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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.artifact.resolver.filter;
20  
21  import java.util.ArrayList;
22  import java.util.Iterator;
23  import java.util.LinkedHashSet;
24  import java.util.List;
25  import java.util.Set;
26  
27  import org.apache.maven.artifact.Artifact;
28  
29  /**
30   * Filter to include from a list of artifact patterns.
31   *
32   */
33  public class IncludesArtifactFilter implements ArtifactFilter {
34      private final Set<String> patterns;
35  
36      public IncludesArtifactFilter(List<String> patterns) {
37          this.patterns = new LinkedHashSet<>(patterns);
38      }
39  
40      public boolean include(Artifact artifact) {
41          String id = artifact.getGroupId() + ":" + artifact.getArtifactId();
42  
43          boolean matched = false;
44          for (Iterator<String> i = patterns.iterator(); i.hasNext() & !matched; ) {
45              // TODO what about wildcards? Just specifying groups? versions?
46              if (id.equals(i.next())) {
47                  matched = true;
48              }
49          }
50          return matched;
51      }
52  
53      public List<String> getPatterns() {
54          return new ArrayList<>(patterns);
55      }
56  
57      @Override
58      public int hashCode() {
59          int hash = 17;
60          hash = hash * 31 + patterns.hashCode();
61  
62          return hash;
63      }
64  
65      @Override
66      public boolean equals(Object obj) {
67          if (this == obj) {
68              return true;
69          }
70  
71          // make sure IncludesArtifactFilter is not equal ExcludesArtifactFilter!
72          if (obj == null || getClass() != obj.getClass()) {
73              return false;
74          }
75  
76          IncludesArtifactFilter other = (IncludesArtifactFilter) obj;
77  
78          return patterns.equals(other.patterns);
79      }
80  }