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     this.validatePayload.bind(this);
 169   }
 170
 171   public async responseHandler(
 172     chargingStation: ChargingStation,
 173     commandName: OCPP16RequestCommand,
 174     payload: JsonType,
 175     requestPayload: JsonType
 176   ): Promise<void> {
 177     if (chargingStation.isRegistered() || commandName === OCPP16RequestCommand.BOOT_NOTIFICATION) {
 178       if (
 179         this.responseHandlers.has(commandName) &&
 180         ChargingStationUtils.isRequestCommandSupported(commandName, chargingStation)
 181       ) {
 182         try {
 183           this.validatePayload(chargingStation, commandName, payload);
 184           await this.responseHandlers.get(commandName)(chargingStation, payload, requestPayload);
 185         } catch (error) {
 186           logger.error(chargingStation.logPrefix() + ' Handle request response error: %j', error);
 187           throw error;
 188         }
 189       } else {
 190         // Throw exception
 191         throw new OCPPError(
 192           ErrorType.NOT_IMPLEMENTED,
 193           `${commandName} is not implemented to handle request response PDU ${JSON.stringify(
 194             payload,
 195             null,
 196             2
 197           )}`,
 198           commandName,
 199           payload
 200         );
 201       }
 202     } else {
 203       throw new OCPPError(
 204         ErrorType.SECURITY_ERROR,
 205         `${commandName} cannot be issued to handle request response PDU ${JSON.stringify(
 206           payload,
 207           null,
 208           2
 209         )} while the charging station is not registered on the central server. `,
 210         commandName,
 211         payload
 212       );
 213     }
 214   }
 215
 216   private validatePayload(
 217     chargingStation: ChargingStation,
 218     commandName: OCPP16RequestCommand,
 219     payload: JsonType
 220   ): boolean {
 221     if (this.jsonSchemas.has(commandName)) {
 222       return this.validateResponsePayload(
 223         chargingStation,
 224         commandName,
 225         this.jsonSchemas.get(commandName),
 226         payload
 227       );
 228     }
 229     logger.warn(
 230       `${chargingStation.logPrefix()} ${moduleName}.validatePayload: No JSON schema found for command ${commandName} PDU validation`
 231     );
 232     return false;
 233   }
 234
 235   private handleResponseBootNotification(
 236     chargingStation: ChargingStation,
 237     payload: OCPP16BootNotificationResponse
 238   ): void {
 239     if (payload.status === OCPP16RegistrationStatus.ACCEPTED) {
 240       ChargingStationConfigurationUtils.addConfigurationKey(
 241         chargingStation,
 242         OCPP16StandardParametersKey.HeartbeatInterval,
 243         payload.interval.toString(),
 244         {},
 245         { overwrite: true, save: true }
 246       );
 247       ChargingStationConfigurationUtils.addConfigurationKey(
 248         chargingStation,
 249         OCPP16StandardParametersKey.HeartBeatInterval,
 250         payload.interval.toString(),
 251         { visible: false },
 252         { overwrite: true, save: true }
 253       );
 254       chargingStation.heartbeatSetInterval
 255         ? chargingStation.restartHeartbeat()
 256         : chargingStation.startHeartbeat();
 257     }
 258     if (Object.values(OCPP16RegistrationStatus).includes(payload.status)) {
 259       const logMsg = `${chargingStation.logPrefix()} Charging station in '${
 260         payload.status
 261       }' state on the central server`;
 262       payload.status === OCPP16RegistrationStatus.REJECTED
 263         ? logger.warn(logMsg)
 264         : logger.info(logMsg);
 265     } else {
 266       logger.error(
 267         chargingStation.logPrefix() +
 268           ' Charging station boot notification response received: %j with undefined registration status',
 269         payload
 270       );
 271     }
 272   }
 273
 274   private handleResponseAuthorize(
 275     chargingStation: ChargingStation,
 276     payload: OCPP16AuthorizeResponse,
 277     requestPayload: OCPP16AuthorizeRequest
 278   ): void {
 279     let authorizeConnectorId: number;
 280     for (const connectorId of chargingStation.connectors.keys()) {
 281       if (
 282         connectorId > 0 &&
 283         chargingStation.getConnectorStatus(connectorId)?.authorizeIdTag === requestPayload.idTag
 284       ) {
 285         authorizeConnectorId = connectorId;
 286         break;
 287       }
 288     }
 289     if (payload.idTagInfo.status === OCPP16AuthorizationStatus.ACCEPTED) {
 290       chargingStation.getConnectorStatus(authorizeConnectorId).idTagAuthorized = true;
 291       logger.debug(
 292         `${chargingStation.logPrefix()} IdTag ${
 293           requestPayload.idTag
 294         } authorized on connector ${authorizeConnectorId}`
 295       );
 296     } else {
 297       chargingStation.getConnectorStatus(authorizeConnectorId).idTagAuthorized = false;
 298       delete chargingStation.getConnectorStatus(authorizeConnectorId).authorizeIdTag;
 299       logger.debug(
 300         `${chargingStation.logPrefix()} IdTag ${requestPayload.idTag} refused with status '${
 301           payload.idTagInfo.status
 302         }' on connector ${authorizeConnectorId}`
 303       );
 304     }
 305   }
 306
 307   private async handleResponseStartTransaction(
 308     chargingStation: ChargingStation,
 309     payload: OCPP16StartTransactionResponse,
 310     requestPayload: OCPP16StartTransactionRequest
 311   ): Promise<void> {
 312     const connectorId = requestPayload.connectorId;
 313
 314     let transactionConnectorId: number;
 315     for (const id of chargingStation.connectors.keys()) {
 316       if (id > 0 && id === connectorId) {
 317         transactionConnectorId = id;
 318         break;
 319       }
 320     }
 321     if (!transactionConnectorId) {
 322       logger.error(
 323         chargingStation.logPrefix() +
 324           ' Trying to start a transaction on a non existing connector Id ' +
 325           connectorId.toString()
 326       );
 327       return;
 328     }
 329     if (
 330       chargingStation.getConnectorStatus(connectorId).transactionRemoteStarted &&
 331       chargingStation.getAuthorizeRemoteTxRequests() &&
 332       chargingStation.getLocalAuthListEnabled() &&
 333       chargingStation.hasAuthorizedTags() &&
 334       !chargingStation.getConnectorStatus(connectorId).idTagLocalAuthorized
 335     ) {
 336       logger.error(
 337         chargingStation.logPrefix() +
 338           ' Trying to start a transaction with a not local authorized idTag ' +
 339           chargingStation.getConnectorStatus(connectorId).localAuthorizeIdTag +
 340           ' on connector Id ' +
 341           connectorId.toString()
 342       );
 343       await this.resetConnectorOnStartTransactionError(chargingStation, connectorId);
 344       return;
 345     }
 346     if (
 347       chargingStation.getConnectorStatus(connectorId).transactionRemoteStarted &&
 348       chargingStation.getAuthorizeRemoteTxRequests() &&
 349       chargingStation.getMayAuthorizeAtRemoteStart() &&
 350       !chargingStation.getConnectorStatus(connectorId).idTagLocalAuthorized &&
 351       !chargingStation.getConnectorStatus(connectorId).idTagAuthorized
 352     ) {
 353       logger.error(
 354         chargingStation.logPrefix() +
 355           ' Trying to start a transaction with a not authorized idTag ' +
 356           chargingStation.getConnectorStatus(connectorId).authorizeIdTag +
 357           ' on connector Id ' +
 358           connectorId.toString()
 359       );
 360       await this.resetConnectorOnStartTransactionError(chargingStation, connectorId);
 361       return;
 362     }
 363     if (
 364       chargingStation.getConnectorStatus(connectorId).idTagAuthorized &&
 365       chargingStation.getConnectorStatus(connectorId).authorizeIdTag !== requestPayload.idTag
 366     ) {
 367       logger.error(
 368         chargingStation.logPrefix() +
 369           ' Trying to start a transaction with an idTag ' +
 370           requestPayload.idTag +
 371           ' different from the authorize request one ' +
 372           chargingStation.getConnectorStatus(connectorId).authorizeIdTag +
 373           ' on connector Id ' +
 374           connectorId.toString()
 375       );
 376       await this.resetConnectorOnStartTransactionError(chargingStation, connectorId);
 377       return;
 378     }
 379     if (
 380       chargingStation.getConnectorStatus(connectorId).idTagLocalAuthorized &&
 381       chargingStation.getConnectorStatus(connectorId).localAuthorizeIdTag !== requestPayload.idTag
 382     ) {
 383       logger.error(
 384         chargingStation.logPrefix() +
 385           ' Trying to start a transaction with an idTag ' +
 386           requestPayload.idTag +
 387           ' different from the local authorized one ' +
 388           chargingStation.getConnectorStatus(connectorId).localAuthorizeIdTag +
 389           ' on connector Id ' +
 390           connectorId.toString()
 391       );
 392       await this.resetConnectorOnStartTransactionError(chargingStation, connectorId);
 393       return;
 394     }
 395     if (chargingStation.getConnectorStatus(connectorId)?.transactionStarted) {
 396       logger.debug(
 397         chargingStation.logPrefix() +
 398           ' Trying to start a transaction on an already used connector ' +
 399           connectorId.toString() +
 400           ': %j',
 401         chargingStation.getConnectorStatus(connectorId)
 402       );
 403       return;
 404     }
 405     if (
 406       chargingStation.getConnectorStatus(connectorId)?.status !==
 407         OCPP16ChargePointStatus.AVAILABLE &&
 408       chargingStation.getConnectorStatus(connectorId)?.status !== OCPP16ChargePointStatus.PREPARING
 409     ) {
 410       logger.error(
 411         `${chargingStation.logPrefix()} Trying to start a transaction on connector ${connectorId.toString()} with status ${
 412           chargingStation.getConnectorStatus(connectorId)?.status
 413         }`
 414       );
 415       return;
 416     }
 417     if (!Number.isInteger(payload.transactionId)) {
 418       logger.warn(
 419         `${chargingStation.logPrefix()} Trying to start a transaction on connector ${connectorId.toString()} with a non integer transaction Id ${
 420           payload.transactionId
 421         }, converting to integer`
 422       );
 423       payload.transactionId = Utils.convertToInt(payload.transactionId);
 424     }
 425
 426     if (payload.idTagInfo?.status === OCPP16AuthorizationStatus.ACCEPTED) {
 427       chargingStation.getConnectorStatus(connectorId).transactionStarted = true;
 428       chargingStation.getConnectorStatus(connectorId).transactionId = payload.transactionId;
 429       chargingStation.getConnectorStatus(connectorId).transactionIdTag = requestPayload.idTag;
 430       chargingStation.getConnectorStatus(
 431         connectorId
 432       ).transactionEnergyActiveImportRegisterValue = 0;
 433       chargingStation.getConnectorStatus(connectorId).transactionBeginMeterValue =
 434         OCPP16ServiceUtils.buildTransactionBeginMeterValue(
 435           chargingStation,
 436           connectorId,
 437           requestPayload.meterStart
 438         );
 439       chargingStation.getBeginEndMeterValues() &&
 440         (await chargingStation.ocppRequestService.requestHandler<
 441           OCPP16MeterValuesRequest,
 442           OCPP16MeterValuesResponse
 443         >(chargingStation, OCPP16RequestCommand.METER_VALUES, {
 444           connectorId,
 445           transactionId: payload.transactionId,
 446           meterValue: [chargingStation.getConnectorStatus(connectorId).transactionBeginMeterValue],
 447         }));
 448       await chargingStation.ocppRequestService.requestHandler<
 449         OCPP16StatusNotificationRequest,
 450         OCPP16StatusNotificationResponse
 451       >(chargingStation, OCPP16RequestCommand.STATUS_NOTIFICATION, {
 452         connectorId,
 453         status: OCPP16ChargePointStatus.CHARGING,
 454         errorCode: OCPP16ChargePointErrorCode.NO_ERROR,
 455       });
 456       chargingStation.getConnectorStatus(connectorId).status = OCPP16ChargePointStatus.CHARGING;
 457       logger.info(
 458         chargingStation.logPrefix() +
 459           ' Transaction ' +
 460           payload.transactionId.toString() +
 461           ' STARTED on ' +
 462           chargingStation.stationInfo.chargingStationId +
 463           '#' +
 464           connectorId.toString() +
 465           ' for idTag ' +
 466           requestPayload.idTag
 467       );
 468       if (chargingStation.stationInfo.powerSharedByConnectors) {
 469         chargingStation.powerDivider++;
 470       }
 471       const configuredMeterValueSampleInterval =
 472         ChargingStationConfigurationUtils.getConfigurationKey(
 473           chargingStation,
 474           OCPP16StandardParametersKey.MeterValueSampleInterval
 475         );
 476       chargingStation.startMeterValues(
 477         connectorId,
 478         configuredMeterValueSampleInterval
 479           ? Utils.convertToInt(configuredMeterValueSampleInterval.value) * 1000
 480           : 60000
 481       );
 482     } else {
 483       logger.warn(
 484         chargingStation.logPrefix() +
 485           ' Starting transaction id ' +
 486           payload.transactionId.toString() +
 487           " REJECTED with status '" +
 488           payload?.idTagInfo?.status +
 489           "', idTag " +
 490           requestPayload.idTag
 491       );
 492       await this.resetConnectorOnStartTransactionError(chargingStation, connectorId);
 493     }
 494   }
 495
 496   private async resetConnectorOnStartTransactionError(
 497     chargingStation: ChargingStation,
 498     connectorId: number
 499   ): Promise<void> {
 500     chargingStation.resetConnectorStatus(connectorId);
 501     if (
 502       chargingStation.getConnectorStatus(connectorId).status !== OCPP16ChargePointStatus.AVAILABLE
 503     ) {
 504       await chargingStation.ocppRequestService.requestHandler<
 505         OCPP16StatusNotificationRequest,
 506         OCPP16StatusNotificationResponse
 507       >(chargingStation, OCPP16RequestCommand.STATUS_NOTIFICATION, {
 508         connectorId,
 509         status: OCPP16ChargePointStatus.AVAILABLE,
 510         errorCode: OCPP16ChargePointErrorCode.NO_ERROR,
 511       });
 512       chargingStation.getConnectorStatus(connectorId).status = OCPP16ChargePointStatus.AVAILABLE;
 513     }
 514   }
 515
 516   private async handleResponseStopTransaction(
 517     chargingStation: ChargingStation,
 518     payload: OCPP16StopTransactionResponse,
 519     requestPayload: OCPP16StopTransactionRequest
 520   ): Promise<void> {
 521     const transactionConnectorId = chargingStation.getConnectorIdByTransactionId(
 522       requestPayload.transactionId
 523     );
 524     if (!transactionConnectorId) {
 525       logger.error(
 526         chargingStation.logPrefix() +
 527           ' Trying to stop a non existing transaction ' +
 528           requestPayload.transactionId.toString()
 529       );
 530       return;
 531     }
 532     if (payload.idTagInfo?.status === OCPP16AuthorizationStatus.ACCEPTED) {
 533       chargingStation.getBeginEndMeterValues() &&
 534         !chargingStation.getOcppStrictCompliance() &&
 535         chargingStation.getOutOfOrderEndMeterValues() &&
 536         (await chargingStation.ocppRequestService.requestHandler<
 537           OCPP16MeterValuesRequest,
 538           OCPP16MeterValuesResponse
 539         >(chargingStation, OCPP16RequestCommand.METER_VALUES, {
 540           connectorId: transactionConnectorId,
 541           transactionId: requestPayload.transactionId,
 542           meterValue: [
 543             OCPP16ServiceUtils.buildTransactionEndMeterValue(
 544               chargingStation,
 545               transactionConnectorId,
 546               requestPayload.meterStop
 547             ),
 548           ],
 549         }));
 550       if (
 551         !chargingStation.isChargingStationAvailable() ||
 552         !chargingStation.isConnectorAvailable(transactionConnectorId)
 553       ) {
 554         await chargingStation.ocppRequestService.requestHandler<
 555           OCPP16StatusNotificationRequest,
 556           OCPP16StatusNotificationResponse
 557         >(chargingStation, OCPP16RequestCommand.STATUS_NOTIFICATION, {
 558           connectorId: transactionConnectorId,
 559           status: OCPP16ChargePointStatus.UNAVAILABLE,
 560           errorCode: OCPP16ChargePointErrorCode.NO_ERROR,
 561         });
 562         chargingStation.getConnectorStatus(transactionConnectorId).status =
 563           OCPP16ChargePointStatus.UNAVAILABLE;
 564       } else {
 565         await chargingStation.ocppRequestService.requestHandler<
 566           OCPP16BootNotificationRequest,
 567           OCPP16BootNotificationResponse
 568         >(chargingStation, OCPP16RequestCommand.STATUS_NOTIFICATION, {
 569           connectorId: transactionConnectorId,
 570           status: OCPP16ChargePointStatus.AVAILABLE,
 571           errorCode: OCPP16ChargePointErrorCode.NO_ERROR,
 572         });
 573         chargingStation.getConnectorStatus(transactionConnectorId).status =
 574           OCPP16ChargePointStatus.AVAILABLE;
 575       }
 576       if (chargingStation.stationInfo.powerSharedByConnectors) {
 577         chargingStation.powerDivider--;
 578       }
 579       logger.info(
 580         chargingStation.logPrefix() +
 581           ' Transaction ' +
 582           requestPayload.transactionId.toString() +
 583           ' STOPPED on ' +
 584           chargingStation.stationInfo.chargingStationId +
 585           '#' +
 586           transactionConnectorId.toString()
 587       );
 588       chargingStation.resetConnectorStatus(transactionConnectorId);
 589     } else {
 590       logger.warn(
 591         chargingStation.logPrefix() +
 592           ' Stopping transaction id ' +
 593           requestPayload.transactionId.toString() +
 594           " REJECTED with status '" +
 595           payload.idTagInfo?.status +
 596           "'"
 597       );
 598     }
 599   }
 600 }