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1   package org.apache.maven.shared.jar.identification.exposers;
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 org.apache.maven.shared.jar.JarAnalyzer;
23  import org.apache.maven.shared.jar.classes.JarClasses;
24  import org.apache.maven.shared.jar.classes.JarClassesAnalysis;
25  import org.apache.maven.shared.jar.identification.JarIdentification;
26  import org.apache.maven.shared.jar.identification.JarIdentificationExposer;
27  
28  import java.util.Iterator;
29  
30  
31  /**
32   * Exposer that examines a JAR file to derive Maven metadata from the classes in a JAR. It will currently identify
33   * potential group IDs from the class packages.
34   * <p/>
35   * Note: if not being used from Plexus, the {@link #setAnalyzer(org.apache.maven.shared.jar.classes.JarClassesAnalysis)}
36   * method must be called to avoid a NullPointerException during the expose method.
37   *
38   * @plexus.component role="org.apache.maven.shared.jar.identification.JarIdentificationExposer" role-hint="jarClasses"
39   */
40  public class JarClassesExposer
41      implements JarIdentificationExposer
42  {
43      /**
44       * @plexus.requirement
45       */
46      private JarClassesAnalysis analyzer;
47  
48      public void expose( JarIdentification identification, JarAnalyzer jarAnalyzer )
49      {
50          JarClasses jarclasses = analyzer.analyze( jarAnalyzer );
51  
52          Iterator it = jarclasses.getPackages().iterator();
53          while ( it.hasNext() )
54          {
55              String packagename = (String) it.next();
56              identification.addGroupId( packagename );
57          }
58      }
59  
60      public void setAnalyzer( JarClassesAnalysis analyzer )
61      {
62          this.analyzer = analyzer;
63      }
64  }