2 * Copyright (c) 2015 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.mdsal.binding.dom.adapter;
10 import static java.util.Objects.requireNonNull;
12 import com.google.common.collect.ImmutableMap;
13 import com.google.common.reflect.TypeToken;
14 import java.lang.reflect.Method;
15 import java.util.HashMap;
16 import java.util.HashSet;
19 import org.eclipse.jdt.annotation.NonNull;
20 import org.opendaylight.mdsal.binding.dom.adapter.invoke.NotificationListenerInvoker;
21 import org.opendaylight.mdsal.binding.spec.reflect.BindingReflections;
22 import org.opendaylight.yangtools.yang.binding.Notification;
23 import org.opendaylight.yangtools.yang.binding.NotificationListener;
24 import org.opendaylight.yangtools.yang.model.api.stmt.SchemaNodeIdentifier.Absolute;
26 final class BindingDOMNotificationListenerAdapter extends AbstractDOMNotificationListenerAdapter {
27 private final ImmutableMap<Absolute, NotificationListenerInvoker> invokers;
28 private final @NonNull NotificationListener delegate;
30 BindingDOMNotificationListenerAdapter(final AdapterContext adapterContext, final NotificationListener delegate) {
31 super(adapterContext);
32 this.delegate = requireNonNull(delegate);
33 invokers = createInvokerMapFor(delegate.getClass());
37 void onNotification(final Absolute domType, final Notification<?> notification) {
38 invokers.get(domType).invokeNotification(delegate, domType.lastNodeIdentifier(), notification);
42 Set<Absolute> getSupportedNotifications() {
43 return invokers.keySet();
46 private static ImmutableMap<Absolute, NotificationListenerInvoker> createInvokerMapFor(
47 final Class<? extends NotificationListener> implClz) {
48 final Map<Absolute, NotificationListenerInvoker> builder = new HashMap<>();
49 for (final TypeToken<?> ifaceToken : TypeToken.of(implClz).getTypes().interfaces()) {
50 Class<?> iface = ifaceToken.getRawType();
51 if (NotificationListener.class.isAssignableFrom(iface) && BindingReflections.isBindingClass(iface)) {
52 @SuppressWarnings("unchecked")
53 final Class<? extends NotificationListener> listenerType
54 = (Class<? extends NotificationListener>) iface;
55 final NotificationListenerInvoker invoker = NotificationListenerInvoker.from(listenerType);
56 for (final Absolute path : getNotificationTypes(listenerType)) {
57 builder.put(path, invoker);
61 return ImmutableMap.copyOf(builder);
64 private static Set<Absolute> getNotificationTypes(final Class<? extends NotificationListener> type) {
65 // TODO: Investigate possibility and performance impact if we cache this or expose
66 // it from NotificationListenerInvoker
67 final Set<Absolute> ret = new HashSet<>();
68 for (final Method method : type.getMethods()) {
69 if (NotificationListenerInvoker.isNotificationCallback(method)) {
70 final Class<?> notification = method.getParameterTypes()[0];
71 ret.add(Absolute.of(BindingReflections.findQName(notification)));