src/charging-station/ocpp/1.6/OCPP16ResponseService.ts

   1 // Partial Copyright Jerome Benoit. 2021-2023. All Rights Reserved.
   2
   3 import fs from 'fs';
   4 import path from 'path';
   5 import { fileURLToPath } from 'url';
   6
   7 import type { JSONSchemaType } from 'ajv';
   8
   9 import OCPPError from '../../../exception/OCPPError';
  10 import type { JsonObject, JsonType } from '../../../types/JsonType';
  11 import { OCPP16ChargePointErrorCode } from '../../../types/ocpp/1.6/ChargePointErrorCode';
  12 import { OCPP16ChargePointStatus } from '../../../types/ocpp/1.6/ChargePointStatus';
  13 import { OCPP16StandardParametersKey } from '../../../types/ocpp/1.6/Configuration';
  14 import type {
  15   OCPP16MeterValuesRequest,
  16   OCPP16MeterValuesResponse,
  17 } from '../../../types/ocpp/1.6/MeterValues';
  18 import {
  19   type OCPP16BootNotificationRequest,
  20   OCPP16RequestCommand,
  21   type OCPP16StatusNotificationRequest,
  22 } from '../../../types/ocpp/1.6/Requests';
  23 import type {
  24   DiagnosticsStatusNotificationResponse,
  25   OCPP16BootNotificationResponse,
  26   OCPP16DataTransferResponse,
  27   OCPP16HeartbeatResponse,
  28   OCPP16StatusNotificationResponse,
  29 } from '../../../types/ocpp/1.6/Responses';
  30 import {
  31   OCPP16AuthorizationStatus,
  32   type OCPP16AuthorizeRequest,
  33   type OCPP16AuthorizeResponse,
  34   type OCPP16StartTransactionRequest,
  35   type OCPP16StartTransactionResponse,
  36   type OCPP16StopTransactionRequest,
  37   type OCPP16StopTransactionResponse,
  38 } from '../../../types/ocpp/1.6/Transaction';
  39 import { ErrorType } from '../../../types/ocpp/ErrorType';
  40 import { OCPPVersion } from '../../../types/ocpp/OCPPVersion';
  41 import { RegistrationStatusEnumType, type ResponseHandler } from '../../../types/ocpp/Responses';
  42 import Constants from '../../../utils/Constants';
  43 import logger from '../../../utils/Logger';
  44 import Utils from '../../../utils/Utils';
  45 import type ChargingStation from '../../ChargingStation';
  46 import { ChargingStationConfigurationUtils } from '../../ChargingStationConfigurationUtils';
  47 import OCPPResponseService from '../OCPPResponseService';
  48 import { OCPP16ServiceUtils } from './OCPP16ServiceUtils';
  49
  50 const moduleName = 'OCPP16ResponseService';
  51
  52 export default class OCPP16ResponseService extends OCPPResponseService {
  53   private responseHandlers: Map<OCPP16RequestCommand, ResponseHandler>;
  54   private jsonSchemas: Map<OCPP16RequestCommand, JSONSchemaType<JsonObject>>;
  55
  56   public constructor() {
  57     if (new.target?.name === moduleName) {
  58       throw new TypeError(`Cannot construct ${new.target?.name} instances directly`);
  59     }
  60     super(OCPPVersion.VERSION_16);
  61     this.responseHandlers = new Map<OCPP16RequestCommand, ResponseHandler>([
  62       [OCPP16RequestCommand.BOOT_NOTIFICATION, this.handleResponseBootNotification.bind(this)],
  63       [OCPP16RequestCommand.HEARTBEAT, this.emptyResponseHandler.bind(this)],
  64       [OCPP16RequestCommand.AUTHORIZE, this.handleResponseAuthorize.bind(this)],
  65       [OCPP16RequestCommand.START_TRANSACTION, this.handleResponseStartTransaction.bind(this)],
  66       [OCPP16RequestCommand.STOP_TRANSACTION, this.handleResponseStopTransaction.bind(this)],
  67       [OCPP16RequestCommand.STATUS_NOTIFICATION, this.emptyResponseHandler.bind(this)],
  68       [OCPP16RequestCommand.METER_VALUES, this.emptyResponseHandler.bind(this)],
  69       [OCPP16RequestCommand.DIAGNOSTICS_STATUS_NOTIFICATION, this.emptyResponseHandler.bind(this)],
  70       [OCPP16RequestCommand.DATA_TRANSFER, this.emptyResponseHandler.bind(this)],
  71     ]);
  72     this.jsonSchemas = new Map<OCPP16RequestCommand, JSONSchemaType<JsonObject>>([
  73       [
  74         OCPP16RequestCommand.BOOT_NOTIFICATION,
  75         JSON.parse(
  76           fs.readFileSync(
  77             path.resolve(
  78               path.dirname(fileURLToPath(import.meta.url)),
  79               '../../../assets/json-schemas/ocpp/1.6/BootNotificationResponse.json'
  80             ),
  81             'utf8'
  82           )
  83         ) as JSONSchemaType<OCPP16BootNotificationResponse>,
  84       ],
  85       [
  86         OCPP16RequestCommand.HEARTBEAT,
  87         JSON.parse(
  88           fs.readFileSync(
  89             path.resolve(
  90               path.dirname(fileURLToPath(import.meta.url)),
  91               '../../../assets/json-schemas/ocpp/1.6/HeartbeatResponse.json'
  92             ),
  93             'utf8'
  94           )
  95         ) as JSONSchemaType<OCPP16HeartbeatResponse>,
  96       ],
  97       [
  98         OCPP16RequestCommand.AUTHORIZE,
  99         JSON.parse(
 100           fs.readFileSync(
 101             path.resolve(
 102               path.dirname(fileURLToPath(import.meta.url)),
 103               '../../../assets/json-schemas/ocpp/1.6/AuthorizeResponse.json'
 104             ),
 105             'utf8'
 106           )
 107         ) as JSONSchemaType<OCPP16AuthorizeResponse>,
 108       ],
 109       [
 110         OCPP16RequestCommand.START_TRANSACTION,
 111         JSON.parse(
 112           fs.readFileSync(
 113             path.resolve(
 114               path.dirname(fileURLToPath(import.meta.url)),
 115               '../../../assets/json-schemas/ocpp/1.6/StartTransactionResponse.json'
 116             ),
 117             'utf8'
 118           )
 119         ) as JSONSchemaType<OCPP16StartTransactionResponse>,
 120       ],
 121       [
 122         OCPP16RequestCommand.STOP_TRANSACTION,
 123         JSON.parse(
 124           fs.readFileSync(
 125             path.resolve(
 126               path.dirname(fileURLToPath(import.meta.url)),
 127               '../../../assets/json-schemas/ocpp/1.6/StopTransactionResponse.json'
 128             ),
 129             'utf8'
 130           )
 131         ) as JSONSchemaType<OCPP16StopTransactionResponse>,
 132       ],
 133       [
 134         OCPP16RequestCommand.STATUS_NOTIFICATION,
 135         JSON.parse(
 136           fs.readFileSync(
 137             path.resolve(
 138               path.dirname(fileURLToPath(import.meta.url)),
 139               '../../../assets/json-schemas/ocpp/1.6/StatusNotificationResponse.json'
 140             ),
 141             'utf8'
 142           )
 143         ) as JSONSchemaType<OCPP16StatusNotificationResponse>,
 144       ],
 145       [
 146         OCPP16RequestCommand.METER_VALUES,
 147         JSON.parse(
 148           fs.readFileSync(
 149             path.resolve(
 150               path.dirname(fileURLToPath(import.meta.url)),
 151               '../../../assets/json-schemas/ocpp/1.6/MeterValuesResponse.json'
 152             ),
 153             'utf8'
 154           )
 155         ) as JSONSchemaType<OCPP16MeterValuesResponse>,
 156       ],
 157       [
 158         OCPP16RequestCommand.DIAGNOSTICS_STATUS_NOTIFICATION,
 159         JSON.parse(
 160           fs.readFileSync(
 161             path.resolve(
 162               path.dirname(fileURLToPath(import.meta.url)),
 163               '../../../assets/json-schemas/ocpp/1.6/DiagnosticsStatusNotificationResponse.json'
 164             ),
 165             'utf8'
 166           )
 167         ) as JSONSchemaType<DiagnosticsStatusNotificationResponse>,
 168       ],
 169       [
 170         OCPP16RequestCommand.DATA_TRANSFER,
 171         JSON.parse(
 172           fs.readFileSync(
 173             path.resolve(
 174               path.dirname(fileURLToPath(import.meta.url)),
 175               '../../../assets/json-schemas/ocpp/1.6/DataTransferResponse.json'
 176             ),
 177             'utf8'
 178           )
 179         ) as JSONSchemaType<OCPP16DataTransferResponse>,
 180       ],
 181     ]);
 182     this.validatePayload.bind(this);
 183   }
 184
 185   public async responseHandler(
 186     chargingStation: ChargingStation,
 187     commandName: OCPP16RequestCommand,
 188     payload: JsonType,
 189     requestPayload: JsonType
 190   ): Promise<void> {
 191     if (
 192       chargingStation.isRegistered() === true ||
 193       commandName === OCPP16RequestCommand.BOOT_NOTIFICATION
 194     ) {
 195       if (
 196         this.responseHandlers.has(commandName) === true &&
 197         OCPP16ServiceUtils.isRequestCommandSupported(chargingStation, commandName) === true
 198       ) {
 199         try {
 200           this.validatePayload(chargingStation, commandName, payload);
 201           await this.responseHandlers.get(commandName)(chargingStation, payload, requestPayload);
 202         } catch (error) {
 203           logger.error(
 204             `${chargingStation.logPrefix()} ${moduleName}.responseHandler: Handle response error:`,
 205             error
 206           );
 207           throw error;
 208         }
 209       } else {
 210         // Throw exception
 211         throw new OCPPError(
 212           ErrorType.NOT_IMPLEMENTED,
 213           `${commandName} is not implemented to handle response PDU ${JSON.stringify(
 214             payload,
 215             null,
 216             2
 217           )}`,
 218           commandName,
 219           payload
 220         );
 221       }
 222     } else {
 223       throw new OCPPError(
 224         ErrorType.SECURITY_ERROR,
 225         `${commandName} cannot be issued to handle response PDU ${JSON.stringify(
 226           payload,
 227           null,
 228           2
 229         )} while the charging station is not registered on the central server.`,
 230         commandName,
 231         payload
 232       );
 233     }
 234   }
 235
 236   private validatePayload(
 237     chargingStation: ChargingStation,
 238     commandName: OCPP16RequestCommand,
 239     payload: JsonType
 240   ): boolean {
 241     if (this.jsonSchemas.has(commandName) === true) {
 242       return this.validateResponsePayload(
 243         chargingStation,
 244         commandName,
 245         this.jsonSchemas.get(commandName),
 246         payload
 247       );
 248     }
 249     logger.warn(
 250       `${chargingStation.logPrefix()} ${moduleName}.validatePayload: No JSON schema found for command ${commandName} PDU validation`
 251     );
 252     return false;
 253   }
 254
 255   private handleResponseBootNotification(
 256     chargingStation: ChargingStation,
 257     payload: OCPP16BootNotificationResponse
 258   ): void {
 259     if (payload.status === RegistrationStatusEnumType.ACCEPTED) {
 260       ChargingStationConfigurationUtils.addConfigurationKey(
 261         chargingStation,
 262         OCPP16StandardParametersKey.HeartbeatInterval,
 263         payload.interval.toString(),
 264         {},
 265         { overwrite: true, save: true }
 266       );
 267       ChargingStationConfigurationUtils.addConfigurationKey(
 268         chargingStation,
 269         OCPP16StandardParametersKey.HeartBeatInterval,
 270         payload.interval.toString(),
 271         { visible: false },
 272         { overwrite: true, save: true }
 273       );
 274       chargingStation.heartbeatSetInterval
 275         ? chargingStation.restartHeartbeat()
 276         : chargingStation.startHeartbeat();
 277     }
 278     if (Object.values(RegistrationStatusEnumType).includes(payload.status)) {
 279       const logMsg = `${chargingStation.logPrefix()} Charging station in '${
 280         payload.status
 281       }' state on the central server`;
 282       payload.status === RegistrationStatusEnumType.REJECTED
 283         ? logger.warn(logMsg)
 284         : logger.info(logMsg);
 285     } else {
 286       logger.error(
 287         chargingStation.logPrefix() +
 288           ' Charging station boot notification response received: %j with undefined registration status',
 289         payload
 290       );
 291     }
 292   }
 293
 294   private handleResponseAuthorize(
 295     chargingStation: ChargingStation,
 296     payload: OCPP16AuthorizeResponse,
 297     requestPayload: OCPP16AuthorizeRequest
 298   ): void {
 299     let authorizeConnectorId: number;
 300     for (const connectorId of chargingStation.connectors.keys()) {
 301       if (
 302         connectorId > 0 &&
 303         chargingStation.getConnectorStatus(connectorId)?.authorizeIdTag === requestPayload.idTag
 304       ) {
 305         authorizeConnectorId = connectorId;
 306         break;
 307       }
 308     }
 309     const isAuthorizeConnectorIdDefined = authorizeConnectorId !== undefined;
 310     if (payload.idTagInfo.status === OCPP16AuthorizationStatus.ACCEPTED) {
 311       isAuthorizeConnectorIdDefined &&
 312         (chargingStation.getConnectorStatus(authorizeConnectorId).idTagAuthorized = true);
 313       logger.debug(
 314         `${chargingStation.logPrefix()} IdTag '${requestPayload.idTag}' accepted${
 315           isAuthorizeConnectorIdDefined ? ` on connector ${authorizeConnectorId}` : ''
 316         }`
 317       );
 318     } else {
 319       if (isAuthorizeConnectorIdDefined) {
 320         chargingStation.getConnectorStatus(authorizeConnectorId).idTagAuthorized = false;
 321         delete chargingStation.getConnectorStatus(authorizeConnectorId).authorizeIdTag;
 322       }
 323       logger.debug(
 324         `${chargingStation.logPrefix()} IdTag '${requestPayload.idTag}' rejected with status '${
 325           payload.idTagInfo.status
 326         }'${isAuthorizeConnectorIdDefined ? ` on connector ${authorizeConnectorId}` : ''}`
 327       );
 328     }
 329   }
 330
 331   private async handleResponseStartTransaction(
 332     chargingStation: ChargingStation,
 333     payload: OCPP16StartTransactionResponse,
 334     requestPayload: OCPP16StartTransactionRequest
 335   ): Promise<void> {
 336     const connectorId = requestPayload.connectorId;
 337
 338     let transactionConnectorId: number;
 339     for (const id of chargingStation.connectors.keys()) {
 340       if (id > 0 && id === connectorId) {
 341         transactionConnectorId = id;
 342         break;
 343       }
 344     }
 345     if (!transactionConnectorId) {
 346       logger.error(
 347         chargingStation.logPrefix() +
 348           ' Trying to start a transaction on a non existing connector Id ' +
 349           connectorId.toString()
 350       );
 351       return;
 352     }
 353     if (
 354       chargingStation.getConnectorStatus(connectorId).transactionRemoteStarted === true &&
 355       chargingStation.getAuthorizeRemoteTxRequests() === true &&
 356       chargingStation.getLocalAuthListEnabled() === true &&
 357       chargingStation.hasAuthorizedTags() &&
 358       chargingStation.getConnectorStatus(connectorId).idTagLocalAuthorized === false
 359     ) {
 360       logger.error(
 361         chargingStation.logPrefix() +
 362           ' Trying to start a transaction with a not local authorized idTag ' +
 363           chargingStation.getConnectorStatus(connectorId).localAuthorizeIdTag +
 364           ' on connector Id ' +
 365           connectorId.toString()
 366       );
 367       await this.resetConnectorOnStartTransactionError(chargingStation, connectorId);
 368       return;
 369     }
 370     if (
 371       chargingStation.getConnectorStatus(connectorId).transactionRemoteStarted === true &&
 372       chargingStation.getAuthorizeRemoteTxRequests() === true &&
 373       chargingStation.getMustAuthorizeAtRemoteStart() === true &&
 374       chargingStation.getConnectorStatus(connectorId).idTagLocalAuthorized === false &&
 375       chargingStation.getConnectorStatus(connectorId).idTagAuthorized === false
 376     ) {
 377       logger.error(
 378         chargingStation.logPrefix() +
 379           ' Trying to start a transaction with a not authorized idTag ' +
 380           chargingStation.getConnectorStatus(connectorId).authorizeIdTag +
 381           ' on connector Id ' +
 382           connectorId.toString()
 383       );
 384       await this.resetConnectorOnStartTransactionError(chargingStation, connectorId);
 385       return;
 386     }
 387     if (
 388       chargingStation.getConnectorStatus(connectorId).idTagAuthorized &&
 389       chargingStation.getConnectorStatus(connectorId).authorizeIdTag !== requestPayload.idTag
 390     ) {
 391       logger.error(
 392         chargingStation.logPrefix() +
 393           ' Trying to start a transaction with an idTag ' +
 394           requestPayload.idTag +
 395           ' different from the authorize request one ' +
 396           chargingStation.getConnectorStatus(connectorId).authorizeIdTag +
 397           ' on connector Id ' +
 398           connectorId.toString()
 399       );
 400       await this.resetConnectorOnStartTransactionError(chargingStation, connectorId);
 401       return;
 402     }
 403     if (
 404       chargingStation.getConnectorStatus(connectorId).idTagLocalAuthorized &&
 405       chargingStation.getConnectorStatus(connectorId).localAuthorizeIdTag !== requestPayload.idTag
 406     ) {
 407       logger.error(
 408         chargingStation.logPrefix() +
 409           ' Trying to start a transaction with an idTag ' +
 410           requestPayload.idTag +
 411           ' different from the local authorized one ' +
 412           chargingStation.getConnectorStatus(connectorId).localAuthorizeIdTag +
 413           ' on connector Id ' +
 414           connectorId.toString()
 415       );
 416       await this.resetConnectorOnStartTransactionError(chargingStation, connectorId);
 417       return;
 418     }
 419     if (chargingStation.getConnectorStatus(connectorId)?.transactionStarted === true) {
 420       logger.debug(
 421         chargingStation.logPrefix() +
 422           ' Trying to start a transaction on an already used connector ' +
 423           connectorId.toString() +
 424           ': %j',
 425         chargingStation.getConnectorStatus(connectorId)
 426       );
 427       return;
 428     }
 429     if (
 430       chargingStation.getConnectorStatus(connectorId)?.status !==
 431         OCPP16ChargePointStatus.AVAILABLE &&
 432       chargingStation.getConnectorStatus(connectorId)?.status !== OCPP16ChargePointStatus.PREPARING
 433     ) {
 434       logger.error(
 435         `${chargingStation.logPrefix()} Trying to start a transaction on connector ${connectorId.toString()} with status ${
 436           chargingStation.getConnectorStatus(connectorId)?.status
 437         }`
 438       );
 439       return;
 440     }
 441     // if (!Number.isInteger(payload.transactionId)) {
 442     //   logger.warn(
 443     //     `${chargingStation.logPrefix()} Trying to start a transaction on connector ${connectorId.toString()} with a non integer transaction Id ${
 444     //       payload.transactionId
 445     //     }, converting to integer`
 446     //   );
 447     //   payload.transactionId = Utils.convertToInt(payload.transactionId);
 448     // }
 449
 450     if (payload.idTagInfo?.status === OCPP16AuthorizationStatus.ACCEPTED) {
 451       chargingStation.getConnectorStatus(connectorId).transactionStarted = true;
 452       chargingStation.getConnectorStatus(connectorId).transactionId = payload.transactionId;
 453       chargingStation.getConnectorStatus(connectorId).transactionIdTag = requestPayload.idTag;
 454       chargingStation.getConnectorStatus(
 455         connectorId
 456       ).transactionEnergyActiveImportRegisterValue = 0;
 457       chargingStation.getConnectorStatus(connectorId).transactionBeginMeterValue =
 458         OCPP16ServiceUtils.buildTransactionBeginMeterValue(
 459           chargingStation,
 460           connectorId,
 461           requestPayload.meterStart
 462         );
 463       chargingStation.getBeginEndMeterValues() &&
 464         (await chargingStation.ocppRequestService.requestHandler<
 465           OCPP16MeterValuesRequest,
 466           OCPP16MeterValuesResponse
 467         >(chargingStation, OCPP16RequestCommand.METER_VALUES, {
 468           connectorId,
 469           transactionId: payload.transactionId,
 470           meterValue: [chargingStation.getConnectorStatus(connectorId).transactionBeginMeterValue],
 471         }));
 472       await chargingStation.ocppRequestService.requestHandler<
 473         OCPP16StatusNotificationRequest,
 474         OCPP16StatusNotificationResponse
 475       >(chargingStation, OCPP16RequestCommand.STATUS_NOTIFICATION, {
 476         connectorId,
 477         status: OCPP16ChargePointStatus.CHARGING,
 478         errorCode: OCPP16ChargePointErrorCode.NO_ERROR,
 479       });
 480       chargingStation.getConnectorStatus(connectorId).status = OCPP16ChargePointStatus.CHARGING;
 481       logger.info(
 482         chargingStation.logPrefix() +
 483           ' Transaction ' +
 484           payload.transactionId.toString() +
 485           ' STARTED on ' +
 486           chargingStation.stationInfo.chargingStationId +
 487           '#' +
 488           connectorId.toString() +
 489           " for idTag '" +
 490           requestPayload.idTag +
 491           "'"
 492       );
 493       if (chargingStation.stationInfo.powerSharedByConnectors) {
 494         chargingStation.powerDivider++;
 495       }
 496       const configuredMeterValueSampleInterval =
 497         ChargingStationConfigurationUtils.getConfigurationKey(
 498           chargingStation,
 499           OCPP16StandardParametersKey.MeterValueSampleInterval
 500         );
 501       chargingStation.startMeterValues(
 502         connectorId,
 503         configuredMeterValueSampleInterval
 504           ? Utils.convertToInt(configuredMeterValueSampleInterval.value) * 1000
 505           : Constants.DEFAULT_METER_VALUES_INTERVAL
 506       );
 507     } else {
 508       logger.warn(
 509         chargingStation.logPrefix() +
 510           ' Starting transaction id ' +
 511           payload.transactionId.toString() +
 512           " REJECTED with status '" +
 513           payload?.idTagInfo?.status +
 514           "', idTag '" +
 515           requestPayload.idTag +
 516           "'"
 517       );
 518       await this.resetConnectorOnStartTransactionError(chargingStation, connectorId);
 519     }
 520   }
 521
 522   private async resetConnectorOnStartTransactionError(
 523     chargingStation: ChargingStation,
 524     connectorId: number
 525   ): Promise<void> {
 526     chargingStation.resetConnectorStatus(connectorId);
 527     if (
 528       chargingStation.getConnectorStatus(connectorId).status !== OCPP16ChargePointStatus.AVAILABLE
 529     ) {
 530       await chargingStation.ocppRequestService.requestHandler<
 531         OCPP16StatusNotificationRequest,
 532         OCPP16StatusNotificationResponse
 533       >(chargingStation, OCPP16RequestCommand.STATUS_NOTIFICATION, {
 534         connectorId,
 535         status: OCPP16ChargePointStatus.AVAILABLE,
 536         errorCode: OCPP16ChargePointErrorCode.NO_ERROR,
 537       });
 538       chargingStation.getConnectorStatus(connectorId).status = OCPP16ChargePointStatus.AVAILABLE;
 539     }
 540   }
 541
 542   private async handleResponseStopTransaction(
 543     chargingStation: ChargingStation,
 544     payload: OCPP16StopTransactionResponse,
 545     requestPayload: OCPP16StopTransactionRequest
 546   ): Promise<void> {
 547     const transactionConnectorId = chargingStation.getConnectorIdByTransactionId(
 548       requestPayload.transactionId
 549     );
 550     if (!transactionConnectorId) {
 551       logger.error(
 552         chargingStation.logPrefix() +
 553           ' Trying to stop a non existing transaction ' +
 554           requestPayload.transactionId.toString()
 555       );
 556       return;
 557     }
 558     if (payload.idTagInfo?.status === OCPP16AuthorizationStatus.ACCEPTED) {
 559       chargingStation.getBeginEndMeterValues() === true &&
 560         chargingStation.getOcppStrictCompliance() === false &&
 561         chargingStation.getOutOfOrderEndMeterValues() === true &&
 562         (await chargingStation.ocppRequestService.requestHandler<
 563           OCPP16MeterValuesRequest,
 564           OCPP16MeterValuesResponse
 565         >(chargingStation, OCPP16RequestCommand.METER_VALUES, {
 566           connectorId: transactionConnectorId,
 567           transactionId: requestPayload.transactionId,
 568           meterValue: [
 569             OCPP16ServiceUtils.buildTransactionEndMeterValue(
 570               chargingStation,
 571               transactionConnectorId,
 572               requestPayload.meterStop
 573             ),
 574           ],
 575         }));
 576       if (
 577         chargingStation.isChargingStationAvailable() === false ||
 578         chargingStation.isConnectorAvailable(transactionConnectorId) === false
 579       ) {
 580         await chargingStation.ocppRequestService.requestHandler<
 581           OCPP16StatusNotificationRequest,
 582           OCPP16StatusNotificationResponse
 583         >(chargingStation, OCPP16RequestCommand.STATUS_NOTIFICATION, {
 584           connectorId: transactionConnectorId,
 585           status: OCPP16ChargePointStatus.UNAVAILABLE,
 586           errorCode: OCPP16ChargePointErrorCode.NO_ERROR,
 587         });
 588         chargingStation.getConnectorStatus(transactionConnectorId).status =
 589           OCPP16ChargePointStatus.UNAVAILABLE;
 590       } else {
 591         await chargingStation.ocppRequestService.requestHandler<
 592           OCPP16BootNotificationRequest,
 593           OCPP16BootNotificationResponse
 594         >(chargingStation, OCPP16RequestCommand.STATUS_NOTIFICATION, {
 595           connectorId: transactionConnectorId,
 596           status: OCPP16ChargePointStatus.AVAILABLE,
 597           errorCode: OCPP16ChargePointErrorCode.NO_ERROR,
 598         });
 599         chargingStation.getConnectorStatus(transactionConnectorId).status =
 600           OCPP16ChargePointStatus.AVAILABLE;
 601       }
 602       if (chargingStation.stationInfo.powerSharedByConnectors) {
 603         chargingStation.powerDivider--;
 604       }
 605       chargingStation.resetConnectorStatus(transactionConnectorId);
 606       logger.info(
 607         chargingStation.logPrefix() +
 608           ' Transaction ' +
 609           requestPayload.transactionId.toString() +
 610           ' STOPPED on ' +
 611           chargingStation.stationInfo.chargingStationId +
 612           '#' +
 613           transactionConnectorId.toString()
 614       );
 615     } else {
 616       logger.warn(
 617         chargingStation.logPrefix() +
 618           ' Stopping transaction id ' +
 619           requestPayload.transactionId.toString() +
 620           " REJECTED with status '" +
 621           payload.idTagInfo?.status +
 622           "'"
 623       );
 624     }
 625   }
 626 }