binding/mdsal-binding-dom-adapter/src/main/java/org/opendaylight/mdsal/binding/dom/adapter/BindingDOMNotificationServiceAdapter.java

   1 /*
   2  * Copyright (c) 2015 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   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
   7  */
   8 package org.opendaylight.mdsal.binding.dom.adapter;
   9
  10 import static java.util.Objects.requireNonNull;
  11
  12 import com.google.common.annotations.VisibleForTesting;
  13 import com.google.common.collect.ClassToInstanceMap;
  14 import com.google.common.collect.ImmutableSet;
  15 import java.util.HashMap;
  16 import java.util.Set;
  17 import java.util.concurrent.Executor;
  18 import org.opendaylight.mdsal.binding.api.NotificationService;
  19 import org.opendaylight.mdsal.binding.dom.adapter.BindingDOMAdapterBuilder.Factory;
  20 import org.opendaylight.mdsal.dom.api.DOMNotificationListener;
  21 import org.opendaylight.mdsal.dom.api.DOMNotificationService;
  22 import org.opendaylight.mdsal.dom.api.DOMService;
  23 import org.opendaylight.yangtools.concepts.AbstractListenerRegistration;
  24 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  25 import org.opendaylight.yangtools.concepts.Registration;
  26 import org.opendaylight.yangtools.yang.binding.DataObject;
  27 import org.opendaylight.yangtools.yang.binding.Notification;
  28 import org.opendaylight.yangtools.yang.binding.NotificationListener;
  29 import org.opendaylight.yangtools.yang.model.api.stmt.SchemaNodeIdentifier.Absolute;
  30
  31 @VisibleForTesting
  32 // FIXME: 10.0.0: make this class final
  33 public class BindingDOMNotificationServiceAdapter implements NotificationService {
  34     public static final Factory<NotificationService> BUILDER_FACTORY = Builder::new;
  35
  36     private final AdapterContext adapterContext;
  37     private final DOMNotificationService domNotifService;
  38
  39     public BindingDOMNotificationServiceAdapter(final AdapterContext adapterContext,
  40             final DOMNotificationService domNotifService) {
  41         this.adapterContext = requireNonNull(adapterContext);
  42         this.domNotifService = domNotifService;
  43     }
  44
  45     @Override
  46     @Deprecated(since = "10.0.0", forRemoval = true)
  47     public <T extends NotificationListener> ListenerRegistration<T> registerNotificationListener(final T listener) {
  48         final var domListener = new BindingDOMNotificationListenerAdapter(adapterContext, listener);
  49         return new ListenerRegistrationImpl<>(listener,
  50             domNotifService.registerNotificationListener(domListener, domListener.getSupportedNotifications()));
  51     }
  52
  53     @Override
  54     public <N extends Notification<N> & DataObject> Registration registerListener(final Class<N> type,
  55             final Listener<N> listener, final Executor executor) {
  56         final var domListener = new SingleBindingDOMNotificationAdapter<>(adapterContext, type, listener, executor);
  57         return domNotifService.registerNotificationListener(domListener, domListener.getSupportedNotifications());
  58     }
  59
  60     @Override
  61     public Registration registerCompositeListener(final CompositeListener listener, final Executor executor) {
  62         final var exec = requireNonNull(executor);
  63         final var listeners = new HashMap<Absolute, DOMNotificationListener>();
  64         for (var constituent : listener.constituents()) {
  65             final var domListener = new SingleBindingDOMNotificationAdapter<>(adapterContext, constituent, exec);
  66             listeners.put(domListener.getSupportedNotifications().iterator().next(), domListener);
  67         }
  68
  69         return domNotifService.registerNotificationListeners(listeners);
  70     }
  71
  72     @Deprecated(since = "10.0.0", forRemoval = true)
  73     private static final class ListenerRegistrationImpl<T extends NotificationListener>
  74             extends AbstractListenerRegistration<T> {
  75         private final ListenerRegistration<?> listenerRegistration;
  76
  77         ListenerRegistrationImpl(final T listener, final ListenerRegistration<?> listenerRegistration) {
  78             super(listener);
  79             this.listenerRegistration = listenerRegistration;
  80         }
  81
  82         @Override
  83         protected void removeRegistration() {
  84             listenerRegistration.close();
  85         }
  86     }
  87
  88     private static class Builder extends BindingDOMAdapterBuilder<NotificationService> {
  89         Builder(final AdapterContext adapterContext) {
  90             super(adapterContext);
  91         }
  92
  93         @Override
  94         protected NotificationService createInstance(final ClassToInstanceMap<DOMService> delegates) {
  95             final DOMNotificationService domNotification = delegates.getInstance(DOMNotificationService.class);
  96             return new BindingDOMNotificationServiceAdapter(adapterContext(), domNotification);
  97         }
  98
  99         @Override
 100         public Set<? extends Class<? extends DOMService>> getRequiredDelegates() {
 101             return ImmutableSet.of(DOMNotificationService.class);
 102         }
 103     }
 104 }