1/*
2 * Copyright (c) 2008, 2016, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26package sun.nio.fs;
27
28import java.nio.file.*;
29import java.nio.file.attribute.*;
30import java.nio.file.spi.FileTypeDetector;
31import java.io.IOException;
32import java.security.AccessController;
33import sun.security.action.GetPropertyAction;
34
35/**
36 * Linux implementation of FileSystemProvider
37 */
38
39public class LinuxFileSystemProvider extends UnixFileSystemProvider {
40    public LinuxFileSystemProvider() {
41        super();
42    }
43
44    @Override
45    LinuxFileSystem newFileSystem(String dir) {
46        return new LinuxFileSystem(this, dir);
47    }
48
49    @Override
50    LinuxFileStore getFileStore(UnixPath path) throws IOException {
51        return new LinuxFileStore(path);
52    }
53
54    @Override
55    @SuppressWarnings("unchecked")
56    public <V extends FileAttributeView> V getFileAttributeView(Path obj,
57                                                                Class<V> type,
58                                                                LinkOption... options)
59    {
60        if (type == DosFileAttributeView.class) {
61            return (V) new LinuxDosFileAttributeView(UnixPath.toUnixPath(obj),
62                                                     Util.followLinks(options));
63        }
64        if (type == UserDefinedFileAttributeView.class) {
65            return (V) new LinuxUserDefinedFileAttributeView(UnixPath.toUnixPath(obj),
66                                                             Util.followLinks(options));
67        }
68        return super.getFileAttributeView(obj, type, options);
69    }
70
71    @Override
72    public DynamicFileAttributeView getFileAttributeView(Path obj,
73                                                         String name,
74                                                         LinkOption... options)
75    {
76        if (name.equals("dos")) {
77            return new LinuxDosFileAttributeView(UnixPath.toUnixPath(obj),
78                                                 Util.followLinks(options));
79        }
80        if (name.equals("user")) {
81            return new LinuxUserDefinedFileAttributeView(UnixPath.toUnixPath(obj),
82                                                         Util.followLinks(options));
83        }
84        return super.getFileAttributeView(obj, name, options);
85    }
86
87    @Override
88    @SuppressWarnings("unchecked")
89    public <A extends BasicFileAttributes> A readAttributes(Path file,
90                                                            Class<A> type,
91                                                            LinkOption... options)
92        throws IOException
93    {
94        if (type == DosFileAttributes.class) {
95            DosFileAttributeView view =
96                getFileAttributeView(file, DosFileAttributeView.class, options);
97            return (A) view.readAttributes();
98        } else {
99            return super.readAttributes(file, type, options);
100        }
101    }
102
103    @Override
104    FileTypeDetector getFileTypeDetector() {
105        String userHome = GetPropertyAction.privilegedGetProperty("user.home");
106        Path userMimeTypes = Paths.get(userHome, ".mime.types");
107        Path etcMimeTypes = Paths.get("/etc/mime.types");
108
109        return chain(new MimeTypesFileTypeDetector(userMimeTypes),
110                     new MimeTypesFileTypeDetector(etcMimeTypes));
111    }
112}
113