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.util.concurrent.FutureCallback;
12 import com.google.common.util.concurrent.MoreExecutors;
13 import java.util.concurrent.ExecutionException;
14 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
15 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
16 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
17 import org.opendaylight.mdsal.common.api.CommitInfo;
18 import org.opendaylight.netconf.notifications.NetconfNotificationCollector;
19 import org.opendaylight.netconf.notifications.NotificationRegistration;
20 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.netconf.notification._1._0.rev080714.StreamNameType;
21 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.netmod.notification.rev080714.Netconf;
22 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.netmod.notification.rev080714.netconf.Streams;
23 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.netmod.notification.rev080714.netconf.streams.Stream;
24 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.netmod.notification.rev080714.netconf.streams.StreamKey;
25 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
26 import org.slf4j.Logger;
27 import org.slf4j.LoggerFactory;
30 * Listens on changes in netconf notification stream availability and writes
31 * changes to the data store.
33 public final class NotificationToMdsalWriter implements AutoCloseable, NetconfNotificationCollector
34 .NetconfNotificationStreamListener {
36 private static final Logger LOG = LoggerFactory.getLogger(NotificationToMdsalWriter.class);
37 private static final InstanceIdentifier<Streams> STREAMS = InstanceIdentifier.builder(Netconf.class)
38 .child(Streams.class).build();
40 private final NetconfNotificationCollector netconfNotificationCollector;
41 private final DataBroker dataBroker;
42 private NotificationRegistration notificationRegistration;
44 public NotificationToMdsalWriter(final NetconfNotificationCollector netconfNotificationCollector,
45 final DataBroker dataBroker) {
46 this.netconfNotificationCollector = netconfNotificationCollector;
47 this.dataBroker = dataBroker;
52 final WriteTransaction tx = dataBroker.newWriteOnlyTransaction();
53 tx.delete(LogicalDatastoreType.OPERATIONAL, InstanceIdentifier.create(Netconf.class));
55 tx.commit().addCallback(new FutureCallback<CommitInfo>() {
57 public void onSuccess(final CommitInfo info) {
58 LOG.debug("Streams cleared successfully");
62 public void onFailure(final Throwable throwable) {
63 LOG.warn("Unable to clear streams", throwable);
65 }, MoreExecutors.directExecutor());
67 notificationRegistration.close();
71 * Invoked by blueprint.
74 notificationRegistration = netconfNotificationCollector.registerStreamListener(this);
78 public void onStreamRegistered(final Stream stream) {
79 final WriteTransaction tx = dataBroker.newWriteOnlyTransaction();
81 final InstanceIdentifier<Stream> streamIdentifier = STREAMS.child(Stream.class, stream.key());
82 tx.merge(LogicalDatastoreType.OPERATIONAL, streamIdentifier, stream, true);
86 LOG.debug("Stream %s registered successfully.", stream.getName());
87 } catch (InterruptedException | ExecutionException e) {
88 LOG.warn("Unable to register stream.", e);
93 public void onStreamUnregistered(final StreamNameType stream) {
94 final WriteTransaction tx = dataBroker.newWriteOnlyTransaction();
96 final InstanceIdentifier<Stream> streamIdentifier = STREAMS.child(Stream.class, new StreamKey(stream));
98 tx.delete(LogicalDatastoreType.OPERATIONAL, streamIdentifier);
102 LOG.debug("Stream %s unregistered successfully.", stream);
103 } catch (InterruptedException | ExecutionException e) {
104 LOG.warn("Unable to unregister stream", e);