jdk/src/solaris/classes/sun/nio/fs/UnixFileSystemProvider.java
author alanb
Fri, 28 Jan 2011 09:28:43 +0000
changeset 8158 77d9c0f1c19f
parent 5506 202f599c92aa
child 9035 1255eb81cc2f
child 9025 a72fc1fc4b71
permissions -rw-r--r--
7006126: (fs) Updates to file system API (1/2011) Reviewed-by: chegar, sherman
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
2057
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
     1
/*
5506
202f599c92aa 6943119: Rebrand source copyright notices
ohair
parents: 3065
diff changeset
     2
 * Copyright (c) 2008, 2009, Oracle and/or its affiliates. All rights reserved.
2057
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
     3
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
     4
 *
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
     5
 * This code is free software; you can redistribute it and/or modify it
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
     6
 * under the terms of the GNU General Public License version 2 only, as
5506
202f599c92aa 6943119: Rebrand source copyright notices
ohair
parents: 3065
diff changeset
     7
 * published by the Free Software Foundation.  Oracle designates this
2057
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
     8
 * particular file as subject to the "Classpath" exception as provided
5506
202f599c92aa 6943119: Rebrand source copyright notices
ohair
parents: 3065
diff changeset
     9
 * by Oracle in the LICENSE file that accompanied this code.
2057
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    10
 *
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    11
 * This code is distributed in the hope that it will be useful, but WITHOUT
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    12
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    13
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    14
 * version 2 for more details (a copy is included in the LICENSE file that
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    15
 * accompanied this code).
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    16
 *
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    17
 * You should have received a copy of the GNU General Public License version
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    18
 * 2 along with this work; if not, write to the Free Software Foundation,
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    19
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    20
 *
5506
202f599c92aa 6943119: Rebrand source copyright notices
ohair
parents: 3065
diff changeset
    21
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
202f599c92aa 6943119: Rebrand source copyright notices
ohair
parents: 3065
diff changeset
    22
 * or visit www.oracle.com if you need additional information or have any
202f599c92aa 6943119: Rebrand source copyright notices
ohair
parents: 3065
diff changeset
    23
 * questions.
2057
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    24
 */
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    25
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    26
package sun.nio.fs;
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    27
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    28
import java.nio.file.*;
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    29
import java.nio.file.attribute.*;
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    30
import java.nio.channels.*;
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    31
import java.net.URI;
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    32
import java.util.concurrent.ExecutorService;
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    33
import java.io.IOException;
8158
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
    34
import java.io.FilePermission;
2057
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    35
import java.util.*;
8158
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
    36
import java.security.AccessController;
2057
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    37
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    38
import sun.nio.ch.ThreadPool;
8158
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
    39
import sun.security.util.SecurityConstants;
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
    40
import static sun.nio.fs.UnixNativeDispatcher.*;
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
    41
import static sun.nio.fs.UnixConstants.*;
2057
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    42
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    43
/**
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    44
 * Base implementation of FileSystemProvider
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    45
 */
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    46
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    47
public abstract class UnixFileSystemProvider
8158
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
    48
    extends AbstractFileSystemProvider
2057
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    49
{
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    50
    private static final String USER_DIR = "user.dir";
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    51
    private final UnixFileSystem theFileSystem;
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    52
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    53
    public UnixFileSystemProvider() {
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    54
        String userDir = System.getProperty(USER_DIR);
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    55
        theFileSystem = newFileSystem(userDir);
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    56
    }
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    57
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    58
    /**
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    59
     * Constructs a new file system using the given default directory.
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    60
     */
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    61
    abstract UnixFileSystem newFileSystem(String dir);
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    62
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    63
    @Override
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    64
    public final String getScheme() {
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    65
        return "file";
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    66
    }
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    67
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    68
    private void checkUri(URI uri) {
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    69
        if (!uri.getScheme().equalsIgnoreCase(getScheme()))
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    70
            throw new IllegalArgumentException("URI does not match this provider");
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    71
        if (uri.getAuthority() != null)
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    72
            throw new IllegalArgumentException("Authority component present");
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    73
        if (uri.getPath() == null)
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    74
            throw new IllegalArgumentException("Path component is undefined");
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    75
        if (!uri.getPath().equals("/"))
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    76
            throw new IllegalArgumentException("Path component should be '/'");
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    77
        if (uri.getQuery() != null)
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    78
            throw new IllegalArgumentException("Query component present");
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    79
        if (uri.getFragment() != null)
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    80
            throw new IllegalArgumentException("Fragment component present");
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    81
    }
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    82
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    83
    @Override
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    84
    public final FileSystem newFileSystem(URI uri, Map<String,?> env) {
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    85
        checkUri(uri);
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    86
        throw new FileSystemAlreadyExistsException();
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    87
    }
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    88
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    89
    @Override
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    90
    public final FileSystem getFileSystem(URI uri) {
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    91
        checkUri(uri);
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    92
        return theFileSystem;
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    93
    }
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    94
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    95
    @Override
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    96
    public Path getPath(URI uri) {
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    97
        return UnixUriUtils.fromUri(theFileSystem, uri);
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    98
    }
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
    99
8158
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   100
    UnixPath checkPath(Path obj) {
2057
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
   101
        if (obj == null)
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
   102
            throw new NullPointerException();
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
   103
        if (!(obj instanceof UnixPath))
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
   104
            throw new ProviderMismatchException();
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
   105
        return (UnixPath)obj;
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
   106
    }
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
   107
8158
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   108
    boolean followLinks(LinkOption... options) {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   109
        boolean followLinks = true;
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   110
        for (LinkOption option: options) {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   111
            if (option == LinkOption.NOFOLLOW_LINKS) {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   112
                followLinks = false;
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   113
                continue;
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   114
            }
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   115
            if (option == null)
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   116
                throw new NullPointerException();
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   117
            throw new AssertionError("Should not get here");
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   118
        }
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   119
        return followLinks;
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   120
    }
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   121
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   122
    @Override
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   123
    @SuppressWarnings("unchecked")
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   124
    public <V extends FileAttributeView> V getFileAttributeView(Path obj,
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   125
                                                                Class<V> type,
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   126
                                                                LinkOption... options)
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   127
    {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   128
        UnixPath file = UnixPath.toUnixPath(obj);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   129
        boolean followLinks =  followLinks(options);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   130
        if (type == BasicFileAttributeView.class)
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   131
            return (V) UnixFileAttributeViews.createBasicView(file, followLinks);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   132
        if (type == PosixFileAttributeView.class)
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   133
            return (V) UnixFileAttributeViews.createPosixView(file, followLinks);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   134
        if (type == FileOwnerAttributeView.class)
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   135
            return (V) UnixFileAttributeViews.createOwnerView(file, followLinks);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   136
        if (type == null)
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   137
            throw new NullPointerException();
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   138
        return (V) null;
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   139
    }
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   140
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   141
    @Override
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   142
    @SuppressWarnings("unchecked")
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   143
    public <A extends BasicFileAttributes> A readAttributes(Path file,
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   144
                                                               Class<A> type,
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   145
                                                               LinkOption... options)
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   146
        throws IOException
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   147
    {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   148
        Class<? extends BasicFileAttributeView> view;
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   149
        if (type == BasicFileAttributes.class)
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   150
            view = BasicFileAttributeView.class;
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   151
        else if (type == PosixFileAttributes.class)
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   152
            view = PosixFileAttributeView.class;
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   153
        else if (type == null)
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   154
            throw new NullPointerException();
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   155
        else
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   156
            throw new UnsupportedOperationException();
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   157
        return (A) getFileAttributeView(file, view, options).readAttributes();
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   158
    }
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   159
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   160
    @Override
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   161
    protected DynamicFileAttributeView getFileAttributeView(Path obj,
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   162
                                                            String name,
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   163
                                                            LinkOption... options)
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   164
    {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   165
        UnixPath file = UnixPath.toUnixPath(obj);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   166
        boolean followLinks = followLinks(options);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   167
        if (name.equals("basic"))
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   168
            return UnixFileAttributeViews.createBasicView(file, followLinks);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   169
        if (name.equals("posix"))
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   170
            return UnixFileAttributeViews.createPosixView(file, followLinks);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   171
        if (name.equals("unix"))
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   172
            return UnixFileAttributeViews.createUnixView(file, followLinks);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   173
        if (name.equals("owner"))
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   174
            return UnixFileAttributeViews.createOwnerView(file, followLinks);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   175
        return null;
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   176
    }
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   177
2057
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
   178
    @Override
3065
452aaa2899fc 6838333: New I/O: Update file system API to jsr203/nio2-b101
alanb
parents: 2057
diff changeset
   179
    public FileChannel newFileChannel(Path obj,
452aaa2899fc 6838333: New I/O: Update file system API to jsr203/nio2-b101
alanb
parents: 2057
diff changeset
   180
                                      Set<? extends OpenOption> options,
452aaa2899fc 6838333: New I/O: Update file system API to jsr203/nio2-b101
alanb
parents: 2057
diff changeset
   181
                                      FileAttribute<?>... attrs)
2057
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
   182
        throws IOException
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
   183
    {
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
   184
        UnixPath file = checkPath(obj);
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
   185
        int mode = UnixFileModeAttribute
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
   186
            .toUnixMode(UnixFileModeAttribute.ALL_READWRITE, attrs);
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
   187
        try {
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
   188
            return UnixChannelFactory.newFileChannel(file, options, mode);
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
   189
        } catch (UnixException x) {
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
   190
            x.rethrowAsIOException(file);
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
   191
            return null;
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
   192
        }
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
   193
    }
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
   194
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
   195
    @Override
3065
452aaa2899fc 6838333: New I/O: Update file system API to jsr203/nio2-b101
alanb
parents: 2057
diff changeset
   196
    public AsynchronousFileChannel newAsynchronousFileChannel(Path obj,
452aaa2899fc 6838333: New I/O: Update file system API to jsr203/nio2-b101
alanb
parents: 2057
diff changeset
   197
                                                              Set<? extends OpenOption> options,
452aaa2899fc 6838333: New I/O: Update file system API to jsr203/nio2-b101
alanb
parents: 2057
diff changeset
   198
                                                              ExecutorService executor,
452aaa2899fc 6838333: New I/O: Update file system API to jsr203/nio2-b101
alanb
parents: 2057
diff changeset
   199
                                                              FileAttribute<?>... attrs) throws IOException
2057
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
   200
    {
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
   201
        UnixPath file = checkPath(obj);
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
   202
        int mode = UnixFileModeAttribute
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
   203
            .toUnixMode(UnixFileModeAttribute.ALL_READWRITE, attrs);
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
   204
        ThreadPool pool = (executor == null) ? null : ThreadPool.wrap(executor, 0);
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
   205
        try {
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
   206
            return UnixChannelFactory
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
   207
                .newAsynchronousFileChannel(file, options, mode, pool);
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
   208
        } catch (UnixException x) {
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
   209
            x.rethrowAsIOException(file);
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
   210
            return null;
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
   211
        }
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
   212
    }
8158
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   213
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   214
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   215
    @Override
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   216
    public SeekableByteChannel newByteChannel(Path obj,
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   217
                                              Set<? extends OpenOption> options,
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   218
                                              FileAttribute<?>... attrs)
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   219
         throws IOException
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   220
    {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   221
        UnixPath file = UnixPath.toUnixPath(obj);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   222
        int mode = UnixFileModeAttribute
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   223
            .toUnixMode(UnixFileModeAttribute.ALL_READWRITE, attrs);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   224
        try {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   225
            return UnixChannelFactory.newFileChannel(file, options, mode);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   226
        } catch (UnixException x) {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   227
            x.rethrowAsIOException(file);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   228
            return null;  // keep compiler happy
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   229
        }
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   230
    }
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   231
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   232
    @Override
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   233
    boolean implDelete(Path obj, boolean failIfNotExists) throws IOException {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   234
        UnixPath file = UnixPath.toUnixPath(obj);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   235
        file.checkDelete();
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   236
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   237
        // need file attributes to know if file is directory
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   238
        UnixFileAttributes attrs = null;
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   239
        try {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   240
            attrs = UnixFileAttributes.get(file, false);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   241
            if (attrs.isDirectory()) {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   242
                rmdir(file);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   243
            } else {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   244
                unlink(file);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   245
            }
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   246
            return true;
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   247
        } catch (UnixException x) {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   248
            // no-op if file does not exist
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   249
            if (!failIfNotExists && x.errno() == ENOENT)
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   250
                return false;
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   251
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   252
            // DirectoryNotEmptyException if not empty
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   253
            if (attrs != null && attrs.isDirectory() &&
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   254
                (x.errno() == EEXIST || x.errno() == ENOTEMPTY))
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   255
                throw new DirectoryNotEmptyException(file.getPathForExecptionMessage());
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   256
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   257
            x.rethrowAsIOException(file);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   258
            return false;
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   259
        }
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   260
    }
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   261
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   262
    @Override
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   263
    public void copy(Path source, Path target, CopyOption... options)
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   264
        throws IOException
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   265
    {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   266
        UnixCopyFile.copy(UnixPath.toUnixPath(source),
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   267
                          UnixPath.toUnixPath(target),
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   268
                          options);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   269
    }
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   270
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   271
    @Override
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   272
    public void move(Path source, Path target, CopyOption... options)
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   273
        throws IOException
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   274
    {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   275
        UnixCopyFile.move(UnixPath.toUnixPath(source),
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   276
                          UnixPath.toUnixPath(target),
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   277
                          options);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   278
    }
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   279
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   280
    @Override
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   281
    public void checkAccess(Path obj, AccessMode... modes) throws IOException {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   282
        UnixPath file = UnixPath.toUnixPath(obj);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   283
        boolean e = false;
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   284
        boolean r = false;
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   285
        boolean w = false;
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   286
        boolean x = false;
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   287
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   288
        if (modes.length == 0) {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   289
            e = true;
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   290
        } else {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   291
            for (AccessMode mode: modes) {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   292
                switch (mode) {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   293
                    case READ : r = true; break;
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   294
                    case WRITE : w = true; break;
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   295
                    case EXECUTE : x = true; break;
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   296
                    default: throw new AssertionError("Should not get here");
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   297
                }
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   298
            }
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   299
        }
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   300
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   301
        int mode = 0;
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   302
        if (e || r) {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   303
            file.checkRead();
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   304
            mode |= (r) ? R_OK : F_OK;
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   305
        }
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   306
        if (w) {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   307
            file.checkWrite();
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   308
            mode |= W_OK;
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   309
        }
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   310
        if (x) {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   311
            SecurityManager sm = System.getSecurityManager();
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   312
            if (sm != null) {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   313
                // not cached
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   314
                sm.checkExec(file.getPathForPermissionCheck());
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   315
            }
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   316
            mode |= X_OK;
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   317
        }
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   318
        try {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   319
            access(file, mode);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   320
        } catch (UnixException exc) {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   321
            exc.rethrowAsIOException(file);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   322
        }
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   323
    }
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   324
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   325
    @Override
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   326
    public boolean isSameFile(Path obj1, Path obj2) throws IOException {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   327
        UnixPath file1 = UnixPath.toUnixPath(obj1);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   328
        if (file1.equals(obj2))
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   329
            return true;
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   330
        if (obj2 == null)
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   331
            throw new NullPointerException();
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   332
        if (!(obj2 instanceof UnixPath))
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   333
            return false;
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   334
        UnixPath file2 = (UnixPath)obj2;
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   335
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   336
        // check security manager access to both files
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   337
        file1.checkRead();
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   338
        file2.checkRead();
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   339
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   340
        UnixFileAttributes attrs1;
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   341
        UnixFileAttributes attrs2;
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   342
        try {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   343
             attrs1 = UnixFileAttributes.get(file1, true);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   344
        } catch (UnixException x) {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   345
            x.rethrowAsIOException(file1);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   346
            return false;    // keep compiler happy
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   347
        }
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   348
        try {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   349
            attrs2 = UnixFileAttributes.get(file2, true);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   350
        } catch (UnixException x) {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   351
            x.rethrowAsIOException(file2);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   352
            return false;    // keep compiler happy
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   353
        }
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   354
        return attrs1.isSameFile(attrs2);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   355
    }
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   356
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   357
    @Override
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   358
    public boolean isHidden(Path obj) {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   359
        UnixPath file = UnixPath.toUnixPath(obj);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   360
        file.checkRead();
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   361
        UnixPath name = file.getFileName();
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   362
        if (name == null)
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   363
            return false;
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   364
        return (name.asByteArray()[0] == '.');
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   365
    }
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   366
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   367
    /**
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   368
     * Returns a FileStore to represent the file system where the given file
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   369
     * reside.
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   370
     */
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   371
    abstract FileStore getFileStore(UnixPath path) throws IOException;
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   372
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   373
    @Override
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   374
    public FileStore getFileStore(Path obj) throws IOException {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   375
        UnixPath file = UnixPath.toUnixPath(obj);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   376
        SecurityManager sm = System.getSecurityManager();
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   377
        if (sm != null) {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   378
            sm.checkPermission(new RuntimePermission("getFileStoreAttributes"));
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   379
            file.checkRead();
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   380
        }
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   381
        return getFileStore(file);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   382
    }
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   383
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   384
    @Override
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   385
    public void createDirectory(Path obj, FileAttribute<?>... attrs)
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   386
        throws IOException
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   387
    {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   388
        UnixPath dir = UnixPath.toUnixPath(obj);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   389
        dir.checkWrite();
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   390
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   391
        int mode = UnixFileModeAttribute
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   392
            .toUnixMode(UnixFileModeAttribute.ALL_PERMISSIONS, attrs);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   393
        try {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   394
            mkdir(dir, mode);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   395
        } catch (UnixException x) {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   396
            x.rethrowAsIOException(dir);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   397
        }
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   398
    }
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   399
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   400
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   401
    @Override
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   402
    public DirectoryStream<Path> newDirectoryStream(Path obj, DirectoryStream.Filter<? super Path> filter)
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   403
        throws IOException
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   404
    {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   405
        UnixPath dir = UnixPath.toUnixPath(obj);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   406
        dir.checkRead();
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   407
        if (filter == null)
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   408
            throw new NullPointerException();
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   409
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   410
        // can't return SecureDirectoryStream on kernels that don't support
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   411
        // openat, etc.
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   412
        if (!supportsAtSysCalls()) {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   413
            try {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   414
                long ptr = opendir(dir);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   415
                return new UnixDirectoryStream(dir, ptr, filter);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   416
            } catch (UnixException x) {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   417
                if (x.errno() == ENOTDIR)
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   418
                    throw new NotDirectoryException(dir.getPathForExecptionMessage());
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   419
                x.rethrowAsIOException(dir);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   420
            }
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   421
        }
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   422
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   423
        // open directory and dup file descriptor for use by
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   424
        // opendir/readdir/closedir
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   425
        int dfd1 = -1;
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   426
        int dfd2 = -1;
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   427
        long dp = 0L;
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   428
        try {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   429
            dfd1 = open(dir, O_RDONLY, 0);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   430
            dfd2 = dup(dfd1);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   431
            dp = fdopendir(dfd1);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   432
        } catch (UnixException x) {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   433
            if (dfd1 != -1)
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   434
                UnixNativeDispatcher.close(dfd1);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   435
            if (dfd2 != -1)
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   436
                UnixNativeDispatcher.close(dfd2);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   437
            if (x.errno() == UnixConstants.ENOTDIR)
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   438
                throw new NotDirectoryException(dir.getPathForExecptionMessage());
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   439
            x.rethrowAsIOException(dir);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   440
        }
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   441
        return new UnixSecureDirectoryStream(dir, dp, dfd2, filter);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   442
    }
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   443
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   444
    @Override
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   445
    public void createSymbolicLink(Path obj1, Path obj2, FileAttribute<?>... attrs)
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   446
        throws IOException
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   447
    {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   448
        UnixPath link = UnixPath.toUnixPath(obj1);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   449
        UnixPath target = UnixPath.toUnixPath(obj2);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   450
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   451
        // no attributes supported when creating links
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   452
        if (attrs.length > 0) {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   453
            UnixFileModeAttribute.toUnixMode(0, attrs);  // may throw NPE or UOE
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   454
            throw new UnsupportedOperationException("Initial file attributes" +
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   455
                "not supported when creating symbolic link");
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   456
        }
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   457
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   458
        // permission check
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   459
        SecurityManager sm = System.getSecurityManager();
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   460
        if (sm != null) {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   461
            sm.checkPermission(new LinkPermission("symbolic"));
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   462
            link.checkWrite();
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   463
        }
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   464
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   465
        // create link
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   466
        try {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   467
            symlink(target.asByteArray(), link);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   468
        } catch (UnixException x) {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   469
            x.rethrowAsIOException(link);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   470
        }
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   471
    }
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   472
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   473
    @Override
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   474
    public void createLink(Path obj1, Path obj2) throws IOException {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   475
        UnixPath link = UnixPath.toUnixPath(obj1);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   476
        UnixPath existing = UnixPath.toUnixPath(obj2);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   477
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   478
        // permission check
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   479
        SecurityManager sm = System.getSecurityManager();
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   480
        if (sm != null) {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   481
            sm.checkPermission(new LinkPermission("hard"));
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   482
            link.checkWrite();
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   483
            existing.checkWrite();
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   484
        }
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   485
        try {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   486
            link(existing, link);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   487
        } catch (UnixException x) {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   488
            x.rethrowAsIOException(link, existing);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   489
        }
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   490
    }
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   491
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   492
    @Override
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   493
    public Path readSymbolicLink(Path obj1) throws IOException {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   494
        UnixPath link = UnixPath.toUnixPath(obj1);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   495
        // permission check
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   496
        SecurityManager sm = System.getSecurityManager();
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   497
        if (sm != null) {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   498
            FilePermission perm = new FilePermission(link.getPathForPermissionCheck(),
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   499
                SecurityConstants.FILE_READLINK_ACTION);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   500
            AccessController.checkPermission(perm);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   501
        }
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   502
        try {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   503
            byte[] target = readlink(link);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   504
            return new UnixPath(link.getFileSystem(), target);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   505
        } catch (UnixException x) {
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   506
           if (x.errno() == UnixConstants.EINVAL)
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   507
                throw new NotLinkException(link.getPathForExecptionMessage());
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   508
            x.rethrowAsIOException(link);
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   509
            return null;    // keep compiler happy
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   510
        }
77d9c0f1c19f 7006126: (fs) Updates to file system API (1/2011)
alanb
parents: 5506
diff changeset
   511
    }
2057
3acf8e5e2ca0 6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff changeset
   512
}