001/*
002 * (C) Copyright 2012 Nuxeo SA (http://nuxeo.com/) and others.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 *
016 * Contributors:
017 *     Florent Guillaume
018 */
019package org.nuxeo.ecm.core.persistence;
020
021import java.sql.Connection;
022import java.sql.SQLException;
023import java.util.Properties;
024
025import javax.naming.NamingException;
026import javax.sql.DataSource;
027import org.hibernate.HibernateException;
028import org.hibernate.cfg.Environment;
029import org.hibernate.connection.ConnectionProvider;
030import org.nuxeo.runtime.datasource.DataSourceHelper;
031
032/**
033 * ConnectionProvider for Hibernate that looks up the datasource
034 * from the nuxeo's container.
035 *
036 * @since 5.7
037 */
038public class NuxeoConnectionProvider implements ConnectionProvider {
039
040    protected DataSource ds;
041
042    @Override
043    public void configure(Properties props) {
044        String name = props.getProperty(Environment.DATASOURCE);
045        try {
046            ds = DataSourceHelper.getDataSource(name);
047        } catch (NamingException cause) {
048            throw new HibernateException("Cannot lookup datasource by name " + name, cause);
049        }
050    }
051
052    @Override
053    public Connection getConnection() throws SQLException {
054        return ds.getConnection();
055    }
056
057    @Override
058    public void closeConnection(Connection connection) throws SQLException {
059        connection.close();
060    }
061
062    @Override
063    public void close() throws HibernateException {
064        ds = null;
065    }
066
067    @Override
068    public boolean supportsAggressiveRelease() {
069        // don't try to close the connection after each statement
070        // (not used if connection release mode is auto)
071        return false;
072    }
073
074}