| /* |
| * Copyright (c) 2006, 2015, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code 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 General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @summary Test that we can create proxies which are NotificationEmitters. |
| * @bug 6411747 |
| * @author Daniel Fuchs |
| * |
| * @run clean NotificationEmitterProxy |
| * @run build NotificationEmitterProxy |
| * @run main NotificationEmitterProxy |
| */ |
| |
| import java.lang.management.ManagementFactory; |
| |
| import javax.management.*; |
| import javax.management.remote.*; |
| import javax.naming.NoPermissionException; |
| |
| public class NotificationEmitterProxy { |
| |
| public static class Counter { |
| int count; |
| public synchronized int count() { |
| count++; |
| notifyAll(); |
| return count; |
| } |
| public synchronized int peek() { |
| return count; |
| } |
| public synchronized int waitfor(int max, long timeout) |
| throws InterruptedException { |
| final long start = System.currentTimeMillis(); |
| while (count < max && timeout > 0) { |
| final long rest = timeout - |
| (System.currentTimeMillis() - start); |
| if (rest <= 0) break; |
| wait(rest); |
| } |
| return count; |
| } |
| } |
| |
| public static class CounterListener |
| implements NotificationListener { |
| final private Counter counter; |
| public CounterListener(Counter counter) { |
| this.counter = counter; |
| } |
| public void handleNotification(Notification notification, |
| Object handback) { |
| System.out.println("Received notif from " + handback + |
| ":\n\t" + notification); |
| counter.count(); |
| } |
| } |
| |
| public static void main(String[] args) throws Exception { |
| System.out.println("<<< Register for notification from a proxy"); |
| |
| MBeanServer mbs = ManagementFactory.getPlatformMBeanServer(); |
| final ObjectName name = new ObjectName(":class=Simple"); |
| |
| JMXServiceURL url = new JMXServiceURL("rmi", null, 0); |
| final JMXConnectorServer server = |
| JMXConnectorServerFactory.newJMXConnectorServer(url, null, mbs); |
| server.start(); |
| url = server.getAddress(); |
| |
| final JMXConnector client = JMXConnectorFactory.connect(url); |
| |
| final Counter counter = new Counter(); |
| final CounterListener listener = new CounterListener(counter); |
| final Counter mxcounter = new Counter(); |
| final CounterListener mxlistener = new CounterListener(mxcounter); |
| final NotificationFilterSupport filter = |
| new NotificationFilterSupport(); |
| filter.enableType(MBeanServerNotification.REGISTRATION_NOTIFICATION); |
| filter.enableType(MBeanServerNotification.UNREGISTRATION_NOTIFICATION); |
| int registered = 0; |
| try { |
| final MBeanServerDelegateMBean delegate = |
| JMX.newMBeanProxy(client.getMBeanServerConnection(), |
| MBeanServerDelegate.DELEGATE_NAME, |
| MBeanServerDelegateMBean.class, |
| true); |
| |
| NotificationEmitter emitter = (NotificationEmitter)delegate; |
| emitter.addNotificationListener(listener,filter,"JMX.newMBeanProxy"); |
| } catch (Exception x) { |
| throw new RuntimeException("Failed to register listener with "+ |
| " JMX.newMBeanProxy: " + x, x); |
| } |
| |
| try { |
| final MBeanServerDelegateMBean delegate = |
| MBeanServerInvocationHandler.newProxyInstance(mbs, |
| MBeanServerDelegate.DELEGATE_NAME, |
| MBeanServerDelegateMBean.class, |
| true); |
| |
| NotificationEmitter emitter = (NotificationEmitter)delegate; |
| emitter.addNotificationListener(listener,filter, |
| "MBeanServerInvocationHandler.newProxyInstance"); |
| } catch (Exception x) { |
| throw new RuntimeException("Failed to register listener with "+ |
| " MBeanServerInvocationHandler.newProxyInstance: " + x, x); |
| } |
| |
| System.out.println("<<< Register an MBean."); |
| |
| final Simple simple = new Simple(); |
| mbs.registerMBean(simple, name); |
| registered++; |
| |
| SimpleMXBean simple0 = |
| JMX.newMXBeanProxy(client.getMBeanServerConnection(), |
| name, |
| SimpleMXBean.class, |
| true); |
| |
| SimpleMXBean simple1 = |
| JMX.newMXBeanProxy(mbs, |
| name, |
| SimpleMXBean.class, |
| false); |
| |
| final int expected = 2*registered; |
| final int reg = counter.waitfor(expected,3000); |
| if (reg != expected) |
| throw new RuntimeException("Bad notification count: " + reg + |
| ", expected " +expected); |
| System.out.println("Received expected "+reg+ |
| " notifs after registerMBean"); |
| |
| ((NotificationEmitter)simple0) |
| .addNotificationListener(mxlistener,null,name); |
| simple1.equals("Are you a Wombat?"); |
| final int mxnotifs = mxcounter.waitfor(1,3000); |
| if (mxnotifs != 1) |
| throw new RuntimeException("Bad MXBean notification count: " + |
| mxnotifs); |
| System.out.println("Received expected "+mxnotifs+ |
| " notifs from MXBean"); |
| |
| mbs.unregisterMBean(name); |
| final int unreg = counter.waitfor(expected+reg,3000); |
| if (unreg != (expected+reg)) |
| throw new RuntimeException("Bad notification count: " + unreg + |
| ", expected " +expected+reg); |
| System.out.println("Received expected "+(unreg-reg)+ |
| " notifs after unregisterMBean"); |
| System.out.println("Total notifs received: " + unreg); |
| |
| |
| } |
| |
| public static interface Simplest { |
| |
| } |
| |
| public static interface SimpleMXBean extends Simplest { |
| public String equals(String x); |
| } |
| |
| private static class Simple extends NotificationBroadcasterSupport |
| implements SimpleMXBean { |
| public static final String NOTIF_TYPE = "simple.equals"; |
| private static long seq=0; |
| private static synchronized long seq() { return ++seq; }; |
| public String equals(String x) { |
| sendNotification(new Notification(NOTIF_TYPE,this,seq(),x)); |
| return x; |
| } |
| |
| } |
| |
| |
| |
| } |