| /* |
| * Copyright 2008-2009 Sun Microsystems, Inc. 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. |
| * |
| * 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| * CA 95054 USA or visit www.sun.com if you need additional information or |
| * have any questions. |
| */ |
| |
| import java.nio.file.*; |
| import java.nio.file.attribute.*; |
| import java.io.IOException; |
| import java.util.*; |
| |
| /** |
| * Unit test for Files.walkFileTree to test TERMINATE return value |
| */ |
| |
| public class TerminateWalk { |
| |
| static final Random rand = new Random(); |
| static boolean terminated; |
| |
| static FileVisitResult maybeTerminate() { |
| if (terminated) |
| throw new RuntimeException("FileVisitor invoked after termination"); |
| if (rand.nextInt(10) == 0) { |
| terminated = true; |
| return FileVisitResult.TERMINATE; |
| } else { |
| return FileVisitResult.CONTINUE; |
| } |
| } |
| |
| public static void main(String[] args) throws Exception { |
| Path dir = Paths.get(args[0]); |
| |
| Files.walkFileTree(dir, new FileVisitor<Path>() { |
| public FileVisitResult preVisitDirectory(Path dir) { |
| return maybeTerminate(); |
| } |
| public FileVisitResult preVisitDirectoryFailed(Path dir, IOException exc) { |
| return maybeTerminate(); |
| } |
| public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) { |
| return maybeTerminate(); |
| } |
| public FileVisitResult postVisitDirectory(Path dir, IOException x) { |
| return maybeTerminate(); |
| } |
| public FileVisitResult visitFileFailed(Path file, IOException x) { |
| return maybeTerminate(); |
| } |
| }); |
| } |
| } |