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/*
* JBoss, Home of Professional Open Source
* Copyright 2005, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt 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 java.lang.reflect.Proxy;
import javax.management.DynamicMBean;
import javax.management.InstanceAlreadyExistsException;
import javax.management.MBeanException;
import javax.management.MBeanRegistrationException;
import javax.management.MBeanServer;
import javax.management.MBeanServerFactory;
import javax.management.NotCompliantMBeanException;
import javax.management.ObjectName;
import javax.management.ReflectionException;
/**
*
* @see java.lang.reflect.Proxy
*
* @author Juha Lindfors.
* @version $Revision: 37459 $
*
*/
public class MBeanProxy
{
// Static --------------------------------------------------------
/**
* Creates a proxy to an MBean in the given MBean server.
*
* @param intrface the interface this proxy implements
* @param name object name of the MBean this proxy connects to
* @param agentID agent ID of the MBean server this proxy connects to
*
* @return proxy instance
*
* @throws MBeanProxyCreationException if the proxy could not be created
*/
public static Object get(Class intrface, ObjectName name, String agentID) throws MBeanProxyCreationException
{
return get(intrface, name, (MBeanServer)MBeanServerFactory.findMBeanServer(agentID).get(0));
}
/**
* Creates a proxy to an MBean in the given MBean server.
*
* @param intrface the interface this proxy implements
* @param name object name of the MBean this proxy connects to
* @param server MBean server this proxy connects to
*
* @return proxy instance
*
* @throws MBeanProxyCreationException if the proxy could not be created
*/
public static Object get(Class intrface, ObjectName name, MBeanServer server) throws MBeanProxyCreationException
{
return get(new Class[] { intrface, ProxyContext.class, DynamicMBean.class }, name, server);
}
/**
*/
public static Object get(ObjectName name, MBeanServer server) throws MBeanProxyCreationException
{
return get(new Class[] { ProxyContext.class, DynamicMBean.class }, name, server);
}
private static Object get(Class[] interfaces, ObjectName name, MBeanServer server) throws MBeanProxyCreationException
{
return Proxy.newProxyInstance(
Thread.currentThread().getContextClassLoader(),
interfaces, new JMXInvocationHandler(server, name)
);
}
/**
* Convenience method for registering an MBean and retrieving a proxy for it.
*
* @param instance MBean instance to be registered
* @param intrface the interface this proxy implements
* @param name object name of the MBean
* @param agentID agent ID of the MBean server this proxy connects to
*
* @return proxy instance
*
* @throws MBeanProxyCreationException if the proxy could not be created
*/
public static Object create(Class instance, Class intrface, ObjectName name, String agentID) throws MBeanProxyCreationException
{
return create(instance, intrface, name, (MBeanServer)MBeanServerFactory.findMBeanServer(agentID).get(0));
}
/**
* Convenience method for registering an MBean and retrieving a proxy for it.
*
* @param instance MBean instance to be registered
* @param intrface the interface this proxy implements
* @param name object name of the MBean
* @param server MBean server this proxy connects to
*
* @throws MBeanProxyCreationException if the proxy could not be created
*/
public static Object create(Class instance, Class intrface, ObjectName name, MBeanServer server) throws MBeanProxyCreationException
{
try
{
server.createMBean(instance.getName(), name);
return get(intrface, name, server);
}
catch (ReflectionException e) {
throw new MBeanProxyCreationException("Creating the MBean failed: " + e.toString());
}
catch (InstanceAlreadyExistsException e) {
throw new MBeanProxyCreationException("Instance already exists: " + name);
}
catch (MBeanRegistrationException e) {
throw new MBeanProxyCreationException("Error registering the MBean to the server: " + e.toString());
}
catch (MBeanException e) {
throw new MBeanProxyCreationException(e.toString());
}
catch (NotCompliantMBeanException e) {
throw new MBeanProxyCreationException("Not a compliant MBean " + instance.getClass().getName() + ": " + e.toString());
}
}
}
