/*
* TestUtils.java
*
* Created on July 12, 2006, 8:14 PM
*
* @(#)TestUtils.java 1.2 06/08/02
*
* Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* -Redistribution of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* -Redistribution in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of Sun Microsystems, Inc. or the names of contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* This software is provided "AS IS," without a warranty of any kind. ALL
* EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING
* ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
* OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN MICROSYSTEMS, INC. ("SUN")
* AND ITS LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE
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package com.sun.jmx.examples.scandir;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Proxy;
import java.util.logging.Logger;
import javax.management.JMX;
import javax.management.MBeanServerConnection;
import javax.management.MBeanServerInvocationHandler;
import javax.management.NotificationEmitter;
import javax.management.ObjectName;
/**
* A utility class defining static methods used by our tests.
*
* @author Sun Microsystems, 2006 - All rights reserved.
*/
public class TestUtils {
/**
* A logger for this class.
**/
private static final Logger LOG =
Logger.getLogger(TestUtils.class.getName());
/** Creates a new instance of TestUtils */
private TestUtils() {
}
/**
* Returns the ObjectName of the MBean that a proxy object
* is proxying.
**/
public static ObjectName getObjectName(Object proxy) {
if (!(proxy instanceof Proxy))
throw new IllegalArgumentException("not a "+Proxy.class.getName());
final Proxy p = (Proxy) proxy;
final InvocationHandler handler =
Proxy.getInvocationHandler(proxy);
if (handler instanceof MBeanServerInvocationHandler)
return ((MBeanServerInvocationHandler)handler).getObjectName();
throw new IllegalArgumentException("not a JMX Proxy");
}
/**
* Transfroms a proxy implementing T in a proxy implementing T plus
* NotificationEmitter
*
**/
public static <T> T makeNotificationEmitter(T proxy,
Class<T> mbeanInterface) {
if (proxy instanceof NotificationEmitter)
return proxy;
if (proxy == null) return null;
if (!(proxy instanceof Proxy))
throw new IllegalArgumentException("not a "+Proxy.class.getName());
final Proxy p = (Proxy) proxy;
final InvocationHandler handler =
Proxy.getInvocationHandler(proxy);
if (!(handler instanceof MBeanServerInvocationHandler))
throw new IllegalArgumentException("not a JMX Proxy");
final MBeanServerInvocationHandler h =
(MBeanServerInvocationHandler)handler;
final ObjectName name = h.getObjectName();
final MBeanServerConnection mbs = h.getMBeanServerConnection();
final boolean isMXBean = h.isMXBean();
final T newProxy;
if (isMXBean)
newProxy = JMX.newMXBeanProxy(mbs,name,mbeanInterface,true);
else
newProxy = JMX.newMBeanProxy(mbs,name,mbeanInterface,true);
return newProxy;
}
}