1 package org.apache.maven.plugins.shade.resource;
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22 import java.io.ByteArrayInputStream;
23 import java.io.ByteArrayOutputStream;
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
34
35
36 public class AppendingTransformer
37 implements ResourceTransformer
38 {
39 String resource;
40 ByteArrayOutputStream data = new ByteArrayOutputStream();
41
42 public boolean canTransformResource( String r )
43 {
44 if ( resource != null && resource.equalsIgnoreCase( r ) )
45 {
46 return true;
47 }
48
49 return false;
50 }
51
52 public void processResource( String resource, InputStream is, List relocators )
53 throws IOException
54 {
55 IOUtil.copy( is, data );
56 data.write( '\n' );
57
58 is.close();
59 }
60
61 public boolean hasTransformedResource()
62 {
63 return data.size() > 0;
64 }
65
66 public void modifyOutputStream( JarOutputStream jos )
67 throws IOException
68 {
69 jos.putNextEntry( new JarEntry( resource ) );
70
71 IOUtil.copy( new ByteArrayInputStream( data.toByteArray() ), jos );
72 data.reset();
73 }
74 }