001    /**
002     * Copyright (c) 2000-2013 Liferay, Inc. All rights reserved.
003     *
004     * The contents of this file are subject to the terms of the Liferay Enterprise
005     * Subscription License ("License"). You may not use this file except in
006     * compliance with the License. You can obtain a copy of the License by
007     * contacting Liferay, Inc. See the License for the specific language governing
008     * permissions and limitations under the License, including but not limited to
009     * distribution rights of the Software.
010     *
011     *
012     *
013     */
014    
015    package com.liferay.portal.dao.jdbc;
016    
017    import com.liferay.portal.kernel.dao.jdbc.CurrentConnection;
018    import com.liferay.portal.kernel.security.pacl.DoPrivileged;
019    
020    import java.sql.Connection;
021    
022    import javax.sql.DataSource;
023    
024    import org.springframework.jdbc.datasource.ConnectionHolder;
025    import org.springframework.transaction.support.TransactionSynchronizationManager;
026    
027    /**
028     * @author Shuyang Zhou
029     */
030    @DoPrivileged
031    public class CurrentConnectionImpl implements CurrentConnection {
032    
033            @Override
034            public Connection getConnection(DataSource dataSource) {
035                    ConnectionHolder connectionHolder =
036                            (ConnectionHolder)TransactionSynchronizationManager.getResource(
037                                    dataSource);
038    
039                    if (connectionHolder == null) {
040                            return null;
041                    }
042                    else {
043                            return connectionHolder.getConnection();
044                    }
045            }
046    
047    }