/*
 * Data Hub Service (DHuS) - For Space data distribution.
 * Copyright (C) 2013,2014,2015 GAEL Systems
 *
 * This file is part of DHuS software sources.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
package fr.gael.dhus.database.util;

import java.util.Iterator;

import javax.annotation.PostConstruct;
import javax.annotation.Resource;

import org.hibernate.annotations.common.reflection.ReflectionManager;
import org.hibernate.cfg.Configuration;
import org.hibernate.ejb.event.EntityCallbackHandler;
import org.hibernate.mapping.PersistentClass;
import org.springframework.orm.hibernate3.annotation
      .AnnotationSessionFactoryBean;
import org.springframework.stereotype.Component;

@Component
public class EntityCallbackHandlerInitializer
{
  @Resource
  private AnnotationSessionFactoryBean annotationSessionFactory;

  @Resource
  private EntityCallbackHandler entityCallbackHandler;

  @PostConstruct
  public void init() throws ClassNotFoundException
  {
    final Configuration configuration = annotationSessionFactory
          .getConfiguration();
    final ReflectionManager reflectionManager = configuration
          .getReflectionManager();
    final Iterator<PersistentClass> classMappings = configuration
          .getClassMappings();
    while (classMappings.hasNext()) 
    {
       entityCallbackHandler.add(reflectionManager.classForName(
          classMappings.next().getClassName(), this.getClass()),
          reflectionManager);
    }
  }
}