1 package org.apache.fulcrum.security.model.basic;
2
3 /*
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21 import org.apache.fulcrum.security.acl.AccessControlList;
22 import org.apache.fulcrum.security.entity.User;
23 import org.apache.fulcrum.security.model.ACLFactory;
24 import org.apache.fulcrum.security.model.basic.entity.BasicUser;
25 import org.apache.fulcrum.security.spi.AbstractManager;
26 import org.apache.fulcrum.security.util.GroupSet;
27 import org.apache.fulcrum.security.util.UnknownEntityException;
28
29 /**
30 *
31 * This factory creates instance of the DynamicAccessControlList
32 *
33 * @author <a href="mailto:epugh@upstate.com">Eric Pugh</a>
34 * @version $Id$
35 */
36 public class BasicACLFactory extends AbstractManager implements ACLFactory
37 {
38 /**
39 * Construct a new ACL object.
40 *
41 * This constructs a new ACL object from the configured class and
42 * initializes it with the supplied roles and permissions.
43 *
44 * @param groupSet
45 * The GroupSet that this ACL should contain
46 *
47 * @return an object implementing ACL interface.
48 * @throws UnknownEntityException
49 * if the object could not be instantiated.
50 */
51 private BasicAccessControlListImpl getAclInstance(GroupSet groupSet) throws UnknownEntityException
52 {
53 BasicAccessControlListImpl accessControlList;
54
55 try
56 {
57 accessControlList = new BasicAccessControlListImpl(groupSet);
58 }
59 catch (Exception e)
60 {
61 throw new UnknownEntityException("Failed to instantiate an ACL implementation object", e);
62 }
63
64 return accessControlList;
65 }
66
67 /* (non-Javadoc)
68 * @see org.apache.fulcrum.security.model.ACLFactory#getAccessControlList(org.apache.fulcrum.security.entity.User)
69 */
70 public <T extends AccessControlList> T getAccessControlList(User user)
71 {
72 GroupSet groupSet = ((BasicUser) user).getGroups();
73
74 try
75 {
76 @SuppressWarnings("unchecked")
77 T aclInstance = (T) getAclInstance(groupSet);
78 return aclInstance;
79 }
80 catch (UnknownEntityException uue)
81 {
82 throw new RuntimeException(uue.getMessage(), uue);
83 }
84 }
85 }