| /* | |
| * Copyright (c) 2012, 2023, Oracle and/or its affiliates. All rights reserved. | |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| * | |
| * This code is free software; you can redistribute it and/or modify it | |
| * under the terms of the GNU General Public License version 2 only, as | |
| * published by the Free Software Foundation. Oracle designates this | |
| * particular file as subject to the "Classpath" exception as provided | |
| * by Oracle in the LICENSE file that accompanied this code. | |
| * | |
| * This code is distributed in the hope that it will be useful, but WITHOUT | |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| * version 2 for more details (a copy is included in the LICENSE file that | |
| * accompanied this code). | |
| * | |
| * You should have received a copy of the GNU General Public License version | |
| * 2 along with this work; if not, write to the Free Software Foundation, | |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| * | |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| * or visit www.oracle.com if you need additional information or have any | |
| * questions. | |
| */ | |
| /* | |
| * This file is available under and governed by the GNU General Public | |
| * License version 2 only, as published by the Free Software Foundation. | |
| * However, the following notice accompanied the original version of this | |
| * file: | |
| * | |
| * Copyright (c) 2012, Stephen Colebourne & Michael Nascimento Santos | |
| * | |
| * All rights reserved. | |
| * | |
| * Redistribution and use in source and binary forms, with or without | |
| * modification, are permitted provided that the following conditions are met: | |
| * | |
| * * Redistributions of source code must retain the above copyright notice, | |
| * this list of conditions and the following disclaimer. | |
| * | |
| * * Redistributions in binary form must reproduce the above copyright notice, | |
| * this list of conditions and the following disclaimer in the documentation | |
| * and/or other materials provided with the distribution. | |
| * | |
| * * Neither the name of JSR-310 nor the names of its contributors | |
| * may be used to endorse or promote products derived from this software | |
| * without specific prior written permission. | |
| * | |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR | |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | |
| * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
| * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | |
| * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| */ | |
| package java.time.chrono; | |
| import static java.time.temporal.ChronoField.ALIGNED_DAY_OF_WEEK_IN_MONTH; | |
| import static java.time.temporal.ChronoField.ALIGNED_DAY_OF_WEEK_IN_YEAR; | |
| import static java.time.temporal.ChronoField.ALIGNED_WEEK_OF_MONTH; | |
| import static java.time.temporal.ChronoField.ALIGNED_WEEK_OF_YEAR; | |
| import static java.time.temporal.ChronoField.DAY_OF_MONTH; | |
| import static java.time.temporal.ChronoField.DAY_OF_WEEK; | |
| import static java.time.temporal.ChronoField.DAY_OF_YEAR; | |
| import static java.time.temporal.ChronoField.EPOCH_DAY; | |
| import static java.time.temporal.ChronoField.ERA; | |
| import static java.time.temporal.ChronoField.MONTH_OF_YEAR; | |
| import static java.time.temporal.ChronoField.PROLEPTIC_MONTH; | |
| import static java.time.temporal.ChronoField.YEAR; | |
| import static java.time.temporal.ChronoField.YEAR_OF_ERA; | |
| import static java.time.temporal.ChronoUnit.DAYS; | |
| import static java.time.temporal.ChronoUnit.MONTHS; | |
| import static java.time.temporal.ChronoUnit.WEEKS; | |
| import static java.time.temporal.TemporalAdjusters.nextOrSame; | |
| import java.io.DataInput; | |
| import java.io.DataOutput; | |
| import java.io.IOException; | |
| import java.io.InvalidObjectException; | |
| import java.io.ObjectInputStream; | |
| import java.io.ObjectStreamException; | |
| import java.io.Serializable; | |
| import java.time.DateTimeException; | |
| import java.time.DayOfWeek; | |
| import java.time.format.ResolverStyle; | |
| import java.time.temporal.ChronoField; | |
| import java.time.temporal.TemporalAdjusters; | |
| import java.time.temporal.TemporalField; | |
| import java.time.temporal.ValueRange; | |
| import java.util.HashSet; | |
| import java.util.List; | |
| import java.util.Locale; | |
| import java.util.Map; | |
| import java.util.Objects; | |
| import java.util.ServiceLoader; | |
| import java.util.Set; | |
| import java.util.concurrent.ConcurrentHashMap; | |
| import sun.util.logging.PlatformLogger; | |
| /** | |
| * An abstract implementation of a calendar system, used to organize and identify dates. | |
| * <p> | |
| * The main date and time API is built on the ISO calendar system. | |
| * The chronology operates behind the scenes to represent the general concept of a calendar system. | |
| * <p> | |
| * See {@link Chronology} for more details. | |
| * | |
| * @implSpec | |
| * This class is separated from the {@code Chronology} interface so that the static methods | |
| * are not inherited. While {@code Chronology} can be implemented directly, it is strongly | |
| * recommended to extend this abstract class instead. | |
| * <p> | |
| * This class must be implemented with care to ensure other classes operate correctly. | |
| * All implementations that can be instantiated must be final, immutable and thread-safe. | |
| * Subclasses should be Serializable wherever possible. | |
| * | |
| * @since 1.8 | |
| */ | |
| public abstract class AbstractChronology implements Chronology { | |
| /** | |
| * Map of available calendars by ID. | |
| */ | |
| private static final ConcurrentHashMap<String, Chronology> CHRONOS_BY_ID = new ConcurrentHashMap<>(); | |
| /** | |
| * Map of available calendars by calendar type. | |
| */ | |
| private static final ConcurrentHashMap<String, Chronology> CHRONOS_BY_TYPE = new ConcurrentHashMap<>(); | |
| /** | |
| * Register a Chronology by its ID and type for lookup by {@link #of(String)}. | |
| * Chronologies must not be registered until they are completely constructed. | |
| * Specifically, not in the constructor of Chronology. | |
| * | |
| * @param chrono the chronology to register; not null | |
| * @return the already registered Chronology if any, may be null | |
| */ | |
| static Chronology registerChrono(Chronology chrono) { | |
| return registerChrono(chrono, chrono.getId()); | |
| } | |
| /** | |
| * Register a Chronology by ID and type for lookup by {@link #of(String)}. | |
| * Chronos must not be registered until they are completely constructed. | |
| * Specifically, not in the constructor of Chronology. | |
| * | |
| * @param chrono the chronology to register; not null | |
| * @param id the ID to register the chronology; not null | |
| * @return the already registered Chronology if any, may be null | |
| */ | |
| static Chronology registerChrono(Chronology chrono, String id) { | |
| Chronology prev = CHRONOS_BY_ID.putIfAbsent(id, chrono); | |
| if (prev == null) { | |
| String type = chrono.getCalendarType(); | |
| if (type != null) { | |
| CHRONOS_BY_TYPE.putIfAbsent(type, chrono); | |
| } | |
| } | |
| return prev; | |
| } | |
| /** | |
| * Initialization of the maps from id and type to Chronology. | |
| * The ServiceLoader is used to find and register any implementations | |
| * of {@link java.time.chrono.AbstractChronology} found in the bootclass loader. | |
| * The built-in chronologies are registered explicitly. | |
| * Calendars configured via the Thread's context classloader are local | |
| * to that thread and are ignored. | |
| * <p> | |
| * The initialization is done only once using the registration | |
| * of the IsoChronology as the test and the final step. | |
| * Multiple threads may perform the initialization concurrently. | |
| * Only the first registration of each Chronology is retained by the | |
| * ConcurrentHashMap. | |
| * @return true if the cache was initialized | |
| */ | |
| private static boolean initCache() { | |
| if (CHRONOS_BY_ID.get("ISO") == null) { | |
| // Initialization is incomplete | |
| // Register built-in Chronologies | |
| registerChrono(HijrahChronology.INSTANCE); | |
| registerChrono(JapaneseChronology.INSTANCE); | |
| registerChrono(MinguoChronology.INSTANCE); | |
| registerChrono(ThaiBuddhistChronology.INSTANCE); | |
| // Register Chronologies from the ServiceLoader | |
| ServiceLoader<AbstractChronology> loader = ServiceLoader.load(AbstractChronology.class, null); | |
| for (AbstractChronology chrono : loader) { | |
| String id = chrono.getId(); | |
| if (id.equals("ISO") || registerChrono(chrono) != null) { | |
| // Log the attempt to replace an existing Chronology | |
| PlatformLogger logger = PlatformLogger.getLogger("java.time.chrono"); | |
| logger.warning("Ignoring duplicate Chronology, from ServiceLoader configuration " + id); | |
| } | |
| } | |
| // finally, register IsoChronology to mark initialization is complete | |
| registerChrono(IsoChronology.INSTANCE); | |
| return true; | |
| } | |
| return false; | |
| } | |
| //----------------------------------------------------------------------- | |
| /** | |
| * Obtains an instance of {@code Chronology} from a locale. | |
| * <p> | |
| * See {@link Chronology#ofLocale(Locale)}. | |
| * | |
| * @param locale the locale to use to obtain the calendar system, not null | |
| * @return the calendar system associated with the locale, not null | |
| * @throws java.time.DateTimeException if the locale-specified calendar cannot be found | |
| */ | |
| static Chronology ofLocale(Locale locale) { | |
| Objects.requireNonNull(locale, "locale"); | |
| String type = locale.getUnicodeLocaleType("ca"); | |
| if (type == null || "iso".equals(type) || "iso8601".equals(type)) { | |
| return IsoChronology.INSTANCE; | |
| } | |
| // Not pre-defined; lookup by the type | |
| do { | |
| Chronology chrono = CHRONOS_BY_TYPE.get(type); | |
| if (chrono != null) { | |
| return chrono; | |
| } | |
| // If not found, do the initialization (once) and repeat the lookup | |
| } while (initCache()); | |
| // Look for a Chronology using ServiceLoader of the Thread's ContextClassLoader | |
| // Application provided Chronologies must not be cached | |
| ServiceLoader<Chronology> loader = ServiceLoader.load(Chronology.class); | |
| for (Chronology chrono : loader) { | |
| if (type.equals(chrono.getCalendarType())) { | |
| return chrono; | |
| } | |
| } | |
| throw new DateTimeException("Unknown calendar system: " + type); | |
| } | |
| //----------------------------------------------------------------------- | |
| /** | |
| * Obtains an instance of {@code Chronology} from a chronology ID or | |
| * calendar system type. | |
| * <p> | |
| * See {@link Chronology#of(String)}. | |
| * | |
| * @param id the chronology ID or calendar system type, not null | |
| * @return the chronology with the identifier requested, not null | |
| * @throws java.time.DateTimeException if the chronology cannot be found | |
| */ | |
| static Chronology of(String id) { | |
| Objects.requireNonNull(id, "id"); | |
| do { | |
| Chronology chrono = of0(id); | |
| if (chrono != null) { | |
| return chrono; | |
| } | |
| // If not found, do the initialization (once) and repeat the lookup | |
| } while (initCache()); | |
| // Look for a Chronology using ServiceLoader of the Thread's ContextClassLoader | |
| // Application provided Chronologies must not be cached | |
| ServiceLoader<Chronology> loader = ServiceLoader.load(Chronology.class); | |
| for (Chronology chrono : loader) { | |
| if (id.equals(chrono.getId()) || id.equals(chrono.getCalendarType())) { | |
| return chrono; | |
| } | |
| } | |
| throw new DateTimeException("Unknown chronology: " + id); | |
| } | |
| /** | |
| * Obtains an instance of {@code Chronology} from a chronology ID or | |
| * calendar system type. | |
| * | |
| * @param id the chronology ID or calendar system type, not null | |
| * @return the chronology with the identifier requested, or {@code null} if not found | |
| */ | |
| private static Chronology of0(String id) { | |
| Chronology chrono = CHRONOS_BY_ID.get(id); | |
| if (chrono == null) { | |
| chrono = CHRONOS_BY_TYPE.get(id); | |
| } | |
| return chrono; | |
| } | |
| /** | |
| * Returns the available chronologies. | |
| * <p> | |
| * Each returned {@code Chronology} is available for use in the system. | |
| * The set of chronologies includes the system chronologies and | |
| * any chronologies provided by the application via ServiceLoader | |
| * configuration. | |
| * | |
| * @return the independent, modifiable set of the available chronology IDs, not null | |
| */ | |
| static Set<Chronology> getAvailableChronologies() { | |
| initCache(); // force initialization | |
| HashSet<Chronology> chronos = new HashSet<>(CHRONOS_BY_ID.values()); | |
| /// Add in Chronologies from the ServiceLoader configuration | |
| ServiceLoader<Chronology> loader = ServiceLoader.load(Chronology.class); | |
| for (Chronology chrono : loader) { | |
| chronos.add(chrono); | |
| } | |
| return chronos; | |
| } | |
| //----------------------------------------------------------------------- | |
| /** | |
| * Creates an instance. | |
| */ | |
| protected AbstractChronology() { | |
| } | |
| //----------------------------------------------------------------------- | |
| /** | |
| * Resolves parsed {@code ChronoField} values into a date during parsing. | |
| * <p> | |
| * Most {@code TemporalField} implementations are resolved using the | |
| * resolve method on the field. By contrast, the {@code ChronoField} class | |
| * defines fields that only have meaning relative to the chronology. | |
| * As such, {@code ChronoField} date fields are resolved here in the | |
| * context of a specific chronology. | |
| * <p> | |
| * {@code ChronoField} instances are resolved by this method, which may | |
| * be overridden in subclasses. | |
| * <ul> | |
| * <li>{@code EPOCH_DAY} - If present, this is converted to a date and | |
| * all other date fields are then cross-checked against the date. | |
| * <li>{@code PROLEPTIC_MONTH} - If present, then it is split into the | |
| * {@code YEAR} and {@code MONTH_OF_YEAR}. If the mode is strict or smart | |
| * then the field is validated. | |
| * <li>{@code YEAR_OF_ERA} and {@code ERA} - If both are present, then they | |
| * are combined to form a {@code YEAR}. In lenient mode, the {@code YEAR_OF_ERA} | |
| * range is not validated, in smart and strict mode it is. The {@code ERA} is | |
| * validated for range in all three modes. If only the {@code YEAR_OF_ERA} is | |
| * present, and the mode is smart or lenient, then the last available era | |
| * is assumed. In strict mode, no era is assumed and the {@code YEAR_OF_ERA} is | |
| * left untouched. If only the {@code ERA} is present, then it is left untouched. | |
| * <li>{@code YEAR}, {@code MONTH_OF_YEAR} and {@code DAY_OF_MONTH} - | |
| * If all three are present, then they are combined to form a date. | |
| * In all three modes, the {@code YEAR} is validated. | |
| * If the mode is smart or strict, then the month and day are validated. | |
| * If the mode is lenient, then the date is combined in a manner equivalent to | |
| * creating a date on the first day of the first month in the requested year, | |
| * then adding the difference in months, then the difference in days. | |
| * If the mode is smart, and the day-of-month is greater than the maximum for | |
| * the year-month, then the day-of-month is adjusted to the last day-of-month. | |
| * If the mode is strict, then the three fields must form a valid date. | |
| * <li>{@code YEAR} and {@code DAY_OF_YEAR} - | |
| * If both are present, then they are combined to form a date. | |
| * In all three modes, the {@code YEAR} is validated. | |
| * If the mode is lenient, then the date is combined in a manner equivalent to | |
| * creating a date on the first day of the requested year, then adding | |
| * the difference in days. | |
| * If the mode is smart or strict, then the two fields must form a valid date. | |
| * <li>{@code YEAR}, {@code MONTH_OF_YEAR}, {@code ALIGNED_WEEK_OF_MONTH} and | |
| * {@code ALIGNED_DAY_OF_WEEK_IN_MONTH} - | |
| * If all four are present, then they are combined to form a date. | |
| * In all three modes, the {@code YEAR} is validated. | |
| * If the mode is lenient, then the date is combined in a manner equivalent to | |
| * creating a date on the first day of the first month in the requested year, then adding | |
| * the difference in months, then the difference in weeks, then in days. | |
| * If the mode is smart or strict, then the all four fields are validated to | |
| * their outer ranges. The date is then combined in a manner equivalent to | |
| * creating a date on the first day of the requested year and month, then adding | |
| * the amount in weeks and days to reach their values. If the mode is strict, | |
| * the date is additionally validated to check that the day and week adjustment | |
| * did not change the month. | |
| * <li>{@code YEAR}, {@code MONTH_OF_YEAR}, {@code ALIGNED_WEEK_OF_MONTH} and | |
| * {@code DAY_OF_WEEK} - If all four are present, then they are combined to | |
| * form a date. The approach is the same as described above for | |
| * years, months and weeks in {@code ALIGNED_DAY_OF_WEEK_IN_MONTH}. | |
| * The day-of-week is adjusted as the next or same matching day-of-week once | |
| * the years, months and weeks have been handled. | |
| * <li>{@code YEAR}, {@code ALIGNED_WEEK_OF_YEAR} and {@code ALIGNED_DAY_OF_WEEK_IN_YEAR} - | |
| * If all three are present, then they are combined to form a date. | |
| * In all three modes, the {@code YEAR} is validated. | |
| * If the mode is lenient, then the date is combined in a manner equivalent to | |
| * creating a date on the first day of the requested year, then adding | |
| * the difference in weeks, then in days. | |
| * If the mode is smart or strict, then the all three fields are validated to | |
| * their outer ranges. The date is then combined in a manner equivalent to | |
| * creating a date on the first day of the requested year, then adding | |
| * the amount in weeks and days to reach their values. If the mode is strict, | |
| * the date is additionally validated to check that the day and week adjustment | |
| * did not change the year. | |
| * <li>{@code YEAR}, {@code ALIGNED_WEEK_OF_YEAR} and {@code DAY_OF_WEEK} - | |
| * If all three are present, then they are combined to form a date. | |
| * The approach is the same as described above for years and weeks in | |
| * {@code ALIGNED_DAY_OF_WEEK_IN_YEAR}. The day-of-week is adjusted as the | |
| * next or same matching day-of-week once the years and weeks have been handled. | |
| * </ul> | |
| * <p> | |
| * The default implementation is suitable for most calendar systems. | |
| * If {@link java.time.temporal.ChronoField#YEAR_OF_ERA} is found without an {@link java.time.temporal.ChronoField#ERA} | |
| * then the last era in {@link #eras()} is used. | |
| * The implementation assumes a 7 day week, that the first day-of-month | |
| * has the value 1, that first day-of-year has the value 1, and that the | |
| * first of the month and year always exists. | |
| * | |
| * @param fieldValues the map of fields to values, which can be updated, not null | |
| * @param resolverStyle the requested type of resolve, not null | |
| * @return the resolved date, null if insufficient information to create a date | |
| * @throws java.time.DateTimeException if the date cannot be resolved, typically | |
| * because of a conflict in the input data | |
| */ | |
| @Override | |
| public ChronoLocalDate resolveDate(Map<TemporalField, Long> fieldValues, ResolverStyle resolverStyle) { | |
| // check epoch-day before inventing era | |
| if (fieldValues.containsKey(EPOCH_DAY)) { | |
| return dateEpochDay(fieldValues.remove(EPOCH_DAY)); | |
| } | |
| // fix proleptic month before inventing era | |
| resolveProlepticMonth(fieldValues, resolverStyle); | |
| // invent era if necessary to resolve year-of-era | |
| ChronoLocalDate resolved = resolveYearOfEra(fieldValues, resolverStyle); | |
| if (resolved != null) { | |
| return resolved; | |
| } | |
| // build date | |
| if (fieldValues.containsKey(YEAR)) { | |
| if (fieldValues.containsKey(MONTH_OF_YEAR)) { | |
| if (fieldValues.containsKey(DAY_OF_MONTH)) { | |
| return resolveYMD(fieldValues, resolverStyle); | |
| } | |
| if (fieldValues.containsKey(ALIGNED_WEEK_OF_MONTH)) { | |
| if (fieldValues.containsKey(ALIGNED_DAY_OF_WEEK_IN_MONTH)) { | |
| return resolveYMAA(fieldValues, resolverStyle); | |
| } | |
| if (fieldValues.containsKey(DAY_OF_WEEK)) { | |
| return resolveYMAD(fieldValues, resolverStyle); | |
| } | |
| } | |
| } | |
| if (fieldValues.containsKey(DAY_OF_YEAR)) { | |
| return resolveYD(fieldValues, resolverStyle); | |
| } | |
| if (fieldValues.containsKey(ALIGNED_WEEK_OF_YEAR)) { | |
| if (fieldValues.containsKey(ALIGNED_DAY_OF_WEEK_IN_YEAR)) { | |
| return resolveYAA(fieldValues, resolverStyle); | |
| } | |
| if (fieldValues.containsKey(DAY_OF_WEEK)) { | |
| return resolveYAD(fieldValues, resolverStyle); | |
| } | |
| } | |
| } | |
| return null; | |
| } | |
| void resolveProlepticMonth(Map<TemporalField, Long> fieldValues, ResolverStyle resolverStyle) { | |
| Long pMonth = fieldValues.remove(PROLEPTIC_MONTH); | |
| if (pMonth != null) { | |
| if (resolverStyle != ResolverStyle.LENIENT) { | |
| PROLEPTIC_MONTH.checkValidValue(pMonth); | |
| } | |
| // first day-of-month is likely to be safest for setting proleptic-month | |
| // cannot add to year zero, as not all chronologies have a year zero | |
| ChronoLocalDate chronoDate = dateNow() | |
| .with(DAY_OF_MONTH, 1).with(PROLEPTIC_MONTH, pMonth); | |
| addFieldValue(fieldValues, MONTH_OF_YEAR, chronoDate.get(MONTH_OF_YEAR)); | |
| addFieldValue(fieldValues, YEAR, chronoDate.get(YEAR)); | |
| } | |
| } | |
| ChronoLocalDate resolveYearOfEra(Map<TemporalField, Long> fieldValues, ResolverStyle resolverStyle) { | |
| Long yoeLong = fieldValues.remove(YEAR_OF_ERA); | |
| if (yoeLong != null) { | |
| Long eraLong = fieldValues.remove(ERA); | |
| int yoe; | |
| if (resolverStyle != ResolverStyle.LENIENT) { | |
| yoe = range(YEAR_OF_ERA).checkValidIntValue(yoeLong, YEAR_OF_ERA); | |
| } else { | |
| yoe = Math.toIntExact(yoeLong); | |
| } | |
| if (eraLong != null) { | |
| Era eraObj = eraOf(range(ERA).checkValidIntValue(eraLong, ERA)); | |
| addFieldValue(fieldValues, YEAR, prolepticYear(eraObj, yoe)); | |
| } else { | |
| if (fieldValues.containsKey(YEAR)) { | |
| int year = range(YEAR).checkValidIntValue(fieldValues.get(YEAR), YEAR); | |
| ChronoLocalDate chronoDate = dateYearDay(year, 1); | |
| addFieldValue(fieldValues, YEAR, prolepticYear(chronoDate.getEra(), yoe)); | |
| } else if (resolverStyle == ResolverStyle.STRICT) { | |
| // do not invent era if strict | |
| // reinstate the field removed earlier, no cross-check issues | |
| fieldValues.put(YEAR_OF_ERA, yoeLong); | |
| } else { | |
| List<Era> eras = eras(); | |
| if (eras.isEmpty()) { | |
| addFieldValue(fieldValues, YEAR, yoe); | |
| } else { | |
| Era eraObj = eras.get(eras.size() - 1); | |
| addFieldValue(fieldValues, YEAR, prolepticYear(eraObj, yoe)); | |
| } | |
| } | |
| } | |
| } else if (fieldValues.containsKey(ERA)) { | |
| range(ERA).checkValidValue(fieldValues.get(ERA), ERA); // always validated | |
| } | |
| return null; | |
| } | |
| ChronoLocalDate resolveYMD(Map<TemporalField, Long> fieldValues, ResolverStyle resolverStyle) { | |
| int y = range(YEAR).checkValidIntValue(fieldValues.remove(YEAR), YEAR); | |
| if (resolverStyle == ResolverStyle.LENIENT) { | |
| long months = Math.subtractExact(fieldValues.remove(MONTH_OF_YEAR), 1); | |
| long days = Math.subtractExact(fieldValues.remove(DAY_OF_MONTH), 1); | |
| return date(y, 1, 1).plus(months, MONTHS).plus(days, DAYS); | |
| } | |
| int moy = range(MONTH_OF_YEAR).checkValidIntValue(fieldValues.remove(MONTH_OF_YEAR), MONTH_OF_YEAR); | |
| ValueRange domRange = range(DAY_OF_MONTH); | |
| int dom = domRange.checkValidIntValue(fieldValues.remove(DAY_OF_MONTH), DAY_OF_MONTH); | |
| if (resolverStyle == ResolverStyle.SMART) { // previous valid | |
| try { | |
| return date(y, moy, dom); | |
| } catch (DateTimeException ex) { | |
| return date(y, moy, 1).with(TemporalAdjusters.lastDayOfMonth()); | |
| } | |
| } | |
| return date(y, moy, dom); | |
| } | |
| ChronoLocalDate resolveYD(Map<TemporalField, Long> fieldValues, ResolverStyle resolverStyle) { | |
| int y = range(YEAR).checkValidIntValue(fieldValues.remove(YEAR), YEAR); | |
| if (resolverStyle == ResolverStyle.LENIENT) { | |
| long days = Math.subtractExact(fieldValues.remove(DAY_OF_YEAR), 1); | |
| return dateYearDay(y, 1).plus(days, DAYS); | |
| } | |
| int doy = range(DAY_OF_YEAR).checkValidIntValue(fieldValues.remove(DAY_OF_YEAR), DAY_OF_YEAR); | |
| return dateYearDay(y, doy); // smart is same as strict | |
| } | |
| ChronoLocalDate resolveYMAA(Map<TemporalField, Long> fieldValues, ResolverStyle resolverStyle) { | |
| int y = range(YEAR).checkValidIntValue(fieldValues.remove(YEAR), YEAR); | |
| if (resolverStyle == ResolverStyle.LENIENT) { | |
| long months = Math.subtractExact(fieldValues.remove(MONTH_OF_YEAR), 1); | |
| long weeks = Math.subtractExact(fieldValues.remove(ALIGNED_WEEK_OF_MONTH), 1); | |
| long days = Math.subtractExact(fieldValues.remove(ALIGNED_DAY_OF_WEEK_IN_MONTH), 1); | |
| return date(y, 1, 1).plus(months, MONTHS).plus(weeks, WEEKS).plus(days, DAYS); | |
| } | |
| int moy = range(MONTH_OF_YEAR).checkValidIntValue(fieldValues.remove(MONTH_OF_YEAR), MONTH_OF_YEAR); | |
| int aw = range(ALIGNED_WEEK_OF_MONTH).checkValidIntValue(fieldValues.remove(ALIGNED_WEEK_OF_MONTH), ALIGNED_WEEK_OF_MONTH); | |
| int ad = range(ALIGNED_DAY_OF_WEEK_IN_MONTH).checkValidIntValue(fieldValues.remove(ALIGNED_DAY_OF_WEEK_IN_MONTH), ALIGNED_DAY_OF_WEEK_IN_MONTH); | |
| ChronoLocalDate date = date(y, moy, 1).plus((aw - 1) * 7 + (ad - 1), DAYS); | |
| if (resolverStyle == ResolverStyle.STRICT && date.get(MONTH_OF_YEAR) != moy) { | |
| throw new DateTimeException("Strict mode rejected resolved date as it is in a different month"); | |
| } | |
| return date; | |
| } | |
| ChronoLocalDate resolveYMAD(Map<TemporalField, Long> fieldValues, ResolverStyle resolverStyle) { | |
| int y = range(YEAR).checkValidIntValue(fieldValues.remove(YEAR), YEAR); | |
| if (resolverStyle == ResolverStyle.LENIENT) { | |
| long months = Math.subtractExact(fieldValues.remove(MONTH_OF_YEAR), 1); | |
| long weeks = Math.subtractExact(fieldValues.remove(ALIGNED_WEEK_OF_MONTH), 1); | |
| long dow = Math.subtractExact(fieldValues.remove(DAY_OF_WEEK), 1); | |
| return resolveAligned(date(y, 1, 1), months, weeks, dow); | |
| } | |
| int moy = range(MONTH_OF_YEAR).checkValidIntValue(fieldValues.remove(MONTH_OF_YEAR), MONTH_OF_YEAR); | |
| int aw = range(ALIGNED_WEEK_OF_MONTH).checkValidIntValue(fieldValues.remove(ALIGNED_WEEK_OF_MONTH), ALIGNED_WEEK_OF_MONTH); | |
| int dow = range(DAY_OF_WEEK).checkValidIntValue(fieldValues.remove(DAY_OF_WEEK), DAY_OF_WEEK); | |
| ChronoLocalDate date = date(y, moy, 1).plus((aw - 1) * 7, DAYS).with(nextOrSame(DayOfWeek.of(dow))); | |
| if (resolverStyle == ResolverStyle.STRICT && date.get(MONTH_OF_YEAR) != moy) { | |
| throw new DateTimeException("Strict mode rejected resolved date as it is in a different month"); | |
| } | |
| return date; | |
| } | |
| ChronoLocalDate resolveYAA(Map<TemporalField, Long> fieldValues, ResolverStyle resolverStyle) { | |
| int y = range(YEAR).checkValidIntValue(fieldValues.remove(YEAR), YEAR); | |
| if (resolverStyle == ResolverStyle.LENIENT) { | |
| long weeks = Math.subtractExact(fieldValues.remove(ALIGNED_WEEK_OF_YEAR), 1); | |
| long days = Math.subtractExact(fieldValues.remove(ALIGNED_DAY_OF_WEEK_IN_YEAR), 1); | |
| return dateYearDay(y, 1).plus(weeks, WEEKS).plus(days, DAYS); | |
| } | |
| int aw = range(ALIGNED_WEEK_OF_YEAR).checkValidIntValue(fieldValues.remove(ALIGNED_WEEK_OF_YEAR), ALIGNED_WEEK_OF_YEAR); | |
| int ad = range(ALIGNED_DAY_OF_WEEK_IN_YEAR).checkValidIntValue(fieldValues.remove(ALIGNED_DAY_OF_WEEK_IN_YEAR), ALIGNED_DAY_OF_WEEK_IN_YEAR); | |
| ChronoLocalDate date = dateYearDay(y, 1).plus((aw - 1) * 7 + (ad - 1), DAYS); | |
| if (resolverStyle == ResolverStyle.STRICT && date.get(YEAR) != y) { | |
| throw new DateTimeException("Strict mode rejected resolved date as it is in a different year"); | |
| } | |
| return date; | |
| } | |
| ChronoLocalDate resolveYAD(Map<TemporalField, Long> fieldValues, ResolverStyle resolverStyle) { | |
| int y = range(YEAR).checkValidIntValue(fieldValues.remove(YEAR), YEAR); | |
| if (resolverStyle == ResolverStyle.LENIENT) { | |
| long weeks = Math.subtractExact(fieldValues.remove(ALIGNED_WEEK_OF_YEAR), 1); | |
| long dow = Math.subtractExact(fieldValues.remove(DAY_OF_WEEK), 1); | |
| return resolveAligned(dateYearDay(y, 1), 0, weeks, dow); | |
| } | |
| int aw = range(ALIGNED_WEEK_OF_YEAR).checkValidIntValue(fieldValues.remove(ALIGNED_WEEK_OF_YEAR), ALIGNED_WEEK_OF_YEAR); | |
| int dow = range(DAY_OF_WEEK).checkValidIntValue(fieldValues.remove(DAY_OF_WEEK), DAY_OF_WEEK); | |
| ChronoLocalDate date = dateYearDay(y, 1).plus((aw - 1) * 7, DAYS).with(nextOrSame(DayOfWeek.of(dow))); | |
| if (resolverStyle == ResolverStyle.STRICT && date.get(YEAR) != y) { | |
| throw new DateTimeException("Strict mode rejected resolved date as it is in a different year"); | |
| } | |
| return date; | |
| } | |
| ChronoLocalDate resolveAligned(ChronoLocalDate base, long months, long weeks, long dow) { | |
| ChronoLocalDate date = base.plus(months, MONTHS).plus(weeks, WEEKS); | |
| if (dow > 7) { | |
| date = date.plus((dow - 1) / 7, WEEKS); | |
| dow = ((dow - 1) % 7) + 1; | |
| } else if (dow < 1) { | |
| date = date.plus(Math.subtractExact(dow, 7) / 7, WEEKS); | |
| dow = ((dow + 6) % 7) + 1; | |
| } | |
| return date.with(nextOrSame(DayOfWeek.of((int) dow))); | |
| } | |
| /** | |
| * Adds a field-value pair to the map, checking for conflicts. | |
| * <p> | |
| * If the field is not already present, then the field-value pair is added to the map. | |
| * If the field is already present and it has the same value as that specified, no action occurs. | |
| * If the field is already present and it has a different value to that specified, then | |
| * an exception is thrown. | |
| * | |
| * @param field the field to add, not null | |
| * @param value the value to add, not null | |
| * @throws java.time.DateTimeException if the field is already present with a different value | |
| */ | |
| void addFieldValue(Map<TemporalField, Long> fieldValues, ChronoField field, long value) { | |
| Long old = fieldValues.get(field); // check first for better error message | |
| if (old != null && old.longValue() != value) { | |
| throw new DateTimeException("Conflict found: " + field + " " + old + " differs from " + field + " " + value); | |
| } | |
| fieldValues.put(field, value); | |
| } | |
| //----------------------------------------------------------------------- | |
| /** | |
| * Compares this chronology to another chronology. | |
| * <p> | |
| * The comparison order first by the chronology ID string, then by any | |
| * additional information specific to the subclass. | |
| * It is "consistent with equals", as defined by {@link Comparable}. | |
| * | |
| * @implSpec | |
| * This implementation compares the chronology ID. | |
| * Subclasses must compare any additional state that they store. | |
| * | |
| * @param other the other chronology to compare to, not null | |
| * @return the comparator value, that is this ID string compared with the {@code other}'s ID string | |
| */ | |
| @Override | |
| public int compareTo(Chronology other) { | |
| return getId().compareTo(other.getId()); | |
| } | |
| /** | |
| * Checks if this chronology is equal to another chronology. | |
| * <p> | |
| * The comparison is based on the entire state of the object. | |
| * | |
| * @implSpec | |
| * This implementation checks the type and calls | |
| * {@link #compareTo(java.time.chrono.Chronology)}. | |
| * | |
| * @param obj the object to check, null returns false | |
| * @return true if this is equal to the other chronology | |
| */ | |
| @Override | |
| public boolean equals(Object obj) { | |
| if (this == obj) { | |
| return true; | |
| } | |
| if (obj instanceof AbstractChronology) { | |
| return compareTo((AbstractChronology) obj) == 0; | |
| } | |
| return false; | |
| } | |
| /** | |
| * A hash code for this chronology. | |
| * <p> | |
| * The hash code should be based on the entire state of the object. | |
| * | |
| * @implSpec | |
| * This implementation is based on the chronology ID and class. | |
| * Subclasses should add any additional state that they store. | |
| * | |
| * @return a suitable hash code | |
| */ | |
| @Override | |
| public int hashCode() { | |
| return getClass().hashCode() ^ getId().hashCode(); | |
| } | |
| //----------------------------------------------------------------------- | |
| /** | |
| * Outputs this chronology as a {@code String}, using the chronology ID. | |
| * | |
| * @return a string representation of this chronology, not null | |
| */ | |
| @Override | |
| public String toString() { | |
| return getId(); | |
| } | |
| //----------------------------------------------------------------------- | |
| /** | |
| * Writes the Chronology using a | |
| * <a href="{@docRoot}/serialized-form.html#java.time.chrono.Ser">dedicated serialized form</a>. | |
| * <pre> | |
| * out.writeByte(1); // identifies this as a Chronology | |
| * out.writeUTF(getId()); | |
| * </pre> | |
| * | |
| * @return the instance of {@code Ser}, not null | |
| */ | |
| @java.io.Serial | |
| Object writeReplace() { | |
| return new Ser(Ser.CHRONO_TYPE, (Serializable)this); | |
| } | |
| /** | |
| * Defend against malicious streams. | |
| * | |
| * @param s the stream to read | |
| * @throws java.io.InvalidObjectException always | |
| */ | |
| @java.io.Serial | |
| private void readObject(ObjectInputStream s) throws ObjectStreamException { | |
| throw new InvalidObjectException("Deserialization via serialization delegate"); | |
| } | |
| void writeExternal(DataOutput out) throws IOException { | |
| out.writeUTF(getId()); | |
| } | |
| static Chronology readExternal(DataInput in) throws IOException { | |
| String id = in.readUTF(); | |
| return Chronology.of(id); | |
| } | |
| } |