01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * 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.impl;
18:
19: import org.apache.commons.vfs.FileName;
20: import org.apache.commons.vfs.FileObject;
21: import org.apache.commons.vfs.FileSystemException;
22: import org.apache.commons.vfs.FileType;
23: import org.apache.commons.vfs.provider.AbstractVfsContainer;
24:
25: /**
26: * A virtual filesystem provider.
27: *
28: * @author <a href="mailto:adammurdoch@apache.org">Adam Murdoch</a>
29: * @version $Revision: 480428 $ $Date: 2006-11-28 22:15:24 -0800 (Tue, 28 Nov 2006) $
30: */
31: public class VirtualFileProvider extends AbstractVfsContainer {
32: /**
33: * Creates a virtual file system, with the supplied file as its root.
34: */
35: public FileObject createFileSystem(final FileObject rootFile)
36: throws FileSystemException {
37: final FileName rootName = getContext().getFileSystemManager()
38: .resolveName(rootFile.getName(), FileName.ROOT_PATH);
39: // final FileName rootName =
40: // new BasicFileName(rootFile.getName(), FileName.ROOT_PATH);
41: final VirtualFileSystem fs = new VirtualFileSystem(rootName,
42: rootFile.getFileSystem().getFileSystemOptions());
43: addComponent(fs);
44: fs.addJunction(FileName.ROOT_PATH, rootFile);
45: return fs.getRoot();
46: }
47:
48: /**
49: * Creates an empty virtual file system.
50: */
51: public FileObject createFileSystem(final String rootUri)
52: throws FileSystemException {
53: final FileName rootName = new VirtualFileName(rootUri,
54: FileName.ROOT_PATH, FileType.FOLDER);
55: // final FileName rootName =
56: // new BasicFileName(rootUri, FileName.ROOT_PATH);
57: final VirtualFileSystem fs = new VirtualFileSystem(rootName,
58: null);
59: addComponent(fs);
60: return fs.getRoot();
61: }
62: }
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