networkmodel/src/main/java/org/opendaylight/transportpce/networkmodel/service/NetworkModelServiceImpl.java

   1 /*
   2  * Copyright © 2016 AT&T 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 package org.opendaylight.transportpce.networkmodel.service;
   9
  10 import com.google.common.util.concurrent.ListenableFuture;
  11 import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
  12 import java.util.ArrayList;
  13 import java.util.HashMap;
  14 import java.util.List;
  15 import java.util.Map;
  16 import java.util.Optional;
  17 import java.util.concurrent.ExecutionException;
  18 import java.util.concurrent.TimeUnit;
  19 import java.util.concurrent.TimeoutException;
  20 import java.util.stream.Collectors;
  21 import org.eclipse.jdt.annotation.Nullable;
  22 import org.opendaylight.mdsal.binding.api.NotificationPublishService;
  23 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  24 import org.opendaylight.transportpce.common.InstanceIdentifiers;
  25 import org.opendaylight.transportpce.common.NetworkUtils;
  26 import org.opendaylight.transportpce.common.mapping.PortMapping;
  27 import org.opendaylight.transportpce.common.network.NetworkTransactionService;
  28 import org.opendaylight.transportpce.networkmodel.R2RLinkDiscovery;
  29 import org.opendaylight.transportpce.networkmodel.dto.TopologyShard;
  30 import org.opendaylight.transportpce.networkmodel.util.ClliNetwork;
  31 import org.opendaylight.transportpce.networkmodel.util.LinkIdUtil;
  32 import org.opendaylight.transportpce.networkmodel.util.OpenRoadmNetwork;
  33 import org.opendaylight.transportpce.networkmodel.util.OpenRoadmOtnTopology;
  34 import org.opendaylight.transportpce.networkmodel.util.OpenRoadmTopology;
  35 import org.opendaylight.transportpce.networkmodel.util.TopologyUtils;
  36 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.networkmodel.rev201116.TopologyUpdateResult;
  37 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.networkmodel.rev201116.TopologyUpdateResultBuilder;
  38 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.networkmodel.rev201116.topology.update.result.TopologyChanges;
  39 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.networkmodel.rev201116.topology.update.result.TopologyChangesBuilder;
  40 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.networkmodel.rev201116.topology.update.result.TopologyChangesKey;
  41 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev210426.OpenroadmNodeVersion;
  42 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev210426.mapping.Mapping;
  43 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev210426.network.nodes.NodeInfo;
  44 import org.opendaylight.yang.gen.v1.http.org.openroadm.device.types.rev191129.NodeTypes;
  45 import org.opendaylight.yang.gen.v1.http.org.openroadm.otn.network.topology.rev200529.Link1;
  46 import org.opendaylight.yang.gen.v1.http.org.openroadm.otn.network.topology.rev200529.TerminationPoint1;
  47 import org.opendaylight.yang.gen.v1.http.org.transportpce.common.types.rev210618.link.tp.LinkTp;
  48 import org.opendaylight.yang.gen.v1.http.org.transportpce.common.types.rev210618.link.tp.LinkTpBuilder;
  49 import org.opendaylight.yang.gen.v1.http.transportpce.topology.rev210511.OtnLinkType;
  50 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.rev180226.NetworkId;
  51 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.rev180226.Networks;
  52 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.rev180226.NodeId;
  53 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.rev180226.networks.Network;
  54 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.rev180226.networks.NetworkKey;
  55 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.rev180226.networks.network.Node;
  56 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.rev180226.networks.network.NodeKey;
  57 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.topology.rev180226.LinkId;
  58 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.topology.rev180226.Network1;
  59 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.topology.rev180226.Node1;
  60 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.topology.rev180226.TpId;
  61 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.topology.rev180226.networks.network.Link;
  62 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.topology.rev180226.networks.network.LinkKey;
  63 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.topology.rev180226.networks.network.node.TerminationPoint;
  64 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.topology.rev180226.networks.network.node.TerminationPointKey;
  65 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.topology.rev180226.networks.network.node.termination.point.SupportingTerminationPoint;
  66 import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.NetconfNodeConnectionStatus;
  67 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  68 import org.opendaylight.yangtools.yang.common.Uint32;
  69 import org.slf4j.Logger;
  70 import org.slf4j.LoggerFactory;
  71
  72 public class NetworkModelServiceImpl implements NetworkModelService {
  73
  74     private static final Logger LOG = LoggerFactory.getLogger(NetworkModelServiceImpl.class);
  75
  76     private NetworkTransactionService networkTransactionService;
  77     private final R2RLinkDiscovery linkDiscovery;
  78     private final PortMapping portMapping;
  79     private Map<String, TopologyShard> topologyShardMountedDevice;
  80     private Map<String, TopologyShard> otnTopologyShardMountedDevice;
  81     // Variables for creating and sending topology update notification
  82     private final NotificationPublishService notificationPublishService;
  83     private Map<TopologyChangesKey, TopologyChanges> topologyChanges;
  84     private TopologyUpdateResult notification = null;
  85
  86     public NetworkModelServiceImpl(final NetworkTransactionService networkTransactionService,
  87             final R2RLinkDiscovery linkDiscovery, PortMapping portMapping,
  88             final NotificationPublishService notificationPublishService) {
  89
  90         this.networkTransactionService = networkTransactionService;
  91         this.linkDiscovery = linkDiscovery;
  92         this.portMapping = portMapping;
  93         this.topologyShardMountedDevice = new HashMap<String, TopologyShard>();
  94         this.otnTopologyShardMountedDevice = new HashMap<String, TopologyShard>();
  95         this.notificationPublishService = notificationPublishService;
  96         this.topologyChanges = new HashMap<TopologyChangesKey, TopologyChanges>();
  97     }
  98
  99     public void init() {
 100         LOG.info("init ...");
 101     }
 102
 103     public void close() {
 104     }
 105
 106     @Override
 107     public void createOpenRoadmNode(String nodeId, String openRoadmVersion) {
 108         try {
 109             LOG.info("createOpenROADMNode: {} ", nodeId);
 110
 111             if (!portMapping.createMappingData(nodeId, openRoadmVersion)) {
 112                 LOG.warn("Could not generate port mapping for {} skipping network model creation", nodeId);
 113                 return;
 114             }
 115             NodeInfo nodeInfo = portMapping.getNode(nodeId).getNodeInfo();
 116             // node creation in clli-network
 117             Node clliNode = ClliNetwork.createNode(nodeId, nodeInfo);
 118             InstanceIdentifier<Node> iiClliNode = InstanceIdentifier.builder(Networks.class)
 119                 .child(Network.class, new NetworkKey(new NetworkId(NetworkUtils.CLLI_NETWORK_ID)))
 120                 .child(Node.class, clliNode.key())
 121                 .build();
 122             LOG.info("creating node in {}", NetworkUtils.CLLI_NETWORK_ID);
 123             networkTransactionService.merge(LogicalDatastoreType.CONFIGURATION, iiClliNode, clliNode);
 124
 125             // node creation in openroadm-network
 126             Node openroadmNetworkNode = OpenRoadmNetwork.createNode(nodeId, nodeInfo);
 127             InstanceIdentifier<Node> iiopenroadmNetworkNode = InstanceIdentifier.builder(Networks.class)
 128                 .child(Network.class, new NetworkKey(new NetworkId(NetworkUtils.UNDERLAY_NETWORK_ID)))
 129                 .child(Node.class, openroadmNetworkNode.key())
 130                 .build();
 131             LOG.info("creating node in {}", NetworkUtils.UNDERLAY_NETWORK_ID);
 132             networkTransactionService.merge(LogicalDatastoreType.CONFIGURATION, iiopenroadmNetworkNode,
 133                 openroadmNetworkNode);
 134
 135             // nodes/links creation in openroadm-topology
 136             TopologyShard topologyShard = OpenRoadmTopology.createTopologyShard(portMapping.getNode(nodeId));
 137             if (topologyShard != null) {
 138                 this.topologyShardMountedDevice.put(nodeId, topologyShard);
 139                 for (Node openRoadmTopologyNode : topologyShard.getNodes()) {
 140                     LOG.info("creating node {} in {}", openRoadmTopologyNode.getNodeId().getValue(),
 141                         NetworkUtils.OVERLAY_NETWORK_ID);
 142                     InstanceIdentifier<Node> iiOpenRoadmTopologyNode = InstanceIdentifier.builder(Networks.class)
 143                         .child(Network.class, new NetworkKey(new NetworkId(NetworkUtils.OVERLAY_NETWORK_ID)))
 144                         .child(Node.class, openRoadmTopologyNode.key())
 145                         .build();
 146                     networkTransactionService.merge(LogicalDatastoreType.CONFIGURATION, iiOpenRoadmTopologyNode,
 147                         openRoadmTopologyNode);
 148                 }
 149                 for (Link openRoadmTopologyLink : topologyShard.getLinks()) {
 150                     LOG.info("creating link {} in {}", openRoadmTopologyLink.getLinkId().getValue(),
 151                         NetworkUtils.OVERLAY_NETWORK_ID);
 152                     InstanceIdentifier<Link> iiOpenRoadmTopologyLink = InstanceIdentifier.builder(Networks.class)
 153                         .child(Network.class, new NetworkKey(new NetworkId(NetworkUtils.OVERLAY_NETWORK_ID)))
 154                         .augmentation(Network1.class)
 155                         .child(Link.class, openRoadmTopologyLink.key())
 156                         .build();
 157                     networkTransactionService.merge(LogicalDatastoreType.CONFIGURATION, iiOpenRoadmTopologyLink,
 158                         openRoadmTopologyLink);
 159                 }
 160             } else {
 161                 LOG.error("Unable to create openroadm-topology shard for node {}!", nodeId);
 162             }
 163             // nodes/links creation in otn-topology
 164             if (nodeInfo.getNodeType().getIntValue() == 2 && (nodeInfo.getOpenroadmVersion().getIntValue() != 1)) {
 165                 createOpenRoadmOtnNode(nodeId);
 166             }
 167             networkTransactionService.commit().get();
 168             // neighbour links through LLDP
 169             if (nodeInfo.getNodeType().getIntValue() == 1) {
 170                 this.linkDiscovery.readLLDP(new NodeId(nodeId), openRoadmVersion);
 171             }
 172             LOG.info("all nodes and links created");
 173         } catch (InterruptedException | ExecutionException e) {
 174             LOG.error("ERROR: ", e);
 175         }
 176     }
 177
 178     @Override
 179     public void setOpenRoadmNodeStatus(String nodeId, NetconfNodeConnectionStatus.ConnectionStatus connectionStatus) {
 180         LOG.info("setOpenROADMNodeStatus: {} {}", nodeId, connectionStatus.name());
 181         /*
 182           TODO: set connection status of the device in model,
 183           TODO: so we don't need to keep it in memory (Set<String> currentMountedDevice)
 184           TODO: unfortunately there is no connection status OpenROADM in network models
 185           TODO: waiting for new model version
 186          */
 187     }
 188
 189     /*
 190      @see org.opendaylight.transportpce.networkmodel.service.NetworkModelService# deleteOpenROADMnode(java.lang.String)
 191      */
 192
 193     @Override
 194     public boolean deleteOpenRoadmnode(String nodeId) {
 195         try {
 196             if (!this.portMapping.isNodeExist(nodeId)) {
 197                 return false;
 198             }
 199             NodeKey nodeIdKey = new NodeKey(new NodeId(nodeId));
 200
 201             LOG.info("deleting node in {}", NetworkUtils.UNDERLAY_NETWORK_ID);
 202             InstanceIdentifier<Node> iiopenroadmNetworkNode = InstanceIdentifier.builder(Networks.class)
 203                 .child(Network.class, new NetworkKey(new NetworkId(NetworkUtils.UNDERLAY_NETWORK_ID)))
 204                 .child(Node.class, nodeIdKey)
 205                 .build();
 206             this.networkTransactionService.delete(LogicalDatastoreType.CONFIGURATION, iiopenroadmNetworkNode);
 207
 208             TopologyShard topologyShard = this.topologyShardMountedDevice.get(nodeId);
 209             if (topologyShard != null) {
 210                 for (Node openRoadmTopologyNode : topologyShard.getNodes()) {
 211                     LOG.info("deleting node {} in {}", openRoadmTopologyNode.getNodeId().getValue(),
 212                         NetworkUtils.OVERLAY_NETWORK_ID);
 213                     InstanceIdentifier<Node> iiOpenRoadmTopologyNode = InstanceIdentifier.builder(Networks.class)
 214                         .child(Network.class, new NetworkKey(new NetworkId(NetworkUtils.OVERLAY_NETWORK_ID)))
 215                         .child(Node.class, openRoadmTopologyNode.key())
 216                         .build();
 217                     this.networkTransactionService.delete(LogicalDatastoreType.CONFIGURATION, iiOpenRoadmTopologyNode);
 218                 }
 219                 for (Link openRoadmTopologyLink : topologyShard.getLinks()) {
 220                     LOG.info("deleting link {} in {}", openRoadmTopologyLink.getLinkId().getValue(),
 221                         NetworkUtils.OVERLAY_NETWORK_ID);
 222                     InstanceIdentifier<Link> iiOpenRoadmTopologyLink = InstanceIdentifier.builder(Networks.class)
 223                         .child(Network.class, new NetworkKey(new NetworkId(NetworkUtils.OVERLAY_NETWORK_ID)))
 224                         .augmentation(Network1.class)
 225                         .child(Link.class, openRoadmTopologyLink.key())
 226                         .build();
 227                     this.networkTransactionService.delete(LogicalDatastoreType.CONFIGURATION, iiOpenRoadmTopologyLink);
 228                 }
 229             } else {
 230                 LOG.warn("TopologyShard for node '{}' is not present", nodeId);
 231             }
 232             @Nullable
 233             OpenroadmNodeVersion deviceVersion = this.portMapping.getNode(nodeId).getNodeInfo().getOpenroadmVersion();
 234             @Nullable
 235             NodeTypes nodeType = this.portMapping.getNode(nodeId).getNodeInfo().getNodeType();
 236             if (nodeType.getIntValue() == 2 && deviceVersion.getIntValue() != 1) {
 237                 TopologyShard otnTopologyShard = this.otnTopologyShardMountedDevice.get(nodeId);
 238                 if (otnTopologyShard != null) {
 239                     LOG.info("suppression de otnTopologyShard = {}", otnTopologyShard.toString());
 240                     for (Node otnTopologyNode : otnTopologyShard.getNodes()) {
 241                         LOG.info("deleting node {} in {}", otnTopologyNode.getNodeId().getValue(),
 242                             NetworkUtils.OTN_NETWORK_ID);
 243                         InstanceIdentifier<Node> iiotnTopologyNode = InstanceIdentifier.builder(Networks.class)
 244                             .child(Network.class, new NetworkKey(new NetworkId(NetworkUtils.OTN_NETWORK_ID)))
 245                             .child(Node.class, otnTopologyNode.key())
 246                             .build();
 247                         this.networkTransactionService.delete(LogicalDatastoreType.CONFIGURATION, iiotnTopologyNode);
 248                     }
 249                     for (Link otnTopologyLink : otnTopologyShard.getLinks()) {
 250                         LOG.info("deleting link {} in {}", otnTopologyLink.getLinkId().getValue(),
 251                             NetworkUtils.OTN_NETWORK_ID);
 252                         InstanceIdentifier<Link> iiotnTopologyLink = InstanceIdentifier.builder(Networks.class)
 253                             .child(Network.class, new NetworkKey(new NetworkId(NetworkUtils.OTN_NETWORK_ID)))
 254                             .augmentation(Network1.class)
 255                             .child(Link.class, otnTopologyLink.key())
 256                             .build();
 257                         this.networkTransactionService.delete(LogicalDatastoreType.CONFIGURATION, iiotnTopologyLink);
 258                     }
 259                 }
 260             }
 261
 262             LOG.info("deleteOpenROADMnode: {} version {}", nodeId, deviceVersion.getName());
 263             this.portMapping.deleteMappingData(nodeId);
 264
 265             this.networkTransactionService.commit().get(1, TimeUnit.SECONDS);
 266             LOG.info("all nodes and links deleted ! ");
 267         } catch (InterruptedException | ExecutionException | TimeoutException e) {
 268             LOG.error("Error when trying to delete node : {}", nodeId, e);
 269             return false;
 270         }
 271         return true;
 272     }
 273
 274     @Override
 275     public void updateOpenRoadmTopologies(String nodeId, Mapping mapping) {
 276         LOG.info("update OpenRoadm topologies after change update from: {} ", nodeId);
 277         this.topologyChanges.clear();
 278         Network openroadmTopology = null;
 279         Network otnTopology = null;
 280         Map<LinkKey, Link> openroadmTopologyLinks = null;
 281         Map<LinkKey, Link> otnTopologyLinks = null;
 282         try {
 283             openroadmTopology = this.networkTransactionService
 284                 .read(LogicalDatastoreType.CONFIGURATION, InstanceIdentifiers.OVERLAY_NETWORK_II)
 285                 .get().get();
 286             if (openroadmTopology.augmentation(Network1.class) != null) {
 287                 openroadmTopologyLinks = openroadmTopology.augmentation(Network1.class).getLink();
 288             }
 289             otnTopology = this.networkTransactionService
 290                 .read(LogicalDatastoreType.CONFIGURATION, InstanceIdentifiers.OTN_NETWORK_II)
 291                 .get().get();
 292             if (otnTopology.augmentation(Network1.class) != null) {
 293                 otnTopologyLinks = otnTopology.augmentation(Network1.class).getLink();
 294             }
 295         } catch (InterruptedException | ExecutionException e) {
 296             LOG.error("Error when trying to update node : {}", nodeId, e);
 297         }
 298         if (openroadmTopology == null || otnTopology == null) {
 299             LOG.warn("Error getting topologies from datastore");
 300             return;
 301         }
 302         String abstractNodeid = String.join("-", nodeId, mapping.getLogicalConnectionPoint().split("-")[0]);
 303         // nodes/links update in openroadm-topology
 304         if (openroadmTopology.getNode() != null) {
 305             TopologyShard topologyShard = TopologyUtils.updateTopologyShard(abstractNodeid, mapping,
 306                 openroadmTopology.getNode(), openroadmTopologyLinks);
 307             if (topologyShard.getLinks() != null) {
 308                 for (Link link : topologyShard.getLinks()) {
 309                     LOG.info("updating links {} in {}", link.getLinkId().getValue(),
 310                         NetworkUtils.OVERLAY_NETWORK_ID);
 311                     InstanceIdentifier<Link> iiTopologyLink = InstanceIdentifier.builder(Networks.class)
 312                         .child(Network.class, new NetworkKey(new NetworkId(NetworkUtils.OVERLAY_NETWORK_ID)))
 313                         .augmentation(Network1.class)
 314                         .child(Link.class, link.key())
 315                         .build();
 316                     networkTransactionService.merge(LogicalDatastoreType.CONFIGURATION, iiTopologyLink, link);
 317                 }
 318             }
 319             if (topologyShard.getTps() != null) {
 320                 for (TerminationPoint tp : topologyShard.getTps()) {
 321                     LOG.info("updating TP {} in openroadm-topology", tp.getTpId().getValue());
 322                     InstanceIdentifier<TerminationPoint> iiTopologyTp = InstanceIdentifier.builder(Networks.class)
 323                         .child(Network.class, new NetworkKey(new NetworkId(NetworkUtils.OVERLAY_NETWORK_ID)))
 324                         .child(Node.class, new NodeKey(new NodeId(abstractNodeid)))
 325                         .augmentation(Node1.class)
 326                         .child(TerminationPoint.class, new TerminationPointKey(tp.getTpId()))
 327                         .build();
 328                     networkTransactionService.merge(LogicalDatastoreType.CONFIGURATION, iiTopologyTp, tp);
 329                     TopologyChanges tc = new TopologyChangesBuilder()
 330                         .withKey(new TopologyChangesKey(abstractNodeid, tp.getTpId().getValue()))
 331                         .setNodeId(abstractNodeid)
 332                         .setTpId(tp.getTpId().getValue())
 333                         .setState(tp.augmentation(
 334                             org.opendaylight.yang.gen.v1.http.org.openroadm.common.network.rev200529.TerminationPoint1
 335                                 .class).getOperationalState())
 336                         .build();
 337                     if (!this.topologyChanges.containsKey(tc.key())) {
 338                         this.topologyChanges.put(tc.key(), tc);
 339                     }
 340                 }
 341             }
 342         }
 343         // nodes/links update in otn-topology
 344         if (otnTopology.getNode() != null
 345             && otnTopology.getNode().containsKey(new NodeKey(new NodeId(abstractNodeid)))) {
 346             TopologyShard otnShard = TopologyUtils.updateTopologyShard(abstractNodeid, mapping,
 347                 otnTopology.getNode(), otnTopologyLinks);
 348             if (otnShard.getLinks() != null) {
 349                 for (Link link : otnShard.getLinks()) {
 350                     LOG.info("updating links {} in {}", link.getLinkId().getValue(),
 351                         NetworkUtils.OVERLAY_NETWORK_ID);
 352                     InstanceIdentifier<Link> iiTopologyLink = InstanceIdentifier.builder(Networks.class)
 353                         .child(Network.class, new NetworkKey(new NetworkId(NetworkUtils.OTN_NETWORK_ID)))
 354                         .augmentation(Network1.class)
 355                         .child(Link.class, link.key())
 356                         .build();
 357                     networkTransactionService.merge(LogicalDatastoreType.CONFIGURATION, iiTopologyLink, link);
 358                 }
 359             }
 360             if (otnShard.getTps() != null) {
 361                 for (TerminationPoint tp : otnShard.getTps()) {
 362                     LOG.info("updating TP {} in otn-topology", tp.getTpId().getValue());
 363                     InstanceIdentifier<TerminationPoint> iiTopologyTp = InstanceIdentifier.builder(Networks.class)
 364                         .child(Network.class, new NetworkKey(new NetworkId(NetworkUtils.OTN_NETWORK_ID)))
 365                         .child(Node.class, new NodeKey(new NodeId(abstractNodeid)))
 366                         .augmentation(Node1.class)
 367                         .child(TerminationPoint.class, new TerminationPointKey(tp.getTpId()))
 368                         .build();
 369                     networkTransactionService.merge(LogicalDatastoreType.CONFIGURATION, iiTopologyTp, tp);
 370                     TopologyChanges tc = new TopologyChangesBuilder()
 371                         .withKey(new TopologyChangesKey(abstractNodeid, tp.getTpId().getValue()))
 372                         .setNodeId(abstractNodeid)
 373                         .setTpId(tp.getTpId().getValue())
 374                         .setState(tp.augmentation(
 375                             org.opendaylight.yang.gen.v1.http.org.openroadm.common.network.rev200529.TerminationPoint1
 376                                 .class).getOperationalState())
 377                         .build();
 378                     if (!this.topologyChanges.containsKey(tc.key())) {
 379                         this.topologyChanges.put(tc.key(), tc);
 380                     }
 381                 }
 382             }
 383         }
 384         // commit datastore updates
 385         try {
 386             networkTransactionService.commit().get();
 387             sendNotification();
 388         } catch (InterruptedException | ExecutionException e) {
 389             LOG.error("Error updating openroadm-topology", e);
 390         }
 391     }
 392
 393     @Override
 394     public void createOtnLinks(String nodeA, String tpA, String nodeZ, String tpZ, OtnLinkType linkType) {
 395         TopologyShard otnTopologyShard;
 396         switch (linkType) {
 397             case OTU4:
 398             case OTUC4:
 399                 otnTopologyShard = OpenRoadmOtnTopology.createOtnLinks(nodeA, tpA, nodeZ, tpZ, linkType);
 400                 break;
 401             case ODTU4:
 402             case ODUC4:
 403                 String nodeTopoA = new StringBuilder(nodeA).append("-").append(tpA.split("-")[0]).toString();
 404                 String nodeTopoZ = new StringBuilder(nodeZ).append("-").append(tpZ.split("-")[0]).toString();
 405                 List<LinkId> linkIdList = new ArrayList<>();
 406                 String prefix;
 407                 if (OtnLinkType.ODTU4.equals(linkType)) {
 408                     prefix = OtnLinkType.OTU4.getName();
 409                 } else {
 410                     prefix = OtnLinkType.OTUC4.getName();
 411                 }
 412                 linkIdList.add(LinkIdUtil.buildOtnLinkId(nodeTopoA, tpA, nodeTopoZ, tpZ, prefix));
 413                 linkIdList.add(LinkIdUtil.buildOtnLinkId(nodeTopoZ, tpZ, nodeTopoA, tpA, prefix));
 414                 List<Link> supportedOtu4links = getOtnLinks(linkIdList);
 415                 List<TerminationPoint> tps = getOtnNodeTps(nodeTopoA, tpA, nodeTopoZ, tpZ);
 416                 otnTopologyShard = OpenRoadmOtnTopology.createOtnLinks(supportedOtu4links, tps, linkType);
 417                 break;
 418             default:
 419                 LOG.error("unknown otn link type {}", linkType);
 420                 otnTopologyShard = new TopologyShard(null, null);
 421         }
 422         if (otnTopologyShard.getLinks() != null) {
 423             for (Link otnTopologyLink : otnTopologyShard.getLinks()) {
 424                 LOG.info("creating and updating otn links {} in {}", otnTopologyLink.getLinkId().getValue(),
 425                     NetworkUtils.OVERLAY_NETWORK_ID);
 426                 InstanceIdentifier<Link> iiOtnTopologyLink = InstanceIdentifier.builder(Networks.class)
 427                     .child(Network.class, new NetworkKey(new NetworkId(NetworkUtils.OTN_NETWORK_ID)))
 428                     .augmentation(Network1.class)
 429                     .child(Link.class, otnTopologyLink.key())
 430                     .build();
 431                 networkTransactionService.merge(LogicalDatastoreType.CONFIGURATION, iiOtnTopologyLink, otnTopologyLink);
 432             }
 433         }
 434         if (otnTopologyShard.getTps() != null) {
 435             for (TerminationPoint otnTopologyTp : otnTopologyShard.getTps()) {
 436                 LOG.info("updating otn nodes TP {} in otn-topology", otnTopologyTp.getTpId().getValue());
 437                 List<SupportingTerminationPoint> supportingTerminationPoint =
 438                     new ArrayList<>(otnTopologyTp.nonnullSupportingTerminationPoint().values());
 439                 InstanceIdentifier<TerminationPoint> iiOtnTopologyTp = InstanceIdentifier.builder(Networks.class)
 440                     .child(Network.class, new NetworkKey(new NetworkId(NetworkUtils.OTN_NETWORK_ID)))
 441                     .child(Node.class, new NodeKey(supportingTerminationPoint.get(0).getNodeRef()))
 442                     .augmentation(Node1.class)
 443                     .child(TerminationPoint.class, new TerminationPointKey(otnTopologyTp.getTpId()))
 444                     .build();
 445                 networkTransactionService.merge(LogicalDatastoreType.CONFIGURATION, iiOtnTopologyTp, otnTopologyTp);
 446             }
 447         }
 448         try {
 449             networkTransactionService.commit().get();
 450         } catch (InterruptedException | ExecutionException e) {
 451             LOG.error("Error adding OTN links in otn-topology", e);
 452         }
 453         LOG.info("OTN links created");
 454     }
 455
 456     @Override
 457     public void deleteOtnLinks(String nodeA, String tpA, String nodeZ, String tpZ, OtnLinkType linkType) {
 458         TopologyShard otnTopologyShard;
 459         String nodeTopoA = new StringBuilder(nodeA).append("-").append(tpA.split("-")[0]).toString();
 460         String nodeTopoZ = new StringBuilder(nodeZ).append("-").append(tpZ.split("-")[0]).toString();
 461         List<Link> otuLinks;
 462         List<LinkId> linkIdList = new ArrayList<>();
 463         String prefix;
 464         switch (linkType) {
 465             case OTU4:
 466             case OTUC4:
 467                 if (OtnLinkType.OTU4.equals(linkType)) {
 468                     prefix = OtnLinkType.OTU4.getName();
 469                 } else {
 470                     prefix = OtnLinkType.OTUC4.getName();
 471                 }
 472                 linkIdList.add(LinkIdUtil.buildOtnLinkId(nodeTopoA, tpA, nodeTopoZ, tpZ, prefix));
 473                 linkIdList.add(LinkIdUtil.buildOtnLinkId(nodeTopoZ, tpZ, nodeTopoA, tpA, prefix));
 474                 otuLinks = getOtnLinks(linkIdList);
 475                 if (checkLinks(otuLinks)) {
 476                     deleteLinks(otuLinks);
 477                 } else {
 478                     LOG.error("Error deleting OTU4 links");
 479                 }
 480                 otnTopologyShard = new TopologyShard(null, null);
 481                 break;
 482             case ODTU4:
 483             case ODUC4:
 484                 String prefix2;
 485                 if (OtnLinkType.ODTU4.equals(linkType)) {
 486                     prefix = OtnLinkType.ODTU4.getName();
 487                     prefix2 = OtnLinkType.OTU4.getName();
 488                 } else {
 489                     prefix = OtnLinkType.ODUC4.getName();
 490                     prefix2 = OtnLinkType.OTUC4.getName();
 491                 }
 492                 linkIdList.add(LinkIdUtil.buildOtnLinkId(nodeTopoA, tpA, nodeTopoZ, tpZ, prefix));
 493                 linkIdList.add(LinkIdUtil.buildOtnLinkId(nodeTopoZ, tpZ, nodeTopoA, tpA, prefix));
 494                 List<Link> oduLinks = getOtnLinks(linkIdList);
 495                 List<TerminationPoint> tps = getOtnNodeTps(nodeTopoA, tpA, nodeTopoZ, tpZ);
 496                 if (checkLinks(oduLinks) && checkTerminationPoints(tps)) {
 497                     deleteLinks(oduLinks);
 498                     linkIdList.clear();
 499                     linkIdList.add(LinkIdUtil.buildOtnLinkId(nodeTopoA, tpA, nodeTopoZ, tpZ, prefix2));
 500                     linkIdList.add(LinkIdUtil.buildOtnLinkId(nodeTopoZ, tpZ, nodeTopoA, tpA, prefix2));
 501                     otuLinks = getOtnLinks(linkIdList);
 502                     otnTopologyShard = OpenRoadmOtnTopology.deleteOtnLinks(otuLinks, tps, linkType);
 503                 } else {
 504                     LOG.error("Error deleting ODU4 links");
 505                     otnTopologyShard = new TopologyShard(null, null);
 506                 }
 507                 break;
 508             default:
 509                 LOG.error("unknown otn link type {}", linkType);
 510                 otnTopologyShard = new TopologyShard(null, null);
 511         }
 512         if (otnTopologyShard.getLinks() != null) {
 513             for (Link otnTopologyLink : otnTopologyShard.getLinks()) {
 514                 LOG.info("deleting and updating otn links {} in {}", otnTopologyLink.getLinkId().getValue(),
 515                     NetworkUtils.OVERLAY_NETWORK_ID);
 516                 InstanceIdentifier<Link> iiOtnTopologyLink = InstanceIdentifier.builder(Networks.class)
 517                     .child(Network.class, new NetworkKey(new NetworkId(NetworkUtils.OTN_NETWORK_ID)))
 518                     .augmentation(Network1.class)
 519                     .child(Link.class, otnTopologyLink.key())
 520                     .build();
 521                 networkTransactionService.merge(LogicalDatastoreType.CONFIGURATION, iiOtnTopologyLink, otnTopologyLink);
 522             }
 523         }
 524         if (otnTopologyShard.getTps() != null) {
 525             for (TerminationPoint otnTopologyTp : otnTopologyShard.getTps()) {
 526                 LOG.info("updating otn nodes TP {} in otn-topology", otnTopologyTp.getTpId().getValue());
 527                 List<SupportingTerminationPoint> supportingTerminationPoint =
 528                     new ArrayList<>(otnTopologyTp.nonnullSupportingTerminationPoint().values());
 529                 InstanceIdentifier<TerminationPoint> iiOtnTopologyTp = InstanceIdentifier.builder(Networks.class)
 530                     .child(Network.class, new NetworkKey(new NetworkId(NetworkUtils.OTN_NETWORK_ID)))
 531                     .child(Node.class, new NodeKey(supportingTerminationPoint.get(0).getNodeRef()))
 532                     .augmentation(Node1.class)
 533                     .child(TerminationPoint.class, new TerminationPointKey(otnTopologyTp.getTpId()))
 534                     .build();
 535                 networkTransactionService.put(LogicalDatastoreType.CONFIGURATION, iiOtnTopologyTp, otnTopologyTp);
 536             }
 537         }
 538         try {
 539             networkTransactionService.commit().get();
 540         } catch (InterruptedException | ExecutionException e) {
 541             LOG.error("Error deleting OTN links in otn-topology", e);
 542         }
 543         LOG.info("OTN links deletion terminated");
 544     }
 545
 546     @Override
 547     public void updateOtnLinks(
 548         org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.renderer.rev210618.renderer.rpc.result.sp.Link
 549             notifLink, Uint32 serviceRate, Short tribPortNb, Short minTribSoltNb, Short maxTribSlotNb,
 550             boolean isDeletion) {
 551
 552         LinkTp atermination = new LinkTpBuilder()
 553             .setNodeId(notifLink.getATermination().getNodeId())
 554             .setTpId(notifLink.getATermination().getTpId())
 555             .build();
 556         LinkTp ztermination = new LinkTpBuilder()
 557             .setNodeId(notifLink.getZTermination().getNodeId())
 558             .setTpId(notifLink.getZTermination().getTpId())
 559             .build();
 560         List<LinkTp> linkTerminations = new ArrayList<>();
 561         linkTerminations.add(atermination);
 562         linkTerminations.add(ztermination);
 563
 564         List<Link> supportedOdu4Links = getSupportingOdu4Links(linkTerminations, serviceRate);
 565         List<TerminationPoint> tps = getOtnNodeTps(linkTerminations);
 566         TopologyShard otnTopologyShard;
 567         otnTopologyShard = OpenRoadmOtnTopology.updateOtnLinks(supportedOdu4Links, tps, serviceRate, tribPortNb,
 568             minTribSoltNb, maxTribSlotNb, isDeletion);
 569         if (otnTopologyShard.getLinks() != null) {
 570             for (Link otnTopologyLink : otnTopologyShard.getLinks()) {
 571                 LOG.info("creating and updating otn links {} in {}", otnTopologyLink.getLinkId().getValue(),
 572                     NetworkUtils.OVERLAY_NETWORK_ID);
 573                 InstanceIdentifier<Link> iiOtnTopologyLink = InstanceIdentifier.builder(Networks.class)
 574                     .child(Network.class, new NetworkKey(new NetworkId(NetworkUtils.OTN_NETWORK_ID)))
 575                     .augmentation(Network1.class)
 576                     .child(Link.class, new LinkKey(new LinkId(otnTopologyLink.getLinkId().getValue())))
 577                     .build();
 578                 networkTransactionService.merge(LogicalDatastoreType.CONFIGURATION, iiOtnTopologyLink, otnTopologyLink);
 579             }
 580         }
 581         if (otnTopologyShard.getTps() != null) {
 582             for (TerminationPoint otnTopologyTp : otnTopologyShard.getTps()) {
 583                 LOG.info("updating otn nodes TP {} in otn-topology", otnTopologyTp.getTpId().getValue());
 584                 List<SupportingTerminationPoint> supportingTerminationPoint =
 585                     new ArrayList<>(otnTopologyTp.nonnullSupportingTerminationPoint().values());
 586                 InstanceIdentifier<TerminationPoint> iiOtnTopologyTp = InstanceIdentifier.builder(Networks.class)
 587                     .child(Network.class, new NetworkKey(new NetworkId(NetworkUtils.OTN_NETWORK_ID)))
 588                     .child(Node.class, new NodeKey(supportingTerminationPoint.get(0).getNodeRef()))
 589                     .augmentation(Node1.class)
 590                     .child(TerminationPoint.class, new TerminationPointKey(new TpId(otnTopologyTp.getTpId()
 591                         .getValue())))
 592                     .build();
 593                 if (isDeletion) {
 594                     networkTransactionService.merge(LogicalDatastoreType.CONFIGURATION, iiOtnTopologyTp, otnTopologyTp);
 595                 } else {
 596                     networkTransactionService.put(LogicalDatastoreType.CONFIGURATION, iiOtnTopologyTp, otnTopologyTp);
 597                 }
 598             }
 599         }
 600         try {
 601             networkTransactionService.commit().get();
 602         } catch (InterruptedException | ExecutionException e) {
 603             LOG.error("Error updating OTN links in otn-topology", e);
 604         }
 605     }
 606
 607     private List<Link> getOtnLinks(List<LinkId> linkIds) {
 608         List<Link> links = new ArrayList<>();
 609         for (LinkId linkId : linkIds) {
 610             InstanceIdentifier<Link> iiLink = InstanceIdentifier.builder(Networks.class)
 611                 .child(Network.class, new NetworkKey(new NetworkId(NetworkUtils.OTN_NETWORK_ID)))
 612                 .augmentation(Network1.class)
 613                 .child(Link.class, new LinkKey(linkId))
 614                 .build();
 615             ListenableFuture<Optional<Link>> linkOptLf = networkTransactionService
 616                 .read(LogicalDatastoreType.CONFIGURATION, iiLink);
 617             if (linkOptLf.isDone()) {
 618                 try {
 619                     if (linkOptLf.get().isPresent()) {
 620                         links.add(linkOptLf.get().get());
 621                     }
 622                 } catch (InterruptedException | ExecutionException e) {
 623                     LOG.error("Error retreiving OTN links from otn-topology", e);
 624                 }
 625             } else {
 626                 LOG.error("Error retreiving link {} from otn-topology", linkId.getValue());
 627             }
 628         }
 629         return links;
 630     }
 631
 632     private boolean checkLinks(List<Link> links) {
 633         if (links.isEmpty()) {
 634             return false;
 635         }
 636         for (Link link : links) {
 637             if (link.augmentation(Link1.class) != null
 638                     && !link.augmentation(Link1.class).getUsedBandwidth().equals(Uint32.valueOf(0))) {
 639                 return false;
 640             }
 641         }
 642         return true;
 643     }
 644
 645     private boolean checkTerminationPoints(List<TerminationPoint> tps) {
 646         if (tps.isEmpty()) {
 647             return false;
 648         }
 649         for (TerminationPoint tp : tps) {
 650             if (tp.augmentation(TerminationPoint1.class) != null && tp.augmentation(TerminationPoint1.class)
 651                     .getXpdrTpPortConnectionAttributes().getTsPool() != null && tp.augmentation(TerminationPoint1.class)
 652                     .getXpdrTpPortConnectionAttributes().getTsPool().size() != 80) {
 653                 return false;
 654             }
 655         }
 656         return true;
 657     }
 658
 659     private List<TerminationPoint> getOtnNodeTps(String nodeTopoA, String tpA, String nodeTopoZ, String tpZ) {
 660         List<TerminationPoint> tps = new ArrayList<>();
 661         InstanceIdentifier<TerminationPoint> iiTpA = InstanceIdentifier.builder(Networks.class)
 662             .child(Network.class, new NetworkKey(new NetworkId(NetworkUtils.OTN_NETWORK_ID)))
 663             .child(Node.class, new NodeKey(new NodeId(nodeTopoA)))
 664             .augmentation(Node1.class)
 665             .child(TerminationPoint.class, new TerminationPointKey(new TpId(tpA)))
 666             .build();
 667         Optional<TerminationPoint> tpAOpt = Optional.empty();
 668         InstanceIdentifier<TerminationPoint> iiTpZ = InstanceIdentifier.builder(Networks.class)
 669             .child(Network.class, new NetworkKey(new NetworkId(NetworkUtils.OTN_NETWORK_ID)))
 670             .child(Node.class, new NodeKey(new NodeId(nodeTopoZ)))
 671             .augmentation(Node1.class)
 672             .child(TerminationPoint.class, new TerminationPointKey(new TpId(tpZ)))
 673             .build();
 674         Optional<TerminationPoint> tpZOpt = Optional.empty();
 675
 676         if (networkTransactionService.read(LogicalDatastoreType.CONFIGURATION, iiTpA).isDone()
 677                 && networkTransactionService.read(LogicalDatastoreType.CONFIGURATION, iiTpZ).isDone()) {
 678             try {
 679                 tpAOpt = networkTransactionService.read(LogicalDatastoreType.CONFIGURATION, iiTpA).get();
 680                 tpZOpt = networkTransactionService.read(LogicalDatastoreType.CONFIGURATION, iiTpZ).get();
 681             } catch (InterruptedException | ExecutionException e) {
 682                 LOG.error("Error retreiving tp {} of node {} or tp {} from node {} from otn-topology", tpA, nodeTopoA,
 683                     tpZ, nodeTopoZ, e);
 684             }
 685         } else {
 686             LOG.error("error getting node termination points from the datastore");
 687         }
 688
 689         if (tpAOpt.isPresent() && tpZOpt.isPresent()) {
 690             tps.add(tpAOpt.get());
 691             tps.add(tpZOpt.get());
 692         }
 693         return tps;
 694     }
 695
 696     private List<TerminationPoint> getOtnNodeTps(List<LinkTp> linkTerminations) {
 697         List<TerminationPoint> tps = new ArrayList<>();
 698         for (LinkTp linkTp : linkTerminations) {
 699             String tp = linkTp.getTpId();
 700             String nodeId = new StringBuilder(linkTp.getNodeId()).append("-")
 701                 .append(tp.split("-")[0]).toString();
 702             InstanceIdentifier<TerminationPoint> iiTp = InstanceIdentifier.builder(Networks.class)
 703                 .child(Network.class, new NetworkKey(new NetworkId(NetworkUtils.OTN_NETWORK_ID)))
 704                 .child(Node.class, new NodeKey(new NodeId(nodeId)))
 705                 .augmentation(Node1.class)
 706                 .child(TerminationPoint.class, new TerminationPointKey(new TpId(tp)))
 707                 .build();
 708             Optional<TerminationPoint> tpOpt;
 709             if (networkTransactionService.read(LogicalDatastoreType.CONFIGURATION, iiTp).isDone()) {
 710                 try {
 711                     tpOpt = networkTransactionService.read(LogicalDatastoreType.CONFIGURATION, iiTp).get();
 712                     if (tpOpt.isPresent()) {
 713                         tps.add(tpOpt.get());
 714                     }
 715                 } catch (InterruptedException | ExecutionException e) {
 716                     LOG.error("Error retreiving tp {} of node {} from otn-topology", tp, nodeId, e);
 717                 }
 718             } else {
 719                 LOG.error("error getting node termination points from the datastore");
 720             }
 721         }
 722         if (tps.isEmpty()) {
 723             LOG.warn("returning null");
 724             return null;
 725         } else {
 726             LOG.info("returning tps = {}", tps.toString());
 727             return tps;
 728         }
 729     }
 730
 731     private void deleteLinks(List<Link> links) {
 732         for (Link otnTopologyLink : links) {
 733             LOG.info("deleting link {} from {}", otnTopologyLink.getLinkId().getValue(),
 734                 NetworkUtils.OVERLAY_NETWORK_ID);
 735             InstanceIdentifier<Link> iiOtnTopologyLink = InstanceIdentifier.builder(Networks.class)
 736                 .child(Network.class, new NetworkKey(new NetworkId(NetworkUtils.OTN_NETWORK_ID)))
 737                 .augmentation(Network1.class)
 738                 .child(Link.class, otnTopologyLink.key())
 739                 .build();
 740             networkTransactionService.delete(LogicalDatastoreType.CONFIGURATION, iiOtnTopologyLink);
 741         }
 742         try {
 743             networkTransactionService.commit().get();
 744         } catch (InterruptedException | ExecutionException e) {
 745             LOG.error("Error deleting OTN links from otn-topology", e);
 746         }
 747     }
 748
 749     private List<Link> getSupportingOdu4Links(List<LinkTp> nodesTopoTps, Uint32 serviceRate) {
 750         InstanceIdentifier<Network1> iiOtnTopologyLinks = InstanceIdentifier.builder(Networks.class)
 751             .child(Network.class, new NetworkKey(new NetworkId(NetworkUtils.OTN_NETWORK_ID)))
 752             .augmentation(Network1.class)
 753             .build();
 754         ListenableFuture<Optional<Network1>> netw1Fl = networkTransactionService
 755             .read(LogicalDatastoreType.CONFIGURATION, iiOtnTopologyLinks);
 756         Optional<Network1> netw1Opt = Optional.empty();
 757         if (netw1Fl.isDone()) {
 758             try {
 759                 netw1Opt = netw1Fl.get();
 760             } catch (InterruptedException | ExecutionException e) {
 761                 LOG.error("Error retreiving list of links from otn-topology", e);
 762             }
 763         }
 764         List<Link> odu4links = null;
 765         if (netw1Opt.isPresent() && netw1Opt.get().getLink() != null) {
 766             odu4links = netw1Opt
 767                 .get()
 768                 .nonnullLink().values()
 769                 .stream().filter(lk -> lk.getLinkId().getValue()
 770                     .startsWith(Uint32.valueOf(100).equals(serviceRate) ? "ODUC4" : "ODTU4"))
 771                 .collect(Collectors.toList());
 772         }
 773         if (odu4links == null) {
 774             return null;
 775         }
 776         List<Link> links = new ArrayList<>();
 777         for (LinkTp linkTp : nodesTopoTps) {
 778             String tp = linkTp.getTpId();
 779             String nodeId = new StringBuilder(linkTp.getNodeId()).append("-")
 780                 .append(tp.split("-")[0]).toString();
 781             Link slink = odu4links.stream().filter(lk -> lk.getSource().getSourceNode().getValue()
 782                 .equals(nodeId) && lk.getSource().getSourceTp().getValue().equals(tp)).findFirst().get();
 783             if (!links.contains(slink)) {
 784                 links.add(slink);
 785             }
 786             Link dlink = odu4links.stream().filter(lk -> lk.getDestination().getDestNode().getValue()
 787                 .equals(nodeId) && lk.getDestination().getDestTp().getValue().equals(tp)).findFirst().get();
 788             if (!links.contains(dlink)) {
 789                 links.add(dlink);
 790             }
 791         }
 792         LOG.debug("odu4oduC4links = {}", links);
 793         return links;
 794     }
 795
 796     private void createOpenRoadmOtnNode(String nodeId) {
 797         TopologyShard otnTopologyShard = OpenRoadmOtnTopology.createTopologyShard(portMapping.getNode(nodeId));
 798         if (otnTopologyShard != null) {
 799             this.otnTopologyShardMountedDevice.put(nodeId, otnTopologyShard);
 800             for (Node otnTopologyNode : otnTopologyShard.getNodes()) {
 801                 LOG.info("creating otn node {} in {}", otnTopologyNode.getNodeId().getValue(),
 802                     NetworkUtils.OTN_NETWORK_ID);
 803                 InstanceIdentifier<Node> iiOtnTopologyNode = InstanceIdentifier.builder(Networks.class)
 804                     .child(Network.class, new NetworkKey(new NetworkId(NetworkUtils.OTN_NETWORK_ID)))
 805                     .child(Node.class, otnTopologyNode.key())
 806                     .build();
 807                 networkTransactionService.merge(LogicalDatastoreType.CONFIGURATION, iiOtnTopologyNode, otnTopologyNode);
 808             }
 809             for (Link otnTopologyLink : otnTopologyShard.getLinks()) {
 810                 LOG.info("creating otn link {} in {}", otnTopologyLink.getLinkId().getValue(),
 811                     NetworkUtils.OVERLAY_NETWORK_ID);
 812                 InstanceIdentifier<Link> iiOtnTopologyLink = InstanceIdentifier.builder(Networks.class)
 813                     .child(Network.class, new NetworkKey(new NetworkId(NetworkUtils.OTN_NETWORK_ID)))
 814                     .augmentation(Network1.class)
 815                     .child(Link.class, otnTopologyLink.key())
 816                     .build();
 817                 networkTransactionService.merge(LogicalDatastoreType.CONFIGURATION, iiOtnTopologyLink, otnTopologyLink);
 818             }
 819         } else {
 820             LOG.error("Unable to create OTN topology shard for node {}!", nodeId);
 821         }
 822     }
 823
 824     @SuppressFBWarnings(
 825             value = "UPM_UNCALLED_PRIVATE_METHOD",
 826             justification = "false positive, this method is used by public updateOpenRoadmNetworkTopology")
 827     private void sendNotification() {
 828         if (topologyChanges.isEmpty()) {
 829             LOG.warn("Empty Topology Change List. No updates in topology");
 830             return;
 831         }
 832         this.notification = new TopologyUpdateResultBuilder()
 833             .setTopologyChanges(topologyChanges)
 834             .build();
 835         try {
 836             notificationPublishService.putNotification(this.notification);
 837         } catch (InterruptedException e) {
 838             LOG.error("Notification offer rejected. Error={}", e.getMessage());
 839         }
 840     }
 841 }