/* * Copyright (c) 2013 Cisco Systems, Inc. and others. All rights reserved. * * This program and the accompanying materials are made available under the * terms of the Eclipse Public License v1.0 which accompanies this distribution, * and is available at http://www.eclipse.org/legal/epl-v10.html */ package org.opendaylight.controller.sal.binding.impl import org.opendaylight.controller.sal.binding.api.NotificationProviderService import org.opendaylight.yangtools.yang.binding.Notification import com.google.common.collect.Multimap import org.opendaylight.controller.sal.binding.api.NotificationListener import com.google.common.collect.HashMultimap import java.util.concurrent.ExecutorService import java.util.Collection import org.opendaylight.yangtools.concepts.Registration import org.opendaylight.controller.sal.binding.codegen.RuntimeCodeGenerator import org.opendaylight.controller.sal.binding.spi.NotificationInvokerFactory import org.opendaylight.yangtools.concepts.ListenerRegistration import org.opendaylight.controller.sal.binding.spi.NotificationInvokerFactory.NotificationInvoker import org.opendaylight.yangtools.concepts.AbstractObjectRegistration import java.util.Collections import org.slf4j.LoggerFactory import java.util.concurrent.Callable class NotificationBrokerImpl implements NotificationProviderService { val Multimap, NotificationListener> listeners; @Property var ExecutorService executor; @Property var RuntimeCodeGenerator generator; @Property var NotificationInvokerFactory invokerFactory; new(ExecutorService executor) { listeners = HashMultimap.create() this.executor = executor; } @Deprecated override addNotificationListener(Class notificationType, NotificationListener listener) { listeners.put(notificationType, listener) } @Deprecated override removeNotificationListener(Class notificationType, NotificationListener listener) { listeners.remove(notificationType, listener) } override notify(Notification notification) { publish(notification) } def getNotificationTypes(Notification notification) { notification.class.interfaces.filter[it != Notification && Notification.isAssignableFrom(it)] } @SuppressWarnings("unchecked") private def notifyAll(Collection> listeners, Notification notification) { listeners.forEach[(it as NotificationListener).onNotification(notification)] } @Deprecated override addNotificationListener(org.opendaylight.yangtools.yang.binding.NotificationListener listener) { throw new UnsupportedOperationException("Deprecated method. Use registerNotificationListener instead."); } @Deprecated override removeNotificationListener(org.opendaylight.yangtools.yang.binding.NotificationListener listener) { throw new UnsupportedOperationException( "Deprecated method. Use RegisterNotificationListener returned value to close registration.") } @Deprecated override notify(Notification notification, ExecutorService service) { publish(notification, service) } override publish(Notification notification) { publish(notification, executor) } override publish(Notification notification, ExecutorService service) { val allTypes = notification.notificationTypes var Iterable> listenerToNotify = Collections.emptySet(); for (type : allTypes) { listenerToNotify = listenerToNotify + listeners.get(type as Class) } val tasks = listenerToNotify.map[new NotifyTask(it, notification)].toSet; executor.invokeAll(tasks); } override registerNotificationListener(Class notificationType, NotificationListener listener) { val reg = new GenericNotificationRegistration(notificationType, listener, this); listeners.put(notificationType, listener); return reg; } override registerNotificationListener( org.opendaylight.yangtools.yang.binding.NotificationListener listener) { val invoker = invokerFactory.invokerFor(listener); for (notifyType : invoker.supportedNotifications) { listeners.put(notifyType, invoker.invocationProxy) } val registration = new GeneratedListenerRegistration(listener, invoker,this); return registration as Registration; } protected def unregisterListener(GenericNotificationRegistration reg) { listeners.remove(reg.type, reg.instance); } protected def unregisterListener(GeneratedListenerRegistration reg) { for (notifyType : reg.invoker.supportedNotifications) { listeners.remove(notifyType, reg.invoker.invocationProxy) } } } class GenericNotificationRegistration extends AbstractObjectRegistration> implements ListenerRegistration> { @Property val Class type; var NotificationBrokerImpl notificationBroker; public new(Class type, NotificationListener instance, NotificationBrokerImpl broker) { super(instance); _type = type; notificationBroker = broker; } override protected removeRegistration() { notificationBroker.unregisterListener(this); notificationBroker = null; } } class GeneratedListenerRegistration extends AbstractObjectRegistration implements ListenerRegistration { @Property val NotificationInvoker invoker; var NotificationBrokerImpl notificationBroker; new(org.opendaylight.yangtools.yang.binding.NotificationListener instance, NotificationInvoker invoker, NotificationBrokerImpl broker) { super(instance); _invoker = invoker; notificationBroker = broker; } override protected removeRegistration() { notificationBroker.unregisterListener(this); notificationBroker = null; invoker.close(); } } @Data class NotifyTask implements Callable { private static val log = LoggerFactory.getLogger(NotifyTask); val NotificationListener listener; val Notification notification; override call() { try { listener.onNotification(notification); } catch (Exception e) { log.error("Unhandled exception thrown by listener: {}", listener, e); } return null; } }