--- a/jdk/src/share/classes/java/time/temporal/ChronoZonedDateTimeImpl.java Tue Feb 12 16:02:14 2013 +0400
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,353 +0,0 @@
-/*
- * 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.temporal;
-
-import static java.time.temporal.ChronoUnit.SECONDS;
-
-import java.io.IOException;
-import java.io.InvalidObjectException;
-import java.io.ObjectInput;
-import java.io.ObjectOutput;
-import java.io.ObjectStreamException;
-import java.io.Serializable;
-import java.time.DateTimeException;
-import java.time.Instant;
-import java.time.LocalDateTime;
-import java.time.ZoneId;
-import java.time.ZoneOffset;
-import java.time.zone.ZoneOffsetTransition;
-import java.time.zone.ZoneRules;
-import java.util.List;
-import java.util.Objects;
-
-/**
- * A date-time with a time-zone in the calendar neutral API.
- * <p>
- * {@code ZoneChronoDateTime} is an immutable representation of a date-time with a time-zone.
- * This class stores all date and time fields, to a precision of nanoseconds,
- * as well as a time-zone and zone offset.
- * <p>
- * The purpose of storing the time-zone is to distinguish the ambiguous case where
- * the local time-line overlaps, typically as a result of the end of daylight time.
- * Information about the local-time can be obtained using methods on the time-zone.
- *
- * <h3>Specification for implementors</h3>
- * This class is immutable and thread-safe.
- *
- * @param <C> the chronology of this date
- * @since 1.8
- */
-final class ChronoZonedDateTimeImpl<C extends Chrono<C>>
- implements ChronoZonedDateTime<C>, Serializable {
-
- /**
- * Serialization version.
- */
- private static final long serialVersionUID = -5261813987200935591L;
-
- /**
- * The local date-time.
- */
- private final ChronoLocalDateTimeImpl<C> dateTime;
- /**
- * The zone offset.
- */
- private final ZoneOffset offset;
- /**
- * The zone ID.
- */
- private final ZoneId zone;
-
- //-----------------------------------------------------------------------
- /**
- * Obtains an instance from a local date-time using the preferred offset if possible.
- *
- * @param localDateTime the local date-time, not null
- * @param zone the zone identifier, not null
- * @param preferredOffset the zone offset, null if no preference
- * @return the zoned date-time, not null
- */
- static <R extends Chrono<R>> ChronoZonedDateTime<R> ofBest(
- ChronoLocalDateTimeImpl<R> localDateTime, ZoneId zone, ZoneOffset preferredOffset) {
- Objects.requireNonNull(localDateTime, "localDateTime");
- Objects.requireNonNull(zone, "zone");
- if (zone instanceof ZoneOffset) {
- return new ChronoZonedDateTimeImpl<R>(localDateTime, (ZoneOffset) zone, zone);
- }
- ZoneRules rules = zone.getRules();
- LocalDateTime isoLDT = LocalDateTime.from(localDateTime);
- List<ZoneOffset> validOffsets = rules.getValidOffsets(isoLDT);
- ZoneOffset offset;
- if (validOffsets.size() == 1) {
- offset = validOffsets.get(0);
- } else if (validOffsets.size() == 0) {
- ZoneOffsetTransition trans = rules.getTransition(isoLDT);
- localDateTime = localDateTime.plusSeconds(trans.getDuration().getSeconds());
- offset = trans.getOffsetAfter();
- } else {
- if (preferredOffset != null && validOffsets.contains(preferredOffset)) {
- offset = preferredOffset;
- } else {
- offset = validOffsets.get(0);
- }
- }
- Objects.requireNonNull(offset, "offset"); // protect against bad ZoneRules
- return new ChronoZonedDateTimeImpl<R>(localDateTime, offset, zone);
- }
-
- /**
- * Obtains an instance from an instant using the specified time-zone.
- *
- * @param chrono the chronology, not null
- * @param instant the instant, not null
- * @param zone the zone identifier, not null
- * @return the zoned date-time, not null
- */
- static <R extends Chrono<R>> ChronoZonedDateTimeImpl<R> ofInstant(Chrono<R> chrono, Instant instant, ZoneId zone) {
- ZoneRules rules = zone.getRules();
- ZoneOffset offset = rules.getOffset(instant);
- Objects.requireNonNull(offset, "offset"); // protect against bad ZoneRules
- LocalDateTime ldt = LocalDateTime.ofEpochSecond(instant.getEpochSecond(), instant.getNano(), offset);
- ChronoLocalDateTimeImpl<R> cldt = (ChronoLocalDateTimeImpl<R>) chrono.localDateTime(ldt);
- return new ChronoZonedDateTimeImpl<R>(cldt, offset, zone);
- }
-
- /**
- * Obtains an instance from an {@code Instant}.
- *
- * @param instant the instant to create the date-time from, not null
- * @param zone the time-zone to use, validated not null
- * @return the zoned date-time, validated not null
- */
- private ChronoZonedDateTimeImpl<C> create(Instant instant, ZoneId zone) {
- return ofInstant(getDate().getChrono(), instant, zone);
- }
-
- //-----------------------------------------------------------------------
- /**
- * Constructor.
- *
- * @param dateTime the date-time, not null
- * @param offset the zone offset, not null
- * @param zone the zone ID, not null
- */
- private ChronoZonedDateTimeImpl(ChronoLocalDateTimeImpl<C> dateTime, ZoneOffset offset, ZoneId zone) {
- this.dateTime = Objects.requireNonNull(dateTime, "dateTime");
- this.offset = Objects.requireNonNull(offset, "offset");
- this.zone = Objects.requireNonNull(zone, "zone");
- }
-
- //-----------------------------------------------------------------------
- public ZoneOffset getOffset() {
- return offset;
- }
-
- @Override
- public ChronoZonedDateTime<C> withEarlierOffsetAtOverlap() {
- ZoneOffsetTransition trans = getZone().getRules().getTransition(LocalDateTime.from(this));
- if (trans != null && trans.isOverlap()) {
- ZoneOffset earlierOffset = trans.getOffsetBefore();
- if (earlierOffset.equals(offset) == false) {
- return new ChronoZonedDateTimeImpl<C>(dateTime, earlierOffset, zone);
- }
- }
- return this;
- }
-
- @Override
- public ChronoZonedDateTime<C> withLaterOffsetAtOverlap() {
- ZoneOffsetTransition trans = getZone().getRules().getTransition(LocalDateTime.from(this));
- if (trans != null) {
- ZoneOffset offset = trans.getOffsetAfter();
- if (offset.equals(getOffset()) == false) {
- return new ChronoZonedDateTimeImpl<C>(dateTime, offset, zone);
- }
- }
- return this;
- }
-
- //-----------------------------------------------------------------------
- @Override
- public ChronoLocalDateTime<C> getDateTime() {
- return dateTime;
- }
-
- public ZoneId getZone() {
- return zone;
- }
-
- public ChronoZonedDateTime<C> withZoneSameLocal(ZoneId zone) {
- return ofBest(dateTime, zone, offset);
- }
-
- @Override
- public ChronoZonedDateTime<C> withZoneSameInstant(ZoneId zone) {
- Objects.requireNonNull(zone, "zone");
- return this.zone.equals(zone) ? this : create(dateTime.toInstant(offset), zone);
- }
-
- //-----------------------------------------------------------------------
- @Override
- public boolean isSupported(TemporalField field) {
- return field instanceof ChronoField || (field != null && field.doIsSupported(this));
- }
-
- //-----------------------------------------------------------------------
- @Override
- public ChronoZonedDateTime<C> with(TemporalField field, long newValue) {
- if (field instanceof ChronoField) {
- ChronoField f = (ChronoField) field;
- switch (f) {
- case INSTANT_SECONDS: return plus(newValue - toEpochSecond(), SECONDS);
- case OFFSET_SECONDS: {
- ZoneOffset offset = ZoneOffset.ofTotalSeconds(f.checkValidIntValue(newValue));
- return create(dateTime.toInstant(offset), zone);
- }
- }
- return ofBest(dateTime.with(field, newValue), zone, offset);
- }
- return getDate().getChrono().ensureChronoZonedDateTime(field.doWith(this, newValue));
- }
-
- //-----------------------------------------------------------------------
- @Override
- public ChronoZonedDateTime<C> plus(long amountToAdd, TemporalUnit unit) {
- if (unit instanceof ChronoUnit) {
- return with(dateTime.plus(amountToAdd, unit));
- }
- return getDate().getChrono().ensureChronoZonedDateTime(unit.doPlus(this, amountToAdd)); /// TODO: Generics replacement Risk!
- }
-
- //-----------------------------------------------------------------------
- @Override
- public long periodUntil(Temporal endDateTime, TemporalUnit unit) {
- if (endDateTime instanceof ChronoZonedDateTime == false) {
- throw new DateTimeException("Unable to calculate period between objects of two different types");
- }
- @SuppressWarnings("unchecked")
- ChronoZonedDateTime<C> end = (ChronoZonedDateTime<C>) endDateTime;
- if (getDate().getChrono().equals(end.getDate().getChrono()) == false) {
- throw new DateTimeException("Unable to calculate period between two different chronologies");
- }
- if (unit instanceof ChronoUnit) {
- end = end.withZoneSameInstant(offset);
- return dateTime.periodUntil(end.getDateTime(), unit);
- }
- return unit.between(this, endDateTime).getAmount();
- }
-
- //-----------------------------------------------------------------------
- private Object writeReplace() {
- return new Ser(Ser.CHRONO_ZONE_DATE_TIME_TYPE, this);
- }
-
- /**
- * Defend against malicious streams.
- * @return never
- * @throws InvalidObjectException always
- */
- private Object readResolve() throws ObjectStreamException {
- throw new InvalidObjectException("Deserialization via serialization delegate");
- }
-
- void writeExternal(ObjectOutput out) throws IOException {
- out.writeObject(dateTime);
- out.writeObject(offset);
- out.writeObject(zone);
- }
-
- static ChronoZonedDateTime<?> readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
- ChronoLocalDateTime<?> dateTime = (ChronoLocalDateTime<?>) in.readObject();
- ZoneOffset offset = (ZoneOffset) in.readObject();
- ZoneId zone = (ZoneId) in.readObject();
- return dateTime.atZone(offset).withZoneSameLocal(zone);
- // TODO: ZDT uses ofLenient()
- }
-
- //-------------------------------------------------------------------------
- @Override
- public boolean equals(Object obj) {
- if (this == obj) {
- return true;
- }
- if (obj instanceof ChronoZonedDateTime) {
- return compareTo((ChronoZonedDateTime<?>) obj) == 0;
- }
- return false;
- }
-
- @Override
- public int hashCode() {
- return getDateTime().hashCode() ^ getOffset().hashCode() ^ Integer.rotateLeft(getZone().hashCode(), 3);
- }
-
- @Override
- public String toString() {
- String str = getDateTime().toString() + getOffset().toString();
- if (getOffset() != getZone()) {
- str += '[' + getZone().toString() + ']';
- }
- return str;
- }
-
-
-}