1 /*
   2  * Copyright (c) 2008, 2012, 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 
  26 package sun.nio.fs;
  27 
  28 import java.nio.file.*;
  29 import java.nio.file.attribute.*;
  30 import java.nio.file.spi.FileTypeDetector;
  31 import java.io.IOException;
  32 
  33 /**
  34  * Linux implementation of FileSystemProvider
  35  */
  36 
  37 public class LinuxFileSystemProvider extends UnixFileSystemProvider {
  38     @Override
  39     LinuxFileSystem newFileSystem(String dir) {
  40         return new LinuxFileSystem(this, dir);
  41     }
  42 
  43     @Override
  44     LinuxFileStore getFileStore(UnixPath path) throws IOException {
  45         return new LinuxFileStore(path);
  46     }
  47 
  48     @Override
  49     @SuppressWarnings("unchecked")
  50     public <V extends FileAttributeView> V getFileAttributeView(Path obj,
  51                                                                 Class<V> type,
  52                                                                 LinkOption... options)
  53     {
  54         if (type == DosFileAttributeView.class) {
  55             return (V) new LinuxDosFileAttributeView(UnixPath.toUnixPath(obj),
  56                                                      Util.followLinks(options));
  57         }
  58         if (type == UserDefinedFileAttributeView.class) {
  59             return (V) new LinuxUserDefinedFileAttributeView(UnixPath.toUnixPath(obj),
  60                                                              Util.followLinks(options));
  61         }
  62         return super.getFileAttributeView(obj, type, options);
  63     }
  64 
  65     @Override
  66     public DynamicFileAttributeView getFileAttributeView(Path obj,
  67                                                          String name,
  68                                                          LinkOption... options)
  69     {
  70         if (name.equals("dos")) {
  71             return new LinuxDosFileAttributeView(UnixPath.toUnixPath(obj),
  72                                                  Util.followLinks(options));
  73         }
  74         if (name.equals("user")) {
  75             return new LinuxUserDefinedFileAttributeView(UnixPath.toUnixPath(obj),
  76                                                          Util.followLinks(options));
  77         }
  78         return super.getFileAttributeView(obj, name, options);
  79     }
  80 
  81     @Override
  82     @SuppressWarnings("unchecked")
  83     public <A extends BasicFileAttributes> A readAttributes(Path file,
  84                                                             Class<A> type,
  85                                                             LinkOption... options)
  86         throws IOException
  87     {
  88         if (type == DosFileAttributes.class) {
  89             DosFileAttributeView view =
  90                 getFileAttributeView(file, DosFileAttributeView.class, options);
  91             return (A) view.readAttributes();
  92         } else {
  93             return super.readAttributes(file, type, options);
  94         }
  95     }
  96 
  97     @Override
  98     FileTypeDetector getFileTypeDetector() {
  99         final Path userMimeTypes =
 100                 Paths.get(System.getProperty("user.home"), ".mime.types");
 101 
 102         final Path sysMimeTypes = Paths.get("/etc/mime.types");
 103 
 104         return chain(new GnomeFileTypeDetector(),
 105                 new MimeTypesFileTypeDetector(userMimeTypes),
 106                 new MimeTypesFileTypeDetector(sysMimeTypes),
 107                 new MagicFileTypeDetector());
 108     }
 109 }