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.CheckedFuture;
12 import com.google.common.util.concurrent.FutureCallback;
13 import com.google.common.util.concurrent.Futures;
14 import com.google.common.util.concurrent.MoreExecutors;
15 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
16 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
17 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
18 import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
19 import org.opendaylight.netconf.notifications.NetconfNotificationCollector;
20 import org.opendaylight.netconf.notifications.NotificationRegistration;
21 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.netconf.notification._1._0.rev080714.StreamNameType;
22 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.netmod.notification.rev080714.Netconf;
23 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.netmod.notification.rev080714.netconf.Streams;
24 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.netmod.notification.rev080714.netconf.streams.Stream;
25 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.netmod.notification.rev080714.netconf.streams.StreamKey;
26 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
27 import org.slf4j.Logger;
28 import org.slf4j.LoggerFactory;
31 * Listens on changes in netconf notification stream availability and writes
32 * changes to the data store.
34 public final class NotificationToMdsalWriter implements AutoCloseable, NetconfNotificationCollector
35 .NetconfNotificationStreamListener {
37 private static final Logger LOG = LoggerFactory.getLogger(NotificationToMdsalWriter.class);
39 private final NetconfNotificationCollector netconfNotificationCollector;
40 private final DataBroker dataBroker;
41 private NotificationRegistration notificationRegistration;
43 public NotificationToMdsalWriter(final NetconfNotificationCollector netconfNotificationCollector,
44 final DataBroker dataBroker) {
45 this.netconfNotificationCollector = netconfNotificationCollector;
46 this.dataBroker = dataBroker;
51 final WriteTransaction tx = dataBroker.newWriteOnlyTransaction();
52 tx.delete(LogicalDatastoreType.OPERATIONAL, InstanceIdentifier.create(Netconf.class));
53 final CheckedFuture<Void, TransactionCommitFailedException> submit = tx.submit();
55 Futures.addCallback(submit, new FutureCallback<Void>() {
57 public void onSuccess(Void avoid) {
58 LOG.debug("Streams cleared successfully");
62 public void onFailure(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(Stream stream) {
79 final WriteTransaction tx = dataBroker.newWriteOnlyTransaction();
81 final InstanceIdentifier streamIdentifier = InstanceIdentifier.create(Netconf.class).child(Streams.class)
82 .builder().child(Stream.class, stream.getKey()).build();
83 tx.merge(LogicalDatastoreType.OPERATIONAL, streamIdentifier, stream, true);
86 tx.submit().checkedGet();
87 LOG.debug("Stream %s registered successfully.", stream.getName());
88 } catch (TransactionCommitFailedException e) {
89 LOG.warn("Unable to register stream.", e);
94 public void onStreamUnregistered(StreamNameType stream) {
95 final WriteTransaction tx = dataBroker.newWriteOnlyTransaction();
97 final StreamKey streamKey = new StreamKey(stream);
98 final InstanceIdentifier streamIdentifier = InstanceIdentifier.create(Netconf.class).child(Streams.class)
99 .builder().child(Stream.class, streamKey).build();
101 tx.delete(LogicalDatastoreType.OPERATIONAL, streamIdentifier);
104 tx.submit().checkedGet();
105 LOG.debug("Stream %s unregistered successfully.", stream);
106 } catch (TransactionCommitFailedException e) {
107 LOG.warn("Unable to unregister stream", e);