/*
* $Id$
*
* Copyright (C) 2003-2014 JNode.org
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library 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 Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; If not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
package org.jnode.driver.block.ramdisk.command;
import javax.naming.NameNotFoundException;
import org.jnode.driver.DeviceAlreadyRegisteredException;
import org.jnode.driver.DeviceManager;
import org.jnode.driver.DriverException;
import org.jnode.driver.block.ramdisk.RamDiskDevice;
import org.jnode.driver.block.ramdisk.RamDiskDriver;
import org.jnode.naming.InitialNaming;
import org.jnode.shell.AbstractCommand;
import org.jnode.shell.syntax.Argument;
import org.jnode.shell.syntax.FlagArgument;
import org.jnode.shell.syntax.IntegerArgument;
/**
* @author Ewout Prangsma (epr@users.sourceforge.net)
*/
public class RamDiskCommand extends AbstractCommand {
private final FlagArgument FLAG_CREATE = new FlagArgument(
"create", Argument.MANDATORY, "if set, create the ramdisk");
private final IntegerArgument ARG_SIZE = new IntegerArgument(
"size", Argument.OPTIONAL, "the size of the ramdisk");
public RamDiskCommand() {
super("Manage RAM 'disks'");
registerArguments(FLAG_CREATE, ARG_SIZE);
}
public static void main(String[] args) throws Exception {
new RamDiskCommand().execute(args);
}
public void execute()
throws NameNotFoundException, DriverException, DeviceAlreadyRegisteredException {
final DeviceManager dm = InitialNaming.lookup(DeviceManager.NAME);
if (FLAG_CREATE.isSet()) {
// Create
final int size = ARG_SIZE.isSet() ? ARG_SIZE.getValue() : 4 * 4096;
RamDiskDevice dev = new RamDiskDevice(null, "dummy", size);
dev.setDriver(new RamDiskDriver(null));
dm.register(dev);
}
}
}