/*

  * Licensed to the Apache Software Foundation (ASF) under one or more

  * contributor license agreements.  See the NOTICE file distributed with

  * this work for additional information regarding copyright ownership.

  * The ASF licenses this file to You 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 org.apache.commons.dbcp;

 import java.sql.Connection;

 import java.sql.DriverManager;

 import java.sql.SQLException;

 import java.util.Properties;

 /**

  * A {@link DriverManager}-based implementation of {@link ConnectionFactory}.

  *

  * @author Rodney Waldhoff

  * @author Ignacio J. Ortega

  * @author Dirk Verbeeck

  * @version $Revision: 1023401 $ $Date: 2010-10-16 21:54:24 -0400 (Sat, 16 Oct 2010) $

  */

 public class DriverManagerConnectionFactory implements ConnectionFactory {

     static {

         // Related to DBCP-212

         // Driver manager does not sync loading of drivers that use the service

         // provider interface. This will cause issues is multi-threaded

         // environments. This hack makes sure the drivers are loaded before

         // DBCP tries to use them.

         DriverManager.getDrivers();

     }

     /**

      * Constructor for DriverManagerConnectionFactory.

      * @param connectUri a database url of the form 

      * <code> jdbc:<em>subprotocol</em>:<em>subname</em></code>

      * @param props a list of arbitrary string tag/value pairs as

      * connection arguments; normally at least a "user" and "password" 

      * property should be included.

      */

     public DriverManagerConnectionFactory(String connectUri, Properties props) {

         _connectUri = connectUri;

         _props = props;

     }

     /**

      * Constructor for DriverManagerConnectionFactory.

      * @param connectUri a database url of the form 

      * <code>jdbc:<em>subprotocol</em>:<em>subname</em></code>

      * @param uname the database user

      * @param passwd the user's password

      */

     public DriverManagerConnectionFactory(String connectUri, String uname, String passwd) {

         _connectUri = connectUri;

         _uname = uname;

         _passwd = passwd;

     }

     public Connection createConnection() throws SQLException {

         if(null == _props) {

             if((_uname == null) && (_passwd == null)) {

                 return DriverManager.getConnection(_connectUri);

             } else {

                 return DriverManager.getConnection(_connectUri,_uname,_passwd);

             }

         } else {

             return DriverManager.getConnection(_connectUri,_props);

         }

     }

     protected String _connectUri = null;

     protected String _uname = null;

     protected String _passwd = null;

     protected Properties _props = null;

 }