/*
* 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 java.io.PrintWriter;
import java.util.Set;
import java.util.Iterator;
import javax.management.ObjectName;
import javax.management.MBeanServerConnection;
import gnu.getopt.Getopt;
import gnu.getopt.LongOpt;
import org.jboss.util.Strings;
/**
* Get information about the server.
*
* @author <a href="mailto:jason@planet57.com">Jason Dillon</a>
* @author Scott.Stark@jboss.org
* @version $Revision: 105008 $
*/
public class ServerInfoCommand
extends MBeanServerCommand
{
public static final int UNKNOWN = 0;
public static final int DEFAULT_DOMAIN = 1;
public static final int MBEAN_COUNT = 2;
public static final int LIST_NAMES = 3;
private int mode = UNKNOWN;
public ServerInfoCommand()
{
super("serverinfo", "Get information about the MBean server");
}
public void displayHelp()
{
PrintWriter out = context.getWriter();
out.println(desc);
out.println();
out.println("usage: " + name + " [options]");
out.println();
out.println("options:");
out.println(" -d, --domain Get the default domain");
out.println(" -c, --count Get the MBean count");
out.println(" -l, --list List the MBeans");
out.println(" -- Stop processing options");
}
private void processArguments(final String[] args)
throws CommandException
{
log.debug("processing arguments: " + Strings.join(args, ","));
if (args.length == 0)
{
throw new CommandException("Command requires arguments");
}
String sopts = "-:dcl";
LongOpt[] lopts =
{
new LongOpt("domain", LongOpt.NO_ARGUMENT, null, 'd'),
new LongOpt("count", LongOpt.NO_ARGUMENT, null, 'c'),
new LongOpt("list", LongOpt.NO_ARGUMENT, null, 'l'),
};
Getopt getopt = new Getopt(null, args, sopts, lopts);
getopt.setOpterr(false);
int code;
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:
throw new CommandException("Unused argument: " + getopt.getOptarg());
case 'd':
mode = DEFAULT_DOMAIN;
break;
case 'c':
mode = MBEAN_COUNT;
break;
case 'l':
mode = LIST_NAMES;
break;
}
}
}
public void execute(String[] args) throws Exception
{
processArguments(args);
PrintWriter out = context.getWriter();
MBeanServerConnection server = getMBeanServer();
// mode should be valid, either invalid arg or no arg
switch (mode)
{
case DEFAULT_DOMAIN:
out.println(server.getDefaultDomain());
break;
case MBEAN_COUNT:
out.println(server.getMBeanCount());
break;
case LIST_NAMES:
ObjectName all = new ObjectName("*:*");
Set names = server.queryNames(all, null);
Iterator iter = names.iterator();
while( iter.hasNext() )
out.println(iter.next());
break;
default:
throw new IllegalStateException("invalid mode: " + mode);
}
out.flush();
closeServer();
}
}