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.IOUtil;
24
25 import java.io.File;
26 import java.io.FileInputStream;
27 import java.io.IOException;
28 import java.io.InputStream;
29 import java.util.List;
30 import java.util.jar.JarEntry;
31 import java.util.jar.JarOutputStream;
32
33 /**
34 * A resource processor that allows the addition of an arbitrary file
35 * content into the shaded JAR.
36 */
37 public class IncludeResourceTransformer
38 implements ResourceTransformer
39 {
40 File file;
41
42 String resource;
43
44 public boolean canTransformResource( String r )
45 {
46 return false;
47 }
48
49 public void processResource( String resource, InputStream is, List<Relocator> relocators )
50 throws IOException
51 {
52 // no op
53 }
54
55 public boolean hasTransformedResource()
56 {
57 return file != null ? file.exists() : false;
58 }
59
60 public void modifyOutputStream( JarOutputStream jos )
61 throws IOException
62 {
63 jos.putNextEntry( new JarEntry( resource ) );
64
65 InputStream in = new FileInputStream( file );
66 IOUtil.copy( in, jos );
67 in.close();
68 }
69 }