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1   /*
2    * Copyright 2014 The Codehaus Foundation.
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.resources;
17  
18  import java.io.File;
19  import java.io.IOException;
20  import org.codehaus.plexus.components.io.attributes.SymlinkUtils;
21  import org.codehaus.plexus.components.io.functions.SymlinkDestinationSupplier;
22  
23  /**
24   * A symlink that does not necessarily exist (anywhere).
25   */
26  public class PlexusIoVirtualSymlinkResource extends PlexusIoVirtualFileResource
27      implements SymlinkDestinationSupplier
28  {
29  
30      private final String symnlinkDestination;
31  
32      public PlexusIoVirtualSymlinkResource( File symlinkFile, String symnlinkDestination )
33      {
34          super( symlinkFile, getName( symlinkFile ) );
35          this.symnlinkDestination = symnlinkDestination;
36      }
37  
38      @Override
39      public String getSymlinkDestination()
40          throws IOException
41      {
42          return symnlinkDestination == null
43                     ? SymlinkUtils.readSymbolicLink( getFile() ).toString()
44                     : symnlinkDestination;
45  
46      }
47  
48      @Override public boolean isSymbolicLink()
49      {
50          return true;
51      }
52  
53  }