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

   1 // Partial Copyright Jerome Benoit. 2021. All Rights Reserved.
   2
   3 import fs from 'fs';
   4 import path from 'path';
   5 import { fileURLToPath } from 'url';
   6
   7 import { JSONSchemaType } from 'ajv';
   8
   9 import OCPPError from '../../../exception/OCPPError';
  10 import { 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 {
  15   OCPP16MeterValuesRequest,
  16   OCPP16MeterValuesResponse,
  17 } from '../../../types/ocpp/1.6/MeterValues';
  18 import {
  19   OCPP16BootNotificationRequest,
  20   OCPP16RequestCommand,
  21   OCPP16StatusNotificationRequest,
  22 } from '../../../types/ocpp/1.6/Requests';
  23 import {
  24   DiagnosticsStatusNotificationResponse,
  25   OCPP16BootNotificationResponse,
  26   OCPP16HeartbeatResponse,
  27   OCPP16RegistrationStatus,
  28   OCPP16StatusNotificationResponse,
  29 } from '../../../types/ocpp/1.6/Responses';
  30 import {
  31   OCPP16AuthorizationStatus,
  32   OCPP16AuthorizeRequest,
  33   OCPP16AuthorizeResponse,
  34   OCPP16StartTransactionRequest,
  35   OCPP16StartTransactionResponse,
  36   OCPP16StopTransactionRequest,
  37   OCPP16StopTransactionResponse,
  38 } from '../../../types/ocpp/1.6/Transaction';
  39 import { ErrorType } from '../../../types/ocpp/ErrorType';
  40 import { ResponseHandler } from '../../../types/ocpp/Responses';
  41 import logger from '../../../utils/Logger';
  42 import Utils from '../../../utils/Utils';
  43 import type ChargingStation from '../../ChargingStation';
  44 import { ChargingStationConfigurationUtils } from '../../ChargingStationConfigurationUtils';
  45 import { ChargingStationUtils } from '../../ChargingStationUtils';
  46 import OCPPResponseService from '../OCPPResponseService';
  47 import { OCPP16ServiceUtils } from './OCPP16ServiceUtils';
  48
  49 const moduleName = 'OCPP16ResponseService';
  50
  51 export default class OCPP16ResponseService extends OCPPResponseService {
  52   private responseHandlers: Map<OCPP16RequestCommand, ResponseHandler>;
  53   private jsonSchemas: Map<OCPP16RequestCommand, JSONSchemaType<JsonObject>>;
  54
  55   public constructor() {
  56     if (new.target?.name === moduleName) {
  57       throw new TypeError(`Cannot construct ${new.target?.name} instances directly`);
  58     }
  59     super();
  60     this.responseHandlers = new Map<OCPP16RequestCommand, ResponseHandler>([
  61       [OCPP16RequestCommand.BOOT_NOTIFICATION, this.handleResponseBootNotification.bind(this)],
  62       [OCPP16RequestCommand.HEARTBEAT, this.emptyResponseHandler.bind(this)],
  63       [OCPP16RequestCommand.AUTHORIZE, this.handleResponseAuthorize.bind(this)],
  64       [OCPP16RequestCommand.START_TRANSACTION, this.handleResponseStartTransaction.bind(this)],
  65       [OCPP16RequestCommand.STOP_TRANSACTION, this.handleResponseStopTransaction.bind(this)],
  66       [OCPP16RequestCommand.STATUS_NOTIFICATION, this.emptyResponseHandler.bind(this)],
  67       [OCPP16RequestCommand.METER_VALUES, this.emptyResponseHandler.bind(this)],
  68       [OCPP16RequestCommand.DIAGNOSTICS_STATUS_NOTIFICATION, this.emptyResponseHandler.bind(this)],
  69     ]);
  70     this.jsonSchemas = new Map<OCPP16RequestCommand, JSONSchemaType<JsonObject>>([
  71       [
  72         OCPP16RequestCommand.BOOT_NOTIFICATION,
  73         JSON.parse(
  74           fs.readFileSync(
  75             path.resolve(
  76               path.dirname(fileURLToPath(import.meta.url)),
  77               '../../../assets/json-schemas/ocpp/1.6/BootNotificationResponse.json'
  78             ),
  79             'utf8'
  80           )
  81         ) as JSONSchemaType<OCPP16BootNotificationResponse>,
  82       ],
  83       [
  84         OCPP16RequestCommand.HEARTBEAT,
  85         JSON.parse(
  86           fs.readFileSync(
  87             path.resolve(
  88               path.dirname(fileURLToPath(import.meta.url)),
  89               '../../../assets/json-schemas/ocpp/1.6/HeartbeatResponse.json'
  90             ),
  91             'utf8'
  92           )
  93         ) as JSONSchemaType<OCPP16HeartbeatResponse>,
  94       ],
  95       [
  96         OCPP16RequestCommand.AUTHORIZE,
  97         JSON.parse(
  98           fs.readFileSync(
  99             path.resolve(
 100               path.dirname(fileURLToPath(import.meta.url)),
 101               '../../../assets/json-schemas/ocpp/1.6/AuthorizeResponse.json'
 102             ),
 103             'utf8'
 104           )
 105         ) as JSONSchemaType<OCPP16AuthorizeResponse>,
 106       ],
 107       [
 108         OCPP16RequestCommand.START_TRANSACTION,
 109         JSON.parse(
 110           fs.readFileSync(
 111             path.resolve(
 112               path.dirname(fileURLToPath(import.meta.url)),
 113               '../../../assets/json-schemas/ocpp/1.6/StartTransactionResponse.json'
 114             ),
 115             'utf8'
 116           )
 117         ) as JSONSchemaType<OCPP16StartTransactionResponse>,
 118       ],
 119       [
 120         OCPP16RequestCommand.STOP_TRANSACTION,
 121         JSON.parse(
 122           fs.readFileSync(
 123             path.resolve(
 124               path.dirname(fileURLToPath(import.meta.url)),
 125               '../../../assets/json-schemas/ocpp/1.6/StopTransactionResponse.json'
 126             ),
 127             'utf8'
 128           )
 129         ) as JSONSchemaType<OCPP16StopTransactionResponse>,
 130       ],
 131       [
 132         OCPP16RequestCommand.STATUS_NOTIFICATION,
 133         JSON.parse(
 134           fs.readFileSync(
 135             path.resolve(
 136               path.dirname(fileURLToPath(import.meta.url)),
 137               '../../../assets/json-schemas/ocpp/1.6/StatusNotificationResponse.json'
 138             ),
 139             'utf8'
 140           )
 141         ) as JSONSchemaType<OCPP16StatusNotificationResponse>,
 142       ],
 143       [
 144         OCPP16RequestCommand.METER_VALUES,
 145         JSON.parse(
 146           fs.readFileSync(
 147             path.resolve(
 148               path.dirname(fileURLToPath(import.meta.url)),
 149               '../../../assets/json-schemas/ocpp/1.6/MeterValuesResponse.json'
 150             ),
 151             'utf8'
 152           )
 153         ) as JSONSchemaType<OCPP16MeterValuesResponse>,
 154       ],
 155       [
 156         OCPP16RequestCommand.DIAGNOSTICS_STATUS_NOTIFICATION,
 157         JSON.parse(
 158           fs.readFileSync(
 159             path.resolve(
 160               path.dirname(fileURLToPath(import.meta.url)),
 161               '../../../assets/json-schemas/ocpp/1.6/DiagnosticsStatusNotificationResponse.json'
 162             ),
 163             'utf8'
 164           )
 165         ) as JSONSchemaType<DiagnosticsStatusNotificationResponse>,
 166       ],
 167     ]);
 168   }
 169
 170   public async responseHandler(
 171     chargingStation: ChargingStation,
 172     commandName: OCPP16RequestCommand,
 173     payload: JsonType,
 174     requestPayload: JsonType
 175   ): Promise<void> {
 176     if (chargingStation.isRegistered() || commandName === OCPP16RequestCommand.BOOT_NOTIFICATION) {
 177       if (
 178         this.responseHandlers.has(commandName) &&
 179         ChargingStationUtils.isRequestCommandSupported(commandName, chargingStation)
 180       ) {
 181         try {
 182           this.validatePayload(chargingStation, commandName, payload);
 183           await this.responseHandlers.get(commandName)(chargingStation, payload, requestPayload);
 184         } catch (error) {
 185           logger.error(chargingStation.logPrefix() + ' Handle request response error: %j', error);
 186           throw error;
 187         }
 188       } else {
 189         // Throw exception
 190         throw new OCPPError(
 191           ErrorType.NOT_IMPLEMENTED,
 192           `${commandName} is not implemented to handle request response PDU ${JSON.stringify(
 193             payload,
 194             null,
 195             2
 196           )}`,
 197           commandName,
 198           payload
 199         );
 200       }
 201     } else {
 202       throw new OCPPError(
 203         ErrorType.SECURITY_ERROR,
 204         `${commandName} cannot be issued to handle request response PDU ${JSON.stringify(
 205           payload,
 206           null,
 207           2
 208         )} while the charging station is not registered on the central server. `,
 209         commandName,
 210         payload
 211       );
 212     }
 213   }
 214
 215   private validatePayload(
 216     chargingStation: ChargingStation,
 217     commandName: OCPP16RequestCommand,
 218     payload: JsonType
 219   ): boolean {
 220     if (this.jsonSchemas.has(commandName)) {
 221       return this.validateResponsePayload(
 222         chargingStation,
 223         commandName,
 224         this.jsonSchemas.get(commandName),
 225         payload
 226       );
 227     }
 228     logger.warn(
 229       `${chargingStation.logPrefix()} ${moduleName}.validatePayload: No JSON schema found for command ${commandName} PDU validation`
 230     );
 231     return false;
 232   }
 233
 234   private handleResponseBootNotification(
 235     chargingStation: ChargingStation,
 236     payload: OCPP16BootNotificationResponse
 237   ): void {
 238     if (payload.status === OCPP16RegistrationStatus.ACCEPTED) {
 239       ChargingStationConfigurationUtils.addConfigurationKey(
 240         chargingStation,
 241         OCPP16StandardParametersKey.HeartbeatInterval,
 242         payload.interval.toString(),
 243         {},
 244         { overwrite: true, save: true }
 245       );
 246       ChargingStationConfigurationUtils.addConfigurationKey(
 247         chargingStation,
 248         OCPP16StandardParametersKey.HeartBeatInterval,
 249         payload.interval.toString(),
 250         { visible: false },
 251         { overwrite: true, save: true }
 252       );
 253       chargingStation.heartbeatSetInterval
 254         ? chargingStation.restartHeartbeat()
 255         : chargingStation.startHeartbeat();
 256     }
 257     if (Object.values(OCPP16RegistrationStatus).includes(payload.status)) {
 258       const logMsg = `${chargingStation.logPrefix()} Charging station in '${
 259         payload.status
 260       }' state on the central server`;
 261       payload.status === OCPP16RegistrationStatus.REJECTED
 262         ? logger.warn(logMsg)
 263         : logger.info(logMsg);
 264     } else {
 265       logger.error(
 266         chargingStation.logPrefix() +
 267           ' Charging station boot notification response received: %j with undefined registration status',
 268         payload
 269       );
 270     }
 271   }
 272
 273   private handleResponseAuthorize(
 274     chargingStation: ChargingStation,
 275     payload: OCPP16AuthorizeResponse,
 276     requestPayload: OCPP16AuthorizeRequest
 277   ): void {
 278     let authorizeConnectorId: number;
 279     for (const connectorId of chargingStation.connectors.keys()) {
 280       if (
 281         connectorId > 0 &&
 282         chargingStation.getConnectorStatus(connectorId)?.authorizeIdTag === requestPayload.idTag
 283       ) {
 284         authorizeConnectorId = connectorId;
 285         break;
 286       }
 287     }
 288     if (payload.idTagInfo.status === OCPP16AuthorizationStatus.ACCEPTED) {
 289       chargingStation.getConnectorStatus(authorizeConnectorId).idTagAuthorized = true;
 290       logger.debug(
 291         `${chargingStation.logPrefix()} IdTag ${
 292           requestPayload.idTag
 293         } authorized on connector ${authorizeConnectorId}`
 294       );
 295     } else {
 296       chargingStation.getConnectorStatus(authorizeConnectorId).idTagAuthorized = false;
 297       delete chargingStation.getConnectorStatus(authorizeConnectorId).authorizeIdTag;
 298       logger.debug(
 299         `${chargingStation.logPrefix()} IdTag ${requestPayload.idTag} refused with status '${
 300           payload.idTagInfo.status
 301         }' on connector ${authorizeConnectorId}`
 302       );
 303     }
 304   }
 305
 306   private async handleResponseStartTransaction(
 307     chargingStation: ChargingStation,
 308     payload: OCPP16StartTransactionResponse,
 309     requestPayload: OCPP16StartTransactionRequest
 310   ): Promise<void> {
 311     const connectorId = requestPayload.connectorId;
 312
 313     let transactionConnectorId: number;
 314     for (const id of chargingStation.connectors.keys()) {
 315       if (id > 0 && id === connectorId) {
 316         transactionConnectorId = id;
 317         break;
 318       }
 319     }
 320     if (!transactionConnectorId) {
 321       logger.error(
 322         chargingStation.logPrefix() +
 323           ' Trying to start a transaction on a non existing connector Id ' +
 324           connectorId.toString()
 325       );
 326       return;
 327     }
 328     if (
 329       chargingStation.getConnectorStatus(connectorId).transactionRemoteStarted &&
 330       chargingStation.getAuthorizeRemoteTxRequests() &&
 331       chargingStation.getLocalAuthListEnabled() &&
 332       chargingStation.hasAuthorizedTags() &&
 333       !chargingStation.getConnectorStatus(connectorId).idTagLocalAuthorized
 334     ) {
 335       logger.error(
 336         chargingStation.logPrefix() +
 337           ' Trying to start a transaction with a not local authorized idTag ' +
 338           chargingStation.getConnectorStatus(connectorId).localAuthorizeIdTag +
 339           ' on connector Id ' +
 340           connectorId.toString()
 341       );
 342       await this.resetConnectorOnStartTransactionError(chargingStation, connectorId);
 343       return;
 344     }
 345     if (
 346       chargingStation.getConnectorStatus(connectorId).transactionRemoteStarted &&
 347       chargingStation.getAuthorizeRemoteTxRequests() &&
 348       chargingStation.getMayAuthorizeAtRemoteStart() &&
 349       !chargingStation.getConnectorStatus(connectorId).idTagLocalAuthorized &&
 350       !chargingStation.getConnectorStatus(connectorId).idTagAuthorized
 351     ) {
 352       logger.error(
 353         chargingStation.logPrefix() +
 354           ' Trying to start a transaction with a not authorized idTag ' +
 355           chargingStation.getConnectorStatus(connectorId).authorizeIdTag +
 356           ' on connector Id ' +
 357           connectorId.toString()
 358       );
 359       await this.resetConnectorOnStartTransactionError(chargingStation, connectorId);
 360       return;
 361     }
 362     if (
 363       chargingStation.getConnectorStatus(connectorId).idTagAuthorized &&
 364       chargingStation.getConnectorStatus(connectorId).authorizeIdTag !== requestPayload.idTag
 365     ) {
 366       logger.error(
 367         chargingStation.logPrefix() +
 368           ' Trying to start a transaction with an idTag ' +
 369           requestPayload.idTag +
 370           ' different from the authorize request one ' +
 371           chargingStation.getConnectorStatus(connectorId).authorizeIdTag +
 372           ' on connector Id ' +
 373           connectorId.toString()
 374       );
 375       await this.resetConnectorOnStartTransactionError(chargingStation, connectorId);
 376       return;
 377     }
 378     if (
 379       chargingStation.getConnectorStatus(connectorId).idTagLocalAuthorized &&
 380       chargingStation.getConnectorStatus(connectorId).localAuthorizeIdTag !== requestPayload.idTag
 381     ) {
 382       logger.error(
 383         chargingStation.logPrefix() +
 384           ' Trying to start a transaction with an idTag ' +
 385           requestPayload.idTag +
 386           ' different from the local authorized one ' +
 387           chargingStation.getConnectorStatus(connectorId).localAuthorizeIdTag +
 388           ' on connector Id ' +
 389           connectorId.toString()
 390       );
 391       await this.resetConnectorOnStartTransactionError(chargingStation, connectorId);
 392       return;
 393     }
 394     if (chargingStation.getConnectorStatus(connectorId)?.transactionStarted) {
 395       logger.debug(
 396         chargingStation.logPrefix() +
 397           ' Trying to start a transaction on an already used connector ' +
 398           connectorId.toString() +
 399           ': %j',
 400         chargingStation.getConnectorStatus(connectorId)
 401       );
 402       return;
 403     }
 404     if (
 405       chargingStation.getConnectorStatus(connectorId)?.status !==
 406         OCPP16ChargePointStatus.AVAILABLE &&
 407       chargingStation.getConnectorStatus(connectorId)?.status !== OCPP16ChargePointStatus.PREPARING
 408     ) {
 409       logger.error(
 410         `${chargingStation.logPrefix()} Trying to start a transaction on connector ${connectorId.toString()} with status ${
 411           chargingStation.getConnectorStatus(connectorId)?.status
 412         }`
 413       );
 414       return;
 415     }
 416     if (!Number.isInteger(payload.transactionId)) {
 417       logger.warn(
 418         `${chargingStation.logPrefix()} Trying to start a transaction on connector ${connectorId.toString()} with a non integer transaction Id ${
 419           payload.transactionId
 420         }, converting to integer`
 421       );
 422       payload.transactionId = Utils.convertToInt(payload.transactionId);
 423     }
 424
 425     if (payload.idTagInfo?.status === OCPP16AuthorizationStatus.ACCEPTED) {
 426       chargingStation.getConnectorStatus(connectorId).transactionStarted = true;
 427       chargingStation.getConnectorStatus(connectorId).transactionId = payload.transactionId;
 428       chargingStation.getConnectorStatus(connectorId).transactionIdTag = requestPayload.idTag;
 429       chargingStation.getConnectorStatus(
 430         connectorId
 431       ).transactionEnergyActiveImportRegisterValue = 0;
 432       chargingStation.getConnectorStatus(connectorId).transactionBeginMeterValue =
 433         OCPP16ServiceUtils.buildTransactionBeginMeterValue(
 434           chargingStation,
 435           connectorId,
 436           requestPayload.meterStart
 437         );
 438       chargingStation.getBeginEndMeterValues() &&
 439         (await chargingStation.ocppRequestService.requestHandler<
 440           OCPP16MeterValuesRequest,
 441           OCPP16MeterValuesResponse
 442         >(chargingStation, OCPP16RequestCommand.METER_VALUES, {
 443           connectorId,
 444           transactionId: payload.transactionId,
 445           meterValue: [chargingStation.getConnectorStatus(connectorId).transactionBeginMeterValue],
 446         }));
 447       await chargingStation.ocppRequestService.requestHandler<
 448         OCPP16StatusNotificationRequest,
 449         OCPP16StatusNotificationResponse
 450       >(chargingStation, OCPP16RequestCommand.STATUS_NOTIFICATION, {
 451         connectorId,
 452         status: OCPP16ChargePointStatus.CHARGING,
 453         errorCode: OCPP16ChargePointErrorCode.NO_ERROR,
 454       });
 455       chargingStation.getConnectorStatus(connectorId).status = OCPP16ChargePointStatus.CHARGING;
 456       logger.info(
 457         chargingStation.logPrefix() +
 458           ' Transaction ' +
 459           payload.transactionId.toString() +
 460           ' STARTED on ' +
 461           chargingStation.stationInfo.chargingStationId +
 462           '#' +
 463           connectorId.toString() +
 464           ' for idTag ' +
 465           requestPayload.idTag
 466       );
 467       if (chargingStation.stationInfo.powerSharedByConnectors) {
 468         chargingStation.powerDivider++;
 469       }
 470       const configuredMeterValueSampleInterval =
 471         ChargingStationConfigurationUtils.getConfigurationKey(
 472           chargingStation,
 473           OCPP16StandardParametersKey.MeterValueSampleInterval
 474         );
 475       chargingStation.startMeterValues(
 476         connectorId,
 477         configuredMeterValueSampleInterval
 478           ? Utils.convertToInt(configuredMeterValueSampleInterval.value) * 1000
 479           : 60000
 480       );
 481     } else {
 482       logger.warn(
 483         chargingStation.logPrefix() +
 484           ' Starting transaction id ' +
 485           payload.transactionId.toString() +
 486           " REJECTED with status '" +
 487           payload?.idTagInfo?.status +
 488           "', idTag " +
 489           requestPayload.idTag
 490       );
 491       await this.resetConnectorOnStartTransactionError(chargingStation, connectorId);
 492     }
 493   }
 494
 495   private async resetConnectorOnStartTransactionError(
 496     chargingStation: ChargingStation,
 497     connectorId: number
 498   ): Promise<void> {
 499     chargingStation.resetConnectorStatus(connectorId);
 500     if (
 501       chargingStation.getConnectorStatus(connectorId).status !== OCPP16ChargePointStatus.AVAILABLE
 502     ) {
 503       await chargingStation.ocppRequestService.requestHandler<
 504         OCPP16StatusNotificationRequest,
 505         OCPP16StatusNotificationResponse
 506       >(chargingStation, OCPP16RequestCommand.STATUS_NOTIFICATION, {
 507         connectorId,
 508         status: OCPP16ChargePointStatus.AVAILABLE,
 509         errorCode: OCPP16ChargePointErrorCode.NO_ERROR,
 510       });
 511       chargingStation.getConnectorStatus(connectorId).status = OCPP16ChargePointStatus.AVAILABLE;
 512     }
 513   }
 514
 515   private async handleResponseStopTransaction(
 516     chargingStation: ChargingStation,
 517     payload: OCPP16StopTransactionResponse,
 518     requestPayload: OCPP16StopTransactionRequest
 519   ): Promise<void> {
 520     const transactionConnectorId = chargingStation.getConnectorIdByTransactionId(
 521       requestPayload.transactionId
 522     );
 523     if (!transactionConnectorId) {
 524       logger.error(
 525         chargingStation.logPrefix() +
 526           ' Trying to stop a non existing transaction ' +
 527           requestPayload.transactionId.toString()
 528       );
 529       return;
 530     }
 531     if (payload.idTagInfo?.status === OCPP16AuthorizationStatus.ACCEPTED) {
 532       chargingStation.getBeginEndMeterValues() &&
 533         !chargingStation.getOcppStrictCompliance() &&
 534         chargingStation.getOutOfOrderEndMeterValues() &&
 535         (await chargingStation.ocppRequestService.requestHandler<
 536           OCPP16MeterValuesRequest,
 537           OCPP16MeterValuesResponse
 538         >(chargingStation, OCPP16RequestCommand.METER_VALUES, {
 539           connectorId: transactionConnectorId,
 540           transactionId: requestPayload.transactionId,
 541           meterValue: [
 542             OCPP16ServiceUtils.buildTransactionEndMeterValue(
 543               chargingStation,
 544               transactionConnectorId,
 545               requestPayload.meterStop
 546             ),
 547           ],
 548         }));
 549       if (
 550         !chargingStation.isChargingStationAvailable() ||
 551         !chargingStation.isConnectorAvailable(transactionConnectorId)
 552       ) {
 553         await chargingStation.ocppRequestService.requestHandler<
 554           OCPP16StatusNotificationRequest,
 555           OCPP16StatusNotificationResponse
 556         >(chargingStation, OCPP16RequestCommand.STATUS_NOTIFICATION, {
 557           connectorId: transactionConnectorId,
 558           status: OCPP16ChargePointStatus.UNAVAILABLE,
 559           errorCode: OCPP16ChargePointErrorCode.NO_ERROR,
 560         });
 561         chargingStation.getConnectorStatus(transactionConnectorId).status =
 562           OCPP16ChargePointStatus.UNAVAILABLE;
 563       } else {
 564         await chargingStation.ocppRequestService.requestHandler<
 565           OCPP16BootNotificationRequest,
 566           OCPP16BootNotificationResponse
 567         >(chargingStation, OCPP16RequestCommand.STATUS_NOTIFICATION, {
 568           connectorId: transactionConnectorId,
 569           status: OCPP16ChargePointStatus.AVAILABLE,
 570           errorCode: OCPP16ChargePointErrorCode.NO_ERROR,
 571         });
 572         chargingStation.getConnectorStatus(transactionConnectorId).status =
 573           OCPP16ChargePointStatus.AVAILABLE;
 574       }
 575       if (chargingStation.stationInfo.powerSharedByConnectors) {
 576         chargingStation.powerDivider--;
 577       }
 578       logger.info(
 579         chargingStation.logPrefix() +
 580           ' Transaction ' +
 581           requestPayload.transactionId.toString() +
 582           ' STOPPED on ' +
 583           chargingStation.stationInfo.chargingStationId +
 584           '#' +
 585           transactionConnectorId.toString()
 586       );
 587       chargingStation.resetConnectorStatus(transactionConnectorId);
 588     } else {
 589       logger.warn(
 590         chargingStation.logPrefix() +
 591           ' Stopping transaction id ' +
 592           requestPayload.transactionId.toString() +
 593           " REJECTED with status '" +
 594           payload.idTagInfo?.status +
 595           "'"
 596       );
 597     }
 598   }
 599 }