1 /*
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   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /*
  25  * @test
  26  * @bug 4911721
  27  * @summary test on add/remove NotificationListener
  28  * @author Shanliang JIANG
  29  * @modules java.management
  30  * @run clean DiffHBTest
  31  * @run build DiffHBTest
  32  * @run main DiffHBTest
  33  */
  34 
  35 
  36 import javax.management.*;
  37 import javax.management.remote.*;
  38 
  39 /**
  40  * This test registeres an unique listener with two different handbacks,
  41  * it expects to receive a same notification two times.
  42  */
  43 public class DiffHBTest {
  44     private static final String[] protocols = {"rmi", "iiop", "jmxmp"};
  45 
  46     private static final MBeanServer mbs = MBeanServerFactory.createMBeanServer();
  47     private static ObjectName delegateName;
  48     private static ObjectName timerName;
  49 
  50     public static final String[] hbs = new String[] {"0", "1"};
  51 
  52     public static void main(String[] args) throws Exception {
  53         System.out.println(">>> test on one listener with two different handbacks.");
  54 
  55         delegateName = new ObjectName("JMImplementation:type=MBeanServerDelegate");
  56         timerName = new ObjectName("MBean:name=Timer");
  57 
  58         String errors = "";
  59 
  60         for (int i = 0; i < protocols.length; i++) {
  61             final String s = test(protocols[i]);
  62             if (s != null) {
  63                 if ("".equals(errors)) {
  64                     errors = "Failed to " + protocols[i] + ": "+s;
  65                 } else {
  66                     errors = "\tFailed to " + protocols[i] + ": "+s;
  67                 }
  68             }
  69         }
  70 
  71         if ("".equals(errors)) {
  72             System.out.println(">>> Passed!");
  73         } else {
  74             System.out.println(">>> Failed!");
  75 
  76             throw new RuntimeException(errors);
  77         }
  78     }
  79 
  80     private static String test(String proto) throws Exception {
  81         System.out.println(">>> Test for protocol " + proto);
  82         JMXServiceURL u = new JMXServiceURL(proto, null, 0);
  83         JMXConnectorServer server;
  84         JMXConnector client;
  85 
  86         try {
  87             server =
  88                     JMXConnectorServerFactory.newJMXConnectorServer(u, null, mbs);
  89             server.start();
  90             JMXServiceURL addr = server.getAddress();
  91             client = JMXConnectorFactory.connect(addr, null);
  92         } catch (Exception e) {
  93             // not support
  94             System.out.println(">>> not support: " + proto);
  95             return null;
  96         }
  97 
  98         MBeanServerConnection mserver = client.getMBeanServerConnection();
  99 
 100         System.out.print(">>>\t");
 101         for (int i=0; i<5; i++) {
 102             System.out.print(i + "\t");
 103             final MyListener dummyListener = new MyListener();
 104             mserver.addNotificationListener(
 105                     delegateName, dummyListener, null, hbs[0]);
 106             mserver.addNotificationListener(
 107                     delegateName, dummyListener, null, hbs[1]);
 108 
 109             mserver.createMBean("javax.management.timer.Timer", timerName);
 110 
 111             long remainingTime = waitingTime;
 112             final long startTime = System.currentTimeMillis();
 113 
 114             try {
 115                 synchronized(dummyListener) {
 116                     while (!dummyListener.done && remainingTime > 0) {
 117                         dummyListener.wait(remainingTime);
 118                         remainingTime = waitingTime -
 119                                 (System.currentTimeMillis() - startTime);
 120                     }
 121 
 122                     if (dummyListener.errorInfo != null) {
 123                         return dummyListener.errorInfo;
 124                     }
 125                 }
 126             } finally {
 127                 //System.out.println("Unregister: "+i);
 128                 mserver.unregisterMBean(timerName);
 129                 mserver.removeNotificationListener(delegateName, dummyListener);
 130             }
 131         }
 132 
 133         System.out.println("");
 134         client.close();
 135         server.stop();
 136 
 137         return null;
 138     }
 139 
 140     private static class MyListener implements NotificationListener {
 141         public boolean done = false;
 142         public String errorInfo = null;
 143 
 144         private int received = 0;
 145         private MBeanServerNotification receivedNotif = null;
 146         private Object receivedHB = null;
 147         public void handleNotification(Notification n, Object o) {
 148             if (!(n instanceof MBeanServerNotification)) {
 149                 failed("Received an unexpected notification: "+n);
 150                 return;
 151             }
 152 
 153             if (!hbs[0].equals(o) && !hbs[1].equals(o)) {
 154                 failed("Unkown handback: "+o);
 155                 return;
 156             }
 157 
 158             // what we need
 159             final MBeanServerNotification msn = (MBeanServerNotification)n;
 160             if (!(MBeanServerNotification.REGISTRATION_NOTIFICATION.equals(
 161                     msn.getType())) ||
 162                     !msn.getMBeanName().equals(timerName)) {
 163                 return;
 164             }
 165 
 166             synchronized(this) {
 167                 received++;
 168 
 169                 if (received == 1) { // first time
 170                     receivedNotif = msn;
 171                     receivedHB = o;
 172 
 173                     return;
 174                 }
 175 
 176                 if (received > 2) {
 177                     failed("Expect to receive 2 notifs,  but get "+received);
 178 
 179                     return;
 180                 }
 181 
 182                 // second time
 183                 if (receivedHB.equals(o)) {
 184                     failed("Got same handback twice: "+o);
 185                 } else if(!hbs[0].equals(o) && !hbs[1].equals(o)) {
 186                     failed("Unknown handback: "+o);
 187                 } else if (receivedNotif.getSequenceNumber() !=
 188                         msn.getSequenceNumber()) {
 189                     failed("expected to receive:\n"
 190                             +receivedNotif
 191                             +"\n but got\n"+msn);
 192                 }
 193 
 194                 // passed
 195                 done = true;
 196                 this.notify();
 197             }
 198         }
 199 
 200         private void failed(String errorInfo) {
 201             this.errorInfo = errorInfo;
 202             done = true;
 203 
 204             this.notify();
 205         }
 206     }
 207 
 208     private final static long waitingTime = 2000;
 209 }