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.io.IOException;
  30 import java.util.*;
  31 import java.security.AccessController;
  32 import sun.security.action.GetPropertyAction;
  33 import static sun.nio.fs.SolarisNativeDispatcher.*;
  34 
  35 /**
  36  * Solaris implementation of FileSystem
  37  */
  38 
  39 class SolarisFileSystem extends UnixFileSystem {
  40     private final boolean hasSolaris11Features;
  41 
  42     SolarisFileSystem(UnixFileSystemProvider provider, String dir) {
  43         super(provider, dir);
  44 
  45         // check os.version
  46         String osversion = AccessController
  47             .doPrivileged(new GetPropertyAction("os.version"));
  48         String[] vers = Util.split(osversion, '.');
  49         assert vers.length >= 2;
  50         int majorVersion = Integer.parseInt(vers[0]);
  51         int minorVersion = Integer.parseInt(vers[1]);
  52         this.hasSolaris11Features =
  53             (majorVersion > 5 || (majorVersion == 5 && minorVersion >= 11));
  54     }
  55 
  56     @Override
  57     boolean isSolaris() {
  58         return true;
  59     }
  60 
  61     @Override
  62     public WatchService newWatchService()
  63         throws IOException
  64     {
  65         // FEN available since Solaris 11
  66         if (hasSolaris11Features) {
  67             return new SolarisWatchService(this);
  68         } else {
  69             return new PollingWatchService();
  70         }
  71     }
  72 
  73 
  74     // lazy initialization of the list of supported attribute views
  75     private static class SupportedFileFileAttributeViewsHolder {
  76         static final Set<String> supportedFileAttributeViews =
  77             supportedFileAttributeViews();
  78         private static Set<String> supportedFileAttributeViews() {
  79             Set<String> result = new HashSet<>();
  80             result.addAll(standardFileAttributeViews());
  81             // additional Solaris-specific views
  82             result.add("acl");
  83             result.add("user");
  84             return Collections.unmodifiableSet(result);
  85         }
  86     }
  87 
  88     @Override
  89     public Set<String> supportedFileAttributeViews() {
  90         return SupportedFileFileAttributeViewsHolder.supportedFileAttributeViews;
  91     }
  92 
  93     @Override
  94     void copyNonPosixAttributes(int ofd, int nfd) {
  95         SolarisUserDefinedFileAttributeView.copyExtendedAttributes(ofd, nfd);
  96         // TDB: copy ACL from source to target
  97     }
  98 
  99     /**
 100      * Returns object to iterate over entries in /etc/mnttab
 101      */
 102     @Override
 103     Iterable<UnixMountEntry> getMountEntries() {
 104         ArrayList<UnixMountEntry> entries = new ArrayList<>();
 105         try {
 106             UnixPath mnttab = new UnixPath(this, "/etc/mnttab");
 107             long fp = fopen(mnttab, "r");
 108             try {
 109                 for (;;) {
 110                     UnixMountEntry entry = new UnixMountEntry();
 111                     int res = getextmntent(fp, entry);
 112                     if (res < 0)
 113                         break;
 114                     entries.add(entry);
 115                 }
 116             } finally {
 117                 fclose(fp);
 118             }
 119         } catch (UnixException x) {
 120             // nothing we can do
 121         }
 122         return entries;
 123     }
 124 
 125     @Override
 126     FileStore getFileStore(UnixMountEntry entry) throws IOException {
 127         return new SolarisFileStore(this, entry);
 128     }
 129 }