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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 java.io.File;
23  import java.io.FileInputStream;
24  import java.io.IOException;
25  import java.io.InputStream;
26  import java.util.List;
27  import java.util.jar.JarEntry;
28  import java.util.jar.JarOutputStream;
29  
30  import org.codehaus.plexus.util.IOUtil;
31  
32  /**
33   * A resource processor that allows the addition of an arbitrary file
34   * content into the shaded JAR.
35   */
36  public class IncludeResourceTransformer
37      implements ResourceTransformer
38  {
39      File file;
40      String resource;
41  
42      public boolean canTransformResource( String r )
43      {
44          return false;
45      }
46  
47      public void processResource( String resource, InputStream is, List relocators )
48          throws IOException
49      {
50  
51      }
52  
53      public boolean hasTransformedResource()
54      {
55          return file != null ? file.exists() : false;
56      }
57  
58      public void modifyOutputStream( JarOutputStream jos )
59          throws IOException
60      {
61          jos.putNextEntry( new JarEntry( resource ) );
62  
63          InputStream in = new FileInputStream( file );
64          IOUtil.copy( in, jos );
65          in.close();
66      }
67  }