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HHH-12169 - Support dependency injection for Envers revision listeners.

This commit is contained in:
Chris Cranford 2017-12-14 13:03:46 -05:00
parent ddc1f03abc
commit a5bce26262
1 changed files with 30 additions and 35 deletions
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65
hibernate-envers/src/main/java/org/hibernate/envers/internal/revisioninfo/DefaultRevisionInfoGenerator.java
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@ -8,10 +8,8 @@ package org.hibernate.envers.internal.revisioninfo;
import java.io.Serializable;
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
import java.util.Date;
import org.hibernate.MappingException;
import org.hibernate.Session;
import org.hibernate.envers.EntityTrackingRevisionListener;
import org.hibernate.envers.RevisionListener;
@ -21,15 +19,18 @@ import org.hibernate.envers.internal.synchronization.SessionCacheCleaner;
import org.hibernate.envers.internal.tools.ReflectionTools;
import org.hibernate.internal.util.ReflectHelper;
import org.hibernate.property.access.spi.Setter;
import org.hibernate.resource.beans.spi.ManagedBean;
import org.hibernate.resource.beans.spi.ManagedBeanRegistry;
import org.hibernate.service.ServiceRegistry;
/**
* @author Adam Warski (adam at warski dot org)
* @author Lukasz Antoniak (lukasz dot antoniak at gmail dot com)
* @author Chris Cranford
*/
public class DefaultRevisionInfoGenerator implements RevisionInfoGenerator {
private final String revisionInfoEntityName;
private final RevisionListener listener;
private final ManagedBean<? extends RevisionListener> listenerManagedBean;
private final Setter revisionTimestampSetter;
private final boolean timestampAsDate;
private final Constructor<?> revisionInfoClassConstructor;
@ -45,30 +46,12 @@ public class DefaultRevisionInfoGenerator implements RevisionInfoGenerator {
this.revisionInfoEntityName = revisionInfoEntityName;
this.timestampAsDate = timestampAsDate;
revisionInfoClassConstructor = ReflectHelper.getDefaultConstructor( revisionInfoClass );
revisionTimestampSetter = ReflectionTools.getSetter( revisionInfoClass, revisionInfoTimestampData, serviceRegistry );
this.revisionInfoClassConstructor = ReflectHelper.getDefaultConstructor( revisionInfoClass );
this.revisionTimestampSetter = ReflectionTools.getSetter( revisionInfoClass, revisionInfoTimestampData, serviceRegistry );
if ( !listenerClass.equals( RevisionListener.class ) ) {
// This is not the default value.
try {
listener = (RevisionListener) ReflectHelper.getDefaultConstructor( listenerClass ).newInstance();
}
catch (InstantiationException e) {
throw new MappingException( e );
}
catch (IllegalAccessException e) {
throw new MappingException( e );
}
catch (InvocationTargetException e) {
throw new MappingException( e );
}
}
else {
// Default listener - none
listener = null;
}
this.listenerManagedBean = resolveRevisionListenerBean( listenerClass, serviceRegistry );
sessionCacheCleaner = new SessionCacheCleaner();
this.sessionCacheCleaner = new SessionCacheCleaner();
}
@Override
@ -90,8 +73,8 @@ public class DefaultRevisionInfoGenerator implements RevisionInfoGenerator {
final long timestamp = System.currentTimeMillis();
revisionTimestampSetter.set( revisionInfo, timestampAsDate ? new Date( timestamp ) : timestamp, null );
if ( listener != null ) {
listener.newRevision( revisionInfo );
if ( listenerManagedBean != null ) {
listenerManagedBean.getBeanInstance().newRevision( revisionInfo );
}
return revisionInfo;
@ -104,14 +87,26 @@ public class DefaultRevisionInfoGenerator implements RevisionInfoGenerator {
Serializable entityId,
RevisionType revisionType,
Object revisionInfo) {
if ( listener instanceof EntityTrackingRevisionListener ) {
( (EntityTrackingRevisionListener) listener ).entityChanged(
entityClass,
entityName,
entityId,
revisionType,
revisionInfo
);
if ( listenerManagedBean != null ) {
final RevisionListener listener = listenerManagedBean.getBeanInstance();
if ( EntityTrackingRevisionListener.class.isInstance( listener ) ) {
( (EntityTrackingRevisionListener) listener ).entityChanged(
entityClass,
entityName,
entityId,
revisionType,
revisionInfo
);
}
}
}
private ManagedBean<? extends RevisionListener> resolveRevisionListenerBean(
Class<? extends RevisionListener> listenerClass,
ServiceRegistry serviceRegistry) {
if ( !listenerClass.equals( RevisionListener.class ) ) {
return serviceRegistry.getService( ManagedBeanRegistry.class ).getBean( listenerClass, true );
}
return null;
}
}