author | ohair |
Wed, 06 Apr 2011 22:06:11 -0700 | |
changeset 9035 | 1255eb81cc2f |
parent 8158 | 77d9c0f1c19f |
child 17170 | 9f33b89c7978 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2008, 2011, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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import java.nio.file.*; |
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import java.nio.file.attribute.*; |
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import java.io.IOException; |
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import java.util.*; |
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/** |
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* Unit test for Files.walkFileTree to test TERMINATE return value |
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*/ |
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public class TerminateWalk { |
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static final Random rand = new Random(); |
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static boolean terminated; |
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static FileVisitResult maybeTerminate() { |
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if (terminated) |
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throw new RuntimeException("FileVisitor invoked after termination"); |
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if (rand.nextInt(10) == 0) { |
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terminated = true; |
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return FileVisitResult.TERMINATE; |
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} else { |
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return FileVisitResult.CONTINUE; |
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} |
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} |
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public static void main(String[] args) throws Exception { |
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Path dir = Paths.get(args[0]); |
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Files.walkFileTree(dir, new SimpleFileVisitor<Path>() { |
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@Override |
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public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs) { |
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return maybeTerminate(); |
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} |
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@Override |
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public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) { |
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return maybeTerminate(); |
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} |
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@Override |
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public FileVisitResult postVisitDirectory(Path dir, IOException x) { |
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return maybeTerminate(); |
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} |
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}); |
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} |
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} |