1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 *
19 */
20 package org.apache.directory.server.core.authz.support;
21
22
23 import java.util.Collection;
24 import java.util.Iterator;
25
26 import org.apache.directory.api.ldap.aci.ACITuple;
27 import org.apache.directory.api.ldap.aci.MicroOperation;
28 import org.apache.directory.api.ldap.model.entry.Entry;
29 import org.apache.directory.api.ldap.model.exception.LdapException;
30
31
32 /**
33 * An {@link ACITupleFilter} that discard tuples which doesn't contain any
34 * related {@link MicroOperation}s. (18.8.3.4, X.501)
35 *
36 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
37 *
38 */
39 public class MicroOperationFilter implements ACITupleFilter
40 {
41 /**
42 * {@inheritDoc}
43 */
44 @Override
45 public Collection<ACITuple> filter( AciContext aciContext, OperationScope scope, Entry userEntry )
46 throws LdapException
47 {
48 if ( aciContext.getAciTuples().isEmpty() )
49 {
50 return aciContext.getAciTuples();
51 }
52
53 for ( Iterator<ACITuple> i = aciContext.getAciTuples().iterator(); i.hasNext(); )
54 {
55 ACITuple tuple = i.next();
56
57 /*
58 * The ACITuple must contain all the MicroOperations specified within the
59 * microOperations argument. Just matching a single microOperation is not
60 * enough. All must be matched to retain the ACITuple.
61 */
62
63 boolean retain = true;
64
65 for ( MicroOperation microOp : aciContext.getMicroOperations() )
66 {
67 if ( !tuple.getMicroOperations().contains( microOp ) )
68 {
69 retain = false;
70 break;
71 }
72 }
73
74 if ( !retain )
75 {
76 i.remove();
77 }
78 }
79
80 return aciContext.getAciTuples();
81 }
82
83 }