/*
* Copyright (C) [2004, 2005, 2006], Hyperic, Inc.
* This file is part of SIGAR.
*
* SIGAR is free software; you can redistribute it and/or modify
* it under the terms version 2 of the GNU General Public License as
* published by the Free Software Foundation. This program 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA.
*/
package org.hyperic.sigar.cmd;
import java.util.ArrayList;
import org.hyperic.sigar.Sigar;
import org.hyperic.sigar.SigarException;
import org.hyperic.sigar.FileSystem;
import org.hyperic.sigar.FileSystemMap;
import org.hyperic.sigar.FileSystemUsage;
import org.hyperic.sigar.NfsFileSystem;
import org.hyperic.sigar.shell.FileCompleter;
import org.hyperic.sigar.util.GetlineCompleter;
/**
* Report filesytem disk space usage.
*/
public class Df extends SigarCommandBase {
private static final String OUTPUT_FORMAT =
"%-15s %4s %4s %5s %4s %-15s %s";
//like df -h -a
private static final String[] HEADER = new String[] {
"Filesystem",
"Size",
"Used",
"Avail",
"Use%",
"Mounted on",
"Type"
};
private GetlineCompleter completer;
public Df(Shell shell) {
super(shell);
setOutputFormat(OUTPUT_FORMAT);
this.completer = new FileCompleter(shell);
}
public Df() {
super();
setOutputFormat(OUTPUT_FORMAT);
}
public GetlineCompleter getCompleter() {
return this.completer;
}
protected boolean validateArgs(String[] args) {
return args.length <= 1;
}
public String getSyntaxArgs() {
return "[filesystem]";
}
public String getUsageShort() {
return "Report filesystem disk space usage";
}
public void printHeader() {
printf(HEADER);
}
public void output(String[] args) throws SigarException {
if (args.length == 1) {
FileSystemMap mounts = this.proxy.getFileSystemMap();
String name = FileCompleter.expand(args[0]);
FileSystem fs = mounts.getMountPoint(name);
if (fs != null) {
printHeader();
output(fs);
return;
}
throw new SigarException(args[0] +
" No such file or directory");
}
else {
FileSystem[] fslist = this.proxy.getFileSystemList();
printHeader();
for (int i=0; i<fslist.length; i++) {
output(fslist[i]);
}
}
}
public void output(FileSystem fs) throws SigarException {
long used, avail, total, pct;
try {
FileSystemUsage usage;
if (fs instanceof NfsFileSystem) {
NfsFileSystem nfs = (NfsFileSystem)fs;
if (!nfs.ping()) {
println(nfs.getUnreachableMessage());
return;
}
}
usage = this.sigar.getFileSystemUsage(fs.getDirName());
used = usage.getTotal() - usage.getFree();
avail = usage.getAvail();
total = usage.getTotal();
pct = (long)(usage.getUsePercent() * 100);
} catch (SigarException e) {
//e.g. on win32 D:\ fails with "Device not ready"
//if there is no cd in the drive.
used = avail = total = pct = 0;
}
String usePct;
if (pct == 0) {
usePct = "-";
}
else {
usePct = pct + "%";
}
ArrayList items = new ArrayList();
items.add(fs.getDevName());
items.add(formatSize(total));
items.add(formatSize(used));
items.add(formatSize(avail));
items.add(usePct);
items.add(fs.getDirName());
items.add(fs.getSysTypeName() + "/" + fs.getTypeName());
printf(items);
}
private static String formatSize(long size) {
return Sigar.formatSize(size * 1024);
}
public static void main(String[] args) throws Exception {
new Df().processCommand(args);
}
}