/*
* Copyright ( c ) 2008 , 2011 , 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 2 k 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 supportsLinks(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 ;
}
}
}
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