| /* |
| * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * This file is available under and governed by the GNU General Public |
| * License version 2 only, as published by the Free Software Foundation. |
| * However, the following notice accompanied the original version of this |
| * file: |
| * |
| * Copyright (c) 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.Comparator; |
| 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 { |
| |
| /** |
| * ChronoLocalDate order constant. |
| */ |
| static final Comparator<ChronoLocalDate> DATE_ORDER = |
| (Comparator<ChronoLocalDate> & Serializable) (date1, date2) -> { |
| return Long.compare(date1.toEpochDay(), date2.toEpochDay()); |
| }; |
| /** |
| * ChronoLocalDateTime order constant. |
| */ |
| static final Comparator<ChronoLocalDateTime<? extends ChronoLocalDate>> DATE_TIME_ORDER = |
| (Comparator<ChronoLocalDateTime<? extends ChronoLocalDate>> & Serializable) (dateTime1, dateTime2) -> { |
| int cmp = Long.compare(dateTime1.toLocalDate().toEpochDay(), dateTime2.toLocalDate().toEpochDay()); |
| if (cmp == 0) { |
| cmp = Long.compare(dateTime1.toLocalTime().toNanoOfDay(), dateTime2.toLocalTime().toNanoOfDay()); |
| } |
| return cmp; |
| }; |
| /** |
| * ChronoZonedDateTime order constant. |
| */ |
| static final Comparator<ChronoZonedDateTime<?>> INSTANT_ORDER = |
| (Comparator<ChronoZonedDateTime<?>> & Serializable) (dateTime1, dateTime2) -> { |
| int cmp = Long.compare(dateTime1.toEpochSecond(), dateTime2.toEpochSecond()); |
| if (cmp == 0) { |
| cmp = Long.compare(dateTime1.toLocalTime().getNano(), dateTime2.toLocalTime().getNano()); |
| } |
| return cmp; |
| }; |
| |
| /** |
| * 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 |
| @SuppressWarnings("rawtypes") |
| 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 |
| @SuppressWarnings("rawtypes") |
| 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 |
| @SuppressWarnings("rawtypes") |
| 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 |
| @SuppressWarnings("rawtypes") |
| 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, negative if less, positive if greater |
| */ |
| @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="../../../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 |
| */ |
| Object writeReplace() { |
| return new Ser(Ser.CHRONO_TYPE, this); |
| } |
| |
| /** |
| * Defend against malicious streams. |
| * |
| * @param s the stream to read |
| * @throws java.io.InvalidObjectException always |
| */ |
| 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); |
| } |
| |
| } |
