2 * Copyright (c) 2013 Cisco Systems, Inc. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
8 package org.opendaylight.controller.sal.dom.broker.impl;
10 import java.util.Collection;
11 import java.util.Collections;
12 import java.util.HashSet;
14 import java.util.Map.Entry;
17 import org.opendaylight.controller.sal.core.api.BrokerService;
18 import org.opendaylight.controller.sal.core.api.Broker.ConsumerSession;
19 import org.opendaylight.controller.sal.core.api.Broker.ProviderSession;
20 import org.opendaylight.controller.sal.core.api.Consumer.ConsumerFunctionality;
21 import org.opendaylight.controller.sal.core.api.Provider.ProviderFunctionality;
22 import org.opendaylight.controller.sal.core.api.notify.NotificationListener;
23 import org.opendaylight.controller.sal.core.api.notify.NotificationPublishService;
24 import org.opendaylight.controller.sal.core.api.notify.NotificationService;
25 import org.opendaylight.controller.sal.core.spi.BrokerModule;
26 import org.opendaylight.controller.sal.dom.broker.spi.NotificationRouter;
27 import org.opendaylight.yangtools.concepts.AbstractObjectRegistration;
28 import org.opendaylight.yangtools.concepts.Registration;
29 import org.opendaylight.yangtools.yang.common.QName;
30 import org.opendaylight.yangtools.yang.data.api.CompositeNode;
31 import org.slf4j.Logger;
32 import org.slf4j.LoggerFactory;
34 import com.google.common.collect.HashMultimap;
35 import com.google.common.collect.ImmutableSet;
36 import com.google.common.collect.Multimap;
37 import com.google.common.collect.Multimaps;
39 public class NotificationRouterImpl implements NotificationRouter {
40 private static Logger log = LoggerFactory.getLogger(NotificationRouterImpl.class);
42 private Multimap<QName, Registration<NotificationListener>> listeners = Multimaps.synchronizedSetMultimap(HashMultimap.<QName, Registration<NotificationListener>>create());
44 private void sendNotification(CompositeNode notification) {
45 QName type = notification.getNodeType();
46 Collection<Registration<NotificationListener>> toNotify = listeners.get(type);
47 log.trace("Publishing notification " + type);
49 if (toNotify == null) {
50 // No listeners were registered - returns.
54 for (Registration<NotificationListener> listener : toNotify) {
56 // FIXME: ensure that notification is immutable
57 listener.getInstance().onNotification(notification);
58 } catch (Exception e) {
59 log.error("Uncaught exception in NotificationListener", e);
66 public void publish(CompositeNode notification) {
67 sendNotification(notification);
71 public Registration<NotificationListener> addNotificationListener(QName notification, NotificationListener listener) {
72 ListenerRegistration ret = new ListenerRegistration(notification, listener);
76 private class ListenerRegistration extends AbstractObjectRegistration<NotificationListener> {
80 public ListenerRegistration(QName type, NotificationListener instance) {
86 protected void removeRegistration() {
87 listeners.remove(type, this);