/*
* 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.mx.util;
import javax.management.MBeanServer;
import javax.management.ObjectName;
import java.lang.reflect.Proxy;
import java.util.ArrayList;
import java.util.List;
/**
* MBeanTyper is a helper class that creates a typed-object from an MBean ObjectName and a main
* interface class that the MBean implements. You can then use the returned object (casted to the appropriate
* main interface class) with the correct typed signatures instead of <tt>mbeanserver.invoke(objectname,<sig>,etc.)</tt>.
* <P>
* Example usage: <BR>
* <code><tt>
* MyInterfaceMBean mbean=(MyInterfaceMBean)MBeanTyper.typeMBean(server,new ObjectName(":type=MyBean"),MyInterfaceMBean.class);
* mbean.foobar();
* </tt></code> <P>
*
* To turn debug on for this package, set the System property <tt>vocalos.jmx.mbeantyper.debug</tt> to true.
*
* @author <a href="mailto:jhaynie@vocalocity.net">Jeff Haynie</a>
*/
public class MBeanTyper
{
static final boolean DEBUG = Boolean.getBoolean("jboss.jmx.debug");
/**
* create a typed object from an mbean
*/
public static final Object typeMBean(MBeanServer server, ObjectName mbean, Class mainInterface)
throws Exception
{
List interfaces = new ArrayList();
if (mainInterface.isInterface())
{
interfaces.add(mainInterface);
}
addInterfaces(mainInterface.getInterfaces(), interfaces);
Class cl[] = (Class[]) interfaces.toArray(new Class[interfaces.size()]);
if (DEBUG)
{
System.err.println("typeMean->server=" + server + ",mbean=" + mbean + ",mainInterface=" + mainInterface);
for (int c = 0; c < cl.length; c++)
{
System.err.println(" :" + cl[c]);
}
}
return Proxy.newProxyInstance(Thread.currentThread().getContextClassLoader(), cl, new MBeanTyperInvoker(server, mbean));
}
private static final void addInterfaces(Class cl[], List list)
{
if (cl == null) return;
for (int c = 0; c < cl.length; c++)
{
list.add(cl[c]);
addInterfaces(cl[c].getInterfaces(), list);
}
}
}