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1   package org.apache.maven.shared.artifact.filter.resolve;
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.Collection;
23  import java.util.Collections;
24  
25  /**
26   * A simple filter to include artifacts from a list of patterns. The artifact pattern syntax is of the form:
27   * 
28   * <pre>
29   * [groupId]:[artifactId]:[extension]:[version]
30   * [groupId]:[artifactId]:[extension]:[classifier]:[version]
31   * </pre>
32   * <p>
33   * Where each pattern segment is optional and supports full and partial <code>*</code> wildcards. An empty pattern
34   * segment is treated as an implicit wildcard. Version can be a range in case a {@code VersionScheme} is specified.
35   * </p>
36   * <p>
37   * For example, <code>org.apache.*</code> would match all artifacts whose group id started with
38   * <code>org.apache.</code> , and <code>:::*-SNAPSHOT</code> would match all snapshot artifacts.
39   * </p>
40   * 
41   * @author Robert Scholte
42   * @since 3.0
43   * 
44   * @see org.sonatype.aether.util.filter.PatternInclusionsDependencyFilter
45   * @see org.eclipse.aether.util.filter.PatternInclusionsDependencyFilter
46   * @see org.sonatype.aether.version.VersionScheme
47   * @see org.eclipse.aether.version.VersionScheme
48   */
49  public class PatternInclusionsFilter implements TransformableFilter
50  {
51      
52      private final Collection<String> includes;
53      
54      /**
55       * The default constructor specifying a collection of pattern based keys which must be included.
56       * 
57       * @param includes the includes
58       */
59      public PatternInclusionsFilter( Collection<String> includes )
60      {
61          this.includes = Collections.unmodifiableCollection( includes );
62      }
63      
64      /**
65       * Get the includes
66       * 
67       * @return the includes, 
68       */
69      public final Collection<String> getIncludes()
70      {
71          return includes;
72      }
73  
74      /**
75       * Transform this filter to a tool specific implementation
76       * 
77       * @param transformer the transformer, must not be {@code null}
78       */
79      @Override
80      public <T> T transform( FilterTransformer<T> transformer )
81      {
82          return transformer.transform( this );
83      }
84  }