jdk-24/test/jdk/java/nio/file/Files/SymlinkTime.java
2019-05-02 13:25:00 -07:00

122 lines
5.0 KiB
Java

/*
* Copyright (c) 2019, 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.
*
* 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.
*/
/* @test
* @bug 8220793
* @summary Unit test for updating access and modification times of symlinks
* @requires (os.family == "linux" | os.family == "mac" | os.family == "windows")
* @library ..
* @build SymlinkTime
* @run main/othervm SymlinkTime
*/
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.LinkOption;
import java.nio.file.Path;
import java.nio.file.attribute.BasicFileAttributes;
import java.nio.file.attribute.BasicFileAttributeView;
import java.nio.file.attribute.FileTime;
public class SymlinkTime {
public static void main(String[] args) throws IOException {
Path dir = TestUtil.createTemporaryDirectory();
if (!TestUtil.supportsLinks(dir)) {
System.out.println("Links not supported: skipping test");
return;
}
try {
// Create file and symbolic link to it
final Path file = dir.resolve("file");
final Path link = dir.resolve("link");
Files.createFile(file);
try {
// Delay creating the link to get different time attributes
Thread.currentThread().sleep(5000);
} catch (InterruptedException ignored) {
}
Files.createSymbolicLink(link, file);
// Save file modification and access times
BasicFileAttributeView view = Files.getFileAttributeView(link,
BasicFileAttributeView.class);
BasicFileAttributes attr = view.readAttributes();
printTimes("Original file times", attr);
FileTime fileModTime = attr.lastModifiedTime();
FileTime fileAccTime = attr.lastAccessTime();
// Read link modification and access times
view = Files.getFileAttributeView(link,
BasicFileAttributeView.class, LinkOption.NOFOLLOW_LINKS);
attr = view.readAttributes();
printTimes("Original link times", attr);
// Set new base time and offset increment
long base = 1000000000000L; // 2001-09-09T01:46:40Z
long delta = 1000*60L;
// Set new link modification and access times
FileTime linkModTime = FileTime.fromMillis(base + delta);
FileTime linkAccTime = FileTime.fromMillis(base + 2L*delta);
view.setTimes(linkModTime, linkAccTime, null);
// Verify link modification and access times updated correctly
view = Files.getFileAttributeView(link,
BasicFileAttributeView.class, LinkOption.NOFOLLOW_LINKS);
attr = view.readAttributes();
printTimes("Updated link times", attr);
check("Link", attr, linkModTime, linkAccTime);
// Verify file modification and access times unchanged
view = Files.getFileAttributeView(file,
BasicFileAttributeView.class);
attr = view.readAttributes();
printTimes("File times", attr);
check("File", attr, fileModTime, fileAccTime);
} finally {
TestUtil.removeAll(dir);
}
}
private static void check(String pathType, BasicFileAttributes attr,
FileTime modTimeExpected, FileTime accTimeExpected) {
if (!attr.lastModifiedTime().equals(modTimeExpected) ||
!attr.lastAccessTime().equals(accTimeExpected)) {
String message = String.format(
"%s - modification time: expected %s, actual %s;%n" +
"access time: expected %s, actual %s.%n", pathType,
modTimeExpected, attr.lastModifiedTime(),
accTimeExpected, attr.lastAccessTime());
throw new RuntimeException(message);
}
}
private static void printTimes(String label, BasicFileAttributes attr) {
System.out.format
("%s%ncreation: %s%nmodification: %s%naccess: %s%n%n",
label, attr.creationTime(), attr.lastModifiedTime(),
attr.lastAccessTime());
}
}