renderer/src/main/java/org/opendaylight/transportpce/renderer/openroadminterface/OpenRoadmInterface221.java

   1 /*
   2  * Copyright © 2017 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
   9 package org.opendaylight.transportpce.renderer.openroadminterface;
  10
  11 import java.math.BigDecimal;
  12 import java.util.ArrayList;
  13 import java.util.List;
  14 import java.util.Optional;
  15
  16 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  17 import org.opendaylight.transportpce.common.StringConstants;
  18 import org.opendaylight.transportpce.common.Timeouts;
  19 import org.opendaylight.transportpce.common.device.DeviceTransactionManager;
  20 import org.opendaylight.transportpce.common.fixedflex.FixedFlexInterface;
  21 import org.opendaylight.transportpce.common.mapping.PortMapping;
  22 import org.opendaylight.transportpce.common.openroadminterfaces.OpenRoadmInterfaceException;
  23 import org.opendaylight.transportpce.common.openroadminterfaces.OpenRoadmInterfaces;
  24 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev170228.network.nodes.Mapping;
  25 import org.opendaylight.yang.gen.v1.http.org.openroadm.common.types.rev181019.FrequencyGHz;
  26 import org.opendaylight.yang.gen.v1.http.org.openroadm.common.types.rev181019.FrequencyTHz;
  27 import org.opendaylight.yang.gen.v1.http.org.openroadm.common.types.rev181019.PowerDBm;
  28 import org.opendaylight.yang.gen.v1.http.org.openroadm.common.types.rev181019.R100G;
  29 import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev181019.interfaces.grp.InterfaceBuilder;
  30 import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev181019.interfaces.grp.InterfaceKey;
  31 import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev181019.org.openroadm.device.container.OrgOpenroadmDevice;
  32 import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev181019.org.openroadm.device.container.org.openroadm.device.RoadmConnections;
  33 import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev181019.org.openroadm.device.container.org.openroadm.device.RoadmConnectionsKey;
  34 import org.opendaylight.yang.gen.v1.http.org.openroadm.equipment.states.types.rev171215.AdminStates;
  35 import org.opendaylight.yang.gen.v1.http.org.openroadm.ethernet.interfaces.rev181019.EthAttributes;
  36 import org.opendaylight.yang.gen.v1.http.org.openroadm.ethernet.interfaces.rev181019.Interface1;
  37 import org.opendaylight.yang.gen.v1.http.org.openroadm.ethernet.interfaces.rev181019.Interface1Builder;
  38 import org.opendaylight.yang.gen.v1.http.org.openroadm.ethernet.interfaces.rev181019.ethernet.container.EthernetBuilder;
  39 import org.opendaylight.yang.gen.v1.http.org.openroadm.interfaces.rev170626.EthernetCsmacd;
  40 import org.opendaylight.yang.gen.v1.http.org.openroadm.interfaces.rev170626.InterfaceType;
  41 import org.opendaylight.yang.gen.v1.http.org.openroadm.interfaces.rev170626.MediaChannelTrailTerminationPoint;
  42 import org.opendaylight.yang.gen.v1.http.org.openroadm.interfaces.rev170626.NetworkMediaChannelConnectionTerminationPoint;
  43 import org.opendaylight.yang.gen.v1.http.org.openroadm.interfaces.rev170626.OpenROADMOpticalMultiplex;
  44 import org.opendaylight.yang.gen.v1.http.org.openroadm.interfaces.rev170626.OpticalChannel;
  45 import org.opendaylight.yang.gen.v1.http.org.openroadm.interfaces.rev170626.OpticalTransport;
  46 import org.opendaylight.yang.gen.v1.http.org.openroadm.interfaces.rev170626.OtnOdu;
  47 import org.opendaylight.yang.gen.v1.http.org.openroadm.interfaces.rev170626.OtnOtu;
  48 import org.opendaylight.yang.gen.v1.http.org.openroadm.media.channel.interfaces.rev181019.mc.ttp.container.McTtpBuilder;
  49 import org.opendaylight.yang.gen.v1.http.org.openroadm.network.media.channel.interfaces.rev181019.nmc.ctp.container.NmcCtpBuilder;
  50 import org.opendaylight.yang.gen.v1.http.org.openroadm.optical.channel.interfaces.rev181019.och.container.OchBuilder;
  51 import org.opendaylight.yang.gen.v1.http.org.openroadm.optical.transport.interfaces.rev181019.OtsAttributes;
  52 import org.opendaylight.yang.gen.v1.http.org.openroadm.optical.transport.interfaces.rev181019.ots.container.OtsBuilder;
  53 import org.opendaylight.yang.gen.v1.http.org.openroadm.otn.common.types.rev171215.ODU4;
  54 import org.opendaylight.yang.gen.v1.http.org.openroadm.otn.common.types.rev171215.OTU4;
  55 import org.opendaylight.yang.gen.v1.http.org.openroadm.otn.common.types.rev171215.PayloadTypeDef;
  56 import org.opendaylight.yang.gen.v1.http.org.openroadm.otn.odu.interfaces.rev181019.OduAttributes;
  57 import org.opendaylight.yang.gen.v1.http.org.openroadm.otn.odu.interfaces.rev181019.odu.container.OduBuilder;
  58 import org.opendaylight.yang.gen.v1.http.org.openroadm.otn.odu.interfaces.rev181019.opu.OpuBuilder;
  59 import org.opendaylight.yang.gen.v1.http.org.openroadm.otn.otu.interfaces.rev181019.OtuAttributes;
  60 import org.opendaylight.yang.gen.v1.http.org.openroadm.otn.otu.interfaces.rev181019.otu.container.OtuBuilder;
  61 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  62 import org.slf4j.Logger;
  63 import org.slf4j.LoggerFactory;
  64
  65 public class OpenRoadmInterface221 {
  66     private final PortMapping portMapping;
  67     private final OpenRoadmInterfaces openRoadmInterfaces;
  68     private FixedFlexInterface fixedFlex;
  69     private static final Logger LOG = LoggerFactory.getLogger(OpenRoadmInterfaceFactory.class);
  70
  71     public OpenRoadmInterface221(PortMapping portMapping, OpenRoadmInterfaces openRoadmInterfaces,
  72         FixedFlexInterface fixedFlex) {
  73         this.portMapping = portMapping;
  74         this.openRoadmInterfaces = openRoadmInterfaces;
  75         this.fixedFlex = fixedFlex;
  76     }
  77
  78     public String createOpenRoadmEthInterface(String nodeId, String logicalConnPoint)
  79         throws OpenRoadmInterfaceException {
  80         Mapping portMap = portMapping.getMapping(nodeId, logicalConnPoint);
  81         if (portMap == null) {
  82             throw new OpenRoadmInterfaceException(String.format("Unable to get mapping from PortMapping for node % and"
  83                 + " logical connection port %s", nodeId, logicalConnPoint));
  84         }
  85
  86         // Ethernet interface specific data
  87         EthernetBuilder ethIfBuilder = new EthernetBuilder();
  88         //ethIfBuilder.setAutoNegotiation(EthAttributes.AutoNegotiation.Enabled);
  89         //ethIfBuilder.setDuplex(EthAttributes.Duplex.Full);
  90         ethIfBuilder.setFec(EthAttributes.Fec.Off);
  91         ethIfBuilder.setSpeed(100000L);
  92         //ethIfBuilder.setMtu(9000L);
  93
  94         InterfaceBuilder ethInterfaceBldr = createGenericInterfaceBuilder(portMap, EthernetCsmacd.class,
  95             logicalConnPoint + "-ETHERNET");
  96         // Create Interface1 type object required for adding as augmentation
  97         Interface1Builder ethIf1Builder = new Interface1Builder();
  98         ethInterfaceBldr.addAugmentation(Interface1.class, ethIf1Builder.setEthernet(ethIfBuilder.build()).build());
  99
 100         // Post interface on the device
 101         openRoadmInterfaces.postInterface(nodeId, ethInterfaceBldr);
 102
 103         // Post the equipment-state change on the device circuit-pack
 104         openRoadmInterfaces.postEquipmentState(nodeId, portMap.getSupportingCircuitPackName(), true);
 105
 106         return ethInterfaceBldr.getName();
 107     }
 108
 109     /**
 110      * This methods creates an OCH interface on the given termination point on
 111      * Roadm.
 112      *
 113      * @param nodeId node ID
 114      * @param logicalConnPoint logical connection point
 115      * @param waveNumber wavelength number of the OCH interface.
 116      * @throws OpenRoadmInterfaceException OpenRoadm interface exception
 117      *
 118      * @return Name of the interface if successful, otherwise return null.
 119      */
 120
 121     public List<String> createFlexOCH(String nodeId, String logicalConnPoint, Long waveNumber)
 122         throws OpenRoadmInterfaceException {
 123
 124         List<String> interfacesCreated = new ArrayList<>();
 125
 126         if (logicalConnPoint.contains("DEG")) {
 127             String mcInterfaceCreated = createMCInterface(nodeId, logicalConnPoint, waveNumber);
 128             interfacesCreated.add(mcInterfaceCreated);
 129         }
 130
 131         String nmcInterfaceCreated = createNMCInterface(nodeId, logicalConnPoint, waveNumber);
 132         interfacesCreated.add(nmcInterfaceCreated);
 133
 134         return interfacesCreated;
 135     }
 136
 137     public String createMCInterface(String nodeId, String logicalConnPoint, Long waveNumber)
 138         throws OpenRoadmInterfaceException {
 139
 140         // TODO : Check this method
 141
 142         fixedFlex = fixedFlex.getFixedFlexWaveMapping(waveNumber.shortValue());
 143
 144         Mapping portMap = portMapping.getMapping(nodeId, logicalConnPoint);
 145         if (portMap == null) {
 146             throw new OpenRoadmInterfaceException(
 147                 String.format("Unable to get mapping from PortMapping for node % and logical connection port %s",
 148                     nodeId, logicalConnPoint));
 149         }
 150
 151         // TODO : Check this method
 152
 153         InterfaceBuilder mcInterfaceBldr = createGenericInterfaceBuilder(portMap,
 154             MediaChannelTrailTerminationPoint.class, logicalConnPoint + "-mc" + "-" + waveNumber);
 155         mcInterfaceBldr.setSupportingInterface(portMap.getSupportingOms());
 156
 157         McTtpBuilder mcTtpBuilder = new McTtpBuilder();
 158         mcTtpBuilder.setMinFreq(FrequencyTHz.getDefaultInstance(String.valueOf(fixedFlex.getStart())));
 159         mcTtpBuilder.setMaxFreq(FrequencyTHz.getDefaultInstance(String.valueOf(fixedFlex.getStop())));
 160
 161         // Create Interface1 type object required for adding as augmentation
 162         org.opendaylight.yang.gen.v1.http.org.openroadm.media.channel.interfaces.rev181019.Interface1Builder
 163             interface1Builder =
 164             new org.opendaylight.yang.gen.v1.http.org.openroadm.media.channel.interfaces.rev181019.Interface1Builder();
 165         interface1Builder.setMcTtp(mcTtpBuilder.build());
 166         mcInterfaceBldr.addAugmentation(
 167             org.opendaylight.yang.gen.v1.http.org.openroadm.media.channel.interfaces.rev181019.Interface1.class,
 168             interface1Builder.build());
 169
 170         // Post interface on the device
 171         openRoadmInterfaces.postInterface(nodeId, mcInterfaceBldr);
 172         return mcInterfaceBldr.getName();
 173     }
 174
 175     public String createNMCInterface(String nodeId, String logicalConnPoint, Long waveNumber)
 176         throws OpenRoadmInterfaceException {
 177
 178         // TODO : Check this method
 179
 180         fixedFlex = fixedFlex.getFixedFlexWaveMapping(waveNumber.shortValue());
 181
 182         Mapping portMap = portMapping.getMapping(nodeId, logicalConnPoint);
 183         if (portMap == null) {
 184             throw new OpenRoadmInterfaceException(
 185                 String.format("Unable to get mapping from PortMapping for node % and logical connection port %s",
 186                     nodeId, logicalConnPoint));
 187         }
 188
 189         LOG.info(" Freq Start {} and Freq End {} and center-Freq {}",
 190             String.valueOf(fixedFlex.getStart()), String.valueOf(fixedFlex.getStop()),
 191             String.valueOf(fixedFlex.getCenterFrequency()));
 192         //TODO : Check this method
 193         InterfaceBuilder nmcInterfaceBldr = createGenericInterfaceBuilder(portMap,
 194             NetworkMediaChannelConnectionTerminationPoint.class, logicalConnPoint + "-nmc" + "-" + waveNumber);
 195         if (logicalConnPoint.contains("DEG")) {
 196             nmcInterfaceBldr.setSupportingInterface(logicalConnPoint + "-mc" + "-" + waveNumber);
 197         }
 198
 199         NmcCtpBuilder nmcCtpIfBuilder = new NmcCtpBuilder();
 200
 201         nmcCtpIfBuilder.setFrequency(FrequencyTHz.getDefaultInstance(String.valueOf(fixedFlex.getCenterFrequency())));
 202         nmcCtpIfBuilder.setWidth(FrequencyGHz.getDefaultInstance("40"));
 203
 204         // Create Interface1 type object required for adding as augmentation
 205         org.opendaylight.yang.gen.v1.http.org.openroadm.network.media.channel.interfaces.rev181019.Interface1Builder
 206             nmcCtpI1fBuilder = new
 207              org.opendaylight.yang.gen.v1.http.org.openroadm.network.media.channel.interfaces.rev181019
 208                 .Interface1Builder();
 209         nmcCtpI1fBuilder.setNmcCtp(nmcCtpIfBuilder.build());
 210         nmcInterfaceBldr.addAugmentation(
 211             org.opendaylight.yang.gen.v1.http.org.openroadm.network.media.channel.interfaces.rev181019.Interface1.class,
 212             nmcCtpI1fBuilder.build());
 213
 214         // Post interface on the device
 215         openRoadmInterfaces.postInterface(nodeId, nmcInterfaceBldr);
 216         return nmcInterfaceBldr.getName();
 217     }
 218
 219     public String createOpenRoadmOchInterface(String nodeId, String logicalConnPoint, Long waveNumber)
 220         throws OpenRoadmInterfaceException {
 221         // TODO : Check this method
 222
 223         fixedFlex = fixedFlex.getFixedFlexWaveMapping(waveNumber.shortValue());
 224
 225         Mapping portMap = portMapping.getMapping(nodeId, logicalConnPoint);
 226         if (portMap == null) {
 227             throw new OpenRoadmInterfaceException(
 228                 String.format("Unable to get mapping from PortMapping for node %s and logical connection port %s",
 229                     nodeId, logicalConnPoint));
 230         }
 231
 232         // OCH interface specific data
 233         OchBuilder ocIfBuilder = new OchBuilder();
 234
 235         ocIfBuilder.setFrequency(FrequencyTHz.getDefaultInstance(String.valueOf(fixedFlex.getCenterFrequency())));
 236         ocIfBuilder.setRate(R100G.class);
 237         ocIfBuilder.setTransmitPower(new PowerDBm(new BigDecimal("-5")));
 238
 239         // Create generic interface
 240         InterfaceBuilder ochInterfaceBldr = createGenericInterfaceBuilder(portMap, OpticalChannel.class,
 241             createOpenRoadmOchInterfaceName(logicalConnPoint, waveNumber));
 242         // Create Interface1 type object required for adding as augmentation
 243         // TODO look at imports of different versions of class
 244         org.opendaylight.yang.gen.v1.http.org.openroadm.optical.channel.interfaces.rev181019.Interface1Builder
 245             ochIf1Builder = new org.opendaylight.yang.gen.v1.http.org.openroadm.optical.channel.interfaces.rev181019
 246             .Interface1Builder();
 247         ochInterfaceBldr.addAugmentation(
 248             org.opendaylight.yang.gen.v1.http.org.openroadm.optical.channel.interfaces.rev181019.Interface1.class,
 249             ochIf1Builder.setOch(ocIfBuilder.build()).build());
 250
 251         // Post interface on the device
 252         openRoadmInterfaces.postInterface(nodeId, ochInterfaceBldr);
 253
 254         // Post the equipment-state change on the device circuit-pack if xpdr node
 255         if (portMap.getLogicalConnectionPoint().contains(StringConstants.NETWORK_TOKEN)) {
 256             this.openRoadmInterfaces.postEquipmentState(nodeId, portMap.getSupportingCircuitPackName(), true);
 257         }
 258
 259         return ochInterfaceBldr.getName();
 260     }
 261
 262     public String createOpenRoadmOdu4Interface(String nodeId, String logicalConnPoint, String supportingOtuInterface)
 263         throws OpenRoadmInterfaceException {
 264         Mapping portMap = portMapping.getMapping(nodeId, logicalConnPoint);
 265         if (portMap == null) {
 266             throw new OpenRoadmInterfaceException(
 267                 String.format("Unable to get mapping from PortMapping for node % and logical connection port %s",
 268                     nodeId, logicalConnPoint));
 269         }
 270         InterfaceBuilder oduInterfaceBldr = createGenericInterfaceBuilder(portMap, OtnOdu.class,
 271             logicalConnPoint + "-ODU");
 272         oduInterfaceBldr.setSupportingInterface(supportingOtuInterface);
 273
 274         // ODU interface specific data
 275         OduBuilder oduIfBuilder = new OduBuilder();
 276         oduIfBuilder.setRate(ODU4.class);
 277         oduIfBuilder.setMonitoringMode(OduAttributes.MonitoringMode.Terminated);
 278
 279         // Set Opu attributes
 280         OpuBuilder opuBldr = new OpuBuilder();
 281         opuBldr.setPayloadType(PayloadTypeDef.getDefaultInstance("07"));
 282         opuBldr.setExpPayloadType(PayloadTypeDef.getDefaultInstance("07"));
 283         oduIfBuilder.setOpu(opuBldr.build());
 284
 285         // Create Interface1 type object required for adding as augmentation
 286         // TODO look at imports of different versions of class
 287         org.opendaylight.yang.gen.v1.http.org.openroadm.otn.odu.interfaces.rev181019.Interface1Builder oduIf1Builder =
 288             new org.opendaylight.yang.gen.v1.http.org.openroadm.otn.odu.interfaces.rev181019.Interface1Builder();
 289         oduInterfaceBldr.addAugmentation(
 290             org.opendaylight.yang.gen.v1.http.org.openroadm.otn.odu.interfaces.rev181019.Interface1.class,
 291             oduIf1Builder.setOdu(oduIfBuilder.build()).build());
 292
 293         // Post interface on the device
 294         openRoadmInterfaces.postInterface(nodeId, oduInterfaceBldr);
 295         return oduInterfaceBldr.getName();
 296     }
 297
 298     public String createOpenRoadmOtu4Interface(String nodeId, String logicalConnPoint, String supportOchInterface)
 299         throws OpenRoadmInterfaceException {
 300         Mapping portMap = portMapping.getMapping(nodeId, logicalConnPoint);
 301         if (portMap == null) {
 302             throw new OpenRoadmInterfaceException(
 303                 String.format("Unable to get mapping from PortMapping for node % and logical connection port %s",
 304                     nodeId, logicalConnPoint));
 305         }
 306         // Create generic interface
 307         InterfaceBuilder otuInterfaceBldr = createGenericInterfaceBuilder(portMap, OtnOtu.class,
 308             logicalConnPoint + "-OTU");
 309         otuInterfaceBldr.setSupportingInterface(supportOchInterface);
 310
 311         // OTU interface specific data
 312         OtuBuilder otuIfBuilder = new OtuBuilder();
 313         otuIfBuilder.setFec(OtuAttributes.Fec.Scfec);
 314         otuIfBuilder.setRate(OTU4.class);
 315
 316         // Create Interface1 type object required for adding as augmentation
 317         // TODO look at imports of different versions of class
 318         org.opendaylight.yang.gen.v1.http.org.openroadm.otn.otu.interfaces.rev181019.Interface1Builder otuIf1Builder =
 319             new org.opendaylight.yang.gen.v1.http.org.openroadm.otn.otu.interfaces.rev181019.Interface1Builder();
 320         otuInterfaceBldr.addAugmentation(
 321             org.opendaylight.yang.gen.v1.http.org.openroadm.otn.otu.interfaces.rev181019.Interface1.class,
 322             otuIf1Builder.setOtu(otuIfBuilder.build()).build());
 323
 324         // Post interface on the device
 325         openRoadmInterfaces.postInterface(nodeId, otuInterfaceBldr);
 326         return otuInterfaceBldr.getName();
 327     }
 328
 329     public String createOpenRoadmOchInterfaceName(String logicalConnectionPoint, Long waveNumber) {
 330         return logicalConnectionPoint + "-" + waveNumber;
 331     }
 332
 333     private InterfaceBuilder createGenericInterfaceBuilder(Mapping portMap, Class<? extends InterfaceType> type,
 334         String key) {
 335         InterfaceBuilder interfaceBuilder = new InterfaceBuilder();
 336         interfaceBuilder.setDescription("  TBD   ");
 337         interfaceBuilder.setCircuitId("   TBD    ");
 338         interfaceBuilder.setSupportingCircuitPackName(portMap.getSupportingCircuitPackName());
 339         interfaceBuilder.setSupportingPort(portMap.getSupportingPort());
 340         interfaceBuilder.setAdministrativeState(AdminStates.InService);
 341         interfaceBuilder.setType(type);
 342         interfaceBuilder.setName(key);
 343         interfaceBuilder.withKey(new InterfaceKey(key));
 344         return interfaceBuilder;
 345     }
 346
 347     public String createOpenRoadmOmsInterface(String nodeId, Mapping mapping) throws OpenRoadmInterfaceException {
 348         if (mapping.getSupportingOms() == null) {
 349             // Create generic interface
 350             InterfaceBuilder omsInterfaceBldr = createGenericInterfaceBuilder(mapping, OpenROADMOpticalMultiplex.class,
 351                 "OMS-" + mapping.getLogicalConnectionPoint());
 352             if (mapping.getSupportingOts() != null) {
 353                 omsInterfaceBldr.setSupportingInterface(mapping.getSupportingOts());
 354             } else {
 355                 LOG.error("Unable to get ots interface from mapping {} - {}", nodeId,
 356                     mapping.getLogicalConnectionPoint());
 357                 return null;
 358             }
 359             this.openRoadmInterfaces.postInterface(nodeId, omsInterfaceBldr);
 360             this.portMapping.updateMapping(nodeId, mapping);
 361             return omsInterfaceBldr.build().getName();
 362         } else {
 363             return mapping.getSupportingOms();
 364         }
 365     }
 366
 367     public String createOpenRoadmOtsInterface(String nodeId, Mapping mapping) throws OpenRoadmInterfaceException {
 368         if (mapping.getSupportingOts() == null) {
 369             // Create generic interface
 370             InterfaceBuilder otsInterfaceBldr = createGenericInterfaceBuilder(mapping, OpticalTransport.class, "OTS-"
 371                 + mapping.getLogicalConnectionPoint());
 372             // OTS interface augmentation specific data
 373             OtsBuilder otsIfBuilder = new OtsBuilder();
 374             otsIfBuilder.setFiberType(OtsAttributes.FiberType.Smf);
 375
 376             // Create Interface1 type object required for adding as
 377             // augmentation
 378             org.opendaylight.yang.gen.v1.http.org.openroadm.optical.transport.interfaces.rev181019.Interface1Builder
 379                 otsIf1Builder = new org.opendaylight.yang.gen.v1.http.org.openroadm.optical.transport.interfaces
 380                 .rev181019.Interface1Builder();
 381             otsInterfaceBldr.addAugmentation(
 382                 org.opendaylight.yang.gen.v1.http.org.openroadm.optical.transport.interfaces.rev181019.Interface1.class,
 383                 otsIf1Builder.setOts(otsIfBuilder.build()).build());
 384             this.openRoadmInterfaces.postInterface(nodeId, otsInterfaceBldr);
 385             this.portMapping.updateMapping(nodeId, mapping);
 386             return otsInterfaceBldr.build().getName();
 387         } else {
 388             return mapping.getSupportingOts();
 389         }
 390     }
 391
 392     public boolean isUsedByXc(String nodeId, String interfaceName, String xc,
 393         DeviceTransactionManager deviceTransactionManager) {
 394         InstanceIdentifier<RoadmConnections> xciid = InstanceIdentifier.create(OrgOpenroadmDevice.class)
 395             .child(RoadmConnections.class, new RoadmConnectionsKey(xc));
 396         LOG.info("reading xc {} in node {}", xc, nodeId);
 397         Optional<RoadmConnections> crossconnection = deviceTransactionManager.getDataFromDevice(nodeId,
 398             LogicalDatastoreType.CONFIGURATION, xciid, Timeouts.DEVICE_READ_TIMEOUT, Timeouts.DEVICE_READ_TIMEOUT_UNIT);
 399         if (crossconnection.isPresent()) {
 400             RoadmConnections rc = crossconnection.get();
 401             LOG.info("xd {} found", xc);
 402             String supportedinter = null;
 403             if (!interfaceName.contains("nmc")) {
 404                 supportedinter = interfaceName.replace("mc", "nmc");
 405             }
 406             if (rc.getSource().getSrcIf().equals(interfaceName)
 407                 || rc.getDestination().getDstIf().equals(interfaceName)
 408                 || rc.getSource().getSrcIf().equals(supportedinter)
 409                 || rc.getDestination().getDstIf().equals(supportedinter)) {
 410                 return true;
 411             }
 412         } else {
 413             LOG.info("xd {} not found !", xc);
 414         }
 415         return false;
 416     }
 417
 418 }