Package javax.management

Examples of javax.management.NotificationEmitter

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      throws Exception
   {
      MBeanServer server = MBeanServerFactory.newMBeanServer();
      EmitterInvocationHandlerTest test = new EmitterInvocationHandlerTest();
      server.registerMBean(test, invocationHandlerTestName);
      NotificationEmitter proxy = (NotificationEmitter) MBeanServerInvocationHandler.newProxyInstance(
         server, invocationHandlerTestName, InvocationHandlerTestMBean.class, true);

      NotificationFilterSupport filter = new NotificationFilterSupport();
      filter.enableType("test");
      Object handback = new Object();
      proxy.addNotificationListener(this, filter, handback);

      messages.clear();
      test.sendNotification();
      assertTrue(messages.size() == 1);

      proxy.removeNotificationListener(this, filter, handback);

      messages.clear();
      test.sendNotification();
      assertTrue(messages.size() == 0);
   }
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      throws Exception
   {
      MBeanServer server = MBeanServerFactory.newMBeanServer();
      BroadcasterInvocationHandlerTest test = new BroadcasterInvocationHandlerTest();
      server.registerMBean(test, invocationHandlerTestName);
      NotificationEmitter proxy = (NotificationEmitter) MBeanServerInvocationHandler.newProxyInstance(
         server, invocationHandlerTestName, InvocationHandlerTestMBean.class, true);

      NotificationFilterSupport filter = new NotificationFilterSupport();
      filter.enableType("test");
      Object handback = new Object();
      proxy.addNotificationListener(this, filter, handback);

      messages.clear();
      test.sendNotification();
      assertTrue(messages.size() == 1);

      try
      {
         proxy.removeNotificationListener(this, filter, handback);
         fail("FAILS IN JBOSSMX: removeNotificationListener(NotificationListener, NotificationFilter, Object) " +
              "should not work for a broadcaster");
      }
      catch (Exception ignored)
      {
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      throws Exception
   {
      MBeanServer server = MBeanServerFactory.newMBeanServer();
      EmitterInvocationHandlerTest test = new EmitterInvocationHandlerTest();
      server.registerMBean(test, invocationHandlerTestName);
      NotificationEmitter proxy = (NotificationEmitter) MBeanServerInvocationHandler.newProxyInstance(
         server, invocationHandlerTestName, InvocationHandlerTestMBean.class, true);

      MBeanNotificationInfo[] info = proxy.getNotificationInfo();
      assertEquals("test", info[0].getNotifTypes()[0]);
   }
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     * register it with the Java5 memory management system.
     */
    NotificationMemoryMonitor() {
        super();
        final MemoryMXBean mbean = ManagementFactory.getMemoryMXBean();
        final NotificationEmitter emitter = (NotificationEmitter) mbean;

        // register with the Java5 memory management system.
        emitter.addNotificationListener(new NotificationHandler(), null, null);
    }
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            }
        };
        NotificationFilter filter = null;
        Object handback = null;
        final ScanState before;
        final NotificationEmitter emitter = (NotificationEmitter)
                makeNotificationEmitter(proxy,DirectoryScannerMXBean.class);
        emitter.addNotificationListener(listener, filter, handback);
        before = proxy.getState();
        op.call();
        try {
            final Notification notification =
                    queue.poll(3000,TimeUnit.MILLISECONDS);
            assertEquals(AttributeChangeNotification.ATTRIBUTE_CHANGE,
                    notification.getType());
            assertEquals(AttributeChangeNotification.class,
                    notification.getClass());
            assertEquals(getObjectName(proxy),
                    notification.getSource());
            AttributeChangeNotification acn =
                    (AttributeChangeNotification)notification;
            assertEquals("State",acn.getAttributeName());
            assertEquals(ScanState.class.getName(),acn.getAttributeType());
            assertEquals(before,ScanState.valueOf((String)acn.getOldValue()));
            assertContained(after,ScanState.valueOf((String)acn.getNewValue()));
            emitter.removeNotificationListener(listener,filter,handback);
        } finally {
            try {
                op.cancel();
            } catch (Exception x) {
                System.err.println("Failed to cleanup: "+x);
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            }
        };
        NotificationFilter filter = null;
        Object handback = null;
        final ScanState before;
        final NotificationEmitter emitter = (NotificationEmitter)proxy;
        emitter.addNotificationListener(listener, filter, handback);
        before = proxy.getState();
        op.call();
        try {
            final Notification notification =
                    queue.poll(3000,TimeUnit.MILLISECONDS);
            assertEquals(AttributeChangeNotification.ATTRIBUTE_CHANGE,
                    notification.getType());
            assertEquals(AttributeChangeNotification.class,
                    notification.getClass());
            assertEquals(ScanManager.SCAN_MANAGER_NAME,
                    notification.getSource());
            AttributeChangeNotification acn =
                    (AttributeChangeNotification)notification;
            assertEquals("State",acn.getAttributeName());
            assertEquals(ScanState.class.getName(),acn.getAttributeType());
            assertEquals(before,ScanState.valueOf((String)acn.getOldValue()));
            assertContained(after,ScanState.valueOf((String)acn.getNewValue()));
            emitter.removeNotificationListener(listener,filter,handback);
        } finally {
            try {
                op.cancel();
            } catch (Exception x) {
                System.err.println("Failed to cleanup: "+x);
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  @Override
  public void init(String jid, double treshold, SystemMonitorTask smTask) {
    super.init(jid, treshold, smTask);
    memoryMXBean = ManagementFactory.getMemoryMXBean();
    NotificationEmitter emitter = (NotificationEmitter)memoryMXBean;
    List<MemoryPoolMXBean> memPools = ManagementFactory.getMemoryPoolMXBeans();
    for (MemoryPoolMXBean memoryPoolMXBean : memPools) {
      try {
        emitter.removeNotificationListener(this, null, memoryPoolMXBean);
      } catch (Exception e) {  }
      MemoryUsage memUsage = memoryPoolMXBean.getUsage();
      if (memUsage != null) {
        if (memoryPoolMXBean.isUsageThresholdSupported()) {
          emitter.addNotificationListener(this, null, memoryPoolMXBean);
          long memUsageTreshold =
                  new Double(new Long(memUsage.getMax()).doubleValue() *
                  treshold).longValue();
          memoryPoolMXBean.setUsageThreshold(memUsageTreshold);
          log.config("Setting treshold: " + memUsageTreshold +
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      MBeanServer server = newMBeanServer();
      ObjectName name = new ObjectName("domain:key=value");
      LocalService mbean = new LocalService();
      server.registerMBean(mbean, name);

      NotificationEmitter emitter = (NotificationEmitter)MBeanServerInvocationHandler.newProxyInstance(server, name, LocalServiceMBean.class, true);

      try
      {
         emitter.addNotificationListener(new TestListener(), null, null);
         fail("The MBean is not a NotificationEmitter");
      }
      catch (IllegalArgumentException x)
      {
      }
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      ObjectName name = new ObjectName("domain:key=value");
      LocalBroadcasterService mbean = new LocalBroadcasterService();
      server.registerMBean(mbean, name);

      // The returned interface should be NotificationEmitter, even though the MBean only implements NotificationBroadcaster
      NotificationEmitter proxy = (NotificationEmitter)MBeanServerInvocationHandler.newProxyInstance(server, name, NotificationBroadcaster.class, true);
      assertNotNull(proxy);
   }
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      MBeanServer server = newMBeanServer();
      ObjectName name = new ObjectName("domain:key=value");
      LocalEmitterService mbean = new LocalEmitterService();
      server.registerMBean(mbean, name);

      NotificationEmitter proxy = (NotificationEmitter)MBeanServerInvocationHandler.newProxyInstance(server, name, NotificationEmitter.class, true);
      TestListener listener = new TestListener();
      proxy.addNotificationListener(listener, null, null);
      mbean.test();
      if (!listener.received) fail();
   }
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