/*
* $Id$
*
* Copyright (C) 2003-2013 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.fs.command;
import java.io.IOException;
import java.util.Iterator;
import org.jnode.driver.ApiNotFoundException;
import org.jnode.driver.Device;
import org.jnode.driver.DeviceUtils;
import org.jnode.driver.RemovableDeviceAPI;
import org.jnode.shell.AbstractCommand;
import org.jnode.shell.syntax.Argument;
import org.jnode.shell.syntax.DeviceArgument;
import org.jnode.shell.syntax.FlagArgument;
/**
* @author Ewout Prangsma (epr@users.sourceforge.net)
* @author Levente S\u00e1ntha
*/
public class EjectCommand extends AbstractCommand {
private static final String help_device = "Device to eject the medium from";
private static final String help_load = "Load the medium into the device";
private static final String fmt_failed = "Eject failed for %s: %s";
private final DeviceArgument argDevice = new DeviceArgument("device", Argument.OPTIONAL | Argument.EXISTING,
help_device, RemovableDeviceAPI.class);
private final FlagArgument argLoad = new FlagArgument("t", Argument.OPTIONAL, help_load);
public EjectCommand() {
super("Eject the medium from a given device");
registerArguments(argLoad, argDevice);
}
public static void main(String[] args) throws Exception {
new EjectCommand().execute(args);
}
public void execute() throws ApiNotFoundException, IOException {
final Device dev;
if (!argDevice.isSet()) {
Iterator<Device> iter = DeviceUtils.getDevicesByAPI(RemovableDeviceAPI.class).iterator();
dev = iter.hasNext() ? iter.next() : null;
} else {
dev = argDevice.getValue();
}
if (dev == null) {
getError().getPrintWriter().println("No removable device found.");
return;
}
final RemovableDeviceAPI api = dev.getAPI(RemovableDeviceAPI.class);
try {
if (!api.canEject()) {
getError().getPrintWriter().format("No device found to %s.",
argLoad.isSet() ? "load" : "eject");
return;
}
if (argLoad.isSet()) {
api.load();
} else {
api.eject();
}
} catch (IOException ex) {
getError().getPrintWriter().format(fmt_failed, dev.getId(), ex.getLocalizedMessage());
exit(1);
}
}
}