| /* |
| * Copyright (c) 2003, 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 7654321 |
| * @summary Tests whether a listener receives notifs emitted before the |
| * listener is registered. |
| * @author Shanliang JIANG |
| * |
| * @run clean UnexpectedNotifTest |
| * @run build UnexpectedNotifTest |
| * @run main UnexpectedNotifTest |
| */ |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.Map; |
| import javax.management.MBeanNotificationInfo; |
| import javax.management.MBeanServer; |
| import javax.management.MBeanServerConnection; |
| import javax.management.MBeanServerFactory; |
| import javax.management.Notification; |
| import javax.management.NotificationBroadcasterSupport; |
| import javax.management.NotificationListener; |
| import javax.management.ObjectName; |
| import javax.management.remote.JMXConnector; |
| import javax.management.remote.JMXConnectorFactory; |
| import javax.management.remote.JMXConnectorServer; |
| import javax.management.remote.JMXConnectorServerFactory; |
| import javax.management.remote.JMXServiceURL; |
| // |
| import javax.management.remote.rmi.RMIConnectorServer; |
| |
| public class UnexpectedNotifTest { |
| |
| public static void main(String[] args) throws Exception { |
| List<String> protos = new ArrayList<String>(); |
| protos.add("rmi"); |
| try { |
| Class.forName("javax.management.remote.jmxmp.JMXMPConnectorServer"); |
| protos.add("jmxmp"); |
| } catch (ClassNotFoundException e) { |
| // OK: JMXMP not present so don't test it. |
| } |
| for (String proto : protos) |
| test(proto); |
| } |
| |
| private static void test(String proto) throws Exception { |
| System.out.println("Unexpected notifications test for protocol " + |
| proto); |
| MBeanServer mbs = null; |
| try { |
| // Create a MBeanServer |
| // |
| mbs = MBeanServerFactory.createMBeanServer(); |
| |
| // Create a NotificationEmitter MBean |
| // |
| mbean = new ObjectName ("Default:name=NotificationEmitter"); |
| mbs.registerMBean(new NotificationEmitter(), mbean); |
| |
| // Create a connector server |
| // |
| url = new JMXServiceURL("service:jmx:" + proto + "://"); |
| |
| server = JMXConnectorServerFactory.newJMXConnectorServer(url, |
| null, |
| mbs); |
| |
| mbs.registerMBean( |
| server, |
| new ObjectName("Default:name=ConnectorServer")); |
| |
| server.start(); |
| |
| url = server.getAddress(); |
| |
| for (int j = 0; j < 2; j++) { |
| test(); |
| } |
| } finally { |
| // Stop server |
| // |
| server.stop(); |
| // Release the MBeanServer |
| // |
| MBeanServerFactory.releaseMBeanServer(mbs); |
| } |
| } |
| |
| private static void test() throws Exception { |
| // Create client |
| // |
| JMXConnector connector = JMXConnectorFactory.connect(url); |
| MBeanServerConnection client = connector.getMBeanServerConnection(); |
| |
| // Add listener at the client side |
| // |
| client.addNotificationListener(mbean, listener, null, null); |
| |
| // Cleanup |
| // |
| receivedNotifs = 0; |
| |
| // Ask to send notifs |
| // |
| Object[] params = new Object[] {new Integer(nb)}; |
| String[] signatures = new String[] {"java.lang.Integer"}; |
| |
| client.invoke(mbean, "sendNotifications", params, signatures); |
| |
| // Waiting... |
| // |
| synchronized (lock) { |
| for (int i = 0; i < 10; i++) { |
| if (receivedNotifs < nb) { |
| lock.wait(1000); |
| } |
| } |
| } |
| |
| // Waiting again to ensure no more notifs |
| // |
| Thread.sleep(3000); |
| |
| synchronized (lock) { |
| if (receivedNotifs != nb) { |
| throw new Exception("The client expected to receive " + |
| nb + " notifs, but got " + receivedNotifs); |
| } |
| } |
| |
| // Remove listener |
| // |
| client.removeNotificationListener(mbean, listener); |
| |
| connector.close(); |
| } |
| |
| //-------------------------- |
| // private classes |
| //-------------------------- |
| |
| private static class Listener implements NotificationListener { |
| public void handleNotification(Notification notif, Object handback) { |
| System.out.println("Received: " + notif + " (" + |
| notif.getSequenceNumber() + ")"); |
| synchronized(lock) { |
| if(++receivedNotifs == nb) { |
| lock.notifyAll(); |
| } else if (receivedNotifs > nb) { |
| System.out.println("The client expected to receive " + |
| nb + " notifs, but got at least " + |
| receivedNotifs); |
| System.exit(1); |
| } |
| } |
| } |
| } |
| |
| public static class NotificationEmitter |
| extends NotificationBroadcasterSupport |
| implements NotificationEmitterMBean { |
| |
| /** |
| * Returns a NotificationInfo object containing the name of the Java |
| * class of the notification and the notification types sent by this |
| * notification broadcaster. |
| */ |
| public MBeanNotificationInfo[] getNotificationInfo() { |
| |
| MBeanNotificationInfo[] ntfInfoArray = new MBeanNotificationInfo[1]; |
| |
| String[] ntfTypes = new String[1]; |
| ntfTypes[0] = myType; |
| |
| ntfInfoArray[0] = new MBeanNotificationInfo( |
| ntfTypes, |
| "javax.management.Notification", |
| "Notifications sent by the NotificationEmitter"); |
| return ntfInfoArray; |
| } |
| |
| /** |
| * Send a Notification object with the specified times. |
| * The sequence number will be from zero to times-1. |
| * |
| * @param nb The number of notifications to send |
| */ |
| public void sendNotifications(Integer nb) { |
| System.out.println("NotificationEmitter: asked to send " + |
| "notifications: " + nb); |
| |
| Notification notif; |
| for (int i = 1; i <= nb.intValue(); i++) { |
| notif = new Notification(myType, this, ++seqno); |
| sendNotification(notif); |
| } |
| } |
| |
| private String myType = "notification.my_notification"; |
| } |
| |
| public interface NotificationEmitterMBean { |
| public void sendNotifications(Integer nb); |
| } |
| |
| private static JMXConnectorServer server; |
| private static JMXServiceURL url; |
| private static ObjectName mbean; |
| private static NotificationListener listener = new Listener(); |
| |
| private static int nb = 10; |
| private static int receivedNotifs = 0; |
| private static int[] lock = new int[0]; |
| private static volatile long seqno; |
| } |