030a13d8fe
4313887: New I/O: Improved filesystem interface 4607272: New I/O: Support asynchronous I/O Reviewed-by: sherman, chegar
71 lines
2.5 KiB
Java
71 lines
2.5 KiB
Java
/*
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* Copyright 2008-2009 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any 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 FileVisitor<Path>() {
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public FileVisitResult preVisitDirectory(Path dir) {
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return maybeTerminate();
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}
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public FileVisitResult preVisitDirectoryFailed(Path dir, IOException exc) {
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return maybeTerminate();
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}
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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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public FileVisitResult postVisitDirectory(Path dir, IOException x) {
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return maybeTerminate();
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}
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public FileVisitResult visitFileFailed(Path file, IOException x) {
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return maybeTerminate();
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}
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});
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}
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}
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