/*
* Copyright 2007 The Fornax Project Team, including 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
*
* http://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.sculptor.framework.domain;
import javax.persistence.PrePersist;
import javax.persistence.PreUpdate;
import org.joda.time.DateTime;
import org.sculptor.framework.context.ServiceContextStore;
/**
* This Listener will be invoked when objects are saved and it will
* automatically update properties 'lastUpdated', 'lastUpdatedBy', 'created' and
* 'createdBy' for objects implementing
* {@link org.sculptor.framework.domain.JodaAuditable}.
* <p>
* It will grab the user from
* {@link org.sculptor.framework.context.ServiceContext}
* provided by
* {@link org.sculptor.framework.context.ServiceContextStore}.
*
*/
public class JodaAuditListener {
/**
* set audit informations, doesn't modify createdDate and createdBy once
* set. Only works with DomainObjects that implement the JodaAuditable
* interface. In other cases a IllegalArgumentException is thrown.
*
* @param entity
* @return
*/
@PreUpdate
@PrePersist
private void changeAuditInformation(JodaAuditable auditableEntity) {
DateTime lastUpdated = new DateTime();
auditableEntity.setLastUpdated(lastUpdated);
String lastUpdatedBy = ServiceContextStore.getCurrentUser();
auditableEntity.setLastUpdatedBy(lastUpdatedBy);
if (auditableEntity.getCreatedDate() == null)
auditableEntity.setCreatedDate(lastUpdated);
if (auditableEntity.getCreatedBy() == null)
auditableEntity.setCreatedBy(lastUpdatedBy);
}
}