pce/src/main/java/org/opendaylight/transportpce/pce/gnpy/GnpyTopoImpl.java

   1 /*
   2  * Copyright © 2019 Orange, 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.transportpce.pce.gnpy;
  10
  11 import java.math.BigDecimal;
  12 import java.util.ArrayList;
  13 import java.util.Collection;
  14 import java.util.HashMap;
  15 import java.util.List;
  16 import java.util.Map;
  17 import java.util.concurrent.ExecutionException;
  18 import java.util.stream.IntStream;
  19 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  20 import org.opendaylight.transportpce.common.NetworkUtils;
  21 import org.opendaylight.transportpce.common.network.NetworkTransactionService;
  22 import org.opendaylight.yang.gen.v1.gnpy.gnpy.network.topology.rev220221.Coordinate;
  23 import org.opendaylight.yang.gen.v1.gnpy.gnpy.network.topology.rev220221.Km;
  24 import org.opendaylight.yang.gen.v1.gnpy.gnpy.network.topology.rev220221.edfa.params.Operational;
  25 import org.opendaylight.yang.gen.v1.gnpy.gnpy.network.topology.rev220221.edfa.params.OperationalBuilder;
  26 import org.opendaylight.yang.gen.v1.gnpy.gnpy.network.topology.rev220221.element.type.choice.element.type.Edfa;
  27 import org.opendaylight.yang.gen.v1.gnpy.gnpy.network.topology.rev220221.element.type.choice.element.type.EdfaBuilder;
  28 import org.opendaylight.yang.gen.v1.gnpy.gnpy.network.topology.rev220221.element.type.choice.element.type.FiberRoadmBuilder;
  29 import org.opendaylight.yang.gen.v1.gnpy.gnpy.network.topology.rev220221.element.type.choice.element.type.Transceiver;
  30 import org.opendaylight.yang.gen.v1.gnpy.gnpy.network.topology.rev220221.element.type.choice.element.type.TransceiverBuilder;
  31 import org.opendaylight.yang.gen.v1.gnpy.gnpy.network.topology.rev220221.element.type.choice.element.type.fiberroadm.Params;
  32 import org.opendaylight.yang.gen.v1.gnpy.gnpy.network.topology.rev220221.element.type.choice.element.type.fiberroadm.ParamsBuilder;
  33 import org.opendaylight.yang.gen.v1.gnpy.gnpy.network.topology.rev220221.element.type.choice.element.type.fiberroadm.params.fiberroadmfused.Fiber;
  34 import org.opendaylight.yang.gen.v1.gnpy.gnpy.network.topology.rev220221.element.type.choice.element.type.fiberroadm.params.fiberroadmfused.FiberBuilder;
  35 import org.opendaylight.yang.gen.v1.gnpy.gnpy.network.topology.rev220221.element.type.choice.element.type.fiberroadm.params.fiberroadmfused.Roadm;
  36 import org.opendaylight.yang.gen.v1.gnpy.gnpy.network.topology.rev220221.element.type.choice.element.type.fiberroadm.params.fiberroadmfused.RoadmBuilder;
  37 import org.opendaylight.yang.gen.v1.gnpy.gnpy.network.topology.rev220221.location.attributes.Location;
  38 import org.opendaylight.yang.gen.v1.gnpy.gnpy.network.topology.rev220221.location.attributes.LocationBuilder;
  39 import org.opendaylight.yang.gen.v1.gnpy.gnpy.network.topology.rev220221.topo.Connections;
  40 import org.opendaylight.yang.gen.v1.gnpy.gnpy.network.topology.rev220221.topo.ConnectionsBuilder;
  41 import org.opendaylight.yang.gen.v1.gnpy.gnpy.network.topology.rev220221.topo.Elements;
  42 import org.opendaylight.yang.gen.v1.gnpy.gnpy.network.topology.rev220221.topo.ElementsBuilder;
  43 import org.opendaylight.yang.gen.v1.gnpy.gnpy.network.topology.rev220221.topo.ElementsKey;
  44 import org.opendaylight.yang.gen.v1.gnpy.gnpy.network.topology.rev220221.topo.elements.Metadata;
  45 import org.opendaylight.yang.gen.v1.gnpy.gnpy.network.topology.rev220221.topo.elements.MetadataBuilder;
  46 import org.opendaylight.yang.gen.v1.http.org.openroadm.common.network.rev211210.Link1;
  47 import org.opendaylight.yang.gen.v1.http.org.openroadm.link.rev211210.SpanAttributes;
  48 import org.opendaylight.yang.gen.v1.http.org.openroadm.link.rev211210.amplified.link.attributes.AmplifiedLink;
  49 import org.opendaylight.yang.gen.v1.http.org.openroadm.link.rev211210.amplified.link.attributes.amplified.link.section.element.section.element.Span;
  50 import org.opendaylight.yang.gen.v1.http.org.openroadm.link.rev211210.amplified.link.attributes.amplified.link.section.element.section.element.ila.Ila;
  51 import org.opendaylight.yang.gen.v1.http.org.openroadm.network.rev211210.Node1;
  52 import org.opendaylight.yang.gen.v1.http.org.openroadm.network.topology.rev211210.networks.network.link.OMSAttributes;
  53 import org.opendaylight.yang.gen.v1.http.org.openroadm.network.types.rev211210.OpenroadmLinkType;
  54 import org.opendaylight.yang.gen.v1.http.org.openroadm.network.types.rev211210.link.concatenation.LinkConcatenation;
  55 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.rev180226.NetworkId;
  56 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.rev180226.Networks;
  57 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.rev180226.networks.Network;
  58 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.rev180226.networks.NetworkKey;
  59 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.rev180226.networks.network.Node;
  60 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.rev180226.networks.network.node.SupportingNode;
  61 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.topology.rev180226.Network1;
  62 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.topology.rev180226.networks.network.Link;
  63 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  64 import org.slf4j.Logger;
  65 import org.slf4j.LoggerFactory;
  66
  67 /**
  68  * Class to create the topology corresponding to GNPy requirements.
  69  *
  70  * @author Ahmed Triki ( ahmed.triki@orange.com )
  71  *
  72  */
  73
  74 public class GnpyTopoImpl {
  75     private static final Logger LOG = LoggerFactory.getLogger(GnpyTopoImpl.class);
  76     private final NetworkTransactionService networkTransactionService;
  77     //List of elements
  78     private Map<ElementsKey, Elements> elements = new HashMap<>();
  79     private List<Connections> connections = new ArrayList<>();
  80     private List<String> elementsList = new ArrayList<>();
  81     //Mapping elements
  82     //Mapping between the ord-topo and ord-ntw node
  83     private Map<String, String> mapDisgNodeRefNode = new HashMap<>();
  84     //Mapping between the ROADM-ROADM linkId/secElement and the linkId
  85     private Map<String, List<String>> mapLinkFiber = new HashMap<>();
  86     //List of Xponders
  87     private List<String> trxList = new ArrayList<>();
  88     private static final double LATITUDE = 0;
  89     private static final double LONGITUTE = 0;
  90     private static final String REGION = "N/A";
  91     private static final String CITY = "N/A";
  92     private static final int CONVERT_KM_M = 1000;
  93     private static final double TARGET_PCH_OUT_DB = -20;
  94
  95     /*
  96      * Construct the ExtractTopoDataStoreImpl.
  97      */
  98     public GnpyTopoImpl(final NetworkTransactionService networkTransactionService) throws GnpyException {
  99         this.networkTransactionService = networkTransactionService;
 100         extractTopo();
 101     }
 102
 103     /*
 104      * extract the topology
 105      *
 106      */
 107     private void extractTopo() throws GnpyException {
 108         // Define the instance identifier of the OpenRoadm topology
 109         InstanceIdentifier<Network> insIdOpenRoadmTopo = InstanceIdentifier
 110                 .builder(Networks.class)
 111                 .child(Network.class, new NetworkKey(new NetworkId(NetworkUtils.OVERLAY_NETWORK_ID))).build();
 112         // Define the instance identifier of the OpenRoadm network
 113         InstanceIdentifier<Network> insIdrOpenRoadmNet = InstanceIdentifier
 114                 .builder(Networks.class)
 115                 .child(Network.class, new NetworkKey(new NetworkId(NetworkUtils.UNDERLAY_NETWORK_ID))).build();
 116         try {
 117             // Initialize the reading of the networkTransactionService
 118             // read the configuration part of the data broker that concerns the openRoadm topology and get all the nodes
 119             java.util.Optional<Network> openRoadmTopo = this.networkTransactionService
 120                     .read(LogicalDatastoreType.CONFIGURATION, insIdOpenRoadmTopo).get();
 121             java.util.Optional<Network> openRoadmNet = this.networkTransactionService
 122                     .read(LogicalDatastoreType.CONFIGURATION, insIdrOpenRoadmNet).get();
 123             if (openRoadmNet.isPresent() && openRoadmTopo.isPresent()) {
 124                 extractElements(openRoadmTopo,openRoadmNet);
 125                 extractConnections(openRoadmTopo);
 126                 LOG.debug("In GnpyTopoImpl : elements and connections are well extracted");
 127             }
 128             else {
 129                 throw new GnpyException(
 130                     "In GnpyTopoImpl : openroadm topology network or openroadm network are not well mounted ...");
 131             }
 132         } catch (InterruptedException | ExecutionException e) {
 133             this.networkTransactionService.close();
 134             throw new GnpyException("In gnpyTopoImpl: error in reading the topology", e);
 135         }
 136         this.networkTransactionService.close();
 137     }
 138
 139     private void extractElements(java.util.Optional<Network> openRoadmTopo,
 140             java.util.Optional<Network> openRoadmNet) throws GnpyException {
 141         if ((!openRoadmNet.isPresent()) || (!openRoadmTopo.isPresent())) {
 142             throw new GnpyException("In gnpyTopoImpl: openRoadmNet or openRoadmTopo is not present");
 143         }
 144         // Create the list of nodes
 145         Collection<Node> openRoadmNetNodeList = openRoadmNet.get().nonnullNode().values();
 146         Collection<Node> openRoadmTopoNodeList = openRoadmTopo.get().nonnullNode().values();
 147
 148         if (openRoadmTopoNodeList.isEmpty() || openRoadmNetNodeList.isEmpty()) {
 149             throw new GnpyException("In gnpyTopoImpl: no nodes in the openradm topology or openroadm network");
 150         }
 151         // Create elements
 152         for (Node openRoadmTopoNode : openRoadmTopoNodeList) {
 153             // Retrieve the supporting node and the type of the node in openRoadm network
 154             Collection<SupportingNode> supportingNodeList = openRoadmTopoNode.nonnullSupportingNode().values();
 155
 156             for (SupportingNode supportingNode : supportingNodeList) {
 157                 if (!supportingNode.getNetworkRef().getValue().equals("openroadm-network")) {
 158                     continue;
 159                 }
 160                 String nodeRef = supportingNode.getNodeRef().getValue();
 161                 if (nodeRef == null) {
 162                     throw new GnpyException("In gnpyTopoImpl: nodeRef is null");
 163                 }
 164                 // Retrieve the mapping between the openRoadm topology and openRoadm network
 165                 mapDisgNodeRefNode.put(openRoadmTopoNode.getNodeId().getValue(), nodeRef);
 166                 Node1 openRoadmNetNode1 = null;
 167                 org.opendaylight.yang.gen.v1.http.org.openroadm.common.network.rev211210
 168                     .Node1 commonNetworkNode1 = null;
 169                 for (Node openRoadmNetNode : openRoadmNetNodeList) {
 170                     if (openRoadmNetNode.getNodeId().getValue().equals(nodeRef)) {
 171                         openRoadmNetNode1 = openRoadmNetNode.augmentation(Node1.class);
 172                         commonNetworkNode1 = openRoadmNetNode.augmentation(org.opendaylight.yang.gen.v1
 173                             .http.org.openroadm.common.network.rev211210.Node1.class);
 174                         break;
 175                     }
 176                 }
 177                 if (commonNetworkNode1 == null) {
 178                     throw new GnpyException(String.format("In gnpyTopoImpl: the node type of %s is null",nodeRef));
 179                 }
 180                 if (commonNetworkNode1.getNodeType().getName().equals("ROADM")) {
 181                     if (!elementsList.contains(nodeRef)) {
 182                         Elements element = createElementsRoadm(LATITUDE, LONGITUTE, nodeRef,
 183                                 openRoadmNetNode1.getShelf(),TARGET_PCH_OUT_DB, nodeRef);
 184                         this.elements.put(element.key(),element);
 185                         elementsList.add(nodeRef);
 186                     }
 187                 } else if (commonNetworkNode1.getNodeType().getName().equals("XPONDER")) {
 188                     if (!elementsList.contains(nodeRef)) {
 189                         Elements element = createElementsTransceiver(LATITUDE, LONGITUTE, nodeRef,
 190                                 openRoadmNetNode1.getShelf(), nodeRef);
 191                         this.elements.put(element.key(),element);
 192                         elementsList.add(nodeRef);
 193                         trxList.add(nodeRef);
 194                     }
 195                 } else {
 196                     throw new GnpyException("In gnpyTopoImpl: the type is not implemented");
 197                 }
 198             }
 199         }
 200     }
 201
 202     private void extractConnections(java.util.Optional<Network> openRoadmTopo) throws GnpyException {
 203         // Create the list of connections
 204         if (!openRoadmTopo.isPresent()) {
 205             throw new GnpyException("In gnpyTopoImpl: openroadmTopo is not present");
 206         }
 207         Network1 nw1 = openRoadmTopo.get().augmentation(Network1.class);
 208         Collection<Link> linksList = nw1.nonnullLink().values();
 209         // 1:EXPRESS-LINK    2:ADD-LINK       3:DROP-LINK
 210         // 4:ROADM-To-ROADM  5:XPONDER-INPUT  6:XPONDER-OUTPUT
 211         int[] externalLink = {OpenroadmLinkType.ROADMTOROADM.getIntValue(),OpenroadmLinkType.XPONDERINPUT.getIntValue(),
 212             OpenroadmLinkType.XPONDEROUTPUT.getIntValue()};
 213
 214         if (linksList.isEmpty()) {
 215             throw new GnpyException("In gnpyTopoImpl: no links in the network");
 216         }
 217
 218         for (Link link : linksList) {
 219             Link1 link1 = link.augmentation(Link1.class);
 220             org.opendaylight.yang.gen.v1.http.org.openroadm.network.topology.rev211210
 221                 .Link1 openroadmNetworkLink1 = link.augmentation(org.opendaylight.yang.gen.v1.http
 222                         .org.openroadm.network.topology.rev211210.Link1.class);
 223             if (link1.getLinkType() == null) {
 224                 throw new GnpyException("In gnpyTopoImpl: the link type is null");
 225             }
 226             int linkType = link1.getLinkType().getIntValue();
 227             if (! IntStream.of(externalLink).anyMatch(x -> x == linkType)) {
 228                 continue;
 229             }
 230
 231             String srcId = mapDisgNodeRefNode.get(link.getSource().getSourceNode().getValue());
 232             String linkId = link.getLinkId().getValue();
 233             String destId = null;
 234             if (linkType == OpenroadmLinkType.ROADMTOROADM.getIntValue()) {
 235                 OMSAttributes omsAttributes = openroadmNetworkLink1.getOMSAttributes();
 236                 if (omsAttributes == null) {
 237                     throw new GnpyException(String.format(
 238                         "In gnpyTopoImpl: OMS attributes do not exit for ROADM to ROADM link: %s",linkId));
 239                 }
 240                 //Case of amplified link
 241                 if (omsAttributes.getAmplifiedLink() != null) {
 242                     srcId = extractAmplifiedLink(omsAttributes, linkId, srcId);
 243                 }
 244                 //Case of one span link
 245                 if (omsAttributes.getSpan() != null) {
 246                     srcId = extractSpanLink(omsAttributes, linkId, srcId);
 247                 }
 248             }
 249             // Create a new link
 250             destId = mapDisgNodeRefNode.get(link.getDestination().getDestNode().getValue());
 251             createNewConnection(srcId,destId);
 252         }
 253     }
 254
 255     private String extractAmplifiedLink(OMSAttributes omsAttributes, String linkId, String srcId)
 256         throws GnpyException {
 257
 258         List<AmplifiedLink> amplifiedLinkList = new ArrayList<>(omsAttributes.getAmplifiedLink()
 259             .nonnullAmplifiedLink().values());
 260         String destId = null;
 261         if (!amplifiedLinkList.isEmpty()) {
 262             for (AmplifiedLink amplifiedLink: amplifiedLinkList) {
 263                 String secElt = amplifiedLink .getSectionEltNumber().toString();
 264                 //Case of ILA
 265                 if (amplifiedLink.getSectionElement().getSectionElement() instanceof Ila) {
 266                     Ila ila = (Ila) amplifiedLink.getSectionElement().getSectionElement();
 267                     destId = extractILAFromAmpLink(ila);
 268                 }
 269                 //Case of Span
 270                 if (amplifiedLink.getSectionElement().getSectionElement() instanceof Span) {
 271                     Span span = (Span) amplifiedLink.getSectionElement().getSectionElement();
 272                     destId = extractSpan(span.getSpan(), linkId, secElt);
 273                 }
 274                 // Create a new link
 275                 if (createNewConnection(srcId,destId)) {
 276                     srcId = destId;
 277                 }
 278             }
 279         }
 280         return srcId;
 281     }
 282
 283     private String extractSpanLink(OMSAttributes omsAttributes, String linkId, String srcId)
 284         throws GnpyException {
 285
 286         SpanAttributes span = omsAttributes.getSpan();
 287         String destId = extractSpan(span, linkId, linkId);
 288         if (createNewConnection(srcId, destId)) {
 289             return destId;
 290         }
 291         return srcId;
 292     }
 293
 294     private String extractILAFromAmpLink(Ila ila) throws GnpyException {
 295         String nodeId = ila.getNodeId().getValue();
 296         mapDisgNodeRefNode.put(nodeId, nodeId);
 297         Elements element = createElementsEdfa(LATITUDE, LONGITUTE, REGION, CITY,
 298                 ila.getGain().getValue(), ila.getTilt().getValue(),
 299                 ila.getOutVoaAtt().getValue(), "std_medium_gain",
 300                 nodeId);
 301         this.elements.put(element.key(),element);
 302         return nodeId;
 303     }
 304
 305     private String extractSpan(SpanAttributes span, String linkId, String subLinkId) throws GnpyException {
 306         if (!mapLinkFiber.containsKey(linkId)) {
 307             mapLinkFiber.put(linkId, new ArrayList<>());
 308         }
 309         mapLinkFiber.get(linkId).add(subLinkId);
 310         //mapFiberIp.put(subLinkId, ipFiber);
 311         //fiberId = incrementIdentifier(fiberId);
 312         double attIn = 0;
 313         double connIn = 0;
 314         double connOut = 0;
 315         String typeVariety = "SSMF";
 316         double length = 0;
 317         // Compute the length of the link
 318         for (LinkConcatenation linkConcatenation : span.nonnullLinkConcatenation().values()) {
 319             double srlgLength = linkConcatenation.getSRLGLength().doubleValue();
 320             //convert to kilometer
 321             length += srlgLength / CONVERT_KM_M;
 322         }
 323         if (length == 0) {
 324             throw new GnpyException(String.format(
 325                 "In gnpyTopoImpl: length of the link %s is equal to zero",linkId));
 326         }
 327         double lossCoef = span.getSpanlossCurrent().getValue().doubleValue() / length;
 328         Elements element = createElementsFiber(LATITUDE, LONGITUTE, REGION, CITY,
 329                 subLinkId, length, attIn, lossCoef, connIn, connOut, typeVariety);
 330         this.elements.put(element.key(),element);
 331         return subLinkId;
 332     }
 333
 334     /*
 335      * Method to create Fiber
 336      */
 337     private Elements createElementsFiber(double latitude, double longitude, String region, String city, String uidFiber,
 338             double length, double attIn, double lossCoef, double connIn, double connOut, String typeVariety) {
 339         // Create an amplifier after the ROADM
 340         Coordinate c1 = new Coordinate(BigDecimal.valueOf(latitude));
 341         Coordinate c2 = new Coordinate(BigDecimal.valueOf(longitude));
 342         Location location1 = new LocationBuilder().setRegion(region).setCity(city).setLatitude(c1).setLongitude(c2)
 343                 .build();
 344         Metadata metadata1 = new MetadataBuilder().setLocation(location1).build();
 345         Fiber fiber = new FiberBuilder().setLength(BigDecimal.valueOf(length)).setLengthUnits(Km.class)
 346                 .setAttIn(BigDecimal.valueOf(attIn)).setLossCoef(BigDecimal.valueOf(lossCoef))
 347                 .setConIn(BigDecimal.valueOf(connIn))
 348                 .setConOut(BigDecimal.valueOf(connOut)).build();
 349         Params params1 = new ParamsBuilder().setFiberroadmfused(fiber).build();
 350         return new ElementsBuilder().setUid(uidFiber)
 351                 .setType(org.opendaylight.yang.gen.v1.gnpy.gnpy.network.topology.rev220221.Fiber.class)
 352                 .setTypeVariety(typeVariety).setMetadata(metadata1)
 353                 .setElementType(new FiberRoadmBuilder().setParams(params1).build()).build();
 354     }
 355
 356     /*
 357      * Method to create EDFA
 358      */
 359     private Elements createElementsEdfa(double latitude, double longitude, String region, String city,
 360             BigDecimal gainTarget, BigDecimal tiltTarget, BigDecimal outVoa, String typeVariety, String uidEdfa) {
 361         // Create an amplifier after the ROADM
 362         Coordinate c1 = new Coordinate(BigDecimal.valueOf(latitude));
 363         Coordinate c2 = new Coordinate(BigDecimal.valueOf(longitude));
 364         Location location1 = new LocationBuilder().setRegion(region).setCity(city).setLatitude(c1).setLongitude(c2)
 365                 .build();
 366         Metadata metadata1 = new MetadataBuilder().setLocation(location1).build();
 367         Operational operational = new OperationalBuilder().setGainTarget(gainTarget).setTiltTarget(tiltTarget)
 368                 .setOutVoa(outVoa).build();
 369         Edfa edfa = new EdfaBuilder()
 370                 .setOperational(operational).build();
 371         return new ElementsBuilder().setUid(uidEdfa)
 372                 .setType(org.opendaylight.yang.gen.v1.gnpy.gnpy.network.topology.rev220221.Edfa.class)
 373                 .setMetadata(metadata1).setElementType(edfa).setTypeVariety(typeVariety).build();
 374     }
 375
 376     /*
 377      * Method to create ROADM
 378      */
 379     private Elements createElementsRoadm(double latitude, double longitude, String region, String city,
 380             double targetPchOutDb, String uidRoadm) {
 381         Coordinate c1 = new Coordinate(BigDecimal.valueOf(latitude));
 382         Coordinate c2 = new Coordinate(BigDecimal.valueOf(longitude));
 383         Location location1 = new LocationBuilder().setRegion(region).setCity(city).setLatitude(c1).setLongitude(c2)
 384                 .build();
 385         Metadata metadata1 = new MetadataBuilder().setLocation(location1).build();
 386         Roadm roadm = new RoadmBuilder().setTargetPchOutDb(BigDecimal.valueOf(targetPchOutDb)).build();
 387         Params params1 = new ParamsBuilder().setFiberroadmfused(roadm).build();
 388         return new ElementsBuilder().setUid(uidRoadm)
 389                 .setType(org.opendaylight.yang.gen.v1.gnpy.gnpy.network.topology.rev220221.Roadm.class)
 390                 .setMetadata(metadata1).setElementType(new FiberRoadmBuilder().setParams(params1).build()).build();
 391     }
 392
 393     /*
 394      * Method to create Transceiver
 395      */
 396     private Elements createElementsTransceiver(double latitude, double longitude, String region, String city,
 397             String uidTrans) {
 398         Coordinate c1 = new Coordinate(BigDecimal.valueOf(latitude));
 399         Coordinate c2 = new Coordinate(BigDecimal.valueOf(longitude));
 400         Location location1 = new LocationBuilder().setRegion(region).setCity(city).setLatitude(c1).setLongitude(c2)
 401                 .build();
 402         Metadata metadata1 = new MetadataBuilder().setLocation(location1).build();
 403         Transceiver transceiver = new TransceiverBuilder().build();
 404         return new ElementsBuilder().setUid(uidTrans)
 405                 .setType(org.opendaylight.yang.gen.v1.gnpy.gnpy.network.topology.rev220221.Transceiver.class)
 406                 .setMetadata(metadata1).setElementType(transceiver).build();
 407     }
 408
 409     /*
 410      * Method to create Connection
 411      */
 412     private boolean createNewConnection(String fromNode, String toNode) throws GnpyException {
 413         if (fromNode == null || toNode == null) {
 414             throw new GnpyException("create new connection : null node IpAddress");
 415         }
 416         if (fromNode.equals(toNode)) {
 417             return false;
 418         }
 419         Connections connection = new ConnectionsBuilder().setFromNode(fromNode).setToNode(toNode).build();
 420         this.connections.add(connection);
 421         return true;
 422     }
 423
 424     public Map<ElementsKey, Elements> getElements() {
 425         return elements;
 426     }
 427
 428     public void setElements(Map<ElementsKey, Elements> elements) {
 429         this.elements = elements;
 430     }
 431
 432     public List<Connections> getConnections() {
 433         return connections;
 434     }
 435
 436     public void setConnections(List<Connections> connections) {
 437         this.connections = connections;
 438     }
 439
 440     public List<String> getElementsList() {
 441         return elementsList;
 442     }
 443
 444     public void setElementsList(List<String> elementsList) {
 445         this.elementsList = elementsList;
 446     }
 447
 448     public Map<String, String> getMapDisgNodeRefNode() {
 449         return mapDisgNodeRefNode;
 450     }
 451
 452     public void setMapDisgNodeRefNode(Map<String, String> mapDisgNodeRefNode) {
 453         this.mapDisgNodeRefNode = mapDisgNodeRefNode;
 454     }
 455
 456     public Map<String, List<String>> getMapLinkFiber() {
 457         return mapLinkFiber;
 458     }
 459
 460     public void setMapLinkFiber(Map<String, List<String>> mapLinkFiber) {
 461         this.mapLinkFiber = mapLinkFiber;
 462     }
 463
 464     public List<String> getTrxList() {
 465         return trxList;
 466     }
 467
 468     public void setTrxList(List<String> trxList) {
 469         this.trxList = trxList;
 470     }
 471 }