olm/src/main/java/org/opendaylight/transportpce/olm/power/PowerMgmt.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 com.google.common.util.concurrent.ListenableFuture;
  12
  13 import java.math.BigDecimal;
  14 import java.util.HashMap;
  15 import java.util.Map;
  16 import java.util.Optional;
  17 import java.util.concurrent.ExecutionException;
  18 import java.util.concurrent.Future;
  19
  20 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  21 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  22 import org.opendaylight.transportpce.common.Timeouts;
  23 import org.opendaylight.transportpce.common.crossconnect.CrossConnect;
  24 import org.opendaylight.transportpce.common.device.DeviceTransaction;
  25 import org.opendaylight.transportpce.common.device.DeviceTransactionManager;
  26 import org.opendaylight.transportpce.common.openroadminterfaces.OpenRoadmInterfaceException;
  27 import org.opendaylight.transportpce.common.openroadminterfaces.OpenRoadmInterfaces;
  28 import org.opendaylight.transportpce.olm.util.OlmUtils;
  29 import org.opendaylight.yang.gen.v1.http.org.openroadm.common.types.rev161014.NodeTypes;
  30 import org.opendaylight.yang.gen.v1.http.org.openroadm.common.types.rev161014.OpticalControlMode;
  31 import org.opendaylight.yang.gen.v1.http.org.openroadm.common.types.rev161014.PowerDBm;
  32 import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev170206.circuit.pack.Ports;
  33 import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev170206.circuit.pack.PortsKey;
  34 import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev170206.circuit.packs.CircuitPacks;
  35 import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev170206.circuit.packs.CircuitPacksKey;
  36 import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev170206.interfaces.grp.Interface;
  37 import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev170206.interfaces.grp.InterfaceBuilder;
  38 import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev170206.interfaces.grp.InterfaceKey;
  39 import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev170206.org.openroadm.device.container.OrgOpenroadmDevice;
  40 import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev170206.org.openroadm.device.container.org.openroadm.device.RoadmConnections;
  41 import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev170206.org.openroadm.device.container.org.openroadm.device.RoadmConnectionsBuilder;
  42 import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev170206.org.openroadm.device.container.org.openroadm.device.RoadmConnectionsKey;
  43 import org.opendaylight.yang.gen.v1.http.org.openroadm.equipment.states.types.rev161014.AdminStates;
  44 import org.opendaylight.yang.gen.v1.http.org.openroadm.optical.channel.interfaces.rev161014.Interface1Builder;
  45 import org.opendaylight.yang.gen.v1.http.org.openroadm.optical.channel.interfaces.rev161014.och.container.OchBuilder;
  46 import org.opendaylight.yang.gen.v1.http.org.openroadm.optical.transport.interfaces.rev161014.Interface1;
  47 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.olm.rev170418.ServicePowerSetupInput;
  48 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.olm.rev170418.ServicePowerTurndownInput;
  49 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.portmapping.rev170228.network.Nodes;
  50 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.portmapping.rev170228.network.nodes.Mapping;
  51 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.portmapping.rev170228.network.nodes.MappingKey;
  52 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  53 import org.slf4j.Logger;
  54 import org.slf4j.LoggerFactory;
  55
  56 public class PowerMgmt {
  57     private static final Logger LOG = LoggerFactory.getLogger(PowerMgmt.class);
  58     private static final long DATA_STORE_READ_TIMEOUT = 120;
  59     private final DataBroker db;
  60     private final OpenRoadmInterfaces openRoadmInterfaces;
  61     private final CrossConnect crossConnect;
  62     private final DeviceTransactionManager deviceTransactionManager;
  63
  64     public PowerMgmt(DataBroker db, OpenRoadmInterfaces openRoadmInterfaces,
  65             CrossConnect crossConnect, DeviceTransactionManager deviceTransactionManager) {
  66         this.db = db;
  67         this.openRoadmInterfaces = openRoadmInterfaces;
  68         this.crossConnect = crossConnect;
  69         this.deviceTransactionManager = deviceTransactionManager;
  70     }
  71
  72     /**
  73      * This methods measures power requirement for turning up a WL
  74      * from the Spanloss at OTS transmit direction and update
  75      * roadm-connection target-output-power.
  76      *
  77      * @param input
  78      *            Input parameter from the olm servicePowerSetup rpc
  79      *
  80      * @return true/false based on status of operation.
  81      */
  82     public Boolean setPower(ServicePowerSetupInput input) {
  83         LOG.info("Olm-setPower initiated");
  84         for (int i = 0; i < input.getNodes().size(); i++) {
  85             String nodeId = input.getNodes().get(i).getNodeId();
  86             String srcTpId =  input.getNodes().get(i).getSrcTp();
  87             String destTpId = input.getNodes().get(i).getDestTp();
  88             Optional<Nodes> inputNodeOptional = OlmUtils.getNode(nodeId, db);
  89             // If node type is transponder
  90             if (inputNodeOptional.isPresent()
  91                     && inputNodeOptional.get().getNodeType() != null
  92                     && inputNodeOptional.get().getNodeType().equals(NodeTypes.Xpdr)) {
  93
  94                 Nodes inputNode = inputNodeOptional.get();
  95                 LOG.info("Getting data from input node {}", inputNode.getNodeType());
  96                 LOG.info("Getting mapping data for node is {}", inputNode.getMapping().stream().filter(o -> o.getKey()
  97                         .equals(new MappingKey(destTpId))).findFirst().toString());
  98                 // If its A-End transponder
  99                 if (destTpId.toLowerCase().contains("network")) {
 100                     java.util.Optional<Mapping> mappingObject = inputNode.getMapping().stream().filter(o -> o.getKey()
 101                             .equals(new MappingKey(destTpId))).findFirst();
 102                     if (mappingObject.isPresent()) {
 103                         Map<String, Double> txPowerRangeMap = getXponderPowerRange(mappingObject.get()
 104                                 .getSupportingCircuitPackName(), mappingObject.get().getSupportingPort(), nodeId);
 105                         if (!txPowerRangeMap.isEmpty()) {
 106                             LOG.info("Transponder range exists for nodeId: {}", nodeId);
 107                             String srgId =  input.getNodes().get(i + 1).getSrcTp();
 108                             String nextNodeId = input.getNodes().get(i + 1).getNodeId();
 109
 110                             Map<String, Double> rxSRGPowerRangeMap = getSRGRxPowerRange(nextNodeId, srgId);
 111                             double powerValue = 0;
 112                             if (!rxSRGPowerRangeMap.isEmpty()) {
 113                                 LOG.info("SRG Rx Power range exists for nodeId: {}", nodeId);
 114                                 if (txPowerRangeMap.get("MaxTx")
 115                                         <= rxSRGPowerRangeMap.get("MaxRx")) {
 116                                     powerValue = txPowerRangeMap.get("MaxTx");
 117                                 } else if (rxSRGPowerRangeMap.get("MaxRx")
 118                                         < txPowerRangeMap.get("MaxTx")) {
 119                                     powerValue = rxSRGPowerRangeMap.get("MaxRx");
 120                                 }
 121                                 LOG.info("Calculated Transponder Power value is {}" , powerValue);
 122                                 String interfaceName = destTpId + "-" + input.getWaveNumber();
 123                                 if (setTransponderPower(nodeId, interfaceName, new BigDecimal(powerValue))) {
 124                                     LOG.info("Transponder OCH connection: {} power updated ", interfaceName);
 125                                     try {
 126                                         LOG.info("Now going in sleep mode");
 127                                         Thread.sleep(120000);
 128                                     } catch (InterruptedException e) {
 129                                         LOG.info("Transponder warmup failed for OCH connection: {}", interfaceName, e);
 130                                     }
 131                                 } else {
 132                                     LOG.info("Transponder OCH connection: {} power update failed ", interfaceName);
 133                                 }
 134                             } else {
 135                                 LOG.info("SRG Power Range not found");
 136                             }
 137                         } else {
 138                             LOG.info("Tranponder range not available seting to default "
 139                                     + "power for nodeId: {}", nodeId);
 140                             String interfaceName = destTpId + "-" + input.getWaveNumber();
 141                             if (setTransponderPower(nodeId, interfaceName, new BigDecimal(-5))) {
 142                                 LOG.info("Transponder OCH connection: {} power updated ", interfaceName);
 143                                 try {
 144                                     Thread.sleep(120000);
 145                                 } catch (InterruptedException e) {
 146                                     // TODO Auto-generated catch block
 147                                     LOG.info("Transponder warmup failed for OCH connection: {}", interfaceName, e);
 148                                 }
 149                             } else {
 150                                 LOG.info("Transponder OCH connection: {} power update failed ", interfaceName);
 151                             }
 152                         }
 153                     } else {
 154                         LOG.info("Mapping object not found for nodeId: {}", nodeId);
 155                         return false;
 156                     }
 157                 } else {
 158                     LOG.info("{} is a drop node. Net power settings needed", nodeId);
 159                 }
 160             } else if (inputNodeOptional.isPresent()
 161                     && inputNodeOptional.get().getNodeType() != null
 162                     && inputNodeOptional.get().getNodeType().equals(NodeTypes.Rdm)) {
 163                 // If Degree is transmitting end then set power
 164                 Nodes inputNode = inputNodeOptional.get();
 165                 LOG.info("This is a roadm device ");
 166                 String connectionNumber = srcTpId + "-" + destTpId + "-" + input.getWaveNumber();
 167                 LOG.info("Connection number is {}", connectionNumber);
 168                 if (destTpId.toLowerCase().contains("deg")) {
 169                     Optional<Mapping> mappingObjectOptional = inputNode.getMapping().stream().filter(o -> o.getKey()
 170                             .equals(new MappingKey(destTpId))).findFirst();
 171                     if (mappingObjectOptional.isPresent()) {
 172                         LOG.info("Dest point is Degree {}", mappingObjectOptional.get());
 173                         Mapping portMapping = mappingObjectOptional.get();
 174                         Optional<Interface> interfaceOpt;
 175                         try {
 176                             interfaceOpt = openRoadmInterfaces.getInterface(nodeId, portMapping.getSupportingOts());
 177                         } catch (OpenRoadmInterfaceException ex) {
 178                             LOG.error("Failed to get interface {} from node {}!", portMapping.getSupportingOts(),
 179                                     nodeId, ex);
 180                             return false;
 181                         }
 182                         if (interfaceOpt.isPresent()) {
 183                             BigDecimal spanLossTx = interfaceOpt.get().getAugmentation(Interface1.class).getOts()
 184                                     .getSpanLossTransmit().getValue();
 185                             LOG.info("Spanloss TX is {}", spanLossTx);
 186                             BigDecimal powerValue = BigDecimal.valueOf(Math.min(spanLossTx.doubleValue() - 9, 2));
 187                             LOG.info("Power Value is {}", powerValue);
 188                             try {
 189                                 Boolean setXconnPowerSuccessVal = setPowerLevel(nodeId,
 190                                         OpticalControlMode.Power, powerValue, connectionNumber);
 191                                 LOG.info("Success Value is {}", setXconnPowerSuccessVal);
 192                                 if (setXconnPowerSuccessVal) {
 193                                     LOG.info("Roadm-connection: {} updated ");
 194                                     //TODO - commented code because one vendor is not supporting
 195                                     //GainLoss with target-output-power
 196                                     Thread.sleep(20000);
 197                                     setPowerLevel(nodeId, OpticalControlMode.GainLoss, powerValue,
 198                                             connectionNumber);
 199                                 } else {
 200                                     LOG.info("Set Power failed for Roadm-connection: {} on Node: {}", connectionNumber,
 201                                             nodeId);
 202                                     return false;
 203                                 }
 204                             } catch (InterruptedException e) {
 205                                 LOG.error("Olm-setPower wait failed {}", e);
 206                                 return false;
 207                             }
 208                         } else {
 209                             LOG.error("Interface {} on node {} is not present!", portMapping.getSupportingOts(),
 210                                     nodeId);
 211                             return false;
 212                         }
 213                     }
 214                   // If Drop node leave node is power mode
 215                 } else if (destTpId.toLowerCase().contains("srg")) {
 216                     LOG.info("Setting power at drop node");
 217                     setPowerLevel(nodeId, OpticalControlMode.Power, null, connectionNumber);
 218                 }
 219             }
 220         }
 221         return true;
 222     }
 223
 224     /**
 225      * This methods turns down power a WL by performing
 226      * following steps:
 227      *
 228      * <p>
 229      * 1. Pull interfaces used in service and change
 230      * status to outOfService
 231      *
 232      * <p>
 233      * 2. For each of the ROADM node set target-output-power
 234      * to -60dbm, wait for 20 seconds, turn power mode to off
 235      *
 236      * <p>
 237      * 3. Turn down power in Z to A direction and A to Z
 238      *
 239      * @param input
 240      *            Input parameter from the olm servicePowerTurndown rpc
 241      *
 242      * @return true/false based on status of operation
 243      */
 244     public Boolean powerTurnDown(ServicePowerTurndownInput input) {
 245         LOG.info("Olm-powerTurnDown initiated");
 246         /*Starting with last element into the list Z -> A for
 247           turning down A -> Z */
 248         for (int i = input.getNodes().size() - 1; i >= 0; i--) {
 249             String nodeId = input.getNodes().get(i).getNodeId();
 250             String srcTpId =  input.getNodes().get(i).getSrcTp();
 251             String destTpId = input.getNodes().get(i).getDestTp();
 252             Long wlNumber = input.getWaveNumber();
 253             String srcInterfaceName = srcTpId + "-" + wlNumber;
 254             //if (!setInterfaceOutOfService(nodeId, srcTpId, srcInterfaceName, deviceDb)) {
 255             //    LOG.warn("Out of service status update failed for interface {} ", srcInterfaceName);
 256             //    return false;
 257             //}
 258             String destInterfaceName = destTpId + "-" + wlNumber;
 259             //if (!setInterfaceOutOfService(nodeId, destTpId, destInterfaceName, deviceDb)) {
 260             //    LOG.warn("Out of service status update failed for interface {} ", destInterfaceName);
 261             //    return false;
 262             //}
 263             String connectionNumber =  srcTpId + "-" + destTpId + "-" + wlNumber;
 264             if (destTpId.toLowerCase().contains("srg")) {
 265                 setPowerLevel(nodeId, OpticalControlMode.Off, null, connectionNumber);
 266             } else if (destTpId.toLowerCase().contains("deg")) {
 267                 try {
 268                     if (!setPowerLevel(nodeId, OpticalControlMode.Power, new BigDecimal(-60),
 269                             connectionNumber)) {
 270                         LOG.warn("Power down failed for Roadm-connection: {}", connectionNumber);
 271                         return false;
 272                     }
 273                     Thread.sleep(20000);
 274                     if (!setPowerLevel(nodeId, OpticalControlMode.Off, null, connectionNumber)) {
 275                         LOG.warn("Setting power-control mode off failed for Roadm-connection: {}", connectionNumber);
 276                         return false;
 277                     }
 278                 } catch (InterruptedException e) {
 279                     // TODO Auto-generated catch block
 280                     LOG.error("Olm-powerTurnDown wait failed {}",e);
 281                     return false;
 282                 }
 283             }
 284         }
 285         return true;
 286     }
 287
 288     /**
 289      * This method updates interface administrative state to
 290      * outOfService.
 291      *
 292      * @param nodeId
 293      *            Unique identifier for the mounted netconf- node
 294      * @param tpId
 295      *            Termination point of mounted netconf - node
 296      * @param interfaceName
 297      *            Name of interface which needs status update
 298      * @return true/false based on status of operation
 299      */
 300     private Boolean setInterfaceOutOfService(String nodeId, String tpId, String interfaceName) {
 301         InstanceIdentifier<Interface> interfacesIID = InstanceIdentifier
 302                 .create(OrgOpenroadmDevice.class)
 303                 .child(Interface.class, new InterfaceKey(interfaceName));
 304         Optional<Interface> nodeInterfaceOpt;
 305         try {
 306             nodeInterfaceOpt = openRoadmInterfaces.getInterface(nodeId, interfaceName);
 307         } catch (OpenRoadmInterfaceException ex) {
 308             LOG.error("Failed to get interface {} from node {}!", interfaceName, nodeId, ex);
 309             return false;
 310         }
 311         if (nodeInterfaceOpt.isPresent()) {
 312             InterfaceBuilder intfBuilder = new InterfaceBuilder(nodeInterfaceOpt.get());
 313             intfBuilder.setAdministrativeState(AdminStates.OutOfService);
 314             Future<Optional<DeviceTransaction>> deviceTxFuture = deviceTransactionManager.getDeviceTransaction(nodeId);
 315             DeviceTransaction deviceTx;
 316             try {
 317                 Optional<DeviceTransaction> deviceTxOpt = deviceTxFuture.get();
 318                 if (deviceTxOpt.isPresent()) {
 319                     deviceTx = deviceTxOpt.get();
 320                 } else {
 321                     LOG.error("Transaction for device {} was not found!", nodeId);
 322                     return false;
 323                 }
 324             } catch (InterruptedException | ExecutionException e) {
 325                 LOG.error("Unable to get transaction for device {}!", nodeId, e);
 326                 return false;
 327             }
 328             deviceTx.put(LogicalDatastoreType.CONFIGURATION, interfacesIID, intfBuilder.build());
 329             ListenableFuture<Void> submit = deviceTx.submit(Timeouts.DEVICE_WRITE_TIMEOUT,
 330                     Timeouts.DEVICE_WRITE_TIMEOUT_UNIT);
 331             try {
 332                 submit.get();
 333                 LOG.info("Successfully posted interface {}", interfaceName);
 334                 return true;
 335             } catch (InterruptedException | ExecutionException ex) {
 336                 LOG.warn("Failed to post {} ", interfaceName, ex);
 337                 return false;
 338             }
 339         } else {
 340             LOG.error("Interface {} on node {} is not present!", interfaceName, nodeId);
 341             return false;
 342         }
 343     }
 344
 345     /**
 346      * This method provides Transponder transmit power range.
 347      *
 348      * @param circuitPackName
 349      *            Transponder circuitPack name
 350      * @param portName
 351      *            Transponder port name
 352      * @param deviceId
 353      *            Databroker for the given device
 354      * @return HashMap holding Min and Max transmit power for given port
 355      */
 356     private Map<String, Double> getXponderPowerRange(String circuitPackName, String portName, String deviceId) {
 357         InstanceIdentifier<Ports> portIID = InstanceIdentifier.create(OrgOpenroadmDevice.class)
 358                 .child(CircuitPacks.class, new CircuitPacksKey(circuitPackName))
 359                 .child(Ports.class, new PortsKey(portName));
 360         Map<String, Double> powerRangeMap = new HashMap<>();
 361         LOG.info("Fetching logical Connection Point value for port {} at circuit pack {}", portName, circuitPackName);
 362         Optional<Ports> portObject =
 363                 deviceTransactionManager.getDataFromDevice(deviceId, LogicalDatastoreType.OPERATIONAL, portIID,
 364                         Timeouts.DEVICE_READ_TIMEOUT, Timeouts.DEVICE_READ_TIMEOUT_UNIT);
 365         if (portObject.isPresent()) {
 366             Ports port = portObject.get();
 367             if (port.getTransponderPort().getPortPowerCapabilityMaxTx() != null) {
 368                 powerRangeMap.put("MaxTx", port.getTransponderPort().getPortPowerCapabilityMaxTx().getValue()
 369                         .doubleValue());
 370                 powerRangeMap.put("MinTx", port.getTransponderPort().getPortPowerCapabilityMinTx().getValue()
 371                         .doubleValue());
 372             } else {
 373                 LOG.warn("Logical Connection Point value missing for {} {}", circuitPackName, port.getPortName());
 374             }
 375         }
 376         return powerRangeMap;
 377     }
 378
 379     /**
 380      * This method provides Transponder transmit power range.
 381      *
 382      * @param nodeId
 383      *            Unique identifier for the mounted netconf- node
 384      * @param srgId
 385      *            SRG Id connected to transponder
 386      * @return HashMap holding Min and Max transmit power for given port
 387      */
 388     private Map<String, Double> getSRGRxPowerRange(String nodeId, String srgId) {
 389         Map<String, Double> powerRangeMap = new HashMap<>();
 390         LOG.info("Coming inside Xpdr power range");
 391         Optional<Mapping> mappingSRGOptional = OlmUtils.getNode(nodeId, db).flatMap(node -> node.getMapping()
 392                 .stream().filter(o -> o.getKey()
 393                         .equals(new MappingKey(srgId))).findFirst());
 394         if (mappingSRGOptional.isPresent()) {
 395             LOG.info("Mapping object exists.");
 396             String circuitPackName = mappingSRGOptional.get().getSupportingCircuitPackName();
 397             String portName = mappingSRGOptional.get().getSupportingPort();
 398             InstanceIdentifier<Ports> portIID = InstanceIdentifier.create(OrgOpenroadmDevice.class)
 399                     .child(CircuitPacks.class, new CircuitPacksKey(circuitPackName))
 400                     .child(Ports.class, new PortsKey(portName));
 401
 402             LOG.info("Fetching logical Connection Point value for port {} at circuit pack {}{}", portName,
 403                     circuitPackName, portIID);
 404             Optional<Ports> portObject =
 405                     deviceTransactionManager.getDataFromDevice(nodeId, LogicalDatastoreType.OPERATIONAL, portIID,
 406                             Timeouts.DEVICE_READ_TIMEOUT, Timeouts.DEVICE_READ_TIMEOUT_UNIT);
 407             if (portObject.isPresent()) {
 408                 Ports port = portObject.get();
 409                 if (port.getRoadmPort() != null) {
 410                     LOG.info("Port found on the node ID");
 411                     powerRangeMap.put("MinRx", port.getRoadmPort()
 412                             .getPortPowerCapabilityMinRx().getValue().doubleValue());
 413                     powerRangeMap.put("MaxRx", port.getRoadmPort()
 414                             .getPortPowerCapabilityMaxRx().getValue().doubleValue());
 415                     return powerRangeMap;
 416                 } else {
 417                     LOG.warn("Roadm ports power value is missing for {} {}", circuitPackName, port.getPortName());
 418                 }
 419             } else {
 420                 LOG.info("Port not found");
 421             }
 422
 423         } else {
 424             LOG.info("Port mapping not found for nodeId: {} and srgId: {} ",
 425                     nodeId, srgId);
 426         }
 427         return powerRangeMap;
 428
 429     }
 430
 431     /**
 432      * This method retrieves transponder OCH interface and
 433      * sets power.
 434      *
 435      * @param nodeId
 436      *            Unique identifier for the mounted netconf- node
 437      * @param interfaceName
 438      *            OCH interface name carrying WL
 439      * @param txPower
 440      *            Calculated transmit power
 441      * @return true/false based on status of operation
 442      */
 443     private boolean setTransponderPower(String nodeId, String interfaceName, BigDecimal txPower) {
 444         LOG.info("Setting target-power for transponder nodeId: {} InterfaceName: {}",
 445                 nodeId, interfaceName);
 446         Optional<Interface> interfaceOptional;
 447         try {
 448             interfaceOptional = openRoadmInterfaces.getInterface(nodeId, interfaceName);
 449         } catch (OpenRoadmInterfaceException ex) {
 450             LOG.error("Failed to get interface {} from node {}!", interfaceName, nodeId, ex);
 451             return false;
 452         }
 453         if (interfaceOptional.isPresent()) {
 454             InterfaceBuilder ochInterfaceBuilder =
 455                     new InterfaceBuilder(interfaceOptional.get());
 456             OchBuilder ochBuilder = new OchBuilder(ochInterfaceBuilder.getAugmentation(
 457                     org.opendaylight.yang.gen.v1.http.org.openroadm.optical.channel.interfaces.rev161014
 458                             .Interface1.class).getOch());
 459             ochBuilder.setTransmitPower(new PowerDBm(txPower));
 460             ochInterfaceBuilder.addAugmentation(
 461                     org.opendaylight.yang.gen.v1.http.org.openroadm.optical.channel.interfaces.rev161014
 462                             .Interface1.class, new Interface1Builder().setOch(ochBuilder.build()).build());
 463
 464             Future<Optional<DeviceTransaction>> deviceTxFuture = deviceTransactionManager.getDeviceTransaction(nodeId);
 465             DeviceTransaction deviceTx;
 466             try {
 467                 Optional<DeviceTransaction> deviceTxOpt = deviceTxFuture.get();
 468                 if (deviceTxOpt.isPresent()) {
 469                     deviceTx = deviceTxOpt.get();
 470                 } else {
 471                     LOG.error("Transaction for device {} was not found!", nodeId);
 472                     return false;
 473                 }
 474             } catch (InterruptedException | ExecutionException e) {
 475                 LOG.error("Unable to get transaction for device {}!", nodeId, e);
 476                 return false;
 477             }
 478
 479             InstanceIdentifier<Interface> interfacesIID = InstanceIdentifier.create(OrgOpenroadmDevice.class)
 480                     .child(Interface.class, new InterfaceKey(interfaceName));
 481             deviceTx.put(LogicalDatastoreType.CONFIGURATION, interfacesIID, ochInterfaceBuilder.build());
 482             ListenableFuture<Void> submit = deviceTx.submit(Timeouts.DEVICE_WRITE_TIMEOUT,
 483                     Timeouts.DEVICE_WRITE_TIMEOUT_UNIT);
 484             try {
 485                 submit.get();
 486                 LOG.info("Power update is submitted");
 487                 return true;
 488             } catch (InterruptedException | ExecutionException e) {
 489                 LOG.error("Setting transponder power failed {}", e);
 490             }
 491         } else {
 492             LOG.error("Interface {} on node {} is not present!", interfaceName, nodeId);
 493         }
 494         return false;
 495     }
 496
 497     /**
 498      * This method does an edit-config on roadm connection subtree for a given
 499      * connection number in order to set power level for use by the optical
 500      * power control.
 501      *
 502      * @param deviceId
 503      *            Device id.
 504      * @param mode
 505      *            Optical control modelcan be off, power or gainLoss.
 506      * @param powerValue
 507      *            Power value in DBm.
 508      * @param connectionNumber
 509      *            Name of the cross connect.
 510      * @return true/false based on status of operation.
 511      */
 512     private boolean setPowerLevel(String deviceId, OpticalControlMode mode, BigDecimal powerValue,
 513             String connectionNumber) {
 514         Optional<RoadmConnections> rdmConnOpt = crossConnect.getCrossConnect(deviceId, connectionNumber);
 515         if (rdmConnOpt.isPresent()) {
 516             RoadmConnectionsBuilder rdmConnBldr = new RoadmConnectionsBuilder(rdmConnOpt.get());
 517             rdmConnBldr.setOpticalControlMode(mode);
 518             if (powerValue != null) {
 519                 rdmConnBldr.setTargetOutputPower(new PowerDBm(powerValue));
 520             }
 521             RoadmConnections newRdmConn = rdmConnBldr.build();
 522
 523             Future<Optional<DeviceTransaction>> deviceTxFuture =
 524                     deviceTransactionManager.getDeviceTransaction(deviceId);
 525             DeviceTransaction deviceTx;
 526             try {
 527                 Optional<DeviceTransaction> deviceTxOpt = deviceTxFuture.get();
 528                 if (deviceTxOpt.isPresent()) {
 529                     deviceTx = deviceTxOpt.get();
 530                 } else {
 531                     LOG.error("Transaction for device {} was not found!", deviceId);
 532                     return false;
 533                 }
 534             } catch (InterruptedException | ExecutionException e) {
 535                 LOG.error("Unable to get transaction for device {}!", deviceId, e);
 536                 return false;
 537             }
 538
 539             // post the cross connect on the device
 540             InstanceIdentifier<RoadmConnections> roadmConnIID = InstanceIdentifier.create(OrgOpenroadmDevice.class)
 541                     .child(RoadmConnections.class, new RoadmConnectionsKey(connectionNumber));
 542             deviceTx.put(LogicalDatastoreType.CONFIGURATION, roadmConnIID, newRdmConn);
 543             ListenableFuture<Void> submit = deviceTx.submit(Timeouts.DEVICE_WRITE_TIMEOUT,
 544                     Timeouts.DEVICE_WRITE_TIMEOUT_UNIT);
 545             try {
 546                 submit.get();
 547                 LOG.info("Roadm connection power level successfully set ");
 548                 return true;
 549             } catch (InterruptedException | ExecutionException ex) {
 550                 LOG.warn("Failed to post {}", newRdmConn, ex);
 551             }
 552
 553         } else {
 554             LOG.warn("Roadm-Connection is null in set power level ({})", connectionNumber);
 555         }
 556         return false;
 557     }
 558
 559 }