java类javax.management.NotificationListener的实例源码

public BaseNotificationBroadcasterEntry(NotificationListener listener,
                                        NotificationFilter filter,
                                        Object handback) {
    this.listener = listener;
    this.filter = filter;
    this.handback = handback;
}

private void removeNotificationListener(ObjectName name,
                                        NotificationListener listener,
                                        NotificationFilter filter,
                                        Object handback,
                                        boolean removeAll)
        throws InstanceNotFoundException, ListenerNotFoundException {

    if (MBEANSERVER_LOGGER.isLoggable(Level.TRACE)) {
        MBEANSERVER_LOGGER.log(Level.TRACE, "ObjectName = " + name);
    }

    DynamicMBean instance = getMBean(name);
    checkMBeanPermission(instance, null, name, "removeNotificationListener");

    /* We could simplify the code by assigning broadcaster after
       assigning listenerWrapper, but that would change the error
       behavior when both the broadcaster and the listener are
       erroneous.  */

    Class<? extends NotificationBroadcaster> reqClass =
        removeAll ? NotificationBroadcaster.class : NotificationEmitter.class;
    NotificationBroadcaster broadcaster =
        getNotificationBroadcaster(name, instance, reqClass);

    NotificationListener listenerWrapper =
        getListenerWrapper(listener, name, instance, false);

    if (listenerWrapper == null)
        throw new ListenerNotFoundException("Unknown listener");

    if (removeAll)
        broadcaster.removeNotificationListener(listenerWrapper);
    else {
        NotificationEmitter emitter = (NotificationEmitter) broadcaster;
        emitter.removeNotificationListener(listenerWrapper,
                                           filter,
                                           handback);
    }
}

public void addNotificationListener(
        ObjectName name, ObjectName listener,
        NotificationFilter filter, Object handback)
        throws InstanceNotFoundException {
    NotificationListener nl =
            (NotificationListener) getUserMBean(listener);
    addNotificationListener(name, nl, filter, handback);
}

/**
 * Add a notification event listener to this MBean.
 *
 * @param listener Listener that will receive event notifications
 * @param filter Filter object used to filter event notifications
 *  actually delivered, or <code>null</code> for no filtering
 * @param handback Handback object to be sent along with event
 *  notifications
 *
 * @exception IllegalArgumentException if the listener parameter is null
 */
@Override
public void addNotificationListener(NotificationListener listener,
                                    NotificationFilter filter,
                                    Object handback)
    throws IllegalArgumentException {

    if (listener == null)
        throw new IllegalArgumentException("Listener is null");

    if( log.isDebugEnabled() ) log.debug("addNotificationListener " + listener);

    if (generalBroadcaster == null)
        generalBroadcaster = new BaseNotificationBroadcaster();
    generalBroadcaster.addNotificationListener
        (listener, filter, handback);

    // We'll send the attribute change notifications to all listeners ( who care )
    // The normal filtering can be used.
    // The problem is that there is no other way to add attribute change listeners
    // to a model mbean ( AFAIK ). I suppose the spec should be fixed.
    if (attributeBroadcaster == null)
        attributeBroadcaster = new BaseNotificationBroadcaster();

    if( log.isDebugEnabled() )
        log.debug("addAttributeNotificationListener " + listener);

    attributeBroadcaster.addNotificationListener
            (listener, filter, handback);
}

void dispatchNotification(TargetedNotification tn,
                          Integer myListenerID,
                          Map<Integer, ClientListenerInfo> listeners) {
    final Notification notif = tn.getNotification();
    final Integer listenerID = tn.getListenerID();

    if (listenerID.equals(myListenerID)) return;
    final ClientListenerInfo li = listeners.get(listenerID);

    if (li == null) {
        logger.trace("NotifFetcher.dispatch",
                     "Listener ID not in map");
        return;
    }

    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);
    }

}

public synchronized void removeNotificationListener(NotificationListener listener,
                                                    NotificationFilter filter,
                                                    Object handback)
        throws ListenerNotFoundException
{
    boolean before = hasListeners();
    super.removeNotificationListener(listener,filter,handback);
    boolean after = hasListeners();
    if (before && !after) {
        setNotificationEnabled(this,false);
    }
}

/**
 * Call <code>checkRead()</code>, then forward this method to the
 * wrapped object.
 */
public void removeNotificationListener(ObjectName name,
                                       NotificationListener listener,
                                       NotificationFilter filter,
                                       Object handback)
    throws InstanceNotFoundException, ListenerNotFoundException {
    checkRead();
    getMBeanServer().removeNotificationListener(name, listener,
                                                filter, handback);
}

public ClientListenerInfo(Integer listenerID,
                          ObjectName name,
                          NotificationListener listener,
                          NotificationFilter filter,
                          Object handback,
                          Subject delegationSubject) {
    this.listenerID = listenerID;
    this.name = name;
    this.listener = listener;
    this.filter = filter;
    this.handback = handback;
    this.delegationSubject = delegationSubject;
}

@Override
public synchronized void removeNotificationListener(NotificationListener listener,
        NotificationFilter filter,
        Object handback)
        throws ListenerNotFoundException {
    boolean before = hasListeners();
    super.removeNotificationListener(listener, filter, handback);
    boolean after = hasListeners();
    if (before && !after) {
        setNotificationEnabled(false);
    }
}

public void addNotificationListener(
        ObjectName name, NotificationListener listener,
        NotificationFilter filter, Object handback)
        throws InstanceNotFoundException {
    NotificationBroadcaster userMBean =
            (NotificationBroadcaster) getUserMBean(name);
    NotificationListener wrappedListener =
          wrappedListener(name, userMBean, listener);
    userMBean.addNotificationListener(wrappedListener, filter, handback);
}