ShellCommand_get.java

/*
 * NOTE: This copyright does *not* cover user programs that use HQ
 * program services by normal system calls through the application
 * program interfaces provided as part of the Hyperic Plug-in Development
 * Kit or the Hyperic Client Development Kit - this is merely considered
 * normal use of the program, and does *not* fall under the heading of
 * "derived work".
 * 
 * Copyright (C) [2004, 2005, 2006], Hyperic, Inc.
 * This file is part of HQ.
 * 
 * HQ is free software; you can redistribute it and/or modify
 * it under the terms version 2 of the GNU General Public License as
 * published by the Free Software Foundation. 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 * USA.
 */

package org.hyperic.util.shell;

import java.io.PrintStream;


public class ShellCommand_get 
    extends ShellCommandBase 
{
    protected void printProperty(String key, String value){
        PrintStream out = this.getOutStream();

        out.print(key + "=");
        if(value.trim() != value)
            out.println("'" + value + "'");
        else
            out.println(value);
    }

    public void processCommand(String[] args)
        throws ShellCommandUsageException, ShellCommandExecException 
    {
        if(args.length < 1){
            throw new ShellCommandUsageException(this.getSyntax());
        }

        for(int i=0; i<args.length; i++){
            String val = System.getProperty(args[i], "UNDEFINED");

            this.printProperty(args[i], val);
        }
    }

    public String getSyntaxArgs(){
        return "<key1> [key2] ...";
    }

    public String getUsageShort(){
        return "Get system properties";
    }

    public String getUsageHelp(String[] args){
        return "    " + this.getUsageShort() + ".";
    }
}