+// Partial Copyright Jerome Benoit. 2021-2023. All Rights Reserved.
+
+import path from 'path';
+import { fileURLToPath } from 'url';
+import { type Worker, isMainThread } from 'worker_threads';
+
+import chalk from 'chalk';
+
+import { ChargingStationUtils } from './ChargingStationUtils';
+import type { AbstractUIServer } from './ui-server/AbstractUIServer';
+import UIServerFactory from './ui-server/UIServerFactory';
+import { version } from '../../package.json';
+import BaseError from '../exception/BaseError';
+import type { Storage } from '../performance/storage/Storage';
+import { StorageFactory } from '../performance/storage/StorageFactory';
+import {
+ type ChargingStationData,
+ type ChargingStationWorkerData,
+ type ChargingStationWorkerMessage,
+ type ChargingStationWorkerMessageData,
+ ChargingStationWorkerMessageEvents,
+} from '../types/ChargingStationWorker';
+import type { StationTemplateUrl } from '../types/ConfigurationData';
+import type { Statistics } from '../types/Statistics';
+import type { MessageHandler } from '../types/Worker';
import Configuration from '../utils/Configuration';
-import { StationWorkerData } from '../types/Worker';
+import logger from '../utils/Logger';
import Utils from '../utils/Utils';
-import WorkerAbstract from '../worker/WorkerAbstract';
+import type WorkerAbstract from '../worker/WorkerAbstract';
import WorkerFactory from '../worker/WorkerFactory';
-import { isMainThread } from 'worker_threads';
-import path from 'path';
-export default class Bootstrap {
- private static instance: Bootstrap;
+const moduleName = 'Bootstrap';
+
+enum exitCodes {
+ missingChargingStationsConfiguration = 1,
+ noChargingStationTemplates = 2,
+}
+
+export class Bootstrap {
+ private static instance: Bootstrap | null = null;
+ private workerImplementation: WorkerAbstract<ChargingStationWorkerData> | null;
+ private readonly uiServer!: AbstractUIServer;
+ private readonly storage!: Storage;
+ private numberOfChargingStationTemplates!: number | undefined;
+ private numberOfChargingStations!: number;
+ private numberOfStartedChargingStations!: number;
+ private readonly version: string = version;
private started: boolean;
- private workerScript: string;
- private workerImplementationInstance: WorkerAbstract | null = null;
+ private readonly workerScript: string;
private constructor() {
this.started = false;
- this.workerScript = path.join(path.resolve(__dirname, '../'), 'charging-station', 'StationWorker.js');
- Configuration.setConfigurationChangeCallback(async () => this.restart());
+ this.workerImplementation = null;
+ this.workerScript = path.join(
+ path.resolve(path.dirname(fileURLToPath(import.meta.url)), '../'),
+ 'charging-station',
+ `ChargingStationWorker${path.extname(fileURLToPath(import.meta.url))}`
+ );
+ this.initialize();
+ 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());
}
public static getInstance(): Bootstrap {
- if (!Bootstrap.instance) {
+ if (Bootstrap.instance === null) {
Bootstrap.instance = new Bootstrap();
}
return Bootstrap.instance;
}
public async start(): Promise<void> {
- if (isMainThread && !this.started) {
+ if (isMainThread && this.started === false) {
try {
- let numStationsTotal = 0;
- await this.getWorkerImplementationInstance()?.start();
+ // Enable unconditionally for now
+ this.logUnhandledRejection();
+ this.logUncaughtException();
+ 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 (Configuration.getStationTemplateURLs()) {
- for (const stationURL of Configuration.getStationTemplateURLs()) {
+ if (!Utils.isEmptyArray(stationTemplateUrls)) {
+ for (const stationTemplateUrl of stationTemplateUrls) {
try {
- const nbStations = stationURL.numberOfStations ? stationURL.numberOfStations : 0;
+ const nbStations = stationTemplateUrl.numberOfStations ?? 0;
for (let index = 1; index <= nbStations; index++) {
- const workerData: StationWorkerData = {
- index,
- templateFile: path.join(path.resolve(__dirname, '../'), 'assets', 'station-templates', path.basename(stationURL.file))
- };
- await this.getWorkerImplementationInstance()?.addElement(workerData);
- numStationsTotal++;
+ await this.startChargingStation(index, stationTemplateUrl);
}
} catch (error) {
- console.error('Charging station start with template file ' + stationURL.file + ' error ', error);
+ console.error(
+ chalk.red(
+ `Error at starting charging station with template file ${stationTemplateUrl.file}: `
+ ),
+ error
+ );
}
}
} else {
- console.log('No stationTemplateURLs defined in configuration, exiting');
+ console.warn(
+ chalk.yellow("'stationTemplateUrls' not defined or empty in configuration, exiting")
+ );
+ process.exit(exitCodes.missingChargingStationsConfiguration);
}
- if (numStationsTotal === 0) {
- console.log('No charging station template enabled in configuration, exiting');
+ if (this.numberOfChargingStations === 0) {
+ console.warn(
+ chalk.yellow('No charging station template enabled in configuration, exiting')
+ );
+ process.exit(exitCodes.noChargingStationTemplates);
} else {
- console.log(`Charging station simulator started with ${numStationsTotal.toString()} charging station(s) and ${Utils.workerDynamicPoolInUse() ? `${Configuration.getWorkerPoolMinSize().toString()}/` : ''}${this.getWorkerImplementationInstance().size}${Utils.workerPoolInUse() ? `/${Configuration.getWorkerPoolMaxSize().toString()}` : ''} worker(s) concurrently running in '${Configuration.getWorkerProcess()}' mode${this.getWorkerImplementationInstance().maxElementsPerWorker ? ` (${this.getWorkerImplementationInstance().maxElementsPerWorker} charging station(s) per worker)` : ''}`);
+ 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)`
+ : ''
+ }`
+ )
+ );
}
this.started = true;
} catch (error) {
- console.error('Bootstrap start error ', error);
+ console.error(chalk.red('Bootstrap start error: '), error);
}
+ } else {
+ console.error(chalk.red('Cannot start an already started charging stations simulator'));
}
}
public async stop(): Promise<void> {
- if (isMainThread && this.started) {
- await this.getWorkerImplementationInstance()?.stop();
- // Nullify to force worker implementation instance creation
- this.workerImplementationInstance = null;
+ if (isMainThread && this.started === true) {
+ await this.workerImplementation?.stop();
+ this.workerImplementation = null;
+ this.uiServer?.stop();
+ await this.storage?.close();
+ this.started = false;
+ } else {
+ console.error(chalk.red('Cannot stop a not started charging stations simulator'));
}
- this.started = false;
}
public async restart(): Promise<void> {
await this.stop();
+ this.initialize();
await this.start();
}
- private getWorkerImplementationInstance(): WorkerAbstract | null {
- if (!this.workerImplementationInstance) {
- this.workerImplementationInstance = WorkerFactory.getWorkerImplementation<StationWorkerData>(this.workerScript, Configuration.getWorkerProcess(),
+ private initializeWorkerImplementation(): void {
+ this.workerImplementation === null &&
+ (this.workerImplementation = WorkerFactory.getWorkerImplementation<ChargingStationWorkerData>(
+ this.workerScript,
+ Configuration.getWorker().processType,
{
- startDelay: Configuration.getWorkerStartDelay(),
- poolMaxSize: Configuration.getWorkerPoolMaxSize(),
- poolMinSize: Configuration.getWorkerPoolMinSize(),
- elementsPerWorker: Configuration.getChargingStationsPerWorker(),
+ workerStartDelay: Configuration.getWorker().startDelay,
+ elementStartDelay: Configuration.getWorker().elementStartDelay,
+ poolMaxSize: Configuration.getWorker().poolMaxSize,
+ poolMinSize: Configuration.getWorker().poolMinSize,
+ elementsPerWorker: Configuration.getWorker().elementsPerWorker,
poolOptions: {
- workerChoiceStrategy: Configuration.getWorkerPoolStrategy()
- }
- });
+ workerChoiceStrategy: Configuration.getWorker().poolStrategy,
+ },
+ messageHandler: this.messageHandler.bind(this) as MessageHandler<Worker>,
+ }
+ ));
+ }
+
+ private messageHandler(
+ msg: ChargingStationWorkerMessage<ChargingStationWorkerMessageData>
+ ): void {
+ // logger.debug(
+ // `${this.logPrefix()} ${moduleName}.messageHandler: Worker channel message received: ${JSON.stringify(
+ // msg,
+ // null,
+ // 2
+ // )}`
+ // );
+ try {
+ switch (msg.id) {
+ case ChargingStationWorkerMessageEvents.STARTED:
+ this.workerEventStarted(msg.data as ChargingStationData);
+ break;
+ case ChargingStationWorkerMessageEvents.STOPPED:
+ this.workerEventStopped(msg.data as ChargingStationData);
+ break;
+ case ChargingStationWorkerMessageEvents.UPDATED:
+ this.workerEventUpdated(msg.data as ChargingStationData);
+ break;
+ case ChargingStationWorkerMessageEvents.PERFORMANCE_STATISTICS:
+ this.workerEventPerformanceStatistics(msg.data as Statistics);
+ break;
+ default:
+ throw new BaseError(
+ `Unknown event type: '${msg.id}' for data: ${JSON.stringify(msg.data, null, 2)}`
+ );
+ }
+ } catch (error) {
+ logger.error(
+ `${this.logPrefix()} ${moduleName}.messageHandler: Error occurred while handling '${
+ msg.id
+ }' event:`,
+ error
+ );
}
- return this.workerImplementationInstance;
+ }
+
+ private workerEventStarted = (data: ChargingStationData) => {
+ this.uiServer?.chargingStations.set(data.stationInfo.hashId, data);
+ ++this.numberOfStartedChargingStations;
+ logger.info(
+ `${this.logPrefix()} ${moduleName}.workerEventStarted: Charging station ${
+ data.stationInfo.chargingStationId
+ } (hashId: ${data.stationInfo.hashId}) started (${
+ this.numberOfStartedChargingStations
+ } started from ${this.numberOfChargingStations})`
+ );
+ };
+
+ private workerEventStopped = (data: ChargingStationData) => {
+ this.uiServer?.chargingStations.set(data.stationInfo.hashId, data);
+ --this.numberOfStartedChargingStations;
+ logger.info(
+ `${this.logPrefix()} ${moduleName}.workerEventStopped: Charging station ${
+ data.stationInfo.chargingStationId
+ } (hashId: ${data.stationInfo.hashId}) stopped (${
+ this.numberOfStartedChargingStations
+ } started from ${this.numberOfChargingStations})`
+ );
+ };
+
+ private workerEventUpdated = (data: ChargingStationData) => {
+ this.uiServer?.chargingStations.set(data.stationInfo.hashId, data);
+ };
+
+ private workerEventPerformanceStatistics = (data: Statistics) => {
+ this.storage.storePerformanceStatistics(data) as void;
+ };
+
+ private initialize() {
+ this.numberOfChargingStationTemplates = 0;
+ this.numberOfChargingStations = 0;
+ this.numberOfStartedChargingStations = 0;
+ this.initializeWorkerImplementation();
+ }
+
+ private logUncaughtException(): void {
+ process.on('uncaughtException', (error: Error) => {
+ console.error(chalk.red('Uncaught exception: '), error);
+ });
+ }
+
+ private logUnhandledRejection(): void {
+ process.on('unhandledRejection', (reason: unknown) => {
+ console.error(chalk.red('Unhandled rejection: '), reason);
+ });
+ }
+
+ private async startChargingStation(
+ index: number,
+ stationTemplateUrl: StationTemplateUrl
+ ): Promise<void> {
+ const workerData: ChargingStationWorkerData = {
+ index,
+ templateFile: path.join(
+ path.resolve(path.dirname(fileURLToPath(import.meta.url)), '../'),
+ 'assets',
+ 'station-templates',
+ stationTemplateUrl.file
+ ),
+ };
+ await this.workerImplementation?.addElement(workerData);
+ ++this.numberOfChargingStations;
+ }
+
+ private logPrefix(): string {
+ return Utils.logPrefix(' Bootstrap |');
}
}
repositories / e-mobility-charging-stations-simulator.git / blobdiff