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1   /* Copyright 2004 Acegi Technology Pty Limited
2    *
3    * Licensed under the Apache License, Version 2.0 (the "License");
4    * you may not use this file except in compliance with the License.
5    * You may obtain a copy of the License at
6    *
7    *     http://www.apache.org/licenses/LICENSE-2.0
8    *
9    * Unless required by applicable law or agreed to in writing, software
10   * distributed under the License is distributed on an "AS IS" BASIS,
11   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12   * See the License for the specific language governing permissions and
13   * limitations under the License.
14   */
15  
16  package org.acegisecurity.providers.cas.populator;
17  
18  import org.acegisecurity.AuthenticationException;
19  import org.acegisecurity.providers.cas.CasAuthoritiesPopulator;
20  import org.acegisecurity.userdetails.UserDetailsService;
21  import org.acegisecurity.userdetails.UserDetails;
22  
23  import org.springframework.beans.factory.InitializingBean;
24  import org.springframework.util.Assert;
25  
26  
27  /***
28   * Populates the CAS authorities via an {@link UserDetailsService}.
29   * 
30   * <P>
31   * The additional information (username, password, enabled status etc)  an
32   * <code>AuthenticationDao</code> implementation provides about  a
33   * <code>User</code> is ignored. Only the <code>GrantedAuthority</code>s are
34   * relevant to this class.
35   * </p>
36   *
37   * @author Ben Alex
38   * @version $Id: DaoCasAuthoritiesPopulator.java,v 1.6 2005/11/30 00:20:12 benalex Exp $
39   */
40  public class DaoCasAuthoritiesPopulator implements CasAuthoritiesPopulator,
41      InitializingBean {
42      //~ Instance fields ========================================================
43  
44      private UserDetailsService userDetailsService;
45  
46      //~ Methods ================================================================
47  
48      public void setUserDetailsService(UserDetailsService authenticationDao) {
49          this.userDetailsService = authenticationDao;
50      }
51  
52      public UserDetailsService getUserDetailsService() {
53          return userDetailsService;
54      }
55  
56      public UserDetails getUserDetails(String casUserId)
57          throws AuthenticationException {
58          return this.userDetailsService.loadUserByUsername(casUserId);
59      }
60  
61      public void afterPropertiesSet() throws Exception {
62          Assert.notNull(this.userDetailsService, "An authenticationDao must be set");
63      }
64  }