/*
* Copyright (c) 2001 Sun Microsystems, Inc. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Sun Microsystems, Inc. for Project JXTA."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Sun", "Sun Microsystems, Inc.", "JXTA" and "Project JXTA" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact Project JXTA at http://www.jxta.org.
*
* 5. Products derived from this software may not be called "JXTA",
* nor may "JXTA" appear in their name, without prior written
* permission of Sun.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL SUN MICROSYSTEMS OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of Project JXTA. For more
* information on Project JXTA, please see
* <http://www.jxta.org/>.
*
* This license is based on the BSD license adopted by the Apache Foundation.
*
* $Id: history.java,v 1.3 2007/02/09 23:12:43 hamada Exp $
*/
package net.jxta.impl.shell.bin.history;
import net.jxta.impl.shell.ShellApp;
import net.jxta.impl.shell.ShellEnv;
import net.jxta.impl.shell.ShellObject;
public class history extends ShellApp {
/**
* The class that manages the history queues
* private static HistoryQueue queues = new HistoryQueue();
* <p/>
* Used to generate unique names for registered shells
*/
private static int unique = 0;
public history() {
}
@Override
public void stopApp() {
}
public int startApp(String[] args) {
ShellEnv env = getEnv();
ShellObject obj = env.get("History");
HistoryQueue queue;
if (obj != null && HistoryQueue.class.isInstance(obj.getObject())) {
queue = (HistoryQueue) obj.getObject();
println(queue.printHistory());
}
return ShellApp.appNoError;
}
@Override
public void help() {
println("NAME");
println(" history - prints out a list of previous commands");
println(" ");
println("SYNOPSIS");
println(" ");
println(" history");
println(" ");
println("DESCRIPTION");
println(" ");
println(" Lists the commands previously typed.");
println(" Commands can be recalled in two ways:");
println(" Use the up and down arrow keys to navigate");
println(" through the list of commands.");
println(" Use !<number>, where number is the number of");
println(" the command as shown in the list displayed");
println(" by history.");
println(" ");
println("SEE ALSO");
}
}