restconf/restconf-nb/src/main/java/org/opendaylight/restconf/nb/rfc8040/streams/AbstractNotificationSource.java

   1 /*
   2  * Copyright (c) 2022 PANTHEON.tech, s.r.o. 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.restconf.nb.rfc8040.streams;
   9
  10 import static java.util.Objects.requireNonNull;
  11
  12 import com.google.common.collect.ImmutableMap;
  13 import java.time.Instant;
  14 import org.opendaylight.mdsal.dom.api.DOMEvent;
  15 import org.opendaylight.mdsal.dom.api.DOMNotification;
  16 import org.opendaylight.mdsal.dom.api.DOMNotificationListener;
  17 import org.opendaylight.restconf.nb.rfc8040.streams.RestconfStream.EncodingName;
  18 import org.opendaylight.restconf.nb.rfc8040.streams.RestconfStream.Sink;
  19 import org.opendaylight.restconf.nb.rfc8040.streams.RestconfStream.Source;
  20 import org.opendaylight.yangtools.yang.model.api.EffectiveModelContextProvider;
  21
  22 /**
  23  * Abstract base class for functionality shared between {@link NotificationSource} and
  24  * {@link DeviceNotificationSource}.
  25  */
  26 abstract class AbstractNotificationSource extends Source<DOMNotification> {
  27     static final class Listener implements DOMNotificationListener {
  28         private final Sink<DOMNotification> sink;
  29         private final EffectiveModelContextProvider modelContext;
  30
  31         Listener(final Sink<DOMNotification> sink, final EffectiveModelContextProvider modelContext) {
  32             this.sink = requireNonNull(sink);
  33             this.modelContext = requireNonNull(modelContext);
  34         }
  35
  36         @Override
  37         public void onNotification(final DOMNotification notification) {
  38             sink.publish(modelContext.getEffectiveModelContext(), notification,
  39                 notification instanceof DOMEvent domEvent ? domEvent.getEventInstant() : Instant.now());
  40         }
  41     }
  42
  43     private static final ImmutableMap<EncodingName, NotificationFormatterFactory> ENCODINGS = ImmutableMap.of(
  44         EncodingName.RFC8040_JSON, JSONNotificationFormatter.FACTORY,
  45         EncodingName.RFC8040_XML, XMLNotificationFormatter.FACTORY);
  46
  47     AbstractNotificationSource() {
  48         super(ENCODINGS);
  49     }
  50 }