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/*
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* Copyright (c) 2012, 2013, 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.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.DataInput;
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import java.io.DataOutput;
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import java.io.IOException;
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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.Period;
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import java.time.Year;
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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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import java.util.Calendar;
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import java.util.Objects;
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import sun.util.calendar.CalendarDate;
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import sun.util.calendar.LocalGregorianCalendar;
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/**
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* A date in the Japanese Imperial calendar system.
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* <p>
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* This date operates using the {@linkplain JapaneseChronology Japanese Imperial calendar}.
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* This calendar system is primarily used in Japan.
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* <p>
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* The Japanese Imperial calendar system is the same as the ISO calendar system
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* apart from the era-based year numbering. The proleptic-year is defined to be
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* equal to the ISO proleptic-year.
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* <p>
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* For example, the Japanese year "Heisei 24" corresponds to ISO year "2012".<br>
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* Calling {@code japaneseDate.get(YEAR_OF_ERA)} will return 24.<br>
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* Calling {@code japaneseDate.get(YEAR)} will return 2012.<br>
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* Calling {@code japaneseDate.get(ERA)} will return 2, corresponding to
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* {@code JapaneseChronology.ERA_HEISEI}.<br>
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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 JapaneseDate
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extends ChronoDateImpl<JapaneseDate>
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implements ChronoLocalDate<JapaneseDate>, Serializable {
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/**
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* Serialization version.
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*/
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private static final long serialVersionUID = -305327627230580483L;
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/**
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* The underlying ISO local date.
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*/
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private transient final LocalDate isoDate;
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/**
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* The JapaneseEra of this date.
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*/
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private transient JapaneseEra era;
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/**
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* The Japanese imperial calendar year of this date.
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*/
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private transient int yearOfEra;
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//-----------------------------------------------------------------------
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/**
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* Obtains the current {@code JapaneseDate} from the system clock 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 JapaneseDate 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 JapaneseDate} from the system clock 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 JapaneseDate 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 JapaneseDate} 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 JapaneseDate now(Clock clock) {
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return JapaneseChronology.INSTANCE.date(LocalDate.now(clock));
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}
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/**
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* Obtains a {@code JapaneseDate} representing a date in the Japanese calendar
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* system from the era, year-of-era, month-of-year and day-of-month fields.
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* <p>
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* This returns a {@code JapaneseDate} 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 era the Japanese era, not null
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* @param yearOfEra the Japanese year-of-era
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* @param month the Japanese month-of-year, from 1 to 12
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* @param dayOfMonth the Japanese day-of-month, from 1 to 31
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* @return the date in Japanese 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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* or if the date is not a Japanese era
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*/
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public static JapaneseDate of(Era era, int yearOfEra, int month, int dayOfMonth) {
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if (era instanceof JapaneseEra == false) {
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throw new ClassCastException("Era must be JapaneseEra");
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}
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return JapaneseDate.of((JapaneseEra) era, yearOfEra, month, dayOfMonth);
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}
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/**
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* Obtains a {@code JapaneseDate} representing a date in the Japanese calendar
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* system 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 JapaneseDate} 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 Japanese proleptic-year
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* @param month the Japanese month-of-year, from 1 to 12
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* @param dayOfMonth the Japanese day-of-month, from 1 to 31
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* @return the date in Japanese 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 JapaneseDate of(int prolepticYear, int month, int dayOfMonth) {
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return new JapaneseDate(LocalDate.of(prolepticYear, month, dayOfMonth));
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}
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/**
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* Obtains a {@code JapaneseDate} representing a date in the Japanese calendar
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* system from the proleptic-year and day-of-year fields.
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* <p>
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* This returns a {@code JapaneseDate} with the specified fields.
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* The day must be valid for the year, otherwise an exception will be thrown.
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*
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* @param prolepticYear the chronology proleptic-year
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* @param dayOfYear the chronology day-of-year, from 1 to 366
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* @return the date in Japanese 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-year is invalid for the year
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*/
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public static JapaneseDate ofYearDay(int prolepticYear, int dayOfYear) {
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LocalDate date = LocalDate.ofYearDay(prolepticYear, dayOfYear);
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return of(prolepticYear, date.getMonthValue(), date.getDayOfMonth());
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}
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static JapaneseDate ofYearDay(JapaneseEra era, int yearOfEra, int dayOfYear) {
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CalendarDate firstDay = era.getPrivateEra().getSinceDate();
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LocalGregorianCalendar.Date jdate = JapaneseChronology.JCAL.newCalendarDate(null);
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jdate.setEra(era.getPrivateEra());
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if (yearOfEra == 1) {
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jdate.setDate(yearOfEra, firstDay.getMonth(), firstDay.getDayOfMonth() + dayOfYear - 1);
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} else {
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jdate.setDate(yearOfEra, 1, dayOfYear);
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}
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JapaneseChronology.JCAL.normalize(jdate);
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if (era.getPrivateEra() != jdate.getEra() || yearOfEra != jdate.getYear()) {
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throw new DateTimeException("Invalid parameters");
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}
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LocalDate localdate = LocalDate.of(jdate.getNormalizedYear(),
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jdate.getMonth(), jdate.getDayOfMonth());
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return new JapaneseDate(era, yearOfEra, localdate);
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}
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/**
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* Obtains a {@code JapaneseDate} representing a date in the Japanese calendar
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* system from the era, year-of-era, month-of-year and day-of-month fields.
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* <p>
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* This returns a {@code JapaneseDate} 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 era the Japanese era, not null
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* @param yearOfEra the Japanese year-of-era
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* @param month the Japanese month-of-year, from 1 to 12
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* @param dayOfMonth the Japanese day-of-month, from 1 to 31
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* @return the date in Japanese 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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static JapaneseDate of(JapaneseEra era, int yearOfEra, int month, int dayOfMonth) {
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Objects.requireNonNull(era, "era");
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LocalGregorianCalendar.Date jdate = JapaneseChronology.JCAL.newCalendarDate(null);
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jdate.setEra(era.getPrivateEra()).setDate(yearOfEra, month, dayOfMonth);
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if (!JapaneseChronology.JCAL.validate(jdate)) {
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throw new DateTimeException("year, month, and day not valid for Era");
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}
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LocalDate date = LocalDate.of(jdate.getNormalizedYear(), month, dayOfMonth);
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return new JapaneseDate(era, yearOfEra, date);
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}
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/**
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* Obtains a {@code JapaneseDate} from a temporal object.
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* <p>
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* This obtains a date in the Japanese 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 JapaneseDate}.
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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 JapaneseDate::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 Japanese calendar system, not null
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* @throws DateTimeException if unable to convert to a {@code JapaneseDate}
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*/
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public static JapaneseDate from(TemporalAccessor temporal) {
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return JapaneseChronology.INSTANCE.date(temporal);
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}
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//-----------------------------------------------------------------------
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/**
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* Creates an instance from an ISO date.
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*
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* @param isoDate the standard local date, validated not null
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*/
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JapaneseDate(LocalDate isoDate) {
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LocalGregorianCalendar.Date jdate = toPrivateJapaneseDate(isoDate);
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this.era = JapaneseEra.toJapaneseEra(jdate.getEra());
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this.yearOfEra = jdate.getYear();
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this.isoDate = isoDate;
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}
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/**
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* Constructs a {@code JapaneseDate}. This constructor does NOT validate the given parameters,
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* and {@code era} and {@code year} must agree with {@code isoDate}.
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*
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* @param era the era, validated not null
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* @param year the year-of-era, validated
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* @param isoDate the standard local date, validated not null
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*/
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JapaneseDate(JapaneseEra era, int year, LocalDate isoDate) {
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this.era = era;
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this.yearOfEra = year;
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this.isoDate = isoDate;
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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 Japanese 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 Japanese chronology, not null
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*/
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@Override
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public JapaneseChronology getChronology() {
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return JapaneseChronology.INSTANCE;
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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 Japanese calendar system has multiple eras defined by {@link JapaneseEra}.
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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 JapaneseEra getEra() {
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return era;
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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 match those of the ISO calendar system.
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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 isoDate.lengthOfMonth();
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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:
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case ALIGNED_WEEK_OF_MONTH:
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return isoDate.range(field);
|
15658
|
379 |
case DAY_OF_YEAR:
|
|
380 |
return actualRange(Calendar.DAY_OF_YEAR);
|
|
381 |
case YEAR_OF_ERA:
|
|
382 |
return actualRange(Calendar.YEAR);
|
|
383 |
}
|
|
384 |
return getChronology().range(f);
|
|
385 |
}
|
16852
|
386 |
throw new UnsupportedTemporalTypeException("Unsupported field: " + field.getName());
|
15658
|
387 |
}
|
|
388 |
return field.rangeRefinedBy(this);
|
|
389 |
}
|
|
390 |
|
|
391 |
private ValueRange actualRange(int calendarField) {
|
|
392 |
Calendar jcal = Calendar.getInstance(JapaneseChronology.LOCALE);
|
16852
|
393 |
jcal.set(Calendar.ERA, era.getValue() + JapaneseEra.ERA_OFFSET); // TODO: cannot calculate this way for SEIREKI
|
15658
|
394 |
jcal.set(yearOfEra, isoDate.getMonthValue() - 1, isoDate.getDayOfMonth());
|
|
395 |
return ValueRange.of(jcal.getActualMinimum(calendarField),
|
|
396 |
jcal.getActualMaximum(calendarField));
|
|
397 |
}
|
|
398 |
|
|
399 |
@Override
|
|
400 |
public long getLong(TemporalField field) {
|
|
401 |
if (field instanceof ChronoField) {
|
16852
|
402 |
// same as ISO:
|
|
403 |
// DAY_OF_WEEK, ALIGNED_DAY_OF_WEEK_IN_MONTH, DAY_OF_MONTH, EPOCH_DAY,
|
|
404 |
// ALIGNED_WEEK_OF_MONTH, MONTH_OF_YEAR, PROLEPTIC_MONTH, YEAR
|
|
405 |
//
|
|
406 |
// calendar specific fields
|
|
407 |
// ALIGNED_DAY_OF_WEEK_IN_YEAR, DAY_OF_YEAR, ALIGNED_WEEK_OF_YEAR, YEAR_OF_ERA, ERA
|
15658
|
408 |
switch ((ChronoField) field) {
|
|
409 |
case YEAR_OF_ERA:
|
|
410 |
return yearOfEra;
|
|
411 |
case ERA:
|
|
412 |
return era.getValue();
|
|
413 |
case DAY_OF_YEAR: {
|
|
414 |
LocalGregorianCalendar.Date jdate = toPrivateJapaneseDate(isoDate);
|
|
415 |
return JapaneseChronology.JCAL.getDayOfYear(jdate);
|
|
416 |
}
|
16852
|
417 |
// TODO: ALIGNED_DAY_OF_WEEK_IN_YEAR and ALIGNED_WEEK_OF_YEAR ???
|
15658
|
418 |
}
|
|
419 |
return isoDate.getLong(field);
|
|
420 |
}
|
|
421 |
return field.getFrom(this);
|
|
422 |
}
|
|
423 |
|
|
424 |
/**
|
|
425 |
* Returns a {@code LocalGregorianCalendar.Date} converted from the given {@code isoDate}.
|
|
426 |
*
|
|
427 |
* @param isoDate the local date, not null
|
|
428 |
* @return a {@code LocalGregorianCalendar.Date}, not null
|
|
429 |
*/
|
|
430 |
private static LocalGregorianCalendar.Date toPrivateJapaneseDate(LocalDate isoDate) {
|
|
431 |
LocalGregorianCalendar.Date jdate = JapaneseChronology.JCAL.newCalendarDate(null);
|
|
432 |
sun.util.calendar.Era sunEra = JapaneseEra.privateEraFrom(isoDate);
|
|
433 |
int year = isoDate.getYear();
|
|
434 |
if (sunEra != null) {
|
|
435 |
year -= sunEra.getSinceDate().getYear() - 1;
|
|
436 |
}
|
|
437 |
jdate.setEra(sunEra).setYear(year).setMonth(isoDate.getMonthValue()).setDayOfMonth(isoDate.getDayOfMonth());
|
|
438 |
JapaneseChronology.JCAL.normalize(jdate);
|
|
439 |
return jdate;
|
|
440 |
}
|
|
441 |
|
|
442 |
//-----------------------------------------------------------------------
|
|
443 |
@Override
|
|
444 |
public JapaneseDate with(TemporalField field, long newValue) {
|
|
445 |
if (field instanceof ChronoField) {
|
|
446 |
ChronoField f = (ChronoField) field;
|
|
447 |
if (getLong(f) == newValue) {
|
|
448 |
return this;
|
|
449 |
}
|
|
450 |
switch (f) {
|
|
451 |
case YEAR_OF_ERA:
|
|
452 |
case YEAR:
|
|
453 |
case ERA: {
|
16852
|
454 |
int nvalue = getChronology().range(f).checkValidIntValue(newValue, f);
|
15658
|
455 |
switch (f) {
|
|
456 |
case YEAR_OF_ERA:
|
|
457 |
return this.withYear(nvalue);
|
|
458 |
case YEAR:
|
|
459 |
return with(isoDate.withYear(nvalue));
|
|
460 |
case ERA: {
|
|
461 |
return this.withYear(JapaneseEra.of(nvalue), yearOfEra);
|
|
462 |
}
|
|
463 |
}
|
|
464 |
}
|
|
465 |
}
|
16852
|
466 |
// YEAR, PROLEPTIC_MONTH and others are same as ISO
|
15658
|
467 |
// TODO: review other fields, such as WEEK_OF_YEAR
|
|
468 |
return with(isoDate.with(field, newValue));
|
|
469 |
}
|
16852
|
470 |
return ChronoLocalDate.super.with(field, newValue);
|
15658
|
471 |
}
|
|
472 |
|
|
473 |
/**
|
|
474 |
* {@inheritDoc}
|
|
475 |
* @throws DateTimeException {@inheritDoc}
|
|
476 |
* @throws ArithmeticException {@inheritDoc}
|
|
477 |
*/
|
|
478 |
@Override
|
|
479 |
public JapaneseDate with(TemporalAdjuster adjuster) {
|
16852
|
480 |
return super.with(adjuster);
|
15658
|
481 |
}
|
|
482 |
|
|
483 |
/**
|
|
484 |
* {@inheritDoc}
|
|
485 |
* @throws DateTimeException {@inheritDoc}
|
|
486 |
* @throws ArithmeticException {@inheritDoc}
|
|
487 |
*/
|
|
488 |
@Override
|
|
489 |
public JapaneseDate plus(TemporalAmount amount) {
|
16852
|
490 |
return super.plus(amount);
|
15658
|
491 |
}
|
|
492 |
|
|
493 |
/**
|
|
494 |
* {@inheritDoc}
|
|
495 |
* @throws DateTimeException {@inheritDoc}
|
|
496 |
* @throws ArithmeticException {@inheritDoc}
|
|
497 |
*/
|
|
498 |
@Override
|
|
499 |
public JapaneseDate minus(TemporalAmount amount) {
|
16852
|
500 |
return super.minus(amount);
|
15658
|
501 |
}
|
|
502 |
//-----------------------------------------------------------------------
|
|
503 |
/**
|
|
504 |
* Returns a copy of this date with the year altered.
|
|
505 |
* <p>
|
|
506 |
* This method changes the year of the date.
|
|
507 |
* If the month-day is invalid for the year, then the previous valid day
|
|
508 |
* will be selected instead.
|
|
509 |
* <p>
|
|
510 |
* This instance is immutable and unaffected by this method call.
|
|
511 |
*
|
|
512 |
* @param era the era to set in the result, not null
|
|
513 |
* @param yearOfEra the year-of-era to set in the returned date
|
|
514 |
* @return a {@code JapaneseDate} based on this date with the requested year, never null
|
|
515 |
* @throws DateTimeException if {@code year} is invalid
|
|
516 |
*/
|
|
517 |
private JapaneseDate withYear(JapaneseEra era, int yearOfEra) {
|
|
518 |
int year = JapaneseChronology.INSTANCE.prolepticYear(era, yearOfEra);
|
|
519 |
return with(isoDate.withYear(year));
|
|
520 |
}
|
|
521 |
|
|
522 |
/**
|
|
523 |
* Returns a copy of this date with the year-of-era altered.
|
|
524 |
* <p>
|
|
525 |
* This method changes the year-of-era of the date.
|
|
526 |
* If the month-day is invalid for the year, then the previous valid day
|
|
527 |
* will be selected instead.
|
|
528 |
* <p>
|
|
529 |
* This instance is immutable and unaffected by this method call.
|
|
530 |
*
|
|
531 |
* @param year the year to set in the returned date
|
|
532 |
* @return a {@code JapaneseDate} based on this date with the requested year-of-era, never null
|
|
533 |
* @throws DateTimeException if {@code year} is invalid
|
|
534 |
*/
|
|
535 |
private JapaneseDate withYear(int year) {
|
16852
|
536 |
return withYear(getEra(), year);
|
15658
|
537 |
}
|
|
538 |
|
|
539 |
//-----------------------------------------------------------------------
|
|
540 |
@Override
|
|
541 |
JapaneseDate plusYears(long years) {
|
|
542 |
return with(isoDate.plusYears(years));
|
|
543 |
}
|
|
544 |
|
|
545 |
@Override
|
|
546 |
JapaneseDate plusMonths(long months) {
|
|
547 |
return with(isoDate.plusMonths(months));
|
|
548 |
}
|
|
549 |
|
|
550 |
@Override
|
|
551 |
JapaneseDate plusWeeks(long weeksToAdd) {
|
|
552 |
return with(isoDate.plusWeeks(weeksToAdd));
|
|
553 |
}
|
|
554 |
|
|
555 |
@Override
|
|
556 |
JapaneseDate plusDays(long days) {
|
|
557 |
return with(isoDate.plusDays(days));
|
|
558 |
}
|
|
559 |
|
|
560 |
@Override
|
|
561 |
public JapaneseDate plus(long amountToAdd, TemporalUnit unit) {
|
16852
|
562 |
return super.plus(amountToAdd, unit);
|
15658
|
563 |
}
|
|
564 |
|
|
565 |
@Override
|
|
566 |
public JapaneseDate minus(long amountToAdd, TemporalUnit unit) {
|
16852
|
567 |
return super.minus(amountToAdd, unit);
|
15658
|
568 |
}
|
|
569 |
|
|
570 |
@Override
|
|
571 |
JapaneseDate minusYears(long yearsToSubtract) {
|
16852
|
572 |
return super.minusYears(yearsToSubtract);
|
15658
|
573 |
}
|
|
574 |
|
|
575 |
@Override
|
|
576 |
JapaneseDate minusMonths(long monthsToSubtract) {
|
16852
|
577 |
return super.minusMonths(monthsToSubtract);
|
15658
|
578 |
}
|
|
579 |
|
|
580 |
@Override
|
|
581 |
JapaneseDate minusWeeks(long weeksToSubtract) {
|
16852
|
582 |
return super.minusWeeks(weeksToSubtract);
|
15658
|
583 |
}
|
|
584 |
|
|
585 |
@Override
|
|
586 |
JapaneseDate minusDays(long daysToSubtract) {
|
16852
|
587 |
return super.minusDays(daysToSubtract);
|
15658
|
588 |
}
|
|
589 |
|
|
590 |
private JapaneseDate with(LocalDate newDate) {
|
|
591 |
return (newDate.equals(isoDate) ? this : new JapaneseDate(newDate));
|
|
592 |
}
|
|
593 |
|
|
594 |
@Override // for javadoc and covariant return type
|
|
595 |
public final ChronoLocalDateTime<JapaneseDate> atTime(LocalTime localTime) {
|
16852
|
596 |
return super.atTime(localTime);
|
15658
|
597 |
}
|
|
598 |
|
|
599 |
@Override
|
|
600 |
public Period periodUntil(ChronoLocalDate<?> endDate) {
|
|
601 |
return isoDate.periodUntil(endDate);
|
|
602 |
}
|
|
603 |
|
|
604 |
@Override // override for performance
|
|
605 |
public long toEpochDay() {
|
|
606 |
return isoDate.toEpochDay();
|
|
607 |
}
|
|
608 |
|
|
609 |
//-------------------------------------------------------------------------
|
|
610 |
@Override // override for performance
|
|
611 |
public boolean equals(Object obj) {
|
|
612 |
if (this == obj) {
|
|
613 |
return true;
|
|
614 |
}
|
|
615 |
if (obj instanceof JapaneseDate) {
|
|
616 |
JapaneseDate otherDate = (JapaneseDate) obj;
|
|
617 |
return this.isoDate.equals(otherDate.isoDate);
|
|
618 |
}
|
|
619 |
return false;
|
|
620 |
}
|
|
621 |
|
|
622 |
@Override // override for performance
|
|
623 |
public int hashCode() {
|
|
624 |
return getChronology().getId().hashCode() ^ isoDate.hashCode();
|
|
625 |
}
|
|
626 |
|
|
627 |
@Override
|
|
628 |
public String toString() {
|
|
629 |
if (era == JapaneseEra.SEIREKI) {
|
|
630 |
return getChronology().getId() + " " + isoDate.toString();
|
|
631 |
}
|
|
632 |
return super.toString();
|
|
633 |
}
|
|
634 |
|
|
635 |
//-----------------------------------------------------------------------
|
|
636 |
private Object writeReplace() {
|
|
637 |
return new Ser(Ser.JAPANESE_DATE_TYPE, this);
|
|
638 |
}
|
|
639 |
|
|
640 |
void writeExternal(DataOutput out) throws IOException {
|
|
641 |
// JapaneseChronology is implicit in the JAPANESE_DATE_TYPE
|
|
642 |
out.writeInt(get(YEAR));
|
|
643 |
out.writeByte(get(MONTH_OF_YEAR));
|
|
644 |
out.writeByte(get(DAY_OF_MONTH));
|
|
645 |
}
|
|
646 |
|
|
647 |
static JapaneseDate readExternal(DataInput in) throws IOException {
|
|
648 |
int year = in.readInt();
|
|
649 |
int month = in.readByte();
|
|
650 |
int dayOfMonth = in.readByte();
|
|
651 |
return JapaneseChronology.INSTANCE.date(year, month, dayOfMonth);
|
|
652 |
}
|
|
653 |
|
|
654 |
}
|