org.threeten.bp.chrono.ChronoLocalDateTimeImpl Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of threetenbp Show documentation
Show all versions of threetenbp Show documentation
Backport of JSR-310 from JDK 8 to JDK 7 and JDK 6. NOT an implementation of the JSR.
The newest version!
/*
* Copyright (c) 2007-present, 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 org.threeten.bp.chrono;
import static org.threeten.bp.temporal.ChronoField.EPOCH_DAY;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import java.io.Serializable;
import org.threeten.bp.LocalTime;
import org.threeten.bp.ZoneId;
import org.threeten.bp.jdk8.Jdk8Methods;
import org.threeten.bp.temporal.ChronoField;
import org.threeten.bp.temporal.ChronoUnit;
import org.threeten.bp.temporal.Temporal;
import org.threeten.bp.temporal.TemporalAdjuster;
import org.threeten.bp.temporal.TemporalField;
import org.threeten.bp.temporal.TemporalUnit;
import org.threeten.bp.temporal.ValueRange;
/**
* A date-time without a time-zone for the calendar neutral API.
*
* {@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.
*
* 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}.
*
*
Specification for implementors
* This class is immutable and thread-safe.
*
* @param the date type
*/
final class ChronoLocalDateTimeImpl
extends ChronoLocalDateTime
implements Temporal, TemporalAdjuster, Serializable {
/**
* Serialization version.
*/
private static final long serialVersionUID = 4556003607393004514L;
/**
* Hours per minute.
*/
private static final int HOURS_PER_DAY = 24;
/**
* Minutes per hour.
*/
private static final int MINUTES_PER_HOUR = 60;
/**
* Minutes per day.
*/
private static final int MINUTES_PER_DAY = MINUTES_PER_HOUR * HOURS_PER_DAY;
/**
* Seconds per minute.
*/
private static final int SECONDS_PER_MINUTE = 60;
/**
* Seconds per hour.
*/
private static final int SECONDS_PER_HOUR = SECONDS_PER_MINUTE * MINUTES_PER_HOUR;
/**
* Seconds per day.
*/
private static final int SECONDS_PER_DAY = SECONDS_PER_HOUR * HOURS_PER_DAY;
/**
* Milliseconds per day.
*/
private static final long MILLIS_PER_DAY = SECONDS_PER_DAY * 1000L;
/**
* Microseconds per day.
*/
private static final long MICROS_PER_DAY = SECONDS_PER_DAY * 1000000L;
/**
* Nanos per second.
*/
private static final long NANOS_PER_SECOND = 1000000000L;
/**
* Nanos per minute.
*/
private static final long NANOS_PER_MINUTE = NANOS_PER_SECOND * SECONDS_PER_MINUTE;
/**
* Nanos per hour.
*/
private static final long NANOS_PER_HOUR = NANOS_PER_MINUTE * MINUTES_PER_HOUR;
/**
* Nanos per day.
*/
private static final long NANOS_PER_DAY = NANOS_PER_HOUR * HOURS_PER_DAY;
/**
* The date part.
*/
private final D date;
/**
* The time part.
*/
private final 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 ChronoLocalDateTimeImpl of(R date, LocalTime time) {
return new ChronoLocalDateTimeImpl(date, time);
}
/**
* 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) {
Jdk8Methods.requireNonNull(date, "date");
Jdk8Methods.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 with(Temporal newDate, LocalTime newTime) {
if (date == newDate && time == newTime) {
return this;
}
// Validate that the new DateTime is a ChronoLocalDate (and not something else)
D cd = date.getChronology().ensureChronoLocalDate(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) {
return field.isDateBased() || field.isTimeBased();
}
return field != null && field.isSupportedBy(this);
}
@Override
public boolean isSupported(TemporalUnit unit) {
if (unit instanceof ChronoUnit) {
return unit.isDateBased() || unit.isTimeBased();
}
return unit != null && unit.isSupportedBy(this);
}
@Override
public ValueRange range(TemporalField field) {
if (field instanceof ChronoField) {
return (field.isTimeBased() ? time.range(field) : date.range(field));
}
return field.rangeRefinedBy(this);
}
@Override
public int get(TemporalField field) {
if (field instanceof ChronoField) {
return (field.isTimeBased() ? time.get(field) : date.get(field));
}
return range(field).checkValidIntValue(getLong(field), field);
}
@Override
public long getLong(TemporalField field) {
if (field instanceof ChronoField) {
return (field.isTimeBased() ? time.getLong(field) : date.getLong(field));
}
return field.getFrom(this);
}
//-----------------------------------------------------------------------
@Override
public ChronoLocalDateTimeImpl with(TemporalAdjuster adjuster) {
if (adjuster instanceof ChronoLocalDate) {
// The Chrono 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 date.getChronology().ensureChronoLocalDateTime((ChronoLocalDateTimeImpl) adjuster);
}
return date.getChronology().ensureChronoLocalDateTime((ChronoLocalDateTimeImpl) adjuster.adjustInto(this));
}
@Override
public ChronoLocalDateTimeImpl with(TemporalField field, long newValue) {
if (field instanceof ChronoField) {
if (field.isTimeBased()) {
return with(date, time.with(field, newValue));
} else {
return with(date.with(field, newValue), time);
}
}
return date.getChronology().ensureChronoLocalDateTime(field.adjustInto(this, newValue));
}
//-----------------------------------------------------------------------
@Override
public ChronoLocalDateTimeImpl 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 date.getChronology().ensureChronoLocalDateTime(unit.addTo(this, amountToAdd));
}
private ChronoLocalDateTimeImpl plusDays(long days) {
return with(date.plus(days, ChronoUnit.DAYS), time);
}
private ChronoLocalDateTimeImpl plusHours(long hours) {
return plusWithOverflow(date, hours, 0, 0, 0);
}
private ChronoLocalDateTimeImpl plusMinutes(long minutes) {
return plusWithOverflow(date, 0, minutes, 0, 0);
}
ChronoLocalDateTimeImpl plusSeconds(long seconds) {
return plusWithOverflow(date, 0, 0, seconds, 0);
}
private ChronoLocalDateTimeImpl plusNanos(long nanos) {
return plusWithOverflow(date, 0, 0, 0, nanos);
}
//-----------------------------------------------------------------------
private ChronoLocalDateTimeImpl 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 += Jdk8Methods.floorDiv(totNanos, NANOS_PER_DAY);
long newNoD = Jdk8Methods.floorMod(totNanos, NANOS_PER_DAY);
LocalTime newTime = (newNoD == curNoD ? time : LocalTime.ofNanoOfDay(newNoD));
return with(newDate.plus(totDays, ChronoUnit.DAYS), newTime);
}
//-----------------------------------------------------------------------
@Override
public ChronoZonedDateTime atZone(ZoneId zoneId) {
return ChronoZonedDateTimeImpl.ofBest(this, zoneId, null);
}
//-----------------------------------------------------------------------
@Override
public long until(Temporal endExclusive, TemporalUnit unit) {
@SuppressWarnings("unchecked")
ChronoLocalDateTime end = (ChronoLocalDateTime) toLocalDate().getChronology().localDateTime(endExclusive);
if (unit instanceof ChronoUnit) {
ChronoUnit f = (ChronoUnit) unit;
if (f.isTimeBased()) {
long amount = end.getLong(EPOCH_DAY) - date.getLong(EPOCH_DAY);
switch (f) {
case NANOS: amount = Jdk8Methods.safeMultiply(amount, NANOS_PER_DAY); break;
case MICROS: amount = Jdk8Methods.safeMultiply(amount, MICROS_PER_DAY); break;
case MILLIS: amount = Jdk8Methods.safeMultiply(amount, MILLIS_PER_DAY); break;
case SECONDS: amount = Jdk8Methods.safeMultiply(amount, SECONDS_PER_DAY); break;
case MINUTES: amount = Jdk8Methods.safeMultiply(amount, MINUTES_PER_DAY); break;
case HOURS: amount = Jdk8Methods.safeMultiply(amount, HOURS_PER_DAY); break;
case HALF_DAYS: amount = Jdk8Methods.safeMultiply(amount, 2); break;
}
return Jdk8Methods.safeAdd(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);
}
return unit.between(this, end);
}
//-----------------------------------------------------------------------
private Object writeReplace() {
return new Ser(Ser.CHRONO_LOCALDATETIME_TYPE, this);
}
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);
}
}