/* This file is part of the db4o object database http://www.db4o.com
Copyright (C) 2004 - 2011 Versant Corporation http://www.versant.com
db4o is free software; you can redistribute it and/or modify it under
the terms of version 3 of the GNU General Public License as published
by the Free Software Foundation.
db4o 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
for more details.
You should have received a copy of the GNU General Public License along
with this program. If not, see http://www.gnu.org/licenses/. */
package com.db4o.foundation.io;
import java.io.*;
import com.db4o.foundation.*;
/**
* IMPORTANT: Keep the interface of this class compatible with .NET System.IO.Path otherwise
* bad things will happen to you.
*
* @sharpen.ignore
* @sharpen.rename System.IO.Path
*/
public class Path4 {
private static final java.util.Random _random = new java.util.Random();
public static String getDirectoryName(String targetPath) {
return new File(targetPath).getParent();
}
public static String combine(String parent, String child) {
return parent.endsWith(java.io.File.separator)
? parent + child
: parent + java.io.File.separator + child;
}
public static String getTempPath() {
String path = System.getProperty("java.io.tmpdir");
if(path == null || path.length() <= 1){
path = "/temp";
}
File4.mkdirs(path);
return path;
}
public static String getTempFileName() {
String tempPath = getTempPath();
while (true) {
String fname = combine(tempPath, "db4o-test-" + nextRandom() + ".tmp");
if (!File4.exists(fname)) {
try {
new FileWriter(fname).close();
} catch (IOException e) {
throw new RuntimeException(e.getMessage());
}
return fname;
}
}
}
private static String nextRandom() {
return Integer.toHexString(_random.nextInt());
}
}