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.yangtools.binding.data.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 = 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, final DOMNotificationService domNotifService) {
  36         this.codec = codec;
  37         this.domNotifService = domNotifService;
  38     }
  39
  40     @Override
  41     public <T extends NotificationListener> ListenerRegistration<T> registerNotificationListener(final T listener) {
  42         final BindingDOMNotificationListenerAdapter domListener = new BindingDOMNotificationListenerAdapter(codec, listener);
  43         final ListenerRegistration<BindingDOMNotificationListenerAdapter> domRegistration =
  44                 domNotifService.registerNotificationListener(domListener, domListener.getSupportedNotifications());
  45         return new ListenerRegistrationImpl<>(listener, domRegistration);
  46     }
  47
  48     @Override
  49     public void close() throws Exception {
  50
  51     }
  52
  53     private static class ListenerRegistrationImpl<T extends NotificationListener> extends AbstractListenerRegistration<T> {
  54         private final ListenerRegistration<?> listenerRegistration;
  55
  56         public ListenerRegistrationImpl(final T listener, final ListenerRegistration<?> listenerRegistration) {
  57             super(listener);
  58             this.listenerRegistration = listenerRegistration;
  59         }
  60
  61         @Override
  62         protected void removeRegistration() {
  63             listenerRegistration.close();
  64         }
  65     }
  66
  67     private static class Builder extends BindingDOMAdapterBuilder<NotificationService> {
  68
  69         @Override
  70         protected NotificationService createInstance(final BindingToNormalizedNodeCodec codec,
  71                 final ClassToInstanceMap<DOMService> delegates) {
  72             final DOMNotificationService domNotification = delegates.getInstance(DOMNotificationService.class);
  73             return new BindingDOMNotificationServiceAdapter(codec.getCodecRegistry(), domNotification);
  74         }
  75
  76         @Override
  77         public Set<? extends Class<? extends DOMService>> getRequiredDelegates() {
  78             return ImmutableSet.of(DOMNotificationService.class);
  79         }
  80     }
  81 }