/*
* JBoss, Home of Professional Open Source.
* Copyright 2008, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This 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 2.1 of
* the License, or (at your option) any later version.
*
* This software 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 this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.console.twiddle.command;
import gnu.getopt.Getopt;
import gnu.getopt.LongOpt;
import org.jboss.util.Strings;
import java.io.PrintWriter;
/**
* Query the server for a list of matching methods of MBeans.
*
* @author <a href="mailto:torben.jaeger@jit-consulting.de">Torben Jaeger</a>
* @version <tt>$Revision: 81010 $</tt>
*/
public class ListDomainsCommand
extends MBeanServerCommand {
private boolean displayCount;
public ListDomainsCommand() {
super( "listDomains", "Query the server for a list of available domains" );
}
public void displayHelp() {
PrintWriter out = context.getWriter();
out.println( desc );
out.println();
out.println( "usage: " + name + " [options]" );
out.println( "options:" );
out.println( " -c, --count Display the domain count" );
out.println( " -- Stop processing options" );
out.flush();
}
private void processArguments( final String[] args )
throws CommandException {
log.debug( "processing arguments: " + Strings.join( args, "," ) );
String sopts = "-:c";
LongOpt[] lopts =
{
new LongOpt( "count", LongOpt.NO_ARGUMENT, null, 'c' ),
};
Getopt getopt = new Getopt( null, args, sopts, lopts );
getopt.setOpterr( false );
int code;
int argidx = 0;
while ( ( code = getopt.getopt() ) != -1 ) {
switch ( code ) {
case ':':
throw new CommandException
( "Option requires an argument: " + args[getopt.getOptind() - 1] );
case '?':
throw new CommandException
( "Invalid (or ambiguous) option: " + args[getopt.getOptind() - 1] );
// non-option arguments
case 1: {
String arg = getopt.getOptarg();
switch ( argidx++ ) {
default:
throw new CommandException( "Unused argument: " + arg );
}
}
// Show count
case 'c':
displayCount = true;
break;
}
}
}
public void execute( String[] args ) throws Exception {
processArguments( args );
String[] domains = getMBeanServer().getDomains();
PrintWriter out = context.getWriter();
if ( displayCount ) {
out.println( domains.length );
} else {
for ( int i = 0; i < domains.length; i++ ) {
out.println( domains[i] );
}
}
out.flush();
closeServer();
}
}