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 com.google.common.collect.ClassToInstanceMap;
  11 import com.google.common.collect.ImmutableSet;
  12 import java.util.Set;
  13 import org.opendaylight.mdsal.binding.api.NotificationService;
  14 import org.opendaylight.mdsal.binding.dom.adapter.BindingDOMAdapterBuilder.Factory;
  15 import org.opendaylight.mdsal.binding.dom.codec.api.BindingNormalizedNodeSerializer;
  16 import org.opendaylight.mdsal.dom.api.DOMNotificationService;
  17 import org.opendaylight.mdsal.dom.api.DOMService;
  18 import org.opendaylight.yangtools.concepts.AbstractListenerRegistration;
  19 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  20 import org.opendaylight.yangtools.yang.binding.NotificationListener;
  21
  22 public class BindingDOMNotificationServiceAdapter implements NotificationService {
  23
  24     public static final Factory<NotificationService> BUILDER_FACTORY = Builder::new;
  25
  26     private final BindingNormalizedNodeSerializer codec;
  27     private final DOMNotificationService domNotifService;
  28
  29     public BindingDOMNotificationServiceAdapter(final BindingNormalizedNodeSerializer codec,
  30             final DOMNotificationService domNotifService) {
  31         this.codec = codec;
  32         this.domNotifService = domNotifService;
  33     }
  34
  35     @Override
  36     public <T extends NotificationListener> ListenerRegistration<T> registerNotificationListener(final T listener) {
  37         final BindingDOMNotificationListenerAdapter domListener
  38                 = new BindingDOMNotificationListenerAdapter(codec, listener);
  39         final ListenerRegistration<BindingDOMNotificationListenerAdapter> domRegistration =
  40                 domNotifService.registerNotificationListener(domListener, domListener.getSupportedNotifications());
  41         return new ListenerRegistrationImpl<>(listener, domRegistration);
  42     }
  43
  44     private static class ListenerRegistrationImpl<T extends NotificationListener>
  45             extends AbstractListenerRegistration<T> {
  46         private final ListenerRegistration<?> listenerRegistration;
  47
  48         ListenerRegistrationImpl(final T listener, final ListenerRegistration<?> listenerRegistration) {
  49             super(listener);
  50             this.listenerRegistration = listenerRegistration;
  51         }
  52
  53         @Override
  54         protected void removeRegistration() {
  55             listenerRegistration.close();
  56         }
  57     }
  58
  59     private static class Builder extends BindingDOMAdapterBuilder<NotificationService> {
  60
  61         @Override
  62         protected NotificationService createInstance(final BindingToNormalizedNodeCodec codec,
  63                 final ClassToInstanceMap<DOMService> delegates) {
  64             final DOMNotificationService domNotification = delegates.getInstance(DOMNotificationService.class);
  65             return new BindingDOMNotificationServiceAdapter(codec.getCodecRegistry(), domNotification);
  66         }
  67
  68         @Override
  69         public Set<? extends Class<? extends DOMService>> getRequiredDelegates() {
  70             return ImmutableSet.of(DOMNotificationService.class);
  71         }
  72     }
  73
  74     public DOMNotificationService getDomService() {
  75         return domNotifService;
  76     }
  77 }