org.hibernate.envers.internal.synchronization.work.AbstractAuditWorkUnit Maven / Gradle / Ivy
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Hibernate's entity version (audit/history) support
/*
* 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.envers.internal.synchronization.work;
import java.io.Serializable;
import java.util.HashMap;
import java.util.Map;
import org.hibernate.Session;
import org.hibernate.engine.spi.SessionImplementor;
import org.hibernate.envers.RevisionType;
import org.hibernate.envers.boot.internal.EnversService;
import org.hibernate.envers.configuration.internal.AuditEntitiesConfiguration;
import org.hibernate.envers.internal.entities.mapper.id.IdMapper;
import org.hibernate.envers.strategy.AuditStrategy;
/**
* @author Adam Warski (adam at warski dot org)
* @author Stephanie Pau at Markit Group Plc
* @author Lukasz Antoniak (lukasz dot antoniak at gmail dot com)
* @author Chris Cranford
*/
public abstract class AbstractAuditWorkUnit implements AuditWorkUnit {
protected final SessionImplementor sessionImplementor;
protected final EnversService enversService;
protected final Serializable id;
protected final String entityName;
protected final AuditStrategy auditStrategy;
protected final RevisionType revisionType;
private Object performedData;
protected AbstractAuditWorkUnit(
SessionImplementor sessionImplementor,
String entityName,
EnversService enversService,
Serializable id,
RevisionType revisionType) {
this.sessionImplementor = sessionImplementor;
this.enversService = enversService;
this.id = id;
this.entityName = entityName;
this.revisionType = revisionType;
this.auditStrategy = enversService.getAuditStrategy();
}
protected void fillDataWithId(Map data, Object revision) {
final AuditEntitiesConfiguration entitiesCfg = enversService.getAuditEntitiesConfiguration();
final Map originalId = new HashMap<>();
originalId.put( entitiesCfg.getRevisionFieldName(), revision );
final IdMapper idMapper = enversService.getEntitiesConfigurations().get( getEntityName() ).getIdMapper();
idMapper.mapToMapFromId( sessionImplementor, originalId, id );
data.put( entitiesCfg.getRevisionTypePropName(), revisionType );
data.put( entitiesCfg.getOriginalIdPropName(), originalId );
}
@Override
public void perform(Session session, Object revisionData) {
final Map data = generateData( revisionData );
auditStrategy.perform( session, getEntityName(), enversService, id, data, revisionData );
setPerformed( data );
}
@Override
public Serializable getEntityId() {
return id;
}
@Override
public boolean isPerformed() {
return performedData != null;
}
@Override
public String getEntityName() {
return entityName;
}
protected void setPerformed(Object performedData) {
this.performedData = performedData;
}
public void undo(Session session) {
if ( isPerformed() ) {
session.delete(
enversService.getAuditEntitiesConfiguration().getAuditEntityName( getEntityName() ),
performedData
);
session.flush();
}
}
@Override
public RevisionType getRevisionType() {
return revisionType;
}
}