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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.maven.index;
20  
21  import java.util.HashSet;
22  import java.util.Set;
23  
24  import org.apache.maven.index.context.IndexingContext;
25  
26  /**
27   * A special reusable filter, that filters the result set to unique Repository-GroupId-ArtifactId combination, leaving
28   * out Version. There is a switch to make the Indexer-wide unique by ignoring repositories too.
29   *
30   * @author cstamas
31   * @deprecated Use {@link UniqueArtifactFilterPostprocessor} instead.
32   */
33  @Deprecated
34  public class UniqueGAArtifactFilterPostprocessor implements ArtifactInfoFilter {
35      private static final String VERSION_LATEST = "LATEST";
36  
37      private final boolean repositoriesIgnored;
38  
39      private final Set<String> gas = new HashSet<>();
40  
41      public UniqueGAArtifactFilterPostprocessor(boolean repositoriesIgnored) {
42          this.repositoriesIgnored = repositoriesIgnored;
43      }
44  
45      public boolean accepts(IndexingContext ctx, ArtifactInfo ai) {
46          String key = ai.getGroupId() + ai.getArtifactId() + ai.getPackaging() + ai.getClassifier();
47  
48          if (!repositoriesIgnored) {
49              key = ai.getRepository() + key;
50          }
51  
52          if (gas.contains(key)) {
53              return false;
54          } else {
55              gas.add(key);
56  
57              postprocess(ctx, ai);
58  
59              return true;
60          }
61      }
62  
63      public void postprocess(IndexingContext ctx, ArtifactInfo ai) {
64          ai.setVersion(VERSION_LATEST);
65  
66          if (repositoriesIgnored) {
67              ai.setContext(null);
68  
69              ai.setRepository(null);
70          }
71      }
72  }