| // *************************************************************************************************************************** |
| // * Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file * |
| // * distributed with this work for additional information regarding copyright ownership. The ASF licenses this file * |
| // * to you under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance * |
| // * with the License. You may obtain a copy of the License at * |
| // * * |
| // * http://www.apache.org/licenses/LICENSE-2.0 * |
| // * * |
| // * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an * |
| // * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the * |
| // * specific language governing permissions and limitations under the License. * |
| // *************************************************************************************************************************** |
| package org.apache.juneau.transforms; |
| |
| import java.time.*; |
| import java.time.format.*; |
| import java.time.temporal.*; |
| import java.util.*; |
| |
| import org.apache.juneau.*; |
| import org.apache.juneau.internal.*; |
| import org.apache.juneau.transform.*; |
| |
| /** |
| * Swap that converts {@link Date} objects to and from strings. |
| * |
| * <p> |
| * Uses the {@link DateTimeFormatter} class for converting {@link Date} objects. |
| * |
| * <p> |
| * Serialization is relatively straightforward. The <c>Date</c> object is converted to a {@linked ZonedDateTime} |
| * object using the time zone defined by the {@link BeanSession#getTimeZoneId()} method. Then the |
| * <c>ZonedDateTime</c> object is passed to the {@link DateTimeFormatter#format(TemporalAccessor)} method to produce |
| * the string value. |
| * |
| * <p> |
| * Parsing is a little more complicated. The string is parsed into an intermediate {@link Temporal} object before |
| * being converted into a <c>Date</c>. The intermediate type can be any of the following: |
| * <ul> |
| * <li>{@link LocalDate} - For patterns containing dates without timezones. |
| * <li>{@link LocalTime} - For patterns containing times without timezones. |
| * <li>{@link LocalDateTime} - For patterns containing date-times without timezones. |
| * <li>{@link ZonedDateTime} - For patterns containing date-times with timezones. |
| * <li>{@link Instant} - For date-times with Zulu timezone. |
| * <li>{@link OffsetDateTime} - For date-times with timezone offsets. |
| * <li>{@link OffsetTime} - For times with timezone offsets. |
| * </ul> |
| */ |
| public class TemporalDateSwap extends StringSwap<Date> { |
| |
| /** |
| * Default swap to {@link DateTimeFormatter#BASIC_ISO_DATE}. |
| * <p> |
| * Example: <js>"20111203"</js> |
| */ |
| public static class BasicIsoDate extends TemporalDateSwap { |
| /** Constructor.*/ |
| public BasicIsoDate() { |
| super("BASIC_ISO_DATE", LocalDate.class, true); |
| } |
| }; |
| |
| /** |
| * Default swap to {@link DateTimeFormatter#ISO_DATE}. |
| * <p> |
| * Example: <js>"2011-12-03+01:00"</js> or <js>"2011-12-03"</js> |
| */ |
| public static class IsoDate extends TemporalDateSwap { |
| /** Constructor.*/ |
| public IsoDate() { |
| super("ISO_DATE", LocalDate.class, false); |
| } |
| }; |
| |
| /** |
| * Default swap to {@link DateTimeFormatter#ISO_DATE_TIME}. |
| * <p> |
| * Example: <js>"2011-12-03T10:15:30+01:00[Europe/Paris]"</js> |
| */ |
| public static class IsoDateTime extends TemporalDateSwap { |
| /** Constructor.*/ |
| public IsoDateTime() { |
| super("ISO_DATE_TIME", ZonedDateTime.class, false); |
| } |
| }; |
| |
| /** |
| * Default swap to {@link DateTimeFormatter#ISO_INSTANT}. |
| * <p> |
| * Example: <js>"2011-12-03T10:15:30Z"</js> |
| */ |
| public static class IsoInstant extends TemporalDateSwap { |
| /** Constructor.*/ |
| public IsoInstant() { |
| super("ISO_INSTANT", Instant.class, false); |
| } |
| }; |
| |
| /** |
| * Default swap to {@link DateTimeFormatter#ISO_LOCAL_DATE}. |
| * <p> |
| * Example: <js>"2011-12-03"</js> |
| */ |
| public static class IsoLocalDate extends TemporalDateSwap { |
| /** Constructor.*/ |
| public IsoLocalDate() { |
| super("ISO_LOCAL_DATE", LocalDate.class, false); |
| } |
| }; |
| |
| /** |
| * Default swap to {@link DateTimeFormatter#ISO_LOCAL_DATE_TIME}. |
| * <p> |
| * Example: <js>"2011-12-03T10:15:30"</js> |
| */ |
| public static class IsoLocalDateTime extends TemporalDateSwap { |
| /** Constructor.*/ |
| public IsoLocalDateTime() { |
| super("ISO_LOCAL_DATE_TIME", LocalDateTime.class, false); |
| } |
| }; |
| |
| /** |
| * Default swap to {@link DateTimeFormatter#ISO_LOCAL_TIME}. |
| * <p> |
| * Example: <js>"10:15:30"</js> |
| */ |
| public static class IsoLocalTime extends TemporalDateSwap { |
| /** Constructor.*/ |
| public IsoLocalTime() { |
| super("ISO_LOCAL_TIME", LocalTime.class, false); |
| } |
| }; |
| |
| /** |
| * Default swap to {@link DateTimeFormatter#ISO_OFFSET_DATE}. |
| * <p> |
| * Example: <js>"2011-12-03"</js> |
| */ |
| public static class IsoOffsetDate extends TemporalDateSwap { |
| /** Constructor.*/ |
| public IsoOffsetDate() { |
| super("ISO_OFFSET_DATE", LocalDate.class, false); |
| } |
| }; |
| |
| /** |
| * Default swap to {@link DateTimeFormatter#ISO_OFFSET_DATE_TIME}. |
| * <p> |
| * Example: <js>"2011-12-03T10:15:30+01:00"</js> |
| */ |
| public static class IsoOffsetDateTime extends TemporalDateSwap { |
| /** Constructor.*/ |
| public IsoOffsetDateTime() { |
| super("ISO_OFFSET_DATE_TIME", OffsetDateTime.class, false); |
| } |
| }; |
| |
| /** |
| * Default swap to {@link DateTimeFormatter#ISO_OFFSET_TIME}. |
| * <p> |
| * Example: <js>"10:15:30+01:00"</js> |
| */ |
| public static class IsoOffsetTime extends TemporalDateSwap { |
| /** Constructor.*/ |
| public IsoOffsetTime() { |
| super("ISO_OFFSET_TIME", OffsetTime.class, false); |
| } |
| }; |
| |
| /** |
| * Default swap to {@link DateTimeFormatter#ISO_ORDINAL_DATE}. |
| * <p> |
| * Example: <js>"2012-337"</js> |
| */ |
| public static class IsoOrdinalDate extends TemporalDateSwap { |
| /** Constructor.*/ |
| public IsoOrdinalDate() { |
| super("ISO_ORDINAL_DATE", LocalDate.class, false); |
| } |
| }; |
| |
| /** |
| * Default swap to {@link DateTimeFormatter#ISO_TIME}. |
| * <p> |
| * Example: <js>"10:15:30+01:00"</js> or <js>"10:15:30"</js> |
| */ |
| public static class IsoTime extends TemporalDateSwap { |
| /** Constructor.*/ |
| public IsoTime() { |
| super("ISO_TIME", OffsetTime.class, false); |
| } |
| }; |
| |
| /** |
| * Default swap to {@link DateTimeFormatter#ISO_WEEK_DATE}. |
| * <p> |
| * Example: <js>"2012-W48-6"</js> |
| */ |
| public static class IsoWeekDate extends TemporalDateSwap { |
| /** Constructor.*/ |
| public IsoWeekDate() { |
| super("ISO_WEEK_DATE", LocalDate.class, false); |
| } |
| }; |
| |
| /** |
| * Default swap to {@link DateTimeFormatter#ISO_ZONED_DATE_TIME}. |
| * <p> |
| * Example: <js>"2011-12-03T10:15:30+01:00[Europe/Paris]"</js> |
| */ |
| public static class IsoZonedDateTime extends TemporalDateSwap { |
| /** Constructor.*/ |
| public IsoZonedDateTime() { |
| super("ISO_ZONED_DATE_TIME", ZonedDateTime.class, false); |
| } |
| }; |
| |
| /** |
| * Default swap to {@link DateTimeFormatter#RFC_1123_DATE_TIME}. |
| * <p> |
| * Example: <js>"Tue, 3 Jun 2008 11:05:30 GMT"</js> |
| */ |
| public static class Rfc1123DateTime extends TemporalDateSwap { |
| /** Constructor.*/ |
| public Rfc1123DateTime() { |
| super("RFC_1123_DATE_TIME", ZonedDateTime.class, false); |
| } |
| }; |
| |
| |
| private final TemporalParser<? extends Temporal> intermediateParser; |
| private final DateTimeFormatter formatter; |
| private final boolean serializeWithoutTimezone; |
| |
| /** |
| * Constructor. |
| * |
| * @param pattern The timestamp format or name of predefined {@link DateTimeFormatter}. |
| * @param intermediateType The intermediate Java 8 data type to parse into before converting to a Date object. |
| * @param serializeWithoutTimezone <jk>true</jk> if the date should be converted to local-date-time before serialization. |
| */ |
| public TemporalDateSwap(String pattern, Class<? extends Temporal> intermediateType, boolean serializeWithoutTimezone) { |
| super(Date.class); |
| this.intermediateParser = TemporalParserCache.getTemporalParser(intermediateType); |
| this.formatter = DateUtils.getFormatter(pattern); |
| this.serializeWithoutTimezone = serializeWithoutTimezone; |
| } |
| |
| /** |
| * Converts the specified intermediate {@link Temporal} object to a {@link Date} object. |
| * |
| * @param bs The current bean session. |
| * @param temporal The intermediate temporal object. |
| * @return The converted date. |
| */ |
| protected Date toDate(BeanSession bs, Temporal temporal) { |
| return DateUtils.toDate(temporal, bs.getTimeZoneId()); |
| } |
| |
| @Override /* PojoSwap */ |
| public String swap(BeanSession session, Date o) throws Exception { |
| if (o == null) |
| return null; |
| ZonedDateTime t = o.toInstant().atZone(session.getTimeZoneId()); |
| return formatter.format(serializeWithoutTimezone ? t.toLocalDateTime() : t); |
| } |
| |
| @Override /* PojoSwap */ |
| public Date unswap(BeanSession session, String f, ClassMeta<?> hint) throws Exception { |
| if (f == null) |
| return null; |
| Temporal t = intermediateParser.parse(f, formatter); |
| return toDate(session, t); |
| } |
| } |