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1   /*
2    * Licensed to The Apereo Foundation under one or more contributor license
3    * agreements. See the NOTICE file distributed with this work for additional
4    * information regarding copyright ownership.
5    *
6    *
7    * The Apereo Foundation licenses this file to you under the Educational
8    * Community License, Version 2.0 (the "License"); you may not use this file
9    * except in compliance with the License. You may obtain a copy of the License
10   * at:
11   *
12   *   http://opensource.org/licenses/ecl2.txt
13   *
14   * Unless required by applicable law or agreed to in writing, software
15   * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
16   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
17   * License for the specific language governing permissions and limitations under
18   * the License.
19   *
20   */
21  
22  package org.opencastproject.security.api;
23  
24  import java.util.Iterator;
25  import java.util.List;
26  
27  /**
28   * Mix-in interface for directories that can list roles.
29   */
30  public interface RoleProvider {
31  
32    /**
33     * Returns the roles for this user or an empty array if no roles are applicable.
34     *
35     * @param userName
36     *          the user id
37     * @return the set of roles
38     */
39    List<Role> getRolesForUser(String userName);
40  
41    /**
42     * Returns the identifier for the organization that is defining this set of roles.
43     *
44     * @return the defining organization
45     */
46    String getOrganization();
47  
48    /**
49     * Return the found roles as an iterator.
50     *
51     * @param query
52     *          the query. Use the wildcards "_" to match any single character and "%" to match an arbitrary number of
53     *          characters (including zero characters).
54     * @param offset
55     *          the offset
56     * @param limit
57     *          the limit. 0 means no limit
58     * @return an iterator of role's
59     * @throws IllegalArgumentException
60     *           if the query is <code>null</code>
61     */
62    Iterator<Role> findRoles(String query, Role.Target target, int offset, int limit);
63  
64  }