| /* |
| * Copyright (c) 2004, 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 |
| * @bug 4757273 |
| * @summary Test that registered notification is sent early enough |
| * @author Eamonn McManus |
| * |
| * @run clean NewMBeanListenerTest |
| * @run build NewMBeanListenerTest |
| * @run main NewMBeanListenerTest |
| */ |
| |
| import javax.management.*; |
| |
| /* Tests that you can write a listener for MBean registrations, that |
| * registers another listener on every newly-registered MBean (that is |
| * a NotificationBroadcaster). Provided the newly-registered MBean |
| * waits until its postRegister is called, no notifications will be lost. |
| */ |
| public class NewMBeanListenerTest { |
| public static void main(String[] args) throws Exception { |
| final MBeanServer mbs = MBeanServerFactory.createMBeanServer(); |
| final ObjectName delegateName = |
| new ObjectName("JMImplementation:type=MBeanServerDelegate"); |
| final CountListener countListener = new CountListener(); |
| final NotificationListener addListener = new NotificationListener() { |
| public void handleNotification(Notification n, Object h) { |
| if (!(n instanceof MBeanServerNotification)) { |
| System.out.println("Ignoring delegate notif: " + |
| n.getClass().getName()); |
| return; |
| } |
| MBeanServerNotification mbsn = (MBeanServerNotification) n; |
| if (!(mbsn.getType() |
| .equals(MBeanServerNotification |
| .REGISTRATION_NOTIFICATION))) { |
| System.out.println("Ignoring MBeanServer notif: " + |
| mbsn.getType()); |
| return; |
| } |
| System.out.println("Got registration notif for " + |
| mbsn.getMBeanName()); |
| try { |
| mbs.addNotificationListener(mbsn.getMBeanName(), |
| countListener, null, null); |
| } catch (Exception e) { |
| System.out.println("TEST INCORRECT: addNL failed:"); |
| e.printStackTrace(System.out); |
| System.exit(1); |
| } |
| System.out.println("Added notif listener for " + |
| mbsn.getMBeanName()); |
| } |
| }; |
| System.out.println("Adding registration listener"); |
| mbs.addNotificationListener(delegateName, addListener, null, null); |
| final ObjectName broadcasterName = new ObjectName(":type=Broadcaster"); |
| System.out.println("Creating Broadcaster MBean"); |
| mbs.createMBean(Broadcaster.class.getName(), broadcasterName); |
| if (countListener.getCount() == 1) |
| System.out.println("Got notif as expected"); |
| else { |
| System.out.println("TEST FAILED: added listener not called"); |
| System.exit(1); |
| } |
| mbs.unregisterMBean(broadcasterName); |
| Broadcaster b = new Broadcaster(); |
| System.out.println("Registering Broadcaster MBean"); |
| mbs.registerMBean(b, broadcasterName); |
| if (countListener.getCount() == 2) |
| System.out.println("Got notif as expected"); |
| else { |
| System.out.println("TEST FAILED: added listener not called"); |
| System.exit(1); |
| } |
| System.out.println("Test passed"); |
| } |
| |
| public static interface BroadcasterMBean {} |
| |
| public static class Broadcaster |
| extends NotificationBroadcasterSupport |
| implements BroadcasterMBean, MBeanRegistration { |
| |
| public ObjectName preRegister(MBeanServer mbs, ObjectName name) { |
| return name; |
| } |
| |
| public void postRegister(Boolean registrationDone) { |
| System.out.println("Broadcaster.postRegister: sending notif"); |
| sendNotification(new Notification("x", this, 0L)); |
| } |
| |
| public void preDeregister() { |
| } |
| |
| public void postDeregister() { |
| } |
| } |
| |
| private static class CountListener implements NotificationListener { |
| private int count; |
| |
| public synchronized void handleNotification(Notification n, Object h) { |
| if (!n.getType().equals("x")) { |
| System.out.println("TEST FAILED: received bogus notif: " + n + |
| " (type=" + n.getType() + ")"); |
| System.exit(1); |
| } |
| count++; |
| } |
| |
| public synchronized int getCount() { |
| return count; |
| } |
| } |
| } |