001    /**
002     * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portal.kernel.nio;
016    
017    import java.io.IOException;
018    
019    import java.nio.file.FileStore;
020    import java.nio.file.FileSystem;
021    import java.nio.file.Path;
022    import java.nio.file.PathMatcher;
023    import java.nio.file.WatchService;
024    import java.nio.file.attribute.UserPrincipalLookupService;
025    import java.nio.file.spi.FileSystemProvider;
026    
027    import java.util.Iterator;
028    import java.util.Set;
029    
030    /**
031     * @author Shuyang Zhou
032     */
033    public class FileSystemWrapper extends FileSystem {
034    
035            public FileSystemWrapper(
036                    FileSystem fileSystem, FileSystemProvider fileSystemProvider) {
037    
038                    _fileSystem = fileSystem;
039                    _fileSystemProvider = fileSystemProvider;
040            }
041    
042            @Override
043            public void close() throws IOException {
044                    _fileSystem.close();
045            }
046    
047            @Override
048            public Iterable<FileStore> getFileStores() {
049                    return _fileSystem.getFileStores();
050            }
051    
052            @Override
053            public Path getPath(String first, String... more) {
054                    return new PathWrapper(_fileSystem.getPath(first, more), this);
055            }
056    
057            @Override
058            public PathMatcher getPathMatcher(String syntaxAndPattern) {
059                    return _fileSystem.getPathMatcher(syntaxAndPattern);
060            }
061    
062            @Override
063            public Iterable<Path> getRootDirectories() {
064                    Iterable<Path> iterable = _fileSystem.getRootDirectories();
065    
066                    final Iterator<Path> iterator = iterable.iterator();
067    
068                    return new Iterable<Path>() {
069    
070                            @Override
071                            public Iterator<Path> iterator() {
072                                    return new Iterator<Path>() {
073    
074                                            @Override
075                                            public boolean hasNext() {
076                                                    return iterator.hasNext();
077                                            }
078    
079                                            @Override
080                                            public Path next() {
081                                                    return new PathWrapper(
082                                                            iterator.next(), FileSystemWrapper.this);
083                                            }
084    
085                                            @Override
086                                            public void remove() {
087                                                    iterator.remove();
088                                            }
089    
090                                    };
091                            }
092    
093                    };
094            }
095    
096            @Override
097            public String getSeparator() {
098                    return _fileSystem.getSeparator();
099            }
100    
101            @Override
102            public UserPrincipalLookupService getUserPrincipalLookupService() {
103                    return _fileSystem.getUserPrincipalLookupService();
104            }
105    
106            @Override
107            public boolean isOpen() {
108                    return _fileSystem.isOpen();
109            }
110    
111            @Override
112            public boolean isReadOnly() {
113                    return _fileSystem.isReadOnly();
114            }
115    
116            @Override
117            public WatchService newWatchService() throws IOException {
118                    return _fileSystem.newWatchService();
119            }
120    
121            @Override
122            public FileSystemProvider provider() {
123                    return _fileSystemProvider;
124            }
125    
126            @Override
127            public Set<String> supportedFileAttributeViews() {
128                    return _fileSystem.supportedFileAttributeViews();
129            }
130    
131            private final FileSystem _fileSystem;
132            private final FileSystemProvider _fileSystemProvider;
133    
134    }