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