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/*
 *
 * The DbUnit Database Testing Framework
 * Copyright (C)2002-2004, DbUnit.org
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */
package org.dbunit;

import java.sql.Connection;
import java.sql.DriverManager;

import org.dbunit.database.DatabaseConnection;
import org.dbunit.database.IDatabaseConnection;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * DatabaseTester that uses JDBC's Driver Manager to create connections.

 *
 * @author Andres Almiray ([email protected])
 * @author Felipe Leme ([email protected])
 * @version $Revision$
 * @since 2.2
 */
public class JdbcDatabaseTester extends AbstractDatabaseTester
{

    /**
     * Logger for this class
     */
    private static final Logger logger = LoggerFactory.getLogger(JdbcDatabaseTester.class);

    private String connectionUrl;
    private String driverClass;
    private String password;
    private String username;

    /**
     * Creates a new JdbcDatabaseTester with the specified properties.

     * Username and Password are set to null.
     *
     * @param driverClass the classname of the JDBC driver to use
     * @param connectionUrl the connection url
     * @throws ClassNotFoundException If the given driverClass was not found
     */
    public JdbcDatabaseTester( String driverClass, String connectionUrl ) 
    throws ClassNotFoundException
    {
        this( driverClass, connectionUrl, null, null );
    }

    /**
     * Creates a new JdbcDatabaseTester with the specified properties.
     *
     * @param driverClass the classname of the JDBC driver to use
     * @param connectionUrl the connection url
     * @param username a username that can has access to the database
     * @param password the user's password
     * @throws ClassNotFoundException If the given driverClass was not found
     */
    public JdbcDatabaseTester( String driverClass, String connectionUrl, String username,
            String password ) 
    throws ClassNotFoundException
    {
        this(driverClass, connectionUrl, username, password, null);
    }

    /**
     * Creates a new JdbcDatabaseTester with the specified properties.
     *
     * @param driverClass the classname of the JDBC driver to use
     * @param connectionUrl the connection url
     * @param username a username that can has access to the database - can be null
     * @param password the user's password - can be null
     * @param schema the database schema to be tested - can be null
     * @throws ClassNotFoundException If the given driverClass was not found
     * @since 2.4.3
     */
    public JdbcDatabaseTester( String driverClass, String connectionUrl, String username,
            String password, String schema ) 
    throws ClassNotFoundException
    {
        super(schema);
        this.driverClass = driverClass;
        this.connectionUrl = connectionUrl;
        this.username = username;
        this.password = password;
        
        assertNotNullNorEmpty( "driverClass", driverClass );
        Class.forName( driverClass );
    }

    public IDatabaseConnection getConnection() throws Exception
    {
        logger.debug("getConnection() - start");

        assertNotNullNorEmpty( "connectionUrl", connectionUrl );
        Connection conn = null;
        if( username == null && password == null ){
            conn = DriverManager.getConnection( connectionUrl );
        }else{
            conn = DriverManager.getConnection( connectionUrl, username, password );
        }
        return new DatabaseConnection( conn, getSchema() );
    }

    public String toString()
    {
        StringBuffer sb = new StringBuffer();
        sb.append(getClass().getName()).append("[");
        sb.append("connectionUrl=").append(this.connectionUrl);
        sb.append(", driverClass=").append(this.driverClass);
        sb.append(", username=").append(this.username);
        sb.append(", password=**********");
        sb.append(", schema=").append(super.getSchema());
        sb.append("]");
        return sb.toString();
    }

}