/*
* Copyright 2013-2017 the original author or authors.
*
* Licensed 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.springframework.data.convert;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Date;
import java.util.List;
import org.joda.time.DateTime;
import org.joda.time.LocalDate;
import org.joda.time.LocalDateTime;
import org.springframework.core.convert.converter.Converter;
import org.springframework.util.ClassUtils;
/**
* Helper class to register JodaTime specific {@link Converter} implementations in case the library is present on the
* classpath.
*
* @author Oliver Gierke
* @author Christoph Strobl
* @author Jens Schauder
*/
@SuppressWarnings("deprecation")
public abstract class JodaTimeConverters {
private static final boolean JODA_TIME_IS_PRESENT = ClassUtils.isPresent("org.joda.time.LocalDate", null);
/**
* Returns the converters to be registered. Will only return converters in case JodaTime is present on the class.
*
* @return
*/
public static Collection<Converter<?, ?>> getConvertersToRegister() {
if (!JODA_TIME_IS_PRESENT) {
return Collections.emptySet();
}
List<Converter<?, ?>> converters = new ArrayList<>();
converters.add(LocalDateToDateConverter.INSTANCE);
converters.add(LocalDateTimeToDateConverter.INSTANCE);
converters.add(DateTimeToDateConverter.INSTANCE);
converters.add(DateToLocalDateConverter.INSTANCE);
converters.add(DateToLocalDateTimeConverter.INSTANCE);
converters.add(DateToDateTimeConverter.INSTANCE);
converters.add(LocalDateTimeToJodaLocalDateTime.INSTANCE);
converters.add(LocalDateTimeToJodaDateTime.INSTANCE);
return converters;
}
public enum LocalDateToDateConverter implements Converter<LocalDate, Date> {
INSTANCE;
public Date convert(LocalDate source) {
return source == null ? null : source.toDate();
}
}
public enum LocalDateTimeToDateConverter implements Converter<LocalDateTime, Date> {
INSTANCE;
public Date convert(LocalDateTime source) {
return source == null ? null : source.toDate();
}
}
public enum DateTimeToDateConverter implements Converter<DateTime, Date> {
INSTANCE;
public Date convert(DateTime source) {
return source == null ? null : source.toDate();
}
}
public enum DateToLocalDateConverter implements Converter<Date, LocalDate> {
INSTANCE;
public LocalDate convert(Date source) {
return source == null ? null : new LocalDate(source.getTime());
}
}
public enum DateToLocalDateTimeConverter implements Converter<Date, LocalDateTime> {
INSTANCE;
public LocalDateTime convert(Date source) {
return source == null ? null : new LocalDateTime(source.getTime());
}
}
public enum DateToDateTimeConverter implements Converter<Date, DateTime> {
INSTANCE;
public DateTime convert(Date source) {
return source == null ? null : new DateTime(source.getTime());
}
}
public enum LocalDateTimeToJodaLocalDateTime implements Converter<java.time.LocalDateTime, LocalDateTime> {
INSTANCE;
/*
* (non-Javadoc)
* @see org.springframework.core.convert.converter.Converter#convert(java.lang.Object)
*/
@Override
public LocalDateTime convert(java.time.LocalDateTime source) {
return source == null ? null
: LocalDateTime.fromDateFields(
org.springframework.data.convert.Jsr310Converters.LocalDateTimeToDateConverter.INSTANCE.convert(source));
}
}
public enum LocalDateTimeToJodaDateTime implements Converter<java.time.LocalDateTime, DateTime> {
INSTANCE;
/*
* (non-Javadoc)
* @see org.springframework.core.convert.converter.Converter#convert(java.lang.Object)
*/
@Override
public DateTime convert(java.time.LocalDateTime source) {
return source == null ? null
: new DateTime(
org.springframework.data.convert.Jsr310Converters.LocalDateTimeToDateConverter.INSTANCE.convert(source));
}
}
}