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