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.HashMap;
  15 import java.util.Locale;
  16 import java.util.Map;
  17 import java.util.Optional;
  18 import org.opendaylight.mdsal.binding.api.DataBroker;
  19 import org.opendaylight.transportpce.common.crossconnect.CrossConnect;
  20 import org.opendaylight.transportpce.common.device.DeviceTransactionManager;
  21 import org.opendaylight.transportpce.common.fixedflex.GridConstant;
  22 import org.opendaylight.transportpce.common.mapping.PortMapping;
  23 import org.opendaylight.transportpce.common.openroadminterfaces.OpenRoadmInterfaceException;
  24 import org.opendaylight.transportpce.common.openroadminterfaces.OpenRoadmInterfaces;
  25 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.olm.rev210618.ServicePowerSetupInput;
  26 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.olm.rev210618.ServicePowerTurndownInput;
  27 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev220316.OpenroadmNodeVersion;
  28 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev220316.mapping.Mapping;
  29 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev220316.mapping.MappingKey;
  30 import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev220316.network.Nodes;
  31 import org.opendaylight.yang.gen.v1.http.org.openroadm.common.types.rev161014.OpticalControlMode;
  32 import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev170206.interfaces.grp.Interface;
  33 import org.opendaylight.yang.gen.v1.http.org.openroadm.optical.transport.interfaces.rev161014.Interface1;
  34 import org.opendaylight.yangtools.yang.common.Decimal64;
  35 import org.slf4j.Logger;
  36 import org.slf4j.LoggerFactory;
  37
  38 public class PowerMgmtImpl implements PowerMgmt {
  39     private static final Logger LOG = LoggerFactory.getLogger(PowerMgmtImpl.class);
  40     private final DataBroker db;
  41     private final OpenRoadmInterfaces openRoadmInterfaces;
  42     private final CrossConnect crossConnect;
  43     private final DeviceTransactionManager deviceTransactionManager;
  44     private final PortMapping portMapping;
  45     private static final BigDecimal DEFAULT_TPDR_PWR_100G = new BigDecimal(-5);
  46     private static final BigDecimal DEFAULT_TPDR_PWR_400G = new BigDecimal(0);
  47     private static final String INTERFACE_NOT_PRESENT = "Interface {} on node {} is not present!";
  48     private static final double MC_WIDTH_GRAN = 2 * GridConstant.GRANULARITY;
  49
  50     private long timer1 = 120000;
  51     // openroadm spec value is 120000, functest value is 3000
  52     private long timer2 = 20000;
  53     // openroadm spec value is 20000, functest value is 2000
  54
  55     public PowerMgmtImpl(DataBroker db, OpenRoadmInterfaces openRoadmInterfaces, CrossConnect crossConnect,
  56             DeviceTransactionManager deviceTransactionManager, PortMapping portMapping) {
  57         this.db = db;
  58         this.openRoadmInterfaces = openRoadmInterfaces;
  59         this.crossConnect = crossConnect;
  60         this.deviceTransactionManager = deviceTransactionManager;
  61         this.portMapping = portMapping;
  62     }
  63
  64     public PowerMgmtImpl(DataBroker db, OpenRoadmInterfaces openRoadmInterfaces,
  65                          CrossConnect crossConnect, DeviceTransactionManager deviceTransactionManager,
  66             PortMapping portMapping, String timer1, String timer2) {
  67         this.db = db;
  68         this.openRoadmInterfaces = openRoadmInterfaces;
  69         this.crossConnect = crossConnect;
  70         this.deviceTransactionManager = deviceTransactionManager;
  71         this.portMapping = portMapping;
  72         try {
  73             this.timer1 = Long.parseLong(timer1);
  74         } catch (NumberFormatException e) {
  75             this.timer1 = 120000;
  76             LOG.warn("Failed to retrieve Olm timer1 value from configuration - using default value {}",
  77                 this.timer1, e);
  78         }
  79         try {
  80             this.timer2 = Long.parseLong(timer2);
  81         } catch (NumberFormatException e) {
  82             this.timer2 = 20000;
  83             LOG.warn("Failed to retrieve Olm timer2 value from configuration - using default value {}",
  84                 this.timer2, e);
  85         }
  86     }
  87
  88     /**
  89      * This methods measures power requirement for turning up a WL
  90      * from the Spanloss at OTS transmit direction and update
  91      * roadm-connection target-output-power.
  92      *
  93      * @param input
  94      *            Input parameter from the olm servicePowerSetup rpc
  95      *
  96      * @return true/false based on status of operation.
  97      */
  98     //TODO Need to Case Optical Power mode/NodeType in case of 2.2 devices
  99     public Boolean setPower(ServicePowerSetupInput input) {
 100         LOG.info("Olm-setPower initiated for input {}", input);
 101         String spectralSlotName = String.join(GridConstant.SPECTRAL_SLOT_SEPARATOR,
 102                 input.getLowerSpectralSlotNumber().toString(),
 103                 input.getHigherSpectralSlotNumber().toString());
 104         if (input.getNodes() == null) {
 105             LOG.error("No Nodes to configure");
 106             return false;
 107         }
 108         for (int i = 0; i < input.getNodes().size(); i++) {
 109             String nodeId = input.getNodes().get(i).getNodeId();
 110             String destTpId = input.getNodes().get(i).getDestTp();
 111             Nodes inputNode = this.portMapping.getNode(nodeId);
 112             if (inputNode == null || inputNode.getNodeInfo() == null) {
 113                 LOG.error("OLM-PowerMgmtImpl : Error retrieving mapping node for {}", nodeId);
 114                 continue;
 115             }
 116             OpenroadmNodeVersion openroadmVersion = inputNode.getNodeInfo().getOpenroadmVersion();
 117
 118             switch (inputNode.getNodeInfo().getNodeType()) {
 119                 case Xpdr:
 120                     if (destTpId == null) {
 121                         continue;
 122                     }
 123                     LOG.info("Getting data from input node {}", inputNode.getNodeInfo().getNodeType());
 124                     LOG.info("Getting mapping data for node is {}",
 125                         inputNode.nonnullMapping().values().stream().filter(o -> o.key()
 126                          .equals(new MappingKey(destTpId))).findFirst().toString());
 127                     // If its not A-End transponder
 128                     if (!destTpId.toUpperCase(Locale.getDefault()).contains("NETWORK")) {
 129                         LOG.info("{} is a drop node. Net power settings needed", nodeId);
 130                         continue;
 131                     }
 132
 133                     BigDecimal powerVal = getXpdrPowerValue(
 134                             inputNode, destTpId, nodeId, openroadmVersion.getIntValue(),
 135                             input.getNodes().get(i + 1).getSrcTp(), input.getNodes().get(i + 1).getNodeId());
 136                     if (powerVal == null) {
 137                         return false;
 138                     }
 139
 140                     String interfaceName = String.join(GridConstant.NAME_PARAMETERS_SEPARATOR,
 141                         destTpId, spectralSlotName);
 142                     if (!callSetTransponderPower(nodeId, interfaceName, powerVal, openroadmVersion)) {
 143                         LOG.info("Transponder OCH connection: {} power update failed ", interfaceName);
 144                         continue;
 145                     }
 146                     LOG.info("Transponder OCH connection: {} power updated ", interfaceName);
 147                     try {
 148                         LOG.info("Now going in sleep mode");
 149                         Thread.sleep(timer1);
 150                     } catch (InterruptedException e) {
 151                         LOG.info("Transponder warmup failed for OCH connection: {}", interfaceName, e);
 152                         // FIXME shouldn't it be LOG.warn  or LOG.error?
 153                         // or maybe this try/catch block can simply be removed
 154                     }
 155                     break;
 156                 case Rdm:
 157                     LOG.info("This is a roadm {} device", openroadmVersion.getName());
 158                     String connectionNumber = String.join(GridConstant.NAME_PARAMETERS_SEPARATOR,
 159                             input.getNodes().get(i).getSrcTp(), destTpId, spectralSlotName);
 160                     LOG.info("Connection number is {}", connectionNumber);
 161
 162                     // If Drop node leave node is power mode
 163                     if (destTpId.toUpperCase(Locale.getDefault()).contains("SRG")) {
 164                         LOG.info("Setting power at drop node");
 165                         crossConnect.setPowerLevel(nodeId, OpticalControlMode.Power.getName(), null, connectionNumber);
 166                         continue;
 167                     }
 168                     if (!destTpId.toUpperCase(Locale.getDefault()).contains("DEG")) {
 169                         continue;
 170                     }
 171                     // If Degree is transmitting end then set power
 172                     Optional<Mapping> mappingObjectOptional = inputNode.nonnullMapping()
 173                             .values().stream().filter(o -> o.key()
 174                             .equals(new MappingKey(destTpId))).findFirst();
 175                     if (mappingObjectOptional.isEmpty()) {
 176                         continue;
 177                     }
 178                     // TODO can it be return false rather than continue?
 179                     // in that case, mappingObjectOptional could be moved inside method getSpanLossTx()
 180                     LOG.info("Dest point is Degree {}", mappingObjectOptional.get());
 181                     BigDecimal spanLossTx = getSpanLossTx(mappingObjectOptional.get().getSupportingOts(),
 182                         destTpId, nodeId, openroadmVersion.getIntValue());
 183
 184                     LOG.info("Spanloss TX is {}", spanLossTx);
 185                     // TODO: The span-loss limits should be obtained from optical specifications
 186                     if (spanLossTx == null || spanLossTx.intValue() <= 0 || spanLossTx.intValue() > 27) {
 187                         LOG.error("Power Value is null: spanLossTx null or out of openROADM range ]0,27] {}",
 188                             spanLossTx);
 189                         return false;
 190                     }
 191                     Decimal64 powerValue = Decimal64.valueOf(getRdmPowerValue(spanLossTx, input));
 192                     try {
 193                         if (!crossConnect.setPowerLevel(nodeId, OpticalControlMode.Power.getName(), powerValue,
 194                                 connectionNumber)) {
 195                             LOG.info("Set Power failed for Roadm-connection: {} on Node: {}",
 196                                     connectionNumber, nodeId);
 197                             // FIXME shouldn't it be LOG.error
 198                             return false;
 199                         }
 200                         LOG.info("Roadm-connection: {} updated ", connectionNumber);
 201                         Thread.sleep(timer2);
 202                         // TODO make this timer value configurable via OSGi blueprint
 203                         // although the value recommended by the white paper is 20 seconds.
 204                         // At least one vendor product needs 60 seconds
 205                         // because it is not supporting GainLoss with target-output-power.
 206
 207                         if (!crossConnect.setPowerLevel(nodeId, OpticalControlMode.GainLoss.getName(), powerValue,
 208                                 connectionNumber)) {
 209                             LOG.warn("Setting power-control mode off failed for Roadm-connection: {}",
 210                                 connectionNumber);
 211                             // FIXME no return false in that case?
 212                         }
 213                     } catch (InterruptedException e) {
 214                         LOG.error("Olm-setPower wait failed :", e);
 215                         return false;
 216                     }
 217                     break;
 218                 default :
 219                     LOG.error("OLM-PowerMgmtImpl : Error with node type for node {}", nodeId);
 220                     break;
 221             }
 222         }
 223         return true;
 224     }
 225
 226     private Map<String, Double> getTxPowerRangeMap(Nodes inputNode, String destTpId, String nodeId,
 227             Integer openroadmVersion) {
 228
 229         Optional<Mapping> mappingObject = inputNode.nonnullMapping().values().stream()
 230                 .filter(o -> o.key().equals(new MappingKey(destTpId))).findFirst();
 231         if (mappingObject.isEmpty()) {
 232             LOG.info("Mapping object not found for nodeId: {}", nodeId);
 233             // FIXME shouldn't it be LOG.error ?
 234             return null;
 235             // return null here means return false in setPower()
 236             // TODO Align protections with getSRGRxPowerRangeMap
 237         }
 238
 239         String circuitPackName = mappingObject.get().getSupportingCircuitPackName();
 240         String portName = mappingObject.get().getSupportingPort();
 241         switch (openroadmVersion) {
 242             case 1:
 243                 return PowerMgmtVersion121.getXponderPowerRange(circuitPackName, portName,
 244                     nodeId, deviceTransactionManager);
 245             case 2:
 246                 return PowerMgmtVersion221.getXponderPowerRange(circuitPackName, portName,
 247                     nodeId, deviceTransactionManager);
 248             case 3:
 249                 return PowerMgmtVersion710.getXponderPowerRange(circuitPackName, portName,
 250                     nodeId, deviceTransactionManager);
 251             default:
 252                 LOG.error("Unrecognized OpenRoadm version");
 253                 return new HashMap<>();
 254                 // FIXME shouldn't it lead to a return false in setPower()?
 255         }
 256     }
 257
 258
 259     private Map<String, Double> getSRGRxPowerRangeMap(String srgId, String nodeId, Integer openroadmVersion) {
 260
 261         Nodes inputNode = this.portMapping.getNode(nodeId);
 262         int rdmOpenroadmVersion = inputNode.getNodeInfo().getOpenroadmVersion().getIntValue();
 263         Optional<Mapping> mappingObject = inputNode.nonnullMapping().values().stream()
 264                 .filter(o -> o.key().equals(new MappingKey(srgId)))
 265                 .findFirst();
 266
 267         if (mappingObject.isEmpty()) {
 268             return new HashMap<>();
 269             // FIXME shouldn't it lead to a return false in setPower() ?
 270         }
 271
 272         String circuitPackName = mappingObject.get().getSupportingCircuitPackName();
 273         String portName = mappingObject.get().getSupportingPort();
 274         switch (rdmOpenroadmVersion) {
 275             case 1:
 276                 return PowerMgmtVersion121.getSRGRxPowerRange(nodeId, srgId,
 277                         deviceTransactionManager, circuitPackName, portName);
 278             case 2:
 279                 return PowerMgmtVersion221.getSRGRxPowerRange(nodeId, srgId,
 280                         deviceTransactionManager, circuitPackName, portName);
 281             case 3:
 282                 return PowerMgmtVersion710.getSRGRxPowerRange(nodeId, srgId,
 283                         deviceTransactionManager, circuitPackName, portName);
 284             default:
 285                 LOG.error("Unrecognized OpenRoadm version");
 286                 return null;
 287                 //return null here means return false in setPower()
 288                 // TODO Align protections with getTxPowerRangeMap
 289         }
 290     }
 291
 292     private BigDecimal getSpanLossTx(String supportingOts, String destTpId, String nodeId, Integer openroadmVersion) {
 293         try {
 294             switch (openroadmVersion) {
 295                 case 1:
 296                     Optional<Interface> interfaceOpt =
 297                         this.openRoadmInterfaces.getInterface(nodeId, supportingOts);
 298                     if (interfaceOpt.isEmpty()) {
 299                         LOG.error(INTERFACE_NOT_PRESENT, supportingOts, nodeId);
 300                         return null;
 301                     }
 302                     if (interfaceOpt.get().augmentation(Interface1.class).getOts()
 303                             .getSpanLossTransmit() == null) {
 304                         LOG.error("interface {} has no spanloss value", interfaceOpt.get().getName());
 305                         return null;
 306                     }
 307                     return interfaceOpt.get()
 308                             .augmentation(Interface1.class)
 309                             .getOts().getSpanLossTransmit().getValue().decimalValue();
 310                 case 2:
 311                     Optional<org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev181019
 312                             .interfaces.grp.Interface> interfaceOpt1 =
 313                         this.openRoadmInterfaces.getInterface(nodeId, supportingOts);
 314                     if (interfaceOpt1.isEmpty()) {
 315                         LOG.error(INTERFACE_NOT_PRESENT, supportingOts, nodeId);
 316                         return null;
 317                     }
 318                     if (interfaceOpt1.get().augmentation(org.opendaylight.yang.gen.v1.http.org
 319                             .openroadm.optical.transport.interfaces.rev181019.Interface1.class).getOts()
 320                                 .getSpanLossTransmit() == null) {
 321                         LOG.error("interface {} has no spanloss value", interfaceOpt1.get().getName());
 322                         return null;
 323                     }
 324                     return interfaceOpt1.get()
 325                             .augmentation(org.opendaylight.yang.gen.v1.http.org
 326                                 .openroadm.optical.transport.interfaces.rev181019.Interface1.class)
 327                             .getOts().getSpanLossTransmit().getValue().decimalValue();
 328                 // TODO no case 3 ?
 329                 default:
 330                     return null;
 331             }
 332         } catch (OpenRoadmInterfaceException ex) {
 333             LOG.error("Failed to get interface {} from node {}!",
 334                 supportingOts, nodeId, ex);
 335             return null;
 336         } catch (IllegalArgumentException ex) {
 337             LOG.error("Failed to get non existing interface {} from node {}!",
 338                 supportingOts, nodeId);
 339             return null;
 340         }
 341     }
 342
 343     private BigDecimal getXpdrPowerValue(Nodes inputNode, String destTpId, String nodeId, Integer openroadmVersion,
 344             String srgId, String nextNodeId) {
 345
 346         Map<String, Double> txPowerRangeMap = getTxPowerRangeMap(inputNode, destTpId, nodeId, openroadmVersion);
 347         if (txPowerRangeMap == null) {
 348             return null;
 349             // return null here means return false in setPower()
 350         }
 351         BigDecimal powerVal =
 352             openroadmVersion == 3 ? DEFAULT_TPDR_PWR_400G : DEFAULT_TPDR_PWR_100G;
 353         if (txPowerRangeMap.isEmpty()) {
 354             LOG.info("Tranponder range not available setting to default power for nodeId: {}", nodeId);
 355             return powerVal;
 356         }
 357
 358         Map<String, Double> rxSRGPowerRangeMap = getSRGRxPowerRangeMap(srgId, nextNodeId, openroadmVersion);
 359         if (rxSRGPowerRangeMap == null) {
 360             return null;
 361             // return null here means return false in setPower()
 362             // TODO empty txPowerRangeMap + null rxSRGPowerRangeMap is allowed
 363             // => confirm this behavior is OK
 364         }
 365         if (rxSRGPowerRangeMap.isEmpty()) {
 366             LOG.info("SRG Power Range not found, setting the Transponder range to default");
 367             return powerVal;
 368         }
 369
 370         powerVal = new BigDecimal(txPowerRangeMap.get("MaxTx"))
 371             .min(new BigDecimal(rxSRGPowerRangeMap.get("MaxRx")));
 372         LOG.info("Calculated Transponder Power value is {}" , powerVal);
 373         return powerVal;
 374     }
 375
 376
 377     private BigDecimal getRdmPowerValue(BigDecimal spanLossTx, ServicePowerSetupInput input) {
 378         // TODO: These values will be obtained from the specifications
 379         // power-value here refers to the Pin[50GHz]
 380         BigDecimal powerValue;
 381         if (spanLossTx.doubleValue()  >= 23.0) {
 382             powerValue = BigDecimal.valueOf(2.0);
 383         } else if (spanLossTx.doubleValue()  >= 8.0) {
 384             powerValue = BigDecimal.valueOf(- (8.0 - spanLossTx.doubleValue()) / 3.0 - 3.0);
 385         } else if (spanLossTx.doubleValue() >= 6.0) {
 386             powerValue = BigDecimal.valueOf(-3.0);
 387         } else {
 388             powerValue = spanLossTx.subtract(BigDecimal.valueOf(9));
 389         }
 390         BigDecimal mcWidth = new BigDecimal(50);
 391         // we work at constant power spectral density (50 GHz channel width @-20dBm=37.5GHz)
 392         // 87.5 GHz channel width @-20dBm=75GHz
 393         if (input.getMcWidth() != null) {
 394             // Units of MC-width are in GHz, meaning it should be 40/50/87.5GHz
 395             // TODO: Should we validate this units before proceeding?
 396             LOG.debug("Input Grid size is {}", input.getMcWidth().getValue());
 397
 398             // We round-off the mc-width to the nearest grid-value based on the granularity of 12.5 GHz
 399             double nbrMcSlots = Math.ceil(input.getMcWidth().getValue().doubleValue() / MC_WIDTH_GRAN);
 400             LOG.debug("Nearest (ceil) number of slots {}", nbrMcSlots);
 401             mcWidth = new BigDecimal(MC_WIDTH_GRAN * nbrMcSlots);
 402             LOG.debug("Given mc-width={}, Rounded mc-width={}", input.getMcWidth().getValue(), mcWidth);
 403
 404             BigDecimal logVal = mcWidth.divide(new BigDecimal(50));
 405             double pdsVal = 10 * Math.log10(logVal.doubleValue());
 406             // Addition of PSD value will give Pin[87.5 GHz]
 407             powerValue = powerValue.add(new BigDecimal(pdsVal, new MathContext(3, RoundingMode.HALF_EVEN)));
 408         }
 409         // FIXME compliancy with OpenROADM MSA and approximations used -- should be addressed with powermask update
 410         // cf JIRA ticket https://jira.opendaylight.org/browse/TRNSPRTPCE-494
 411         powerValue = powerValue.setScale(2, RoundingMode.CEILING);
 412         // target-output-power yang precision is 2, so we limit here to 2
 413         LOG.info("The power value is P1[{}GHz]={} dB for spanloss {}", mcWidth, powerValue, spanLossTx);
 414         return powerValue;
 415     }
 416
 417     /**
 418      * This methods turns down power a WL by performing
 419      * following steps:
 420      *
 421      * <p>
 422      * 1. Pull interfaces used in service and change
 423      * status to outOfService
 424      *
 425      * <p>
 426      * 2. For each of the ROADM node set target-output-power
 427      * to -60dbm, wait for 20 seconds, turn power mode to off
 428      *
 429      * <p>
 430      * 3. Turn down power in Z to A direction and A to Z
 431      *
 432      * @param input
 433      *            Input parameter from the olm servicePowerTurndown rpc
 434      *
 435      * @return true/false based on status of operation
 436      */
 437     public Boolean powerTurnDown(ServicePowerTurndownInput input) {
 438         LOG.info("Olm-powerTurnDown initiated for input {}", input);
 439         /*Starting with last element into the list Z -> A for
 440           turning down A -> Z */
 441         String spectralSlotName = String.join(GridConstant.SPECTRAL_SLOT_SEPARATOR,
 442                 input.getLowerSpectralSlotNumber().toString(),
 443                 input.getHigherSpectralSlotNumber().toString());
 444         for (int i = input.getNodes().size() - 1; i >= 0; i--) {
 445             String nodeId = input.getNodes().get(i).getNodeId();
 446             String destTpId = input.getNodes().get(i).getDestTp();
 447             String connectionNumber =  String.join(GridConstant.NAME_PARAMETERS_SEPARATOR,
 448                     input.getNodes().get(i).getSrcTp(), destTpId, spectralSlotName);
 449             try {
 450                 if (destTpId.toUpperCase(Locale.getDefault()).contains("DEG")) {
 451                     if (!crossConnect.setPowerLevel(nodeId, OpticalControlMode.Power.getName(),
 452                             Decimal64.valueOf("-60"), connectionNumber)) {
 453                         LOG.warn("Power down failed for Roadm-connection: {}", connectionNumber);
 454                         return false;
 455                     }
 456                     Thread.sleep(timer2);
 457                     if (!crossConnect.setPowerLevel(nodeId, OpticalControlMode.Off.getName(), null, connectionNumber)) {
 458                         LOG.warn("Setting power-control mode off failed for Roadm-connection: {}", connectionNumber);
 459                         return false;
 460                     }
 461                 } else if (destTpId.toUpperCase(Locale.getDefault()).contains("SRG")) {
 462                     if (!crossConnect.setPowerLevel(nodeId, OpticalControlMode.Off.getName(), null, connectionNumber)) {
 463                         LOG.warn("Setting power-control mode off failed for Roadm-connection: {}", connectionNumber);
 464                         // FIXME a return false would allow sync with DEG case but makes current Unit tests fail
 465                     }
 466                 }
 467             } catch (InterruptedException e) {
 468                 // TODO Auto-generated catch block
 469                 LOG.error("Olm-powerTurnDown wait failed: ",e);
 470                 return false;
 471             }
 472         }
 473         return true;
 474     }
 475
 476     /**
 477      * This method retrieves transponder OCH interface and
 478      * sets power.
 479      *
 480      * @param nodeId
 481      *            Unique identifier for the mounted netconf- node
 482      * @param interfaceName
 483      *            OCH interface name carrying WL
 484      * @param txPower
 485      *            Calculated transmit power
 486      * @param openroadmVersion
 487      *            Version of openRoadm device software
 488      * @return true/false based on status of operation
 489      */
 490     private boolean callSetTransponderPower(String nodeId, String interfaceName, BigDecimal txPower,
 491                                             OpenroadmNodeVersion openroadmVersion) {
 492
 493         boolean powerSetupResult = false;
 494         try {
 495             switch (openroadmVersion.getIntValue()) {
 496                 case 1:
 497                     Optional<Interface> interfaceOptional121 =
 498                         openRoadmInterfaces.getInterface(nodeId, interfaceName);
 499                     if (interfaceOptional121.isEmpty()) {
 500                         LOG.error(INTERFACE_NOT_PRESENT, interfaceName, nodeId);
 501                         return false;
 502                     }
 503                     powerSetupResult = PowerMgmtVersion121.setTransponderPower(nodeId, interfaceName,
 504                             txPower, deviceTransactionManager, interfaceOptional121.get());
 505                     break;
 506                 case 2:
 507                     Optional<org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev181019.interfaces.grp
 508                             .Interface> interfaceOptional221 =
 509                         openRoadmInterfaces.getInterface(nodeId, interfaceName);
 510                     if (interfaceOptional221.isEmpty()) {
 511                         LOG.error(INTERFACE_NOT_PRESENT, interfaceName, nodeId);
 512                         return false;
 513                     }
 514                     powerSetupResult = PowerMgmtVersion221.setTransponderPower(nodeId, interfaceName,
 515                             txPower, deviceTransactionManager, interfaceOptional221.get());
 516                     break;
 517                 case 3:
 518                     Optional<org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev200529.interfaces.grp
 519                             .Interface> interfaceOptional710 =
 520                         openRoadmInterfaces.getInterface(nodeId, interfaceName);
 521                     if (interfaceOptional710.isEmpty()) {
 522                         LOG.error(INTERFACE_NOT_PRESENT, interfaceName, nodeId);
 523                         return false;
 524                     }
 525                     powerSetupResult = PowerMgmtVersion710.setTransponderPower(nodeId, interfaceName,
 526                             txPower, deviceTransactionManager, interfaceOptional710.get());
 527                     break;
 528                 default:
 529                     LOG.error("Unrecognized OpenRoadm version");
 530                     return false;
 531             }
 532         } catch (OpenRoadmInterfaceException ex) {
 533             LOG.error("Failed to get interface {} from node {}!", interfaceName, nodeId, ex);
 534             return false;
 535         }
 536         if (!powerSetupResult) {
 537             LOG.debug("Transponder power setup failed for nodeId {} on interface {}",
 538                     nodeId, interfaceName);
 539             return false;
 540         }
 541         LOG.debug("Transponder power set up completed successfully for nodeId {} and interface {}",
 542                 nodeId,interfaceName);
 543         return true;
 544     }
 545
 546 }