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1   /*
2    * Copyright 2010-2015 The plexus developers.
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    *      http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  package org.codehaus.plexus.archiver.zip;
17  
18  import java.io.IOException;
19  import org.apache.commons.compress.archivers.zip.ZipArchiveEntry;
20  import org.apache.commons.compress.archivers.zip.ZipFile;
21  import org.codehaus.plexus.components.io.functions.InputStreamTransformer;
22  import org.codehaus.plexus.components.io.functions.SymlinkDestinationSupplier;
23  
24  /**
25   * A {@link ZipResource} that represents symbolic link.
26   */
27  public class ZipSymlinkResource
28      extends ZipResource
29      implements SymlinkDestinationSupplier
30  {
31  
32      private final String symlinkDestination;
33  
34      public ZipSymlinkResource( ZipFile zipFile, ZipArchiveEntry entry, InputStreamTransformer streamTransformer )
35      {
36          super( zipFile, entry, streamTransformer );
37          try
38          {
39              symlinkDestination = zipFile.getUnixSymlink( entry );
40          }
41          catch ( IOException e )
42          {
43              throw new RuntimeException( e );
44          }
45      }
46  
47      @Override
48      public String getSymlinkDestination()
49          throws IOException
50      {
51          return symlinkDestination;
52      }
53  
54      @Override
55      public boolean isSymbolicLink()
56      {
57          return true;
58      }
59  
60  }