/*
 * Copyright 2014-2020 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
 *
 *      https://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.jpa.convert.threeten;

import java.time.Instant;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.ZoneId;
import java.util.Date;

import javax.persistence.AttributeConverter;
import javax.persistence.Converter;

import org.springframework.data.convert.Jsr310Converters.DateToInstantConverter;
import org.springframework.data.convert.Jsr310Converters.DateToLocalDateConverter;
import org.springframework.data.convert.Jsr310Converters.DateToLocalDateTimeConverter;
import org.springframework.data.convert.Jsr310Converters.DateToLocalTimeConverter;
import org.springframework.data.convert.Jsr310Converters.InstantToDateConverter;
import org.springframework.data.convert.Jsr310Converters.LocalDateTimeToDateConverter;
import org.springframework.data.convert.Jsr310Converters.LocalDateToDateConverter;
import org.springframework.data.convert.Jsr310Converters.LocalTimeToDateConverter;
import org.springframework.data.convert.Jsr310Converters.StringToZoneIdConverter;
import org.springframework.data.convert.Jsr310Converters.ZoneIdToStringConverter;
import org.springframework.lang.Nullable;
import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;

JPA 2.1 converters to turn JSR-310 types into legacy Dates. To activate these converters make sure your persistence provider detects them by including this class in the list of mapped classes. In Spring environments, you can simply register the package of this class (i.e. org.springframework.data.jpa.convert.threeten) as package to be scanned on e.g. the LocalContainerEntityManagerFactoryBean. 
Author:
Oliver Gierke, Kevin Peters/**
 * JPA 2.1 converters to turn JSR-310 types into legacy {@link Date}s. To activate these converters make sure your
 * persistence provider detects them by including this class in the list of mapped classes. In Spring environments, you
 * can simply register the package of this class (i.e. {@code org.springframework.data.jpa.convert.threeten}) as package
 * to be scanned on e.g. the {@link LocalContainerEntityManagerFactoryBean}.
 *
 * @author Oliver Gierke
 * @author Kevin Peters
 */
public class Jsr310JpaConverters {

	@Converter(autoApply = true)
	public static class LocalDateConverter implements AttributeConverter<LocalDate, Date> {

		@Nullable
		@Override
		public Date convertToDatabaseColumn(LocalDate date) {
			return date == null ? null : LocalDateToDateConverter.INSTANCE.convert(date);
		}

		@Nullable
		@Override
		public LocalDate convertToEntityAttribute(Date date) {
			return date == null ? null : DateToLocalDateConverter.INSTANCE.convert(date);
		}
	}

	@Converter(autoApply = true)
	public static class LocalTimeConverter implements AttributeConverter<LocalTime, Date> {

		@Nullable
		@Override
		public Date convertToDatabaseColumn(LocalTime time) {
			return time == null ? null : LocalTimeToDateConverter.INSTANCE.convert(time);
		}

		@Nullable
		@Override
		public LocalTime convertToEntityAttribute(Date date) {
			return date == null ? null : DateToLocalTimeConverter.INSTANCE.convert(date);
		}
	}

	@Converter(autoApply = true)
	public static class LocalDateTimeConverter implements AttributeConverter<LocalDateTime, Date> {

		@Nullable
		@Override
		public Date convertToDatabaseColumn(LocalDateTime date) {
			return date == null ? null : LocalDateTimeToDateConverter.INSTANCE.convert(date);
		}

		@Nullable
		@Override
		public LocalDateTime convertToEntityAttribute(Date date) {
			return date == null ? null : DateToLocalDateTimeConverter.INSTANCE.convert(date);
		}
	}

	@Converter(autoApply = true)
	public static class InstantConverter implements AttributeConverter<Instant, Date> {

		@Nullable
		@Override
		public Date convertToDatabaseColumn(Instant instant) {
			return instant == null ? null : InstantToDateConverter.INSTANCE.convert(instant);
		}

		@Nullable
		@Override
		public Instant convertToEntityAttribute(Date date) {
			return date == null ? null : DateToInstantConverter.INSTANCE.convert(date);
		}
	}

	@Converter(autoApply = true)
	public static class ZoneIdConverter implements AttributeConverter<ZoneId, String> {

		@Nullable
		@Override
		public String convertToDatabaseColumn(ZoneId zoneId) {
			return zoneId == null ? null : ZoneIdToStringConverter.INSTANCE.convert(zoneId);
		}

		@Nullable
		@Override
		public ZoneId convertToEntityAttribute(String zoneId) {
			return zoneId == null ? null : StringToZoneIdConverter.INSTANCE.convert(zoneId);
		}
	}
}