/**
* This file is part of CloudML [ http://cloudml.org ]
*
* Copyright (C) 2012 - SINTEF ICT
* Contact: Franck Chauvel <franck.chauvel@sintef.no>
*
* Module: root
*
* CloudML 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 3 of
* the License, or (at your option) any later version.
*
* CloudML 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 CloudML. If not, see
* <http://www.gnu.org/licenses/>.
*/
/*
*/
package org.cloudml.ui.shell.commands;
/**
* The help command which display the help of the shell
*/
public class Help extends ShellCommand {
private final String subject;
public Help(String subject) {
super(VOLATILE);
this.subject = subject;
}
public boolean hasSubject() {
return subject != null;
}
@Override
public void execute(ShellCommandHandler handler) {
handler.help(subject);
}
@Override
public String toString() {
if (hasSubject()) {
return String.format("help \"%s\"", subject);
}
return "help";
}
}