| /* |
| * 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. |
| */ |
| |
| /* |
| * Copyright (c) 2011-2012, 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 java.io.Externalizable; |
| import java.io.IOException; |
| import java.io.InvalidClassException; |
| import java.io.ObjectInput; |
| import java.io.ObjectOutput; |
| import java.io.StreamCorruptedException; |
| import java.time.LocalDate; |
| import java.time.LocalDateTime; |
| |
| /** |
| * The shared serialization delegate for this package. |
| * |
| * @implNote |
| * This class wraps the object being serialized, and takes a byte representing the type of the class to |
| * be serialized. This byte can also be used for versioning the serialization format. In this case another |
| * byte flag would be used in order to specify an alternative version of the type format. |
| * For example {@code CHRONO_TYPE_VERSION_2 = 21} |
| * <p> |
| * In order to serialize the object it writes its byte and then calls back to the appropriate class where |
| * the serialization is performed. In order to deserialize the object it read in the type byte, switching |
| * in order to select which class to call back into. |
| * <p> |
| * The serialization format is determined on a per class basis. In the case of field based classes each |
| * of the fields is written out with an appropriate size format in descending order of the field's size. For |
| * example in the case of {@link LocalDate} year is written before month. Composite classes, such as |
| * {@link LocalDateTime} are serialized as one object. Enum classes are serialized using the index of their |
| * element. |
| * <p> |
| * This class is mutable and should be created once per serialization. |
| * |
| * @serial include |
| * @since 1.8 |
| */ |
| final class Ser implements Externalizable { |
| |
| /** |
| * Serialization version. |
| */ |
| private static final long serialVersionUID = -6103370247208168577L; |
| |
| static final byte CHRONO_TYPE = 1; |
| static final byte CHRONO_LOCAL_DATE_TIME_TYPE = 2; |
| static final byte CHRONO_ZONE_DATE_TIME_TYPE = 3; |
| static final byte JAPANESE_DATE_TYPE = 4; |
| static final byte JAPANESE_ERA_TYPE = 5; |
| static final byte HIJRAH_DATE_TYPE = 6; |
| static final byte MINGUO_DATE_TYPE = 7; |
| static final byte THAIBUDDHIST_DATE_TYPE = 8; |
| static final byte CHRONO_PERIOD_TYPE = 9; |
| |
| /** The type being serialized. */ |
| private byte type; |
| /** The object being serialized. */ |
| private Object object; |
| |
| /** |
| * Constructor for deserialization. |
| */ |
| public Ser() { |
| } |
| |
| /** |
| * Creates an instance for serialization. |
| * |
| * @param type the type |
| * @param object the object |
| */ |
| Ser(byte type, Object object) { |
| this.type = type; |
| this.object = object; |
| } |
| |
| //----------------------------------------------------------------------- |
| /** |
| * Implements the {@code Externalizable} interface to write the object. |
| * @serialData |
| * Each serializable class is mapped to a type that is the first byte |
| * in the stream. Refer to each class {@code writeReplace} |
| * serialized form for the value of the type and sequence of values for the type. |
| * <ul> |
| * <li><a href="../../../serialized-form.html#java.time.chrono.HijrahChronology">HijrahChronology.writeReplace</a> |
| * <li><a href="../../../serialized-form.html#java.time.chrono.IsoChronology">IsoChronology.writeReplace</a> |
| * <li><a href="../../../serialized-form.html#java.time.chrono.JapaneseChronology">JapaneseChronology.writeReplace</a> |
| * <li><a href="../../../serialized-form.html#java.time.chrono.MinguoChronology">MinguoChronology.writeReplace</a> |
| * <li><a href="../../../serialized-form.html#java.time.chrono.ThaiBuddhistChronology">ThaiBuddhistChronology.writeReplace</a> |
| * <li><a href="../../../serialized-form.html#java.time.chrono.ChronoLocalDateTimeImpl">ChronoLocalDateTime.writeReplace</a> |
| * <li><a href="../../../serialized-form.html#java.time.chrono.ChronoZonedDateTimeImpl">ChronoZonedDateTime.writeReplace</a> |
| * <li><a href="../../../serialized-form.html#java.time.chrono.JapaneseDate">JapaneseDate.writeReplace</a> |
| * <li><a href="../../../serialized-form.html#java.time.chrono.JapaneseEra">JapaneseEra.writeReplace</a> |
| * <li><a href="../../../serialized-form.html#java.time.chrono.HijrahDate">HijrahDate.writeReplace</a> |
| * <li><a href="../../../serialized-form.html#java.time.chrono.MinguoDate">MinguoDate.writeReplace</a> |
| * <li><a href="../../../serialized-form.html#java.time.chrono.ThaiBuddhistDate">ThaiBuddhistDate.writeReplace</a> |
| * </ul> |
| * |
| * @param out the data stream to write to, not null |
| */ |
| @Override |
| public void writeExternal(ObjectOutput out) throws IOException { |
| writeInternal(type, object, out); |
| } |
| |
| private static void writeInternal(byte type, Object object, ObjectOutput out) throws IOException { |
| out.writeByte(type); |
| switch (type) { |
| case CHRONO_TYPE: |
| ((AbstractChronology) object).writeExternal(out); |
| break; |
| case CHRONO_LOCAL_DATE_TIME_TYPE: |
| ((ChronoLocalDateTimeImpl<?>) object).writeExternal(out); |
| break; |
| case CHRONO_ZONE_DATE_TIME_TYPE: |
| ((ChronoZonedDateTimeImpl<?>) object).writeExternal(out); |
| break; |
| case JAPANESE_DATE_TYPE: |
| ((JapaneseDate) object).writeExternal(out); |
| break; |
| case JAPANESE_ERA_TYPE: |
| ((JapaneseEra) object).writeExternal(out); |
| break; |
| case HIJRAH_DATE_TYPE: |
| ((HijrahDate) object).writeExternal(out); |
| break; |
| case MINGUO_DATE_TYPE: |
| ((MinguoDate) object).writeExternal(out); |
| break; |
| case THAIBUDDHIST_DATE_TYPE: |
| ((ThaiBuddhistDate) object).writeExternal(out); |
| break; |
| case CHRONO_PERIOD_TYPE: |
| ((ChronoPeriodImpl) object).writeExternal(out); |
| break; |
| default: |
| throw new InvalidClassException("Unknown serialized type"); |
| } |
| } |
| |
| //----------------------------------------------------------------------- |
| /** |
| * Implements the {@code Externalizable} interface to read the object. |
| * @serialData |
| * The streamed type and parameters defined by the type's {@code writeReplace} |
| * method are read and passed to the corresponding static factory for the type |
| * to create a new instance. That instance is returned as the de-serialized |
| * {@code Ser} object. |
| * |
| * <ul> |
| * <li><a href="../../../serialized-form.html#java.time.chrono.HijrahChronology">HijrahChronology</a> - Chronology.of(id) |
| * <li><a href="../../../serialized-form.html#java.time.chrono.IsoChronology">IsoChronology</a> - Chronology.of(id) |
| * <li><a href="../../../serialized-form.html#java.time.chrono.JapaneseChronology">JapaneseChronology</a> - Chronology.of(id) |
| * <li><a href="../../../serialized-form.html#java.time.chrono.MinguoChronology">MinguoChronology</a> - Chronology.of(id) |
| * <li><a href="../../../serialized-form.html#java.time.chrono.ThaiBuddhistChronology">ThaiBuddhistChronology</a> - Chronology.of(id) |
| * <li><a href="../../../serialized-form.html#java.time.chrono.ChronoLocalDateTimeImpl">ChronoLocalDateTime</a> - date.atTime(time) |
| * <li><a href="../../../serialized-form.html#java.time.chrono.ChronoZonedDateTimeImpl">ChronoZonedDateTime</a> - dateTime.atZone(offset).withZoneSameLocal(zone) |
| * <li><a href="../../../serialized-form.html#java.time.chrono.JapaneseDate">JapaneseDate</a> - JapaneseChronology.INSTANCE.date(year, month, dayOfMonth) |
| * <li><a href="../../../serialized-form.html#java.time.chrono.JapaneseEra">JapaneseEra</a> - JapaneseEra.of(eraValue) |
| * <li><a href="../../../serialized-form.html#java.time.chrono.HijrahDate">HijrahDate</a> - HijrahChronology chrono.date(year, month, dayOfMonth) |
| * <li><a href="../../../serialized-form.html#java.time.chrono.MinguoDate">MinguoDate</a> - MinguoChronology.INSTANCE.date(year, month, dayOfMonth) |
| * <li><a href="../../../serialized-form.html#java.time.chrono.ThaiBuddhistDate">ThaiBuddhistDate</a> - ThaiBuddhistChronology.INSTANCE.date(year, month, dayOfMonth) |
| * </ul> |
| * |
| * @param in the data stream to read from, not null |
| */ |
| @Override |
| public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException { |
| type = in.readByte(); |
| object = readInternal(type, in); |
| } |
| |
| static Object read(ObjectInput in) throws IOException, ClassNotFoundException { |
| byte type = in.readByte(); |
| return readInternal(type, in); |
| } |
| |
| private static Object readInternal(byte type, ObjectInput in) throws IOException, ClassNotFoundException { |
| switch (type) { |
| case CHRONO_TYPE: return AbstractChronology.readExternal(in); |
| case CHRONO_LOCAL_DATE_TIME_TYPE: return ChronoLocalDateTimeImpl.readExternal(in); |
| case CHRONO_ZONE_DATE_TIME_TYPE: return ChronoZonedDateTimeImpl.readExternal(in); |
| case JAPANESE_DATE_TYPE: return JapaneseDate.readExternal(in); |
| case JAPANESE_ERA_TYPE: return JapaneseEra.readExternal(in); |
| case HIJRAH_DATE_TYPE: return HijrahDate.readExternal(in); |
| case MINGUO_DATE_TYPE: return MinguoDate.readExternal(in); |
| case THAIBUDDHIST_DATE_TYPE: return ThaiBuddhistDate.readExternal(in); |
| case CHRONO_PERIOD_TYPE: return ChronoPeriodImpl.readExternal(in); |
| default: throw new StreamCorruptedException("Unknown serialized type"); |
| } |
| } |
| |
| /** |
| * Returns the object that will replace this one. |
| * |
| * @return the read object, should never be null |
| */ |
| private Object readResolve() { |
| return object; |
| } |
| |
| } |
