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/*
* Copyright (c) 2008, 2024, 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.
*/
import java.nio.file.*;
import java.nio.file.attribute.BasicFileAttributes;
import java.util.Random;
import java.io.IOException;
public class TestUtil {
private TestUtil() {
}
static Path createTemporaryDirectory(String where) throws IOException {
Path dir = FileSystems.getDefault().getPath(where);
return Files.createTempDirectory(dir, "name");
}
static Path createTemporaryDirectory() throws IOException {
return Files.createTempDirectory("name");
}
static void removeAll(Path dir) throws IOException {
Files.walkFileTree(dir, new FileVisitor<Path>() {
@Override
public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs) {
return FileVisitResult.CONTINUE;
}
@Override
public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) {
try {
Files.delete(file);
} catch (IOException x) {
System.err.format("Unable to delete %s: %s\n", file, x);
}
return FileVisitResult.CONTINUE;
}
@Override
public FileVisitResult postVisitDirectory(Path dir, IOException exc) {
try {
Files.delete(dir);
} catch (IOException x) {
System.err.format("Unable to delete %s: %s\n", dir, x);
}
return FileVisitResult.CONTINUE;
}
@Override
public FileVisitResult visitFileFailed(Path file, IOException exc) {
System.err.format("Unable to visit %s: %s\n", file, exc);
return FileVisitResult.CONTINUE;
}
});
}
static void deleteUnchecked(Path file) {
try {
Files.delete(file);
} catch (IOException exc) {
System.err.format("Unable to delete %s: %s\n", file, exc);
}
}
/**
* Creates a directory tree in the given directory so that the total
* size of the path is more than 2k in size. This is used for long
* path tests on Windows.
*/
static Path createDirectoryWithLongPath(Path dir)
throws IOException
{
StringBuilder sb = new StringBuilder();
for (int i=0; i<240; i++) {
sb.append('A');
}
String name = sb.toString();
do {
dir = dir.resolve(name).resolve(".");
Files.createDirectory(dir);
} while (dir.toString().length() < 2048);
return dir;
}
/**
* Returns true if symbolic links are supported
*/
static boolean supportsSymbolicLinks(Path dir) {
Path link = dir.resolve("testlink");
Path target = dir.resolve("testtarget");
try {
Files.createSymbolicLink(link, target);
Files.delete(link);
return true;
} catch (UnsupportedOperationException x) {
return false;
} catch (IOException x) {
return false;
}
}
/**
* Returns true if hard links are supported
*/
static boolean supportsHardLinks(Path dir) {
Path link = dir.resolve("testlink");
Path target = dir.resolve("testtarget");
try {
Files.createLink(link, target);
Files.delete(link);
return true;
} catch (UnsupportedOperationException x) {
return false;
} catch (IOException x) {
return false;
}
}
}
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