedDateTime.of(output, zoneId);
  } else if (transition.isOverlap()) {
    return ZonedDateTime.ofInstant(output, transition.getOffsetBefore(), zoneId);
  } else {
    return ZonedDateTime.ofInstant(transition.getDateTimeAfter(), transition.getOffsetAfter(), zoneId);
  }
}

代码示例来源:origin: com.github.seratch/java-time-backport

/**
 * Checks if the specified offset is valid during this transition.
 * <p>
 * This checks to see if the given offset will be valid at some point in the transition.
 * A gap will always return false.
 * An overlap will return true if the offset is either the before or after offset.
 *
 * @param offset  the offset to check, null returns false
 * @return true if the offset is valid during the transition
 */
public boolean isValidOffset(ZoneOffset offset) {
  return isGap() ? false : (getOffsetBefore().equals(offset) || getOffsetAfter().equals(offset));
}

代码示例来源:origin: ical4j/ical4j

private static void addTransitions(ZoneId zoneId, VTimeZone result, int rawTimeZoneOffsetInSeconds) throws ParseException {
  Map<ZoneOffsetKey, Set<ZoneOffsetTransition>> zoneTransitionsByOffsets = new HashMap<ZoneOffsetKey, Set<ZoneOffsetTransition>>();
  for (ZoneOffsetTransition zoneTransitionRule : zoneId.getRules().getTransitions()) {
    ZoneOffsetKey offfsetKey = ZoneOffsetKey.of(zoneTransitionRule.getOffsetBefore(), zoneTransitionRule.getOffsetAfter());
    Set<ZoneOffsetTransition> transitionRulesForOffset = zoneTransitionsByOffsets.computeIfAbsent(offfsetKey, k -> new HashSet<ZoneOffsetTransition>(1));
    transitionRulesForOffset.add(zoneTransitionRule);
  }
  for (Map.Entry<ZoneOffsetKey, Set<ZoneOffsetTransition>> e : zoneTransitionsByOffsets.entrySet()) {
    Observance observance = (e.getKey().offsetAfter.getTotalSeconds() > rawTimeZoneOffsetInSeconds) ? new Daylight() : new Standard();
    LocalDateTime start = Collections.min(e.getValue()).getDateTimeBefore();
    DtStart dtStart = new DtStart(start.format(DateTimeFormatter.ofPattern(DATE_TIME_TPL)));
    TzOffsetFrom offsetFrom = new TzOffsetFrom(e.getKey().offsetBefore);
    TzOffsetTo offsetTo = new TzOffsetTo(e.getKey().offsetAfter);
    observance.getProperties().add(dtStart);
    observance.getProperties().add(offsetFrom);
    observance.getProperties().add(offsetTo);
    for (ZoneOffsetTransition transition : e.getValue()) {
      RDate rDate = new RDate(new ParameterList(), transition.getDateTimeBefore().format(DateTimeFormatter.ofPattern(DATE_TIME_TPL)));
      observance.getProperties().add(rDate);
    }
    result.getObservances().add(observance);
  }
}

代码示例来源:origin: org.mnode.ical4j/ical4j

private static void addTransitions(ZoneId zoneId, VTimeZone result, int rawTimeZoneOffsetInSeconds) throws ParseException {
  Map<ZoneOffsetKey, Set<ZoneOffsetTransition>> zoneTransitionsByOffsets = new HashMap<ZoneOffsetKey, Set<ZoneOffsetTransition>>();
  for (ZoneOffsetTransition zoneTransitionRule : zoneId.getRules().getTransitions()) {
    ZoneOffsetKey offfsetKey = ZoneOffsetKey.of(zoneTransitionRule.getOffsetBefore(), zoneTransitionRule.getOffsetAfter());
    Set<ZoneOffsetTransition> transitionRulesForOffset = zoneTransitionsByOffsets.computeIfAbsent(offfsetKey, k -> new HashSet<ZoneOffsetTransition>(1));
    transitionRulesForOffset.add(zoneTransitionRule);
  }
  for (Map.Entry<ZoneOffsetKey, Set<ZoneOffsetTransition>> e : zoneTransitionsByOffsets.entrySet()) {
    Observance observance = (e.getKey().offsetAfter.getTotalSeconds() > rawTimeZoneOffsetInSeconds) ? new Daylight() : new Standard();
    LocalDateTime start = Collections.min(e.getValue()).getDateTimeBefore();
    DtStart dtStart = new DtStart(start.format(DateTimeFormatter.ofPattern(DATE_TIME_TPL)));
    TzOffsetFrom offsetFrom = new TzOffsetFrom(e.getKey().offsetBefore);
    TzOffsetTo offsetTo = new TzOffsetTo(e.getKey().offsetAfter);
    observance.getProperties().add(dtStart);
    observance.getProperties().add(offsetFrom);
    observance.getProperties().add(offsetTo);
    for (ZoneOffsetTransition transition : e.getValue()) {
      RDate rDate = new RDate(new ParameterList(), transition.getDateTimeBefore().format(DateTimeFormatter.ofPattern(DATE_TIME_TPL)));
      observance.getProperties().add(rDate);
    }
    result.getObservances().add(observance);
  }
}

代码示例来源:origin: com.github.seratch/java-time-backport

ZoneOffsetTransition trans = rules.getTransition(isoLDT);
  localDateTime = localDateTime.plusSeconds(trans.getDuration().getSeconds());
  offset = trans.getOffsetAfter();
} else {
  if (preferredOffset != null && validOffsets.contains(preferredOffset)) {

代码示例来源:origin: com.github.seratch/java-time-backport

ZoneOffsetTransition trans = rules.getTransition(localDateTime);
  localDateTime = localDateTime.plusSeconds(trans.getDuration().getSeconds());
  offset = trans.getOffsetAfter();
} else {
  if (preferredOffset != null && validOffsets.contains(preferredOffset)) {

代码示例来源:origin: com.github.seratch/java-time-backport

@Override
public ChronoZonedDateTime<D> withLaterOffsetAtOverlap() {
  ZoneOffsetTransition trans = getZone().getRules().getTransition(LocalDateTime.from(this));
  if (trans != null) {
    ZoneOffset offset = trans.getOffsetAfter();
    if (offset.equals(getOffset()) == false) {
      return new ChronoZonedDateTimeImpl<D>(dateTime, offset, zone);
    }
  }
  return this;
}

代码示例来源:origin: com.github.seratch/java-time-backport

/**
 * Finds the offset info for a local date-time and transition.
 *
 * @param dt  the date-time, not null
 * @param trans  the transition, not null
 * @return the offset info, not null
 */
private Object findOffsetInfo(LocalDateTime dt, ZoneOffsetTransition trans) {
  LocalDateTime localTransition = trans.getDateTimeBefore();
  if (trans.isGap()) {
    if (dt.isBefore(localTransition)) {
      return trans.getOffsetBefore();
    }
    if (dt.isBefore(trans.getDateTimeAfter())) {
      return trans;
    } else {
      return trans.getOffsetAfter();
    }
  } else {
    if (dt.isBefore(localTransition) == false) {
      return trans.getOffsetAfter();
    }
    if (dt.isBefore(trans.getDateTimeAfter())) {
      return trans.getOffsetBefore();
    } else {
      return trans;
    }
  }
}

代码示例来源:origin: com.github.seratch/java-time-backport

/**
 * Converts this to a transition rule.
 *
 * @param standardOffset  the active standard offset, not null
 * @param savingsBeforeSecs  the active savings before the transition in seconds
 * @return the transition, not null
 */
ZoneOffsetTransitionRule toTransitionRule(ZoneOffset standardOffset, int savingsBeforeSecs) {
  // optimize stored format
  if (dayOfMonthIndicator < 0) {
    if (month != Month.FEBRUARY) {
      dayOfMonthIndicator = month.maxLength() - 6;
    }
  }
  if (timeEndOfDay && dayOfMonthIndicator > 0 && (dayOfMonthIndicator == 28 && month == Month.FEBRUARY) == false) {
    LocalDate date = LocalDate.of(2004, month, dayOfMonthIndicator).plusDays(1);  // leap-year
    month = date.getMonth();
    dayOfMonthIndicator = date.getDayOfMonth();
    if (dayOfWeek != null) {
      dayOfWeek = dayOfWeek.plus(1);
    }
    timeEndOfDay = false;
  }
  // build rule
  ZoneOffsetTransition trans = toTransition(standardOffset, savingsBeforeSecs);
  return new ZoneOffsetTransitionRule(
      month, dayOfMonthIndicator, dayOfWeek, time, timeEndOfDay, timeDefinition,
      standardOffset, trans.getOffsetBefore(), trans.getOffsetAfter());
}

代码示例来源:origin: com.github.seratch/java-time-backport

/**
 * Returns a copy of this date-time changing the zone offset to the
 * later of the two valid offsets at a local time-line overlap.
 * <p>
 * This method only has any effect when the local time-line overlaps, such as
 * at an autumn daylight savings cutover. In this scenario, there are two
 * valid offsets for the local date-time. Calling this method will return
 * a zoned date-time with the later of the two selected.
 * <p>
 * If this method is called when it is not an overlap, {@code this}
 * is returned.
 * <p>
 * This instance is immutable and unaffected by this method call.
 *
 * @return a {@code ZonedDateTime} based on this date-time with the later offset, not null
 */
@Override
public ZonedDateTime withLaterOffsetAtOverlap() {
  ZoneOffsetTransition trans = getZone().getRules().getTransition(toLocalDateTime());
  if (trans != null) {
    ZoneOffset laterOffset = trans.getOffsetAfter();
    if (laterOffset.equals(offset) == false) {
      return new ZonedDateTime(dateTime, laterOffset, zone);
    }
  }
  return this;
}

代码示例来源:origin: infiniteautomation/ma-core-public

/**
   * @param zdt
   * @return
   */
  public Instant getInstant(ZonedDateTime zdt) {
    ZonedDateTime offset = zdt.withHour(hour).withMinute(minute).withSecond(second).withNano((int)(millisecond * 1000000l));
    LocalDateTime ldt = zdt.toLocalDateTime();
    ldt = ldt.withHour(hour).withMinute(minute).withSecond(second).withNano((int)(millisecond * 1000000l));
    
    if(!zdt.getZone().getRules().isValidOffset(ldt, zdt.getOffset())) {
      //Within a gap of DST so OR after the transition
      ZoneOffsetTransition transition = zdt.getZone().getRules().nextTransition(zdt.toInstant());
      if(!ldt.isAfter(transition.getDateTimeAfter())){
        //In a gap so we shift our time forward to the end of the gap.
        offset = transition.getDateTimeAfter().atZone(zdt.getZone());
      }else {
        //After a gap so ensure we use the next zone offset
        offset = ldt.atOffset(transition.getOffsetAfter()).atZoneSimilarLocal(transition.getOffsetAfter());
      }
    }
    
    return offset.toInstant();
  }
}

代码示例来源:origin: net.time4j/time4j-olson

long posixTime = instant.getEpochSecond();
int previousOffset = zot.getOffsetBefore().getTotalSeconds();
int totalOffset = zot.getOffsetAfter().getTotalSeconds();
int dst = Math.toIntExact(zoneRules.getDaylightSavings(instant).getSeconds());
transitions.add(new ZonalTransition(posixTime, previousOffset, totalOffset, dst));

代码示例来源:origin: com.addthis/cronus

if (transition == null) {
  return input;
} else if (transition.isGap() || zoneOffset.equals(transition.getOffsetAfter())) {
  return ZonedDateTime.ofInstant(transition.getDateTimeBefore().minusMinutes(1),
                    transition.getOffsetBefore(), zoneId);

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