| /* |
| * 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) 2007-2012, 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.EPOCH_DAY; |
| |
| import java.io.IOException; |
| import java.io.InvalidObjectException; |
| import java.io.ObjectInput; |
| import java.io.ObjectInputStream; |
| import java.io.ObjectOutput; |
| import java.io.Serializable; |
| import java.time.LocalTime; |
| import java.time.ZoneId; |
| import java.time.temporal.ChronoField; |
| import java.time.temporal.ChronoUnit; |
| import java.time.temporal.Temporal; |
| import java.time.temporal.TemporalAdjuster; |
| import java.time.temporal.TemporalField; |
| import java.time.temporal.TemporalUnit; |
| import java.time.temporal.ValueRange; |
| import java.util.Objects; |
| |
| /** |
| * A date-time without a time-zone for the calendar neutral API. |
| * <p> |
| * {@code ChronoLocalDateTime} is an immutable date-time object that represents a date-time, often |
| * viewed as year-month-day-hour-minute-second. This object can also access other |
| * fields such as day-of-year, day-of-week and week-of-year. |
| * <p> |
| * This class stores all date and time fields, to a precision of nanoseconds. |
| * It does not store or represent a time-zone. For example, the value |
| * "2nd October 2007 at 13:45.30.123456789" can be stored in an {@code ChronoLocalDateTime}. |
| * |
| * @implSpec |
| * This class is immutable and thread-safe. |
| * @serial |
| * @param <D> the concrete type for the date of this date-time |
| * @since 1.8 |
| */ |
| final class ChronoLocalDateTimeImpl<D extends ChronoLocalDate> |
| implements ChronoLocalDateTime<D>, Temporal, TemporalAdjuster, Serializable { |
| |
| /** |
| * Serialization version. |
| */ |
| private static final long serialVersionUID = 4556003607393004514L; |
| /** |
| * Hours per day. |
| */ |
| static final int HOURS_PER_DAY = 24; |
| /** |
| * Minutes per hour. |
| */ |
| static final int MINUTES_PER_HOUR = 60; |
| /** |
| * Minutes per day. |
| */ |
| static final int MINUTES_PER_DAY = MINUTES_PER_HOUR * HOURS_PER_DAY; |
| /** |
| * Seconds per minute. |
| */ |
| static final int SECONDS_PER_MINUTE = 60; |
| /** |
| * Seconds per hour. |
| */ |
| static final int SECONDS_PER_HOUR = SECONDS_PER_MINUTE * MINUTES_PER_HOUR; |
| /** |
| * Seconds per day. |
| */ |
| static final int SECONDS_PER_DAY = SECONDS_PER_HOUR * HOURS_PER_DAY; |
| /** |
| * Milliseconds per day. |
| */ |
| static final long MILLIS_PER_DAY = SECONDS_PER_DAY * 1000L; |
| /** |
| * Microseconds per day. |
| */ |
| static final long MICROS_PER_DAY = SECONDS_PER_DAY * 1000_000L; |
| /** |
| * Nanos per second. |
| */ |
| static final long NANOS_PER_SECOND = 1000_000_000L; |
| /** |
| * Nanos per minute. |
| */ |
| static final long NANOS_PER_MINUTE = NANOS_PER_SECOND * SECONDS_PER_MINUTE; |
| /** |
| * Nanos per hour. |
| */ |
| static final long NANOS_PER_HOUR = NANOS_PER_MINUTE * MINUTES_PER_HOUR; |
| /** |
| * Nanos per day. |
| */ |
| static final long NANOS_PER_DAY = NANOS_PER_HOUR * HOURS_PER_DAY; |
| |
| /** |
| * The date part. |
| */ |
| private final transient D date; |
| /** |
| * The time part. |
| */ |
| private final transient LocalTime time; |
| |
| //----------------------------------------------------------------------- |
| /** |
| * Obtains an instance of {@code ChronoLocalDateTime} from a date and time. |
| * |
| * @param date the local date, not null |
| * @param time the local time, not null |
| * @return the local date-time, not null |
| */ |
| static <R extends ChronoLocalDate> ChronoLocalDateTimeImpl<R> of(R date, LocalTime time) { |
| return new ChronoLocalDateTimeImpl<>(date, time); |
| } |
| |
| /** |
| * Casts the {@code Temporal} to {@code ChronoLocalDateTime} ensuring it bas the specified chronology. |
| * |
| * @param chrono the chronology to check for, not null |
| * @param temporal a date-time to cast, not null |
| * @return the date-time checked and cast to {@code ChronoLocalDateTime}, not null |
| * @throws ClassCastException if the date-time cannot be cast to ChronoLocalDateTimeImpl |
| * or the chronology is not equal this Chronology |
| */ |
| static <R extends ChronoLocalDate> ChronoLocalDateTimeImpl<R> ensureValid(Chronology chrono, Temporal temporal) { |
| @SuppressWarnings("unchecked") |
| ChronoLocalDateTimeImpl<R> other = (ChronoLocalDateTimeImpl<R>) temporal; |
| if (chrono.equals(other.getChronology()) == false) { |
| throw new ClassCastException("Chronology mismatch, required: " + chrono.getId() |
| + ", actual: " + other.getChronology().getId()); |
| } |
| return other; |
| } |
| |
| /** |
| * Constructor. |
| * |
| * @param date the date part of the date-time, not null |
| * @param time the time part of the date-time, not null |
| */ |
| private ChronoLocalDateTimeImpl(D date, LocalTime time) { |
| Objects.requireNonNull(date, "date"); |
| Objects.requireNonNull(time, "time"); |
| this.date = date; |
| this.time = time; |
| } |
| |
| /** |
| * Returns a copy of this date-time with the new date and time, checking |
| * to see if a new object is in fact required. |
| * |
| * @param newDate the date of the new date-time, not null |
| * @param newTime the time of the new date-time, not null |
| * @return the date-time, not null |
| */ |
| private ChronoLocalDateTimeImpl<D> with(Temporal newDate, LocalTime newTime) { |
| if (date == newDate && time == newTime) { |
| return this; |
| } |
| // Validate that the new Temporal is a ChronoLocalDate (and not something else) |
| D cd = ChronoLocalDateImpl.ensureValid(date.getChronology(), newDate); |
| return new ChronoLocalDateTimeImpl<>(cd, newTime); |
| } |
| |
| //----------------------------------------------------------------------- |
| @Override |
| public D toLocalDate() { |
| return date; |
| } |
| |
| @Override |
| public LocalTime toLocalTime() { |
| return time; |
| } |
| |
| //----------------------------------------------------------------------- |
| @Override |
| public boolean isSupported(TemporalField field) { |
| if (field instanceof ChronoField) { |
| ChronoField f = (ChronoField) field; |
| return f.isDateBased() || f.isTimeBased(); |
| } |
| return field != null && field.isSupportedBy(this); |
| } |
| |
| @Override |
| public ValueRange range(TemporalField field) { |
| if (field instanceof ChronoField) { |
| ChronoField f = (ChronoField) field; |
| return (f.isTimeBased() ? time.range(field) : date.range(field)); |
| } |
| return field.rangeRefinedBy(this); |
| } |
| |
| @Override |
| public int get(TemporalField field) { |
| if (field instanceof ChronoField) { |
| ChronoField f = (ChronoField) field; |
| return (f.isTimeBased() ? time.get(field) : date.get(field)); |
| } |
| return range(field).checkValidIntValue(getLong(field), field); |
| } |
| |
| @Override |
| public long getLong(TemporalField field) { |
| if (field instanceof ChronoField) { |
| ChronoField f = (ChronoField) field; |
| return (f.isTimeBased() ? time.getLong(field) : date.getLong(field)); |
| } |
| return field.getFrom(this); |
| } |
| |
| //----------------------------------------------------------------------- |
| @SuppressWarnings("unchecked") |
| @Override |
| public ChronoLocalDateTimeImpl<D> with(TemporalAdjuster adjuster) { |
| if (adjuster instanceof ChronoLocalDate) { |
| // The Chronology is checked in with(date,time) |
| return with((ChronoLocalDate) adjuster, time); |
| } else if (adjuster instanceof LocalTime) { |
| return with(date, (LocalTime) adjuster); |
| } else if (adjuster instanceof ChronoLocalDateTimeImpl) { |
| return ChronoLocalDateTimeImpl.ensureValid(date.getChronology(), (ChronoLocalDateTimeImpl<?>) adjuster); |
| } |
| return ChronoLocalDateTimeImpl.ensureValid(date.getChronology(), (ChronoLocalDateTimeImpl<?>) adjuster.adjustInto(this)); |
| } |
| |
| @Override |
| public ChronoLocalDateTimeImpl<D> with(TemporalField field, long newValue) { |
| if (field instanceof ChronoField) { |
| ChronoField f = (ChronoField) field; |
| if (f.isTimeBased()) { |
| return with(date, time.with(field, newValue)); |
| } else { |
| return with(date.with(field, newValue), time); |
| } |
| } |
| return ChronoLocalDateTimeImpl.ensureValid(date.getChronology(), field.adjustInto(this, newValue)); |
| } |
| |
| //----------------------------------------------------------------------- |
| @Override |
| public ChronoLocalDateTimeImpl<D> plus(long amountToAdd, TemporalUnit unit) { |
| if (unit instanceof ChronoUnit) { |
| ChronoUnit f = (ChronoUnit) unit; |
| switch (f) { |
| case NANOS: return plusNanos(amountToAdd); |
| case MICROS: return plusDays(amountToAdd / MICROS_PER_DAY).plusNanos((amountToAdd % MICROS_PER_DAY) * 1000); |
| case MILLIS: return plusDays(amountToAdd / MILLIS_PER_DAY).plusNanos((amountToAdd % MILLIS_PER_DAY) * 1000000); |
| case SECONDS: return plusSeconds(amountToAdd); |
| case MINUTES: return plusMinutes(amountToAdd); |
| case HOURS: return plusHours(amountToAdd); |
| case HALF_DAYS: return plusDays(amountToAdd / 256).plusHours((amountToAdd % 256) * 12); // no overflow (256 is multiple of 2) |
| } |
| return with(date.plus(amountToAdd, unit), time); |
| } |
| return ChronoLocalDateTimeImpl.ensureValid(date.getChronology(), unit.addTo(this, amountToAdd)); |
| } |
| |
| private ChronoLocalDateTimeImpl<D> plusDays(long days) { |
| return with(date.plus(days, ChronoUnit.DAYS), time); |
| } |
| |
| private ChronoLocalDateTimeImpl<D> plusHours(long hours) { |
| return plusWithOverflow(date, hours, 0, 0, 0); |
| } |
| |
| private ChronoLocalDateTimeImpl<D> plusMinutes(long minutes) { |
| return plusWithOverflow(date, 0, minutes, 0, 0); |
| } |
| |
| ChronoLocalDateTimeImpl<D> plusSeconds(long seconds) { |
| return plusWithOverflow(date, 0, 0, seconds, 0); |
| } |
| |
| private ChronoLocalDateTimeImpl<D> plusNanos(long nanos) { |
| return plusWithOverflow(date, 0, 0, 0, nanos); |
| } |
| |
| //----------------------------------------------------------------------- |
| private ChronoLocalDateTimeImpl<D> plusWithOverflow(D newDate, long hours, long minutes, long seconds, long nanos) { |
| // 9223372036854775808 long, 2147483648 int |
| if ((hours | minutes | seconds | nanos) == 0) { |
| return with(newDate, time); |
| } |
| long totDays = nanos / NANOS_PER_DAY + // max/24*60*60*1B |
| seconds / SECONDS_PER_DAY + // max/24*60*60 |
| minutes / MINUTES_PER_DAY + // max/24*60 |
| hours / HOURS_PER_DAY; // max/24 |
| long totNanos = nanos % NANOS_PER_DAY + // max 86400000000000 |
| (seconds % SECONDS_PER_DAY) * NANOS_PER_SECOND + // max 86400000000000 |
| (minutes % MINUTES_PER_DAY) * NANOS_PER_MINUTE + // max 86400000000000 |
| (hours % HOURS_PER_DAY) * NANOS_PER_HOUR; // max 86400000000000 |
| long curNoD = time.toNanoOfDay(); // max 86400000000000 |
| totNanos = totNanos + curNoD; // total 432000000000000 |
| totDays += Math.floorDiv(totNanos, NANOS_PER_DAY); |
| long newNoD = Math.floorMod(totNanos, NANOS_PER_DAY); |
| LocalTime newTime = (newNoD == curNoD ? time : LocalTime.ofNanoOfDay(newNoD)); |
| return with(newDate.plus(totDays, ChronoUnit.DAYS), newTime); |
| } |
| |
| //----------------------------------------------------------------------- |
| @Override |
| public ChronoZonedDateTime<D> atZone(ZoneId zone) { |
| return ChronoZonedDateTimeImpl.ofBest(this, zone, null); |
| } |
| |
| //----------------------------------------------------------------------- |
| @Override |
| public long until(Temporal endExclusive, TemporalUnit unit) { |
| Objects.requireNonNull(endExclusive, "endExclusive"); |
| @SuppressWarnings("unchecked") |
| ChronoLocalDateTime<D> end = (ChronoLocalDateTime<D>) getChronology().localDateTime(endExclusive); |
| if (unit instanceof ChronoUnit) { |
| if (unit.isTimeBased()) { |
| long amount = end.getLong(EPOCH_DAY) - date.getLong(EPOCH_DAY); |
| switch ((ChronoUnit) unit) { |
| case NANOS: amount = Math.multiplyExact(amount, NANOS_PER_DAY); break; |
| case MICROS: amount = Math.multiplyExact(amount, MICROS_PER_DAY); break; |
| case MILLIS: amount = Math.multiplyExact(amount, MILLIS_PER_DAY); break; |
| case SECONDS: amount = Math.multiplyExact(amount, SECONDS_PER_DAY); break; |
| case MINUTES: amount = Math.multiplyExact(amount, MINUTES_PER_DAY); break; |
| case HOURS: amount = Math.multiplyExact(amount, HOURS_PER_DAY); break; |
| case HALF_DAYS: amount = Math.multiplyExact(amount, 2); break; |
| } |
| return Math.addExact(amount, time.until(end.toLocalTime(), unit)); |
| } |
| ChronoLocalDate endDate = end.toLocalDate(); |
| if (end.toLocalTime().isBefore(time)) { |
| endDate = endDate.minus(1, ChronoUnit.DAYS); |
| } |
| return date.until(endDate, unit); |
| } |
| Objects.requireNonNull(unit, "unit"); |
| return unit.between(this, end); |
| } |
| |
| //----------------------------------------------------------------------- |
| /** |
| * Writes the ChronoLocalDateTime using a |
| * <a href="../../../serialized-form.html#java.time.chrono.Ser">dedicated serialized form</a>. |
| * @serialData |
| * <pre> |
| * out.writeByte(2); // identifies a ChronoLocalDateTime |
| * out.writeObject(toLocalDate()); |
| * out.witeObject(toLocalTime()); |
| * </pre> |
| * |
| * @return the instance of {@code Ser}, not null |
| */ |
| private Object writeReplace() { |
| return new Ser(Ser.CHRONO_LOCAL_DATE_TIME_TYPE, this); |
| } |
| |
| /** |
| * Defend against malicious streams. |
| * |
| * @param s the stream to read |
| * @throws InvalidObjectException always |
| */ |
| private void readObject(ObjectInputStream s) throws InvalidObjectException { |
| throw new InvalidObjectException("Deserialization via serialization delegate"); |
| } |
| |
| void writeExternal(ObjectOutput out) throws IOException { |
| out.writeObject(date); |
| out.writeObject(time); |
| } |
| |
| static ChronoLocalDateTime<?> readExternal(ObjectInput in) throws IOException, ClassNotFoundException { |
| ChronoLocalDate date = (ChronoLocalDate) in.readObject(); |
| LocalTime time = (LocalTime) in.readObject(); |
| return date.atTime(time); |
| } |
| |
| //----------------------------------------------------------------------- |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) { |
| return true; |
| } |
| if (obj instanceof ChronoLocalDateTime) { |
| return compareTo((ChronoLocalDateTime<?>) obj) == 0; |
| } |
| return false; |
| } |
| |
| @Override |
| public int hashCode() { |
| return toLocalDate().hashCode() ^ toLocalTime().hashCode(); |
| } |
| |
| @Override |
| public String toString() { |
| return toLocalDate().toString() + 'T' + toLocalTime().toString(); |
| } |
| |
| } |
