下面列出了java.time.zone.ZoneRules#getValidOffsets ( ) 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。
private ZoneOffsetTransition checkOffset(ZoneRules rules, LocalDateTime dateTime, ZoneOffset offset, int type) {
List<ZoneOffset> validOffsets = rules.getValidOffsets(dateTime);
assertEquals(validOffsets.size(), type);
assertEquals(rules.getOffset(dateTime), offset);
if (type == 1) {
assertEquals(validOffsets.get(0), offset);
return null;
} else {
ZoneOffsetTransition zot = rules.getTransition(dateTime);
assertNotNull(zot);
assertEquals(zot.isOverlap(), type == 2);
assertEquals(zot.isGap(), type == 0);
assertEquals(zot.isValidOffset(offset), type == 2);
return zot;
}
}
/**
* Obtains an instance of {@code ZonedDateTime} from a local date-time
* using the preferred offset if possible.
* <p>
* The local date-time is resolved to a single instant on the time-line.
* This is achieved by finding a valid offset from UTC/Greenwich for the local
* date-time as defined by the {@link ZoneRules rules} of the zone ID.
*<p>
* In most cases, there is only one valid offset for a local date-time.
* In the case of an overlap, where clocks are set back, there are two valid offsets.
* If the preferred offset is one of the valid offsets then it is used.
* Otherwise the earlier valid offset is used, typically corresponding to "summer".
* <p>
* In the case of a gap, where clocks jump forward, there is no valid offset.
* Instead, the local date-time is adjusted to be later by the length of the gap.
* For a typical one hour daylight savings change, the local date-time will be
* moved one hour later into the offset typically corresponding to "summer".
*
* @param localDateTime the local date-time, not null
* @param zone the time-zone, not null
* @param preferredOffset the zone offset, null if no preference
* @return the zoned date-time, not null
*/
public static ZonedDateTime ofLocal(LocalDateTime localDateTime, ZoneId zone, ZoneOffset preferredOffset) {
Objects.requireNonNull(localDateTime, "localDateTime");
Objects.requireNonNull(zone, "zone");
if (zone instanceof ZoneOffset) {
return new ZonedDateTime(localDateTime, (ZoneOffset) zone, zone);
}
ZoneRules rules = zone.getRules();
List<ZoneOffset> validOffsets = rules.getValidOffsets(localDateTime);
ZoneOffset offset;
if (validOffsets.size() == 1) {
offset = validOffsets.get(0);
} else if (validOffsets.size() == 0) {
ZoneOffsetTransition trans = rules.getTransition(localDateTime);
localDateTime = localDateTime.plusSeconds(trans.getDuration().getSeconds());
offset = trans.getOffsetAfter();
} else {
if (preferredOffset != null && validOffsets.contains(preferredOffset)) {
offset = preferredOffset;
} else {
offset = Objects.requireNonNull(validOffsets.get(0), "offset"); // protect against bad ZoneRules
}
}
return new ZonedDateTime(localDateTime, offset, zone);
}
/**
* Obtains an instance of {@code ZonedDateTime} from a local date-time
* using the preferred offset if possible.
* <p>
* The local date-time is resolved to a single instant on the time-line.
* This is achieved by finding a valid offset from UTC/Greenwich for the local
* date-time as defined by the {@link ZoneRules rules} of the zone ID.
*<p>
* In most cases, there is only one valid offset for a local date-time.
* In the case of an overlap, where clocks are set back, there are two valid offsets.
* If the preferred offset is one of the valid offsets then it is used.
* Otherwise the earlier valid offset is used, typically corresponding to "summer".
* <p>
* In the case of a gap, where clocks jump forward, there is no valid offset.
* Instead, the local date-time is adjusted to be later by the length of the gap.
* For a typical one hour daylight savings change, the local date-time will be
* moved one hour later into the offset typically corresponding to "summer".
*
* @param localDateTime the local date-time, not null
* @param zone the time-zone, not null
* @param preferredOffset the zone offset, null if no preference
* @return the zoned date-time, not null
*/
public static ZonedDateTime ofLocal(LocalDateTime localDateTime, ZoneId zone, ZoneOffset preferredOffset) {
Objects.requireNonNull(localDateTime, "localDateTime");
Objects.requireNonNull(zone, "zone");
if (zone instanceof ZoneOffset) {
return new ZonedDateTime(localDateTime, (ZoneOffset) zone, zone);
}
ZoneRules rules = zone.getRules();
List<ZoneOffset> validOffsets = rules.getValidOffsets(localDateTime);
ZoneOffset offset;
if (validOffsets.size() == 1) {
offset = validOffsets.get(0);
} else if (validOffsets.size() == 0) {
ZoneOffsetTransition trans = rules.getTransition(localDateTime);
localDateTime = localDateTime.plusSeconds(trans.getDuration().getSeconds());
offset = trans.getOffsetAfter();
} else {
if (preferredOffset != null && validOffsets.contains(preferredOffset)) {
offset = preferredOffset;
} else {
offset = Objects.requireNonNull(validOffsets.get(0), "offset"); // protect against bad ZoneRules
}
}
return new ZonedDateTime(localDateTime, offset, zone);
}
/**
* Obtains an instance of {@code ZonedDateTime} from a local date-time
* using the preferred offset if possible.
* <p>
* The local date-time is resolved to a single instant on the time-line.
* This is achieved by finding a valid offset from UTC/Greenwich for the local
* date-time as defined by the {@link ZoneRules rules} of the zone ID.
*<p>
* In most cases, there is only one valid offset for a local date-time.
* In the case of an overlap, where clocks are set back, there are two valid offsets.
* If the preferred offset is one of the valid offsets then it is used.
* Otherwise the earlier valid offset is used, typically corresponding to "summer".
* <p>
* In the case of a gap, where clocks jump forward, there is no valid offset.
* Instead, the local date-time is adjusted to be later by the length of the gap.
* For a typical one hour daylight savings change, the local date-time will be
* moved one hour later into the offset typically corresponding to "summer".
*
* @param localDateTime the local date-time, not null
* @param zone the time-zone, not null
* @param preferredOffset the zone offset, null if no preference
* @return the zoned date-time, not null
*/
public static ZonedDateTime ofLocal(LocalDateTime localDateTime, ZoneId zone, ZoneOffset preferredOffset) {
Objects.requireNonNull(localDateTime, "localDateTime");
Objects.requireNonNull(zone, "zone");
if (zone instanceof ZoneOffset) {
return new ZonedDateTime(localDateTime, (ZoneOffset) zone, zone);
}
ZoneRules rules = zone.getRules();
List<ZoneOffset> validOffsets = rules.getValidOffsets(localDateTime);
ZoneOffset offset;
if (validOffsets.size() == 1) {
offset = validOffsets.get(0);
} else if (validOffsets.size() == 0) {
ZoneOffsetTransition trans = rules.getTransition(localDateTime);
localDateTime = localDateTime.plusSeconds(trans.getDuration().getSeconds());
offset = trans.getOffsetAfter();
} else {
if (preferredOffset != null && validOffsets.contains(preferredOffset)) {
offset = preferredOffset;
} else {
offset = Objects.requireNonNull(validOffsets.get(0), "offset"); // protect against bad ZoneRules
}
}
return new ZonedDateTime(localDateTime, offset, zone);
}
private ZoneOffsetTransition checkOffset(ZoneRules rules, LocalDateTime dateTime, ZoneOffset offset, int type) {
List<ZoneOffset> validOffsets = rules.getValidOffsets(dateTime);
assertEquals(validOffsets.size(), type);
assertEquals(rules.getOffset(dateTime), offset);
if (type == 1) {
assertEquals(validOffsets.get(0), offset);
return null;
} else {
ZoneOffsetTransition zot = rules.getTransition(dateTime);
assertNotNull(zot);
assertEquals(zot.isOverlap(), type == 2);
assertEquals(zot.isGap(), type == 0);
assertEquals(zot.isValidOffset(offset), type == 2);
return zot;
}
}
private ZoneOffsetTransition checkOffset(ZoneRules rules, LocalDateTime dateTime, ZoneOffset offset, int type) {
List<ZoneOffset> validOffsets = rules.getValidOffsets(dateTime);
assertEquals(validOffsets.size(), type);
assertEquals(rules.getOffset(dateTime), offset);
if (type == 1) {
assertEquals(validOffsets.get(0), offset);
return null;
} else {
ZoneOffsetTransition zot = rules.getTransition(dateTime);
assertNotNull(zot);
assertEquals(zot.isOverlap(), type == 2);
assertEquals(zot.isGap(), type == 0);
assertEquals(zot.isValidOffset(offset), type == 2);
return zot;
}
}
private ZoneOffsetTransition checkOffset(ZoneRules rules, LocalDateTime dateTime, ZoneOffset offset, int type) {
List<ZoneOffset> validOffsets = rules.getValidOffsets(dateTime);
assertEquals(validOffsets.size(), type);
assertEquals(rules.getOffset(dateTime), offset);
if (type == 1) {
assertEquals(validOffsets.get(0), offset);
return null;
} else {
ZoneOffsetTransition zot = rules.getTransition(dateTime);
assertNotNull(zot);
assertEquals(zot.isOverlap(), type == 2);
assertEquals(zot.isGap(), type == 0);
assertEquals(zot.isValidOffset(offset), type == 2);
return zot;
}
}
/**
* Obtains an instance of {@code ZonedDateTime} from a local date-time
* using the preferred offset if possible.
* <p>
* The local date-time is resolved to a single instant on the time-line.
* This is achieved by finding a valid offset from UTC/Greenwich for the local
* date-time as defined by the {@link ZoneRules rules} of the zone ID.
*<p>
* In most cases, there is only one valid offset for a local date-time.
* In the case of an overlap, where clocks are set back, there are two valid offsets.
* If the preferred offset is one of the valid offsets then it is used.
* Otherwise the earlier valid offset is used, typically corresponding to "summer".
* <p>
* In the case of a gap, where clocks jump forward, there is no valid offset.
* Instead, the local date-time is adjusted to be later by the length of the gap.
* For a typical one hour daylight savings change, the local date-time will be
* moved one hour later into the offset typically corresponding to "summer".
*
* @param localDateTime the local date-time, not null
* @param zone the time-zone, not null
* @param preferredOffset the zone offset, null if no preference
* @return the zoned date-time, not null
*/
public static ZonedDateTime ofLocal(LocalDateTime localDateTime, ZoneId zone, ZoneOffset preferredOffset) {
Objects.requireNonNull(localDateTime, "localDateTime");
Objects.requireNonNull(zone, "zone");
if (zone instanceof ZoneOffset) {
return new ZonedDateTime(localDateTime, (ZoneOffset) zone, zone);
}
ZoneRules rules = zone.getRules();
List<ZoneOffset> validOffsets = rules.getValidOffsets(localDateTime);
ZoneOffset offset;
if (validOffsets.size() == 1) {
offset = validOffsets.get(0);
} else if (validOffsets.size() == 0) {
ZoneOffsetTransition trans = rules.getTransition(localDateTime);
localDateTime = localDateTime.plusSeconds(trans.getDuration().getSeconds());
offset = trans.getOffsetAfter();
} else {
if (preferredOffset != null && validOffsets.contains(preferredOffset)) {
offset = preferredOffset;
} else {
offset = Objects.requireNonNull(validOffsets.get(0), "offset"); // protect against bad ZoneRules
}
}
return new ZonedDateTime(localDateTime, offset, zone);
}
/**
* Obtains an instance of {@code ZonedDateTime} from a local date-time
* using the preferred offset if possible.
* <p>
* The local date-time is resolved to a single instant on the time-line.
* This is achieved by finding a valid offset from UTC/Greenwich for the local
* date-time as defined by the {@link ZoneRules rules} of the zone ID.
*<p>
* In most cases, there is only one valid offset for a local date-time.
* In the case of an overlap, where clocks are set back, there are two valid offsets.
* If the preferred offset is one of the valid offsets then it is used.
* Otherwise the earlier valid offset is used, typically corresponding to "summer".
* <p>
* In the case of a gap, where clocks jump forward, there is no valid offset.
* Instead, the local date-time is adjusted to be later by the length of the gap.
* For a typical one hour daylight savings change, the local date-time will be
* moved one hour later into the offset typically corresponding to "summer".
*
* @param localDateTime the local date-time, not null
* @param zone the time-zone, not null
* @param preferredOffset the zone offset, null if no preference
* @return the zoned date-time, not null
*/
public static ZonedDateTime ofLocal(LocalDateTime localDateTime, ZoneId zone, ZoneOffset preferredOffset) {
Objects.requireNonNull(localDateTime, "localDateTime");
Objects.requireNonNull(zone, "zone");
if (zone instanceof ZoneOffset) {
return new ZonedDateTime(localDateTime, (ZoneOffset) zone, zone);
}
ZoneRules rules = zone.getRules();
List<ZoneOffset> validOffsets = rules.getValidOffsets(localDateTime);
ZoneOffset offset;
if (validOffsets.size() == 1) {
offset = validOffsets.get(0);
} else if (validOffsets.size() == 0) {
ZoneOffsetTransition trans = rules.getTransition(localDateTime);
localDateTime = localDateTime.plusSeconds(trans.getDuration().getSeconds());
offset = trans.getOffsetAfter();
} else {
if (preferredOffset != null && validOffsets.contains(preferredOffset)) {
offset = preferredOffset;
} else {
offset = Objects.requireNonNull(validOffsets.get(0), "offset"); // protect against bad ZoneRules
}
}
return new ZonedDateTime(localDateTime, offset, zone);
}
/**
* Obtains an instance of {@code ZonedDateTime} from a local date-time
* using the preferred offset if possible.
* <p>
* The local date-time is resolved to a single instant on the time-line.
* This is achieved by finding a valid offset from UTC/Greenwich for the local
* date-time as defined by the {@link ZoneRules rules} of the zone ID.
*<p>
* In most cases, there is only one valid offset for a local date-time.
* In the case of an overlap, where clocks are set back, there are two valid offsets.
* If the preferred offset is one of the valid offsets then it is used.
* Otherwise the earlier valid offset is used, typically corresponding to "summer".
* <p>
* In the case of a gap, where clocks jump forward, there is no valid offset.
* Instead, the local date-time is adjusted to be later by the length of the gap.
* For a typical one hour daylight savings change, the local date-time will be
* moved one hour later into the offset typically corresponding to "summer".
*
* @param localDateTime the local date-time, not null
* @param zone the time-zone, not null
* @param preferredOffset the zone offset, null if no preference
* @return the zoned date-time, not null
*/
public static ZonedDateTime ofLocal(LocalDateTime localDateTime, ZoneId zone, ZoneOffset preferredOffset) {
Objects.requireNonNull(localDateTime, "localDateTime");
Objects.requireNonNull(zone, "zone");
if (zone instanceof ZoneOffset) {
return new ZonedDateTime(localDateTime, (ZoneOffset) zone, zone);
}
ZoneRules rules = zone.getRules();
List<ZoneOffset> validOffsets = rules.getValidOffsets(localDateTime);
ZoneOffset offset;
if (validOffsets.size() == 1) {
offset = validOffsets.get(0);
} else if (validOffsets.size() == 0) {
ZoneOffsetTransition trans = rules.getTransition(localDateTime);
localDateTime = localDateTime.plusSeconds(trans.getDuration().getSeconds());
offset = trans.getOffsetAfter();
} else {
if (preferredOffset != null && validOffsets.contains(preferredOffset)) {
offset = preferredOffset;
} else {
offset = Objects.requireNonNull(validOffsets.get(0), "offset"); // protect against bad ZoneRules
}
}
return new ZonedDateTime(localDateTime, offset, zone);
}
private ZoneOffsetTransition checkOffset(ZoneRules rules, LocalDateTime dateTime, ZoneOffset offset, int type) {
List<ZoneOffset> validOffsets = rules.getValidOffsets(dateTime);
assertEquals(validOffsets.size(), type);
assertEquals(rules.getOffset(dateTime), offset);
if (type == 1) {
assertEquals(validOffsets.get(0), offset);
return null;
} else {
ZoneOffsetTransition zot = rules.getTransition(dateTime);
assertNotNull(zot);
assertEquals(zot.isOverlap(), type == 2);
assertEquals(zot.isGap(), type == 0);
assertEquals(zot.isValidOffset(offset), type == 2);
return zot;
}
}
/**
* Obtains an instance of {@code ZonedDateTime} from a local date-time
* using the preferred offset if possible.
* <p>
* The local date-time is resolved to a single instant on the time-line.
* This is achieved by finding a valid offset from UTC/Greenwich for the local
* date-time as defined by the {@link ZoneRules rules} of the zone ID.
*<p>
* In most cases, there is only one valid offset for a local date-time.
* In the case of an overlap, where clocks are set back, there are two valid offsets.
* If the preferred offset is one of the valid offsets then it is used.
* Otherwise the earlier valid offset is used, typically corresponding to "summer".
* <p>
* In the case of a gap, where clocks jump forward, there is no valid offset.
* Instead, the local date-time is adjusted to be later by the length of the gap.
* For a typical one hour daylight savings change, the local date-time will be
* moved one hour later into the offset typically corresponding to "summer".
*
* @param localDateTime the local date-time, not null
* @param zone the time-zone, not null
* @param preferredOffset the zone offset, null if no preference
* @return the zoned date-time, not null
*/
public static ZonedDateTime ofLocal(LocalDateTime localDateTime, ZoneId zone, ZoneOffset preferredOffset) {
Objects.requireNonNull(localDateTime, "localDateTime");
Objects.requireNonNull(zone, "zone");
if (zone instanceof ZoneOffset) {
return new ZonedDateTime(localDateTime, (ZoneOffset) zone, zone);
}
ZoneRules rules = zone.getRules();
List<ZoneOffset> validOffsets = rules.getValidOffsets(localDateTime);
ZoneOffset offset;
if (validOffsets.size() == 1) {
offset = validOffsets.get(0);
} else if (validOffsets.size() == 0) {
ZoneOffsetTransition trans = rules.getTransition(localDateTime);
localDateTime = localDateTime.plusSeconds(trans.getDuration().getSeconds());
offset = trans.getOffsetAfter();
} else {
if (preferredOffset != null && validOffsets.contains(preferredOffset)) {
offset = preferredOffset;
} else {
offset = Objects.requireNonNull(validOffsets.get(0), "offset"); // protect against bad ZoneRules
}
}
return new ZonedDateTime(localDateTime, offset, zone);
}
/**
* Obtains an instance of {@code ZonedDateTime} from a local date-time
* using the preferred offset if possible.
* <p>
* The local date-time is resolved to a single instant on the time-line.
* This is achieved by finding a valid offset from UTC/Greenwich for the local
* date-time as defined by the {@link ZoneRules rules} of the zone ID.
*<p>
* In most cases, there is only one valid offset for a local date-time.
* In the case of an overlap, where clocks are set back, there are two valid offsets.
* If the preferred offset is one of the valid offsets then it is used.
* Otherwise the earlier valid offset is used, typically corresponding to "summer".
* <p>
* In the case of a gap, where clocks jump forward, there is no valid offset.
* Instead, the local date-time is adjusted to be later by the length of the gap.
* For a typical one hour daylight savings change, the local date-time will be
* moved one hour later into the offset typically corresponding to "summer".
*
* @param localDateTime the local date-time, not null
* @param zone the time-zone, not null
* @param preferredOffset the zone offset, null if no preference
* @return the zoned date-time, not null
*/
public static ZonedDateTime ofLocal(LocalDateTime localDateTime, ZoneId zone, ZoneOffset preferredOffset) {
Objects.requireNonNull(localDateTime, "localDateTime");
Objects.requireNonNull(zone, "zone");
if (zone instanceof ZoneOffset) {
return new ZonedDateTime(localDateTime, (ZoneOffset) zone, zone);
}
ZoneRules rules = zone.getRules();
List<ZoneOffset> validOffsets = rules.getValidOffsets(localDateTime);
ZoneOffset offset;
if (validOffsets.size() == 1) {
offset = validOffsets.get(0);
} else if (validOffsets.size() == 0) {
ZoneOffsetTransition trans = rules.getTransition(localDateTime);
localDateTime = localDateTime.plusSeconds(trans.getDuration().getSeconds());
offset = trans.getOffsetAfter();
} else {
if (preferredOffset != null && validOffsets.contains(preferredOffset)) {
offset = preferredOffset;
} else {
offset = Objects.requireNonNull(validOffsets.get(0), "offset"); // protect against bad ZoneRules
}
}
return new ZonedDateTime(localDateTime, offset, zone);
}
/**
* Obtains an instance from a local date-time using the preferred offset if possible.
*
* @param localDateTime the local date-time, not null
* @param zone the zone identifier, not null
* @param preferredOffset the zone offset, null if no preference
* @return the zoned date-time, not null
*/
static <R extends ChronoLocalDate> ChronoZonedDateTime<R> ofBest(
ChronoLocalDateTimeImpl<R> localDateTime, ZoneId zone, ZoneOffset preferredOffset) {
Objects.requireNonNull(localDateTime, "localDateTime");
Objects.requireNonNull(zone, "zone");
if (zone instanceof ZoneOffset) {
return new ChronoZonedDateTimeImpl<>(localDateTime, (ZoneOffset) zone, zone);
}
ZoneRules rules = zone.getRules();
LocalDateTime isoLDT = LocalDateTime.from(localDateTime);
List<ZoneOffset> validOffsets = rules.getValidOffsets(isoLDT);
ZoneOffset offset;
if (validOffsets.size() == 1) {
offset = validOffsets.get(0);
} else if (validOffsets.size() == 0) {
ZoneOffsetTransition trans = rules.getTransition(isoLDT);
localDateTime = localDateTime.plusSeconds(trans.getDuration().getSeconds());
offset = trans.getOffsetAfter();
} else {
if (preferredOffset != null && validOffsets.contains(preferredOffset)) {
offset = preferredOffset;
} else {
offset = validOffsets.get(0);
}
}
Objects.requireNonNull(offset, "offset"); // protect against bad ZoneRules
return new ChronoZonedDateTimeImpl<>(localDateTime, offset, zone);
}
/**
* Obtains an instance from a local date-time using the preferred offset if possible.
*
* @param localDateTime the local date-time, not null
* @param zone the zone identifier, not null
* @param preferredOffset the zone offset, null if no preference
* @return the zoned date-time, not null
*/
static <R extends ChronoLocalDate> ChronoZonedDateTime<R> ofBest(
ChronoLocalDateTimeImpl<R> localDateTime, ZoneId zone, ZoneOffset preferredOffset) {
Objects.requireNonNull(localDateTime, "localDateTime");
Objects.requireNonNull(zone, "zone");
if (zone instanceof ZoneOffset) {
return new ChronoZonedDateTimeImpl<>(localDateTime, (ZoneOffset) zone, zone);
}
ZoneRules rules = zone.getRules();
LocalDateTime isoLDT = LocalDateTime.from(localDateTime);
List<ZoneOffset> validOffsets = rules.getValidOffsets(isoLDT);
ZoneOffset offset;
if (validOffsets.size() == 1) {
offset = validOffsets.get(0);
} else if (validOffsets.size() == 0) {
ZoneOffsetTransition trans = rules.getTransition(isoLDT);
localDateTime = localDateTime.plusSeconds(trans.getDuration().getSeconds());
offset = trans.getOffsetAfter();
} else {
if (preferredOffset != null && validOffsets.contains(preferredOffset)) {
offset = preferredOffset;
} else {
offset = validOffsets.get(0);
}
}
Objects.requireNonNull(offset, "offset"); // protect against bad ZoneRules
return new ChronoZonedDateTimeImpl<>(localDateTime, offset, zone);
}
/**
* Obtains an instance from a local date-time using the preferred offset if possible.
*
* @param localDateTime the local date-time, not null
* @param zone the zone identifier, not null
* @param preferredOffset the zone offset, null if no preference
* @return the zoned date-time, not null
*/
static <R extends ChronoLocalDate> ChronoZonedDateTime<R> ofBest(
ChronoLocalDateTimeImpl<R> localDateTime, ZoneId zone, ZoneOffset preferredOffset) {
Objects.requireNonNull(localDateTime, "localDateTime");
Objects.requireNonNull(zone, "zone");
if (zone instanceof ZoneOffset) {
return new ChronoZonedDateTimeImpl<>(localDateTime, (ZoneOffset) zone, zone);
}
ZoneRules rules = zone.getRules();
LocalDateTime isoLDT = LocalDateTime.from(localDateTime);
List<ZoneOffset> validOffsets = rules.getValidOffsets(isoLDT);
ZoneOffset offset;
if (validOffsets.size() == 1) {
offset = validOffsets.get(0);
} else if (validOffsets.size() == 0) {
ZoneOffsetTransition trans = rules.getTransition(isoLDT);
localDateTime = localDateTime.plusSeconds(trans.getDuration().getSeconds());
offset = trans.getOffsetAfter();
} else {
if (preferredOffset != null && validOffsets.contains(preferredOffset)) {
offset = preferredOffset;
} else {
offset = validOffsets.get(0);
}
}
Objects.requireNonNull(offset, "offset"); // protect against bad ZoneRules
return new ChronoZonedDateTimeImpl<>(localDateTime, offset, zone);
}
/**
* Obtains an instance from a local date-time using the preferred offset if possible.
*
* @param localDateTime the local date-time, not null
* @param zone the zone identifier, not null
* @param preferredOffset the zone offset, null if no preference
* @return the zoned date-time, not null
*/
static <R extends ChronoLocalDate> ChronoZonedDateTime<R> ofBest(
ChronoLocalDateTimeImpl<R> localDateTime, ZoneId zone, ZoneOffset preferredOffset) {
Objects.requireNonNull(localDateTime, "localDateTime");
Objects.requireNonNull(zone, "zone");
if (zone instanceof ZoneOffset) {
return new ChronoZonedDateTimeImpl<>(localDateTime, (ZoneOffset) zone, zone);
}
ZoneRules rules = zone.getRules();
LocalDateTime isoLDT = LocalDateTime.from(localDateTime);
List<ZoneOffset> validOffsets = rules.getValidOffsets(isoLDT);
ZoneOffset offset;
if (validOffsets.size() == 1) {
offset = validOffsets.get(0);
} else if (validOffsets.size() == 0) {
ZoneOffsetTransition trans = rules.getTransition(isoLDT);
localDateTime = localDateTime.plusSeconds(trans.getDuration().getSeconds());
offset = trans.getOffsetAfter();
} else {
if (preferredOffset != null && validOffsets.contains(preferredOffset)) {
offset = preferredOffset;
} else {
offset = validOffsets.get(0);
}
}
Objects.requireNonNull(offset, "offset"); // protect against bad ZoneRules
return new ChronoZonedDateTimeImpl<>(localDateTime, offset, zone);
}
/**
* Obtains an instance from a local date-time using the preferred offset if possible.
*
* @param localDateTime the local date-time, not null
* @param zone the zone identifier, not null
* @param preferredOffset the zone offset, null if no preference
* @return the zoned date-time, not null
*/
static <R extends ChronoLocalDate> ChronoZonedDateTime<R> ofBest(
ChronoLocalDateTimeImpl<R> localDateTime, ZoneId zone, ZoneOffset preferredOffset) {
Objects.requireNonNull(localDateTime, "localDateTime");
Objects.requireNonNull(zone, "zone");
if (zone instanceof ZoneOffset) {
return new ChronoZonedDateTimeImpl<>(localDateTime, (ZoneOffset) zone, zone);
}
ZoneRules rules = zone.getRules();
LocalDateTime isoLDT = LocalDateTime.from(localDateTime);
List<ZoneOffset> validOffsets = rules.getValidOffsets(isoLDT);
ZoneOffset offset;
if (validOffsets.size() == 1) {
offset = validOffsets.get(0);
} else if (validOffsets.size() == 0) {
ZoneOffsetTransition trans = rules.getTransition(isoLDT);
localDateTime = localDateTime.plusSeconds(trans.getDuration().getSeconds());
offset = trans.getOffsetAfter();
} else {
if (preferredOffset != null && validOffsets.contains(preferredOffset)) {
offset = preferredOffset;
} else {
offset = validOffsets.get(0);
}
}
Objects.requireNonNull(offset, "offset"); // protect against bad ZoneRules
return new ChronoZonedDateTimeImpl<>(localDateTime, offset, zone);
}
/**
* Obtains an instance from a local date-time using the preferred offset if possible.
*
* @param localDateTime the local date-time, not null
* @param zone the zone identifier, not null
* @param preferredOffset the zone offset, null if no preference
* @return the zoned date-time, not null
*/
static <R extends ChronoLocalDate> ChronoZonedDateTime<R> ofBest(
ChronoLocalDateTimeImpl<R> localDateTime, ZoneId zone, ZoneOffset preferredOffset) {
Objects.requireNonNull(localDateTime, "localDateTime");
Objects.requireNonNull(zone, "zone");
if (zone instanceof ZoneOffset) {
return new ChronoZonedDateTimeImpl<>(localDateTime, (ZoneOffset) zone, zone);
}
ZoneRules rules = zone.getRules();
LocalDateTime isoLDT = LocalDateTime.from(localDateTime);
List<ZoneOffset> validOffsets = rules.getValidOffsets(isoLDT);
ZoneOffset offset;
if (validOffsets.size() == 1) {
offset = validOffsets.get(0);
} else if (validOffsets.size() == 0) {
ZoneOffsetTransition trans = rules.getTransition(isoLDT);
localDateTime = localDateTime.plusSeconds(trans.getDuration().getSeconds());
offset = trans.getOffsetAfter();
} else {
if (preferredOffset != null && validOffsets.contains(preferredOffset)) {
offset = preferredOffset;
} else {
offset = validOffsets.get(0);
}
}
Objects.requireNonNull(offset, "offset"); // protect against bad ZoneRules
return new ChronoZonedDateTimeImpl<>(localDateTime, offset, zone);
}
/**
* Obtains an instance from a local date-time using the preferred offset if possible.
*
* @param localDateTime the local date-time, not null
* @param zone the zone identifier, not null
* @param preferredOffset the zone offset, null if no preference
* @return the zoned date-time, not null
*/
static <R extends ChronoLocalDate> ChronoZonedDateTime<R> ofBest(
ChronoLocalDateTimeImpl<R> localDateTime, ZoneId zone, ZoneOffset preferredOffset) {
Objects.requireNonNull(localDateTime, "localDateTime");
Objects.requireNonNull(zone, "zone");
if (zone instanceof ZoneOffset) {
return new ChronoZonedDateTimeImpl<>(localDateTime, (ZoneOffset) zone, zone);
}
ZoneRules rules = zone.getRules();
LocalDateTime isoLDT = LocalDateTime.from(localDateTime);
List<ZoneOffset> validOffsets = rules.getValidOffsets(isoLDT);
ZoneOffset offset;
if (validOffsets.size() == 1) {
offset = validOffsets.get(0);
} else if (validOffsets.size() == 0) {
ZoneOffsetTransition trans = rules.getTransition(isoLDT);
localDateTime = localDateTime.plusSeconds(trans.getDuration().getSeconds());
offset = trans.getOffsetAfter();
} else {
if (preferredOffset != null && validOffsets.contains(preferredOffset)) {
offset = preferredOffset;
} else {
offset = validOffsets.get(0);
}
}
Objects.requireNonNull(offset, "offset"); // protect against bad ZoneRules
return new ChronoZonedDateTimeImpl<>(localDateTime, offset, zone);
}