datasourceloginmodule.java

是离开的肌肤了卡机是离开的就富利卡及是了的开发及拉考试及的福利科技阿斯利康的肌肤莱卡及时的离开福建阿斯顿发

//========================================================================
//Copyright 2004-2008 Mort Bay Consulting Pty. Ltd.
//------------------------------------------------------------------------
//Licensed 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.mortbay.jetty.plus.jaas.spi;
import java.sql.Connection;
import java.util.Map;

import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.security.auth.Subject;
import javax.security.auth.callback.CallbackHandler;
import javax.sql.DataSource;
// ========================================================================
// $Id: DataSourceLoginModule.java 3462 2008-07-31 04:12:51Z gregw $
// Copyright 1999-2004 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// Licensed 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.
// ========================================================================

/**
 * DataSourceLoginModule
 *
 * A LoginModule that uses a DataSource to retrieve user authentication
 * and authorisation information.
 * 
 * @see org.mortbay.jetty.plus.jaas.spi.JDBCLoginModule
 *
 */
public class DataSourceLoginModule extends AbstractDatabaseLoginModule
{

    private String dbJNDIName;
    private DataSource dataSource;
    
    /* ------------------------------------------------ */
    /** Init LoginModule.
     * Called once by JAAS after new instance created.
     * @param subject 
     * @param callbackHandler 
     * @param sharedState 
     * @param options 
     */
    public void initialize(Subject subject,
                           CallbackHandler callbackHandler,
                           Map sharedState,
                           Map options)
    {
        try
        {
            super.initialize(subject, callbackHandler, sharedState, options);
            
            //get the datasource jndi name
            dbJNDIName = (String)options.get("dbJNDIName");
            
            InitialContext ic = new InitialContext();
            dataSource = (DataSource)ic.lookup("java:comp/env/"+dbJNDIName);
        }
        catch (NamingException e)
        {
            throw new IllegalStateException (e.toString());
        }
    }


    /** 
     * Get a connection from the DataSource
     * @see org.mortbay.jetty.plus.jaas.spi.AbstractDatabaseLoginModule#getConnection()
     * @return
     * @throws Exception
     */
    public Connection getConnection ()
    throws Exception
    {
        return dataSource.getConnection();
    }


    
  

}