692 lines
26 KiB
Java
692 lines
26 KiB
Java
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/*
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* Copyright (c) 2012, 2019, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* Copyright (c) 2012, Stephen Colebourne & Michael Nascimento Santos
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* * Neither the name of JSR-310 nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package java.time.chrono;
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import static java.time.temporal.ChronoField.ALIGNED_DAY_OF_WEEK_IN_MONTH;
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import static java.time.temporal.ChronoField.ALIGNED_DAY_OF_WEEK_IN_YEAR;
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import static java.time.temporal.ChronoField.ALIGNED_WEEK_OF_MONTH;
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import static java.time.temporal.ChronoField.ALIGNED_WEEK_OF_YEAR;
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import static java.time.temporal.ChronoField.DAY_OF_MONTH;
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import static java.time.temporal.ChronoField.MONTH_OF_YEAR;
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import static java.time.temporal.ChronoField.YEAR;
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import java.io.IOException;
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import java.io.InvalidObjectException;
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import java.io.ObjectInput;
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import java.io.ObjectInputStream;
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import java.io.ObjectOutput;
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import java.io.Serializable;
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import java.time.Clock;
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import java.time.DateTimeException;
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import java.time.LocalDate;
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import java.time.LocalTime;
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import java.time.ZoneId;
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import java.time.temporal.ChronoField;
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import java.time.temporal.TemporalAccessor;
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import java.time.temporal.TemporalAdjuster;
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import java.time.temporal.TemporalAmount;
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import java.time.temporal.TemporalField;
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import java.time.temporal.TemporalQuery;
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import java.time.temporal.TemporalUnit;
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import java.time.temporal.UnsupportedTemporalTypeException;
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import java.time.temporal.ValueRange;
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// Android-changed: removed ValueBased paragraph.
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/**
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* A date in the Hijrah calendar system.
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* <p>
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* This date operates using one of several variants of the
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* {@linkplain HijrahChronology Hijrah calendar}.
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* <p>
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* The Hijrah calendar has a different total of days in a year than
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* Gregorian calendar, and the length of each month is based on the period
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* of a complete revolution of the moon around the earth
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* (as between successive new moons).
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* Refer to the {@link HijrahChronology} for details of supported variants.
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* <p>
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* Each HijrahDate is created bound to a particular HijrahChronology,
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* The same chronology is propagated to each HijrahDate computed from the date.
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* To use a different Hijrah variant, its HijrahChronology can be used
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* to create new HijrahDate instances.
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* Alternatively, the {@link #withVariant} method can be used to convert
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* to a new HijrahChronology.
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*
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* @implSpec
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* This class is immutable and thread-safe.
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*
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* @since 1.8
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*/
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public final class HijrahDate
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extends ChronoLocalDateImpl<HijrahDate>
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implements ChronoLocalDate, Serializable {
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/**
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* Serialization version.
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*/
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@java.io.Serial
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private static final long serialVersionUID = -5207853542612002020L;
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/**
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* The Chronology of this HijrahDate.
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*/
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private final transient HijrahChronology chrono;
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/**
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* The proleptic year.
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*/
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private final transient int prolepticYear;
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/**
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* The month-of-year.
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*/
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private final transient int monthOfYear;
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/**
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* The day-of-month.
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*/
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private final transient int dayOfMonth;
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//-------------------------------------------------------------------------
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/**
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* Obtains an instance of {@code HijrahDate} from the Hijrah proleptic year,
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* month-of-year and day-of-month.
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*
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* @param prolepticYear the proleptic year to represent in the Hijrah calendar
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* @param monthOfYear the month-of-year to represent, from 1 to 12
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* @param dayOfMonth the day-of-month to represent, from 1 to 30
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* @return the Hijrah date, never null
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* @throws DateTimeException if the value of any field is out of range
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*/
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static HijrahDate of(HijrahChronology chrono, int prolepticYear, int monthOfYear, int dayOfMonth) {
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return new HijrahDate(chrono, prolepticYear, monthOfYear, dayOfMonth);
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}
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/**
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* Returns a HijrahDate for the chronology and epochDay.
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* @param chrono The Hijrah chronology
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* @param epochDay the epoch day
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* @return a HijrahDate for the epoch day; non-null
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*/
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static HijrahDate ofEpochDay(HijrahChronology chrono, long epochDay) {
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return new HijrahDate(chrono, epochDay);
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}
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//-----------------------------------------------------------------------
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/**
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* Obtains the current {@code HijrahDate} of the Islamic Umm Al-Qura calendar
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* in the default time-zone.
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* <p>
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* This will query the {@link Clock#systemDefaultZone() system clock} in the default
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* time-zone to obtain the current date.
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* <p>
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* Using this method will prevent the ability to use an alternate clock for testing
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* because the clock is hard-coded.
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*
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* @return the current date using the system clock and default time-zone, not null
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*/
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public static HijrahDate now() {
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return now(Clock.systemDefaultZone());
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}
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/**
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* Obtains the current {@code HijrahDate} of the Islamic Umm Al-Qura calendar
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* in the specified time-zone.
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* <p>
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* This will query the {@link Clock#system(ZoneId) system clock} to obtain the current date.
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* Specifying the time-zone avoids dependence on the default time-zone.
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* <p>
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* Using this method will prevent the ability to use an alternate clock for testing
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* because the clock is hard-coded.
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*
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* @param zone the zone ID to use, not null
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* @return the current date using the system clock, not null
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*/
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public static HijrahDate now(ZoneId zone) {
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return now(Clock.system(zone));
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}
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/**
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* Obtains the current {@code HijrahDate} of the Islamic Umm Al-Qura calendar
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* from the specified clock.
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* <p>
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* This will query the specified clock to obtain the current date - today.
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* Using this method allows the use of an alternate clock for testing.
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* The alternate clock may be introduced using {@linkplain Clock dependency injection}.
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*
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* @param clock the clock to use, not null
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* @return the current date, not null
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* @throws DateTimeException if the current date cannot be obtained
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*/
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public static HijrahDate now(Clock clock) {
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return HijrahDate.ofEpochDay(HijrahChronology.INSTANCE, LocalDate.now(clock).toEpochDay());
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}
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/**
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* Obtains a {@code HijrahDate} of the Islamic Umm Al-Qura calendar
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* from the proleptic-year, month-of-year and day-of-month fields.
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* <p>
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* This returns a {@code HijrahDate} with the specified fields.
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* The day must be valid for the year and month, otherwise an exception will be thrown.
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*
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* @param prolepticYear the Hijrah proleptic-year
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* @param month the Hijrah month-of-year, from 1 to 12
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* @param dayOfMonth the Hijrah day-of-month, from 1 to 30
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* @return the date in Hijrah calendar system, not null
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* @throws DateTimeException if the value of any field is out of range,
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* or if the day-of-month is invalid for the month-year
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*/
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public static HijrahDate of(int prolepticYear, int month, int dayOfMonth) {
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return HijrahChronology.INSTANCE.date(prolepticYear, month, dayOfMonth);
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}
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/**
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* Obtains a {@code HijrahDate} of the Islamic Umm Al-Qura calendar from a temporal object.
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* <p>
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* This obtains a date in the Hijrah calendar system based on the specified temporal.
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* A {@code TemporalAccessor} represents an arbitrary set of date and time information,
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* which this factory converts to an instance of {@code HijrahDate}.
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* <p>
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* The conversion typically uses the {@link ChronoField#EPOCH_DAY EPOCH_DAY}
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* field, which is standardized across calendar systems.
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* <p>
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* This method matches the signature of the functional interface {@link TemporalQuery}
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* allowing it to be used as a query via method reference, {@code HijrahDate::from}.
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*
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* @param temporal the temporal object to convert, not null
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* @return the date in Hijrah calendar system, not null
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* @throws DateTimeException if unable to convert to a {@code HijrahDate}
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*/
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public static HijrahDate from(TemporalAccessor temporal) {
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return HijrahChronology.INSTANCE.date(temporal);
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}
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//-----------------------------------------------------------------------
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/**
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* Constructs an {@code HijrahDate} with the proleptic-year, month-of-year and
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* day-of-month fields.
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*
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* @param chrono The chronology to create the date with
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* @param prolepticYear the proleptic year
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* @param monthOfYear the month of year
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* @param dayOfMonth the day of month
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*/
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private HijrahDate(HijrahChronology chrono, int prolepticYear, int monthOfYear, int dayOfMonth) {
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// Computing the Gregorian day checks the valid ranges
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chrono.getEpochDay(prolepticYear, monthOfYear, dayOfMonth);
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this.chrono = chrono;
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this.prolepticYear = prolepticYear;
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this.monthOfYear = monthOfYear;
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this.dayOfMonth = dayOfMonth;
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}
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/**
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* Constructs an instance with the Epoch Day.
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*
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* @param epochDay the epochDay
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*/
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private HijrahDate(HijrahChronology chrono, long epochDay) {
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int[] dateInfo = chrono.getHijrahDateInfo((int)epochDay);
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this.chrono = chrono;
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this.prolepticYear = dateInfo[0];
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this.monthOfYear = dateInfo[1];
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this.dayOfMonth = dateInfo[2];
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}
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//-----------------------------------------------------------------------
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/**
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* Gets the chronology of this date, which is the Hijrah calendar system.
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* <p>
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* The {@code Chronology} represents the calendar system in use.
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* The era and other fields in {@link ChronoField} are defined by the chronology.
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*
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* @return the Hijrah chronology, not null
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*/
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@Override
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public HijrahChronology getChronology() {
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return chrono;
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}
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/**
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* Gets the era applicable at this date.
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* <p>
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* The Hijrah calendar system has one era, 'AH',
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* defined by {@link HijrahEra}.
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*
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* @return the era applicable at this date, not null
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*/
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@Override
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public HijrahEra getEra() {
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return HijrahEra.AH;
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}
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/**
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* Returns the length of the month represented by this date.
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* <p>
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* This returns the length of the month in days.
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* Month lengths in the Hijrah calendar system vary between 29 and 30 days.
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*
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* @return the length of the month in days
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*/
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@Override
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public int lengthOfMonth() {
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return chrono.getMonthLength(prolepticYear, monthOfYear);
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}
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/**
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* Returns the length of the year represented by this date.
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* <p>
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* This returns the length of the year in days.
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* A Hijrah calendar system year is typically shorter than
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* that of the ISO calendar system.
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*
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* @return the length of the year in days
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*/
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@Override
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public int lengthOfYear() {
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return chrono.getYearLength(prolepticYear);
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}
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//-----------------------------------------------------------------------
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@Override
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public ValueRange range(TemporalField field) {
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if (field instanceof ChronoField) {
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if (isSupported(field)) {
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ChronoField f = (ChronoField) field;
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switch (f) {
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case DAY_OF_MONTH: return ValueRange.of(1, lengthOfMonth());
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case DAY_OF_YEAR: return ValueRange.of(1, lengthOfYear());
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case ALIGNED_WEEK_OF_MONTH: return ValueRange.of(1, 5); // TODO
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// TODO does the limited range of valid years cause years to
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|
// start/end part way through? that would affect range
|
||
|
|
}
|
||
|
|
return getChronology().range(f);
|
||
|
|
}
|
||
|
|
throw new UnsupportedTemporalTypeException("Unsupported field: " + field);
|
||
|
|
}
|
||
|
|
return field.rangeRefinedBy(this);
|
||
|
|
}
|
||
|
|
|
||
|
|
@Override
|
||
|
|
public long getLong(TemporalField field) {
|
||
|
|
if (field instanceof ChronoField) {
|
||
|
|
switch ((ChronoField) field) {
|
||
|
|
case DAY_OF_WEEK: return getDayOfWeek();
|
||
|
|
case ALIGNED_DAY_OF_WEEK_IN_MONTH: return ((dayOfMonth - 1) % 7) + 1;
|
||
|
|
case ALIGNED_DAY_OF_WEEK_IN_YEAR: return ((getDayOfYear() - 1) % 7) + 1;
|
||
|
|
case DAY_OF_MONTH: return this.dayOfMonth;
|
||
|
|
case DAY_OF_YEAR: return this.getDayOfYear();
|
||
|
|
case EPOCH_DAY: return toEpochDay();
|
||
|
|
case ALIGNED_WEEK_OF_MONTH: return ((dayOfMonth - 1) / 7) + 1;
|
||
|
|
case ALIGNED_WEEK_OF_YEAR: return ((getDayOfYear() - 1) / 7) + 1;
|
||
|
|
case MONTH_OF_YEAR: return monthOfYear;
|
||
|
|
case PROLEPTIC_MONTH: return getProlepticMonth();
|
||
|
|
case YEAR_OF_ERA: return prolepticYear;
|
||
|
|
case YEAR: return prolepticYear;
|
||
|
|
case ERA: return getEraValue();
|
||
|
|
}
|
||
|
|
throw new UnsupportedTemporalTypeException("Unsupported field: " + field);
|
||
|
|
}
|
||
|
|
return field.getFrom(this);
|
||
|
|
}
|
||
|
|
|
||
|
|
private long getProlepticMonth() {
|
||
|
|
return prolepticYear * 12L + monthOfYear - 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
@Override
|
||
|
|
public HijrahDate with(TemporalField field, long newValue) {
|
||
|
|
if (field instanceof ChronoField chronoField) {
|
||
|
|
// not using checkValidIntValue so EPOCH_DAY and PROLEPTIC_MONTH work
|
||
|
|
chrono.range(chronoField).checkValidValue(newValue, chronoField); // TODO: validate value
|
||
|
|
int nvalue = (int) newValue;
|
||
|
|
switch (chronoField) {
|
||
|
|
case DAY_OF_WEEK: return plusDays(newValue - getDayOfWeek());
|
||
|
|
case ALIGNED_DAY_OF_WEEK_IN_MONTH: return plusDays(newValue - getLong(ALIGNED_DAY_OF_WEEK_IN_MONTH));
|
||
|
|
case ALIGNED_DAY_OF_WEEK_IN_YEAR: return plusDays(newValue - getLong(ALIGNED_DAY_OF_WEEK_IN_YEAR));
|
||
|
|
case DAY_OF_MONTH: return resolvePreviousValid(prolepticYear, monthOfYear, nvalue);
|
||
|
|
case DAY_OF_YEAR: return plusDays(Math.min(nvalue, lengthOfYear()) - getDayOfYear());
|
||
|
|
case EPOCH_DAY: return new HijrahDate(chrono, newValue);
|
||
|
|
case ALIGNED_WEEK_OF_MONTH: return plusDays((newValue - getLong(ALIGNED_WEEK_OF_MONTH)) * 7);
|
||
|
|
case ALIGNED_WEEK_OF_YEAR: return plusDays((newValue - getLong(ALIGNED_WEEK_OF_YEAR)) * 7);
|
||
|
|
case MONTH_OF_YEAR: return resolvePreviousValid(prolepticYear, nvalue, dayOfMonth);
|
||
|
|
case PROLEPTIC_MONTH: return plusMonths(newValue - getProlepticMonth());
|
||
|
|
case YEAR_OF_ERA: return resolvePreviousValid(prolepticYear >= 1 ? nvalue : 1 - nvalue, monthOfYear, dayOfMonth);
|
||
|
|
case YEAR: return resolvePreviousValid(nvalue, monthOfYear, dayOfMonth);
|
||
|
|
case ERA: return resolvePreviousValid(1 - prolepticYear, monthOfYear, dayOfMonth);
|
||
|
|
}
|
||
|
|
throw new UnsupportedTemporalTypeException("Unsupported field: " + field);
|
||
|
|
}
|
||
|
|
return super.with(field, newValue);
|
||
|
|
}
|
||
|
|
|
||
|
|
private HijrahDate resolvePreviousValid(int prolepticYear, int month, int day) {
|
||
|
|
int monthDays = chrono.getMonthLength(prolepticYear, month);
|
||
|
|
if (day > monthDays) {
|
||
|
|
day = monthDays;
|
||
|
|
}
|
||
|
|
return HijrahDate.of(chrono, prolepticYear, month, day);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* {@inheritDoc}
|
||
|
|
* @throws DateTimeException if unable to make the adjustment.
|
||
|
|
* For example, if the adjuster requires an ISO chronology
|
||
|
|
* @throws ArithmeticException {@inheritDoc}
|
||
|
|
*/
|
||
|
|
@Override
|
||
|
|
public HijrahDate with(TemporalAdjuster adjuster) {
|
||
|
|
return super.with(adjuster);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns a {@code HijrahDate} with the Chronology requested.
|
||
|
|
* <p>
|
||
|
|
* The year, month, and day are checked against the new requested
|
||
|
|
* HijrahChronology. If the chronology has a shorter month length
|
||
|
|
* for the month, the day is reduced to be the last day of the month.
|
||
|
|
*
|
||
|
|
* @param chronology the new HijrahChonology, non-null
|
||
|
|
* @return a HijrahDate with the requested HijrahChronology, non-null
|
||
|
|
*/
|
||
|
|
public HijrahDate withVariant(HijrahChronology chronology) {
|
||
|
|
if (chrono == chronology) {
|
||
|
|
return this;
|
||
|
|
}
|
||
|
|
// Like resolvePreviousValid the day is constrained to stay in the same month
|
||
|
|
int monthDays = chronology.getDayOfYear(prolepticYear, monthOfYear);
|
||
|
|
return HijrahDate.of(chronology, prolepticYear, monthOfYear,(dayOfMonth > monthDays) ? monthDays : dayOfMonth );
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* {@inheritDoc}
|
||
|
|
* @throws DateTimeException {@inheritDoc}
|
||
|
|
* @throws ArithmeticException {@inheritDoc}
|
||
|
|
*/
|
||
|
|
@Override
|
||
|
|
public HijrahDate plus(TemporalAmount amount) {
|
||
|
|
return super.plus(amount);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* {@inheritDoc}
|
||
|
|
* @throws DateTimeException {@inheritDoc}
|
||
|
|
* @throws ArithmeticException {@inheritDoc}
|
||
|
|
*/
|
||
|
|
@Override
|
||
|
|
public HijrahDate minus(TemporalAmount amount) {
|
||
|
|
return super.minus(amount);
|
||
|
|
}
|
||
|
|
|
||
|
|
@Override
|
||
|
|
public long toEpochDay() {
|
||
|
|
return chrono.getEpochDay(prolepticYear, monthOfYear, dayOfMonth);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 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
|
||
|
|
*/
|
||
|
|
private int getDayOfYear() {
|
||
|
|
return chrono.getDayOfYear(prolepticYear, monthOfYear) + dayOfMonth;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Gets the day-of-week value.
|
||
|
|
*
|
||
|
|
* @return the day-of-week; computed from the epochday
|
||
|
|
*/
|
||
|
|
private int getDayOfWeek() {
|
||
|
|
int dow0 = Math.floorMod(toEpochDay() + 3, 7);
|
||
|
|
return dow0 + 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Gets the Era of this date.
|
||
|
|
*
|
||
|
|
* @return the Era of this date; computed from epochDay
|
||
|
|
*/
|
||
|
|
private int getEraValue() {
|
||
|
|
return (prolepticYear > 1 ? 1 : 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------
|
||
|
|
/**
|
||
|
|
* Checks if the year is a leap year, according to the Hijrah calendar system rules.
|
||
|
|
*
|
||
|
|
* @return true if this date is in a leap year
|
||
|
|
*/
|
||
|
|
@Override
|
||
|
|
public boolean isLeapYear() {
|
||
|
|
return chrono.isLeapYear(prolepticYear);
|
||
|
|
}
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------
|
||
|
|
@Override
|
||
|
|
HijrahDate plusYears(long years) {
|
||
|
|
if (years == 0) {
|
||
|
|
return this;
|
||
|
|
}
|
||
|
|
int newYear = Math.addExact(this.prolepticYear, (int)years);
|
||
|
|
return resolvePreviousValid(newYear, monthOfYear, dayOfMonth);
|
||
|
|
}
|
||
|
|
|
||
|
|
@Override
|
||
|
|
HijrahDate plusMonths(long monthsToAdd) {
|
||
|
|
if (monthsToAdd == 0) {
|
||
|
|
return this;
|
||
|
|
}
|
||
|
|
long monthCount = prolepticYear * 12L + (monthOfYear - 1);
|
||
|
|
long calcMonths = monthCount + monthsToAdd; // safe overflow
|
||
|
|
int newYear = chrono.checkValidYear(Math.floorDiv(calcMonths, 12L));
|
||
|
|
int newMonth = (int)Math.floorMod(calcMonths, 12L) + 1;
|
||
|
|
return resolvePreviousValid(newYear, newMonth, dayOfMonth);
|
||
|
|
}
|
||
|
|
|
||
|
|
@Override
|
||
|
|
HijrahDate plusWeeks(long weeksToAdd) {
|
||
|
|
return super.plusWeeks(weeksToAdd);
|
||
|
|
}
|
||
|
|
|
||
|
|
@Override
|
||
|
|
HijrahDate plusDays(long days) {
|
||
|
|
return new HijrahDate(chrono, toEpochDay() + days);
|
||
|
|
}
|
||
|
|
|
||
|
|
@Override
|
||
|
|
public HijrahDate plus(long amountToAdd, TemporalUnit unit) {
|
||
|
|
return super.plus(amountToAdd, unit);
|
||
|
|
}
|
||
|
|
|
||
|
|
@Override
|
||
|
|
public HijrahDate minus(long amountToSubtract, TemporalUnit unit) {
|
||
|
|
return super.minus(amountToSubtract, unit);
|
||
|
|
}
|
||
|
|
|
||
|
|
@Override
|
||
|
|
HijrahDate minusYears(long yearsToSubtract) {
|
||
|
|
return super.minusYears(yearsToSubtract);
|
||
|
|
}
|
||
|
|
|
||
|
|
@Override
|
||
|
|
HijrahDate minusMonths(long monthsToSubtract) {
|
||
|
|
return super.minusMonths(monthsToSubtract);
|
||
|
|
}
|
||
|
|
|
||
|
|
@Override
|
||
|
|
HijrahDate minusWeeks(long weeksToSubtract) {
|
||
|
|
return super.minusWeeks(weeksToSubtract);
|
||
|
|
}
|
||
|
|
|
||
|
|
@Override
|
||
|
|
HijrahDate minusDays(long daysToSubtract) {
|
||
|
|
return super.minusDays(daysToSubtract);
|
||
|
|
}
|
||
|
|
|
||
|
|
@Override // for javadoc and covariant return type
|
||
|
|
@SuppressWarnings("unchecked")
|
||
|
|
public final ChronoLocalDateTime<HijrahDate> atTime(LocalTime localTime) {
|
||
|
|
return (ChronoLocalDateTime<HijrahDate>)super.atTime(localTime);
|
||
|
|
}
|
||
|
|
|
||
|
|
@Override
|
||
|
|
public ChronoPeriod until(ChronoLocalDate endDate) {
|
||
|
|
// TODO: untested
|
||
|
|
HijrahDate end = getChronology().date(endDate);
|
||
|
|
long totalMonths = (end.prolepticYear - this.prolepticYear) * 12 + (end.monthOfYear - this.monthOfYear); // safe
|
||
|
|
int days = end.dayOfMonth - this.dayOfMonth;
|
||
|
|
if (totalMonths > 0 && days < 0) {
|
||
|
|
totalMonths--;
|
||
|
|
HijrahDate calcDate = this.plusMonths(totalMonths);
|
||
|
|
days = (int) (end.toEpochDay() - calcDate.toEpochDay()); // safe
|
||
|
|
} else if (totalMonths < 0 && days > 0) {
|
||
|
|
totalMonths++;
|
||
|
|
days -= end.lengthOfMonth();
|
||
|
|
}
|
||
|
|
long years = totalMonths / 12; // safe
|
||
|
|
int months = (int) (totalMonths % 12); // safe
|
||
|
|
return getChronology().period(Math.toIntExact(years), months, days);
|
||
|
|
}
|
||
|
|
|
||
|
|
//-------------------------------------------------------------------------
|
||
|
|
/**
|
||
|
|
* Compares this date to another date, including the chronology.
|
||
|
|
* <p>
|
||
|
|
* Compares this {@code HijrahDate} with another ensuring that the date is the same.
|
||
|
|
* <p>
|
||
|
|
* Only objects of type {@code HijrahDate} are compared, other types return false.
|
||
|
|
* To compare the dates of two {@code TemporalAccessor} instances, including dates
|
||
|
|
* in two different chronologies, use {@link ChronoField#EPOCH_DAY} as a comparator.
|
||
|
|
*
|
||
|
|
* @param obj the object to check, null returns false
|
||
|
|
* @return true if this is equal to the other date and the Chronologies are equal
|
||
|
|
*/
|
||
|
|
@Override // override for performance
|
||
|
|
public boolean equals(Object obj) {
|
||
|
|
if (this == obj) {
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
return (obj instanceof HijrahDate otherDate)
|
||
|
|
&& prolepticYear == otherDate.prolepticYear
|
||
|
|
&& this.monthOfYear == otherDate.monthOfYear
|
||
|
|
&& this.dayOfMonth == otherDate.dayOfMonth
|
||
|
|
&& getChronology().equals(otherDate.getChronology());
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* A hash code for this date.
|
||
|
|
*
|
||
|
|
* @return a suitable hash code based only on the Chronology and the date
|
||
|
|
*/
|
||
|
|
@Override // override for performance
|
||
|
|
public int hashCode() {
|
||
|
|
int yearValue = prolepticYear;
|
||
|
|
int monthValue = monthOfYear;
|
||
|
|
int dayValue = dayOfMonth;
|
||
|
|
return getChronology().getId().hashCode() ^ (yearValue & 0xFFFFF800)
|
||
|
|
^ ((yearValue << 11) + (monthValue << 6) + (dayValue));
|
||
|
|
}
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------------
|
||
|
|
/**
|
||
|
|
* Defend against malicious streams.
|
||
|
|
*
|
||
|
|
* @param s the stream to read
|
||
|
|
* @throws InvalidObjectException always
|
||
|
|
*/
|
||
|
|
@java.io.Serial
|
||
|
|
private void readObject(ObjectInputStream s) throws InvalidObjectException {
|
||
|
|
throw new InvalidObjectException("Deserialization via serialization delegate");
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Writes the object using a
|
||
|
|
* <a href="{@docRoot}/serialized-form.html#java.time.chrono.Ser">dedicated serialized form</a>.
|
||
|
|
* @serialData
|
||
|
|
* <pre>
|
||
|
|
* out.writeByte(6); // identifies a HijrahDate
|
||
|
|
* out.writeObject(chrono); // the HijrahChronology variant
|
||
|
|
* out.writeInt(get(YEAR));
|
||
|
|
* out.writeByte(get(MONTH_OF_YEAR));
|
||
|
|
* out.writeByte(get(DAY_OF_MONTH));
|
||
|
|
* </pre>
|
||
|
|
*
|
||
|
|
* @return the instance of {@code Ser}, not null
|
||
|
|
*/
|
||
|
|
@java.io.Serial
|
||
|
|
private Object writeReplace() {
|
||
|
|
return new Ser(Ser.HIJRAH_DATE_TYPE, this);
|
||
|
|
}
|
||
|
|
|
||
|
|
void writeExternal(ObjectOutput out) throws IOException {
|
||
|
|
// HijrahChronology is implicit in the Hijrah_DATE_TYPE
|
||
|
|
out.writeObject(getChronology());
|
||
|
|
out.writeInt(get(YEAR));
|
||
|
|
out.writeByte(get(MONTH_OF_YEAR));
|
||
|
|
out.writeByte(get(DAY_OF_MONTH));
|
||
|
|
}
|
||
|
|
|
||
|
|
static HijrahDate readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
|
||
|
|
HijrahChronology chrono = (HijrahChronology) in.readObject();
|
||
|
|
int year = in.readInt();
|
||
|
|
int month = in.readByte();
|
||
|
|
int dayOfMonth = in.readByte();
|
||
|
|
return chrono.date(year, month, dayOfMonth);
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|