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.Set;
  16 import java.util.concurrent.Executor;
  17 import org.opendaylight.mdsal.binding.api.NotificationService;
  18 import org.opendaylight.mdsal.binding.dom.adapter.BindingDOMAdapterBuilder.Factory;
  19 import org.opendaylight.mdsal.dom.api.DOMNotificationService;
  20 import org.opendaylight.mdsal.dom.api.DOMService;
  21 import org.opendaylight.yangtools.concepts.AbstractListenerRegistration;
  22 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  23 import org.opendaylight.yangtools.concepts.Registration;
  24 import org.opendaylight.yangtools.yang.binding.DataObject;
  25 import org.opendaylight.yangtools.yang.binding.Notification;
  26 import org.opendaylight.yangtools.yang.binding.NotificationListener;
  27
  28 @VisibleForTesting
  29 // FIXME: 10.0.0: make this class final
  30 public class BindingDOMNotificationServiceAdapter implements NotificationService {
  31     public static final Factory<NotificationService> BUILDER_FACTORY = Builder::new;
  32
  33     private final AdapterContext adapterContext;
  34     private final DOMNotificationService domNotifService;
  35
  36     public BindingDOMNotificationServiceAdapter(final AdapterContext adapterContext,
  37             final DOMNotificationService domNotifService) {
  38         this.adapterContext = requireNonNull(adapterContext);
  39         this.domNotifService = domNotifService;
  40     }
  41
  42     @Override
  43     public <T extends NotificationListener> ListenerRegistration<T> registerNotificationListener(final T listener) {
  44         final BindingDOMNotificationListenerAdapter domListener
  45                 = new BindingDOMNotificationListenerAdapter(adapterContext, listener);
  46         final ListenerRegistration<BindingDOMNotificationListenerAdapter> domRegistration =
  47                 domNotifService.registerNotificationListener(domListener, domListener.getSupportedNotifications());
  48         return new ListenerRegistrationImpl<>(listener, domRegistration);
  49     }
  50
  51     @Override
  52     public <N extends Notification<N> & DataObject> Registration registerListener(final Class<N> type,
  53             final Listener<N> listener, final Executor executor) {
  54         final var domListener = new SingleBindingDOMNotificationAdapter<>(adapterContext, type, listener, executor);
  55         return domNotifService.registerNotificationListener(domListener, domListener.getSupportedNotifications());
  56     }
  57
  58     public DOMNotificationService getDomService() {
  59         return domNotifService;
  60     }
  61
  62     private static class ListenerRegistrationImpl<T extends NotificationListener>
  63             extends AbstractListenerRegistration<T> {
  64         private final ListenerRegistration<?> listenerRegistration;
  65
  66         ListenerRegistrationImpl(final T listener, final ListenerRegistration<?> listenerRegistration) {
  67             super(listener);
  68             this.listenerRegistration = listenerRegistration;
  69         }
  70
  71         @Override
  72         protected void removeRegistration() {
  73             listenerRegistration.close();
  74         }
  75     }
  76
  77     private static class Builder extends BindingDOMAdapterBuilder<NotificationService> {
  78         Builder(final AdapterContext adapterContext) {
  79             super(adapterContext);
  80         }
  81
  82         @Override
  83         protected NotificationService createInstance(final ClassToInstanceMap<DOMService> delegates) {
  84             final DOMNotificationService domNotification = delegates.getInstance(DOMNotificationService.class);
  85             return new BindingDOMNotificationServiceAdapter(adapterContext(), domNotification);
  86         }
  87
  88         @Override
  89         public Set<? extends Class<? extends DOMService>> getRequiredDelegates() {
  90             return ImmutableSet.of(DOMNotificationService.class);
  91         }
  92     }
  93 }