binding/mdsal-binding-dom-adapter/src/main/java/org/opendaylight/mdsal/binding/dom/adapter/AbstractDOMNotificationListenerAdapter.java

   1 /*
   2  * Copyright (c) 2015 Cisco Systems, Inc. and others.  All rights reserved.
   3  * Copyright (c) 2021 PANTHEON.tech, s.r.o.
   4  *
   5  * This program and the accompanying materials are made available under the
   6  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   7  * and is available at http://www.eclipse.org/legal/epl-v10.html
   8  */
   9 package org.opendaylight.mdsal.binding.dom.adapter;
  10
  11 import static com.google.common.base.Verify.verifyNotNull;
  12 import static java.util.Objects.requireNonNull;
  13
  14 import java.util.Set;
  15 import org.eclipse.jdt.annotation.NonNull;
  16 import org.opendaylight.mdsal.dom.api.DOMEvent;
  17 import org.opendaylight.mdsal.dom.api.DOMNotification;
  18 import org.opendaylight.mdsal.dom.api.DOMNotificationListener;
  19 import org.opendaylight.yangtools.yang.binding.Notification;
  20 import org.opendaylight.yangtools.yang.model.api.stmt.SchemaNodeIdentifier.Absolute;
  21
  22 abstract class AbstractDOMNotificationListenerAdapter implements DOMNotificationListener {
  23     private final AdapterContext adapterContext;
  24
  25     AbstractDOMNotificationListenerAdapter(final AdapterContext adapterContext) {
  26         this.adapterContext = requireNonNull(adapterContext);
  27     }
  28
  29     @Override
  30     public final void onNotification(final DOMNotification notification) {
  31         onNotification(notification.getType(), verifyNotNull(deserialize(notification)));
  32     }
  33
  34     abstract void onNotification(@NonNull Absolute domType, @NonNull Notification<?> notification);
  35
  36     abstract Set<Absolute> getSupportedNotifications();
  37
  38     private Notification<?> deserialize(final DOMNotification notification) {
  39         if (notification instanceof LazySerializedDOMNotification) {
  40             // TODO: This is a routed-back notification, for which we may end up losing event time here, but that is
  41             //       okay, for now at least.
  42             return ((LazySerializedDOMNotification) notification).getBindingData();
  43         }
  44
  45         final CurrentAdapterSerializer serializer = adapterContext.currentSerializer();
  46         return notification instanceof DOMEvent
  47             ? serializer.fromNormalizedNodeNotification(notification.getType(), notification.getBody(),
  48                 ((DOMEvent) notification).getEventInstant())
  49                 : serializer.fromNormalizedNodeNotification(notification.getType(), notification.getBody());
  50     }
  51 }