1 package org.apache.maven.index;
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
22 import java.util.HashSet;
23 import java.util.Set;
24
25 import org.apache.maven.index.context.IndexingContext;
26
27 /**
28 * A special reusable filter, that filters the result set to unique Repository-GroupId-ArtifactId combination, leaving
29 * out Version. There is a switch to make the Indexer-wide unique by ignoring repositories too.
30 *
31 * @author cstamas
32 * @deprecated Use {@link UniqueArtifactFilterPostprocessor} instead.
33 */
34 public class UniqueGAArtifactFilterPostprocessor
35 implements ArtifactInfoFilter
36 {
37 private static final String VERSION_LATEST = "LATEST";
38
39 private final boolean repositoriesIgnored;
40
41 private final Set<String> gas = new HashSet<String>();
42
43 public UniqueGAArtifactFilterPostprocessor( boolean repositoriesIgnored )
44 {
45 this.repositoriesIgnored = repositoriesIgnored;
46 }
47
48 public boolean accepts( IndexingContext ctx, ArtifactInfo ai )
49 {
50 String key = ai.groupId + ai.artifactId + ai.packaging + ai.classifier;
51
52 if ( !repositoriesIgnored )
53 {
54 key = ai.repository + key;
55 }
56
57 if ( gas.contains( key ) )
58 {
59 return false;
60 }
61 else
62 {
63 gas.add( key );
64
65 postprocess( ctx, ai );
66
67 return true;
68 }
69 }
70
71 public void postprocess( IndexingContext ctx, ArtifactInfo ai )
72 {
73 ai.version = VERSION_LATEST;
74
75 if ( repositoriesIgnored )
76 {
77 ai.context = null;
78
79 ai.repository = null;
80 }
81 }
82 }