/** * 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"; } }