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