com.twelvemonkeys.io.Win32FileSystem Maven / Gradle / Ivy
/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.io;
import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
/**
* WindowsFileSystem
*
* @author Harald Kuhr
* @version $Id: //depot/branches/personal/haraldk/twelvemonkeys/release-2/twelvemonkeys-core/src/main/java/com/twelvemonkeys/io/Win32FileSystem.java#2 $
*/
final class Win32FileSystem extends FileSystem {
public long getFreeSpace(File pPath) {
try {
// Windows version
// TODO: Test on W2K/95/98/etc... (tested on XP)
BufferedReader reader = exec(new String[] {"CMD.EXE", "/C", "DIR", "/-C", pPath.getAbsolutePath()});
String last = null;
String line;
try {
while ((line = reader.readLine()) != null) {
last = line;
}
}
finally {
FileUtil.close(reader);
}
if (last != null) {
int end = last.lastIndexOf(" bytes free");
int start = last.lastIndexOf(' ', end - 1);
if (start >= 0 && end >= 0) {
try {
return Long.parseLong(last.substring(start + 1, end));
}
catch (NumberFormatException ignore) {
// Ignore
}
}
}
}
catch (IOException ignore) {
// Ignore
}
return 0l;
}
long getTotalSpace(File pPath) {
// TODO: Implement, probably need some JNI stuff...
// Distribute df.exe and execute from temp!? ;-)
return getFreeSpace(pPath);
}
String getName() {
return "Win32";
}
}