001/*
002 * (C) Copyright 2006-2010 Nuxeo SAS (http://nuxeo.com/) and contributors.
003 *
004 * All rights reserved. This program and the accompanying materials
005 * are made available under the terms of the GNU Lesser General Public License
006 * (LGPL) version 2.1 which accompanies this distribution, and is available at
007 * http://www.gnu.org/licenses/lgpl.html
008 *
009 * This library is distributed in the hope that it will be useful,
010 * but WITHOUT ANY WARRANTY; without even the implied warranty of
011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
012 * Lesser General Public License for more details.
013 *
014 * Contributors:
015 *     bstefanescu
016 */
017package org.nuxeo.shell.cmds;
018
019import org.nuxeo.shell.Argument;
020import org.nuxeo.shell.Command;
021import org.nuxeo.shell.CommandRegistry;
022import org.nuxeo.shell.Context;
023import org.nuxeo.shell.Shell;
024
025/**
026 * @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a>
027 */
028@Command(name = "use", help = "Switch the current command namespace. If no namespace is specified the current namepsace name is printed.")
029public class Use implements Runnable {
030
031    @Context
032    protected Shell shell;
033
034    @Argument(name = "name", index = 0, required = false, help = "The command namespace to use")
035    protected String name;
036
037    public void run() {
038        if (name != null) {
039            CommandRegistry old = shell.setActiveRegistry(name);
040            if (old != null) {
041                shell.getConsole().println(old.getName() + " -> " + name);
042            }
043        } else {
044            shell.getConsole().println(shell.getActiveRegistry().getName());
045        }
046    }
047}