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8187443: Forest Consolidation: Move files to unified layout
Reviewed-by: darcy, ihse
This commit is contained in:
Erik Joelsson
parent
270fe13182
commit
3789983e89
56923 changed files with 3 additions and 15727 deletions
741
src/java.base/share/classes/java/time/temporal/IsoFields.java
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741
src/java.base/share/classes/java/time/temporal/IsoFields.java
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@ -0,0 +1,741 @@
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/*
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* Copyright (c) 2012, 2017, 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
|
||||
* 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).
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||||
*
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||||
* 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,
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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) 2011-2012, 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.temporal;
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import static java.time.DayOfWeek.THURSDAY;
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import static java.time.DayOfWeek.WEDNESDAY;
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import static java.time.temporal.ChronoField.DAY_OF_WEEK;
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import static java.time.temporal.ChronoField.DAY_OF_YEAR;
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import static java.time.temporal.ChronoField.EPOCH_DAY;
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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 static java.time.temporal.ChronoUnit.DAYS;
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import static java.time.temporal.ChronoUnit.FOREVER;
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import static java.time.temporal.ChronoUnit.MONTHS;
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import static java.time.temporal.ChronoUnit.WEEKS;
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import static java.time.temporal.ChronoUnit.YEARS;
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import java.time.DateTimeException;
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import java.time.Duration;
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import java.time.LocalDate;
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import java.time.chrono.ChronoLocalDate;
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import java.time.chrono.Chronology;
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import java.time.chrono.IsoChronology;
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import java.time.format.ResolverStyle;
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import java.util.Locale;
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import java.util.Map;
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import java.util.Objects;
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import java.util.ResourceBundle;
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import sun.util.locale.provider.LocaleProviderAdapter;
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import sun.util.locale.provider.LocaleResources;
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/**
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* Fields and units specific to the ISO-8601 calendar system,
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* including quarter-of-year and week-based-year.
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* <p>
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* This class defines fields and units that are specific to the ISO calendar system.
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*
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* <h3>Quarter of year</h3>
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* The ISO-8601 standard is based on the standard civic 12 month year.
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* This is commonly divided into four quarters, often abbreviated as Q1, Q2, Q3 and Q4.
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* <p>
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* January, February and March are in Q1.
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* April, May and June are in Q2.
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* July, August and September are in Q3.
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* October, November and December are in Q4.
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* <p>
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* The complete date is expressed using three fields:
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* <ul>
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* <li>{@link #DAY_OF_QUARTER DAY_OF_QUARTER} - the day within the quarter, from 1 to 90, 91 or 92
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* <li>{@link #QUARTER_OF_YEAR QUARTER_OF_YEAR} - the quarter within the year, from 1 to 4
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* <li>{@link ChronoField#YEAR YEAR} - the standard ISO year
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* </ul>
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*
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* <h3>Week based years</h3>
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* The ISO-8601 standard was originally intended as a data interchange format,
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* defining a string format for dates and times. However, it also defines an
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* alternate way of expressing the date, based on the concept of week-based-year.
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* <p>
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* The date is expressed using three fields:
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* <ul>
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* <li>{@link ChronoField#DAY_OF_WEEK DAY_OF_WEEK} - the standard field defining the
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* day-of-week from Monday (1) to Sunday (7)
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* <li>{@link #WEEK_OF_WEEK_BASED_YEAR} - the week within the week-based-year
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* <li>{@link #WEEK_BASED_YEAR WEEK_BASED_YEAR} - the week-based-year
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* </ul>
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* The week-based-year itself is defined relative to the standard ISO proleptic year.
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* It differs from the standard year in that it always starts on a Monday.
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* <p>
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* The first week of a week-based-year is the first Monday-based week of the standard
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* ISO year that has at least 4 days in the new year.
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* <ul>
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* <li>If January 1st is Monday then week 1 starts on January 1st
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* <li>If January 1st is Tuesday then week 1 starts on December 31st of the previous standard year
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* <li>If January 1st is Wednesday then week 1 starts on December 30th of the previous standard year
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* <li>If January 1st is Thursday then week 1 starts on December 29th of the previous standard year
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* <li>If January 1st is Friday then week 1 starts on January 4th
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* <li>If January 1st is Saturday then week 1 starts on January 3rd
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* <li>If January 1st is Sunday then week 1 starts on January 2nd
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* </ul>
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* There are 52 weeks in most week-based years, however on occasion there are 53 weeks.
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* <p>
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* For example:
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*
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* <table class=striped style="text-align: left">
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* <caption>Examples of Week based Years</caption>
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* <thead>
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* <tr><th scope="col">Date</th><th scope="col">Day-of-week</th><th scope="col">Field values</th></tr>
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* </thead>
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* <tbody>
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* <tr><th scope="row">2008-12-28</th><td>Sunday</td><td>Week 52 of week-based-year 2008</td></tr>
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* <tr><th scope="row">2008-12-29</th><td>Monday</td><td>Week 1 of week-based-year 2009</td></tr>
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* <tr><th scope="row">2008-12-31</th><td>Wednesday</td><td>Week 1 of week-based-year 2009</td></tr>
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* <tr><th scope="row">2009-01-01</th><td>Thursday</td><td>Week 1 of week-based-year 2009</td></tr>
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* <tr><th scope="row">2009-01-04</th><td>Sunday</td><td>Week 1 of week-based-year 2009</td></tr>
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* <tr><th scope="row">2009-01-05</th><td>Monday</td><td>Week 2 of week-based-year 2009</td></tr>
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* </tbody>
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* </table>
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*
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* @implSpec
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* <p>
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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 IsoFields {
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/**
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* The field that represents the day-of-quarter.
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* <p>
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* This field allows the day-of-quarter value to be queried and set.
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* The day-of-quarter has values from 1 to 90 in Q1 of a standard year, from 1 to 91
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* in Q1 of a leap year, from 1 to 91 in Q2 and from 1 to 92 in Q3 and Q4.
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* <p>
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* The day-of-quarter can only be calculated if the day-of-year, month-of-year and year
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* are available.
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* <p>
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* When setting this field, the value is allowed to be partially lenient, taking any
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* value from 1 to 92. If the quarter has less than 92 days, then day 92, and
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* potentially day 91, is in the following quarter.
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* <p>
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* In the resolving phase of parsing, a date can be created from a year,
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* quarter-of-year and day-of-quarter.
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* <p>
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* In {@linkplain ResolverStyle#STRICT strict mode}, all three fields are
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* validated against their range of valid values. The day-of-quarter field
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* is validated from 1 to 90, 91 or 92 depending on the year and quarter.
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* <p>
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* In {@linkplain ResolverStyle#SMART smart mode}, all three fields are
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* validated against their range of valid values. The day-of-quarter field is
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* validated between 1 and 92, ignoring the actual range based on the year and quarter.
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* If the day-of-quarter exceeds the actual range by one day, then the resulting date
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* is one day later. If the day-of-quarter exceeds the actual range by two days,
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* then the resulting date is two days later.
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* <p>
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* In {@linkplain ResolverStyle#LENIENT lenient mode}, only the year is validated
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* against the range of valid values. The resulting date is calculated equivalent to
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* the following three stage approach. First, create a date on the first of January
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* in the requested year. Then take the quarter-of-year, subtract one, and add the
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* amount in quarters to the date. Finally, take the day-of-quarter, subtract one,
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* and add the amount in days to the date.
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* <p>
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* This unit is an immutable and thread-safe singleton.
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*/
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public static final TemporalField DAY_OF_QUARTER = Field.DAY_OF_QUARTER;
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/**
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* The field that represents the quarter-of-year.
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* <p>
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* This field allows the quarter-of-year value to be queried and set.
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* The quarter-of-year has values from 1 to 4.
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* <p>
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* The quarter-of-year can only be calculated if the month-of-year is available.
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* <p>
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* In the resolving phase of parsing, a date can be created from a year,
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* quarter-of-year and day-of-quarter.
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* See {@link #DAY_OF_QUARTER} for details.
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* <p>
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* This unit is an immutable and thread-safe singleton.
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*/
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public static final TemporalField QUARTER_OF_YEAR = Field.QUARTER_OF_YEAR;
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/**
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* The field that represents the week-of-week-based-year.
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* <p>
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* This field allows the week of the week-based-year value to be queried and set.
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* The week-of-week-based-year has values from 1 to 52, or 53 if the
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* week-based-year has 53 weeks.
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* <p>
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* In the resolving phase of parsing, a date can be created from a
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* week-based-year, week-of-week-based-year and day-of-week.
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* <p>
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* In {@linkplain ResolverStyle#STRICT strict mode}, all three fields are
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* validated against their range of valid values. The week-of-week-based-year
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* field is validated from 1 to 52 or 53 depending on the week-based-year.
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* <p>
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* In {@linkplain ResolverStyle#SMART smart mode}, all three fields are
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* validated against their range of valid values. The week-of-week-based-year
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* field is validated between 1 and 53, ignoring the week-based-year.
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* If the week-of-week-based-year is 53, but the week-based-year only has
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* 52 weeks, then the resulting date is in week 1 of the following week-based-year.
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* <p>
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* In {@linkplain ResolverStyle#LENIENT lenient mode}, only the week-based-year
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* is validated against the range of valid values. If the day-of-week is outside
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* the range 1 to 7, then the resulting date is adjusted by a suitable number of
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* weeks to reduce the day-of-week to the range 1 to 7. If the week-of-week-based-year
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* value is outside the range 1 to 52, then any excess weeks are added or subtracted
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* from the resulting date.
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* <p>
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* This unit is an immutable and thread-safe singleton.
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*/
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public static final TemporalField WEEK_OF_WEEK_BASED_YEAR = Field.WEEK_OF_WEEK_BASED_YEAR;
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/**
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* The field that represents the week-based-year.
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* <p>
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* This field allows the week-based-year value to be queried and set.
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* <p>
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* The field has a range that matches {@link LocalDate#MAX} and {@link LocalDate#MIN}.
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* <p>
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* In the resolving phase of parsing, a date can be created from a
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* week-based-year, week-of-week-based-year and day-of-week.
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* See {@link #WEEK_OF_WEEK_BASED_YEAR} for details.
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* <p>
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* This unit is an immutable and thread-safe singleton.
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*/
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public static final TemporalField WEEK_BASED_YEAR = Field.WEEK_BASED_YEAR;
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/**
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* The unit that represents week-based-years for the purpose of addition and subtraction.
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* <p>
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* This allows a number of week-based-years to be added to, or subtracted from, a date.
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* The unit is equal to either 52 or 53 weeks.
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* The estimated duration of a week-based-year is the same as that of a standard ISO
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* year at {@code 365.2425 Days}.
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* <p>
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* The rules for addition add the number of week-based-years to the existing value
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* for the week-based-year field. If the resulting week-based-year only has 52 weeks,
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* then the date will be in week 1 of the following week-based-year.
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* <p>
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* This unit is an immutable and thread-safe singleton.
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*/
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public static final TemporalUnit WEEK_BASED_YEARS = Unit.WEEK_BASED_YEARS;
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/**
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* Unit that represents the concept of a quarter-year.
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* For the ISO calendar system, it is equal to 3 months.
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* The estimated duration of a quarter-year is one quarter of {@code 365.2425 Days}.
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* <p>
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* This unit is an immutable and thread-safe singleton.
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*/
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public static final TemporalUnit QUARTER_YEARS = Unit.QUARTER_YEARS;
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/**
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* Restricted constructor.
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*/
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private IsoFields() {
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throw new AssertionError("Not instantiable");
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}
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//-----------------------------------------------------------------------
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/**
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* Implementation of the field.
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*/
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private static enum Field implements TemporalField {
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DAY_OF_QUARTER {
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@Override
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public TemporalUnit getBaseUnit() {
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return DAYS;
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}
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@Override
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public TemporalUnit getRangeUnit() {
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return QUARTER_YEARS;
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}
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@Override
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public ValueRange range() {
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return ValueRange.of(1, 90, 92);
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}
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@Override
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public boolean isSupportedBy(TemporalAccessor temporal) {
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return temporal.isSupported(DAY_OF_YEAR) && temporal.isSupported(MONTH_OF_YEAR) &&
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temporal.isSupported(YEAR) && isIso(temporal);
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}
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@Override
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public ValueRange rangeRefinedBy(TemporalAccessor temporal) {
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if (isSupportedBy(temporal) == false) {
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throw new UnsupportedTemporalTypeException("Unsupported field: DayOfQuarter");
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}
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long qoy = temporal.getLong(QUARTER_OF_YEAR);
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if (qoy == 1) {
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long year = temporal.getLong(YEAR);
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return (IsoChronology.INSTANCE.isLeapYear(year) ? ValueRange.of(1, 91) : ValueRange.of(1, 90));
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} else if (qoy == 2) {
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return ValueRange.of(1, 91);
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} else if (qoy == 3 || qoy == 4) {
|
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return ValueRange.of(1, 92);
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} // else value not from 1 to 4, so drop through
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return range();
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}
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@Override
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public long getFrom(TemporalAccessor temporal) {
|
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if (isSupportedBy(temporal) == false) {
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throw new UnsupportedTemporalTypeException("Unsupported field: DayOfQuarter");
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}
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int doy = temporal.get(DAY_OF_YEAR);
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int moy = temporal.get(MONTH_OF_YEAR);
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long year = temporal.getLong(YEAR);
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return doy - QUARTER_DAYS[((moy - 1) / 3) + (IsoChronology.INSTANCE.isLeapYear(year) ? 4 : 0)];
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}
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@SuppressWarnings("unchecked")
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@Override
|
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public <R extends Temporal> R adjustInto(R temporal, long newValue) {
|
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// calls getFrom() to check if supported
|
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long curValue = getFrom(temporal);
|
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range().checkValidValue(newValue, this); // leniently check from 1 to 92 TODO: check
|
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return (R) temporal.with(DAY_OF_YEAR, temporal.getLong(DAY_OF_YEAR) + (newValue - curValue));
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}
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@Override
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public ChronoLocalDate resolve(
|
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Map<TemporalField, Long> fieldValues, TemporalAccessor partialTemporal, ResolverStyle resolverStyle) {
|
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Long yearLong = fieldValues.get(YEAR);
|
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Long qoyLong = fieldValues.get(QUARTER_OF_YEAR);
|
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if (yearLong == null || qoyLong == null) {
|
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return null;
|
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}
|
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int y = YEAR.checkValidIntValue(yearLong); // always validate
|
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long doq = fieldValues.get(DAY_OF_QUARTER);
|
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ensureIso(partialTemporal);
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LocalDate date;
|
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if (resolverStyle == ResolverStyle.LENIENT) {
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date = LocalDate.of(y, 1, 1).plusMonths(Math.multiplyExact(Math.subtractExact(qoyLong, 1), 3));
|
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doq = Math.subtractExact(doq, 1);
|
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} else {
|
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int qoy = QUARTER_OF_YEAR.range().checkValidIntValue(qoyLong, QUARTER_OF_YEAR); // validated
|
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date = LocalDate.of(y, ((qoy - 1) * 3) + 1, 1);
|
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if (doq < 1 || doq > 90) {
|
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if (resolverStyle == ResolverStyle.STRICT) {
|
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rangeRefinedBy(date).checkValidValue(doq, this); // only allow exact range
|
||||
} else { // SMART
|
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range().checkValidValue(doq, this); // allow 1-92 rolling into next quarter
|
||||
}
|
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}
|
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doq--;
|
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}
|
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fieldValues.remove(this);
|
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fieldValues.remove(YEAR);
|
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fieldValues.remove(QUARTER_OF_YEAR);
|
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return date.plusDays(doq);
|
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}
|
||||
@Override
|
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public String toString() {
|
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return "DayOfQuarter";
|
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}
|
||||
},
|
||||
QUARTER_OF_YEAR {
|
||||
@Override
|
||||
public TemporalUnit getBaseUnit() {
|
||||
return QUARTER_YEARS;
|
||||
}
|
||||
@Override
|
||||
public TemporalUnit getRangeUnit() {
|
||||
return YEARS;
|
||||
}
|
||||
@Override
|
||||
public ValueRange range() {
|
||||
return ValueRange.of(1, 4);
|
||||
}
|
||||
@Override
|
||||
public boolean isSupportedBy(TemporalAccessor temporal) {
|
||||
return temporal.isSupported(MONTH_OF_YEAR) && isIso(temporal);
|
||||
}
|
||||
@Override
|
||||
public long getFrom(TemporalAccessor temporal) {
|
||||
if (isSupportedBy(temporal) == false) {
|
||||
throw new UnsupportedTemporalTypeException("Unsupported field: QuarterOfYear");
|
||||
}
|
||||
long moy = temporal.getLong(MONTH_OF_YEAR);
|
||||
return ((moy + 2) / 3);
|
||||
}
|
||||
public ValueRange rangeRefinedBy(TemporalAccessor temporal) {
|
||||
if (isSupportedBy(temporal) == false) {
|
||||
throw new UnsupportedTemporalTypeException("Unsupported field: QuarterOfYear");
|
||||
}
|
||||
return super.rangeRefinedBy(temporal);
|
||||
}
|
||||
@SuppressWarnings("unchecked")
|
||||
@Override
|
||||
public <R extends Temporal> R adjustInto(R temporal, long newValue) {
|
||||
// calls getFrom() to check if supported
|
||||
long curValue = getFrom(temporal);
|
||||
range().checkValidValue(newValue, this); // strictly check from 1 to 4
|
||||
return (R) temporal.with(MONTH_OF_YEAR, temporal.getLong(MONTH_OF_YEAR) + (newValue - curValue) * 3);
|
||||
}
|
||||
@Override
|
||||
public String toString() {
|
||||
return "QuarterOfYear";
|
||||
}
|
||||
},
|
||||
WEEK_OF_WEEK_BASED_YEAR {
|
||||
@Override
|
||||
public String getDisplayName(Locale locale) {
|
||||
Objects.requireNonNull(locale, "locale");
|
||||
LocaleResources lr = LocaleProviderAdapter.getResourceBundleBased()
|
||||
.getLocaleResources(locale);
|
||||
ResourceBundle rb = lr.getJavaTimeFormatData();
|
||||
return rb.containsKey("field.week") ? rb.getString("field.week") : toString();
|
||||
}
|
||||
|
||||
@Override
|
||||
public TemporalUnit getBaseUnit() {
|
||||
return WEEKS;
|
||||
}
|
||||
@Override
|
||||
public TemporalUnit getRangeUnit() {
|
||||
return WEEK_BASED_YEARS;
|
||||
}
|
||||
@Override
|
||||
public ValueRange range() {
|
||||
return ValueRange.of(1, 52, 53);
|
||||
}
|
||||
@Override
|
||||
public boolean isSupportedBy(TemporalAccessor temporal) {
|
||||
return temporal.isSupported(EPOCH_DAY) && isIso(temporal);
|
||||
}
|
||||
@Override
|
||||
public ValueRange rangeRefinedBy(TemporalAccessor temporal) {
|
||||
if (isSupportedBy(temporal) == false) {
|
||||
throw new UnsupportedTemporalTypeException("Unsupported field: WeekOfWeekBasedYear");
|
||||
}
|
||||
return getWeekRange(LocalDate.from(temporal));
|
||||
}
|
||||
@Override
|
||||
public long getFrom(TemporalAccessor temporal) {
|
||||
if (isSupportedBy(temporal) == false) {
|
||||
throw new UnsupportedTemporalTypeException("Unsupported field: WeekOfWeekBasedYear");
|
||||
}
|
||||
return getWeek(LocalDate.from(temporal));
|
||||
}
|
||||
@SuppressWarnings("unchecked")
|
||||
@Override
|
||||
public <R extends Temporal> R adjustInto(R temporal, long newValue) {
|
||||
// calls getFrom() to check if supported
|
||||
range().checkValidValue(newValue, this); // lenient range
|
||||
return (R) temporal.plus(Math.subtractExact(newValue, getFrom(temporal)), WEEKS);
|
||||
}
|
||||
@Override
|
||||
public ChronoLocalDate resolve(
|
||||
Map<TemporalField, Long> fieldValues, TemporalAccessor partialTemporal, ResolverStyle resolverStyle) {
|
||||
Long wbyLong = fieldValues.get(WEEK_BASED_YEAR);
|
||||
Long dowLong = fieldValues.get(DAY_OF_WEEK);
|
||||
if (wbyLong == null || dowLong == null) {
|
||||
return null;
|
||||
}
|
||||
int wby = WEEK_BASED_YEAR.range().checkValidIntValue(wbyLong, WEEK_BASED_YEAR); // always validate
|
||||
long wowby = fieldValues.get(WEEK_OF_WEEK_BASED_YEAR);
|
||||
ensureIso(partialTemporal);
|
||||
LocalDate date = LocalDate.of(wby, 1, 4);
|
||||
if (resolverStyle == ResolverStyle.LENIENT) {
|
||||
long dow = dowLong; // unvalidated
|
||||
if (dow > 7) {
|
||||
date = date.plusWeeks((dow - 1) / 7);
|
||||
dow = ((dow - 1) % 7) + 1;
|
||||
} else if (dow < 1) {
|
||||
date = date.plusWeeks(Math.subtractExact(dow, 7) / 7);
|
||||
dow = ((dow + 6) % 7) + 1;
|
||||
}
|
||||
date = date.plusWeeks(Math.subtractExact(wowby, 1)).with(DAY_OF_WEEK, dow);
|
||||
} else {
|
||||
int dow = DAY_OF_WEEK.checkValidIntValue(dowLong); // validated
|
||||
if (wowby < 1 || wowby > 52) {
|
||||
if (resolverStyle == ResolverStyle.STRICT) {
|
||||
getWeekRange(date).checkValidValue(wowby, this); // only allow exact range
|
||||
} else { // SMART
|
||||
range().checkValidValue(wowby, this); // allow 1-53 rolling into next year
|
||||
}
|
||||
}
|
||||
date = date.plusWeeks(wowby - 1).with(DAY_OF_WEEK, dow);
|
||||
}
|
||||
fieldValues.remove(this);
|
||||
fieldValues.remove(WEEK_BASED_YEAR);
|
||||
fieldValues.remove(DAY_OF_WEEK);
|
||||
return date;
|
||||
}
|
||||
@Override
|
||||
public String toString() {
|
||||
return "WeekOfWeekBasedYear";
|
||||
}
|
||||
},
|
||||
WEEK_BASED_YEAR {
|
||||
@Override
|
||||
public TemporalUnit getBaseUnit() {
|
||||
return WEEK_BASED_YEARS;
|
||||
}
|
||||
@Override
|
||||
public TemporalUnit getRangeUnit() {
|
||||
return FOREVER;
|
||||
}
|
||||
@Override
|
||||
public ValueRange range() {
|
||||
return YEAR.range();
|
||||
}
|
||||
@Override
|
||||
public boolean isSupportedBy(TemporalAccessor temporal) {
|
||||
return temporal.isSupported(EPOCH_DAY) && isIso(temporal);
|
||||
}
|
||||
@Override
|
||||
public long getFrom(TemporalAccessor temporal) {
|
||||
if (isSupportedBy(temporal) == false) {
|
||||
throw new UnsupportedTemporalTypeException("Unsupported field: WeekBasedYear");
|
||||
}
|
||||
return getWeekBasedYear(LocalDate.from(temporal));
|
||||
}
|
||||
public ValueRange rangeRefinedBy(TemporalAccessor temporal) {
|
||||
if (isSupportedBy(temporal) == false) {
|
||||
throw new UnsupportedTemporalTypeException("Unsupported field: WeekBasedYear");
|
||||
}
|
||||
return super.rangeRefinedBy(temporal);
|
||||
}
|
||||
@SuppressWarnings("unchecked")
|
||||
@Override
|
||||
public <R extends Temporal> R adjustInto(R temporal, long newValue) {
|
||||
if (isSupportedBy(temporal) == false) {
|
||||
throw new UnsupportedTemporalTypeException("Unsupported field: WeekBasedYear");
|
||||
}
|
||||
int newWby = range().checkValidIntValue(newValue, WEEK_BASED_YEAR); // strict check
|
||||
LocalDate date = LocalDate.from(temporal);
|
||||
int dow = date.get(DAY_OF_WEEK);
|
||||
int week = getWeek(date);
|
||||
if (week == 53 && getWeekRange(newWby) == 52) {
|
||||
week = 52;
|
||||
}
|
||||
LocalDate resolved = LocalDate.of(newWby, 1, 4); // 4th is guaranteed to be in week one
|
||||
int days = (dow - resolved.get(DAY_OF_WEEK)) + ((week - 1) * 7);
|
||||
resolved = resolved.plusDays(days);
|
||||
return (R) temporal.with(resolved);
|
||||
}
|
||||
@Override
|
||||
public String toString() {
|
||||
return "WeekBasedYear";
|
||||
}
|
||||
};
|
||||
|
||||
@Override
|
||||
public boolean isDateBased() {
|
||||
return true;
|
||||
}
|
||||
|
||||
@Override
|
||||
public boolean isTimeBased() {
|
||||
return false;
|
||||
}
|
||||
|
||||
@Override
|
||||
public ValueRange rangeRefinedBy(TemporalAccessor temporal) {
|
||||
return range();
|
||||
}
|
||||
|
||||
//-------------------------------------------------------------------------
|
||||
private static final int[] QUARTER_DAYS = {0, 90, 181, 273, 0, 91, 182, 274};
|
||||
|
||||
|
||||
private static void ensureIso(TemporalAccessor temporal) {
|
||||
if (isIso(temporal) == false) {
|
||||
throw new DateTimeException("Resolve requires IsoChronology");
|
||||
}
|
||||
}
|
||||
|
||||
private static ValueRange getWeekRange(LocalDate date) {
|
||||
int wby = getWeekBasedYear(date);
|
||||
return ValueRange.of(1, getWeekRange(wby));
|
||||
}
|
||||
|
||||
private static int getWeekRange(int wby) {
|
||||
LocalDate date = LocalDate.of(wby, 1, 1);
|
||||
// 53 weeks if standard year starts on Thursday, or Wed in a leap year
|
||||
if (date.getDayOfWeek() == THURSDAY || (date.getDayOfWeek() == WEDNESDAY && date.isLeapYear())) {
|
||||
return 53;
|
||||
}
|
||||
return 52;
|
||||
}
|
||||
|
||||
private static int getWeek(LocalDate date) {
|
||||
int dow0 = date.getDayOfWeek().ordinal();
|
||||
int doy0 = date.getDayOfYear() - 1;
|
||||
int doyThu0 = doy0 + (3 - dow0); // adjust to mid-week Thursday (which is 3 indexed from zero)
|
||||
int alignedWeek = doyThu0 / 7;
|
||||
int firstThuDoy0 = doyThu0 - (alignedWeek * 7);
|
||||
int firstMonDoy0 = firstThuDoy0 - 3;
|
||||
if (firstMonDoy0 < -3) {
|
||||
firstMonDoy0 += 7;
|
||||
}
|
||||
if (doy0 < firstMonDoy0) {
|
||||
return (int) getWeekRange(date.withDayOfYear(180).minusYears(1)).getMaximum();
|
||||
}
|
||||
int week = ((doy0 - firstMonDoy0) / 7) + 1;
|
||||
if (week == 53) {
|
||||
if ((firstMonDoy0 == -3 || (firstMonDoy0 == -2 && date.isLeapYear())) == false) {
|
||||
week = 1;
|
||||
}
|
||||
}
|
||||
return week;
|
||||
}
|
||||
|
||||
private static int getWeekBasedYear(LocalDate date) {
|
||||
int year = date.getYear();
|
||||
int doy = date.getDayOfYear();
|
||||
if (doy <= 3) {
|
||||
int dow = date.getDayOfWeek().ordinal();
|
||||
if (doy - dow < -2) {
|
||||
year--;
|
||||
}
|
||||
} else if (doy >= 363) {
|
||||
int dow = date.getDayOfWeek().ordinal();
|
||||
doy = doy - 363 - (date.isLeapYear() ? 1 : 0);
|
||||
if (doy - dow >= 0) {
|
||||
year++;
|
||||
}
|
||||
}
|
||||
return year;
|
||||
}
|
||||
}
|
||||
|
||||
//-----------------------------------------------------------------------
|
||||
/**
|
||||
* Implementation of the unit.
|
||||
*/
|
||||
private static enum Unit implements TemporalUnit {
|
||||
|
||||
/**
|
||||
* Unit that represents the concept of a week-based-year.
|
||||
*/
|
||||
WEEK_BASED_YEARS("WeekBasedYears", Duration.ofSeconds(31556952L)),
|
||||
/**
|
||||
* Unit that represents the concept of a quarter-year.
|
||||
*/
|
||||
QUARTER_YEARS("QuarterYears", Duration.ofSeconds(31556952L / 4));
|
||||
|
||||
private final String name;
|
||||
private final Duration duration;
|
||||
|
||||
private Unit(String name, Duration estimatedDuration) {
|
||||
this.name = name;
|
||||
this.duration = estimatedDuration;
|
||||
}
|
||||
|
||||
@Override
|
||||
public Duration getDuration() {
|
||||
return duration;
|
||||
}
|
||||
|
||||
@Override
|
||||
public boolean isDurationEstimated() {
|
||||
return true;
|
||||
}
|
||||
|
||||
@Override
|
||||
public boolean isDateBased() {
|
||||
return true;
|
||||
}
|
||||
|
||||
@Override
|
||||
public boolean isTimeBased() {
|
||||
return false;
|
||||
}
|
||||
|
||||
@Override
|
||||
public boolean isSupportedBy(Temporal temporal) {
|
||||
return temporal.isSupported(EPOCH_DAY) && isIso(temporal);
|
||||
}
|
||||
|
||||
@SuppressWarnings("unchecked")
|
||||
@Override
|
||||
public <R extends Temporal> R addTo(R temporal, long amount) {
|
||||
switch (this) {
|
||||
case WEEK_BASED_YEARS:
|
||||
return (R) temporal.with(WEEK_BASED_YEAR,
|
||||
Math.addExact(temporal.get(WEEK_BASED_YEAR), amount));
|
||||
case QUARTER_YEARS:
|
||||
// no overflow (256 is multiple of 4)
|
||||
return (R) temporal.plus(amount / 256, YEARS)
|
||||
.plus((amount % 256) * 3, MONTHS);
|
||||
default:
|
||||
throw new IllegalStateException("Unreachable");
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
public long between(Temporal temporal1Inclusive, Temporal temporal2Exclusive) {
|
||||
if (temporal1Inclusive.getClass() != temporal2Exclusive.getClass()) {
|
||||
return temporal1Inclusive.until(temporal2Exclusive, this);
|
||||
}
|
||||
switch(this) {
|
||||
case WEEK_BASED_YEARS:
|
||||
return Math.subtractExact(temporal2Exclusive.getLong(WEEK_BASED_YEAR),
|
||||
temporal1Inclusive.getLong(WEEK_BASED_YEAR));
|
||||
case QUARTER_YEARS:
|
||||
return temporal1Inclusive.until(temporal2Exclusive, MONTHS) / 3;
|
||||
default:
|
||||
throw new IllegalStateException("Unreachable");
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
public String toString() {
|
||||
return name;
|
||||
}
|
||||
}
|
||||
|
||||
static boolean isIso(TemporalAccessor temporal) {
|
||||
return Chronology.from(temporal).equals(IsoChronology.INSTANCE);
|
||||
}
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue