X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=src%2Fcharging-station%2FBootstrap.ts;h=2c1b0f43b3443f8f239888b7f4e507ad6eefd584;hb=a66bbcfe85550dc01a2e32bd17a52f5980a78193;hp=802a944525cc4c824e6a282aa048c20ab6a0e9cc;hpb=7c1395ab4ec7d727ac09c0f0347a8d9fc5e2c8de;p=e-mobility-charging-stations-simulator.git diff --git a/src/charging-station/Bootstrap.ts b/src/charging-station/Bootstrap.ts index 802a9445..2c1b0f43 100644 --- a/src/charging-station/Bootstrap.ts +++ b/src/charging-station/Bootstrap.ts @@ -1,327 +1,526 @@ -// Partial Copyright Jerome Benoit. 2021-2023. All Rights Reserved. +// Partial Copyright Jerome Benoit. 2021-2024. All Rights Reserved. -import { EventEmitter } from 'node:events'; -import path from 'node:path'; -import { fileURLToPath } from 'node:url'; -import { type Worker, isMainThread } from 'node:worker_threads'; +import { EventEmitter } from 'node:events' +import { dirname, extname, join, parse } from 'node:path' +import process, { exit } from 'node:process' +import { fileURLToPath } from 'node:url' +import { isMainThread } from 'node:worker_threads' +import type { Worker } from 'worker_threads' -import chalk from 'chalk'; +import chalk from 'chalk' +import { type MessageHandler, availableParallelism } from 'poolifier' -import type { AbstractUIServer } from './ui-server/AbstractUIServer'; -import { UIServerFactory } from './ui-server/UIServerFactory'; -import packageJson from '../../package.json' assert { type: 'json' }; -import { BaseError } from '../exception'; -import { type Storage, StorageFactory } from '../performance'; +import { waitChargingStationEvents } from './Helpers.js' +import type { AbstractUIServer } from './ui-server/AbstractUIServer.js' +import { UIServerFactory } from './ui-server/UIServerFactory.js' +import { version } from '../../package.json' +import { BaseError } from '../exception/index.js' +import { type Storage, StorageFactory } from '../performance/index.js' import { type ChargingStationData, type ChargingStationWorkerData, + type ChargingStationWorkerEventError, type ChargingStationWorkerMessage, type ChargingStationWorkerMessageData, ChargingStationWorkerMessageEvents, + ConfigurationSection, ProcedureName, - type StationTemplateUrl, type Statistics, -} from '../types'; -import { Configuration, Constants, ErrorUtils, Utils, logger } from '../utils'; -import { type MessageHandler, type WorkerAbstract, WorkerFactory } from '../worker'; + type StorageConfiguration, + type UIServerConfiguration, + type WorkerConfiguration +} from '../types/index.js' +import { + Configuration, + Constants, + formatDurationMilliSeconds, + generateUUID, + handleUncaughtException, + handleUnhandledRejection, + isAsyncFunction, + isNotEmptyArray, + logPrefix, + logger, + max +} from '../utils/index.js' +import { type WorkerAbstract, WorkerFactory } from '../worker/index.js' -const moduleName = 'Bootstrap'; +const moduleName = 'Bootstrap' enum exitCodes { + succeeded = 0, missingChargingStationsConfiguration = 1, - noChargingStationTemplates = 2, + duplicateChargingStationTemplateUrls = 2, + noChargingStationTemplates = 3, + gracefulShutdownError = 4 +} + +interface TemplateChargingStations { + configured: number + added: number + started: number + lastIndex: number } export class Bootstrap extends EventEmitter { - private static instance: Bootstrap | null = null; - public numberOfChargingStations!: number; - public numberOfChargingStationTemplates!: number; - private workerImplementation: WorkerAbstract | null; - private readonly uiServer!: AbstractUIServer | null; - private readonly storage!: Storage; - private numberOfStartedChargingStations!: number; - private readonly version: string = packageJson.version; - private initializedCounters: boolean; - private started: boolean; - private readonly workerScript: string; + private static instance: Bootstrap | null = null + private workerImplementation?: WorkerAbstract + private readonly uiServer?: AbstractUIServer + private storage?: Storage + private readonly chargingStationsByTemplate: Map + private readonly version: string = version + private initializedCounters: boolean + private started: boolean + private starting: boolean + private stopping: boolean - private constructor() { - super(); + private constructor () { + super() for (const signal of ['SIGINT', 'SIGQUIT', 'SIGTERM']) { - process.on(signal, this.gracefulShutdown); + process.on(signal, this.gracefulShutdown.bind(this)) } // Enable unconditionally for now - ErrorUtils.handleUnhandledRejection(); - ErrorUtils.handleUncaughtException(); - this.initializedCounters = false; - this.started = false; - this.initializeCounters(); - this.workerImplementation = null; - this.workerScript = path.join( - path.dirname(fileURLToPath(import.meta.url)), - `ChargingStationWorker${path.extname(fileURLToPath(import.meta.url))}` - ); - Configuration.getUIServer().enabled === true && - (this.uiServer = UIServerFactory.getUIServerImplementation(Configuration.getUIServer())); - Configuration.getPerformanceStorage().enabled === true && - (this.storage = StorageFactory.getStorage( - Configuration.getPerformanceStorage().type, - Configuration.getPerformanceStorage().uri, - this.logPrefix() - )); - Configuration.setConfigurationChangeCallback(async () => Bootstrap.getInstance().restart()); + handleUnhandledRejection() + handleUncaughtException() + this.started = false + this.starting = false + this.stopping = false + this.chargingStationsByTemplate = new Map() + this.uiServer = UIServerFactory.getUIServerImplementation( + Configuration.getConfigurationSection(ConfigurationSection.uiServer) + ) + this.initializedCounters = false + this.initializeCounters() + Configuration.configurationChangeCallback = async () => { + if (isMainThread) { + await Bootstrap.getInstance().restart() + } + } } - public static getInstance(): Bootstrap { + public static getInstance (): Bootstrap { if (Bootstrap.instance === null) { - Bootstrap.instance = new Bootstrap(); + Bootstrap.instance = new Bootstrap() } - return Bootstrap.instance; + return Bootstrap.instance } - public async start(): Promise { - if (isMainThread && this.started === false) { - this.initializeCounters(); - this.initializeWorkerImplementation(); - await this.workerImplementation?.start(); - await this.storage?.open(); - this.uiServer?.start(); - // Start ChargingStation object instance in worker thread - for (const stationTemplateUrl of Configuration.getStationTemplateUrls()) { - try { - const nbStations = stationTemplateUrl.numberOfStations ?? 0; - for (let index = 1; index <= nbStations; index++) { - await this.startChargingStation(index, stationTemplateUrl); + public get numberOfChargingStationTemplates (): number { + return this.chargingStationsByTemplate.size + } + + public get numberOfConfiguredChargingStations (): number { + return [...this.chargingStationsByTemplate.values()].reduce( + (accumulator, value) => accumulator + value.configured, + 0 + ) + } + + public getLastIndex (templateName: string): number { + return this.chargingStationsByTemplate.get(templateName)?.lastIndex ?? 0 + } + + public getPerformanceStatistics (): IterableIterator | undefined { + return this.storage?.getPerformanceStatistics() + } + + private get numberOfAddedChargingStations (): number { + return [...this.chargingStationsByTemplate.values()].reduce( + (accumulator, value) => accumulator + value.added, + 0 + ) + } + + private get numberOfStartedChargingStations (): number { + return [...this.chargingStationsByTemplate.values()].reduce( + (accumulator, value) => accumulator + value.started, + 0 + ) + } + + public async start (): Promise { + if (!this.started) { + if (!this.starting) { + this.starting = true + this.on(ChargingStationWorkerMessageEvents.added, this.workerEventAdded) + this.on(ChargingStationWorkerMessageEvents.started, this.workerEventStarted) + this.on(ChargingStationWorkerMessageEvents.stopped, this.workerEventStopped) + this.on(ChargingStationWorkerMessageEvents.updated, this.workerEventUpdated) + this.on( + ChargingStationWorkerMessageEvents.performanceStatistics, + this.workerEventPerformanceStatistics + ) + this.initializeCounters() + const workerConfiguration = Configuration.getConfigurationSection( + ConfigurationSection.worker + ) + this.initializeWorkerImplementation(workerConfiguration) + await this.workerImplementation?.start() + const performanceStorageConfiguration = + Configuration.getConfigurationSection( + ConfigurationSection.performanceStorage + ) + if (performanceStorageConfiguration.enabled === true) { + this.storage = StorageFactory.getStorage( + // eslint-disable-next-line @typescript-eslint/no-non-null-assertion + performanceStorageConfiguration.type!, + // eslint-disable-next-line @typescript-eslint/no-non-null-assertion + performanceStorageConfiguration.uri!, + this.logPrefix() + ) + await this.storage?.open() + } + Configuration.getConfigurationSection(ConfigurationSection.uiServer) + .enabled === true && this.uiServer?.start() + // Start ChargingStation object instance in worker thread + // eslint-disable-next-line @typescript-eslint/no-non-null-assertion + for (const stationTemplateUrl of Configuration.getStationTemplateUrls()!) { + try { + const nbStations = + this.chargingStationsByTemplate.get(parse(stationTemplateUrl.file).name) + ?.configured ?? stationTemplateUrl.numberOfStations + for (let index = 1; index <= nbStations; index++) { + await this.addChargingStation(index, stationTemplateUrl.file) + } + } catch (error) { + console.error( + chalk.red( + `Error at starting charging station with template file ${stationTemplateUrl.file}: ` + ), + error + ) } - } catch (error) { - console.error( - chalk.red( - `Error at starting charging station with template file ${stationTemplateUrl.file}: ` - ), - error - ); } - } - console.info( - chalk.green( - `Charging stations simulator ${ - this.version - } started with ${this.numberOfChargingStations.toString()} charging station(s) from ${this.numberOfChargingStationTemplates.toString()} configured charging station template(s) and ${ - Configuration.workerDynamicPoolInUse() - ? `${Configuration.getWorker().poolMinSize?.toString()}/` - : '' - }${this.workerImplementation?.size}${ - Configuration.workerPoolInUse() - ? `/${Configuration.getWorker().poolMaxSize?.toString()}` - : '' - } worker(s) concurrently running in '${Configuration.getWorker().processType}' mode${ - !Utils.isNullOrUndefined(this.workerImplementation?.maxElementsPerWorker) - ? ` (${this.workerImplementation?.maxElementsPerWorker} charging station(s) per worker)` - : '' - }` + console.info( + chalk.green( + `Charging stations simulator ${ + this.version + } started with ${this.numberOfConfiguredChargingStations} configured charging station(s) from ${this.numberOfChargingStationTemplates} charging station template(s) and ${ + Configuration.workerDynamicPoolInUse() ? `${workerConfiguration.poolMinSize}/` : '' + }${this.workerImplementation?.size}${ + Configuration.workerPoolInUse() ? `/${workerConfiguration.poolMaxSize}` : '' + } worker(s) concurrently running in '${workerConfiguration.processType}' mode${ + this.workerImplementation?.maxElementsPerWorker != null + ? ` (${this.workerImplementation.maxElementsPerWorker} charging station(s) per worker)` + : '' + }` + ) ) - ); - this.started = true; + Configuration.workerDynamicPoolInUse() && + console.warn( + chalk.yellow( + 'Charging stations simulator is using dynamic pool mode. This is an experimental feature with known issues.\nPlease consider using fixed pool or worker set mode instead' + ) + ) + console.info(chalk.green('Worker set/pool information:'), this.workerImplementation?.info) + this.started = true + this.starting = false + } else { + console.error(chalk.red('Cannot start an already starting charging stations simulator')) + } } else { - console.error(chalk.red('Cannot start an already started charging stations simulator')); + console.error(chalk.red('Cannot start an already started charging stations simulator')) } } - public async stop(): Promise { - if (isMainThread && this.started === true) { - await this.uiServer?.sendInternalRequest( - this.uiServer.buildProtocolRequest( - Utils.generateUUID(), - ProcedureName.STOP_CHARGING_STATION, - Constants.EMPTY_FREEZED_OBJECT + public async stop (): Promise { + if (this.started) { + if (!this.stopping) { + this.stopping = true + await this.uiServer?.sendInternalRequest( + this.uiServer.buildProtocolRequest( + generateUUID(), + ProcedureName.STOP_CHARGING_STATION, + Constants.EMPTY_FROZEN_OBJECT + ) ) - ); - await this.waitForChargingStationsStopped(); - await this.workerImplementation?.stop(); - this.workerImplementation = null; - this.uiServer?.stop(); - await this.storage?.close(); - this.initializedCounters = false; - this.started = false; + try { + await this.waitChargingStationsStopped() + } catch (error) { + console.error(chalk.red('Error while waiting for charging stations to stop: '), error) + } + await this.workerImplementation?.stop() + delete this.workerImplementation + this.removeAllListeners() + await this.storage?.close() + delete this.storage + this.started = false + this.stopping = false + } else { + console.error(chalk.red('Cannot stop an already stopping charging stations simulator')) + } } else { - console.error(chalk.red('Cannot stop a not started charging stations simulator')); + console.error(chalk.red('Cannot stop an already stopped charging stations simulator')) } } - public async restart(): Promise { - await this.stop(); - await this.start(); + private async restart (): Promise { + await this.stop() + Configuration.getConfigurationSection(ConfigurationSection.uiServer) + .enabled !== true && this.uiServer?.stop() + this.initializedCounters = false + await this.start() + } + + private async waitChargingStationsStopped (): Promise { + return await new Promise((resolve, reject) => { + const waitTimeout = setTimeout(() => { + const timeoutMessage = `Timeout ${formatDurationMilliSeconds( + Constants.STOP_CHARGING_STATIONS_TIMEOUT + )} reached at stopping charging stations` + console.warn(chalk.yellow(timeoutMessage)) + reject(new Error(timeoutMessage)) + }, Constants.STOP_CHARGING_STATIONS_TIMEOUT) + waitChargingStationEvents( + this, + ChargingStationWorkerMessageEvents.stopped, + this.numberOfStartedChargingStations + ) + .then(() => { + resolve('Charging stations stopped') + }) + .catch(reject) + .finally(() => { + clearTimeout(waitTimeout) + }) + }) } - private initializeWorkerImplementation(): void { - this.workerImplementation === null && - (this.workerImplementation = WorkerFactory.getWorkerImplementation( - this.workerScript, - Configuration.getWorker().processType, - { - workerStartDelay: Configuration.getWorker().startDelay, - elementStartDelay: Configuration.getWorker().elementStartDelay, - poolMaxSize: Configuration.getWorker().poolMaxSize, - poolMinSize: Configuration.getWorker().poolMinSize, - elementsPerWorker: Configuration.getWorker().elementsPerWorker, - poolOptions: { - workerChoiceStrategy: Configuration.getWorker().poolStrategy, - }, + private initializeWorkerImplementation (workerConfiguration: WorkerConfiguration): void { + if (!isMainThread) { + return + } + let elementsPerWorker: number | undefined + switch (workerConfiguration.elementsPerWorker) { + case 'auto': + elementsPerWorker = + this.numberOfConfiguredChargingStations > availableParallelism() + ? Math.round(this.numberOfConfiguredChargingStations / (availableParallelism() * 1.5)) + : 1 + break + case 'all': + elementsPerWorker = this.numberOfConfiguredChargingStations + break + } + this.workerImplementation = WorkerFactory.getWorkerImplementation( + join( + dirname(fileURLToPath(import.meta.url)), + `ChargingStationWorker${extname(fileURLToPath(import.meta.url))}` + ), + // eslint-disable-next-line @typescript-eslint/no-non-null-assertion + workerConfiguration.processType!, + { + workerStartDelay: workerConfiguration.startDelay, + elementStartDelay: workerConfiguration.elementStartDelay, + // eslint-disable-next-line @typescript-eslint/no-non-null-assertion + poolMaxSize: workerConfiguration.poolMaxSize!, + // eslint-disable-next-line @typescript-eslint/no-non-null-assertion + poolMinSize: workerConfiguration.poolMinSize!, + elementsPerWorker: elementsPerWorker ?? (workerConfiguration.elementsPerWorker as number), + poolOptions: { messageHandler: this.messageHandler.bind(this) as MessageHandler, + workerOptions: { resourceLimits: workerConfiguration.resourceLimits } } - )); + } + ) } - private messageHandler( + private messageHandler ( msg: ChargingStationWorkerMessage ): void { // logger.debug( // `${this.logPrefix()} ${moduleName}.messageHandler: Worker channel message received: ${JSON.stringify( // msg, - // null, + // undefined, // 2 // )}` - // ); + // ) try { - switch (msg.id) { + switch (msg.event) { + case ChargingStationWorkerMessageEvents.added: + this.emit(ChargingStationWorkerMessageEvents.added, msg.data as ChargingStationData) + break case ChargingStationWorkerMessageEvents.started: - this.workerEventStarted(msg.data as ChargingStationData); - this.emit(ChargingStationWorkerMessageEvents.started, msg.data as ChargingStationData); - break; + this.emit(ChargingStationWorkerMessageEvents.started, msg.data as ChargingStationData) + break case ChargingStationWorkerMessageEvents.stopped: - this.workerEventStopped(msg.data as ChargingStationData); - this.emit(ChargingStationWorkerMessageEvents.stopped, msg.data as ChargingStationData); - break; + this.emit(ChargingStationWorkerMessageEvents.stopped, msg.data as ChargingStationData) + break case ChargingStationWorkerMessageEvents.updated: - this.workerEventUpdated(msg.data as ChargingStationData); - this.emit(ChargingStationWorkerMessageEvents.updated, msg.data as ChargingStationData); - break; + this.emit(ChargingStationWorkerMessageEvents.updated, msg.data as ChargingStationData) + break case ChargingStationWorkerMessageEvents.performanceStatistics: - this.workerEventPerformanceStatistics(msg.data as Statistics); this.emit( ChargingStationWorkerMessageEvents.performanceStatistics, msg.data as Statistics - ); - break; + ) + break + case ChargingStationWorkerMessageEvents.addedWorkerElement: + break + case ChargingStationWorkerMessageEvents.workerElementError: + logger.error( + `${this.logPrefix()} ${moduleName}.messageHandler: Error occurred while handling '${(msg.data as ChargingStationWorkerEventError).event}' event on worker:`, + msg.data + ) + this.emit(ChargingStationWorkerMessageEvents.workerElementError, msg.data) + break default: throw new BaseError( - `Unknown event type: '${msg.id}' for data: ${JSON.stringify(msg.data, null, 2)}` - ); + `Unknown charging station worker event: '${ + msg.event + }' received with data: ${JSON.stringify(msg.data, undefined, 2)}` + ) } } catch (error) { logger.error( `${this.logPrefix()} ${moduleName}.messageHandler: Error occurred while handling '${ - msg.id + msg.event }' event:`, error - ); + ) } } - private workerEventStarted = (data: ChargingStationData) => { - this.uiServer?.chargingStations.set(data.stationInfo.hashId, data); - ++this.numberOfStartedChargingStations; + private readonly workerEventAdded = (data: ChargingStationData): void => { + this.uiServer?.chargingStations.set(data.stationInfo.hashId, data) + // eslint-disable-next-line @typescript-eslint/no-non-null-assertion + ++this.chargingStationsByTemplate.get(data.stationInfo.templateName)!.added + logger.info( + `${this.logPrefix()} ${moduleName}.workerEventAdded: Charging station ${ + data.stationInfo.chargingStationId + } (hashId: ${data.stationInfo.hashId}) added (${ + this.numberOfAddedChargingStations + } added from ${this.numberOfConfiguredChargingStations} configured charging station(s))` + ) + } + + private readonly workerEventStarted = (data: ChargingStationData): void => { + this.uiServer?.chargingStations.set(data.stationInfo.hashId, data) + // eslint-disable-next-line @typescript-eslint/no-non-null-assertion + ++this.chargingStationsByTemplate.get(data.stationInfo.templateName)!.started logger.info( `${this.logPrefix()} ${moduleName}.workerEventStarted: Charging station ${ data.stationInfo.chargingStationId } (hashId: ${data.stationInfo.hashId}) started (${ this.numberOfStartedChargingStations - } started from ${this.numberOfChargingStations})` - ); - }; + } started from ${this.numberOfAddedChargingStations} added charging station(s))` + ) + } - private workerEventStopped = (data: ChargingStationData) => { - this.uiServer?.chargingStations.set(data.stationInfo.hashId, data); - --this.numberOfStartedChargingStations; + private readonly workerEventStopped = (data: ChargingStationData): void => { + this.uiServer?.chargingStations.set(data.stationInfo.hashId, data) + // eslint-disable-next-line @typescript-eslint/no-non-null-assertion + --this.chargingStationsByTemplate.get(data.stationInfo.templateName)!.started logger.info( `${this.logPrefix()} ${moduleName}.workerEventStopped: Charging station ${ data.stationInfo.chargingStationId } (hashId: ${data.stationInfo.hashId}) stopped (${ this.numberOfStartedChargingStations - } started from ${this.numberOfChargingStations})` - ); - }; + } started from ${this.numberOfAddedChargingStations} added charging station(s))` + ) + } - private workerEventUpdated = (data: ChargingStationData) => { - this.uiServer?.chargingStations.set(data.stationInfo.hashId, data); - }; + private readonly workerEventUpdated = (data: ChargingStationData): void => { + this.uiServer?.chargingStations.set(data.stationInfo.hashId, data) + } - private workerEventPerformanceStatistics = (data: Statistics) => { - this.storage.storePerformanceStatistics(data) as void; - }; + private readonly workerEventPerformanceStatistics = (data: Statistics): void => { + // eslint-disable-next-line @typescript-eslint/unbound-method + if (isAsyncFunction(this.storage?.storePerformanceStatistics)) { + ( + this.storage.storePerformanceStatistics as ( + performanceStatistics: Statistics + ) => Promise + )(data).catch(Constants.EMPTY_FUNCTION) + } else { + (this.storage?.storePerformanceStatistics as (performanceStatistics: Statistics) => void)( + data + ) + } + } - private initializeCounters() { - if (this.initializedCounters === false) { - this.numberOfChargingStationTemplates = 0; - this.numberOfChargingStations = 0; - const stationTemplateUrls = Configuration.getStationTemplateUrls(); - if (Utils.isNotEmptyArray(stationTemplateUrls)) { - this.numberOfChargingStationTemplates = stationTemplateUrls.length; + private initializeCounters (): void { + if (!this.initializedCounters) { + // eslint-disable-next-line @typescript-eslint/no-non-null-assertion + const stationTemplateUrls = Configuration.getStationTemplateUrls()! + if (isNotEmptyArray(stationTemplateUrls)) { for (const stationTemplateUrl of stationTemplateUrls) { - this.numberOfChargingStations += stationTemplateUrl.numberOfStations ?? 0; + const templateName = parse(stationTemplateUrl.file).name + this.chargingStationsByTemplate.set(templateName, { + configured: stationTemplateUrl.numberOfStations, + added: 0, + started: 0, + lastIndex: 0 + }) + this.uiServer?.chargingStationTemplates.add(templateName) + } + if (this.chargingStationsByTemplate.size !== stationTemplateUrls.length) { + console.error( + chalk.red( + "'stationTemplateUrls' contains duplicate entries, please check your configuration" + ) + ) + exit(exitCodes.duplicateChargingStationTemplateUrls) } } else { - console.warn( - chalk.yellow("'stationTemplateUrls' not defined or empty in configuration, exiting") - ); - process.exit(exitCodes.missingChargingStationsConfiguration); + console.error( + chalk.red("'stationTemplateUrls' not defined or empty, please check your configuration") + ) + exit(exitCodes.missingChargingStationsConfiguration) } - if (this.numberOfChargingStations === 0) { - console.warn( - chalk.yellow('No charging station template enabled in configuration, exiting') - ); - process.exit(exitCodes.noChargingStationTemplates); + if ( + this.numberOfConfiguredChargingStations === 0 && + Configuration.getConfigurationSection(ConfigurationSection.uiServer) + .enabled !== true + ) { + console.error( + chalk.red( + "'stationTemplateUrls' has no charging station enabled and UI server is disabled, please check your configuration" + ) + ) + exit(exitCodes.noChargingStationTemplates) } - this.numberOfStartedChargingStations = 0; - this.initializedCounters = true; + this.initializedCounters = true } } - private async startChargingStation( - index: number, - stationTemplateUrl: StationTemplateUrl - ): Promise { + public async addChargingStation (index: number, stationTemplateFile: string): Promise { await this.workerImplementation?.addElement({ index, - templateFile: path.join( - path.dirname(fileURLToPath(import.meta.url)), + templateFile: join( + dirname(fileURLToPath(import.meta.url)), 'assets', 'station-templates', - stationTemplateUrl.file - ), - }); + stationTemplateFile + ) + }) + // eslint-disable-next-line @typescript-eslint/no-non-null-assertion + this.chargingStationsByTemplate.get(parse(stationTemplateFile).name)!.lastIndex = max( + index, + this.chargingStationsByTemplate.get(parse(stationTemplateFile).name)?.lastIndex ?? -Infinity + ) } - private gracefulShutdown = (): void => { - console.info(`${chalk.green('Graceful shutdown')}`); + private gracefulShutdown (): void { this.stop() .then(() => { - process.exit(0); + console.info(chalk.green('Graceful shutdown')) + this.uiServer?.stop() + this.waitChargingStationsStopped() + .then(() => { + exit(exitCodes.succeeded) + }) + .catch(() => { + exit(exitCodes.gracefulShutdownError) + }) }) - .catch((error) => { - console.error(chalk.red('Error while shutdowning charging stations simulator: '), error); - process.exit(1); - }); - }; - - private waitForChargingStationsStopped = async ( - stoppedEventsToWait = this.numberOfStartedChargingStations - ): Promise => { - return new Promise((resolve) => { - let stoppedEvents = 0; - if (stoppedEventsToWait === 0) { - resolve(stoppedEvents); - } - this.on(ChargingStationWorkerMessageEvents.stopped, () => { - ++stoppedEvents; - if (stoppedEvents === stoppedEventsToWait) { - resolve(stoppedEvents); - } - }); - }); - }; + .catch(error => { + console.error(chalk.red('Error while shutdowning charging stations simulator: '), error) + exit(exitCodes.gracefulShutdownError) + }) + } - private logPrefix = (): string => { - return Utils.logPrefix(' Bootstrap |'); - }; + private readonly logPrefix = (): string => { + return logPrefix(' Bootstrap |') + } }