/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 * 
 * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
 * 
 * Portions Copyright Apache Software Foundation.
 * 
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License. You can obtain
 * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
 * or glassfish/bootstrap/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 * 
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
 * Sun designates this particular file as subject to the "Classpath" exception
 * as provided by Sun in the GPL Version 2 section of the License file that
 * accompanied this code.  If applicable, add the following below the License
 * Header, with the fields enclosed by brackets [] replaced by your own
 * identifying information: "Portions Copyrighted [year]
 * [name of copyright owner]"
 * 
 * Contributor(s):
 * 
 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
 * only if the new code is made subject to such option by the copyright
 * holder.
 */

package org.apache.taglibs.standard.tag.common.sql;

import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;

import javax.sql.DataSource;

import org.apache.taglibs.standard.resources.Resources;


/**
 * <p>A simple <code>DataSource</code> wrapper for the standard
 * <code>DriverManager</code> class.
 * 
 * @author Hans Bergsten
 */
public class DataSourceWrapper implements DataSource {
    private String driverClassName;
    private String jdbcURL;
    private String userName;
    private String password;

    public void setDriverClassName(String driverClassName) 
	throws ClassNotFoundException, InstantiationException, 
	       IllegalAccessException {

	this.driverClassName = driverClassName;
        Class.forName(driverClassName, true, 
            Thread.currentThread().getContextClassLoader()).newInstance();
    }

    public void setJdbcURL(String jdbcURL) {
	this.jdbcURL = jdbcURL;
    }

    public void setUserName(String userName) {
	this.userName = userName;
    }

    public void setPassword(String password) {
	this.password = password;
    }

    /**
     * Returns a Connection using the DriverManager and all
     * set properties.
     */
    public Connection getConnection() throws SQLException {
	Connection conn = null;
	if (userName != null) {
	    conn = DriverManager.getConnection(jdbcURL, userName, password);
	}
	else {
	    conn = DriverManager.getConnection(jdbcURL);
	}
	return conn;
    }

    /**
     * Always throws a SQLException. Username and password are set
     * in the constructor and can not be changed.
     */
    public Connection getConnection(String username, String password) 
            throws SQLException {
        throw new SQLException(Resources.getMessage("NOT_SUPPORTED"));
    }
    
    /**
     * Always throws a SQLException. Not supported.
     */
    public int getLoginTimeout() throws SQLException {
        throw new SQLException(Resources.getMessage("NOT_SUPPORTED"));
    }
    
    /**
     * Always throws a SQLException. Not supported.
     */
    public PrintWriter getLogWriter() throws SQLException {
        throw new SQLException(Resources.getMessage("NOT_SUPPORTED"));
    }
    
    /**
     * Always throws a SQLException. Not supported.
     */
    public void setLoginTimeout(int seconds) throws SQLException {
        throw new SQLException(Resources.getMessage("NOT_SUPPORTED"));
    }
    
    /**
     * Always throws a SQLException. Not supported.
     */
    public synchronized void setLogWriter(PrintWriter out) throws SQLException {
        throw new SQLException(Resources.getMessage("NOT_SUPPORTED"));
    }


}