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, AutoCloseable {
  23
  24     public static final Factory<NotificationService> BUILDER_FACTORY = new Factory<NotificationService>() {
  25
  26         @Override
  27         public BindingDOMAdapterBuilder<NotificationService> newBuilder() {
  28             return new Builder();
  29         }
  30
  31     };
  32     private final BindingNormalizedNodeSerializer codec;
  33     private final DOMNotificationService domNotifService;
  34
  35     public BindingDOMNotificationServiceAdapter(final BindingNormalizedNodeSerializer codec,
  36             final DOMNotificationService domNotifService) {
  37         this.codec = codec;
  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(codec, listener);
  45         final ListenerRegistration<BindingDOMNotificationListenerAdapter> domRegistration =
  46                 domNotifService.registerNotificationListener(domListener, domListener.getSupportedNotifications());
  47         return new ListenerRegistrationImpl<>(listener, domRegistration);
  48     }
  49
  50     @Override
  51     public void close() throws Exception {
  52
  53     }
  54
  55     private static class ListenerRegistrationImpl<T extends NotificationListener>
  56             extends AbstractListenerRegistration<T> {
  57         private final ListenerRegistration<?> listenerRegistration;
  58
  59         ListenerRegistrationImpl(final T listener, final ListenerRegistration<?> listenerRegistration) {
  60             super(listener);
  61             this.listenerRegistration = listenerRegistration;
  62         }
  63
  64         @Override
  65         protected void removeRegistration() {
  66             listenerRegistration.close();
  67         }
  68     }
  69
  70     private static class Builder extends BindingDOMAdapterBuilder<NotificationService> {
  71
  72         @Override
  73         protected NotificationService createInstance(final BindingToNormalizedNodeCodec codec,
  74                 final ClassToInstanceMap<DOMService> delegates) {
  75             final DOMNotificationService domNotification = delegates.getInstance(DOMNotificationService.class);
  76             return new BindingDOMNotificationServiceAdapter(codec.getCodecRegistry(), domNotification);
  77         }
  78
  79         @Override
  80         public Set<? extends Class<? extends DOMService>> getRequiredDelegates() {
  81             return ImmutableSet.of(DOMNotificationService.class);
  82         }
  83     }
  84
  85     public DOMNotificationService getDomService() {
  86         return domNotifService;
  87     }
  88 }