plugins/netconf-server-mdsal/src/main/java/org/opendaylight/netconf/server/mdsal/notifications/YangLibraryNotificationProducerRFC8525.java

   1 /*
   2  * Copyright (c) 2020 Pantheon Technologies 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.netconf.server.mdsal.notifications;
   9
  10 import org.opendaylight.mdsal.binding.api.DataBroker;
  11 import org.opendaylight.mdsal.binding.api.DataListener;
  12 import org.opendaylight.mdsal.binding.api.DataTreeIdentifier;
  13 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  14 import org.opendaylight.netconf.server.api.notifications.NetconfNotificationCollector;
  15 import org.opendaylight.netconf.server.api.notifications.YangLibraryPublisherRegistration;
  16 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.library.rev190104.YangLibrary;
  17 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.library.rev190104.YangLibraryUpdateBuilder;
  18 import org.opendaylight.yangtools.concepts.Registration;
  19 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  20 import org.osgi.service.component.annotations.Activate;
  21 import org.osgi.service.component.annotations.Component;
  22 import org.osgi.service.component.annotations.Deactivate;
  23 import org.osgi.service.component.annotations.Reference;
  24
  25 /**
  26  * Listens on the modules, submodules, datastores, and datastore schemas changes in data store and publishes to base
  27  * NETCONF notification stream listener a server-specific identifier representing the current set of modules,
  28  * submodules, datastores, and datastore schemas.
  29  */
  30 @Component(service = { })
  31 public final class YangLibraryNotificationProducerRFC8525
  32         implements DataListener<YangLibrary>, AutoCloseable {
  33     private final Registration yangLibraryChangeListenerRegistration;
  34     private final YangLibraryPublisherRegistration yangLibraryPublisherRegistration;
  35
  36     @Activate
  37     public YangLibraryNotificationProducerRFC8525(
  38             @Reference(target = "(type=netconf-notification-manager)") final NetconfNotificationCollector notifManager,
  39             @Reference final DataBroker dataBroker) {
  40         yangLibraryPublisherRegistration = notifManager.registerYangLibraryPublisher();
  41         yangLibraryChangeListenerRegistration = dataBroker.registerDataListener(
  42             DataTreeIdentifier.of(LogicalDatastoreType.OPERATIONAL, InstanceIdentifier.create(YangLibrary.class)),
  43             this);
  44     }
  45
  46     @Deactivate
  47     @Override
  48     public void close() {
  49         if (yangLibraryPublisherRegistration != null) {
  50             yangLibraryPublisherRegistration.close();
  51         }
  52         if (yangLibraryChangeListenerRegistration != null) {
  53             yangLibraryChangeListenerRegistration.close();
  54         }
  55     }
  56
  57     @Override
  58     public void dataChangedTo(final YangLibrary data) {
  59         if (data != null) {
  60             yangLibraryPublisherRegistration.onYangLibraryUpdate(new YangLibraryUpdateBuilder()
  61                 .setContentId(data.getContentId())
  62                 .build());
  63         }
  64     }
  65 }