-// Partial Copyright Jerome Benoit. 2021. All Rights Reserved.
+// Partial Copyright Jerome Benoit. 2021-2024. All Rights Reserved.
-import path from 'path';
-import { fileURLToPath } from 'url';
-import { isMainThread } from 'worker_threads';
+import { EventEmitter } from 'node:events'
+import { dirname, extname, join } from 'node:path'
+import process, { exit } from 'node:process'
+import { fileURLToPath } from 'node:url'
+import { isMainThread } from 'node:worker_threads'
-import chalk from 'chalk';
+import chalk from 'chalk'
+import { availableParallelism, type MessageHandler } from 'poolifier'
+import type { Worker } from 'worker_threads'
-import { version } from '../../package.json';
-import BaseError from '../exception/BaseError';
-import type { Storage } from '../performance/storage/Storage';
-import { StorageFactory } from '../performance/storage/StorageFactory';
+import { version } from '../../package.json'
+import { BaseError } from '../exception/index.js'
+import { type Storage, StorageFactory } from '../performance/index.js'
import {
- ChargingStationData,
- ChargingStationWorkerData,
- ChargingStationWorkerMessage,
- ChargingStationWorkerMessageData,
+ type ChargingStationData,
+ type ChargingStationOptions,
+ type ChargingStationWorkerData,
+ type ChargingStationWorkerEventError,
+ type ChargingStationWorkerMessage,
+ type ChargingStationWorkerMessageData,
ChargingStationWorkerMessageEvents,
-} from '../types/ChargingStationWorker';
-import type { StationTemplateUrl } from '../types/ConfigurationData';
-import type Statistics from '../types/Statistics';
-import Configuration from '../utils/Configuration';
-import logger from '../utils/Logger';
-import Utils from '../utils/Utils';
-import type WorkerAbstract from '../worker/WorkerAbstract';
-import WorkerFactory from '../worker/WorkerFactory';
-import { ChargingStationUtils } from './ChargingStationUtils';
-import type { AbstractUIServer } from './ui-server/AbstractUIServer';
-import UIServerFactory from './ui-server/UIServerFactory';
+ ConfigurationSection,
+ ProcedureName,
+ type SimulatorState,
+ type Statistics,
+ type StorageConfiguration,
+ type TemplateStatistics,
+ type UIServerConfiguration,
+ type WorkerConfiguration
+} from '../types/index.js'
+import {
+ Configuration,
+ Constants,
+ formatDurationMilliSeconds,
+ generateUUID,
+ handleUncaughtException,
+ handleUnhandledRejection,
+ isAsyncFunction,
+ isNotEmptyArray,
+ logger,
+ logPrefix
+} from '../utils/index.js'
+import { type WorkerAbstract, WorkerFactory } from '../worker/index.js'
+import { buildTemplateName, waitChargingStationEvents } from './Helpers.js'
+import type { AbstractUIServer } from './ui-server/AbstractUIServer.js'
+import { UIServerFactory } from './ui-server/UIServerFactory.js'
-const moduleName = 'Bootstrap';
+const moduleName = 'Bootstrap'
-const missingChargingStationsConfigurationExitCode = 1;
-const noChargingStationTemplatesExitCode = 2;
+enum exitCodes {
+ succeeded = 0,
+ missingChargingStationsConfiguration = 1,
+ duplicateChargingStationTemplateUrls = 2,
+ noChargingStationTemplates = 3,
+ gracefulShutdownError = 4
+}
-export class Bootstrap {
- private static instance: Bootstrap | null = null;
- private workerImplementation: WorkerAbstract<ChargingStationWorkerData> | null = null;
- private readonly uiServer!: AbstractUIServer;
- private readonly storage!: Storage;
- private numberOfChargingStationTemplates!: number;
- private numberOfChargingStations!: number;
- private numberOfStartedChargingStations!: number;
- private readonly version: string = version;
- private started: boolean;
- private readonly workerScript: string;
+export class Bootstrap extends EventEmitter {
+ private static instance: Bootstrap | null = null
+ private workerImplementation?: WorkerAbstract<ChargingStationWorkerData>
+ private readonly uiServer: AbstractUIServer
+ private storage?: Storage
+ private readonly templateStatistics: Map<string, TemplateStatistics>
+ private readonly version: string = version
+ private initializedCounters: boolean
+ private started: boolean
+ private starting: boolean
+ private stopping: boolean
+ private uiServerStarted: boolean
- private constructor() {
- this.started = false;
- this.workerScript = path.join(
- path.resolve(path.dirname(fileURLToPath(import.meta.url)), '../'),
- 'charging-station',
- 'ChargingStationWorker' + path.extname(fileURLToPath(import.meta.url))
- );
- this.initialize();
- if (Configuration.getUIServer().enabled === true) {
- this.uiServer = UIServerFactory.getUIServerImplementation(
- Configuration.getUIServer().type,
- Configuration.getUIServer()
- );
+ private constructor () {
+ super()
+ for (const signal of ['SIGINT', 'SIGQUIT', 'SIGTERM']) {
+ process.on(signal, this.gracefulShutdown.bind(this))
+ }
+ // Enable unconditionally for now
+ handleUnhandledRejection()
+ handleUncaughtException()
+ this.started = false
+ this.starting = false
+ this.stopping = false
+ this.initializedCounters = false
+ this.uiServerStarted = false
+ this.templateStatistics = new Map<string, TemplateStatistics>()
+ this.initializeWorkerImplementation(
+ Configuration.getConfigurationSection<WorkerConfiguration>(ConfigurationSection.worker)
+ )
+ this.uiServer = UIServerFactory.getUIServerImplementation(
+ Configuration.getConfigurationSection<UIServerConfiguration>(ConfigurationSection.uiServer)
+ )
+ this.initializeCounters()
+ Configuration.configurationChangeCallback = async () => {
+ if (isMainThread) {
+ await Bootstrap.getInstance().restart()
+ }
}
- Configuration.getPerformanceStorage().enabled === true &&
- (this.storage = StorageFactory.getStorage(
- Configuration.getPerformanceStorage().type,
- Configuration.getPerformanceStorage().uri,
- this.logPrefix()
- ));
- Configuration.setConfigurationChangeCallback(async () => 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<void> {
- if (isMainThread && this.started === false) {
- try {
- this.initialize();
- await this.storage?.open();
- await this.workerImplementation.start();
- this.uiServer?.start();
- const stationTemplateUrls = Configuration.getStationTemplateUrls();
- this.numberOfChargingStationTemplates = stationTemplateUrls.length;
- // Start ChargingStation object in worker thread
- if (!Utils.isEmptyArray(stationTemplateUrls)) {
- for (const stationTemplateUrl of stationTemplateUrls) {
- try {
- const nbStations = stationTemplateUrl.numberOfStations ?? 0;
- for (let index = 1; index <= nbStations; index++) {
- await this.startChargingStation(index, stationTemplateUrl);
- }
- } catch (error) {
- console.error(
- chalk.red(
- 'Error at starting charging station with template file ' +
- stationTemplateUrl.file +
- ': '
- ),
- error
- );
- }
+ public get numberOfChargingStationTemplates (): number {
+ return this.templateStatistics.size
+ }
+
+ public get numberOfConfiguredChargingStations (): number {
+ return [...this.templateStatistics.values()].reduce(
+ (accumulator, value) => accumulator + value.configured,
+ 0
+ )
+ }
+
+ public getState (): SimulatorState {
+ return {
+ version: this.version,
+ started: this.started,
+ templateStatistics: this.templateStatistics
+ }
+ }
+
+ public getLastIndex (templateName: string): number {
+ // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+ const indexes = [...this.templateStatistics.get(templateName)!.indexes]
+ .concat(0)
+ .sort((a, b) => a - b)
+ for (let i = 0; i < indexes.length - 1; i++) {
+ if (indexes[i + 1] - indexes[i] !== 1) {
+ return indexes[i]
+ }
+ }
+ return indexes[indexes.length - 1]
+ }
+
+ public getPerformanceStatistics (): IterableIterator<Statistics> | undefined {
+ return this.storage?.getPerformanceStatistics()
+ }
+
+ private get numberOfAddedChargingStations (): number {
+ return [...this.templateStatistics.values()].reduce(
+ (accumulator, value) => accumulator + value.added,
+ 0
+ )
+ }
+
+ private get numberOfStartedChargingStations (): number {
+ return [...this.templateStatistics.values()].reduce(
+ (accumulator, value) => accumulator + value.started,
+ 0
+ )
+ }
+
+ public async start (): Promise<void> {
+ if (!this.started) {
+ if (!this.starting) {
+ this.starting = true
+ this.on(ChargingStationWorkerMessageEvents.added, this.workerEventAdded)
+ this.on(ChargingStationWorkerMessageEvents.deleted, this.workerEventDeleted)
+ 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.on(
+ ChargingStationWorkerMessageEvents.workerElementError,
+ (eventError: ChargingStationWorkerEventError) => {
+ logger.error(
+ `${this.logPrefix()} ${moduleName}.start: Error occurred while handling '${eventError.event}' event on worker:`,
+ eventError
+ )
}
+ )
+ this.initializeCounters()
+ // eslint-disable-next-line @typescript-eslint/unbound-method
+ if (isAsyncFunction(this.workerImplementation?.start)) {
+ await this.workerImplementation.start()
} else {
- console.warn(
- chalk.yellow("'stationTemplateUrls' not defined or empty in configuration, exiting")
- );
- process.exit(missingChargingStationsConfigurationExitCode);
+ (this.workerImplementation?.start as () => void)()
}
- if (this.numberOfChargingStations === 0) {
- console.warn(
- chalk.yellow('No charging station template enabled in configuration, exiting')
- );
- process.exit(noChargingStationTemplatesExitCode);
- } else {
- 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 ${
- ChargingStationUtils.workerDynamicPoolInUse()
- ? `${Configuration.getWorker().poolMinSize.toString()}/`
- : ''
- }${this.workerImplementation.size}${
- ChargingStationUtils.workerPoolInUse()
- ? `/${Configuration.getWorker().poolMaxSize.toString()}`
- : ''
- } worker(s) concurrently running in '${Configuration.getWorker().processType}' mode${
- this.workerImplementation.maxElementsPerWorker
- ? ` (${this.workerImplementation.maxElementsPerWorker} charging station(s) per worker)`
- : ''
- }`
+ const performanceStorageConfiguration =
+ Configuration.getConfigurationSection<StorageConfiguration>(
+ 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()
+ }
+ if (
+ !this.uiServerStarted &&
+ Configuration.getConfigurationSection<UIServerConfiguration>(
+ ConfigurationSection.uiServer
+ ).enabled === true
+ ) {
+ this.uiServer.start()
+ this.uiServerStarted = true
+ }
+ // 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 = 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
)
- );
+ }
}
- this.started = true;
- } catch (error) {
- console.error(chalk.red('Bootstrap start error: '), error);
+ const workerConfiguration = Configuration.getConfigurationSection<WorkerConfiguration>(
+ ConfigurationSection.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)`
+ : ''
+ }`
+ )
+ )
+ 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<void> {
- if (isMainThread && this.started === true) {
- await this.workerImplementation.stop();
- this.workerImplementation = null;
- this.uiServer?.stop();
- await this.storage?.close();
+ public async stop (): Promise<void> {
+ 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
+ )
+ )
+ try {
+ await this.waitChargingStationsStopped()
+ } catch (error) {
+ console.error(chalk.red('Error while waiting for charging stations to stop: '), error)
+ }
+ await this.workerImplementation?.stop()
+ this.removeAllListeners()
+ this.uiServer.clearCaches()
+ this.initializedCounters = false
+ 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('Trying to stop the charging stations simulator while not started'));
+ console.error(chalk.red('Cannot stop an already stopped charging stations simulator'))
+ }
+ }
+
+ private async restart (): Promise<void> {
+ await this.stop()
+ // FIXME: initialize worker implementation only if the worker section has changed
+ this.initializeWorkerImplementation(
+ Configuration.getConfigurationSection<WorkerConfiguration>(ConfigurationSection.worker)
+ )
+ if (
+ this.uiServerStarted &&
+ Configuration.getConfigurationSection<UIServerConfiguration>(ConfigurationSection.uiServer)
+ .enabled !== true
+ ) {
+ this.uiServer.stop()
+ this.uiServerStarted = false
}
- this.started = false;
+ await this.start()
}
- public async restart(): Promise<void> {
- await this.stop();
- this.initialize();
- await this.start();
+ private async waitChargingStationsStopped (): Promise<string> {
+ return await new Promise<string>((resolve, reject: (reason?: unknown) => void) => {
+ const waitTimeout = setTimeout(() => {
+ const timeoutMessage = `Timeout ${formatDurationMilliSeconds(
+ Constants.STOP_CHARGING_STATIONS_TIMEOUT
+ )} reached at stopping charging stations`
+ console.warn(chalk.yellow(timeoutMessage))
+ reject(new Error(timeoutMessage))
+ }, Constants.STOP_CHARGING_STATIONS_TIMEOUT)
+ waitChargingStationEvents(
+ this,
+ ChargingStationWorkerMessageEvents.stopped,
+ this.numberOfStartedChargingStations
+ )
+ .then(() => {
+ resolve('Charging stations stopped')
+ })
+ .catch(reject)
+ .finally(() => {
+ clearTimeout(waitTimeout)
+ })
+ })
}
- private initializeWorkerImplementation(): void {
- !this.workerImplementation &&
- (this.workerImplementation = WorkerFactory.getWorkerImplementation<ChargingStationWorkerData>(
- this.workerScript,
- Configuration.getWorker().processType,
- {
- workerStartDelay: Configuration.getWorker().startDelay,
- elementStartDelay: Configuration.getWorker().elementStartDelay,
- poolMaxSize: Configuration.getWorker().poolMaxSize,
- poolMinSize: Configuration.getWorker().poolMinSize,
- elementsPerWorker: Configuration.getWorker().elementsPerWorker,
- poolOptions: {
- workerChoiceStrategy: Configuration.getWorker().poolStrategy,
- },
- messageHandler: this.messageHandler.bind(this) as (
- msg: ChargingStationWorkerMessage<ChargingStationWorkerMessageData>
- ) => void,
+ private initializeWorkerImplementation (workerConfiguration: WorkerConfiguration): void {
+ if (!isMainThread) {
+ return
+ }
+ let elementsPerWorker: number
+ switch (workerConfiguration.elementsPerWorker) {
+ case 'all':
+ elementsPerWorker = this.numberOfConfiguredChargingStations
+ break
+ case 'auto':
+ default:
+ elementsPerWorker =
+ this.numberOfConfiguredChargingStations > availableParallelism()
+ ? Math.round(this.numberOfConfiguredChargingStations / (availableParallelism() * 1.5))
+ : 1
+ break
+ }
+ this.workerImplementation = WorkerFactory.getWorkerImplementation<ChargingStationWorkerData>(
+ join(
+ dirname(fileURLToPath(import.meta.url)),
+ `ChargingStationWorker${extname(fileURLToPath(import.meta.url))}`
+ ),
+ // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+ workerConfiguration.processType!,
+ {
+ workerStartDelay: workerConfiguration.startDelay,
+ elementAddDelay: workerConfiguration.elementAddDelay,
+ // 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,
+ poolOptions: {
+ messageHandler: this.messageHandler.bind(this) as MessageHandler<Worker>,
+ ...(workerConfiguration.resourceLimits != null && {
+ workerOptions: { resourceLimits: workerConfiguration.resourceLimits }
+ })
}
- ));
+ }
+ )
}
- private messageHandler(
+ private messageHandler (
msg: ChargingStationWorkerMessage<ChargingStationWorkerMessageData>
): void {
// logger.debug(
// `${this.logPrefix()} ${moduleName}.messageHandler: Worker channel message received: ${JSON.stringify(
// msg,
- // null,
+ // undefined,
// 2
// )}`
- // );
+ // )
try {
- switch (msg.id) {
- case ChargingStationWorkerMessageEvents.STARTED:
- this.workerEventStarted(msg.data as ChargingStationData);
- break;
- case ChargingStationWorkerMessageEvents.STOPPED:
- this.workerEventStopped(msg.data as ChargingStationData);
- break;
- case ChargingStationWorkerMessageEvents.UPDATED:
- this.workerEventUpdated(msg.data as ChargingStationData);
- break;
- case ChargingStationWorkerMessageEvents.PERFORMANCE_STATISTICS:
- this.workerEventPerformanceStatistics(msg.data as Statistics);
- break;
+ switch (msg.event) {
+ case ChargingStationWorkerMessageEvents.added:
+ this.emit(ChargingStationWorkerMessageEvents.added, msg.data)
+ break
+ case ChargingStationWorkerMessageEvents.deleted:
+ this.emit(ChargingStationWorkerMessageEvents.deleted, msg.data)
+ break
+ case ChargingStationWorkerMessageEvents.started:
+ this.emit(ChargingStationWorkerMessageEvents.started, msg.data)
+ break
+ case ChargingStationWorkerMessageEvents.stopped:
+ this.emit(ChargingStationWorkerMessageEvents.stopped, msg.data)
+ break
+ case ChargingStationWorkerMessageEvents.updated:
+ this.emit(ChargingStationWorkerMessageEvents.updated, msg.data)
+ break
+ case ChargingStationWorkerMessageEvents.performanceStatistics:
+ this.emit(ChargingStationWorkerMessageEvents.performanceStatistics, msg.data)
+ break
+ case ChargingStationWorkerMessageEvents.addedWorkerElement:
+ this.emit(ChargingStationWorkerMessageEvents.addWorkerElement, msg.data)
+ break
+ case ChargingStationWorkerMessageEvents.workerElementError:
+ this.emit(ChargingStationWorkerMessageEvents.workerElementError, msg.data)
+ break
default:
throw new BaseError(
- `Unknown event type: '${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)
+ logger.info(
+ `${this.logPrefix()} ${moduleName}.workerEventAdded: Charging station ${
+ data.stationInfo.chargingStationId
+ } (hashId: ${data.stationInfo.hashId}) added (${
+ this.numberOfAddedChargingStations
+ } added from ${this.numberOfConfiguredChargingStations} configured charging station(s))`
+ )
+ }
+
+ private readonly workerEventDeleted = (data: ChargingStationData): void => {
+ this.uiServer.chargingStations.delete(data.stationInfo.hashId)
+ // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+ const templateStatistics = this.templateStatistics.get(data.stationInfo.templateName)!
+ --templateStatistics.added
+ templateStatistics.indexes.delete(data.stationInfo.templateIndex)
+ logger.info(
+ `${this.logPrefix()} ${moduleName}.workerEventDeleted: Charging station ${
+ data.stationInfo.chargingStationId
+ } (hashId: ${data.stationInfo.hashId}) deleted (${
+ this.numberOfAddedChargingStations
+ } added from ${this.numberOfConfiguredChargingStations} configured charging station(s))`
+ )
}
- private workerEventStopped(data: ChargingStationData) {
- this.uiServer?.chargingStations.set(data.stationInfo.hashId, data);
- --this.numberOfStartedChargingStations;
+ private readonly workerEventStarted = (data: ChargingStationData): void => {
+ this.uiServer.chargingStations.set(data.stationInfo.hashId, data)
+ // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+ ++this.templateStatistics.get(data.stationInfo.templateName)!.started
+ logger.info(
+ `${this.logPrefix()} ${moduleName}.workerEventStarted: Charging station ${
+ data.stationInfo.chargingStationId
+ } (hashId: ${data.stationInfo.hashId}) started (${
+ this.numberOfStartedChargingStations
+ } started from ${this.numberOfAddedChargingStations} added charging station(s))`
+ )
}
- private workerEventUpdated(data: ChargingStationData) {
- this.uiServer?.chargingStations.set(data.stationInfo.hashId, data);
+ private readonly workerEventStopped = (data: ChargingStationData): void => {
+ this.uiServer.chargingStations.set(data.stationInfo.hashId, data)
+ // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+ --this.templateStatistics.get(data.stationInfo.templateName)!.started
+ logger.info(
+ `${this.logPrefix()} ${moduleName}.workerEventStopped: Charging station ${
+ data.stationInfo.chargingStationId
+ } (hashId: ${data.stationInfo.hashId}) stopped (${
+ this.numberOfStartedChargingStations
+ } started from ${this.numberOfAddedChargingStations} added charging station(s))`
+ )
}
- private workerEventPerformanceStatistics = (data: Statistics) => {
- this.storage.storePerformanceStatistics(data) as void;
- };
+ private readonly workerEventUpdated = (data: ChargingStationData): void => {
+ this.uiServer.chargingStations.set(data.stationInfo.hashId, data)
+ }
- private initialize() {
- this.numberOfChargingStationTemplates = 0;
- this.numberOfChargingStations = 0;
- this.numberOfStartedChargingStations = 0;
- this.initializeWorkerImplementation();
+ 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<void>
+ )(data).catch(Constants.EMPTY_FUNCTION)
+ } else {
+ (this.storage?.storePerformanceStatistics as (performanceStatistics: Statistics) => void)(
+ data
+ )
+ }
+ }
+
+ 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) {
+ const templateName = buildTemplateName(stationTemplateUrl.file)
+ this.templateStatistics.set(templateName, {
+ configured: stationTemplateUrl.numberOfStations,
+ added: 0,
+ started: 0,
+ indexes: new Set<number>()
+ })
+ this.uiServer.chargingStationTemplates.add(templateName)
+ }
+ if (this.templateStatistics.size !== stationTemplateUrls.length) {
+ console.error(
+ chalk.red(
+ "'stationTemplateUrls' contains duplicate entries, please check your configuration"
+ )
+ )
+ exit(exitCodes.duplicateChargingStationTemplateUrls)
+ }
+ } else {
+ console.error(
+ chalk.red("'stationTemplateUrls' not defined or empty, please check your configuration")
+ )
+ exit(exitCodes.missingChargingStationsConfiguration)
+ }
+ if (
+ this.numberOfConfiguredChargingStations === 0 &&
+ Configuration.getConfigurationSection<UIServerConfiguration>(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.initializedCounters = true
+ }
}
- private async startChargingStation(
+ public async addChargingStation (
index: number,
- stationTemplateUrl: StationTemplateUrl
+ templateFile: string,
+ options?: ChargingStationOptions
): Promise<void> {
- const workerData: ChargingStationWorkerData = {
+ if (!this.started && !this.starting) {
+ throw new BaseError(
+ 'Cannot add charging station while the charging stations simulator is not started'
+ )
+ }
+ await this.workerImplementation?.addElement({
index,
- templateFile: path.join(
- path.resolve(path.dirname(fileURLToPath(import.meta.url)), '../'),
+ templateFile: join(
+ dirname(fileURLToPath(import.meta.url)),
'assets',
'station-templates',
- stationTemplateUrl.file
+ templateFile
),
- };
- await this.workerImplementation.addElement(workerData);
- ++this.numberOfChargingStations;
+ options
+ })
+ // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+ const templateStatistics = this.templateStatistics.get(buildTemplateName(templateFile))!
+ ++templateStatistics.added
+ templateStatistics.indexes.add(index)
+ }
+
+ private gracefulShutdown (): void {
+ this.stop()
+ .then(() => {
+ console.info(chalk.green('Graceful shutdown'))
+ this.uiServer.stop()
+ this.uiServerStarted = false
+ this.waitChargingStationsStopped()
+ .then(() => {
+ exit(exitCodes.succeeded)
+ })
+ .catch(() => {
+ exit(exitCodes.gracefulShutdownError)
+ })
+ })
+ .catch((error: unknown) => {
+ 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 |')
}
}
repositories / e-mobility-charging-stations-simulator.git / blobdiff