netconf/mdsal-netconf-notification/src/main/java/org/opendaylight/netconf/mdsal/notification/impl/YangLibraryNotificationProducer.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
   9 package org.opendaylight.netconf.mdsal.notification.impl;
  10
  11 import java.util.Collection;
  12 import org.opendaylight.mdsal.binding.api.DataBroker;
  13 import org.opendaylight.mdsal.binding.api.DataObjectModification;
  14 import org.opendaylight.mdsal.binding.api.DataTreeModification;
  15 import org.opendaylight.netconf.notifications.NetconfNotificationCollector;
  16 import org.opendaylight.netconf.notifications.YangLibraryPublisherRegistration;
  17 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.library.rev190104.ModulesState;
  18 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.library.rev190104.YangLibraryChange;
  19 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.library.rev190104.YangLibraryChangeBuilder;
  20 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  21 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  22
  23 /**
  24  * Listens on the set of modules and submodules changes in data store and publishes
  25  * to base netconf notification stream listener a server-specific identifier representing
  26  * the current set of modules and submodules.
  27  *
  28  * @deprecated ietf-yang-library:yang-library-change was deprecated in the new RFC8525.
  29  *             Use {@link YangLibraryNotificationProducerRFC8525}.
  30  */
  31 @Deprecated(forRemoval = true)
  32 public final class YangLibraryNotificationProducer extends OperationalDatastoreListener<ModulesState>
  33     implements AutoCloseable {
  34
  35     private static final InstanceIdentifier<ModulesState> MODULES_STATE_INSTANCE_IDENTIFIER =
  36             InstanceIdentifier.create(ModulesState.class);
  37
  38     private final ListenerRegistration<?> yangLibraryChangeListenerRegistration;
  39     private final YangLibraryPublisherRegistration yangLibraryPublisherRegistration;
  40
  41     public YangLibraryNotificationProducer(final NetconfNotificationCollector netconfNotificationCollector,
  42                                            final DataBroker dataBroker) {
  43         super(MODULES_STATE_INSTANCE_IDENTIFIER);
  44         this.yangLibraryPublisherRegistration = netconfNotificationCollector.registerYangLibraryPublisher();
  45         this.yangLibraryChangeListenerRegistration = registerOnChanges(dataBroker);
  46     }
  47
  48     @Override
  49     public void onDataTreeChanged(final Collection<DataTreeModification<ModulesState>> changes) {
  50         for (DataTreeModification<ModulesState> change : changes) {
  51             final DataObjectModification<ModulesState> rootNode = change.getRootNode();
  52             final ModulesState dataAfter = rootNode.getDataAfter();
  53             if (dataAfter != null) {
  54                 final YangLibraryChange yangLibraryChange = new YangLibraryChangeBuilder()
  55                         .setModuleSetId(dataAfter.getModuleSetId())
  56                         .build();
  57                 yangLibraryPublisherRegistration.onYangLibraryChange(yangLibraryChange);
  58             }
  59         }
  60     }
  61
  62     /**
  63      * Invoked by blueprint.
  64      */
  65     @Override
  66     public void close() {
  67         if (yangLibraryPublisherRegistration != null) {
  68             yangLibraryPublisherRegistration.close();
  69         }
  70         if (yangLibraryChangeListenerRegistration != null) {
  71             yangLibraryChangeListenerRegistration.close();
  72         }
  73     }
  74 }