/* 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.providers.cas.populator;

 import org.acegisecurity.AuthenticationException;

 import org.acegisecurity.providers.cas.CasAuthoritiesPopulator;

 import org.acegisecurity.userdetails.UserDetails;

 import org.acegisecurity.userdetails.UserDetailsService;

 import org.springframework.beans.factory.InitializingBean;

 import org.springframework.util.Assert;

 /**

  * Populates the CAS authorities via an {@link UserDetailsService}.<P>The additional information (username,

  * password, enabled status etc)  an <code>AuthenticationDao</code> implementation provides about  a <code>User</code>

  * is ignored. Only the <code>GrantedAuthority</code>s are relevant to this class.</p>

  *

  * @author Ben Alex

  * @version $Id: DaoCasAuthoritiesPopulator.java 1821 2007-05-17 03:18:35Z raykrueger $

  */

 public class DaoCasAuthoritiesPopulator implements CasAuthoritiesPopulator, InitializingBean {

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

     private UserDetailsService userDetailsService;

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

     public void afterPropertiesSet() throws Exception {

         Assert.notNull(this.userDetailsService, "A UserDetailsService must be set");

     }

     public UserDetails getUserDetails(String casUserId)

         throws AuthenticationException {

         return this.userDetailsService.loadUserByUsername(casUserId);

     }

     public UserDetailsService getUserDetailsService() {

         return userDetailsService;

     }

     public void setUserDetailsService(UserDetailsService userDetailsService) {

         this.userDetailsService = userDetailsService;

     }

 }