--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/java.base/share/classes/java/time/chrono/ChronoZonedDateTimeImpl.java Sun Aug 17 15:54:13 2014 +0100
@@ -0,0 +1,391 @@
+/*
+ * 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.ChronoUnit.SECONDS;
+
+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.Instant;
+import java.time.LocalDateTime;
+import java.time.ZoneId;
+import java.time.ZoneOffset;
+import java.time.temporal.ChronoField;
+import java.time.temporal.ChronoUnit;
+import java.time.temporal.Temporal;
+import java.time.temporal.TemporalField;
+import java.time.temporal.TemporalUnit;
+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.
+ *
+ * @implSpec
+ * This class is immutable and thread-safe.
+ *
+ * @serial Document the delegation of this class in the serialized-form specification.
+ * @param <D> the concrete type for the date of this date-time
+ * @since 1.8
+ */
+final class ChronoZonedDateTimeImpl<D extends ChronoLocalDate>
+ implements ChronoZonedDateTime<D>, Serializable {
+
+ /**
+ * Serialization version.
+ */
+ private static final long serialVersionUID = -5261813987200935591L;
+
+ /**
+ * The local date-time.
+ */
+ private final transient ChronoLocalDateTimeImpl<D> dateTime;
+ /**
+ * The zone offset.
+ */
+ private final transient ZoneOffset offset;
+ /**
+ * The zone ID.
+ */
+ private final transient 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 ChronoLocalDate> 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<>(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<>(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 ChronoZonedDateTimeImpl<?> ofInstant(Chronology 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<?> cldt = (ChronoLocalDateTimeImpl<?>)chrono.localDateTime(ldt);
+ return new ChronoZonedDateTimeImpl<>(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
+ */
+ @SuppressWarnings("unchecked")
+ private ChronoZonedDateTimeImpl<D> create(Instant instant, ZoneId zone) {
+ return (ChronoZonedDateTimeImpl<D>)ofInstant(getChronology(), instant, zone);
+ }
+
+ /**
+ * Casts the {@code Temporal} to {@code ChronoZonedDateTimeImpl} 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 ChronoZonedDateTimeImpl}, not null
+ * @throws ClassCastException if the date-time cannot be cast to ChronoZonedDateTimeImpl
+ * or the chronology is not equal this Chronology
+ */
+ static <R extends ChronoLocalDate> ChronoZonedDateTimeImpl<R> ensureValid(Chronology chrono, Temporal temporal) {
+ @SuppressWarnings("unchecked")
+ ChronoZonedDateTimeImpl<R> other = (ChronoZonedDateTimeImpl<R>) temporal;
+ if (chrono.equals(other.getChronology()) == false) {
+ throw new ClassCastException("Chronology mismatch, required: " + chrono.getId()
+ + ", actual: " + other.getChronology().getId());
+ }
+ return other;
+ }
+
+ //-----------------------------------------------------------------------
+ /**
+ * 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<D> dateTime, ZoneOffset offset, ZoneId zone) {
+ this.dateTime = Objects.requireNonNull(dateTime, "dateTime");
+ this.offset = Objects.requireNonNull(offset, "offset");
+ this.zone = Objects.requireNonNull(zone, "zone");
+ }
+
+ //-----------------------------------------------------------------------
+ @Override
+ public ZoneOffset getOffset() {
+ return offset;
+ }
+
+ @Override
+ public ChronoZonedDateTime<D> 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<>(dateTime, earlierOffset, zone);
+ }
+ }
+ return this;
+ }
+
+ @Override
+ public ChronoZonedDateTime<D> withLaterOffsetAtOverlap() {
+ ZoneOffsetTransition trans = getZone().getRules().getTransition(LocalDateTime.from(this));
+ if (trans != null) {
+ ZoneOffset offset = trans.getOffsetAfter();
+ if (offset.equals(getOffset()) == false) {
+ return new ChronoZonedDateTimeImpl<>(dateTime, offset, zone);
+ }
+ }
+ return this;
+ }
+
+ //-----------------------------------------------------------------------
+ @Override
+ public ChronoLocalDateTime<D> toLocalDateTime() {
+ return dateTime;
+ }
+
+ @Override
+ public ZoneId getZone() {
+ return zone;
+ }
+
+ @Override
+ public ChronoZonedDateTime<D> withZoneSameLocal(ZoneId zone) {
+ return ofBest(dateTime, zone, offset);
+ }
+
+ @Override
+ public ChronoZonedDateTime<D> 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.isSupportedBy(this));
+ }
+
+ //-----------------------------------------------------------------------
+ @Override
+ public ChronoZonedDateTime<D> 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 ChronoZonedDateTimeImpl.ensureValid(getChronology(), field.adjustInto(this, newValue));
+ }
+
+ //-----------------------------------------------------------------------
+ @Override
+ public ChronoZonedDateTime<D> plus(long amountToAdd, TemporalUnit unit) {
+ if (unit instanceof ChronoUnit) {
+ return with(dateTime.plus(amountToAdd, unit));
+ }
+ return ChronoZonedDateTimeImpl.ensureValid(getChronology(), unit.addTo(this, amountToAdd)); /// TODO: Generics replacement Risk!
+ }
+
+ //-----------------------------------------------------------------------
+ @Override
+ public long until(Temporal endExclusive, TemporalUnit unit) {
+ Objects.requireNonNull(endExclusive, "endExclusive");
+ @SuppressWarnings("unchecked")
+ ChronoZonedDateTime<D> end = (ChronoZonedDateTime<D>) getChronology().zonedDateTime(endExclusive);
+ if (unit instanceof ChronoUnit) {
+ end = end.withZoneSameInstant(offset);
+ return dateTime.until(end.toLocalDateTime(), unit);
+ }
+ Objects.requireNonNull(unit, "unit");
+ return unit.between(this, end);
+ }
+
+ //-----------------------------------------------------------------------
+ /**
+ * Writes the ChronoZonedDateTime using a
+ * <a href="../../../serialized-form.html#java.time.chrono.Ser">dedicated serialized form</a>.
+ * @serialData
+ * <pre>
+ * out.writeByte(3); // identifies a ChronoZonedDateTime
+ * out.writeObject(toLocalDateTime());
+ * out.writeObject(getOffset());
+ * out.writeObject(getZone());
+ * </pre>
+ *
+ * @return the instance of {@code Ser}, not null
+ */
+ private Object writeReplace() {
+ return new Ser(Ser.CHRONO_ZONE_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(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 toLocalDateTime().hashCode() ^ getOffset().hashCode() ^ Integer.rotateLeft(getZone().hashCode(), 3);
+ }
+
+ @Override
+ public String toString() {
+ String str = toLocalDateTime().toString() + getOffset().toString();
+ if (getOffset() != getZone()) {
+ str += '[' + getZone().toString() + ']';
+ }
+ return str;
+ }
+
+
+}