Package javax.management

Examples of javax.management.NotificationListener.handleNotification()

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      assertEquals(result.getNextSequenceNumber(), 1);
      assertNotNull(result.getTargetedNotifications());
      assertEquals(result.getTargetedNotifications().length, 0);

      // Add another notification
      listener.handleNotification(notification, listenerID);

      // Fetch again
      result = handler.fetchNotifications(result.getNextSequenceNumber(), 10, 100);
      assertEquals(result.getEarliestSequenceNumber(), 0);
      assertEquals(result.getNextSequenceNumber(), 2);
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      // Fill the buffer
      NotificationListener listener = handler.getServerNotificationListener();
      Notification notification = new Notification("dummy", this, 0);
      Integer listenerID = new Integer(1);
      for (int i = 0; i < bufferCapacity; ++i) listener.handleNotification(notification, listenerID);

      // Fetch first time
      NotificationResult result = handler.fetchNotifications(-1, bufferCapacity + 1, 100);
      assertEquals(result.getEarliestSequenceNumber(), 0);
      assertEquals(result.getNextSequenceNumber(), bufferCapacity);
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      assertEquals(result.getNextSequenceNumber(), bufferCapacity);
      assertNotNull(result.getTargetedNotifications());
      assertEquals(result.getTargetedNotifications().length, 0);

      // Add another notification: the buffer is full, the earliest sequence number must change
      listener.handleNotification(notification, listenerID);

      // Fetch again
      result = handler.fetchNotifications(result.getNextSequenceNumber(), bufferCapacity + 1, 100);
      assertEquals(result.getEarliestSequenceNumber(), bufferCapacity);
      assertEquals(result.getNextSequenceNumber(), bufferCapacity + 1);
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      // Add notifications
      NotificationListener listener = handler.getServerNotificationListener();
      Notification notification = new Notification("dummy", this, 0);
      Integer listenerID = new Integer(1);
      int count = distance + 1;
      for (int i = 0; i < count; ++i) listener.handleNotification(notification, listenerID);

      // Fetch again
      result = handler.fetchNotifications(result.getNextSequenceNumber(), count + 1, 100);
      assertEquals(result.getEarliestSequenceNumber(), 0);
      assertEquals(result.getNextSequenceNumber(), count);
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      // Add notifications (will be missed)
      NotificationListener listener = handler.getServerNotificationListener();
      Notification notification = new Notification("dummy", this, 0);
      Integer listenerID = new Integer(1);
      int count = distance + 1;
      for (int i = 0; i < count; ++i) listener.handleNotification(notification, listenerID);

      // First fetch
      NotificationResult result = handler.fetchNotifications(-1, count + 1, 100);

      // Add notifications
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      // First fetch
      NotificationResult result = handler.fetchNotifications(-1, count + 1, 100);

      // Add notifications
      for (int i = 0; i < count; ++i) listener.handleNotification(notification, listenerID);

      // Fetch again: this call triggers purge of old notifications, which changes the earliest sequence number
      result = handler.fetchNotifications(result.getNextSequenceNumber(), count + 1, 100);
      assertEquals(result.getEarliestSequenceNumber(), 0);
      assertEquals(result.getNextSequenceNumber(), count + count);
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      // Add some notifications, but don't fill the buffer
      long count = bufferCapacity - 2;
      NotificationListener listener = handler.getServerNotificationListener();
      Notification notification = new Notification("dummy", this, 0);
      Integer listenerID = new Integer(1);
      for (int i = 0; i < count; ++i) listener.handleNotification(notification, listenerID);

      // Fetch again
      result = handler.fetchNotifications(result.getNextSequenceNumber(), bufferCapacity + 1, 100);
      assertEquals(result.getEarliestSequenceNumber(), 0);
      assertEquals(result.getNextSequenceNumber(), count);
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      // not screw up (IndexOutOfBoundsException)
      int overflow = 7;
      // Note that count == result.getNextSequenceNumber() always yield true at this point (see assertion above),
      // so we actually overflew the buffer by a quantity q == count + overflow (see assertion below).
      long overflowCount = (bufferCapacity - count) + result.getNextSequenceNumber() + overflow;
      for (int i = 0; i < overflowCount; ++i) listener.handleNotification(notification, listenerID);
      result = handler.fetchNotifications(result.getNextSequenceNumber(), bufferCapacity + 1, 100);

      // After algebraic semplification, overflowCount == bufferCapacity + overflow, so
      // the buffer is full, and we fetched all notifications
      assertEquals(count + overflow, result.getEarliestSequenceNumber());
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            }

            NotificationListener l = li.getListener();
            Object h = li.getHandback();
            try {
                l.handleNotification(notif, h);
            } catch (RuntimeException e) {
                final String msg =
                    "Failed to forward a notification " +
                    "to a listener";
                logger.trace("NotifFetcher-run", msg, e);
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                    (NotificationFilter)f.nextElement();

                if ((filter == null) ||
                     (filter.isNotificationEnabled(notification))) {

                    listener.handleNotification(notification,handback) ;
                }
            }
        }
    }
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