olm/src/main/java/org/opendaylight/transportpce/olm/power/PowerMgmtImpl.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.olm.power;
  10
  11 import java.math.BigDecimal;
  12 import java.math.MathContext;
  13 import java.math.RoundingMode;
  14 import java.util.Arrays;
  15 import java.util.HashMap;
  16 import java.util.Locale;
  17 import java.util.Map;
  18 import java.util.Optional;
  19 import java.util.stream.Collectors;
  20 import org.opendaylight.transportpce.common.crossconnect.CrossConnect;
  21 import org.opendaylight.transportpce.common.device.DeviceTransactionManager;
  22 import org.opendaylight.transportpce.common.fixedflex.GridConstant;
  23 import org.opendaylight.transportpce.common.mapping.PortMapping;
  24 import org.opendaylight.transportpce.common.openroadminterfaces.OpenRoadmInterfaceException;
  25 import org.opendaylight.transportpce.common.openroadminterfaces.OpenRoadmInterfaces;
  26 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.olm.rev210618.ServicePowerSetupInput;
  27 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.olm.rev210618.ServicePowerTurndownInput;
  28 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev231221.OpenroadmNodeVersion;
  29 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev231221.mapping.Mapping;
  30 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev231221.mapping.MappingKey;
  31 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev231221.network.Nodes;
  32 import org.opendaylight.yang.gen.v1.http.org.openroadm.common.types.rev161014.OpticalControlMode;
  33 import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev170206.interfaces.grp.Interface;
  34 import org.opendaylight.yang.gen.v1.http.org.openroadm.optical.transport.interfaces.rev161014.Interface1;
  35 import org.opendaylight.yangtools.yang.common.Decimal64;
  36 import org.osgi.service.component.annotations.Activate;
  37 import org.osgi.service.component.annotations.Component;
  38 import org.osgi.service.component.annotations.Reference;
  39 import org.osgi.service.metatype.annotations.AttributeDefinition;
  40 import org.osgi.service.metatype.annotations.ObjectClassDefinition;
  41 import org.slf4j.Logger;
  42 import org.slf4j.LoggerFactory;
  43
  44 @Component(configurationPid = "org.opendaylight.transportpce")
  45 public class PowerMgmtImpl implements PowerMgmt {
  46
  47     @ObjectClassDefinition
  48     public @interface Configuration {
  49         @AttributeDefinition
  50         long timer1() default 120000;
  51         @AttributeDefinition
  52         long timer2() default 20000;
  53     }
  54     private static final Logger LOG = LoggerFactory.getLogger(PowerMgmtImpl.class);
  55     private final OpenRoadmInterfaces openRoadmInterfaces;
  56     private final CrossConnect crossConnect;
  57     private final DeviceTransactionManager deviceTransactionManager;
  58     private final PortMapping portMapping;
  59     private static final BigDecimal DEFAULT_TPDR_PWR_100G = new BigDecimal(-5);
  60     private static final BigDecimal DEFAULT_TPDR_PWR_400G = new BigDecimal(0);
  61     private static final String INTERFACE_NOT_PRESENT = "Interface {} on node {} is not present!";
  62     private static final double MC_WIDTH_GRAN = 2 * GridConstant.GRANULARITY;
  63
  64     private long timer1;
  65     // openroadm spec value is 120000, functest value is 3000
  66     private long timer2;
  67     // openroadm spec value is 20000, functest value is 2000
  68
  69     @Activate
  70     public PowerMgmtImpl(@Reference OpenRoadmInterfaces openRoadmInterfaces,
  71             @Reference CrossConnect crossConnect,
  72             @Reference DeviceTransactionManager deviceTransactionManager,
  73             @Reference PortMapping portMapping, final Configuration configuration) {
  74         this(openRoadmInterfaces, crossConnect, deviceTransactionManager, portMapping, configuration.timer1(),
  75                 configuration.timer2());
  76     }
  77
  78     public PowerMgmtImpl(OpenRoadmInterfaces openRoadmInterfaces,
  79                          CrossConnect crossConnect, DeviceTransactionManager deviceTransactionManager,
  80             PortMapping portMapping, long timer1, long timer2) {
  81         this.openRoadmInterfaces = openRoadmInterfaces;
  82         this.crossConnect = crossConnect;
  83         this.deviceTransactionManager = deviceTransactionManager;
  84         this.portMapping = portMapping;
  85         try {
  86             this.timer1 = Long.valueOf(timer1);
  87         } catch (NumberFormatException e) {
  88             this.timer1 = 120000;
  89             LOG.warn("Failed to retrieve Olm timer1 value from configuration - using default value {}",
  90                 this.timer1, e);
  91         }
  92         try {
  93             this.timer2 = Long.valueOf(timer2);
  94         } catch (NumberFormatException e) {
  95             this.timer2 = 20000;
  96             LOG.warn("Failed to retrieve Olm timer2 value from configuration - using default value {}",
  97                 this.timer2, e);
  98         }
  99         LOG.debug("PowerMgmtImpl instantiated with olm timers = {} - {}", this.timer1, this.timer2);
 100     }
 101
 102     /**
 103      * This methods measures power requirement for turning up a WL
 104      * from the Spanloss at OTS transmit direction and update
 105      * roadm-connection target-output-power.
 106      *
 107      * @param input
 108      *            Input parameter from the olm servicePowerSetup rpc
 109      *
 110      * @return true/false based on status of operation.
 111      */
 112     //TODO Need to Case Optical Power mode/NodeType in case of 2.2 devices
 113     public Boolean setPower(ServicePowerSetupInput input) {
 114         LOG.info("Olm-setPower initiated for input {}", input);
 115         String spectralSlotName = String.join(GridConstant.SPECTRAL_SLOT_SEPARATOR,
 116                 input.getLowerSpectralSlotNumber().toString(),
 117                 input.getHigherSpectralSlotNumber().toString());
 118         if (input.getNodes() == null) {
 119             LOG.error("No Nodes to configure");
 120             return false;
 121         }
 122         for (int i = 0; i < input.getNodes().size(); i++) {
 123             String nodeId = input.getNodes().get(i).getNodeId();
 124             String destTpId = input.getNodes().get(i).getDestTp();
 125             Nodes inputNode = this.portMapping.getNode(nodeId);
 126             if (inputNode == null || inputNode.getNodeInfo() == null) {
 127                 LOG.error("OLM-PowerMgmtImpl : Error retrieving mapping node for {}", nodeId);
 128                 return false;
 129             }
 130             OpenroadmNodeVersion openroadmVersion = inputNode.getNodeInfo().getOpenroadmVersion();
 131
 132             switch (inputNode.getNodeInfo().getNodeType()) {
 133                 case Xpdr:
 134                     if (destTpId == null) {
 135                         continue;
 136                     }
 137                     LOG.info("Getting data from input node {}", inputNode.getNodeInfo().getNodeType());
 138                     LOG.info("Getting mapping data for node is {}",
 139                         inputNode.nonnullMapping().values().stream().filter(o -> o.key()
 140                          .equals(new MappingKey(destTpId))).findFirst().toString());
 141                     // If its not A-End transponder
 142                     if (!destTpId.toUpperCase(Locale.getDefault()).contains("NETWORK")) {
 143                         LOG.info("{} is a drop node. Net power settings needed", nodeId);
 144                         continue;
 145                     }
 146
 147                     BigDecimal powerVal = getXpdrPowerValue(
 148                             inputNode, destTpId, nodeId, openroadmVersion.getIntValue(),
 149                             input.getNodes().get(i + 1).getSrcTp(), input.getNodes().get(i + 1).getNodeId());
 150                     if (powerVal == null) {
 151                         return false;
 152                     }
 153
 154                     String interfaceName = String.join(GridConstant.NAME_PARAMETERS_SEPARATOR,
 155                         destTpId, spectralSlotName);
 156                     if (!callSetTransponderPower(nodeId, interfaceName, powerVal, openroadmVersion)) {
 157                         LOG.info("Transponder OCH connection: {} power update failed ", interfaceName);
 158                         continue;
 159                     }
 160                     LOG.info("Transponder OCH connection: {} power updated ", interfaceName);
 161                     try {
 162                         LOG.info("Now going in sleep mode");
 163                         Thread.sleep(timer1);
 164                     } catch (InterruptedException e) {
 165                         LOG.info("Transponder warmup failed for OCH connection: {}", interfaceName, e);
 166                         // FIXME shouldn't it be LOG.warn  or LOG.error?
 167                         // or maybe this try/catch block can simply be removed
 168                     }
 169                     break;
 170                 case Rdm:
 171                     LOG.info("This is a roadm {} device", openroadmVersion.getName());
 172                     String connectionNumber = String.join(GridConstant.NAME_PARAMETERS_SEPARATOR,
 173                             input.getNodes().get(i).getSrcTp(), destTpId, spectralSlotName);
 174                     LOG.info("Connection number is {}", connectionNumber);
 175
 176                     // If Drop node leave node is power mode
 177                     if (destTpId.toUpperCase(Locale.getDefault()).contains("SRG")) {
 178                         LOG.info("Setting power at drop node");
 179                         crossConnect.setPowerLevel(nodeId, OpticalControlMode.Power.getName(), null, connectionNumber);
 180                         continue;
 181                     }
 182                     if (!destTpId.toUpperCase(Locale.getDefault()).contains("DEG")) {
 183                         continue;
 184                     }
 185                     // If Degree is transmitting end then set power
 186                     Optional<Mapping> mappingObjectOptional = inputNode.nonnullMapping()
 187                             .values().stream().filter(o -> o.key()
 188                             .equals(new MappingKey(destTpId))).findFirst();
 189                     if (mappingObjectOptional.isEmpty()) {
 190                         continue;
 191                     }
 192                     // TODO can it be return false rather than continue?
 193                     // in that case, mappingObjectOptional could be moved inside method getSpanLossTx()
 194                     LOG.info("Dest point is Degree {}", mappingObjectOptional.orElseThrow());
 195                     BigDecimal spanLossTx = getSpanLossTx(mappingObjectOptional.orElseThrow().getSupportingOts(),
 196                         destTpId, nodeId, openroadmVersion.getIntValue());
 197
 198                     LOG.info("Spanloss TX is {}", spanLossTx);
 199                     // TODO: The span-loss limits should be obtained from optical specifications
 200                     if (spanLossTx == null || spanLossTx.intValue() <= 0 || spanLossTx.intValue() > 27) {
 201                         LOG.error("Power Value is null: spanLossTx null or out of openROADM range ]0,27] {}",
 202                             spanLossTx);
 203                         return false;
 204                     }
 205                     Decimal64 powerValue = Decimal64.valueOf(getRdmPowerValue(spanLossTx, input));
 206                     try {
 207                         if (!crossConnect.setPowerLevel(nodeId, OpticalControlMode.Power.getName(), powerValue,
 208                                 connectionNumber)) {
 209                             LOG.info("Set Power failed for Roadm-connection: {} on Node: {}",
 210                                     connectionNumber, nodeId);
 211                             // FIXME shouldn't it be LOG.error
 212                             return false;
 213                         }
 214                         LOG.info("Roadm-connection: {} updated ", connectionNumber);
 215                         Thread.sleep(timer2);
 216                         // TODO make this timer value configurable via OSGi blueprint
 217                         // although the value recommended by the white paper is 20 seconds.
 218                         // At least one vendor product needs 60 seconds
 219                         // because it is not supporting GainLoss with target-output-power.
 220
 221                         if (!crossConnect.setPowerLevel(nodeId, OpticalControlMode.GainLoss.getName(), powerValue,
 222                                 connectionNumber)) {
 223                             LOG.warn("Setting power-control mode off failed for Roadm-connection: {}",
 224                                 connectionNumber);
 225                             // FIXME no return false in that case?
 226                         }
 227                     } catch (InterruptedException e) {
 228                         LOG.error("Olm-setPower wait failed :", e);
 229                         return false;
 230                     }
 231                     break;
 232                 default :
 233                     LOG.error("OLM-PowerMgmtImpl : Error with node type for node {}", nodeId);
 234                     break;
 235             }
 236         }
 237         return true;
 238     }
 239
 240     private Map<String, Double> getTxPowerRangeMap(Nodes inputNode, String destTpId, String nodeId,
 241             Integer openroadmVersion) {
 242
 243         Optional<Mapping> mappingObject = inputNode.nonnullMapping().values().stream()
 244                 .filter(o -> o.key().equals(new MappingKey(destTpId))).findFirst();
 245         if (mappingObject.isEmpty()) {
 246             LOG.info("Mapping object not found for nodeId: {}", nodeId);
 247             // FIXME shouldn't it be LOG.error ?
 248             return null;
 249             // return null here means return false in setPower()
 250             // TODO Align protections with getSRGRxPowerRangeMap
 251         }
 252
 253         String circuitPackName = mappingObject.orElseThrow().getSupportingCircuitPackName();
 254         String portName = mappingObject.orElseThrow().getSupportingPort();
 255         switch (openroadmVersion) {
 256             case 1:
 257                 return PowerMgmtVersion121.getXponderPowerRange(circuitPackName, portName,
 258                     nodeId, deviceTransactionManager);
 259             case 2:
 260                 return PowerMgmtVersion221.getXponderPowerRange(circuitPackName, portName,
 261                     nodeId, deviceTransactionManager);
 262             case 3:
 263                 return PowerMgmtVersion710.getXponderPowerRange(circuitPackName, portName,
 264                     nodeId, deviceTransactionManager);
 265             default:
 266                 LOG.error("Unrecognized OpenRoadm version");
 267                 return new HashMap<>();
 268                 // FIXME shouldn't it lead to a return false in setPower()?
 269         }
 270     }
 271
 272
 273     private Map<String, Double> getSRGRxPowerRangeMap(String srgId, String nodeId, Integer openroadmVersion) {
 274
 275         Nodes inputNode = this.portMapping.getNode(nodeId);
 276         int rdmOpenroadmVersion = inputNode.getNodeInfo().getOpenroadmVersion().getIntValue();
 277         Optional<Mapping> mappingObject = inputNode.nonnullMapping().values().stream()
 278                 .filter(o -> o.key().equals(new MappingKey(srgId)))
 279                 .findFirst();
 280
 281         if (mappingObject.isEmpty()) {
 282             return new HashMap<>();
 283             // FIXME shouldn't it lead to a return false in setPower() ?
 284         }
 285
 286         String circuitPackName = mappingObject.orElseThrow().getSupportingCircuitPackName();
 287         String portName = mappingObject.orElseThrow().getSupportingPort();
 288         switch (rdmOpenroadmVersion) {
 289             case 1:
 290                 return PowerMgmtVersion121.getSRGRxPowerRange(nodeId, srgId,
 291                         deviceTransactionManager, circuitPackName, portName);
 292             case 2:
 293                 return PowerMgmtVersion221.getSRGRxPowerRange(nodeId, srgId,
 294                         deviceTransactionManager, circuitPackName, portName);
 295             case 3:
 296                 return PowerMgmtVersion710.getSRGRxPowerRange(nodeId, srgId,
 297                         deviceTransactionManager, circuitPackName, portName);
 298             default:
 299                 LOG.error("Unrecognized OpenRoadm version");
 300                 return null;
 301                 //return null here means return false in setPower()
 302                 // TODO Align protections with getTxPowerRangeMap
 303         }
 304     }
 305
 306     private BigDecimal getSpanLossTx(String supportingOts, String destTpId, String nodeId, Integer openroadmVersion) {
 307         try {
 308             switch (openroadmVersion) {
 309                 case 1:
 310                     Optional<Interface> interfaceOpt =
 311                         this.openRoadmInterfaces.getInterface(nodeId, supportingOts);
 312                     if (interfaceOpt.isEmpty()) {
 313                         LOG.error(INTERFACE_NOT_PRESENT, supportingOts, nodeId);
 314                         return null;
 315                     }
 316                     if (interfaceOpt.orElseThrow().augmentation(Interface1.class).getOts()
 317                             .getSpanLossTransmit() == null) {
 318                         LOG.error("interface {} has no spanloss value", interfaceOpt.orElseThrow().getName());
 319                         return null;
 320                     }
 321                     return interfaceOpt.orElseThrow()
 322                             .augmentation(Interface1.class)
 323                             .getOts().getSpanLossTransmit().getValue().decimalValue();
 324                 case 2:
 325                     Optional<org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev181019
 326                             .interfaces.grp.Interface> interfaceOpt1 =
 327                         this.openRoadmInterfaces.getInterface(nodeId, supportingOts);
 328                     if (interfaceOpt1.isEmpty()) {
 329                         LOG.error(INTERFACE_NOT_PRESENT, supportingOts, nodeId);
 330                         return null;
 331                     }
 332                     if (interfaceOpt1.orElseThrow().augmentation(org.opendaylight.yang.gen.v1.http.org
 333                             .openroadm.optical.transport.interfaces.rev181019.Interface1.class).getOts()
 334                                 .getSpanLossTransmit() == null) {
 335                         LOG.error("interface {} has no spanloss value", interfaceOpt1.orElseThrow().getName());
 336                         return null;
 337                     }
 338                     return interfaceOpt1.orElseThrow()
 339                             .augmentation(org.opendaylight.yang.gen.v1.http.org
 340                                 .openroadm.optical.transport.interfaces.rev181019.Interface1.class)
 341                             .getOts().getSpanLossTransmit().getValue().decimalValue();
 342                 // TODO no case 3 ?
 343                 default:
 344                     return null;
 345             }
 346         } catch (OpenRoadmInterfaceException ex) {
 347             LOG.error("Failed to get interface {} from node {}!",
 348                 supportingOts, nodeId, ex);
 349             return null;
 350         } catch (IllegalArgumentException ex) {
 351             LOG.error("Failed to get non existing interface {} from node {}!",
 352                 supportingOts, nodeId);
 353             return null;
 354         }
 355     }
 356
 357     private BigDecimal getXpdrPowerValue(Nodes inputNode, String destTpId, String nodeId, Integer openroadmVersion,
 358             String srgId, String nextNodeId) {
 359
 360         Map<String, Double> txPowerRangeMap = getTxPowerRangeMap(inputNode, destTpId, nodeId, openroadmVersion);
 361         if (txPowerRangeMap == null) {
 362             return null;
 363             // return null here means return false in setPower()
 364         }
 365         BigDecimal powerVal =
 366             openroadmVersion == 3 ? DEFAULT_TPDR_PWR_400G : DEFAULT_TPDR_PWR_100G;
 367         if (txPowerRangeMap.isEmpty()) {
 368             LOG.info("Tranponder range not available setting to default power for nodeId: {}", nodeId);
 369             return powerVal;
 370         }
 371
 372         Map<String, Double> rxSRGPowerRangeMap = getSRGRxPowerRangeMap(srgId, nextNodeId, openroadmVersion);
 373         if (rxSRGPowerRangeMap == null) {
 374             return null;
 375             // return null here means return false in setPower()
 376             // TODO empty txPowerRangeMap + null rxSRGPowerRangeMap is allowed
 377             // => confirm this behavior is OK
 378         }
 379         if (rxSRGPowerRangeMap.isEmpty()) {
 380             LOG.info("SRG Power Range not found, setting the Transponder range to default");
 381             return powerVal;
 382         }
 383
 384         powerVal = new BigDecimal(txPowerRangeMap.get("MaxTx"))
 385             .min(new BigDecimal(rxSRGPowerRangeMap.get("MaxRx")));
 386         LOG.info("Calculated Transponder Power value is {}" , powerVal);
 387         return powerVal;
 388     }
 389
 390
 391     private BigDecimal getRdmPowerValue(BigDecimal spanLossTx, ServicePowerSetupInput input) {
 392         // TODO: These values will be obtained from the specifications
 393         // power-value here refers to the Pin[50GHz]
 394         BigDecimal powerValue;
 395         if (spanLossTx.doubleValue()  >= 23.0) {
 396             powerValue = BigDecimal.valueOf(2.0);
 397         } else if (spanLossTx.doubleValue()  >= 8.0) {
 398             powerValue = BigDecimal.valueOf(- (8.0 - spanLossTx.doubleValue()) / 3.0 - 3.0);
 399         } else if (spanLossTx.doubleValue() >= 6.0) {
 400             powerValue = BigDecimal.valueOf(-3.0);
 401         } else {
 402             powerValue = spanLossTx.subtract(BigDecimal.valueOf(9));
 403         }
 404         BigDecimal mcWidth = new BigDecimal(50);
 405         // we work at constant power spectral density (50 GHz channel width @-20dBm=37.5GHz)
 406         // 87.5 GHz channel width @-20dBm=75GHz
 407         if (input.getMcWidth() != null) {
 408             // Units of MC-width are in GHz, meaning it should be 40/50/87.5GHz
 409             // TODO: Should we validate this units before proceeding?
 410             LOG.debug("Input Grid size is {}", input.getMcWidth().getValue());
 411
 412             // We round-off the mc-width to the nearest grid-value based on the granularity of 12.5 GHz
 413             double nbrMcSlots = Math.ceil(input.getMcWidth().getValue().doubleValue() / MC_WIDTH_GRAN);
 414             LOG.debug("Nearest (ceil) number of slots {}", nbrMcSlots);
 415             mcWidth = new BigDecimal(MC_WIDTH_GRAN * nbrMcSlots);
 416             LOG.debug("Given mc-width={}, Rounded mc-width={}", input.getMcWidth().getValue(), mcWidth);
 417
 418             BigDecimal logVal = mcWidth.divide(new BigDecimal(50));
 419             double pdsVal = 10 * Math.log10(logVal.doubleValue());
 420             // Addition of PSD value will give Pin[87.5 GHz]
 421             powerValue = powerValue.add(new BigDecimal(pdsVal, new MathContext(3, RoundingMode.HALF_EVEN)));
 422         }
 423         // FIXME compliancy with OpenROADM MSA and approximations used -- should be addressed with powermask update
 424         // cf JIRA ticket https://jira.opendaylight.org/browse/TRNSPRTPCE-494
 425         powerValue = powerValue.setScale(2, RoundingMode.CEILING);
 426         // target-output-power yang precision is 2, so we limit here to 2
 427         LOG.info("The power value is P1[{}GHz]={} dB for spanloss {}", mcWidth, powerValue, spanLossTx);
 428         return powerValue;
 429     }
 430
 431     /**
 432      * This methods turns down power a WL by performing
 433      * following steps:
 434      *
 435      * <p>
 436      * 1. Pull interfaces used in service and change
 437      * status to outOfService
 438      *
 439      * <p>
 440      * 2. For each of the ROADM node set target-output-power
 441      * to -60dbm, wait for 20 seconds, turn power mode to off
 442      *
 443      * <p>
 444      * 3. Turn down power in Z to A direction and A to Z
 445      *
 446      * @param input
 447      *            Input parameter from the olm servicePowerTurndown rpc
 448      *
 449      * @return true/false based on status of operation
 450      */
 451     public Boolean powerTurnDown(ServicePowerTurndownInput input) {
 452         LOG.info("Olm-powerTurnDown initiated for input {}", input);
 453         /*Starting with last element into the list Z -> A for
 454           turning down A -> Z */
 455         String spectralSlotName = String.join(GridConstant.SPECTRAL_SLOT_SEPARATOR,
 456                 input.getLowerSpectralSlotNumber().toString(),
 457                 input.getHigherSpectralSlotNumber().toString());
 458         for (int i = input.getNodes().size() - 1; i >= 0; i--) {
 459             String nodeId = input.getNodes().get(i).getNodeId();
 460             String destTpId = input.getNodes().get(i).getDestTp();
 461             String connectionNumber =  String.join(GridConstant.NAME_PARAMETERS_SEPARATOR,
 462                     input.getNodes().get(i).getSrcTp(), destTpId, spectralSlotName);
 463             try {
 464                 if (destTpId.toUpperCase(Locale.getDefault()).contains("DEG")) {
 465                     if (!crossConnect.setPowerLevel(nodeId, OpticalControlMode.Power.getName(),
 466                             Decimal64.valueOf("-60"), connectionNumber)) {
 467                         LOG.warn("Power down failed for Roadm-connection: {}", connectionNumber);
 468                         return false;
 469                     }
 470                     Thread.sleep(timer2);
 471                     if (!crossConnect.setPowerLevel(nodeId, OpticalControlMode.Off.getName(), null, connectionNumber)) {
 472                         LOG.warn("Setting power-control mode off failed for Roadm-connection: {}", connectionNumber);
 473                         return false;
 474                     }
 475                 } else if (destTpId.toUpperCase(Locale.getDefault()).contains("SRG")) {
 476                     if (!crossConnect.setPowerLevel(nodeId, OpticalControlMode.Off.getName(), null, connectionNumber)) {
 477                         LOG.warn("Setting power-control mode off failed for Roadm-connection: {}", connectionNumber);
 478                         // FIXME a return false would allow sync with DEG case but makes current Unit tests fail
 479                     }
 480                 }
 481             } catch (InterruptedException e) {
 482                 // TODO Auto-generated catch block
 483                 LOG.error("Olm-powerTurnDown wait failed: ",e);
 484                 return false;
 485             }
 486         }
 487         return true;
 488     }
 489
 490     /**
 491      * This method retrieves transponder OCH interface and
 492      * sets power.
 493      *
 494      * @param nodeId
 495      *            Unique identifier for the mounted netconf- node
 496      * @param interfaceName
 497      *            OCH interface name carrying WL
 498      * @param txPower
 499      *            Calculated transmit power
 500      * @param openroadmVersion
 501      *            Version of openRoadm device software
 502      * @return true/false based on status of operation
 503      */
 504     private boolean callSetTransponderPower(String nodeId, String interfaceName, BigDecimal txPower,
 505                                             OpenroadmNodeVersion openroadmVersion) {
 506
 507         boolean powerSetupResult = false;
 508         try {
 509             switch (openroadmVersion.getIntValue()) {
 510                 case 1:
 511                     Optional<Interface> interfaceOptional121 =
 512                         openRoadmInterfaces.getInterface(nodeId, interfaceName);
 513                     if (interfaceOptional121.isEmpty()) {
 514                         LOG.error(INTERFACE_NOT_PRESENT, interfaceName, nodeId);
 515                         return false;
 516                     }
 517                     powerSetupResult = PowerMgmtVersion121.setTransponderPower(nodeId, interfaceName,
 518                             txPower, deviceTransactionManager, interfaceOptional121.orElseThrow());
 519                     break;
 520                 case 2:
 521                     Optional<org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev181019.interfaces.grp
 522                             .Interface> interfaceOptional221 =
 523                         openRoadmInterfaces.getInterface(nodeId, interfaceName);
 524                     if (interfaceOptional221.isEmpty()) {
 525                         LOG.error(INTERFACE_NOT_PRESENT, interfaceName, nodeId);
 526                         return false;
 527                     }
 528                     powerSetupResult = PowerMgmtVersion221.setTransponderPower(nodeId, interfaceName,
 529                             txPower, deviceTransactionManager, interfaceOptional221.orElseThrow());
 530                     break;
 531                 case 3:
 532                     Optional<org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev200529.interfaces.grp
 533                             .Interface> interfaceOptional710 =
 534                         openRoadmInterfaces.getInterface(nodeId, interfaceName);
 535                     if (interfaceOptional710.isEmpty()) {
 536                         LOG.error(INTERFACE_NOT_PRESENT, interfaceName, nodeId);
 537                         return false;
 538                     }
 539                     // Check the support-interface-cap type
 540                     // Get the logical connection point name from the interface-name, by splitting it by "-"
 541                     // and discard the last part. For instance XPDR1-NETWORK1-xxx:xxx
 542                     String logicalConnectionPoint =
 543                         Arrays.stream(interfaceName.split("-", 3)).limit(2).collect(Collectors.joining("-"));
 544                     LOG.info("Logical connection point {} for Interface {}", logicalConnectionPoint, interfaceName);
 545                     Mapping portMap = portMapping.getMapping(nodeId, logicalConnectionPoint);
 546                     if (portMap == null) {
 547                         throw new OpenRoadmInterfaceException(
 548                                 OpenRoadmInterfaceException.mapping_msg_err(nodeId, logicalConnectionPoint));
 549                     }
 550                     powerSetupResult = PowerMgmtVersion710.setTransponderPower(nodeId, interfaceName,
 551                         txPower, deviceTransactionManager, interfaceOptional710.orElseThrow(), portMap);
 552                     break;
 553                 default:
 554                     LOG.error("Unrecognized OpenRoadm version");
 555                     return false;
 556             }
 557         } catch (OpenRoadmInterfaceException ex) {
 558             LOG.error("Failed to get interface {} from node {}!", interfaceName, nodeId, ex);
 559             return false;
 560         }
 561         if (!powerSetupResult) {
 562             LOG.debug("Transponder power setup failed for nodeId {} on interface {}",
 563                     nodeId, interfaceName);
 564             return false;
 565         }
 566         LOG.debug("Transponder power set up completed successfully for nodeId {} and interface {}",
 567                 nodeId,interfaceName);
 568         return true;
 569     }
 570
 571 }