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Java > Open Source Codes > org > apache > commons > vfs > provider > webdav > WebDavFileSystem


1 /*
2  * Copyright 2002-2005 The Apache Software 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.apache.commons.vfs.provider.webdav;
17
18 import org.apache.commons.httpclient.HttpClient;
19 import org.apache.commons.httpclient.HttpConnectionManager;
20 import org.apache.commons.vfs.FileName;
21 import org.apache.commons.vfs.FileObject;
22 import org.apache.commons.vfs.FileSystem;
23 import org.apache.commons.vfs.FileSystemException;
24 import org.apache.commons.vfs.FileSystemOptions;
25 import org.apache.commons.vfs.provider.AbstractFileSystem;
26 import org.apache.commons.vfs.provider.GenericFileName;
27
28 import java.util.Collection JavaDoc;
29
30 /**
31  * A WebDAV file system.
32  *
33  * @author <a HREF="mailto:adammurdoch@apache.org">Adam Murdoch</a>
34  */
35 public class WebDavFileSystem
36     extends AbstractFileSystem
37     implements FileSystem
38 {
39     private final HttpClient client;
40
41     protected WebDavFileSystem(final GenericFileName rootName, final HttpClient client, final FileSystemOptions fileSystemOptions)
42     {
43         super(rootName, null, fileSystemOptions);
44
45         this.client = client;
46     }
47
48     /**
49      * Adds the capabilities of this file system.
50      */
51     protected void addCapabilities(final Collection JavaDoc caps)
52     {
53         caps.addAll(WebdavFileProvider.capabilities);
54     }
55
56     /**
57      * Returns the client for this file system.
58      */
59     protected HttpClient getClient() throws FileSystemException
60     {
61         return client;
62     }
63
64     protected void closeHttpClientConnection() throws FileSystemException
65     {
66         HttpConnectionManager mgr = getClient().getHttpConnectionManager();
67         if (mgr instanceof WebdavConnectionManager)
68         {
69             ((WebdavConnectionManager) mgr).releaseLocalConnection();
70         }
71     }
72
73     /**
74      * Creates a file object. This method is called only if the requested
75      * file is not cached.
76      */
77     protected FileObject createFile(final FileName name)
78     {
79         final GenericFileName fileName = (GenericFileName) name;
80         return new WebdavFileObject(fileName, this);
81     }
82 }
83
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