/*
* 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 org.hyperic.sigar.Mem;
import org.hyperic.sigar.Swap;
import org.hyperic.sigar.SigarException;
/**
* Display amount of free and used memory in the system.
*/
public class Free extends SigarCommandBase {
public Free(Shell shell) {
super(shell);
}
public Free() {
super();
}
public String getUsageShort() {
return "Display information about free and used memory";
}
private static Long format(long value) {
return new Long(value / 1024);
}
public void output(String[] args) throws SigarException {
Mem mem = this.sigar.getMem();
Swap swap = this.sigar.getSwap();
Object[] header = new Object[] { "total", "used", "free" };
Object[] memRow = new Object[] {
format(mem.getTotal()),
format(mem.getUsed()),
format(mem.getFree())
};
Object[] actualRow = new Object[] {
format(mem.getActualUsed()),
format(mem.getActualFree())
};
Object[] swapRow = new Object[] {
format(swap.getTotal()),
format(swap.getUsed()),
format(swap.getFree())
};
printf("%18s %10s %10s", header);
printf("Mem: %10ld %10ld %10ld", memRow);
//e.g. linux
if ((mem.getUsed() != mem.getActualUsed()) ||
(mem.getFree() != mem.getActualFree()))
{
printf("-/+ buffers/cache: " + "%10ld %10d", actualRow);
}
printf("Swap: %10ld %10ld %10ld", swapRow);
printf("RAM: %10ls", new Object[] { mem.getRam() + "MB" });
}
public static void main(String[] args) throws Exception {
new Free().processCommand(args);
}
}