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/*
* Copyright 2003 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.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, false);
test(proto, true);
}
}
private static void test(String proto, boolean eventService)
throws Exception {
System.out.println("Unexpected notifications test for protocol " +
proto + " with" +
(eventService ? "" : "out") + " event service");
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 + "://");
Map<String, String> env = Collections.singletonMap(
RMIConnectorServer.DELEGATE_TO_EVENT_SERVICE,
Boolean.toString(eventService));
server = JMXConnectorServerFactory.newJMXConnectorServer(url,
env,
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;
}
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