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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.vfs2.provider.webdav;
18  
19  import java.net.URLStreamHandler;
20  import java.util.Collection;
21  
22  import org.apache.commons.httpclient.HttpClient;
23  import org.apache.commons.vfs2.Capability;
24  import org.apache.commons.vfs2.FileObject;
25  import org.apache.commons.vfs2.FileSystemOptions;
26  import org.apache.commons.vfs2.provider.AbstractFileName;
27  import org.apache.commons.vfs2.provider.DefaultURLStreamHandler;
28  import org.apache.commons.vfs2.provider.GenericFileName;
29  import org.apache.commons.vfs2.provider.http.HttpFileSystem;
30  
31  /**
32   * A WebDAV file system.
33   *
34   * @since 2.0
35   */
36  public class WebdavFileSystem extends HttpFileSystem {
37  
38      /**
39       * Constructs a new instance.
40       *
41       * @param rootName root base name
42       * @param httpClient {@link HttpClient} instance
43       * @param fileSystemOptions Options to build this file system.
44       */
45      protected WebdavFileSystem(final GenericFileName rootName, final HttpClient httpClient,
46              final FileSystemOptions fileSystemOptions) {
47          super(rootName, httpClient, fileSystemOptions);
48      }
49  
50      /**
51       * Returns the capabilities of this file system.
52       *
53       * @param caps The Capabilities to add.
54       */
55      @Override
56      protected void addCapabilities(final Collection<Capability> caps) {
57          caps.addAll(WebdavFileProvider.capabilities);
58      }
59  
60      /**
61       * Creates a file object. This method is called only if the requested file is not cached.
62       *
63       * @param name the FileName.
64       * @return The created FileObject.
65       */
66      @Override
67      protected FileObject createFile(final AbstractFileName name) {
68  
69          return new WebdavFileObject(name, this);
70      }
71  
72      @Override
73      protected HttpClient getClient() {
74          // make accessible
75          return super.getClient();
76      }
77  
78      /**
79       * Gets a URLStreamHandler.
80       *
81       * @return The URLStreamHandler.
82       */
83      public URLStreamHandler getURLStreamHandler() {
84          return new DefaultURLStreamHandler(getContext(), getFileSystemOptions());
85      }
86  }