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1   package org.apache.maven.shared.dependency.analyzer.asm;
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.objectweb.asm.AnnotationVisitor;
23  import org.objectweb.asm.Opcodes;
24  import org.objectweb.asm.Type;
25  
26  /**
27   * Computes the set of classes referenced by visited code.
28   * Inspired by <code>org.objectweb.asm.depend.DependencyVisitor</code> in the ASM dependencies example.
29   *
30   * @author <a href="mailto:markhobson@gmail.com">Mark Hobson</a>
31   * @version $Id$
32   */
33  public class DefaultAnnotationVisitor
34      extends AnnotationVisitor
35  {
36      private final ResultCollector resultCollector;
37  
38      public DefaultAnnotationVisitor( ResultCollector resultCollector )
39      {
40          super( Opcodes.ASM6 );
41          this.resultCollector = resultCollector;
42      }
43  
44      public void visit( final String name, final Object value )
45      {
46          if ( value instanceof Type )
47          {
48              resultCollector.addType( (Type) value );
49          }
50      }
51  
52      public void visitEnum( final String name, final String desc, final String value )
53      {
54          resultCollector.addDesc( desc );
55      }
56  
57      public AnnotationVisitor visitAnnotation( final String name, final String desc )
58      {
59          resultCollector.addDesc( desc );
60  
61          return this;
62      }
63  
64      /*
65       * @see org.objectweb.asm.AnnotationVisitor#visitArray(java.lang.String)
66       */
67      public AnnotationVisitor visitArray( final String name )
68      {
69          return this;
70      }
71  
72  }