X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=src%2Fcharging-station%2FChargingStation.ts;h=66146be92afc4f80224893752037f611e9b7fc79;hb=51c83d6f833f27f9990c17fc380ab5ee618894b1;hp=d57dc5921194aff3ba3c8fcfcec23e7085ca86af;hpb=e3018bc4b27b43106073e4c4cda031cc37715027;p=e-mobility-charging-stations-simulator.git diff --git a/src/charging-station/ChargingStation.ts b/src/charging-station/ChargingStation.ts index d57dc592..66146be9 100644 --- a/src/charging-station/ChargingStation.ts +++ b/src/charging-station/ChargingStation.ts @@ -11,20 +11,19 @@ import WebSocket, { Data, RawData } from 'ws'; import BaseError from '../exception/BaseError'; import OCPPError from '../exception/OCPPError'; import PerformanceStatistics from '../performance/PerformanceStatistics'; -import { AutomaticTransactionGeneratorConfiguration } from '../types/AutomaticTransactionGenerator'; -import ChargingStationConfiguration from '../types/ChargingStationConfiguration'; -import ChargingStationInfo from '../types/ChargingStationInfo'; -import ChargingStationOcppConfiguration from '../types/ChargingStationOcppConfiguration'; +import type { AutomaticTransactionGeneratorConfiguration } from '../types/AutomaticTransactionGenerator'; +import type ChargingStationConfiguration from '../types/ChargingStationConfiguration'; +import type ChargingStationInfo from '../types/ChargingStationInfo'; +import type ChargingStationOcppConfiguration from '../types/ChargingStationOcppConfiguration'; import ChargingStationTemplate, { CurrentType, PowerUnits, WsOptions, } from '../types/ChargingStationTemplate'; -import { ChargingStationWorkerMessageEvents } from '../types/ChargingStationWorker'; import { SupervisionUrlDistribution } from '../types/ConfigurationData'; -import { ConnectorStatus } from '../types/ConnectorStatus'; +import type { ConnectorStatus } from '../types/ConnectorStatus'; import { FileType } from '../types/FileType'; -import { JsonType } from '../types/JsonType'; +import type { JsonType } from '../types/JsonType'; import { ChargePointErrorCode } from '../types/ocpp/ChargePointErrorCode'; import { ChargePointStatus } from '../types/ocpp/ChargePointStatus'; import { ChargingProfile, ChargingRateUnitType } from '../types/ocpp/ChargingProfile'; @@ -74,19 +73,21 @@ import AuthorizedTagsCache from './AuthorizedTagsCache'; import AutomaticTransactionGenerator from './AutomaticTransactionGenerator'; import { ChargingStationConfigurationUtils } from './ChargingStationConfigurationUtils'; import { ChargingStationUtils } from './ChargingStationUtils'; +import ChargingStationWorkerBroadcastChannel from './ChargingStationWorkerBroadcastChannel'; +import { MessageChannelUtils } from './MessageChannelUtils'; import OCPP16IncomingRequestService from './ocpp/1.6/OCPP16IncomingRequestService'; import OCPP16RequestService from './ocpp/1.6/OCPP16RequestService'; import OCPP16ResponseService from './ocpp/1.6/OCPP16ResponseService'; import { OCPP16ServiceUtils } from './ocpp/1.6/OCPP16ServiceUtils'; -import OCPPIncomingRequestService from './ocpp/OCPPIncomingRequestService'; -import OCPPRequestService from './ocpp/OCPPRequestService'; +import type OCPPIncomingRequestService from './ocpp/OCPPIncomingRequestService'; +import type OCPPRequestService from './ocpp/OCPPRequestService'; import SharedLRUCache from './SharedLRUCache'; export default class ChargingStation { - public hashId!: string; public readonly templateFile: string; public authorizedTagsCache: AuthorizedTagsCache; public stationInfo!: ChargingStationInfo; + public stopped: boolean; public readonly connectors: Map; public ocppConfiguration!: ChargingStationOcppConfiguration; public wsConnection!: WebSocket; @@ -94,23 +95,23 @@ export default class ChargingStation { public performanceStatistics!: PerformanceStatistics; public heartbeatSetInterval!: NodeJS.Timeout; public ocppRequestService!: OCPPRequestService; + public bootNotificationRequest!: BootNotificationRequest; public bootNotificationResponse!: BootNotificationResponse | null; public powerDivider!: number; private readonly index: number; private configurationFile!: string; private configurationFileHash!: string; - private bootNotificationRequest!: BootNotificationRequest; private connectorsConfigurationHash!: string; private ocppIncomingRequestService!: OCPPIncomingRequestService; private readonly messageBuffer: Set; private configuredSupervisionUrl!: URL; private wsConnectionRestarted: boolean; private autoReconnectRetryCount: number; - private stopped: boolean; private templateFileWatcher!: fs.FSWatcher; private readonly sharedLRUCache: SharedLRUCache; private automaticTransactionGenerator!: AutomaticTransactionGenerator; private webSocketPingSetInterval!: NodeJS.Timeout; + private readonly chargingStationWorkerBroadcastChannel: ChargingStationWorkerBroadcastChannel; constructor(index: number, templateFile: string) { this.index = index; @@ -123,6 +124,8 @@ export default class ChargingStation { this.connectors = new Map(); this.requests = new Map(); this.messageBuffer = new Set(); + this.chargingStationWorkerBroadcastChannel = new ChargingStationWorkerBroadcastChannel(this); + this.initialize(); } @@ -148,10 +151,6 @@ export default class ChargingStation { ); } - public getBootNotificationRequest(): BootNotificationRequest { - return this.bootNotificationRequest; - } - public getRandomIdTag(): string { const authorizationFile = ChargingStationUtils.getAuthorizationFile(this.stationInfo); const index = Math.floor( @@ -174,8 +173,8 @@ export default class ChargingStation { : true; } - public getMayAuthorizeAtRemoteStart(): boolean | undefined { - return this.stationInfo.mayAuthorizeAtRemoteStart ?? true; + public getMustAuthorizeAtRemoteStart(): boolean | undefined { + return this.stationInfo.mustAuthorizeAtRemoteStart ?? true; } public getPayloadSchemaValidation(): boolean | undefined { @@ -332,22 +331,22 @@ export default class ChargingStation { } } - public getEnergyActiveImportRegisterByTransactionId(transactionId: number): number | undefined { + public getEnergyActiveImportRegisterByTransactionId(transactionId: number): number { const transactionConnectorStatus = this.getConnectorStatus( this.getConnectorIdByTransactionId(transactionId) ); if (this.getMeteringPerTransaction()) { - return transactionConnectorStatus?.transactionEnergyActiveImportRegisterValue; + return transactionConnectorStatus?.transactionEnergyActiveImportRegisterValue ?? 0; } - return transactionConnectorStatus?.energyActiveImportRegisterValue; + return transactionConnectorStatus?.energyActiveImportRegisterValue ?? 0; } - public getEnergyActiveImportRegisterByConnectorId(connectorId: number): number | undefined { + public getEnergyActiveImportRegisterByConnectorId(connectorId: number): number { const connectorStatus = this.getConnectorStatus(connectorId); if (this.getMeteringPerTransaction()) { - return connectorStatus?.transactionEnergyActiveImportRegisterValue; + return connectorStatus?.transactionEnergyActiveImportRegisterValue ?? 0; } - return connectorStatus?.energyActiveImportRegisterValue; + return connectorStatus?.energyActiveImportRegisterValue ?? 0; } public getAuthorizeRemoteTxRequests(): boolean { @@ -503,7 +502,9 @@ export default class ChargingStation { this.initialize(); // Restart the ATG this.stopAutomaticTransactionGenerator(); - this.startAutomaticTransactionGenerator(); + if (this.getAutomaticTransactionGeneratorConfigurationFromTemplate()?.enable) { + this.startAutomaticTransactionGenerator(); + } if (this.getEnableStatistics()) { this.performanceStatistics.restart(); } else { @@ -512,17 +513,14 @@ export default class ChargingStation { // FIXME?: restart heartbeat and WebSocket ping when their interval values have changed } catch (error) { logger.error( - `${this.logPrefix()} ${FileType.ChargingStationTemplate} file monitoring error: %j`, + `${this.logPrefix()} ${FileType.ChargingStationTemplate} file monitoring error:`, error ); } } } ); - parentPort.postMessage({ - id: ChargingStationWorkerMessageEvents.STARTED, - data: { id: this.stationInfo.chargingStationId }, - }); + parentPort.postMessage(MessageChannelUtils.buildStartedMessage(this)); } public async stop(reason: StopTransactionReason = StopTransactionReason.NONE): Promise { @@ -549,11 +547,8 @@ export default class ChargingStation { this.templateFileWatcher.close(); this.sharedLRUCache.deleteChargingStationTemplate(this.stationInfo?.templateHash); this.bootNotificationResponse = null; - parentPort.postMessage({ - id: ChargingStationWorkerMessageEvents.STOPPED, - data: { id: this.stationInfo.chargingStationId }, - }); this.stopped = true; + parentPort.postMessage(MessageChannelUtils.buildStoppedMessage(this)); } public async reset(reason?: StopTransactionReason): Promise { @@ -585,7 +580,7 @@ export default class ChargingStation { if (!Utils.isEmptyArray(chargingProfiles)) { const result = ChargingStationUtils.getLimitFromChargingProfiles( chargingProfiles, - Utils.logPrefix() + this.logPrefix() ); if (!Utils.isNullOrUndefined(result)) { limit = result.limit; @@ -628,7 +623,7 @@ export default class ChargingStation { ); this.getConnectorStatus(connectorId).chargingProfiles = []; } - if (!Array.isArray(this.getConnectorStatus(connectorId).chargingProfiles)) { + if (Array.isArray(this.getConnectorStatus(connectorId).chargingProfiles) === false) { logger.error( `${this.logPrefix()} Trying to set a charging profile on connectorId ${connectorId} with an improper attribute type for the charging profiles array, applying proper type initialization` ); @@ -677,7 +672,101 @@ export default class ChargingStation { this.messageBuffer.add(message); } - private flushMessageBuffer() { + public openWSConnection( + options: WsOptions = this.stationInfo?.wsOptions ?? {}, + params: { closeOpened?: boolean; terminateOpened?: boolean } = { + closeOpened: false, + terminateOpened: false, + } + ): void { + options.handshakeTimeout = options?.handshakeTimeout ?? this.getConnectionTimeout() * 1000; + params.closeOpened = params?.closeOpened ?? false; + params.terminateOpened = params?.terminateOpened ?? false; + if ( + !Utils.isNullOrUndefined(this.stationInfo.supervisionUser) && + !Utils.isNullOrUndefined(this.stationInfo.supervisionPassword) + ) { + options.auth = `${this.stationInfo.supervisionUser}:${this.stationInfo.supervisionPassword}`; + } + if (params?.closeOpened) { + this.closeWSConnection(); + } + if (params?.terminateOpened) { + this.terminateWSConnection(); + } + let protocol: string; + switch (this.getOcppVersion()) { + case OCPPVersion.VERSION_16: + protocol = 'ocpp' + OCPPVersion.VERSION_16; + break; + default: + this.handleUnsupportedVersion(this.getOcppVersion()); + break; + } + + if (this.isWebSocketConnectionOpened()) { + logger.warn( + `${this.logPrefix()} OCPP connection to URL ${this.wsConnectionUrl.toString()} is already opened` + ); + return; + } + + logger.info( + `${this.logPrefix()} Open OCPP connection to URL ${this.wsConnectionUrl.toString()}` + ); + + this.wsConnection = new WebSocket(this.wsConnectionUrl, protocol, options); + + // Handle WebSocket message + this.wsConnection.on( + 'message', + this.onMessage.bind(this) as (this: WebSocket, data: RawData, isBinary: boolean) => void + ); + // Handle WebSocket error + this.wsConnection.on( + 'error', + this.onError.bind(this) as (this: WebSocket, error: Error) => void + ); + // Handle WebSocket close + this.wsConnection.on( + 'close', + this.onClose.bind(this) as (this: WebSocket, code: number, reason: Buffer) => void + ); + // Handle WebSocket open + this.wsConnection.on('open', this.onOpen.bind(this) as (this: WebSocket) => void); + // Handle WebSocket ping + this.wsConnection.on('ping', this.onPing.bind(this) as (this: WebSocket, data: Buffer) => void); + // Handle WebSocket pong + this.wsConnection.on('pong', this.onPong.bind(this) as (this: WebSocket, data: Buffer) => void); + } + + public closeWSConnection(): void { + if (this.isWebSocketConnectionOpened()) { + this.wsConnection.close(); + this.wsConnection = null; + } + } + + public startAutomaticTransactionGenerator(): void { + if (!this.automaticTransactionGenerator) { + this.automaticTransactionGenerator = AutomaticTransactionGenerator.getInstance( + this.getAutomaticTransactionGeneratorConfigurationFromTemplate(), + this + ); + } + if (!this.automaticTransactionGenerator.started) { + this.automaticTransactionGenerator.start(); + } + } + + public stopAutomaticTransactionGenerator(): void { + if (this.automaticTransactionGenerator?.started) { + this.automaticTransactionGenerator.stop(); + this.automaticTransactionGenerator = null; + } + } + + private flushMessageBuffer(): void { if (this.messageBuffer.size > 0) { this.messageBuffer.forEach((message) => { // TODO: evaluate the need to track performance @@ -751,6 +840,7 @@ export default class ChargingStation { ); const stationInfo: ChargingStationInfo = ChargingStationUtils.stationTemplateToStationInfo(stationTemplate); + stationInfo.hashId = ChargingStationUtils.getHashId(this.index, stationTemplate); stationInfo.chargingStationId = ChargingStationUtils.getChargingStationId( this.index, stationTemplate @@ -780,14 +870,14 @@ export default class ChargingStation { ChargingStationUtils.checkConfiguredMaxConnectors( configuredMaxConnectors, this.templateFile, - Utils.logPrefix() + this.logPrefix() ); const templateMaxConnectors = ChargingStationUtils.getTemplateMaxNumberOfConnectors(stationTemplate); ChargingStationUtils.checkTemplateMaxConnectors( templateMaxConnectors, this.templateFile, - Utils.logPrefix() + this.logPrefix() ); if ( configuredMaxConnectors > @@ -854,28 +944,25 @@ export default class ChargingStation { } private handleUnsupportedVersion(version: OCPPVersion) { - const errMsg = `${this.logPrefix()} Unsupported protocol version '${version}' configured in template file ${ - this.templateFile - }`; - logger.error(errMsg); - throw new Error(errMsg); + const errMsg = `Unsupported protocol version '${version}' configured in template file ${this.templateFile}`; + logger.error(`${this.logPrefix()} ${errMsg}`); + throw new BaseError(errMsg); } private initialize(): void { - this.hashId = ChargingStationUtils.getHashId(this.index, this.getTemplateFromFile()); - logger.info(`${this.logPrefix()} Charging station hashId '${this.hashId}'`); + this.stationInfo = this.getStationInfo(); + this.saveStationInfo(); + logger.info(`${this.logPrefix()} Charging station hashId '${this.stationInfo.hashId}'`); this.configurationFile = path.join( path.dirname(this.templateFile.replace('station-templates', 'configurations')), - this.hashId + '.json' + this.stationInfo.hashId + '.json' ); - this.stationInfo = this.getStationInfo(); - this.saveStationInfo(); // Avoid duplication of connectors related information in RAM this.stationInfo?.Connectors && delete this.stationInfo.Connectors; this.configuredSupervisionUrl = this.getConfiguredSupervisionUrl(); if (this.getEnableStatistics()) { this.performanceStatistics = PerformanceStatistics.getInstance( - this.hashId, + this.stationInfo.hashId, this.stationInfo.chargingStationId, this.configuredSupervisionUrl ); @@ -1076,10 +1163,8 @@ export default class ChargingStation { templateMaxConnectors: number ): void { if (!stationInfo?.Connectors && this.connectors.size === 0) { - const logMsg = `${this.logPrefix()} No already defined connectors and charging station information from template ${ - this.templateFile - } with no connectors configuration defined`; - logger.error(logMsg); + const logMsg = `No already defined connectors and charging station information from template ${this.templateFile} with no connectors configuration defined`; + logger.error(`${this.logPrefix()} ${logMsg}`); throw new BaseError(logMsg); } if (!stationInfo?.Connectors[0]) { @@ -1353,7 +1438,7 @@ export default class ChargingStation { let errMsg: string; try { const request = JSON.parse(data.toString()) as IncomingRequest | Response | ErrorResponse; - if (Utils.isIterable(request)) { + if (Array.isArray(request) === true) { [messageType, messageId] = request; // Check the type of message switch (messageType) { @@ -1390,12 +1475,12 @@ export default class ChargingStation { } // Respond cachedRequest = this.requests.get(messageId); - if (Utils.isIterable(cachedRequest)) { + if (Array.isArray(cachedRequest) === true) { [responseCallback, , requestCommandName, requestPayload] = cachedRequest; } else { throw new OCPPError( ErrorType.PROTOCOL_ERROR, - `Cached request for message id ${messageId} response is not iterable`, + `Cached request for message id ${messageId} response is not an array`, null, cachedRequest as unknown as JsonType ); @@ -1420,12 +1505,12 @@ export default class ChargingStation { ); } cachedRequest = this.requests.get(messageId); - if (Utils.isIterable(cachedRequest)) { + if (Array.isArray(cachedRequest) === true) { [, errorCallback, requestCommandName] = cachedRequest; } else { throw new OCPPError( ErrorType.PROTOCOL_ERROR, - `Cached request for message id ${messageId} error response is not iterable`, + `Cached request for message id ${messageId} error response is not an array`, null, cachedRequest as unknown as JsonType ); @@ -1440,31 +1525,31 @@ export default class ChargingStation { // Error default: // eslint-disable-next-line @typescript-eslint/restrict-template-expressions - errMsg = `${this.logPrefix()} Wrong message type ${messageType}`; - logger.error(errMsg); + errMsg = `Wrong message type ${messageType}`; + logger.error(`${this.logPrefix()} ${errMsg}`); throw new OCPPError(ErrorType.PROTOCOL_ERROR, errMsg); } + parentPort.postMessage(MessageChannelUtils.buildUpdatedMessage(this)); } else { - throw new OCPPError(ErrorType.PROTOCOL_ERROR, 'Incoming message is not iterable', null, { + throw new OCPPError(ErrorType.PROTOCOL_ERROR, 'Incoming message is not an array', null, { payload: request, }); } } catch (error) { // Log logger.error( - "%s Incoming OCPP '%s' message '%j' matching cached request '%j' processing error: %j", - this.logPrefix(), - commandName ?? requestCommandName ?? null, - data.toString(), - this.requests.get(messageId), + `${this.logPrefix()} Incoming OCPP command '${ + commandName ?? requestCommandName ?? null + }' message '${data.toString()}' matching cached request '${JSON.stringify( + this.requests.get(messageId) + )}' processing error:`, error ); if (!(error instanceof OCPPError)) { logger.warn( - "%s Error thrown at incoming OCPP '%s' message '%j' handling is not an OCPPError: %j", - this.logPrefix(), - commandName ?? requestCommandName ?? null, - data.toString(), + `${this.logPrefix()} Error thrown at incoming OCPP command '${ + commandName ?? requestCommandName ?? null + }' message '${data.toString()}' handling is not an OCPPError:`, error ); } @@ -1489,7 +1574,7 @@ export default class ChargingStation { private onError(error: WSError): void { this.closeWSConnection(); - logger.error(this.logPrefix() + ' WebSocket error: %j', error); + logger.error(this.logPrefix() + ' WebSocket error:', error); } private getUseConnectorId0(stationInfo?: ChargingStationInfo): boolean | undefined { @@ -1680,27 +1765,8 @@ export default class ChargingStation { } } // Start the ATG - this.startAutomaticTransactionGenerator(); - } - - private startAutomaticTransactionGenerator() { if (this.getAutomaticTransactionGeneratorConfigurationFromTemplate()?.enable) { - if (!this.automaticTransactionGenerator) { - this.automaticTransactionGenerator = AutomaticTransactionGenerator.getInstance( - this.getAutomaticTransactionGeneratorConfigurationFromTemplate(), - this - ); - } - if (!this.automaticTransactionGenerator.started) { - this.automaticTransactionGenerator.start(); - } - } - } - - private stopAutomaticTransactionGenerator(): void { - if (this.automaticTransactionGenerator?.started) { - this.automaticTransactionGenerator.stop(); - this.automaticTransactionGenerator = null; + this.startAutomaticTransactionGenerator(); } } @@ -1712,42 +1778,44 @@ export default class ChargingStation { // Stop heartbeat this.stopHeartbeat(); // Stop ongoing transactions - if (this.automaticTransactionGenerator?.configuration?.enable) { - this.stopAutomaticTransactionGenerator(); - } else { - for (const connectorId of this.connectors.keys()) { - if (connectorId > 0 && this.getConnectorStatus(connectorId)?.transactionStarted) { - const transactionId = this.getConnectorStatus(connectorId).transactionId; - if ( - this.getBeginEndMeterValues() && - this.getOcppStrictCompliance() && - !this.getOutOfOrderEndMeterValues() - ) { - // FIXME: Implement OCPP version agnostic helpers - const transactionEndMeterValue = OCPP16ServiceUtils.buildTransactionEndMeterValue( - this, - connectorId, - this.getEnergyActiveImportRegisterByTransactionId(transactionId) - ); - await this.ocppRequestService.requestHandler( - this, - RequestCommand.METER_VALUES, - { + if (this.getNumberOfRunningTransactions() > 0) { + if (this.automaticTransactionGenerator?.started) { + this.stopAutomaticTransactionGenerator(); + } else { + for (const connectorId of this.connectors.keys()) { + if (connectorId > 0 && this.getConnectorStatus(connectorId)?.transactionStarted) { + const transactionId = this.getConnectorStatus(connectorId).transactionId; + if ( + this.getBeginEndMeterValues() && + this.getOcppStrictCompliance() && + !this.getOutOfOrderEndMeterValues() + ) { + // FIXME: Implement OCPP version agnostic helpers + const transactionEndMeterValue = OCPP16ServiceUtils.buildTransactionEndMeterValue( + this, connectorId, - transactionId, - meterValue: [transactionEndMeterValue], - } - ); + this.getEnergyActiveImportRegisterByTransactionId(transactionId) + ); + await this.ocppRequestService.requestHandler( + this, + RequestCommand.METER_VALUES, + { + connectorId, + transactionId, + meterValue: [transactionEndMeterValue], + } + ); + } + await this.ocppRequestService.requestHandler< + StopTransactionRequest, + StopTransactionResponse + >(this, RequestCommand.STOP_TRANSACTION, { + transactionId, + meterStop: this.getEnergyActiveImportRegisterByTransactionId(transactionId), + idTag: this.getTransactionIdTag(transactionId), + reason, + }); } - await this.ocppRequestService.requestHandler< - StopTransactionRequest, - StopTransactionResponse - >(this, RequestCommand.STOP_TRANSACTION, { - transactionId, - meterStop: this.getEnergyActiveImportRegisterByTransactionId(transactionId), - idTag: this.getTransactionIdTag(transactionId), - reason, - }); } } } @@ -1869,74 +1937,6 @@ export default class ChargingStation { } } - private openWSConnection( - options: WsOptions = this.stationInfo?.wsOptions ?? {}, - params: { closeOpened?: boolean; terminateOpened?: boolean } = { - closeOpened: false, - terminateOpened: false, - } - ): void { - options.handshakeTimeout = options?.handshakeTimeout ?? this.getConnectionTimeout() * 1000; - params.closeOpened = params?.closeOpened ?? false; - params.terminateOpened = params?.terminateOpened ?? false; - if ( - !Utils.isNullOrUndefined(this.stationInfo.supervisionUser) && - !Utils.isNullOrUndefined(this.stationInfo.supervisionPassword) - ) { - options.auth = `${this.stationInfo.supervisionUser}:${this.stationInfo.supervisionPassword}`; - } - if (params?.closeOpened) { - this.closeWSConnection(); - } - if (params?.terminateOpened) { - this.terminateWSConnection(); - } - let protocol: string; - switch (this.getOcppVersion()) { - case OCPPVersion.VERSION_16: - protocol = 'ocpp' + OCPPVersion.VERSION_16; - break; - default: - this.handleUnsupportedVersion(this.getOcppVersion()); - break; - } - - logger.info( - this.logPrefix() + ' Open OCPP connection to URL ' + this.wsConnectionUrl.toString() - ); - - this.wsConnection = new WebSocket(this.wsConnectionUrl, protocol, options); - - // Handle WebSocket message - this.wsConnection.on( - 'message', - this.onMessage.bind(this) as (this: WebSocket, data: RawData, isBinary: boolean) => void - ); - // Handle WebSocket error - this.wsConnection.on( - 'error', - this.onError.bind(this) as (this: WebSocket, error: Error) => void - ); - // Handle WebSocket close - this.wsConnection.on( - 'close', - this.onClose.bind(this) as (this: WebSocket, code: number, reason: Buffer) => void - ); - // Handle WebSocket open - this.wsConnection.on('open', this.onOpen.bind(this) as (this: WebSocket) => void); - // Handle WebSocket ping - this.wsConnection.on('ping', this.onPing.bind(this) as (this: WebSocket, data: Buffer) => void); - // Handle WebSocket pong - this.wsConnection.on('pong', this.onPong.bind(this) as (this: WebSocket, data: Buffer) => void); - } - - private closeWSConnection(): void { - if (this.isWebSocketConnectionOpened()) { - this.wsConnection.close(); - this.wsConnection = null; - } - } - private terminateWSConnection(): void { if (this.isWebSocketConnectionOpened()) { this.wsConnection.terminate();