Java NotificationListener類代碼示例

import javax.management.NotificationListener; //導入依賴的package包/類
public void addNotificationListener(ObjectName name,
        NotificationListener listener,
        NotificationFilter filter,
        Object handback)
        throws InstanceNotFoundException,
        IOException {

    final boolean debug = logger.debugOn();

    if (debug)
        logger.debug("addNotificationListener" +
                "(ObjectName,NotificationListener,"+
                "NotificationFilter,Object)",
                "name=" + name
                + ", listener=" + listener
                + ", filter=" + filter
                + ", handback=" + handback);

    final Integer listenerID =
            addListenerWithSubject(name,
            new MarshalledObject<NotificationFilter>(filter),
            delegationSubject,true);
    rmiNotifClient.addNotificationListener(listenerID, name, listener,
            filter, handback,
            delegationSubject);
}
 

import javax.management.NotificationListener; //導入依賴的package包/類
@Override
public synchronized void removeNotificationListener(ObjectName name,
		NotificationListener listener) throws InstanceNotFoundException,
		ListenerNotFoundException {		
	mbs.removeNotificationListener(name, listener);
	
	// TODO: slow implementation ... but fast one takes a lot of time to do :-)
	Iterator<Listener2> iter = listeners2.iterator();
	while(iter.hasNext()) {
		Listener2 l = iter.next();
		if (SafeEquals.equals(name, l.name) && SafeEquals.equals(listener, l.listener)) {
			listeners.remove(l);
			unregisteredListeners.remove(l);
			iter.remove();
		}
	}
}
 

import javax.management.NotificationListener; //導入依賴的package包/類
/**
 * Removes a listener for Notifications from the RequiredModelMBean.
 *
 * @param listener The listener name which was handling notifications
 *    emitted by the registered MBean.
 *    This method will remove all information related to this listener.
 *
 * @exception ListenerNotFoundException The listener is not registered
 *    in the MBean or is null.
 *
 * @see #addNotificationListener
 **/
public void removeNotificationListener(NotificationListener listener)
    throws ListenerNotFoundException {
    if (listener == null)
        throw new ListenerNotFoundException(
                  "Notification listener is null");

    final String mth="removeNotificationListener(NotificationListener)";
    if (MODELMBEAN_LOGGER.isLoggable(Level.FINER)) {
            MODELMBEAN_LOGGER.logp(Level.FINER,
                RequiredModelMBean.class.getName(), mth, "Entry");
    }

    if (generalBroadcaster == null)
        throw new ListenerNotFoundException(
              "No notification listeners registered");


    generalBroadcaster.removeNotificationListener(listener);
    if (MODELMBEAN_LOGGER.isLoggable(Level.FINER)) {
        MODELMBEAN_LOGGER.logp(Level.FINER,
                RequiredModelMBean.class.getName(), mth, "Exit");
    }

}
 

import javax.management.NotificationListener; //導入依賴的package包/類
public synchronized Integer
    removeNotificationListener(ObjectName name,
                               NotificationListener listener,
                               NotificationFilter filter,
                               Object handback)
        throws ListenerNotFoundException, IOException {

    if (logger.traceOn()) {
        logger.trace("removeNotificationListener",
                     "Remove the listener "+listener+" from "+name);
    }

    beforeRemove();
    Integer liId = getListenerId(name, listener,
            filter, handback);
    infoList.remove(liId);

    return liId;
}
 

import javax.management.NotificationListener; //導入依賴的package包/類
public synchronized void addNotificationListener(Integer listenerID,
                                    ObjectName name,
                                    NotificationListener listener,
                                    NotificationFilter filter,
                                    Object handback,
                                    Subject delegationSubject)
        throws IOException, InstanceNotFoundException {

    if (logger.traceOn()) {
        logger.trace("addNotificationListener",
                     "Add the listener "+listener+" at "+name);
    }

    infoList.put(listenerID,
                 new ClientListenerInfo(listenerID,
                                        name,
                                        listener,
                                        filter,
                                        handback,
                                        delegationSubject));


    init(false);
}
 

import javax.management.NotificationListener; //導入依賴的package包/類
/**
 * Creates a new instance of ScanDirAgent
 * You will need to call {@link #init()} later on in order to initialize
 * the application.
 * @see #main
 **/
public ScanDirAgent() {
    // Initialize the notification queue
    queue = new LinkedBlockingQueue<Notification>();

    // Creates the listener.
    listener = new NotificationListener() {
        public void handleNotification(Notification notification,
                                       Object handback) {
            try {
                // Just put the received notification in the queue.
                // It will be consumed later on by 'waitForClose()'
                //
                LOG.finer("Queuing received notification "+notification);
                queue.put(notification);
            } catch (InterruptedException ex) {
                // OK
            }
        }
    };
}
 

import javax.management.NotificationListener; //導入依賴的package包/類
/**
 * Removes a listener for Notifications from the RequiredModelMBean.
 *
 * @param listener The listener name which was handling notifications
 *    emitted by the registered MBean.
 *    This method will remove all information related to this listener.
 *
 * @exception ListenerNotFoundException The listener is not registered
 *    in the MBean or is null.
 *
 * @see #addNotificationListener
 **/
public void removeNotificationListener(NotificationListener listener)
    throws ListenerNotFoundException {
    if (listener == null)
        throw new ListenerNotFoundException(
                  "Notification listener is null");

    if (MODELMBEAN_LOGGER.isLoggable(Level.TRACE)) {
            MODELMBEAN_LOGGER.log(Level.TRACE, "Entry");
    }

    if (generalBroadcaster == null)
        throw new ListenerNotFoundException(
              "No notification listeners registered");


    generalBroadcaster.removeNotificationListener(listener);
    if (MODELMBEAN_LOGGER.isLoggable(Level.TRACE)) {
        MODELMBEAN_LOGGER.log(Level.TRACE, "Exit");
    }

}
 

import javax.management.NotificationListener; //導入依賴的package包/類
/**
 * Remove a notification event listener from this MBean.
 *
 * @param listener The listener to be removed (any and all registrations
 *  for this listener will be eliminated)
 *
 * @exception ListenerNotFoundException if this listener is not
 *  registered in the MBean
 */
@Override
public void removeNotificationListener(NotificationListener listener)
    throws ListenerNotFoundException {

    synchronized (entries) {
        Iterator<BaseNotificationBroadcasterEntry> items =
            entries.iterator();
        while (items.hasNext()) {
            BaseNotificationBroadcasterEntry item = items.next();
            if (item.listener == listener)
                items.remove();
        }
    }

}
 

import javax.management.NotificationListener; //導入依賴的package包/類
/**
 * Add an attribute change notification event listener to this MBean.
 *
 * @param listener Listener that will receive event notifications
 * @param name Name of the attribute of interest, or <code>null</code>
 *  to indicate interest in all attributes
 * @param handback Handback object to be sent along with event
 *  notifications
 *
 * @exception IllegalArgumentException if the listener parameter is null
 */
@Override
public void addAttributeChangeNotificationListener
    (NotificationListener listener, String name, Object handback)
    throws IllegalArgumentException {

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

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

    BaseAttributeFilter filter = new BaseAttributeFilter(name);
    attributeBroadcaster.addNotificationListener
        (listener, filter, handback);

}
 

import javax.management.NotificationListener; //導入依賴的package包/類
public void removeNotificationListener(ObjectName name,
                                       ObjectName listener,
                                       NotificationFilter filter,
                                       Object handback)
        throws InstanceNotFoundException, ListenerNotFoundException {

    NotificationListener instance = getListener(listener);

    if (MBEANSERVER_LOGGER.isLoggable(Level.FINER)) {
        MBEANSERVER_LOGGER.logp(Level.FINER,
                DefaultMBeanServerInterceptor.class.getName(),
                "removeNotificationListener",
                "ObjectName = " + name + ", Listener = " + listener);
    }
    server.removeNotificationListener(name, instance, filter, handback);
}
 

import javax.management.NotificationListener; //導入依賴的package包/類
/**
 * Return true if the notification was sent successfully, false otherwise.
 * @param type
 * @param message
 * @return true if the notification succeeded
 */
public boolean notify(final String type, String message) {
    try {
        Notification n = new Notification(
                type,
                this,
                sequence.incrementAndGet(),
                System.currentTimeMillis(),
                "["+type+"] "+message);
        sendNotification(n);
        for (NotificationListener listener : listeners) {
            listener.handleNotification(n,this);
        }
        return true;
    }catch (Exception x) {
        if (log.isDebugEnabled()) {
            log.debug("Notify failed. Type="+type+"; Message="+message,x);
        }
        return false;
    }

}
 

import javax.management.NotificationListener; //導入依賴的package包/類
private void addNotificationListener(final ObjectName name,
                                     final NotificationListener listener,
                                     final NotificationFilter filter,
                                     final Object handback)
        throws Exception {
    try {
        AccessController.doPrivileged(new PrivilegedExceptionAction<Void>() {
            public Void run() throws InstanceNotFoundException {
                mBeanServer.addNotificationListener(name,
                                                    listener,
                                                    filter,
                                                    handback);
                return null;
            }
        });
    } catch (Exception e) {
        throw extractException(e);
    }
}
 

import javax.management.NotificationListener; //導入依賴的package包/類
/**
 * Add an attribute change notification event listener to this MBean.
 *
 * @param listener
 *            Listener that will receive event notifications
 * @param name
 *            Name of the attribute of interest, or <code>null</code> to
 *            indicate interest in all attributes
 * @param handback
 *            Handback object to be sent along with event notifications
 *
 * @exception IllegalArgumentException
 *                if the listener parameter is null
 */
@Override
public void addAttributeChangeNotificationListener(NotificationListener listener, String name, Object handback)
		throws IllegalArgumentException {

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

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

	BaseAttributeFilter filter = new BaseAttributeFilter(name);
	attributeBroadcaster.addNotificationListener(listener, filter, handback);

}
 

import javax.management.NotificationListener; //導入依賴的package包/類
public void removeNotificationListener(NotificationListener listener)
    throws ListenerNotFoundException {

    synchronized (listenerLock) {
        List<ListenerInfo> newList = new ArrayList<>(listenerList);
        /* We scan the list of listeners in reverse order because
           in forward order we would have to repeat the loop with
           the same index after a remove.  */
        for (int i=newList.size()-1; i>=0; i--) {
            ListenerInfo li = newList.get(i);

            if (li.listener == listener)
                newList.remove(i);
        }
        if (newList.size() == listenerList.size())
            throw new ListenerNotFoundException("Listener not registered");
        listenerList = newList;
    }
}
 

import javax.management.NotificationListener; //導入依賴的package包/類
private static void listenerOp(MBeanServerConnection mserver, NotificationListener listener, boolean adding)
        throws Exception {
    if (adding) {
        mserver.addNotificationListener(delegateName, listener, null, null);
    } else {
        mserver.removeNotificationListener(delegateName, listener);
    }
}