opendaylight/md-sal/sal-binding-broker/src/main/java/org/opendaylight/controller/md/sal/binding/impl/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.controller.md.sal.binding.impl;
   9
  10 import com.google.common.collect.ClassToInstanceMap;
  11 import com.google.common.collect.ImmutableSet;
  12 import java.util.Set;
  13 import org.opendaylight.controller.md.sal.binding.api.NotificationService;
  14 import org.opendaylight.controller.md.sal.binding.impl.BindingDOMAdapterBuilder.Factory;
  15 import org.opendaylight.controller.md.sal.dom.api.DOMNotificationService;
  16 import org.opendaylight.controller.md.sal.dom.api.DOMService;
  17 import org.opendaylight.mdsal.binding.dom.codec.api.BindingNormalizedNodeSerializer;
  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, AutoCloseable {
  23
  24     public static final Factory<NotificationService> BUILDER_FACTORY = Builder::new;
  25     private final BindingNormalizedNodeSerializer codec;
  26     private final DOMNotificationService domNotifService;
  27
  28     public BindingDOMNotificationServiceAdapter(final BindingNormalizedNodeSerializer codec, final DOMNotificationService domNotifService) {
  29         this.codec = codec;
  30         this.domNotifService = domNotifService;
  31     }
  32
  33     @Override
  34     public <T extends NotificationListener> ListenerRegistration<T> registerNotificationListener(final T listener) {
  35         final BindingDOMNotificationListenerAdapter domListener = new BindingDOMNotificationListenerAdapter(codec, listener);
  36         final ListenerRegistration<BindingDOMNotificationListenerAdapter> domRegistration =
  37                 domNotifService.registerNotificationListener(domListener, domListener.getSupportedNotifications());
  38         return new ListenerRegistrationImpl<>(listener, domRegistration);
  39     }
  40
  41     @Override
  42     public void close() throws Exception {
  43
  44     }
  45
  46     private static class ListenerRegistrationImpl<T extends NotificationListener> extends AbstractListenerRegistration<T> {
  47         private final ListenerRegistration<?> listenerRegistration;
  48
  49         public ListenerRegistrationImpl(final T listener, final ListenerRegistration<?> listenerRegistration) {
  50             super(listener);
  51             this.listenerRegistration = listenerRegistration;
  52         }
  53
  54         @Override
  55         protected void removeRegistration() {
  56             listenerRegistration.close();
  57         }
  58     }
  59
  60     private static class Builder extends BindingDOMAdapterBuilder<NotificationService> {
  61
  62         @Override
  63         protected NotificationService createInstance(final BindingToNormalizedNodeCodec codec,
  64                 final ClassToInstanceMap<DOMService> delegates) {
  65             final DOMNotificationService domNotification = delegates.getInstance(DOMNotificationService.class);
  66             return new BindingDOMNotificationServiceAdapter(codec.getCodecRegistry(), domNotification);
  67         }
  68
  69         @Override
  70         public Set<? extends Class<? extends DOMService>> getRequiredDelegates() {
  71             return ImmutableSet.of(DOMNotificationService.class);
  72         }
  73     }
  74
  75     public DOMNotificationService getDomService() {
  76         return domNotifService;
  77     }
  78 }