com.twelvemonkeys.io.FileSystem 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;
import java.io.InputStreamReader;
/**
* FileSystem
*
* @author Harald Kuhr
* @version $Id: FileSystem.java#1 $
*/
abstract class FileSystem {
abstract long getFreeSpace(File pPath);
abstract long getTotalSpace(File pPath);
abstract String getName();
static BufferedReader exec(String[] pArgs) throws IOException {
Process cmd = Runtime.getRuntime().exec(pArgs);
return new BufferedReader(new InputStreamReader(cmd.getInputStream()));
}
static FileSystem get() {
String os = System.getProperty("os.name");
//System.out.println("os = " + os);
os = os.toLowerCase();
if (os.contains("windows")) {
return new Win32FileSystem();
}
else if (os.contains("linux") ||
os.contains("sun os") ||
os.contains("sunos") ||
os.contains("solaris") ||
os.contains("mpe/ix") ||
os.contains("hp-ux") ||
os.contains("aix") ||
os.contains("freebsd") ||
os.contains("irix") ||
os.contains("digital unix") ||
os.contains("unix") ||
os.contains("mac os x")) {
return new UnixFileSystem();
}
else {
return new UnknownFileSystem(os);
}
}
private static class UnknownFileSystem extends FileSystem {
private final String osName;
UnknownFileSystem(String pOSName) {
osName = pOSName;
}
long getFreeSpace(File pPath) {
return 0l;
}
long getTotalSpace(File pPath) {
return 0l;
}
String getName() {
return "Unknown (" + osName + ")";
}
}
}