/* Copyright 2004, 2005, 2006 Acegi Technology Pty Limited

  *

  * 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.acegisecurity.userdetails.memory;

 import org.acegisecurity.userdetails.UserDetails;

 import org.acegisecurity.userdetails.UserDetailsService;

 import org.acegisecurity.userdetails.UsernameNotFoundException;

 import org.springframework.beans.factory.InitializingBean;

 import org.springframework.dao.DataAccessException;

 import org.springframework.util.Assert;

 import java.util.Properties;

 /**

  * Retrieves user details from an in-memory list created by the bean context.

  *

  * @author Ben Alex

  * @version $Id: InMemoryDaoImpl.java 1496 2006-05-23 13:38:33Z benalex $

  */

 public class InMemoryDaoImpl implements UserDetailsService, InitializingBean {

     //~ Instance fields ================================================================================================

     private UserMap userMap;

     //~ Methods ========================================================================================================

     public void afterPropertiesSet() throws Exception {

         Assert.notNull(this.userMap,

             "A list of users, passwords, enabled/disabled status and their granted authorities must be set");

     }

     public UserMap getUserMap() {

         return userMap;

     }

     public UserDetails loadUserByUsername(String username)

         throws UsernameNotFoundException, DataAccessException {

         return userMap.getUser(username);

     }

     public void setUserMap(UserMap userMap) {

         this.userMap = userMap;

     }

     /**

      * Modifies the internal <code>UserMap</code> to reflect the <code>Properties</code> instance passed. This

      * helps externalise user information to another file etc.

      *

      * @param props the account information in a <code>Properties</code> object format

      */

     public void setUserProperties(Properties props) {

         UserMap userMap = new UserMap();

         this.userMap = UserMapEditor.addUsersFromProperties(userMap, props);

     }

 }