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1   package org.apache.maven.plugins.shade.resource;
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.plugins.shade.relocation.Relocator;
23  import org.codehaus.plexus.util.StringUtils;
24  
25  import java.io.IOException;
26  import java.io.InputStream;
27  import java.util.List;
28  import java.util.jar.JarOutputStream;
29  
30  /**
31   * A resource processor that prevents the inclusion of an arbitrary
32   * resource into the shaded JAR.
33   */
34  public class DontIncludeResourceTransformer
35      implements ResourceTransformer
36  {
37      String resource;
38      
39      List<String> resources;
40  
41      public boolean canTransformResource( String r )
42      {
43          if ( StringUtils.isNotEmpty( resource ) && r.endsWith( resource ) )
44          {
45              return true;
46          }
47          
48          if( resources != null )
49          {
50              for( String resourceEnd : resources )
51              {
52                  if( r.endsWith( resourceEnd ) )
53                  {
54                      return true;
55                  }
56              }
57          }
58  
59          return false;
60      }
61  
62      public void processResource( String resource, InputStream is, List<Relocator> relocators )
63          throws IOException
64      {
65          // no op
66      }
67  
68      public boolean hasTransformedResource()
69      {
70          return false;
71      }
72  
73      public void modifyOutputStream( JarOutputStream os )
74          throws IOException
75      {
76          // no op
77      }
78  }