1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    * 
9    *      http://www.apache.org/licenses/LICENSE-2.0
10   * 
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  package org.apache.commons.vfs.provider.test;
18  
19  import org.apache.commons.vfs.FileObject;
20  import org.apache.commons.vfs.FileSystem;
21  import org.apache.commons.vfs.FileSystemManager;
22  import org.apache.commons.vfs.FilesCache;
23  import org.apache.commons.vfs.impl.DefaultFileSystemManager;
24  import org.apache.commons.vfs.test.ProviderTestConfig;
25  
26  /***
27   * A provider config that wraps another provider, to run the tests via
28   * junctions.
29   *
30   * @author <a href="mailto:adammurdoch@apache.org">Adam Murdoch</a>
31   * @version $Revision: 480428 $ $Date: 2006-11-29 07:15:24 +0100 (Mi, 29 Nov 2006) $
32   */
33  public class JunctionProviderConfig
34      implements ProviderTestConfig
35  {
36      private final ProviderTestConfig config;
37  
38      public JunctionProviderConfig(final ProviderTestConfig config)
39      {
40          this.config = config;
41      }
42  
43      public FilesCache getFilesCache()
44      {
45          return config.getFilesCache();
46      }
47  
48      /***
49       * Prepares the file system manager.
50       */
51      public void prepare(final DefaultFileSystemManager manager) throws Exception
52      {
53          config.prepare(manager);
54      }
55  
56      /***
57       * Returns the base folder for tests.
58       */
59      public FileObject getBaseTestFolder(final FileSystemManager manager) throws Exception
60      {
61          final FileObject baseFolder = config.getBaseTestFolder(manager);
62  
63          // Create an empty file system, then link in the base folder
64          final FileSystem newFs = manager.createVirtualFileSystem("vfs:").getFileSystem();
65          final String junctionPoint = "/some/dir";
66          newFs.addJunction(junctionPoint, baseFolder);
67  
68          return newFs.resolveFile(junctionPoint);
69      }
70  }