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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  package org.apache.maven.plugins.shade.resource;
20  
21  import java.io.IOException;
22  import java.io.InputStream;
23  import java.util.List;
24  import java.util.jar.JarOutputStream;
25  
26  import org.apache.maven.plugins.shade.relocation.Relocator;
27  
28  /**
29   * A resource processor that prevents the inclusion of an arbitrary
30   * resource into the shaded JAR.
31   */
32  public class DontIncludeResourceTransformer extends AbstractCompatibilityTransformer {
33      String resource;
34  
35      List<String> resources;
36  
37      @Override
38      public boolean canTransformResource(String r) {
39          if ((resource != null && !resource.isEmpty()) && r.endsWith(resource)) {
40              return true;
41          }
42  
43          if (resources != null) {
44              for (String resourceEnd : resources) {
45                  if (r.endsWith(resourceEnd)) {
46                      return true;
47                  }
48              }
49          }
50  
51          return false;
52      }
53  
54      @Override
55      public void processResource(String resource, InputStream is, List<Relocator> relocators, long time)
56              throws IOException {
57          // no op
58      }
59  
60      @Override
61      public boolean hasTransformedResource() {
62          return false;
63      }
64  
65      @Override
66      public void modifyOutputStream(JarOutputStream os) throws IOException {
67          // no op
68      }
69  }