| /* |
| * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * This file is available under and governed by the GNU General Public |
| * License version 2 only, as published by the Free Software Foundation. |
| * However, the following notice accompanied the original version of this |
| * file: |
| * |
| * Copyright (c) 2007-2012, Stephen Colebourne & Michael Nascimento Santos |
| * |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * |
| * * Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the following disclaimer. |
| * |
| * * Redistributions in binary form must reproduce the above copyright notice, |
| * this list of conditions and the following disclaimer in the documentation |
| * and/or other materials provided with the distribution. |
| * |
| * * Neither the name of JSR-310 nor the names of its contributors |
| * may be used to endorse or promote products derived from this software |
| * without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| package java.time; |
| |
| import static java.time.temporal.ChronoField.INSTANT_SECONDS; |
| import static java.time.temporal.ChronoField.NANO_OF_SECOND; |
| import static java.time.temporal.ChronoField.OFFSET_SECONDS; |
| |
| import java.io.DataOutput; |
| import java.io.IOException; |
| import java.io.ObjectInput; |
| import java.io.InvalidObjectException; |
| import java.io.ObjectInputStream; |
| import java.io.Serializable; |
| import java.time.chrono.ChronoZonedDateTime; |
| import java.time.format.DateTimeFormatter; |
| import java.time.format.DateTimeParseException; |
| import java.time.temporal.ChronoField; |
| import java.time.temporal.ChronoUnit; |
| import java.time.temporal.Temporal; |
| import java.time.temporal.TemporalAccessor; |
| import java.time.temporal.TemporalAdjuster; |
| import java.time.temporal.TemporalAmount; |
| import java.time.temporal.TemporalField; |
| import java.time.temporal.TemporalQueries; |
| import java.time.temporal.TemporalQuery; |
| import java.time.temporal.TemporalUnit; |
| import java.time.temporal.UnsupportedTemporalTypeException; |
| import java.time.temporal.ValueRange; |
| import java.time.zone.ZoneOffsetTransition; |
| import java.time.zone.ZoneRules; |
| import java.util.List; |
| import java.util.Objects; |
| |
| /** |
| * A date-time with a time-zone in the ISO-8601 calendar system, |
| * such as {@code 2007-12-03T10:15:30+01:00 Europe/Paris}. |
| * <p> |
| * {@code ZonedDateTime} is an immutable representation of a date-time with a time-zone. |
| * This class stores all date and time fields, to a precision of nanoseconds, |
| * and a time-zone, with a zone offset used to handle ambiguous local date-times. |
| * For example, the value |
| * "2nd October 2007 at 13:45.30.123456789 +02:00 in the Europe/Paris time-zone" |
| * can be stored in a {@code ZonedDateTime}. |
| * <p> |
| * This class handles conversion from the local time-line of {@code LocalDateTime} |
| * to the instant time-line of {@code Instant}. |
| * The difference between the two time-lines is the offset from UTC/Greenwich, |
| * represented by a {@code ZoneOffset}. |
| * <p> |
| * Converting between the two time-lines involves calculating the offset using the |
| * {@link ZoneRules rules} accessed from the {@code ZoneId}. |
| * Obtaining the offset for an instant is simple, as there is exactly one valid |
| * offset for each instant. By contrast, obtaining the offset for a local date-time |
| * is not straightforward. There are three cases: |
| * <ul> |
| * <li>Normal, with one valid offset. For the vast majority of the year, the normal |
| * case applies, where there is a single valid offset for the local date-time.</li> |
| * <li>Gap, with zero valid offsets. This is when clocks jump forward typically |
| * due to the spring daylight savings change from "winter" to "summer". |
| * In a gap there are local date-time values with no valid offset.</li> |
| * <li>Overlap, with two valid offsets. This is when clocks are set back typically |
| * due to the autumn daylight savings change from "summer" to "winter". |
| * In an overlap there are local date-time values with two valid offsets.</li> |
| * </ul> |
| * <p> |
| * Any method that converts directly or implicitly from a local date-time to an |
| * instant by obtaining the offset has the potential to be complicated. |
| * <p> |
| * For Gaps, the general strategy is that if the local date-time falls in the |
| * middle of a Gap, then the resulting zoned date-time will have a local date-time |
| * shifted forwards by the length of the Gap, resulting in a date-time in the later |
| * offset, typically "summer" time. |
| * <p> |
| * For Overlaps, the general strategy is that if the local date-time falls in the |
| * middle of an Overlap, then the previous offset will be retained. If there is no |
| * previous offset, or the previous offset is invalid, then the earlier offset is |
| * used, typically "summer" time.. Two additional methods, |
| * {@link #withEarlierOffsetAtOverlap()} and {@link #withLaterOffsetAtOverlap()}, |
| * help manage the case of an overlap. |
| * <p> |
| * In terms of design, this class should be viewed primarily as the combination |
| * of a {@code LocalDateTime} and a {@code ZoneId}. The {@code ZoneOffset} is |
| * a vital, but secondary, piece of information, used to ensure that the class |
| * represents an instant, especially during a daylight savings overlap. |
| * |
| * <p> |
| * This is a <a href="{@docRoot}/java/lang/doc-files/ValueBased.html">value-based</a> |
| * class; use of identity-sensitive operations (including reference equality |
| * ({@code ==}), identity hash code, or synchronization) on instances of |
| * {@code ZonedDateTime} may have unpredictable results and should be avoided. |
| * The {@code equals} method should be used for comparisons. |
| * |
| * @implSpec |
| * A {@code ZonedDateTime} holds state equivalent to three separate objects, |
| * a {@code LocalDateTime}, a {@code ZoneId} and the resolved {@code ZoneOffset}. |
| * The offset and local date-time are used to define an instant when necessary. |
| * The zone ID is used to obtain the rules for how and when the offset changes. |
| * The offset cannot be freely set, as the zone controls which offsets are valid. |
| * <p> |
| * This class is immutable and thread-safe. |
| * |
| * @since 1.8 |
| */ |
| public final class ZonedDateTime |
| implements Temporal, ChronoZonedDateTime<LocalDate>, Serializable { |
| |
| /** |
| * Serialization version. |
| */ |
| private static final long serialVersionUID = -6260982410461394882L; |
| |
| /** |
| * The local date-time. |
| */ |
| private final LocalDateTime dateTime; |
| /** |
| * The offset from UTC/Greenwich. |
| */ |
| private final ZoneOffset offset; |
| /** |
| * The time-zone. |
| */ |
| private final ZoneId zone; |
| |
| //----------------------------------------------------------------------- |
| /** |
| * Obtains the current date-time from the system clock in the default time-zone. |
| * <p> |
| * This will query the {@link Clock#systemDefaultZone() system clock} in the default |
| * time-zone to obtain the current date-time. |
| * The zone and offset will be set based on the time-zone in the clock. |
| * <p> |
| * Using this method will prevent the ability to use an alternate clock for testing |
| * because the clock is hard-coded. |
| * |
| * @return the current date-time using the system clock, not null |
| */ |
| public static ZonedDateTime now() { |
| return now(Clock.systemDefaultZone()); |
| } |
| |
| /** |
| * Obtains the current date-time from the system clock in the specified time-zone. |
| * <p> |
| * This will query the {@link Clock#system(ZoneId) system clock} to obtain the current date-time. |
| * Specifying the time-zone avoids dependence on the default time-zone. |
| * The offset will be calculated from the specified time-zone. |
| * <p> |
| * Using this method will prevent the ability to use an alternate clock for testing |
| * because the clock is hard-coded. |
| * |
| * @param zone the zone ID to use, not null |
| * @return the current date-time using the system clock, not null |
| */ |
| public static ZonedDateTime now(ZoneId zone) { |
| return now(Clock.system(zone)); |
| } |
| |
| /** |
| * Obtains the current date-time from the specified clock. |
| * <p> |
| * This will query the specified clock to obtain the current date-time. |
| * The zone and offset will be set based on the time-zone in the clock. |
| * <p> |
| * Using this method allows the use of an alternate clock for testing. |
| * The alternate clock may be introduced using {@link Clock dependency injection}. |
| * |
| * @param clock the clock to use, not null |
| * @return the current date-time, not null |
| */ |
| public static ZonedDateTime now(Clock clock) { |
| Objects.requireNonNull(clock, "clock"); |
| final Instant now = clock.instant(); // called once |
| return ofInstant(now, clock.getZone()); |
| } |
| |
| //----------------------------------------------------------------------- |
| /** |
| * Obtains an instance of {@code ZonedDateTime} from a local date and time. |
| * <p> |
| * This creates a zoned date-time matching the input local date and time as closely as possible. |
| * Time-zone rules, such as daylight savings, mean that not every local date-time |
| * is valid for the specified zone, thus the local date-time may be adjusted. |
| * <p> |
| * The local date time and first combined to form a local date-time. |
| * The local date-time is then 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, when clocks are set back, there are two valid offsets. |
| * This method uses the earlier offset typically corresponding to "summer". |
| * <p> |
| * In the case of a gap, when 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 date the local date, not null |
| * @param time the local time, not null |
| * @param zone the time-zone, not null |
| * @return the offset date-time, not null |
| */ |
| public static ZonedDateTime of(LocalDate date, LocalTime time, ZoneId zone) { |
| return of(LocalDateTime.of(date, time), zone); |
| } |
| |
| /** |
| * Obtains an instance of {@code ZonedDateTime} from a local date-time. |
| * <p> |
| * This creates a zoned date-time matching the input local date-time as closely as possible. |
| * Time-zone rules, such as daylight savings, mean that not every local date-time |
| * is valid for the specified zone, thus the local date-time may be adjusted. |
| * <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, when clocks are set back, there are two valid offsets. |
| * This method uses the earlier offset typically corresponding to "summer". |
| * <p> |
| * In the case of a gap, when 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 |
| * @return the zoned date-time, not null |
| */ |
| public static ZonedDateTime of(LocalDateTime localDateTime, ZoneId zone) { |
| return ofLocal(localDateTime, zone, null); |
| } |
| |
| /** |
| * Obtains an instance of {@code ZonedDateTime} from a year, month, day, |
| * hour, minute, second, nanosecond and time-zone. |
| * <p> |
| * This creates a zoned date-time matching the local date-time of the seven |
| * specified fields as closely as possible. |
| * Time-zone rules, such as daylight savings, mean that not every local date-time |
| * is valid for the specified zone, thus the local date-time may be adjusted. |
| * <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, when clocks are set back, there are two valid offsets. |
| * This method uses the earlier offset typically corresponding to "summer". |
| * <p> |
| * In the case of a gap, when 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". |
| * <p> |
| * This method exists primarily for writing test cases. |
| * Non test-code will typically use other methods to create an offset time. |
| * {@code LocalDateTime} has five additional convenience variants of the |
| * equivalent factory method taking fewer arguments. |
| * They are not provided here to reduce the footprint of the API. |
| * |
| * @param year the year to represent, from MIN_YEAR to MAX_YEAR |
| * @param month the month-of-year to represent, from 1 (January) to 12 (December) |
| * @param dayOfMonth the day-of-month to represent, from 1 to 31 |
| * @param hour the hour-of-day to represent, from 0 to 23 |
| * @param minute the minute-of-hour to represent, from 0 to 59 |
| * @param second the second-of-minute to represent, from 0 to 59 |
| * @param nanoOfSecond the nano-of-second to represent, from 0 to 999,999,999 |
| * @param zone the time-zone, not null |
| * @return the offset date-time, not null |
| * @throws DateTimeException if the value of any field is out of range, or |
| * if the day-of-month is invalid for the month-year |
| */ |
| public static ZonedDateTime of( |
| int year, int month, int dayOfMonth, |
| int hour, int minute, int second, int nanoOfSecond, ZoneId zone) { |
| LocalDateTime dt = LocalDateTime.of(year, month, dayOfMonth, hour, minute, second, nanoOfSecond); |
| return ofLocal(dt, zone, null); |
| } |
| |
| /** |
| * 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 an {@code Instant}. |
| * <p> |
| * This creates a zoned date-time with the same instant as that specified. |
| * Calling {@link #toInstant()} will return an instant equal to the one used here. |
| * <p> |
| * Converting an instant to a zoned date-time is simple as there is only one valid |
| * offset for each instant. |
| * |
| * @param instant the instant to create the date-time from, not null |
| * @param zone the time-zone, not null |
| * @return the zoned date-time, not null |
| * @throws DateTimeException if the result exceeds the supported range |
| */ |
| public static ZonedDateTime ofInstant(Instant instant, ZoneId zone) { |
| Objects.requireNonNull(instant, "instant"); |
| Objects.requireNonNull(zone, "zone"); |
| return create(instant.getEpochSecond(), instant.getNano(), zone); |
| } |
| |
| /** |
| * Obtains an instance of {@code ZonedDateTime} from the instant formed by combining |
| * the local date-time and offset. |
| * <p> |
| * This creates a zoned date-time by {@link LocalDateTime#toInstant(ZoneOffset) combining} |
| * the {@code LocalDateTime} and {@code ZoneOffset}. |
| * This combination uniquely specifies an instant without ambiguity. |
| * <p> |
| * Converting an instant to a zoned date-time is simple as there is only one valid |
| * offset for each instant. If the valid offset is different to the offset specified, |
| * then the date-time and offset of the zoned date-time will differ from those specified. |
| * <p> |
| * If the {@code ZoneId} to be used is a {@code ZoneOffset}, this method is equivalent |
| * to {@link #of(LocalDateTime, ZoneId)}. |
| * |
| * @param localDateTime the local date-time, not null |
| * @param offset the zone offset, not null |
| * @param zone the time-zone, not null |
| * @return the zoned date-time, not null |
| */ |
| public static ZonedDateTime ofInstant(LocalDateTime localDateTime, ZoneOffset offset, ZoneId zone) { |
| Objects.requireNonNull(localDateTime, "localDateTime"); |
| Objects.requireNonNull(offset, "offset"); |
| Objects.requireNonNull(zone, "zone"); |
| if (zone.getRules().isValidOffset(localDateTime, offset)) { |
| return new ZonedDateTime(localDateTime, offset, zone); |
| } |
| return create(localDateTime.toEpochSecond(offset), localDateTime.getNano(), zone); |
| } |
| |
| /** |
| * Obtains an instance of {@code ZonedDateTime} using seconds from the |
| * epoch of 1970-01-01T00:00:00Z. |
| * |
| * @param epochSecond the number of seconds from the epoch of 1970-01-01T00:00:00Z |
| * @param nanoOfSecond the nanosecond within the second, from 0 to 999,999,999 |
| * @param zone the time-zone, not null |
| * @return the zoned date-time, not null |
| * @throws DateTimeException if the result exceeds the supported range |
| */ |
| private static ZonedDateTime create(long epochSecond, int nanoOfSecond, ZoneId zone) { |
| ZoneRules rules = zone.getRules(); |
| Instant instant = Instant.ofEpochSecond(epochSecond, nanoOfSecond); // TODO: rules should be queryable by epochSeconds |
| ZoneOffset offset = rules.getOffset(instant); |
| LocalDateTime ldt = LocalDateTime.ofEpochSecond(epochSecond, nanoOfSecond, offset); |
| return new ZonedDateTime(ldt, offset, zone); |
| } |
| |
| //----------------------------------------------------------------------- |
| /** |
| * Obtains an instance of {@code ZonedDateTime} strictly validating the |
| * combination of local date-time, offset and zone ID. |
| * <p> |
| * This creates a zoned date-time ensuring that the offset is valid for the |
| * local date-time according to the rules of the specified zone. |
| * If the offset is invalid, an exception is thrown. |
| * |
| * @param localDateTime the local date-time, not null |
| * @param offset the zone offset, not null |
| * @param zone the time-zone, not null |
| * @return the zoned date-time, not null |
| * @throws DateTimeException if the combination of arguments is invalid |
| */ |
| public static ZonedDateTime ofStrict(LocalDateTime localDateTime, ZoneOffset offset, ZoneId zone) { |
| Objects.requireNonNull(localDateTime, "localDateTime"); |
| Objects.requireNonNull(offset, "offset"); |
| Objects.requireNonNull(zone, "zone"); |
| ZoneRules rules = zone.getRules(); |
| if (rules.isValidOffset(localDateTime, offset) == false) { |
| ZoneOffsetTransition trans = rules.getTransition(localDateTime); |
| if (trans != null && trans.isGap()) { |
| // error message says daylight savings for simplicity |
| // even though there are other kinds of gaps |
| throw new DateTimeException("LocalDateTime '" + localDateTime + |
| "' does not exist in zone '" + zone + |
| "' due to a gap in the local time-line, typically caused by daylight savings"); |
| } |
| throw new DateTimeException("ZoneOffset '" + offset + "' is not valid for LocalDateTime '" + |
| localDateTime + "' in zone '" + zone + "'"); |
| } |
| return new ZonedDateTime(localDateTime, offset, zone); |
| } |
| |
| /** |
| * Obtains an instance of {@code ZonedDateTime} leniently, for advanced use cases, |
| * allowing any combination of local date-time, offset and zone ID. |
| * <p> |
| * This creates a zoned date-time with no checks other than no nulls. |
| * This means that the resulting zoned date-time may have an offset that is in conflict |
| * with the zone ID. |
| * <p> |
| * This method is intended for advanced use cases. |
| * For example, consider the case where a zoned date-time with valid fields is created |
| * and then stored in a database or serialization-based store. At some later point, |
| * the object is then re-loaded. However, between those points in time, the government |
| * that defined the time-zone has changed the rules, such that the originally stored |
| * local date-time now does not occur. This method can be used to create the object |
| * in an "invalid" state, despite the change in rules. |
| * |
| * @param localDateTime the local date-time, not null |
| * @param offset the zone offset, not null |
| * @param zone the time-zone, not null |
| * @return the zoned date-time, not null |
| */ |
| private static ZonedDateTime ofLenient(LocalDateTime localDateTime, ZoneOffset offset, ZoneId zone) { |
| Objects.requireNonNull(localDateTime, "localDateTime"); |
| Objects.requireNonNull(offset, "offset"); |
| Objects.requireNonNull(zone, "zone"); |
| if (zone instanceof ZoneOffset && offset.equals(zone) == false) { |
| throw new IllegalArgumentException("ZoneId must match ZoneOffset"); |
| } |
| return new ZonedDateTime(localDateTime, offset, zone); |
| } |
| |
| //----------------------------------------------------------------------- |
| /** |
| * Obtains an instance of {@code ZonedDateTime} from a temporal object. |
| * <p> |
| * This obtains a zoned date-time based on the specified temporal. |
| * A {@code TemporalAccessor} represents an arbitrary set of date and time information, |
| * which this factory converts to an instance of {@code ZonedDateTime}. |
| * <p> |
| * The conversion will first obtain a {@code ZoneId} from the temporal object, |
| * falling back to a {@code ZoneOffset} if necessary. It will then try to obtain |
| * an {@code Instant}, falling back to a {@code LocalDateTime} if necessary. |
| * The result will be either the combination of {@code ZoneId} or {@code ZoneOffset} |
| * with {@code Instant} or {@code LocalDateTime}. |
| * Implementations are permitted to perform optimizations such as accessing |
| * those fields that are equivalent to the relevant objects. |
| * <p> |
| * This method matches the signature of the functional interface {@link TemporalQuery} |
| * allowing it to be used as a query via method reference, {@code ZonedDateTime::from}. |
| * |
| * @param temporal the temporal object to convert, not null |
| * @return the zoned date-time, not null |
| * @throws DateTimeException if unable to convert to an {@code ZonedDateTime} |
| */ |
| public static ZonedDateTime from(TemporalAccessor temporal) { |
| if (temporal instanceof ZonedDateTime) { |
| return (ZonedDateTime) temporal; |
| } |
| try { |
| ZoneId zone = ZoneId.from(temporal); |
| if (temporal.isSupported(INSTANT_SECONDS)) { |
| long epochSecond = temporal.getLong(INSTANT_SECONDS); |
| int nanoOfSecond = temporal.get(NANO_OF_SECOND); |
| return create(epochSecond, nanoOfSecond, zone); |
| } else { |
| LocalDate date = LocalDate.from(temporal); |
| LocalTime time = LocalTime.from(temporal); |
| return of(date, time, zone); |
| } |
| } catch (DateTimeException ex) { |
| throw new DateTimeException("Unable to obtain ZonedDateTime from TemporalAccessor: " + |
| temporal + " of type " + temporal.getClass().getName(), ex); |
| } |
| } |
| |
| //----------------------------------------------------------------------- |
| /** |
| * Obtains an instance of {@code ZonedDateTime} from a text string such as |
| * {@code 2007-12-03T10:15:30+01:00[Europe/Paris]}. |
| * <p> |
| * The string must represent a valid date-time and is parsed using |
| * {@link java.time.format.DateTimeFormatter#ISO_ZONED_DATE_TIME}. |
| * |
| * @param text the text to parse such as "2007-12-03T10:15:30+01:00[Europe/Paris]", not null |
| * @return the parsed zoned date-time, not null |
| * @throws DateTimeParseException if the text cannot be parsed |
| */ |
| public static ZonedDateTime parse(CharSequence text) { |
| return parse(text, DateTimeFormatter.ISO_ZONED_DATE_TIME); |
| } |
| |
| /** |
| * Obtains an instance of {@code ZonedDateTime} from a text string using a specific formatter. |
| * <p> |
| * The text is parsed using the formatter, returning a date-time. |
| * |
| * @param text the text to parse, not null |
| * @param formatter the formatter to use, not null |
| * @return the parsed zoned date-time, not null |
| * @throws DateTimeParseException if the text cannot be parsed |
| */ |
| public static ZonedDateTime parse(CharSequence text, DateTimeFormatter formatter) { |
| Objects.requireNonNull(formatter, "formatter"); |
| return formatter.parse(text, ZonedDateTime::from); |
| } |
| |
| //----------------------------------------------------------------------- |
| /** |
| * Constructor. |
| * |
| * @param dateTime the date-time, validated as not null |
| * @param offset the zone offset, validated as not null |
| * @param zone the time-zone, validated as not null |
| */ |
| private ZonedDateTime(LocalDateTime dateTime, ZoneOffset offset, ZoneId zone) { |
| this.dateTime = dateTime; |
| this.offset = offset; |
| this.zone = zone; |
| } |
| |
| /** |
| * Resolves the new local date-time using this zone ID, retaining the offset if possible. |
| * |
| * @param newDateTime the new local date-time, not null |
| * @return the zoned date-time, not null |
| */ |
| private ZonedDateTime resolveLocal(LocalDateTime newDateTime) { |
| return ofLocal(newDateTime, zone, offset); |
| } |
| |
| /** |
| * Resolves the new local date-time using the offset to identify the instant. |
| * |
| * @param newDateTime the new local date-time, not null |
| * @return the zoned date-time, not null |
| */ |
| private ZonedDateTime resolveInstant(LocalDateTime newDateTime) { |
| return ofInstant(newDateTime, offset, zone); |
| } |
| |
| /** |
| * Resolves the offset into this zoned date-time for the with methods. |
| * <p> |
| * This typically ignores the offset, unless it can be used to switch offset in a DST overlap. |
| * |
| * @param offset the offset, not null |
| * @return the zoned date-time, not null |
| */ |
| private ZonedDateTime resolveOffset(ZoneOffset offset) { |
| if (offset.equals(this.offset) == false && zone.getRules().isValidOffset(dateTime, offset)) { |
| return new ZonedDateTime(dateTime, offset, zone); |
| } |
| return this; |
| } |
| |
| //----------------------------------------------------------------------- |
| /** |
| * Checks if the specified field is supported. |
| * <p> |
| * This checks if this date-time can be queried for the specified field. |
| * If false, then calling the {@link #range(TemporalField) range}, |
| * {@link #get(TemporalField) get} and {@link #with(TemporalField, long)} |
| * methods will throw an exception. |
| * <p> |
| * If the field is a {@link ChronoField} then the query is implemented here. |
| * The supported fields are: |
| * <ul> |
| * <li>{@code NANO_OF_SECOND} |
| * <li>{@code NANO_OF_DAY} |
| * <li>{@code MICRO_OF_SECOND} |
| * <li>{@code MICRO_OF_DAY} |
| * <li>{@code MILLI_OF_SECOND} |
| * <li>{@code MILLI_OF_DAY} |
| * <li>{@code SECOND_OF_MINUTE} |
| * <li>{@code SECOND_OF_DAY} |
| * <li>{@code MINUTE_OF_HOUR} |
| * <li>{@code MINUTE_OF_DAY} |
| * <li>{@code HOUR_OF_AMPM} |
| * <li>{@code CLOCK_HOUR_OF_AMPM} |
| * <li>{@code HOUR_OF_DAY} |
| * <li>{@code CLOCK_HOUR_OF_DAY} |
| * <li>{@code AMPM_OF_DAY} |
| * <li>{@code DAY_OF_WEEK} |
| * <li>{@code ALIGNED_DAY_OF_WEEK_IN_MONTH} |
| * <li>{@code ALIGNED_DAY_OF_WEEK_IN_YEAR} |
| * <li>{@code DAY_OF_MONTH} |
| * <li>{@code DAY_OF_YEAR} |
| * <li>{@code EPOCH_DAY} |
| * <li>{@code ALIGNED_WEEK_OF_MONTH} |
| * <li>{@code ALIGNED_WEEK_OF_YEAR} |
| * <li>{@code MONTH_OF_YEAR} |
| * <li>{@code PROLEPTIC_MONTH} |
| * <li>{@code YEAR_OF_ERA} |
| * <li>{@code YEAR} |
| * <li>{@code ERA} |
| * <li>{@code INSTANT_SECONDS} |
| * <li>{@code OFFSET_SECONDS} |
| * </ul> |
| * All other {@code ChronoField} instances will return false. |
| * <p> |
| * If the field is not a {@code ChronoField}, then the result of this method |
| * is obtained by invoking {@code TemporalField.isSupportedBy(TemporalAccessor)} |
| * passing {@code this} as the argument. |
| * Whether the field is supported is determined by the field. |
| * |
| * @param field the field to check, null returns false |
| * @return true if the field is supported on this date-time, false if not |
| */ |
| @Override |
| public boolean isSupported(TemporalField field) { |
| return field instanceof ChronoField || (field != null && field.isSupportedBy(this)); |
| } |
| |
| /** |
| * Checks if the specified unit is supported. |
| * <p> |
| * This checks if the specified unit can be added to, or subtracted from, this date-time. |
| * If false, then calling the {@link #plus(long, TemporalUnit)} and |
| * {@link #minus(long, TemporalUnit) minus} methods will throw an exception. |
| * <p> |
| * If the unit is a {@link ChronoUnit} then the query is implemented here. |
| * The supported units are: |
| * <ul> |
| * <li>{@code NANOS} |
| * <li>{@code MICROS} |
| * <li>{@code MILLIS} |
| * <li>{@code SECONDS} |
| * <li>{@code MINUTES} |
| * <li>{@code HOURS} |
| * <li>{@code HALF_DAYS} |
| * <li>{@code DAYS} |
| * <li>{@code WEEKS} |
| * <li>{@code MONTHS} |
| * <li>{@code YEARS} |
| * <li>{@code DECADES} |
| * <li>{@code CENTURIES} |
| * <li>{@code MILLENNIA} |
| * <li>{@code ERAS} |
| * </ul> |
| * All other {@code ChronoUnit} instances will return false. |
| * <p> |
| * If the unit is not a {@code ChronoUnit}, then the result of this method |
| * is obtained by invoking {@code TemporalUnit.isSupportedBy(Temporal)} |
| * passing {@code this} as the argument. |
| * Whether the unit is supported is determined by the unit. |
| * |
| * @param unit the unit to check, null returns false |
| * @return true if the unit can be added/subtracted, false if not |
| */ |
| @Override // override for Javadoc |
| public boolean isSupported(TemporalUnit unit) { |
| return ChronoZonedDateTime.super.isSupported(unit); |
| } |
| |
| //----------------------------------------------------------------------- |
| /** |
| * Gets the range of valid values for the specified field. |
| * <p> |
| * The range object expresses the minimum and maximum valid values for a field. |
| * This date-time is used to enhance the accuracy of the returned range. |
| * If it is not possible to return the range, because the field is not supported |
| * or for some other reason, an exception is thrown. |
| * <p> |
| * If the field is a {@link ChronoField} then the query is implemented here. |
| * The {@link #isSupported(TemporalField) supported fields} will return |
| * appropriate range instances. |
| * All other {@code ChronoField} instances will throw an {@code UnsupportedTemporalTypeException}. |
| * <p> |
| * If the field is not a {@code ChronoField}, then the result of this method |
| * is obtained by invoking {@code TemporalField.rangeRefinedBy(TemporalAccessor)} |
| * passing {@code this} as the argument. |
| * Whether the range can be obtained is determined by the field. |
| * |
| * @param field the field to query the range for, not null |
| * @return the range of valid values for the field, not null |
| * @throws DateTimeException if the range for the field cannot be obtained |
| * @throws UnsupportedTemporalTypeException if the field is not supported |
| */ |
| @Override |
| public ValueRange range(TemporalField field) { |
| if (field instanceof ChronoField) { |
| if (field == INSTANT_SECONDS || field == OFFSET_SECONDS) { |
| return field.range(); |
| } |
| return dateTime.range(field); |
| } |
| return field.rangeRefinedBy(this); |
| } |
| |
| /** |
| * Gets the value of the specified field from this date-time as an {@code int}. |
| * <p> |
| * This queries this date-time for the value of the specified field. |
| * The returned value will always be within the valid range of values for the field. |
| * If it is not possible to return the value, because the field is not supported |
| * or for some other reason, an exception is thrown. |
| * <p> |
| * If the field is a {@link ChronoField} then the query is implemented here. |
| * The {@link #isSupported(TemporalField) supported fields} will return valid |
| * values based on this date-time, except {@code NANO_OF_DAY}, {@code MICRO_OF_DAY}, |
| * {@code EPOCH_DAY}, {@code PROLEPTIC_MONTH} and {@code INSTANT_SECONDS} which are too |
| * large to fit in an {@code int} and throw an {@code UnsupportedTemporalTypeException}. |
| * All other {@code ChronoField} instances will throw an {@code UnsupportedTemporalTypeException}. |
| * <p> |
| * If the field is not a {@code ChronoField}, then the result of this method |
| * is obtained by invoking {@code TemporalField.getFrom(TemporalAccessor)} |
| * passing {@code this} as the argument. Whether the value can be obtained, |
| * and what the value represents, is determined by the field. |
| * |
| * @param field the field to get, not null |
| * @return the value for the field |
| * @throws DateTimeException if a value for the field cannot be obtained or |
| * the value is outside the range of valid values for the field |
| * @throws UnsupportedTemporalTypeException if the field is not supported or |
| * the range of values exceeds an {@code int} |
| * @throws ArithmeticException if numeric overflow occurs |
| */ |
| @Override // override for Javadoc and performance |
| public int get(TemporalField field) { |
| if (field instanceof ChronoField) { |
| switch ((ChronoField) field) { |
| case INSTANT_SECONDS: |
| throw new UnsupportedTemporalTypeException("Invalid field 'InstantSeconds' for get() method, use getLong() instead"); |
| case OFFSET_SECONDS: |
| return getOffset().getTotalSeconds(); |
| } |
| return dateTime.get(field); |
| } |
| return ChronoZonedDateTime.super.get(field); |
| } |
| |
| /** |
| * Gets the value of the specified field from this date-time as a {@code long}. |
| * <p> |
| * This queries this date-time for the value of the specified field. |
| * If it is not possible to return the value, because the field is not supported |
| * or for some other reason, an exception is thrown. |
| * <p> |
| * If the field is a {@link ChronoField} then the query is implemented here. |
| * The {@link #isSupported(TemporalField) supported fields} will return valid |
| * values based on this date-time. |
| * All other {@code ChronoField} instances will throw an {@code UnsupportedTemporalTypeException}. |
| * <p> |
| * If the field is not a {@code ChronoField}, then the result of this method |
| * is obtained by invoking {@code TemporalField.getFrom(TemporalAccessor)} |
| * passing {@code this} as the argument. Whether the value can be obtained, |
| * and what the value represents, is determined by the field. |
| * |
| * @param field the field to get, not null |
| * @return the value for the field |
| * @throws DateTimeException if a value for the field cannot be obtained |
| * @throws UnsupportedTemporalTypeException if the field is not supported |
| * @throws ArithmeticException if numeric overflow occurs |
| */ |
| @Override |
| public long getLong(TemporalField field) { |
| if (field instanceof ChronoField) { |
| switch ((ChronoField) field) { |
| case INSTANT_SECONDS: return toEpochSecond(); |
| case OFFSET_SECONDS: return getOffset().getTotalSeconds(); |
| } |
| return dateTime.getLong(field); |
| } |
| return field.getFrom(this); |
| } |
| |
| //----------------------------------------------------------------------- |
| /** |
| * Gets the zone offset, such as '+01:00'. |
| * <p> |
| * This is the offset of the local date-time from UTC/Greenwich. |
| * |
| * @return the zone offset, not null |
| */ |
| @Override |
| public ZoneOffset getOffset() { |
| return offset; |
| } |
| |
| /** |
| * Returns a copy of this date-time changing the zone offset to the |
| * earlier 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 earlier 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 earlier offset, not null |
| */ |
| @Override |
| public ZonedDateTime withEarlierOffsetAtOverlap() { |
| ZoneOffsetTransition trans = getZone().getRules().getTransition(dateTime); |
| if (trans != null && trans.isOverlap()) { |
| ZoneOffset earlierOffset = trans.getOffsetBefore(); |
| if (earlierOffset.equals(offset) == false) { |
| return new ZonedDateTime(dateTime, earlierOffset, zone); |
| } |
| } |
| return this; |
| } |
| |
| /** |
| * 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; |
| } |
| |
| //----------------------------------------------------------------------- |
| /** |
| * Gets the time-zone, such as 'Europe/Paris'. |
| * <p> |
| * This returns the zone ID. This identifies the time-zone {@link ZoneRules rules} |
| * that determine when and how the offset from UTC/Greenwich changes. |
| * <p> |
| * The zone ID may be same as the {@linkplain #getOffset() offset}. |
| * If this is true, then any future calculations, such as addition or subtraction, |
| * have no complex edge cases due to time-zone rules. |
| * See also {@link #withFixedOffsetZone()}. |
| * |
| * @return the time-zone, not null |
| */ |
| @Override |
| public ZoneId getZone() { |
| return zone; |
| } |
| |
| /** |
| * Returns a copy of this date-time with a different time-zone, |
| * retaining the local date-time if possible. |
| * <p> |
| * This method changes the time-zone and retains the local date-time. |
| * The local date-time is only changed if it is invalid for the new zone, |
| * determined using the same approach as |
| * {@link #ofLocal(LocalDateTime, ZoneId, ZoneOffset)}. |
| * <p> |
| * To change the zone and adjust the local date-time, |
| * use {@link #withZoneSameInstant(ZoneId)}. |
| * <p> |
| * This instance is immutable and unaffected by this method call. |
| * |
| * @param zone the time-zone to change to, not null |
| * @return a {@code ZonedDateTime} based on this date-time with the requested zone, not null |
| */ |
| @Override |
| public ZonedDateTime withZoneSameLocal(ZoneId zone) { |
| Objects.requireNonNull(zone, "zone"); |
| return this.zone.equals(zone) ? this : ofLocal(dateTime, zone, offset); |
| } |
| |
| /** |
| * Returns a copy of this date-time with a different time-zone, |
| * retaining the instant. |
| * <p> |
| * This method changes the time-zone and retains the instant. |
| * This normally results in a change to the local date-time. |
| * <p> |
| * This method is based on retaining the same instant, thus gaps and overlaps |
| * in the local time-line have no effect on the result. |
| * <p> |
| * To change the offset while keeping the local time, |
| * use {@link #withZoneSameLocal(ZoneId)}. |
| * |
| * @param zone the time-zone to change to, not null |
| * @return a {@code ZonedDateTime} based on this date-time with the requested zone, not null |
| * @throws DateTimeException if the result exceeds the supported date range |
| */ |
| @Override |
| public ZonedDateTime withZoneSameInstant(ZoneId zone) { |
| Objects.requireNonNull(zone, "zone"); |
| return this.zone.equals(zone) ? this : |
| create(dateTime.toEpochSecond(offset), dateTime.getNano(), zone); |
| } |
| |
| /** |
| * Returns a copy of this date-time with the zone ID set to the offset. |
| * <p> |
| * This returns a zoned date-time where the zone ID is the same as {@link #getOffset()}. |
| * The local date-time, offset and instant of the result will be the same as in this date-time. |
| * <p> |
| * Setting the date-time to a fixed single offset means that any future |
| * calculations, such as addition or subtraction, have no complex edge cases |
| * due to time-zone rules. |
| * This might also be useful when sending a zoned date-time across a network, |
| * as most protocols, such as ISO-8601, only handle offsets, |
| * and not region-based zone IDs. |
| * <p> |
| * This is equivalent to {@code ZonedDateTime.of(zdt.toLocalDateTime(), zdt.getOffset())}. |
| * |
| * @return a {@code ZonedDateTime} with the zone ID set to the offset, not null |
| */ |
| public ZonedDateTime withFixedOffsetZone() { |
| return this.zone.equals(offset) ? this : new ZonedDateTime(dateTime, offset, offset); |
| } |
| |
| //----------------------------------------------------------------------- |
| /** |
| * Gets the {@code LocalDateTime} part of this date-time. |
| * <p> |
| * This returns a {@code LocalDateTime} with the same year, month, day and time |
| * as this date-time. |
| * |
| * @return the local date-time part of this date-time, not null |
| */ |
| @Override // override for return type |
| public LocalDateTime toLocalDateTime() { |
| return dateTime; |
| } |
| |
| //----------------------------------------------------------------------- |
| /** |
| * Gets the {@code LocalDate} part of this date-time. |
| * <p> |
| * This returns a {@code LocalDate} with the same year, month and day |
| * as this date-time. |
| * |
| * @return the date part of this date-time, not null |
| */ |
| @Override // override for return type |
| public LocalDate toLocalDate() { |
| return dateTime.toLocalDate(); |
| } |
| |
| /** |
| * Gets the year field. |
| * <p> |
| * This method returns the primitive {@code int} value for the year. |
| * <p> |
| * The year returned by this method is proleptic as per {@code get(YEAR)}. |
| * To obtain the year-of-era, use {@code get(YEAR_OF_ERA)}. |
| * |
| * @return the year, from MIN_YEAR to MAX_YEAR |
| */ |
| public int getYear() { |
| return dateTime.getYear(); |
| } |
| |
| /** |
| * Gets the month-of-year field from 1 to 12. |
| * <p> |
| * This method returns the month as an {@code int} from 1 to 12. |
| * Application code is frequently clearer if the enum {@link Month} |
| * is used by calling {@link #getMonth()}. |
| * |
| * @return the month-of-year, from 1 to 12 |
| * @see #getMonth() |
| */ |
| public int getMonthValue() { |
| return dateTime.getMonthValue(); |
| } |
| |
| /** |
| * Gets the month-of-year field using the {@code Month} enum. |
| * <p> |
| * This method returns the enum {@link Month} for the month. |
| * This avoids confusion as to what {@code int} values mean. |
| * If you need access to the primitive {@code int} value then the enum |
| * provides the {@link Month#getValue() int value}. |
| * |
| * @return the month-of-year, not null |
| * @see #getMonthValue() |
| */ |
| public Month getMonth() { |
| return dateTime.getMonth(); |
| } |
| |
| /** |
| * Gets the day-of-month field. |
| * <p> |
| * This method returns the primitive {@code int} value for the day-of-month. |
| * |
| * @return the day-of-month, from 1 to 31 |
| */ |
| public int getDayOfMonth() { |
| return dateTime.getDayOfMonth(); |
| } |
| |
| /** |
| * Gets the day-of-year field. |
| * <p> |
| * This method returns the primitive {@code int} value for the day-of-year. |
| * |
| * @return the day-of-year, from 1 to 365, or 366 in a leap year |
| */ |
| public int getDayOfYear() { |
| return dateTime.getDayOfYear(); |
| } |
| |
| /** |
| * Gets the day-of-week field, which is an enum {@code DayOfWeek}. |
| * <p> |
| * This method returns the enum {@link DayOfWeek} for the day-of-week. |
| * This avoids confusion as to what {@code int} values mean. |
| * If you need access to the primitive {@code int} value then the enum |
| * provides the {@link DayOfWeek#getValue() int value}. |
| * <p> |
| * Additional information can be obtained from the {@code DayOfWeek}. |
| * This includes textual names of the values. |
| * |
| * @return the day-of-week, not null |
| */ |
| public DayOfWeek getDayOfWeek() { |
| return dateTime.getDayOfWeek(); |
| } |
| |
| //----------------------------------------------------------------------- |
| /** |
| * Gets the {@code LocalTime} part of this date-time. |
| * <p> |
| * This returns a {@code LocalTime} with the same hour, minute, second and |
| * nanosecond as this date-time. |
| * |
| * @return the time part of this date-time, not null |
| */ |
| @Override // override for Javadoc and performance |
| public LocalTime toLocalTime() { |
| return dateTime.toLocalTime(); |
| } |
| |
| /** |
| * Gets the hour-of-day field. |
| * |
| * @return the hour-of-day, from 0 to 23 |
| */ |
| public int getHour() { |
| return dateTime.getHour(); |
| } |
| |
| /** |
| * Gets the minute-of-hour field. |
| * |
| * @return the minute-of-hour, from 0 to 59 |
| */ |
| public int getMinute() { |
| return dateTime.getMinute(); |
| } |
| |
| /** |
| * Gets the second-of-minute field. |
| * |
| * @return the second-of-minute, from 0 to 59 |
| */ |
| public int getSecond() { |
| return dateTime.getSecond(); |
| } |
| |
| /** |
| * Gets the nano-of-second field. |
| * |
| * @return the nano-of-second, from 0 to 999,999,999 |
| */ |
| public int getNano() { |
| return dateTime.getNano(); |
| } |
| |
| //----------------------------------------------------------------------- |
| /** |
| * Returns an adjusted copy of this date-time. |
| * <p> |
| * This returns a {@code ZonedDateTime}, based on this one, with the date-time adjusted. |
| * The adjustment takes place using the specified adjuster strategy object. |
| * Read the documentation of the adjuster to understand what adjustment will be made. |
| * <p> |
| * A simple adjuster might simply set the one of the fields, such as the year field. |
| * A more complex adjuster might set the date to the last day of the month. |
| * A selection of common adjustments is provided in |
| * {@link java.time.temporal.TemporalAdjusters TemporalAdjusters}. |
| * These include finding the "last day of the month" and "next Wednesday". |
| * Key date-time classes also implement the {@code TemporalAdjuster} interface, |
| * such as {@link Month} and {@link java.time.MonthDay MonthDay}. |
| * The adjuster is responsible for handling special cases, such as the varying |
| * lengths of month and leap years. |
| * <p> |
| * For example this code returns a date on the last day of July: |
| * <pre> |
| * import static java.time.Month.*; |
| * import static java.time.temporal.TemporalAdjusters.*; |
| * |
| * result = zonedDateTime.with(JULY).with(lastDayOfMonth()); |
| * </pre> |
| * <p> |
| * The classes {@link LocalDate} and {@link LocalTime} implement {@code TemporalAdjuster}, |
| * thus this method can be used to change the date, time or offset: |
| * <pre> |
| * result = zonedDateTime.with(date); |
| * result = zonedDateTime.with(time); |
| * </pre> |
| * <p> |
| * {@link ZoneOffset} also implements {@code TemporalAdjuster} however using it |
| * as an argument typically has no effect. The offset of a {@code ZonedDateTime} is |
| * controlled primarily by the time-zone. As such, changing the offset does not generally |
| * make sense, because there is only one valid offset for the local date-time and zone. |
| * If the zoned date-time is in a daylight savings overlap, then the offset is used |
| * to switch between the two valid offsets. In all other cases, the offset is ignored. |
| * <p> |
| * The result of this method is obtained by invoking the |
| * {@link TemporalAdjuster#adjustInto(Temporal)} method on the |
| * specified adjuster passing {@code this} as the argument. |
| * <p> |
| * This instance is immutable and unaffected by this method call. |
| * |
| * @param adjuster the adjuster to use, not null |
| * @return a {@code ZonedDateTime} based on {@code this} with the adjustment made, not null |
| * @throws DateTimeException if the adjustment cannot be made |
| * @throws ArithmeticException if numeric overflow occurs |
| */ |
| @Override |
| public ZonedDateTime with(TemporalAdjuster adjuster) { |
| // optimizations |
| if (adjuster instanceof LocalDate) { |
| return resolveLocal(LocalDateTime.of((LocalDate) adjuster, dateTime.toLocalTime())); |
| } else if (adjuster instanceof LocalTime) { |
| return resolveLocal(LocalDateTime.of(dateTime.toLocalDate(), (LocalTime) adjuster)); |
| } else if (adjuster instanceof LocalDateTime) { |
| return resolveLocal((LocalDateTime) adjuster); |
| } else if (adjuster instanceof OffsetDateTime) { |
| OffsetDateTime odt = (OffsetDateTime) adjuster; |
| return ofLocal(odt.toLocalDateTime(), zone, odt.getOffset()); |
| } else if (adjuster instanceof Instant) { |
| Instant instant = (Instant) adjuster; |
| return create(instant.getEpochSecond(), instant.getNano(), zone); |
| } else if (adjuster instanceof ZoneOffset) { |
| return resolveOffset((ZoneOffset) adjuster); |
| } |
| return (ZonedDateTime) adjuster.adjustInto(this); |
| } |
| |
| /** |
| * Returns a copy of this date-time with the specified field set to a new value. |
| * <p> |
| * This returns a {@code ZonedDateTime}, based on this one, with the value |
| * for the specified field changed. |
| * This can be used to change any supported field, such as the year, month or day-of-month. |
| * If it is not possible to set the value, because the field is not supported or for |
| * some other reason, an exception is thrown. |
| * <p> |
| * In some cases, changing the specified field can cause the resulting date-time to become invalid, |
| * such as changing the month from 31st January to February would make the day-of-month invalid. |
| * In cases like this, the field is responsible for resolving the date. Typically it will choose |
| * the previous valid date, which would be the last valid day of February in this example. |
| * <p> |
| * If the field is a {@link ChronoField} then the adjustment is implemented here. |
| * <p> |
| * The {@code INSTANT_SECONDS} field will return a date-time with the specified instant. |
| * The zone and nano-of-second are unchanged. |
| * The result will have an offset derived from the new instant and original zone. |
| * If the new instant value is outside the valid range then a {@code DateTimeException} will be thrown. |
| * <p> |
| * The {@code OFFSET_SECONDS} field will typically be ignored. |
| * The offset of a {@code ZonedDateTime} is controlled primarily by the time-zone. |
| * As such, changing the offset does not generally make sense, because there is only |
| * one valid offset for the local date-time and zone. |
| * If the zoned date-time is in a daylight savings overlap, then the offset is used |
| * to switch between the two valid offsets. In all other cases, the offset is ignored. |
| * If the new offset value is outside the valid range then a {@code DateTimeException} will be thrown. |
| * <p> |
| * The other {@link #isSupported(TemporalField) supported fields} will behave as per |
| * the matching method on {@link LocalDateTime#with(TemporalField, long) LocalDateTime}. |
| * The zone is not part of the calculation and will be unchanged. |
| * When converting back to {@code ZonedDateTime}, if the local date-time is in an overlap, |
| * then the offset will be retained if possible, otherwise the earlier offset will be used. |
| * If in a gap, the local date-time will be adjusted forward by the length of the gap. |
| * <p> |
| * All other {@code ChronoField} instances will throw an {@code UnsupportedTemporalTypeException}. |
| * <p> |
| * If the field is not a {@code ChronoField}, then the result of this method |
| * is obtained by invoking {@code TemporalField.adjustInto(Temporal, long)} |
| * passing {@code this} as the argument. In this case, the field determines |
| * whether and how to adjust the instant. |
| * <p> |
| * This instance is immutable and unaffected by this method call. |
| * |
| * @param field the field to set in the result, not null |
| * @param newValue the new value of the field in the result |
| * @return a {@code ZonedDateTime} based on {@code this} with the specified field set, not null |
| * @throws DateTimeException if the field cannot be set |
| * @throws UnsupportedTemporalTypeException if the field is not supported |
| * @throws ArithmeticException if numeric overflow occurs |
| */ |
| @Override |
| public ZonedDateTime with(TemporalField field, long newValue) { |
| if (field instanceof ChronoField) { |
| ChronoField f = (ChronoField) field; |
| switch (f) { |
| case INSTANT_SECONDS: |
| return create(newValue, getNano(), zone); |
| case OFFSET_SECONDS: |
| ZoneOffset offset = ZoneOffset.ofTotalSeconds(f.checkValidIntValue(newValue)); |
| return resolveOffset(offset); |
| } |
| return resolveLocal(dateTime.with(field, newValue)); |
| } |
| return field.adjustInto(this, newValue); |
| } |
| |
| //----------------------------------------------------------------------- |
| /** |
| * Returns a copy of this {@code ZonedDateTime} with the year altered. |
| * <p> |
| * This operates on the local time-line, |
| * {@link LocalDateTime#withYear(int) changing the year} of the local date-time. |
| * This is then converted back to a {@code ZonedDateTime}, using the zone ID |
| * to obtain the offset. |
| * <p> |
| * When converting back to {@code ZonedDateTime}, if the local date-time is in an overlap, |
| * then the offset will be retained if possible, otherwise the earlier offset will be used. |
| * If in a gap, the local date-time will be adjusted forward by the length of the gap. |
| * <p> |
| * This instance is immutable and unaffected by this method call. |
| * |
| * @param year the year to set in the result, from MIN_YEAR to MAX_YEAR |
| * @return a {@code ZonedDateTime} based on this date-time with the requested year, not null |
| * @throws DateTimeException if the year value is invalid |
| */ |
| public ZonedDateTime withYear(int year) { |
| return resolveLocal(dateTime.withYear(year)); |
| } |
| |
| /** |
| * Returns a copy of this {@code ZonedDateTime} with the month-of-year altered. |
| * <p> |
| * This operates on the local time-line, |
| * {@link LocalDateTime#withMonth(int) changing the month} of the local date-time. |
| * This is then converted back to a {@code ZonedDateTime}, using the zone ID |
| * to obtain the offset. |
| * <p> |
| * When converting back to {@code ZonedDateTime}, if the local date-time is in an overlap, |
| * then the offset will be retained if possible, otherwise the earlier offset will be used. |
| * If in a gap, the local date-time will be adjusted forward by the length of the gap. |
| * <p> |
| * This instance is immutable and unaffected by this method call. |
| * |
| * @param month the month-of-year to set in the result, from 1 (January) to 12 (December) |
| * @return a {@code ZonedDateTime} based on this date-time with the requested month, not null |
| * @throws DateTimeException if the month-of-year value is invalid |
| */ |
| public ZonedDateTime withMonth(int month) { |
| return resolveLocal(dateTime.withMonth(month)); |
| } |
| |
| /** |
| * Returns a copy of this {@code ZonedDateTime} with the day-of-month altered. |
| * <p> |
| * This operates on the local time-line, |
| * {@link LocalDateTime#withDayOfMonth(int) changing the day-of-month} of the local date-time. |
| * This is then converted back to a {@code ZonedDateTime}, using the zone ID |
| * to obtain the offset. |
| * <p> |
| * When converting back to {@code ZonedDateTime}, if the local date-time is in an overlap, |
| * then the offset will be retained if possible, otherwise the earlier offset will be used. |
| * If in a gap, the local date-time will be adjusted forward by the length of the gap. |
| * <p> |
| * This instance is immutable and unaffected by this method call. |
| * |
| * @param dayOfMonth the day-of-month to set in the result, from 1 to 28-31 |
| * @return a {@code ZonedDateTime} based on this date-time with the requested day, not null |
| * @throws DateTimeException if the day-of-month value is invalid, |
| * or if the day-of-month is invalid for the month-year |
| */ |
| public ZonedDateTime withDayOfMonth(int dayOfMonth) { |
| return resolveLocal(dateTime.withDayOfMonth(dayOfMonth)); |
| } |
| |
| /** |
| * Returns a copy of this {@code ZonedDateTime} with the day-of-year altered. |
| * <p> |
| * This operates on the local time-line, |
| * {@link LocalDateTime#withDayOfYear(int) changing the day-of-year} of the local date-time. |
| * This is then converted back to a {@code ZonedDateTime}, using the zone ID |
| * to obtain the offset. |
| * <p> |
| * When converting back to {@code ZonedDateTime}, if the local date-time is in an overlap, |
| * then the offset will be retained if possible, otherwise the earlier offset will be used. |
| * If in a gap, the local date-time will be adjusted forward by the length of the gap. |
| * <p> |
| * This instance is immutable and unaffected by this method call. |
| * |
| * @param dayOfYear the day-of-year to set in the result, from 1 to 365-366 |
| * @return a {@code ZonedDateTime} based on this date with the requested day, not null |
| * @throws DateTimeException if the day-of-year value is invalid, |
| * or if the day-of-year is invalid for the year |
| */ |
| public ZonedDateTime withDayOfYear(int dayOfYear) { |
| return resolveLocal(dateTime.withDayOfYear(dayOfYear)); |
| } |
| |
| //----------------------------------------------------------------------- |
| /** |
| * Returns a copy of this {@code ZonedDateTime} with the hour-of-day altered. |
| * <p> |
| * This operates on the local time-line, |
| * {@linkplain LocalDateTime#withHour(int) changing the time} of the local date-time. |
| * This is then converted back to a {@code ZonedDateTime}, using the zone ID |
| * to obtain the offset. |
| * <p> |
| * When converting back to {@code ZonedDateTime}, if the local date-time is in an overlap, |
| * then the offset will be retained if possible, otherwise the earlier offset will be used. |
| * If in a gap, the local date-time will be adjusted forward by the length of the gap. |
| * <p> |
| * This instance is immutable and unaffected by this method call. |
| * |
| * @param hour the hour-of-day to set in the result, from 0 to 23 |
| * @return a {@code ZonedDateTime} based on this date-time with the requested hour, not null |
| * @throws DateTimeException if the hour value is invalid |
| */ |
| public ZonedDateTime withHour(int hour) { |
| return resolveLocal(dateTime.withHour(hour)); |
| } |
| |
| /** |
| * Returns a copy of this {@code ZonedDateTime} with the minute-of-hour altered. |
| * <p> |
| * This operates on the local time-line, |
| * {@linkplain LocalDateTime#withMinute(int) changing the time} of the local date-time. |
| * This is then converted back to a {@code ZonedDateTime}, using the zone ID |
| * to obtain the offset. |
| * <p> |
| * When converting back to {@code ZonedDateTime}, if the local date-time is in an overlap, |
| * then the offset will be retained if possible, otherwise the earlier offset will be used. |
| * If in a gap, the local date-time will be adjusted forward by the length of the gap. |
| * <p> |
| * This instance is immutable and unaffected by this method call. |
| * |
| * @param minute the minute-of-hour to set in the result, from 0 to 59 |
| * @return a {@code ZonedDateTime} based on this date-time with the requested minute, not null |
| * @throws DateTimeException if the minute value is invalid |
| */ |
| public ZonedDateTime withMinute(int minute) { |
| return resolveLocal(dateTime.withMinute(minute)); |
| } |
| |
| /** |
| * Returns a copy of this {@code ZonedDateTime} with the second-of-minute altered. |
| * <p> |
| * This operates on the local time-line, |
| * {@linkplain LocalDateTime#withSecond(int) changing the time} of the local date-time. |
| * This is then converted back to a {@code ZonedDateTime}, using the zone ID |
| * to obtain the offset. |
| * <p> |
| * When converting back to {@code ZonedDateTime}, if the local date-time is in an overlap, |
| * then the offset will be retained if possible, otherwise the earlier offset will be used. |
| * If in a gap, the local date-time will be adjusted forward by the length of the gap. |
| * <p> |
| * This instance is immutable and unaffected by this method call. |
| * |
| * @param second the second-of-minute to set in the result, from 0 to 59 |
| * @return a {@code ZonedDateTime} based on this date-time with the requested second, not null |
| * @throws DateTimeException if the second value is invalid |
| */ |
| public ZonedDateTime withSecond(int second) { |
| return resolveLocal(dateTime.withSecond(second)); |
| } |
| |
| /** |
| * Returns a copy of this {@code ZonedDateTime} with the nano-of-second altered. |
| * <p> |
| * This operates on the local time-line, |
| * {@linkplain LocalDateTime#withNano(int) changing the time} of the local date-time. |
| * This is then converted back to a {@code ZonedDateTime}, using the zone ID |
| * to obtain the offset. |
| * <p> |
| * When converting back to {@code ZonedDateTime}, if the local date-time is in an overlap, |
| * then the offset will be retained if possible, otherwise the earlier offset will be used. |
| * If in a gap, the local date-time will be adjusted forward by the length of the gap. |
| * <p> |
| * This instance is immutable and unaffected by this method call. |
| * |
| * @param nanoOfSecond the nano-of-second to set in the result, from 0 to 999,999,999 |
| * @return a {@code ZonedDateTime} based on this date-time with the requested nanosecond, not null |
| * @throws DateTimeException if the nano value is invalid |
| */ |
| public ZonedDateTime withNano(int nanoOfSecond) { |
| return resolveLocal(dateTime.withNano(nanoOfSecond)); |
| } |
| |
| //----------------------------------------------------------------------- |
| /** |
| * Returns a copy of this {@code ZonedDateTime} with the time truncated. |
| * <p> |
| * Truncation returns a copy of the original date-time with fields |
| * smaller than the specified unit set to zero. |
| * For example, truncating with the {@link ChronoUnit#MINUTES minutes} unit |
| * will set the second-of-minute and nano-of-second field to zero. |
| * <p> |
| * The unit must have a {@linkplain TemporalUnit#getDuration() duration} |
| * that divides into the length of a standard day without remainder. |
| * This includes all supplied time units on {@link ChronoUnit} and |
| * {@link ChronoUnit#DAYS DAYS}. Other units throw an exception. |
| * <p> |
| * This operates on the local time-line, |
| * {@link LocalDateTime#truncatedTo(TemporalUnit) truncating} |
| * the underlying local date-time. This is then converted back to a |
| * {@code ZonedDateTime}, using the zone ID to obtain the offset. |
| * <p> |
| * When converting back to {@code ZonedDateTime}, if the local date-time is in an overlap, |
| * then the offset will be retained if possible, otherwise the earlier offset will be used. |
| * If in a gap, the local date-time will be adjusted forward by the length of the gap. |
| * <p> |
| * This instance is immutable and unaffected by this method call. |
| * |
| * @param unit the unit to truncate to, not null |
| * @return a {@code ZonedDateTime} based on this date-time with the time truncated, not null |
| * @throws DateTimeException if unable to truncate |
| * @throws UnsupportedTemporalTypeException if the unit is not supported |
| */ |
| public ZonedDateTime truncatedTo(TemporalUnit unit) { |
| return resolveLocal(dateTime.truncatedTo(unit)); |
| } |
| |
| //----------------------------------------------------------------------- |
| /** |
| * Returns a copy of this date-time with the specified amount added. |
| * <p> |
| * This returns a {@code ZonedDateTime}, based on this one, with the specified amount added. |
| * The amount is typically {@link Period} or {@link Duration} but may be |
| * any other type implementing the {@link TemporalAmount} interface. |
| * <p> |
| * The calculation is delegated to the amount object by calling |
| * {@link TemporalAmount#addTo(Temporal)}. The amount implementation is free |
| * to implement the addition in any way it wishes, however it typically |
| * calls back to {@link #plus(long, TemporalUnit)}. Consult the documentation |
| * of the amount implementation to determine if it can be successfully added. |
| * <p> |
| * This instance is immutable and unaffected by this method call. |
| * |
| * @param amountToAdd the amount to add, not null |
| * @return a {@code ZonedDateTime} based on this date-time with the addition made, not null |
| * @throws DateTimeException if the addition cannot be made |
| * @throws ArithmeticException if numeric overflow occurs |
| */ |
| @Override |
| public ZonedDateTime plus(TemporalAmount amountToAdd) { |
| if (amountToAdd instanceof Period) { |
| Period periodToAdd = (Period) amountToAdd; |
| return resolveLocal(dateTime.plus(periodToAdd)); |
| } |
| Objects.requireNonNull(amountToAdd, "amountToAdd"); |
| return (ZonedDateTime) amountToAdd.addTo(this); |
| } |
| |
| /** |
| * Returns a copy of this date-time with the specified amount added. |
| * <p> |
| * This returns a {@code ZonedDateTime}, based on this one, with the amount |
| * in terms of the unit added. If it is not possible to add the amount, because the |
| * unit is not supported or for some other reason, an exception is thrown. |
| * <p> |
| * If the field is a {@link ChronoUnit} then the addition is implemented here. |
| * The zone is not part of the calculation and will be unchanged in the result. |
| * The calculation for date and time units differ. |
| * <p> |
| * Date units operate on the local time-line. |
| * The period is first added to the local date-time, then converted back |
| * to a zoned date-time using the zone ID. |
| * The conversion uses {@link #ofLocal(LocalDateTime, ZoneId, ZoneOffset)} |
| * with the offset before the addition. |
| * <p> |
| * Time units operate on the instant time-line. |
| * The period is first added to the local date-time, then converted back to |
| * a zoned date-time using the zone ID. |
| * The conversion uses {@link #ofInstant(LocalDateTime, ZoneOffset, ZoneId)} |
| * with the offset before the addition. |
| * <p> |
| * If the field is not a {@code ChronoUnit}, then the result of this method |
| * is obtained by invoking {@code TemporalUnit.addTo(Temporal, long)} |
| * passing {@code this} as the argument. In this case, the unit determines |
| * whether and how to perform the addition. |
| * <p> |
| * This instance is immutable and unaffected by this method call. |
| * |
| * @param amountToAdd the amount of the unit to add to the result, may be negative |
| * @param unit the unit of the amount to add, not null |
| * @return a {@code ZonedDateTime} based on this date-time with the specified amount added, not null |
| * @throws DateTimeException if the addition cannot be made |
| * @throws UnsupportedTemporalTypeException if the unit is not supported |
| * @throws ArithmeticException if numeric overflow occurs |
| */ |
| @Override |
| public ZonedDateTime plus(long amountToAdd, TemporalUnit unit) { |
| if (unit instanceof ChronoUnit) { |
| if (unit.isDateBased()) { |
| return resolveLocal(dateTime.plus(amountToAdd, unit)); |
| } else { |
| return resolveInstant(dateTime.plus(amountToAdd, unit)); |
| } |
| } |
| return unit.addTo(this, amountToAdd); |
| } |
| |
| //----------------------------------------------------------------------- |
| /** |
| * Returns a copy of this {@code ZonedDateTime} with the specified number of years added. |
| * <p> |
| * This operates on the local time-line, |
| * {@link LocalDateTime#plusYears(long) adding years} to the local date-time. |
| * This is then converted back to a {@code ZonedDateTime}, using the zone ID |
| * to obtain the offset. |
| * <p> |
| * When converting back to {@code ZonedDateTime}, if the local date-time is in an overlap, |
| * then the offset will be retained if possible, otherwise the earlier offset will be used. |
| * If in a gap, the local date-time will be adjusted forward by the length of the gap. |
| * <p> |
| * This instance is immutable and unaffected by this method call. |
| * |
| * @param years the years to add, may be negative |
| * @return a {@code ZonedDateTime} based on this date-time with the years added, not null |
| * @throws DateTimeException if the result exceeds the supported date range |
| */ |
| public ZonedDateTime plusYears(long years) { |
| return resolveLocal(dateTime.plusYears(years)); |
| } |
| |
| /** |
| * Returns a copy of this {@code ZonedDateTime} with the specified number of months added. |
| * <p> |
| * This operates on the local time-line, |
| * {@link LocalDateTime#plusMonths(long) adding months} to the local date-time. |
| * This is then converted back to a {@code ZonedDateTime}, using the zone ID |
| * to obtain the offset. |
| * <p> |
| * When converting back to {@code ZonedDateTime}, if the local date-time is in an overlap, |
| * then the offset will be retained if possible, otherwise the earlier offset will be used. |
| * If in a gap, the local date-time will be adjusted forward by the length of the gap. |
| * <p> |
| * This instance is immutable and unaffected by this method call. |
| * |
| * @param months the months to add, may be negative |
| * @return a {@code ZonedDateTime} based on this date-time with the months added, not null |
| * @throws DateTimeException if the result exceeds the supported date range |
| */ |
| public ZonedDateTime plusMonths(long months) { |
| return resolveLocal(dateTime.plusMonths(months)); |
| } |
| |
| /** |
| * Returns a copy of this {@code ZonedDateTime} with the specified number of weeks added. |
| * <p> |
| * This operates on the local time-line, |
| * {@link LocalDateTime#plusWeeks(long) adding weeks} to the local date-time. |
| * This is then converted back to a {@code ZonedDateTime}, using the zone ID |
| * to obtain the offset. |
| * <p> |
| * When converting back to {@code ZonedDateTime}, if the local date-time is in an overlap, |
| * then the offset will be retained if possible, otherwise the earlier offset will be used. |
| * If in a gap, the local date-time will be adjusted forward by the length of the gap. |
| * <p> |
| * This instance is immutable and unaffected by this method call. |
| * |
| * @param weeks the weeks to add, may be negative |
| * @return a {@code ZonedDateTime} based on this date-time with the weeks added, not null |
| * @throws DateTimeException if the result exceeds the supported date range |
| */ |
| public ZonedDateTime plusWeeks(long weeks) { |
| return resolveLocal(dateTime.plusWeeks(weeks)); |
| } |
| |
| /** |
| * Returns a copy of this {@code ZonedDateTime} with the specified number of days added. |
| * <p> |
| * This operates on the local time-line, |
| * {@link LocalDateTime#plusDays(long) adding days} to the local date-time. |
| * This is then converted back to a {@code ZonedDateTime}, using the zone ID |
| * to obtain the offset. |
| * <p> |
| * When converting back to {@code ZonedDateTime}, if the local date-time is in an overlap, |
| * then the offset will be retained if possible, otherwise the earlier offset will be used. |
| * If in a gap, the local date-time will be adjusted forward by the length of the gap. |
| * <p> |
| * This instance is immutable and unaffected by this method call. |
| * |
| * @param days the days to add, may be negative |
| * @return a {@code ZonedDateTime} based on this date-time with the days added, not null |
| * @throws DateTimeException if the result exceeds the supported date range |
| */ |
| public ZonedDateTime plusDays(long days) { |
| return resolveLocal(dateTime.plusDays(days)); |
| } |
| |
| //----------------------------------------------------------------------- |
| /** |
| * Returns a copy of this {@code ZonedDateTime} with the specified number of hours added. |
| * <p> |
| * This operates on the instant time-line, such that adding one hour will |
| * always be a duration of one hour later. |
| * This may cause the local date-time to change by an amount other than one hour. |
| * Note that this is a different approach to that used by days, months and years, |
| * thus adding one day is not the same as adding 24 hours. |
| * <p> |
| * For example, consider a time-zone, such as 'Europe/Paris', where the |
| * Autumn DST cutover means that the local times 02:00 to 02:59 occur twice |
| * changing from offset +02:00 in summer to +01:00 in winter. |
| * <ul> |
| * <li>Adding one hour to 01:30+02:00 will result in 02:30+02:00 |
| * (both in summer time) |
| * <li>Adding one hour to 02:30+02:00 will result in 02:30+01:00 |
| * (moving from summer to winter time) |
| * <li>Adding one hour to 02:30+01:00 will result in 03:30+01:00 |
| * (both in winter time) |
| * <li>Adding three hours to 01:30+02:00 will result in 03:30+01:00 |
| * (moving from summer to winter time) |
| * </ul> |
| * <p> |
| * This instance is immutable and unaffected by this method call. |
| * |
| * @param hours the hours to add, may be negative |
| * @return a {@code ZonedDateTime} based on this date-time with the hours added, not null |
| * @throws DateTimeException if the result exceeds the supported date range |
| */ |
| public ZonedDateTime plusHours(long hours) { |
| return resolveInstant(dateTime.plusHours(hours)); |
| } |
| |
| /** |
| * Returns a copy of this {@code ZonedDateTime} with the specified number of minutes added. |
| * <p> |
| * This operates on the instant time-line, such that adding one minute will |
| * always be a duration of one minute later. |
| * This may cause the local date-time to change by an amount other than one minute. |
| * Note that this is a different approach to that used by days, months and years. |
| * <p> |
| * This instance is immutable and unaffected by this method call. |
| * |
| * @param minutes the minutes to add, may be negative |
| * @return a {@code ZonedDateTime} based on this date-time with the minutes added, not null |
| * @throws DateTimeException if the result exceeds the supported date range |
| */ |
| public ZonedDateTime plusMinutes(long minutes) { |
| return resolveInstant(dateTime.plusMinutes(minutes)); |
| } |
| |
| /** |
| * Returns a copy of this {@code ZonedDateTime} with the specified number of seconds added. |
| * <p> |
| * This operates on the instant time-line, such that adding one second will |
| * always be a duration of one second later. |
| * This may cause the local date-time to change by an amount other than one second. |
| * Note that this is a different approach to that used by days, months and years. |
| * <p> |
| * This instance is immutable and unaffected by this method call. |
| * |
| * @param seconds the seconds to add, may be negative |
| * @return a {@code ZonedDateTime} based on this date-time with the seconds added, not null |
| * @throws DateTimeException if the result exceeds the supported date range |
| */ |
| public ZonedDateTime plusSeconds(long seconds) { |
| return resolveInstant(dateTime.plusSeconds(seconds)); |
| } |
| |
| /** |
| * Returns a copy of this {@code ZonedDateTime} with the specified number of nanoseconds added. |
| * <p> |
| * This operates on the instant time-line, such that adding one nano will |
| * always be a duration of one nano later. |
| * This may cause the local date-time to change by an amount other than one nano. |
| * Note that this is a different approach to that used by days, months and years. |
| * <p> |
| * This instance is immutable and unaffected by this method call. |
| * |
| * @param nanos the nanos to add, may be negative |
| * @return a {@code ZonedDateTime} based on this date-time with the nanoseconds added, not null |
| * @throws DateTimeException if the result exceeds the supported date range |
| */ |
| public ZonedDateTime plusNanos(long nanos) { |
| return resolveInstant(dateTime.plusNanos(nanos)); |
| } |
| |
| //----------------------------------------------------------------------- |
| /** |
| * Returns a copy of this date-time with the specified amount subtracted. |
| * <p> |
| * This returns a {@code ZonedDateTime}, based on this one, with the specified amount subtracted. |
| * The amount is typically {@link Period} or {@link Duration} but may be |
| * any other type implementing the {@link TemporalAmount} interface. |
| * <p> |
| * The calculation is delegated to the amount object by calling |
| * {@link TemporalAmount#subtractFrom(Temporal)}. The amount implementation is free |
| * to implement the subtraction in any way it wishes, however it typically |
| * calls back to {@link #minus(long, TemporalUnit)}. Consult the documentation |
| * of the amount implementation to determine if it can be successfully subtracted. |
| * <p> |
| * This instance is immutable and unaffected by this method call. |
| * |
| * @param amountToSubtract the amount to subtract, not null |
| * @return a {@code ZonedDateTime} based on this date-time with the subtraction made, not null |
| * @throws DateTimeException if the subtraction cannot be made |
| * @throws ArithmeticException if numeric overflow occurs |
| */ |
| @Override |
| public ZonedDateTime minus(TemporalAmount amountToSubtract) { |
| if (amountToSubtract instanceof Period) { |
| Period periodToSubtract = (Period) amountToSubtract; |
| return resolveLocal(dateTime.minus(periodToSubtract)); |
| } |
| Objects.requireNonNull(amountToSubtract, "amountToSubtract"); |
| return (ZonedDateTime) amountToSubtract.subtractFrom(this); |
| } |
| |
| /** |
| * Returns a copy of this date-time with the specified amount subtracted. |
| * <p> |
| * This returns a {@code ZonedDateTime}, based on this one, with the amount |
| * in terms of the unit subtracted. If it is not possible to subtract the amount, |
| * because the unit is not supported or for some other reason, an exception is thrown. |
| * <p> |
| * The calculation for date and time units differ. |
| * <p> |
| * Date units operate on the local time-line. |
| * The period is first subtracted from the local date-time, then converted back |
| * to a zoned date-time using the zone ID. |
| * The conversion uses {@link #ofLocal(LocalDateTime, ZoneId, ZoneOffset)} |
| * with the offset before the subtraction. |
| * <p> |
| * Time units operate on the instant time-line. |
| * The period is first subtracted from the local date-time, then converted back to |
| * a zoned date-time using the zone ID. |
| * The conversion uses {@link #ofInstant(LocalDateTime, ZoneOffset, ZoneId)} |
| * with the offset before the subtraction. |
| * <p> |
| * This method is equivalent to {@link #plus(long, TemporalUnit)} with the amount negated. |
| * See that method for a full description of how addition, and thus subtraction, works. |
| * <p> |
| * This instance is immutable and unaffected by this method call. |
| * |
| * @param amountToSubtract the amount of the unit to subtract from the result, may be negative |
| * @param unit the unit of the amount to subtract, not null |
| * @return a {@code ZonedDateTime} based on this date-time with the specified amount subtracted, not null |
| * @throws DateTimeException if the subtraction cannot be made |
| * @throws UnsupportedTemporalTypeException if the unit is not supported |
| * @throws ArithmeticException if numeric overflow occurs |
| */ |
| @Override |
| public ZonedDateTime minus(long amountToSubtract, TemporalUnit unit) { |
| return (amountToSubtract == Long.MIN_VALUE ? plus(Long.MAX_VALUE, unit).plus(1, unit) : plus(-amountToSubtract, unit)); |
| } |
| |
| //----------------------------------------------------------------------- |
| /** |
| * Returns a copy of this {@code ZonedDateTime} with the specified number of years subtracted. |
| * <p> |
| * This operates on the local time-line, |
| * {@link LocalDateTime#minusYears(long) subtracting years} to the local date-time. |
| * This is then converted back to a {@code ZonedDateTime}, using the zone ID |
| * to obtain the offset. |
| * <p> |
| * When converting back to {@code ZonedDateTime}, if the local date-time is in an overlap, |
| * then the offset will be retained if possible, otherwise the earlier offset will be used. |
| * If in a gap, the local date-time will be adjusted forward by the length of the gap. |
| * <p> |
| * This instance is immutable and unaffected by this method call. |
| * |
| * @param years the years to subtract, may be negative |
| * @return a {@code ZonedDateTime} based on this date-time with the years subtracted, not null |
| * @throws DateTimeException if the result exceeds the supported date range |
| */ |
| public ZonedDateTime minusYears(long years) { |
| return (years == Long.MIN_VALUE ? plusYears(Long.MAX_VALUE).plusYears(1) : plusYears(-years)); |
| } |
| |
| /** |
| * Returns a copy of this {@code ZonedDateTime} with the specified number of months subtracted. |
| * <p> |
| * This operates on the local time-line, |
| * {@link LocalDateTime#minusMonths(long) subtracting months} to the local date-time. |
| * This is then converted back to a {@code ZonedDateTime}, using the zone ID |
| * to obtain the offset. |
| * <p> |
| * When converting back to {@code ZonedDateTime}, if the local date-time is in an overlap, |
| * then the offset will be retained if possible, otherwise the earlier offset will be used. |
| * If in a gap, the local date-time will be adjusted forward by the length of the gap. |
| * <p> |
| * This instance is immutable and unaffected by this method call. |
| * |
| * @param months the months to subtract, may be negative |
| * @return a {@code ZonedDateTime} based on this date-time with the months subtracted, not null |
| * @throws DateTimeException if the result exceeds the supported date range |
| */ |
| public ZonedDateTime minusMonths(long months) { |
| return (months == Long.MIN_VALUE ? plusMonths(Long.MAX_VALUE).plusMonths(1) : plusMonths(-months)); |
| } |
| |
| /** |
| * Returns a copy of this {@code ZonedDateTime} with the specified number of weeks subtracted. |
| * <p> |
| * This operates on the local time-line, |
| * {@link LocalDateTime#minusWeeks(long) subtracting weeks} to the local date-time. |
| * This is then converted back to a {@code ZonedDateTime}, using the zone ID |
| * to obtain the offset. |
| * <p> |
| * When converting back to {@code ZonedDateTime}, if the local date-time is in an overlap, |
| * then the offset will be retained if possible, otherwise the earlier offset will be used. |
| * If in a gap, the local date-time will be adjusted forward by the length of the gap. |
| * <p> |
| * This instance is immutable and unaffected by this method call. |
| * |
| * @param weeks the weeks to subtract, may be negative |
| * @return a {@code ZonedDateTime} based on this date-time with the weeks subtracted, not null |
| * @throws DateTimeException if the result exceeds the supported date range |
| */ |
| public ZonedDateTime minusWeeks(long weeks) { |
| return (weeks == Long.MIN_VALUE ? plusWeeks(Long.MAX_VALUE).plusWeeks(1) : plusWeeks(-weeks)); |
| } |
| |
| /** |
| * Returns a copy of this {@code ZonedDateTime} with the specified number of days subtracted. |
| * <p> |
| * This operates on the local time-line, |
| * {@link LocalDateTime#minusDays(long) subtracting days} to the local date-time. |
| * This is then converted back to a {@code ZonedDateTime}, using the zone ID |
| * to obtain the offset. |
| * <p> |
| * When converting back to {@code ZonedDateTime}, if the local date-time is in an overlap, |
| * then the offset will be retained if possible, otherwise the earlier offset will be used. |
| * If in a gap, the local date-time will be adjusted forward by the length of the gap. |
| * <p> |
| * This instance is immutable and unaffected by this method call. |
| * |
| * @param days the days to subtract, may be negative |
| * @return a {@code ZonedDateTime} based on this date-time with the days subtracted, not null |
| * @throws DateTimeException if the result exceeds the supported date range |
| */ |
| public ZonedDateTime minusDays(long days) { |
| return (days == Long.MIN_VALUE ? plusDays(Long.MAX_VALUE).plusDays(1) : plusDays(-days)); |
| } |
| |
| //----------------------------------------------------------------------- |
| /** |
| * Returns a copy of this {@code ZonedDateTime} with the specified number of hours subtracted. |
| * <p> |
| * This operates on the instant time-line, such that subtracting one hour will |
| * always be a duration of one hour earlier. |
| * This may cause the local date-time to change by an amount other than one hour. |
| * Note that this is a different approach to that used by days, months and years, |
| * thus subtracting one day is not the same as adding 24 hours. |
| * <p> |
| * For example, consider a time-zone, such as 'Europe/Paris', where the |
| * Autumn DST cutover means that the local times 02:00 to 02:59 occur twice |
| * changing from offset +02:00 in summer to +01:00 in winter. |
| * <ul> |
| * <li>Subtracting one hour from 03:30+01:00 will result in 02:30+01:00 |
| * (both in winter time) |
| * <li>Subtracting one hour from 02:30+01:00 will result in 02:30+02:00 |
| * (moving from winter to summer time) |
| * <li>Subtracting one hour from 02:30+02:00 will result in 01:30+02:00 |
| * (both in summer time) |
| * <li>Subtracting three hours from 03:30+01:00 will result in 01:30+02:00 |
| * (moving from winter to summer time) |
| * </ul> |
| * <p> |
| * This instance is immutable and unaffected by this method call. |
| * |
| * @param hours the hours to subtract, may be negative |
| * @return a {@code ZonedDateTime} based on this date-time with the hours subtracted, not null |
| * @throws DateTimeException if the result exceeds the supported date range |
| */ |
| public ZonedDateTime minusHours(long hours) { |
| return (hours == Long.MIN_VALUE ? plusHours(Long.MAX_VALUE).plusHours(1) : plusHours(-hours)); |
| } |
| |
| /** |
| * Returns a copy of this {@code ZonedDateTime} with the specified number of minutes subtracted. |
| * <p> |
| * This operates on the instant time-line, such that subtracting one minute will |
| * always be a duration of one minute earlier. |
| * This may cause the local date-time to change by an amount other than one minute. |
| * Note that this is a different approach to that used by days, months and years. |
| * <p> |
| * This instance is immutable and unaffected by this method call. |
| * |
| * @param minutes the minutes to subtract, may be negative |
| * @return a {@code ZonedDateTime} based on this date-time with the minutes subtracted, not null |
| * @throws DateTimeException if the result exceeds the supported date range |
| */ |
| public ZonedDateTime minusMinutes(long minutes) { |
| return (minutes == Long.MIN_VALUE ? plusMinutes(Long.MAX_VALUE).plusMinutes(1) : plusMinutes(-minutes)); |
| } |
| |
| /** |
| * Returns a copy of this {@code ZonedDateTime} with the specified number of seconds subtracted. |
| * <p> |
| * This operates on the instant time-line, such that subtracting one second will |
| * always be a duration of one second earlier. |
| * This may cause the local date-time to change by an amount other than one second. |
| * Note that this is a different approach to that used by days, months and years. |
| * <p> |
| * This instance is immutable and unaffected by this method call. |
| * |
| * @param seconds the seconds to subtract, may be negative |
| * @return a {@code ZonedDateTime} based on this date-time with the seconds subtracted, not null |
| * @throws DateTimeException if the result exceeds the supported date range |
| */ |
| public ZonedDateTime minusSeconds(long seconds) { |
| return (seconds == Long.MIN_VALUE ? plusSeconds(Long.MAX_VALUE).plusSeconds(1) : plusSeconds(-seconds)); |
| } |
| |
| /** |
| * Returns a copy of this {@code ZonedDateTime} with the specified number of nanoseconds subtracted. |
| * <p> |
| * This operates on the instant time-line, such that subtracting one nano will |
| * always be a duration of one nano earlier. |
| * This may cause the local date-time to change by an amount other than one nano. |
| * Note that this is a different approach to that used by days, months and years. |
| * <p> |
| * This instance is immutable and unaffected by this method call. |
| * |
| * @param nanos the nanos to subtract, may be negative |
| * @return a {@code ZonedDateTime} based on this date-time with the nanoseconds subtracted, not null |
| * @throws DateTimeException if the result exceeds the supported date range |
| */ |
| public ZonedDateTime minusNanos(long nanos) { |
| return (nanos == Long.MIN_VALUE ? plusNanos(Long.MAX_VALUE).plusNanos(1) : plusNanos(-nanos)); |
| } |
| |
| //----------------------------------------------------------------------- |
| /** |
| * Queries this date-time using the specified query. |
| * <p> |
| * This queries this date-time using the specified query strategy object. |
| * The {@code TemporalQuery} object defines the logic to be used to |
| * obtain the result. Read the documentation of the query to understand |
| * what the result of this method will be. |
| * <p> |
| * The result of this method is obtained by invoking the |
| * {@link TemporalQuery#queryFrom(TemporalAccessor)} method on the |
| * specified query passing {@code this} as the argument. |
| * |
| * @param <R> the type of the result |
| * @param query the query to invoke, not null |
| * @return the query result, null may be returned (defined by the query) |
| * @throws DateTimeException if unable to query (defined by the query) |
| * @throws ArithmeticException if numeric overflow occurs (defined by the query) |
| */ |
| @SuppressWarnings("unchecked") |
| @Override // override for Javadoc |
| public <R> R query(TemporalQuery<R> query) { |
| if (query == TemporalQueries.localDate()) { |
| return (R) toLocalDate(); |
| } |
| return ChronoZonedDateTime.super.query(query); |
| } |
| |
| /** |
| * Calculates the amount of time until another date-time in terms of the specified unit. |
| * <p> |
| * This calculates the amount of time between two {@code ZonedDateTime} |
| * objects in terms of a single {@code TemporalUnit}. |
| * The start and end points are {@code this} and the specified date-time. |
| * The result will be negative if the end is before the start. |
| * For example, the amount in days between two date-times can be calculated |
| * using {@code startDateTime.until(endDateTime, DAYS)}. |
| * <p> |
| * The {@code Temporal} passed to this method is converted to a |
| * {@code ZonedDateTime} using {@link #from(TemporalAccessor)}. |
| * If the time-zone differs between the two zoned date-times, the specified |
| * end date-time is normalized to have the same zone as this date-time. |
| * <p> |
| * The calculation returns a whole number, representing the number of |
| * complete units between the two date-times. |
| * For example, the amount in months between 2012-06-15T00:00Z and 2012-08-14T23:59Z |
| * will only be one month as it is one minute short of two months. |
| * <p> |
| * There are two equivalent ways of using this method. |
| * The first is to invoke this method. |
| * The second is to use {@link TemporalUnit#between(Temporal, Temporal)}: |
| * <pre> |
| * // these two lines are equivalent |
| * amount = start.until(end, MONTHS); |
| * amount = MONTHS.between(start, end); |
| * </pre> |
| * The choice should be made based on which makes the code more readable. |
| * <p> |
| * The calculation is implemented in this method for {@link ChronoUnit}. |
| * The units {@code NANOS}, {@code MICROS}, {@code MILLIS}, {@code SECONDS}, |
| * {@code MINUTES}, {@code HOURS} and {@code HALF_DAYS}, {@code DAYS}, |
| * {@code WEEKS}, {@code MONTHS}, {@code YEARS}, {@code DECADES}, |
| * {@code CENTURIES}, {@code MILLENNIA} and {@code ERAS} are supported. |
| * Other {@code ChronoUnit} values will throw an exception. |
| * <p> |
| * The calculation for date and time units differ. |
| * <p> |
| * Date units operate on the local time-line, using the local date-time. |
| * For example, the period from noon on day 1 to noon the following day |
| * in days will always be counted as exactly one day, irrespective of whether |
| * there was a daylight savings change or not. |
| * <p> |
| * Time units operate on the instant time-line. |
| * The calculation effectively converts both zoned date-times to instants |
| * and then calculates the period between the instants. |
| * For example, the period from noon on day 1 to noon the following day |
| * in hours may be 23, 24 or 25 hours (or some other amount) depending on |
| * whether there was a daylight savings change or not. |
| * <p> |
| * If the unit is not a {@code ChronoUnit}, then the result of this method |
| * is obtained by invoking {@code TemporalUnit.between(Temporal, Temporal)} |
| * passing {@code this} as the first argument and the converted input temporal |
| * as the second argument. |
| * <p> |
| * This instance is immutable and unaffected by this method call. |
| * |
| * @param endExclusive the end date, exclusive, which is converted to a {@code ZonedDateTime}, not null |
| * @param unit the unit to measure the amount in, not null |
| * @return the amount of time between this date-time and the end date-time |
| * @throws DateTimeException if the amount cannot be calculated, or the end |
| * temporal cannot be converted to a {@code ZonedDateTime} |
| * @throws UnsupportedTemporalTypeException if the unit is not supported |
| * @throws ArithmeticException if numeric overflow occurs |
| */ |
| @Override |
| public long until(Temporal endExclusive, TemporalUnit unit) { |
| ZonedDateTime end = ZonedDateTime.from(endExclusive); |
| if (unit instanceof ChronoUnit) { |
| end = end.withZoneSameInstant(zone); |
| if (unit.isDateBased()) { |
| return dateTime.until(end.dateTime, unit); |
| } else { |
| return toOffsetDateTime().until(end.toOffsetDateTime(), unit); |
| } |
| } |
| return unit.between(this, end); |
| } |
| |
| /** |
| * Formats this date-time using the specified formatter. |
| * <p> |
| * This date-time will be passed to the formatter to produce a string. |
| * |
| * @param formatter the formatter to use, not null |
| * @return the formatted date-time string, not null |
| * @throws DateTimeException if an error occurs during printing |
| */ |
| @Override // override for Javadoc and performance |
| public String format(DateTimeFormatter formatter) { |
| Objects.requireNonNull(formatter, "formatter"); |
| return formatter.format(this); |
| } |
| |
| //----------------------------------------------------------------------- |
| /** |
| * Converts this date-time to an {@code OffsetDateTime}. |
| * <p> |
| * This creates an offset date-time using the local date-time and offset. |
| * The zone ID is ignored. |
| * |
| * @return an offset date-time representing the same local date-time and offset, not null |
| */ |
| public OffsetDateTime toOffsetDateTime() { |
| return OffsetDateTime.of(dateTime, offset); |
| } |
| |
| //----------------------------------------------------------------------- |
| /** |
| * Checks if this date-time is equal to another date-time. |
| * <p> |
| * The comparison is based on the offset date-time and the zone. |
| * Only objects of type {@code ZonedDateTime} are compared, other types return false. |
| * |
| * @param obj the object to check, null returns false |
| * @return true if this is equal to the other date-time |
| */ |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) { |
| return true; |
| } |
| if (obj instanceof ZonedDateTime) { |
| ZonedDateTime other = (ZonedDateTime) obj; |
| return dateTime.equals(other.dateTime) && |
| offset.equals(other.offset) && |
| zone.equals(other.zone); |
| } |
| return false; |
| } |
| |
| /** |
| * A hash code for this date-time. |
| * |
| * @return a suitable hash code |
| */ |
| @Override |
| public int hashCode() { |
| return dateTime.hashCode() ^ offset.hashCode() ^ Integer.rotateLeft(zone.hashCode(), 3); |
| } |
| |
| //----------------------------------------------------------------------- |
| /** |
| * Outputs this date-time as a {@code String}, such as |
| * {@code 2007-12-03T10:15:30+01:00[Europe/Paris]}. |
| * <p> |
| * The format consists of the {@code LocalDateTime} followed by the {@code ZoneOffset}. |
| * If the {@code ZoneId} is not the same as the offset, then the ID is output. |
| * The output is compatible with ISO-8601 if the offset and ID are the same. |
| * |
| * @return a string representation of this date-time, not null |
| */ |
| @Override // override for Javadoc |
| public String toString() { |
| String str = dateTime.toString() + offset.toString(); |
| if (offset != zone) { |
| str += '[' + zone.toString() + ']'; |
| } |
| return str; |
| } |
| |
| //----------------------------------------------------------------------- |
| /** |
| * Writes the object using a |
| * <a href="../../serialized-form.html#java.time.Ser">dedicated serialized form</a>. |
| * @serialData |
| * <pre> |
| * out.writeByte(6); // identifies a ZonedDateTime |
| * // the <a href="../../serialized-form.html#java.time.LocalDateTime">dateTime</a> excluding the one byte header |
| * // the <a href="../../serialized-form.html#java.time.ZoneOffset">offset</a> excluding the one byte header |
| * // the <a href="../../serialized-form.html#java.time.ZoneId">zone ID</a> excluding the one byte header |
| * </pre> |
| * |
| * @return the instance of {@code Ser}, not null |
| */ |
| private Object writeReplace() { |
| return new Ser(Ser.ZONE_DATE_TIME_TYPE, this); |
| } |
| |
| /** |
| * Defend against malicious streams. |
| * |
| * @param s the stream to read |
| * @throws InvalidObjectException always |
| */ |
| private void readObject(ObjectInputStream s) throws InvalidObjectException { |
| throw new InvalidObjectException("Deserialization via serialization delegate"); |
| } |
| |
| void writeExternal(DataOutput out) throws IOException { |
| dateTime.writeExternal(out); |
| offset.writeExternal(out); |
| zone.write(out); |
| } |
| |
| static ZonedDateTime readExternal(ObjectInput in) throws IOException, ClassNotFoundException { |
| LocalDateTime dateTime = LocalDateTime.readExternal(in); |
| ZoneOffset offset = ZoneOffset.readExternal(in); |
| ZoneId zone = (ZoneId) Ser.read(in); |
| return ZonedDateTime.ofLenient(dateTime, offset, zone); |
| } |
| |
| } |