| /* |
| * Copyright (c) 2008, 2015, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package sun.nio.fs; |
| |
| import java.nio.file.*; |
| import java.nio.file.attribute.*; |
| import java.nio.file.spi.*; |
| import java.util.*; |
| import java.util.regex.Pattern; |
| import java.io.IOException; |
| |
| class WindowsFileSystem |
| extends FileSystem |
| { |
| private final WindowsFileSystemProvider provider; |
| |
| // default directory (is absolute), and default root |
| private final String defaultDirectory; |
| private final String defaultRoot; |
| |
| // package-private |
| WindowsFileSystem(WindowsFileSystemProvider provider, |
| String dir) |
| { |
| this.provider = provider; |
| |
| // parse default directory and check it is absolute |
| WindowsPathParser.Result result = WindowsPathParser.parse(dir); |
| |
| if ((result.type() != WindowsPathType.ABSOLUTE) && |
| (result.type() != WindowsPathType.UNC)) |
| throw new AssertionError("Default directory is not an absolute path"); |
| this.defaultDirectory = result.path(); |
| this.defaultRoot = result.root(); |
| } |
| |
| // package-private |
| String defaultDirectory() { |
| return defaultDirectory; |
| } |
| |
| String defaultRoot() { |
| return defaultRoot; |
| } |
| |
| @Override |
| public FileSystemProvider provider() { |
| return provider; |
| } |
| |
| @Override |
| public String getSeparator() { |
| return "\\"; |
| } |
| |
| @Override |
| public boolean isOpen() { |
| return true; |
| } |
| |
| @Override |
| public boolean isReadOnly() { |
| return false; |
| } |
| |
| @Override |
| public void close() throws IOException { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public Iterable<Path> getRootDirectories() { |
| int drives = 0; |
| try { |
| drives = WindowsNativeDispatcher.GetLogicalDrives(); |
| } catch (WindowsException x) { |
| // shouldn't happen |
| throw new AssertionError(x.getMessage()); |
| } |
| |
| // iterate over roots, ignoring those that the security manager denies |
| ArrayList<Path> result = new ArrayList<>(); |
| SecurityManager sm = System.getSecurityManager(); |
| for (int i = 0; i <= 25; i++) { // 0->A, 1->B, 2->C... |
| if ((drives & (1 << i)) != 0) { |
| StringBuilder sb = new StringBuilder(3); |
| sb.append((char)('A' + i)); |
| sb.append(":\\"); |
| String root = sb.toString(); |
| if (sm != null) { |
| try { |
| sm.checkRead(root); |
| } catch (SecurityException x) { |
| continue; |
| } |
| } |
| result.add(WindowsPath.createFromNormalizedPath(this, root)); |
| } |
| } |
| return Collections.unmodifiableList(result); |
| } |
| |
| /** |
| * Iterator returned by getFileStores method. |
| */ |
| private class FileStoreIterator implements Iterator<FileStore> { |
| private final Iterator<Path> roots; |
| private FileStore next; |
| |
| FileStoreIterator() { |
| this.roots = getRootDirectories().iterator(); |
| } |
| |
| private FileStore readNext() { |
| assert Thread.holdsLock(this); |
| for (;;) { |
| if (!roots.hasNext()) |
| return null; |
| WindowsPath root = (WindowsPath)roots.next(); |
| // ignore if security manager denies access |
| try { |
| root.checkRead(); |
| } catch (SecurityException x) { |
| continue; |
| } |
| try { |
| FileStore fs = WindowsFileStore.create(root.toString(), true); |
| if (fs != null) |
| return fs; |
| } catch (IOException ioe) { |
| // skip it |
| } |
| } |
| } |
| |
| @Override |
| public synchronized boolean hasNext() { |
| if (next != null) |
| return true; |
| next = readNext(); |
| return next != null; |
| } |
| |
| @Override |
| public synchronized FileStore next() { |
| if (next == null) |
| next = readNext(); |
| if (next == null) { |
| throw new NoSuchElementException(); |
| } else { |
| FileStore result = next; |
| next = null; |
| return result; |
| } |
| } |
| |
| @Override |
| public void remove() { |
| throw new UnsupportedOperationException(); |
| } |
| } |
| |
| @Override |
| public Iterable<FileStore> getFileStores() { |
| SecurityManager sm = System.getSecurityManager(); |
| if (sm != null) { |
| try { |
| sm.checkPermission(new RuntimePermission("getFileStoreAttributes")); |
| } catch (SecurityException se) { |
| return Collections.emptyList(); |
| } |
| } |
| return new Iterable<FileStore>() { |
| public Iterator<FileStore> iterator() { |
| return new FileStoreIterator(); |
| } |
| }; |
| } |
| |
| // supported views |
| private static final Set<String> supportedFileAttributeViews = Collections |
| .unmodifiableSet(new HashSet<String>(Arrays.asList("basic", "dos", "acl", "owner", "user"))); |
| |
| @Override |
| public Set<String> supportedFileAttributeViews() { |
| return supportedFileAttributeViews; |
| } |
| |
| @Override |
| public final Path getPath(String first, String... more) { |
| String path; |
| if (more.length == 0) { |
| path = first; |
| } else { |
| StringBuilder sb = new StringBuilder(); |
| sb.append(first); |
| for (String segment: more) { |
| if (segment.length() > 0) { |
| if (sb.length() > 0) |
| sb.append('\\'); |
| sb.append(segment); |
| } |
| } |
| path = sb.toString(); |
| } |
| return WindowsPath.parse(this, path); |
| } |
| |
| @Override |
| public UserPrincipalLookupService getUserPrincipalLookupService() { |
| return LookupService.instance; |
| } |
| |
| private static class LookupService { |
| static final UserPrincipalLookupService instance = |
| new UserPrincipalLookupService() { |
| @Override |
| public UserPrincipal lookupPrincipalByName(String name) |
| throws IOException |
| { |
| return WindowsUserPrincipals.lookup(name); |
| } |
| @Override |
| public GroupPrincipal lookupPrincipalByGroupName(String group) |
| throws IOException |
| { |
| UserPrincipal user = WindowsUserPrincipals.lookup(group); |
| if (!(user instanceof GroupPrincipal)) |
| throw new UserPrincipalNotFoundException(group); |
| return (GroupPrincipal)user; |
| } |
| }; |
| } |
| |
| @Override |
| public PathMatcher getPathMatcher(String syntaxAndInput) { |
| int pos = syntaxAndInput.indexOf(':'); |
| if (pos <= 0 || pos == syntaxAndInput.length()) |
| throw new IllegalArgumentException(); |
| String syntax = syntaxAndInput.substring(0, pos); |
| String input = syntaxAndInput.substring(pos+1); |
| |
| String expr; |
| if (syntax.equalsIgnoreCase(GLOB_SYNTAX)) { |
| expr = Globs.toWindowsRegexPattern(input); |
| } else { |
| if (syntax.equalsIgnoreCase(REGEX_SYNTAX)) { |
| expr = input; |
| } else { |
| throw new UnsupportedOperationException("Syntax '" + syntax + |
| "' not recognized"); |
| } |
| } |
| |
| // match in unicode_case_insensitive |
| final Pattern pattern = Pattern.compile(expr, |
| Pattern.CASE_INSENSITIVE | Pattern.UNICODE_CASE); |
| |
| // return matcher |
| return new PathMatcher() { |
| @Override |
| public boolean matches(Path path) { |
| return pattern.matcher(path.toString()).matches(); |
| } |
| }; |
| } |
| private static final String GLOB_SYNTAX = "glob"; |
| private static final String REGEX_SYNTAX = "regex"; |
| |
| @Override |
| public WatchService newWatchService() |
| throws IOException |
| { |
| return new WindowsWatchService(this); |
| } |
| } |