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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    * 
9    *      http://www.apache.org/licenses/LICENSE-2.0
10   * 
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  package org.apache.jetspeed.profiler.rules.impl;
18  
19  import javax.security.auth.Subject;
20  
21  import org.apache.commons.logging.Log;
22  import org.apache.commons.logging.LogFactory;
23  import org.apache.jetspeed.profiler.rules.RuleCriterion;
24  import org.apache.jetspeed.profiler.rules.RuleCriterionResolver;
25  import org.apache.jetspeed.request.RequestContext;
26  import org.apache.jetspeed.security.RolePrincipal;
27  
28  /***
29   * Role combo resolver 
30   * Combines all roles into one string
31   * Example: roles = a,b,c
32   * RoleCombo = a-b-c
33   *
34   * @author <a href="mailto:taylor@apache.org">David Sean Taylor</a>
35   * @version $Id: RoleCriterionResolver.java 187756 2004-10-15 22:58:43Z ate $
36   */
37  public class RoleComboCriterionResolver
38      extends StandardResolver
39      implements RuleCriterionResolver
40  {
41      protected final static Log log = LogFactory.getLog(UserCriterionResolver.class);
42      
43      /* (non-Javadoc)
44       * @see org.apache.jetspeed.profiler.rules.RuleCriterionResolver#resolve(org.apache.jetspeed.request.RequestContext, org.apache.jetspeed.profiler.rules.RuleCriterion)
45       */    
46      public String resolve(RequestContext context, RuleCriterion criterion)
47      {
48          String value = super.resolve(context, criterion);
49          if (value != null)
50          {
51              return value;
52          }
53              
54          Subject subject = context.getSubject();
55          if (subject == null)
56          {
57              String msg = "Invalid (null) Subject in request pipeline";
58              log.error(msg);
59              return null;
60          }
61              
62          return combinePrincipals(context, criterion, subject, RolePrincipal.class);
63       }
64      
65      /* (non-Javadoc)
66       * @see org.apache.jetspeed.profiler.rules.RuleCriterionResolver#isControl()
67       */
68      public boolean isControl(RuleCriterion criterion)
69      {
70          return true;
71      }
72      
73      
74  }