01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * 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.GroupPrincipal;
27:
28: /**
29: * Standard Jetspeed-1 Group resolver.
30: * It first looks at the value in the criterion record.
31: * If it is null, it then falls back to a request parameter.
32: * If it is null it gives up and returns null allowing subclasses
33: * to continue processing.
34: *
35: * @author <a href="mailto:taylor@apache.org">David Sean Taylor</a>
36: * @version $Id: GroupCriterionResolver.java 516448 2007-03-09 16:25:47Z ate $
37: */
38: public class GroupCriterionResolver extends StandardResolver implements
39: RuleCriterionResolver {
40: protected final static Log log = LogFactory
41: .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,
47: RuleCriterion criterion) {
48: String value = super .resolve(context, criterion);
49: if (value != null) {
50: return value;
51: }
52:
53: Subject subject = context.getSubject();
54: if (subject == null) {
55: String msg = "Invalid (null) Subject in request pipeline";
56: log.error(msg);
57: return null;
58: }
59:
60: return resolvePrincipals(context, criterion, subject,
61: GroupPrincipal.class);
62: }
63:
64: /* (non-Javadoc)
65: * @see org.apache.jetspeed.profiler.rules.RuleCriterionResolver#isControl()
66: */
67: public boolean isControl(RuleCriterion criterion) {
68: return true;
69: }
70:
71: }
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