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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  package org.apache.rat.policy;
20  
21  import java.util.Collection;
22  import java.util.Collections;
23  import java.util.SortedSet;
24  
25  import org.apache.rat.api.Document;
26  import org.apache.rat.document.IDocumentAnalyser;
27  import org.apache.rat.license.ILicenseFamily;
28  import org.apache.rat.license.LicenseFamilySetFactory;
29  
30  /**
31   * A default Document Analyser that determines if the matched license is in the
32   * set of approved licenses.
33   */
34  public class DefaultPolicy implements IDocumentAnalyser {
35      private final SortedSet<ILicenseFamily> approvedLicenseFamilies;
36  
37      /**
38       * Constructor with the list of approved license families.
39       * 
40       * @param approvedLicenseFamilies the approved license families.
41       */
42      public DefaultPolicy(final Collection<ILicenseFamily> approvedLicenseFamilies) {
43          this.approvedLicenseFamilies = LicenseFamilySetFactory.emptyLicenseFamilySet();
44          this.approvedLicenseFamilies.addAll(approvedLicenseFamilies);
45      }
46  
47      /**
48       * Adds an ILicenseFamily to the list of approved licenses.
49       * 
50       * @param approvedLicense license to be approved.
51       */
52      public void add(ILicenseFamily approvedLicense) {
53          this.approvedLicenseFamilies.add(approvedLicense);
54      }
55  
56      @Override
57      public void analyse(final Document document) {
58          if (document != null) {
59              document.getMetaData().setApprovedLicenses(getApprovedLicenseFamilies());
60          }
61      }
62  
63      /**
64       * Gets an unmodifiable reference to the SortedSet of approved licenses that
65       * this policy is holding.
66       * 
67       * @return sorted set of license family definitions.
68       */
69      public SortedSet<ILicenseFamily> getApprovedLicenseFamilies() {
70          return Collections.unmodifiableSortedSet(approvedLicenseFamilies);
71      }
72  }