opendaylight/netconf/netconf-topology/src/main/java/org/opendaylight/netconf/topology/impl/NetconfNodeManagerCallback.java

   1 /*
   2  * Copyright (c) 2015 Cisco Systems, Inc. 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.topology.impl;
  10
  11 import akka.actor.ActorContext;
  12 import akka.actor.ActorRef;
  13 import akka.actor.ActorSystem;
  14 import akka.actor.TypedActor;
  15 import akka.actor.TypedProps;
  16 import akka.cluster.Cluster;
  17 import akka.dispatch.OnComplete;
  18 import com.google.common.base.Function;
  19 import com.google.common.collect.FluentIterable;
  20 import com.google.common.collect.Lists;
  21 import com.google.common.util.concurrent.FutureCallback;
  22 import com.google.common.util.concurrent.Futures;
  23 import com.google.common.util.concurrent.ListenableFuture;
  24 import java.util.ArrayList;
  25 import java.util.Collections;
  26 import java.util.List;
  27 import java.util.Map.Entry;
  28 import java.util.concurrent.TimeUnit;
  29 import javax.annotation.Nonnull;
  30 import javax.annotation.Nullable;
  31 import org.opendaylight.controller.md.sal.dom.api.DOMNotification;
  32 import org.opendaylight.controller.md.sal.dom.api.DOMRpcService;
  33 import org.opendaylight.netconf.api.NetconfMessage;
  34 import org.opendaylight.netconf.api.NetconfTerminationReason;
  35 import org.opendaylight.netconf.client.NetconfClientSession;
  36 import org.opendaylight.netconf.client.NetconfClientSessionListener;
  37 import org.opendaylight.netconf.sal.connect.netconf.listener.NetconfDeviceCapabilities;
  38 import org.opendaylight.netconf.sal.connect.netconf.listener.NetconfSessionPreferences;
  39 import org.opendaylight.netconf.topology.NetconfTopology;
  40 import org.opendaylight.netconf.topology.NodeManager;
  41 import org.opendaylight.netconf.topology.NodeManagerCallback;
  42 import org.opendaylight.netconf.topology.RoleChangeStrategy;
  43 import org.opendaylight.netconf.topology.TopologyManager;
  44 import org.opendaylight.netconf.topology.pipeline.ClusteredNetconfDeviceCommunicator.NetconfClientSessionListenerRegistration;
  45 import org.opendaylight.netconf.topology.pipeline.TopologyMountPointFacade.ConnectionStatusListenerRegistration;
  46 import org.opendaylight.netconf.topology.util.BaseNodeManager;
  47 import org.opendaylight.netconf.topology.util.BaseTopologyManager;
  48 import org.opendaylight.netconf.topology.util.messages.AnnounceMasterMountPoint;
  49 import org.opendaylight.netconf.topology.util.messages.AnnounceMasterMountPointDown;
  50 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.NetconfNode;
  51 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.NetconfNodeBuilder;
  52 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.NetconfNodeConnectionStatus.ConnectionStatus;
  53 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.netconf.node.connection.status.AvailableCapabilitiesBuilder;
  54 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.netconf.node.connection.status.ClusteredConnectionStatusBuilder;
  55 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.netconf.node.connection.status.UnavailableCapabilities;
  56 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.netconf.node.connection.status.UnavailableCapabilitiesBuilder;
  57 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.netconf.node.connection.status.clustered.connection.status.NodeStatus.Status;
  58 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.netconf.node.connection.status.clustered.connection.status.NodeStatusBuilder;
  59 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.netconf.node.connection.status.unavailable.capabilities.UnavailableCapability;
  60 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.netconf.node.connection.status.unavailable.capabilities.UnavailableCapability.FailureReason;
  61 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.netconf.node.connection.status.unavailable.capabilities.UnavailableCapabilityBuilder;
  62 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NodeId;
  63 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  64 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.NodeBuilder;
  65 import org.opendaylight.yangtools.yang.common.QName;
  66 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
  67 import org.slf4j.Logger;
  68 import org.slf4j.LoggerFactory;
  69 import scala.concurrent.Future;
  70 import scala.concurrent.duration.FiniteDuration;
  71
  72 public class NetconfNodeManagerCallback implements NodeManagerCallback, NetconfClientSessionListener{
  73
  74     private static final Logger LOG = LoggerFactory.getLogger(NetconfNodeManagerCallback.class);
  75
  76     public static final Function<Entry<QName, FailureReason>, UnavailableCapability> UNAVAILABLE_CAPABILITY_TRANSFORMER = new Function<Entry<QName, FailureReason>, UnavailableCapability>() {
  77         @Override
  78         public UnavailableCapability apply(final Entry<QName, FailureReason> input) {
  79             return new UnavailableCapabilityBuilder()
  80                     .setCapability(input.getKey().toString())
  81                     .setFailureReason(input.getValue()).build();
  82         }
  83     };
  84     public static final Function<QName, String> AVAILABLE_CAPABILITY_TRANSFORMER = new Function<QName, String>() {
  85         @Override
  86         public String apply(QName qName) {
  87             // intern string representation of a capability to avoid duplicates
  88             return qName.toString().intern();
  89         }
  90     };
  91
  92     private static final String UNKNOWN_REASON = "Unknown reason";
  93
  94     private boolean isMaster = false;
  95     private ClusteredNetconfTopology topologyDispatcher;
  96     private final ActorSystem actorSystem;
  97     private final Cluster clusterExtension;
  98
  99     private final RoleChangeStrategy roleChangeStrategy;
 100
 101     private String nodeId;
 102     private String topologyId;
 103     private TopologyManager topologyManager;
 104     private NodeManager nodeManager;
 105     // cached context so that we can use it in callbacks from topology
 106     private ActorContext cachedContext;
 107
 108     private Node currentConfig;
 109     private Node currentOperationalNode;
 110
 111     private ConnectionStatusListenerRegistration connectionStatusregistration = null;
 112     private NetconfClientSessionListenerRegistration sessionListener = null;
 113
 114     private ActorRef masterDataBrokerRef = null;
 115     private boolean connected = false;
 116
 117     public NetconfNodeManagerCallback(final String nodeId,
 118                                       final String topologyId,
 119                                       final ActorSystem actorSystem,
 120                                       final NetconfTopology topologyDispatcher,
 121                                       final RoleChangeStrategy roleChangeStrategy) {
 122         this.nodeId = nodeId;
 123         this.topologyId = topologyId;
 124         this.actorSystem = actorSystem;
 125         this.clusterExtension = Cluster.get(actorSystem);
 126         this.topologyDispatcher = (ClusteredNetconfTopology) topologyDispatcher;
 127         this.roleChangeStrategy = roleChangeStrategy;
 128
 129         final Future<ActorRef> topologyRefFuture = actorSystem.actorSelection("/user/" + topologyId).resolveOne(FiniteDuration.create(10L, TimeUnit.SECONDS));
 130         topologyRefFuture.onComplete(new OnComplete<ActorRef>() {
 131             @Override
 132             public void onComplete(Throwable throwable, ActorRef actorRef) throws Throwable {
 133                 if (throwable != null) {
 134                     LOG.warn("Unable to resolve actor for path: {} ", "/user/" + topologyId, throwable);
 135
 136                 }
 137
 138                 LOG.debug("Actor ref for path {} resolved", "/user/" + topologyId);
 139                 topologyManager = TypedActor.get(actorSystem).typedActorOf(new TypedProps<>(TopologyManager.class, BaseTopologyManager.class), actorRef);
 140             }
 141         }, actorSystem.dispatcher());
 142
 143         final Future<ActorRef> nodeRefFuture = actorSystem.actorSelection("/user/" + topologyId + "/" + nodeId).resolveOne(FiniteDuration.create(10L, TimeUnit.SECONDS));
 144         nodeRefFuture.onComplete(new OnComplete<ActorRef>() {
 145             @Override
 146             public void onComplete(Throwable throwable, ActorRef actorRef) throws Throwable {
 147                 if (throwable != null) {
 148                     LOG.warn("Unable to resolve actor for path: {} ", "/user/" + topologyId + "/" + nodeId, throwable);
 149                 }
 150                 LOG.debug("Actor ref for path {} resolved", "/user/" + topologyId);
 151                 nodeManager = TypedActor.get(actorSystem).typedActorOf(new TypedProps<>(NodeManager.class, BaseNodeManager.class), actorRef);
 152             }
 153         }, actorSystem.dispatcher());
 154     }
 155
 156
 157     @Nonnull
 158     @Override public Node getInitialState(@Nonnull final NodeId nodeId,
 159                                           @Nonnull final Node configNode) {
 160         final NetconfNode netconfNode = configNode.getAugmentation(NetconfNode.class);
 161
 162         final Node initialNode = new NodeBuilder()
 163                 .setNodeId(nodeId)
 164                 .addAugmentation(NetconfNode.class,
 165                         new NetconfNodeBuilder()
 166                                 .setHost(netconfNode.getHost())
 167                                 .setPort(netconfNode.getPort())
 168                                 .setConnectionStatus(ConnectionStatus.Connecting)
 169                                 .setClusteredConnectionStatus(
 170                                         new ClusteredConnectionStatusBuilder()
 171                                                 .setNodeStatus(
 172                                                         Lists.newArrayList(
 173                                                                 new NodeStatusBuilder()
 174                                                                         .setNode(clusterExtension.selfAddress().toString())
 175                                                                         .setStatus(Status.Unavailable)
 176                                                                         .build()))
 177                                                 .build())
 178                                 .build())
 179                 .build();
 180
 181         if (currentOperationalNode == null) {
 182             currentOperationalNode = initialNode;
 183         }
 184
 185         return initialNode;
 186     }
 187
 188     @Nonnull @Override public Node getFailedState(@Nonnull final NodeId nodeId,
 189                                                   @Nullable final Node configNode) {
 190         final NetconfNode netconfNode = configNode == null ? currentOperationalNode.getAugmentation(NetconfNode.class) : configNode.getAugmentation(NetconfNode.class);
 191
 192         final Node failedNode = new NodeBuilder()
 193                 .setNodeId(nodeId)
 194                 .addAugmentation(NetconfNode.class,
 195                         new NetconfNodeBuilder()
 196                                 .setHost(netconfNode.getHost())
 197                                 .setPort(netconfNode.getPort())
 198                                 .setConnectionStatus(ConnectionStatus.UnableToConnect)
 199                                 .setClusteredConnectionStatus(
 200                                         new ClusteredConnectionStatusBuilder()
 201                                                 .setNodeStatus(
 202                                                         Collections.singletonList(
 203                                                                 new NodeStatusBuilder()
 204                                                                         .setNode(clusterExtension.selfAddress().toString())
 205                                                                         .setStatus(Status.Failed)
 206                                                                         .build()))
 207                                                 .build())
 208                                 .build())
 209                 .build();
 210
 211         if (currentOperationalNode == null) {
 212             currentOperationalNode = failedNode;
 213         }
 214
 215         return failedNode;
 216     }
 217
 218     @Nonnull @Override public ListenableFuture<Node> onNodeCreated(@Nonnull final NodeId nodeId,
 219                                                                    @Nonnull final Node configNode) {
 220         cachedContext = TypedActor.context();
 221         this.nodeId = nodeId.getValue();
 222         this.currentConfig = configNode;
 223         // set initial state before anything happens
 224         this.currentOperationalNode = getInitialState(nodeId, configNode);
 225
 226         // connect magic, send config into the netconf pipeline through topo dispatcher
 227         final ListenableFuture<NetconfDeviceCapabilities> connectionFuture = topologyDispatcher.connectNode(nodeId, configNode);
 228
 229         Futures.addCallback(connectionFuture, new FutureCallback<NetconfDeviceCapabilities>() {
 230             @Override
 231             public void onSuccess(@Nullable NetconfDeviceCapabilities result) {
 232                 connectionStatusregistration = topologyDispatcher.registerConnectionStatusListener(nodeId, nodeManager);
 233                 sessionListener = topologyDispatcher.registerNetconfClientSessionListener(nodeId, NetconfNodeManagerCallback.this);
 234             }
 235
 236             @Override
 237             public void onFailure(Throwable t) {
 238                 LOG.error("Connection to device failed", t);
 239             }
 240         });
 241
 242         final NetconfNode netconfNode = configNode.getAugmentation(NetconfNode.class);
 243
 244         // transform future result into state that gets written into datastore
 245         return Futures.transform(connectionFuture, new Function<NetconfDeviceCapabilities, Node>() {
 246             @Nullable
 247             @Override
 248             public Node apply(NetconfDeviceCapabilities input) {
 249                 // build state data
 250                 currentOperationalNode = new NodeBuilder().setNodeId(nodeId)
 251                         .addAugmentation(NetconfNode.class,
 252                                 new NetconfNodeBuilder()
 253                                         .setConnectionStatus(ConnectionStatus.Connected)
 254                                         .setClusteredConnectionStatus(
 255                                                 new ClusteredConnectionStatusBuilder()
 256                                                         .setNodeStatus(
 257                                                                 Collections.singletonList(
 258                                                                         new NodeStatusBuilder()
 259                                                                                 .setNode(clusterExtension.selfAddress().toString())
 260                                                                                 .setStatus(Status.Connected)
 261                                                                                 .build()))
 262                                                         .build())
 263                                         .setHost(netconfNode.getHost())
 264                                         .setPort(netconfNode.getPort())
 265                                         .setAvailableCapabilities(new AvailableCapabilitiesBuilder().build())
 266                                         .setUnavailableCapabilities(new UnavailableCapabilitiesBuilder().build())
 267                                         .build()).build();
 268                 return currentOperationalNode;
 269             }
 270         });
 271     }
 272
 273     @Nonnull
 274     @Override
 275     public ListenableFuture<Node> onNodeUpdated(@Nonnull final NodeId nodeId,
 276                                                 @Nonnull final Node configNode) {
 277         // first disconnect this node
 278         topologyDispatcher.unregisterMountPoint(nodeId);
 279
 280         if (connectionStatusregistration != null) {
 281             connectionStatusregistration.close();
 282         }
 283         topologyDispatcher.disconnectNode(nodeId);
 284
 285         // now reinit this connection with new settings
 286         final ListenableFuture<NetconfDeviceCapabilities> connectionFuture = topologyDispatcher.connectNode(nodeId, configNode);
 287
 288         Futures.addCallback(connectionFuture, new FutureCallback<NetconfDeviceCapabilities>() {
 289             @Override
 290             public void onSuccess(@Nullable NetconfDeviceCapabilities result) {
 291                 connectionStatusregistration = topologyDispatcher.registerConnectionStatusListener(nodeId, NetconfNodeManagerCallback.this);
 292             }
 293
 294             @Override
 295             public void onFailure(Throwable t) {
 296                 LOG.error("Connection to device failed", t);
 297             }
 298         });
 299
 300         final NetconfNode netconfNode = configNode.getAugmentation(NetconfNode.class);
 301
 302         return Futures.transform(connectionFuture, new Function<NetconfDeviceCapabilities, Node>() {
 303             @Nullable
 304             @Override
 305             public Node apply(NetconfDeviceCapabilities input) {
 306                 // build state data
 307                 return new NodeBuilder()
 308                         .setNodeId(nodeId)
 309                         .addAugmentation(NetconfNode.class,
 310                                 new NetconfNodeBuilder()
 311                                         .setConnectionStatus(ConnectionStatus.Connected)
 312                                         .setClusteredConnectionStatus(
 313                                                 new ClusteredConnectionStatusBuilder()
 314                                                         .setNodeStatus(
 315                                                                 Collections.singletonList(
 316                                                                         new NodeStatusBuilder()
 317                                                                                 .setNode(clusterExtension.selfAddress().toString())
 318                                                                                 .setStatus(Status.Connected)
 319                                                                                 .build()))
 320                                                         .build())
 321                                         .setHost(netconfNode.getHost())
 322                                         .setPort(netconfNode.getPort())
 323                                         .setAvailableCapabilities(new AvailableCapabilitiesBuilder().build())
 324                                         .setUnavailableCapabilities(new UnavailableCapabilitiesBuilder().build())
 325                                         .build())
 326                         .build();
 327             }
 328         });
 329     }
 330
 331     @Nonnull @Override public ListenableFuture<Void> onNodeDeleted(@Nonnull final NodeId nodeId) {
 332         // cleanup and disconnect
 333         topologyDispatcher.unregisterMountPoint(nodeId);
 334
 335         if(connectionStatusregistration != null) {
 336             connectionStatusregistration.close();
 337         }
 338         roleChangeStrategy.unregisterRoleCandidate();
 339         return topologyDispatcher.disconnectNode(nodeId);
 340     }
 341
 342     @Nonnull
 343     @Override
 344     public ListenableFuture<Node> getCurrentStatusForNode(@Nonnull NodeId nodeId) {
 345         LOG.debug("Getting current status for node: {} status: {}", nodeId, currentOperationalNode);
 346         return Futures.immediateFuture(currentOperationalNode);
 347     }
 348
 349     @Override
 350     public void onRoleChanged(final RoleChangeDTO roleChangeDTO) {
 351         topologyDispatcher.unregisterMountPoint(new NodeId(nodeId));
 352
 353         isMaster = roleChangeDTO.isOwner();
 354         if (isMaster) {
 355             LOG.warn("Gained ownership of node - registering master mount point");
 356             topologyDispatcher.registerMountPoint(TypedActor.context(), new NodeId(nodeId));
 357         } else {
 358             // even though mount point is ready, we dont know who the master mount point will be since we havent received the announce msg
 359             // after we receive the message we can go ahead and register the mount point
 360             if (connected && masterDataBrokerRef != null) {
 361                 topologyDispatcher.registerMountPoint(TypedActor.context(), new NodeId(nodeId), masterDataBrokerRef);
 362             } else {
 363                 LOG.debug("Mount point is ready, still waiting for master mount point");
 364             }
 365         }
 366     }
 367
 368     @Override
 369     public void onDeviceConnected(final SchemaContext remoteSchemaContext, final NetconfSessionPreferences netconfSessionPreferences, final DOMRpcService deviceRpc) {
 370         // we need to notify the higher level that something happened, get a current status from all other nodes, and aggregate a new result
 371         connected = true;
 372         if (!isMaster && masterDataBrokerRef != null) {
 373             // if we're not master but one is present already, we need to register mountpoint
 374             LOG.warn("Device connected, master already present in topology, registering mount point");
 375             topologyDispatcher.registerMountPoint(cachedContext, new NodeId(nodeId), masterDataBrokerRef);
 376         }
 377         List<String> capabilityList = new ArrayList<>();
 378         capabilityList.addAll(netconfSessionPreferences.getNetconfDeviceCapabilities().getNonModuleBasedCapabilities());
 379         capabilityList.addAll(FluentIterable.from(netconfSessionPreferences.getNetconfDeviceCapabilities().getResolvedCapabilities()).transform(AVAILABLE_CAPABILITY_TRANSFORMER).toList());
 380         final AvailableCapabilitiesBuilder avCapabalitiesBuilder = new AvailableCapabilitiesBuilder();
 381         avCapabalitiesBuilder.setAvailableCapability(capabilityList);
 382
 383         final UnavailableCapabilities unavailableCapabilities =
 384                 new UnavailableCapabilitiesBuilder().setUnavailableCapability(FluentIterable.from(netconfSessionPreferences.getNetconfDeviceCapabilities().getUnresolvedCapabilites().entrySet())
 385                         .transform(UNAVAILABLE_CAPABILITY_TRANSFORMER).toList()).build();
 386
 387         final NetconfNode netconfNode = currentConfig.getAugmentation(NetconfNode.class);
 388         currentOperationalNode = new NodeBuilder().setNodeId(new NodeId(nodeId))
 389                 .addAugmentation(NetconfNode.class,
 390                         new NetconfNodeBuilder()
 391                                 .setConnectionStatus(ConnectionStatus.Connected)
 392                                 .setClusteredConnectionStatus(
 393                                         new ClusteredConnectionStatusBuilder()
 394                                                 .setNodeStatus(
 395                                                         Collections.singletonList(
 396                                                                 new NodeStatusBuilder()
 397                                                                         .setNode(clusterExtension.selfAddress().toString())
 398                                                                         .setStatus(Status.Connected)
 399                                                                         .build()))
 400                                                 .build())
 401                                 .setHost(netconfNode.getHost())
 402                                 .setPort(netconfNode.getPort())
 403                                 .setAvailableCapabilities(avCapabalitiesBuilder.build())
 404                                 .setUnavailableCapabilities(unavailableCapabilities)
 405                                 .build())
 406                 .build();
 407         topologyManager.notifyNodeStatusChange(new NodeId(nodeId));
 408     }
 409
 410     @Override
 411     public void onDeviceDisconnected() {
 412         // we need to notify the higher level that something happened, get a current status from all other nodes, and aggregate a new result
 413         LOG.debug("onDeviceDisconnected received, unregistered role candidate");
 414         connected = false;
 415         if (isMaster) {
 416             // announce that master mount point is going down
 417 //            for (final Member member : clusterExtension.state().getMembers()) {
 418 //                actorSystem.actorSelection(member.address() + "/user/" + topologyId + "/" + nodeId).tell(new AnnounceMasterMountPointDown(), null);
 419 //            }
 420             // set master to false since we are unregistering, the ownershipChanged callback can sometimes lag behind causing multiple nodes behaving as masters
 421             isMaster = false;
 422             // onRoleChanged() callback can sometimes lag behind, so unregister the mount right when it disconnects
 423             topologyDispatcher.unregisterMountPoint(new NodeId(nodeId));
 424         }
 425
 426         final NetconfNode netconfNode = currentConfig.getAugmentation(NetconfNode.class);
 427         currentOperationalNode = new NodeBuilder().setNodeId(new NodeId(nodeId))
 428                 .addAugmentation(NetconfNode.class,
 429                         new NetconfNodeBuilder()
 430                                 .setConnectionStatus(ConnectionStatus.Connecting)
 431                                 .setClusteredConnectionStatus(
 432                                         new ClusteredConnectionStatusBuilder()
 433                                                 .setNodeStatus(
 434                                                         Collections.singletonList(
 435                                                                 new NodeStatusBuilder()
 436                                                                         .setNode(clusterExtension.selfAddress().toString())
 437                                                                         .setStatus(Status.Unavailable)
 438                                                                         .build()))
 439                                                 .build())
 440                                 .setHost(netconfNode.getHost())
 441                                 .setPort(netconfNode.getPort())
 442                                 .build()).build();
 443         topologyManager.notifyNodeStatusChange(new NodeId(nodeId));
 444     }
 445
 446     @Override
 447     public void onDeviceFailed(Throwable throwable) {
 448         // we need to notify the higher level that something happened, get a current status from all other nodes, and aggregate a new result
 449         // no need to remove mountpoint, we should receive onRoleChanged callback after unregistering from election that unregisters the mountpoint
 450         LOG.debug("onDeviceFailed received");
 451         connected = false;
 452         String reason = (throwable != null && throwable.getMessage() != null) ? throwable.getMessage() : UNKNOWN_REASON;
 453
 454         currentOperationalNode = new NodeBuilder().setNodeId(new NodeId(nodeId))
 455                 .addAugmentation(NetconfNode.class,
 456                         new NetconfNodeBuilder()
 457                                 .setConnectionStatus(ConnectionStatus.UnableToConnect)
 458                                 .setClusteredConnectionStatus(
 459                                         new ClusteredConnectionStatusBuilder()
 460                                                 .setNodeStatus(
 461                                                         Collections.singletonList(
 462                                                                 new NodeStatusBuilder()
 463                                                                         .setNode(clusterExtension.selfAddress().toString())
 464                                                                         .setStatus(Status.Failed)
 465                                                                         .build()))
 466                                                 .build())
 467                                 .setConnectedMessage(reason)
 468                                 .build()).build();
 469         topologyManager.notifyNodeStatusChange(new NodeId(nodeId));
 470     }
 471
 472     @Override
 473     public void onNotification(DOMNotification domNotification) {
 474         //NOOP
 475     }
 476
 477     @Override
 478     public void close() {
 479         //NOOP
 480     }
 481
 482     @Override
 483     public void onReceive(Object message, ActorRef actorRef) {
 484         LOG.warn("Netconf node callback received message {}", message);
 485         if (message instanceof AnnounceMasterMountPoint) {
 486             masterDataBrokerRef = actorRef;
 487             // candidate gets registered when mount point is already prepared so we can go ahead a register it
 488             if (roleChangeStrategy.isCandidateRegistered()) {
 489                 topologyDispatcher.registerMountPoint(TypedActor.context(), new NodeId(nodeId), masterDataBrokerRef);
 490             } else {
 491                 LOG.warn("Announce master mount point msg received but mount point is not ready yet");
 492             }
 493         } else if (message instanceof AnnounceMasterMountPointDown) {
 494             LOG.warn("Master mountpoint went down");
 495             masterDataBrokerRef = null;
 496             topologyDispatcher.unregisterMountPoint(new NodeId(nodeId));
 497         }
 498     }
 499
 500     @Override
 501     public void onSessionUp(NetconfClientSession netconfClientSession) {
 502         //NetconfClientSession is up, we can register role candidate
 503         LOG.debug("Netconf client session is up, registering role candidate");
 504         roleChangeStrategy.registerRoleCandidate(nodeManager);
 505     }
 506
 507     @Override
 508     public void onSessionDown(NetconfClientSession netconfClientSession, Exception e) {
 509         LOG.debug("Netconf client session is down, unregistering role candidate");
 510         roleChangeStrategy.unregisterRoleCandidate();
 511     }
 512
 513     @Override
 514     public void onSessionTerminated(NetconfClientSession netconfClientSession, NetconfTerminationReason netconfTerminationReason) {
 515         LOG.debug("Netconf client session is down, unregistering role candidate");
 516         roleChangeStrategy.unregisterRoleCandidate();
 517     }
 518
 519     @Override
 520     public void onMessage(NetconfClientSession netconfClientSession, NetconfMessage netconfMessage) {
 521         //NOOP
 522     }
 523 }