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/*
 * RHQ Management Platform
 * Copyright (C) 2005-2008 Red Hat, Inc.
 * All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation version 2 of the License.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
package org.rhq.enterprise.agent.promptcmd;

import java.io.PrintWriter;

import mazz.i18n.Msg;

import org.rhq.enterprise.agent.AgentMain;
import org.rhq.enterprise.agent.AgentShutdownHook;
import org.rhq.enterprise.agent.i18n.AgentI18NFactory;
import org.rhq.enterprise.agent.i18n.AgentI18NResourceKeys;

/**
 * Shuts down the agent and forces the agent process to die.
 *
 * @author John Mazzitelli
 */
public class ExitPromptCommand implements AgentPromptCommand {
    private static final Msg MSG = AgentI18NFactory.getMsg();

    /**
     * @see AgentPromptCommand#getPromptCommandString()
     */
    public String getPromptCommandString() {
        return MSG.getMsg(AgentI18NResourceKeys.EXIT);
    }

    /**
     * @see AgentPromptCommand#execute(AgentMain, String[])
     */
    public boolean execute(AgentMain agent, String[] args) {
        PrintWriter out = agent.getOut();

        if (args.length > 1) {
            out.println(MSG.getMsg(AgentI18NResourceKeys.HELP_SYNTAX_LABEL, getSyntax()));
            return true;
        }

        AgentShutdownHook shutdownHook = new AgentShutdownHook(agent);
        shutdownHook.start();
        return false;
    }

    /**
     * @see AgentPromptCommand#getSyntax()
     */
    public String getSyntax() {
        return getPromptCommandString();
    }

    /**
     * @see AgentPromptCommand#getHelp()
     */
    public String getHelp() {
        return MSG.getMsg(AgentI18NResourceKeys.EXIT_HELP);
    }

    /**
     * @see AgentPromptCommand#getDetailedHelp()
     */
    public String getDetailedHelp() {
        return getHelp();
    }
}