2 * Copyright (c) 2015 Cisco Systems, Inc. and others. All rights reserved.
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
9 package org.opendaylight.controller.config.yang.netconf.mdsal.notification;
11 import com.google.common.collect.ImmutableList;
12 import com.google.common.collect.ImmutableSet;
13 import com.google.common.collect.Sets;
14 import java.util.Collection;
15 import java.util.Collections;
17 import javax.annotation.Nonnull;
18 import org.opendaylight.controller.md.sal.binding.api.DataObjectModification;
19 import org.opendaylight.controller.md.sal.binding.api.DataTreeModification;
20 import org.opendaylight.netconf.notifications.BaseNotificationPublisherRegistration;
21 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev100924.Uri;
22 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.netconf.monitoring.rev101004.NetconfState;
23 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.netconf.monitoring.rev101004.netconf.state.Capabilities;
24 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.netconf.notifications.rev120206.NetconfCapabilityChangeBuilder;
25 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.netconf.notifications.rev120206.changed.by.parms.ChangedByBuilder;
26 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.netconf.notifications.rev120206.changed.by.parms.changed.by.server.or.user.ServerBuilder;
27 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
31 * Listens on capabilities changes in data store and publishes them to base
32 * netconf notification stream listener.
34 final class CapabilityChangeNotificationProducer extends OperationalDatastoreListener<Capabilities> {
36 private static final InstanceIdentifier<Capabilities> CAPABILITIES_INSTANCE_IDENTIFIER =
37 InstanceIdentifier.create(NetconfState.class).child(Capabilities.class);
38 private final BaseNotificationPublisherRegistration baseNotificationPublisherRegistration;
40 public CapabilityChangeNotificationProducer(BaseNotificationPublisherRegistration baseNotificationPublisherRegistration) {
41 super(CAPABILITIES_INSTANCE_IDENTIFIER);
42 this.baseNotificationPublisherRegistration = baseNotificationPublisherRegistration;
46 public void onDataTreeChanged(@Nonnull Collection<DataTreeModification<Capabilities>> changes) {
47 for (DataTreeModification<Capabilities> change : changes) {
48 final DataObjectModification<Capabilities> rootNode = change.getRootNode();
49 final DataObjectModification.ModificationType modificationType = rootNode.getModificationType();
50 switch (modificationType) {
52 final Capabilities dataAfter = rootNode.getDataAfter();
53 final Capabilities dataBefore = rootNode.getDataBefore();
54 final Set<Uri> before = dataBefore != null ? ImmutableSet.copyOf(dataBefore.getCapability()) : Collections.emptySet();
55 final Set<Uri> after = dataAfter != null ? ImmutableSet.copyOf(dataAfter.getCapability()) : Collections.emptySet();
56 final Set<Uri> added = Sets.difference(after, before);
57 final Set<Uri> removed = Sets.difference(before, after);
58 publishNotification(added, removed);
62 final Capabilities dataBeforeDelete = rootNode.getDataBefore();
63 if (dataBeforeDelete != null) {
64 final Set<Uri> removed = ImmutableSet.copyOf(dataBeforeDelete.getCapability());
65 publishNotification(Collections.emptySet(), removed);
74 private void publishNotification(Set<Uri> added, Set<Uri> removed) {
75 final NetconfCapabilityChangeBuilder netconfCapabilityChangeBuilder = new NetconfCapabilityChangeBuilder();
76 netconfCapabilityChangeBuilder.setChangedBy(new ChangedByBuilder().setServerOrUser(new ServerBuilder().setServer(true).build()).build());
77 netconfCapabilityChangeBuilder.setAddedCapability(ImmutableList.copyOf(added));
78 netconfCapabilityChangeBuilder.setDeletedCapability(ImmutableList.copyOf(removed));
79 // TODO modified should be computed ... but why ?
80 netconfCapabilityChangeBuilder.setModifiedCapability(Collections.<Uri>emptyList());
81 baseNotificationPublisherRegistration.onCapabilityChanged(netconfCapabilityChangeBuilder.build());