/**
* Copyright 2011 Nube Technologies
*
* 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 co.nubetech.crux.dao;
import java.util.List;
import org.apache.log4j.Logger;
import org.hibernate.JDBCException;
import org.hibernate.Session;
import org.hibernate.Transaction;
import co.nubetech.crux.model.Connection;
import co.nubetech.crux.util.CruxException;
import com.googlecode.s2hibernate.struts2.plugin.annotations.SessionTarget;
import com.googlecode.s2hibernate.struts2.plugin.annotations.TransactionTarget;
public class ConnectionDAO {
final static Logger logger = Logger
.getLogger(co.nubetech.crux.dao.ConnectionDAO.class);
@SessionTarget
public Session session;
@TransactionTarget
public Transaction transaction;
public Connection findById(Long id) throws CruxException {
Connection connection;
try {
logger.debug("Id to find connection is: " + id);
connection = (Connection) session.get(Connection.class, id);
connection.getId();
} catch (NullPointerException e) {
logger.debug(id + " not exists.");
throw new CruxException(
"Selected connection does not exists in the database.", e);
}
return connection;
}
public long save(Connection connection) throws CruxException {
try {
transaction.begin();
session.saveOrUpdate(connection);
transaction.commit();
} catch (JDBCException e) {
transaction.rollback();
throw new CruxException(e.getSQLException().getMessage(), e);
}
return connection.getId();
}
public List<Connection> findAll() {
System.out.println("session is " + session);
List<Connection> result = session.createQuery(
"from Connection order by id").list();
return result;
}
public long delete(Connection connection) throws CruxException {
long id = connection.getId();
try {
transaction.begin();
session.delete(connection);
transaction.commit();
} catch (JDBCException e) {
transaction.rollback();
throw new CruxException(
"This connection is associated with mappings. Please delete them first.",
e);
}
return id;
}
}