ElephantPU.java

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/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2017 Lluis Turró Cutiller <http://www.turro.org/>
 *
 * 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 org.turro.elephant.db;
 
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import org.turro.action.IElephantCloseable;
import org.turro.annotation.ElephantCloseable;
import org.turro.elephant.entities.db.EntityParticipation;
import org.turro.elephant.entities.db.Poll;
import org.turro.elephant.entities.db.Post;
import org.turro.elephant.entities.db.Topic;
import org.turro.jpa.Dao;
import org.turro.jpa.DaoFactory;
import org.turro.version.Module;
import org.turro.version.Version;
 
@ElephantCloseable
public class ElephantPU extends Dao implements IElephantCloseable {
 
  private static final DaoFactory factory = new DaoFactory();
 
  @Override
  protected EntityManagerFactory getFactory() {
    return factory.getEmf();
  }
 
  @Override
  protected EntityManager createEntityManager() {
    return factory.createEntityManager("elephantPU", "Elephant");
  }
  
  @Override
  protected EntityManager createCachedEntityManager() {
    return factory.createCachedEntityManager("elephantPU", "Elephant");
  }
 
  @Override
  public String getPath(Object object) {
    return getObjectPath(object);
  }
  
  public static String getObjectPath(Object object) {
    if(object instanceof Poll) {
      return "/poll/" + ((Poll) object).getId(); 
    } else if(object instanceof Topic) {
      return "/topic/" + ((Topic) object).getId(); 
    } else if(object instanceof Post) {
      return "/post/" + ((Post) object).getId(); 
    } else if(object instanceof EntityParticipation) {
      return "/entity-participation/" + ((EntityParticipation) object).complexId().build(); 
    }
    return null;
  }
  
  public static Module getModule() {
    return new Module(new Version("0"), "Elephant");
  }
 
  @Override
  public void closeElephant() {
//    try {
//      DriverManager.getConnection("jdbc:derby:;shutdown=true");
//    } catch (SQLException ex) {
//      if(!"XJ015".equals(ex.getSQLState())) {
//        Logger.getLogger(ElephantPU.class.getName()).log(Level.SEVERE, ElephantContext.logMsg(null), ex);
//      }      
//    }
  }
 
}