org.mycore.backend.jpa.MCRZonedDateTimeConverter Maven / Gradle / Ivy
/*
* This file is part of *** M y C o R e ***
* See http://www.mycore.de/ for details.
*
* MyCoRe is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* MyCoRe 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 for more details.
*
* You should have received a copy of the GNU General Public License
* along with MyCoRe. If not, see .
*/
package org.mycore.backend.jpa;
import java.time.DateTimeException;
import java.time.Instant;
import java.time.LocalDateTime;
import java.time.ZoneId;
import java.time.ZonedDateTime;
import java.util.Date;
import javax.persistence.AttributeConverter;
import javax.persistence.Converter;
/**
* Converts a {@link ZonedDateTime} to {@link Date} for JPA 2.1.
* @author Thomas Scheffler (yagee)
*/
@Converter
public class MCRZonedDateTimeConverter implements AttributeConverter {
@Override
public Date convertToDatabaseColumn(ZonedDateTime date) {
if (date == null) {
return null;
}
Instant instant = Instant.from(date);
return Date.from(instant);
}
@Override
public ZonedDateTime convertToEntityAttribute(Date dbData) {
if (dbData == null) {
return null;
}
Instant instant = dbData.toInstant();
try {
return ZonedDateTime.from(instant);
} catch (DateTimeException exc) {
LocalDateTime localDateTime = LocalDateTime.ofInstant(instant, ZoneId.of("UTC"));
return ZonedDateTime.of(localDateTime, ZoneId.of("UTC"));
}
}
}