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/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later.
* See the lgpl.txt file in the root directory or .
*/
package org.hibernate.type.descriptor.java;
import java.sql.Time;
import java.sql.Timestamp;
import java.time.Instant;
import java.time.LocalDate;
import java.time.OffsetDateTime;
import java.time.OffsetTime;
import java.time.ZoneOffset;
import java.time.ZonedDateTime;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import org.hibernate.type.OffsetTimeType;
import org.hibernate.type.descriptor.WrapperOptions;
/**
* Java type descriptor for the LocalDateTime type.
*
* @author Steve Ebersole
*/
public class OffsetTimeJavaDescriptor extends AbstractTypeDescriptor {
/**
* Singleton access
*/
public static final OffsetTimeJavaDescriptor INSTANCE = new OffsetTimeJavaDescriptor();
@SuppressWarnings("unchecked")
public OffsetTimeJavaDescriptor() {
super( OffsetTime.class, ImmutableMutabilityPlan.INSTANCE );
}
@Override
public String toString(OffsetTime value) {
return OffsetTimeType.FORMATTER.format( value );
}
@Override
public OffsetTime fromString(String string) {
return OffsetTime.from( OffsetTimeType.FORMATTER.parse( string ) );
}
@Override
@SuppressWarnings("unchecked")
public X unwrap(OffsetTime offsetTime, Class type, WrapperOptions options) {
if ( offsetTime == null ) {
return null;
}
if ( OffsetTime.class.isAssignableFrom( type ) ) {
return (X) offsetTime;
}
if ( java.sql.Time.class.isAssignableFrom( type ) ) {
return (X) java.sql.Time.valueOf( offsetTime.toLocalTime() );
}
final ZonedDateTime zonedDateTime = offsetTime.atDate( LocalDate.of( 1970, 1, 1 ) ).toZonedDateTime();
if ( Timestamp.class.isAssignableFrom( type ) ) {
/*
* Workaround for HHH-13266 (JDK-8061577).
* Ideally we'd want to use Timestamp.from( offsetDateTime.toInstant() ), but this won't always work.
* Timestamp.from() assumes the number of milliseconds since the epoch
* means the same thing in Timestamp and Instant, but it doesn't, in particular before 1900.
*/
return (X) Timestamp.valueOf( zonedDateTime.toLocalDateTime() );
}
if ( Calendar.class.isAssignableFrom( type ) ) {
return (X) GregorianCalendar.from( zonedDateTime );
}
final Instant instant = zonedDateTime.toInstant();
if ( Long.class.isAssignableFrom( type ) ) {
return (X) Long.valueOf( instant.toEpochMilli() );
}
if ( java.util.Date.class.isAssignableFrom( type ) ) {
return (X) java.util.Date.from( instant );
}
throw unknownUnwrap( type );
}
@Override
public OffsetTime wrap(X value, WrapperOptions options) {
if ( value == null ) {
return null;
}
if ( OffsetTime.class.isInstance( value ) ) {
return (OffsetTime) value;
}
/*
* Also, in order to fix HHH-13357, and to be consistent with the conversion to Time (see above),
* we set the offset to the current offset of the JVM (OffsetDateTime.now().getOffset()).
* This is different from setting the *zone* to the current *zone* of the JVM (ZoneId.systemDefault()),
* since a zone has a varying offset over time,
* thus the zone might have a different offset for the given timezone than it has for the current date/time.
* For example, if the timestamp represents 1970-01-01TXX:YY,
* and the JVM is set to use Europe/Paris as a timezone, and the current time is 2019-04-16-08:53,
* then applying the JVM timezone to the timestamp would result in the offset +01:00,
* but applying the JVM offset would result in the offset +02:00, since DST is in effect at 2019-04-16-08:53.
*
* Of course none of this would be a problem if we just stored the offset in the database,
* but I guess there are historical reasons that explain why we don't.
*/
ZoneOffset offset = OffsetDateTime.now().getOffset();
if ( Time.class.isInstance( value ) ) {
return ( (Time) value ).toLocalTime().atOffset( offset );
}
if ( Timestamp.class.isInstance( value ) ) {
final Timestamp ts = (Timestamp) value;
/*
* Workaround for HHH-13266 (JDK-8061577).
* Ideally we'd want to use OffsetDateTime.ofInstant( ts.toInstant(), ... ), but this won't always work.
* ts.toInstant() assumes the number of milliseconds since the epoch
* means the same thing in Timestamp and Instant, but it doesn't, in particular before 1900.
*/
return ts.toLocalDateTime().toLocalTime().atOffset( offset );
}
if ( Date.class.isInstance( value ) ) {
final Date date = (Date) value;
return OffsetTime.ofInstant( date.toInstant(), offset );
}
if ( Long.class.isInstance( value ) ) {
return OffsetTime.ofInstant( Instant.ofEpochMilli( (Long) value ), offset );
}
if ( Calendar.class.isInstance( value ) ) {
final Calendar calendar = (Calendar) value;
return OffsetTime.ofInstant( calendar.toInstant(), calendar.getTimeZone().toZoneId() );
}
throw unknownWrap( value.getClass() );
}
}