-// Partial Copyright Jerome Benoit. 2021. All Rights Reserved.
+// Partial Copyright Jerome Benoit. 2021-2023. All Rights Reserved.
-import path from 'path';
-import { fileURLToPath } from 'url';
-import { isMainThread } from 'worker_threads';
+import path from 'node:path';
+import { fileURLToPath } from 'node:url';
+import { type Worker, isMainThread } from 'node:worker_threads';
import chalk from 'chalk';
-import { version } from '../../package.json';
-import { Storage } from '../performance/storage/Storage';
-import { StorageFactory } from '../performance/storage/StorageFactory';
+import { ChargingStationUtils } from './ChargingStationUtils';
+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 {
- ChargingStationWorkerData,
- ChargingStationWorkerMessage,
+ type ChargingStationData,
+ type ChargingStationWorkerData,
+ type ChargingStationWorkerMessage,
+ type ChargingStationWorkerMessageData,
ChargingStationWorkerMessageEvents,
-} from '../types/ChargingStationWorker';
-import { StationTemplateUrl } from '../types/ConfigurationData';
-import Statistics from '../types/Statistics';
-import { ApplicationProtocol } from '../types/UIProtocol';
-import Configuration from '../utils/Configuration';
-import Utils from '../utils/Utils';
-import WorkerAbstract from '../worker/WorkerAbstract';
-import WorkerFactory from '../worker/WorkerFactory';
-import { ChargingStationUtils } from './ChargingStationUtils';
-import { AbstractUIServer } from './ui-server/AbstractUIServer';
-import { UIServiceUtils } from './ui-server/ui-services/UIServiceUtils';
-import UIServerFactory from './ui-server/UIServerFactory';
+ type StationTemplateUrl,
+ type Statistics,
+} from '../types';
+import { Configuration, Utils, logger } from '../utils';
+import { type MessageHandler, type WorkerAbstract, WorkerFactory } from '../worker';
+
+const moduleName = 'Bootstrap';
+
+enum exitCodes {
+ missingChargingStationsConfiguration = 1,
+ noChargingStationTemplates = 2,
+}
-export default class Bootstrap {
+export class Bootstrap {
private static instance: Bootstrap | null = null;
- private workerImplementation: WorkerAbstract<ChargingStationWorkerData> | null = null;
- private readonly uiServer!: AbstractUIServer;
+ public numberOfChargingStations!: number;
+ public numberOfChargingStationTemplates!: number;
+ private workerImplementation: WorkerAbstract<ChargingStationWorkerData> | null;
+ private readonly uiServer!: AbstractUIServer | null;
private readonly storage!: Storage;
- private numberOfChargingStationTemplates!: number;
- private numberOfChargingStations!: number;
- private readonly version: string = version;
+ private numberOfStartedChargingStations!: number;
+ private readonly version: string = packageJson.version;
+ private initializedCounters: boolean;
private started: boolean;
private readonly workerScript: string;
private constructor() {
+ // Enable unconditionally for now
+ this.logUnhandledRejection();
+ this.logUncaughtException();
+ this.initializedCounters = false;
this.started = false;
+ this.initializeCounters();
+ this.workerImplementation = null;
this.workerScript = path.join(
path.resolve(path.dirname(fileURLToPath(import.meta.url)), '../'),
'charging-station',
- 'ChargingStationWorker' + path.extname(fileURLToPath(import.meta.url))
+ `ChargingStationWorker${path.extname(fileURLToPath(import.meta.url))}`
);
- this.initialize();
- Configuration.getUIServer().enabled &&
- (this.uiServer = UIServerFactory.getUIServerImplementation(ApplicationProtocol.WS, {
- ...Configuration.getUIServer().options,
- handleProtocols: UIServiceUtils.handleProtocols,
- }));
- Configuration.getPerformanceStorage().enabled &&
+ Configuration.getUIServer().enabled === true &&
+ (this.uiServer = UIServerFactory.getUIServerImplementation(Configuration.getUIServer()));
+ Configuration.getPerformanceStorage().enabled === true &&
(this.storage = StorageFactory.getStorage(
Configuration.getPerformanceStorage().type,
Configuration.getPerformanceStorage().uri,
}
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) {
- 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
- );
- }
+ 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);
}
- } else {
- console.warn(
- chalk.yellow("'stationTemplateUrls' not defined or empty in configuration, exiting")
- );
- }
- if (this.numberOfChargingStations === 0) {
- console.warn(
- chalk.yellow('No charging station template enabled in configuration, exiting')
- );
- } else {
- console.log(
- 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)`
- : ''
- }`
- )
+ } 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);
}
+ 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${
+ !Utils.isNullOrUndefined(this.workerImplementation?.maxElementsPerWorker)
+ ? ` (${this.workerImplementation?.maxElementsPerWorker} charging station(s) per worker)`
+ : ''
+ }`
+ )
+ );
+ this.started = true;
} else {
console.error(chalk.red('Cannot start an already started charging stations simulator'));
}
}
public async stop(): Promise<void> {
- if (isMainThread && this.started) {
- await this.workerImplementation.stop();
+ if (isMainThread && this.started === true) {
+ await this.workerImplementation?.stop();
this.workerImplementation = null;
this.uiServer?.stop();
await this.storage?.close();
+ this.initializedCounters = false;
+ this.started = false;
} else {
- console.error(chalk.red('Trying to stop the charging stations simulator while not started'));
+ 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 initializeWorkerImplementation(): void {
- !this.workerImplementation &&
+ this.workerImplementation === null &&
(this.workerImplementation = WorkerFactory.getWorkerImplementation<ChargingStationWorkerData>(
this.workerScript,
Configuration.getWorker().processType,
poolOptions: {
workerChoiceStrategy: Configuration.getWorker().poolStrategy,
},
- messageHandler: async (msg: ChargingStationWorkerMessage) => {
- if (msg.id === ChargingStationWorkerMessageEvents.STARTED) {
- this.uiServer.chargingStations.add(msg.data.id as string);
- } else if (msg.id === ChargingStationWorkerMessageEvents.STOPPED) {
- this.uiServer.chargingStations.delete(msg.data.id as string);
- } else if (msg.id === ChargingStationWorkerMessageEvents.PERFORMANCE_STATISTICS) {
- await this.storage.storePerformanceStatistics(msg.data as unknown as Statistics);
- }
- },
+ messageHandler: this.messageHandler.bind(this) as MessageHandler<Worker>,
}
));
}
- private initialize() {
- this.numberOfChargingStations = 0;
- this.numberOfChargingStationTemplates = 0;
- this.initializeWorkerImplementation();
+ private messageHandler(
+ msg: ChargingStationWorkerMessage<ChargingStationWorkerMessageData>
+ ): void {
+ // logger.debug(
+ // `${this.logPrefix()} ${moduleName}.messageHandler: Worker channel message received: ${JSON.stringify(
+ // msg,
+ // null,
+ // 2
+ // )}`
+ // );
+ try {
+ switch (msg.id) {
+ case ChargingStationWorkerMessageEvents.started:
+ this.workerEventStarted(msg.data as ChargingStationData);
+ break;
+ case ChargingStationWorkerMessageEvents.stopped:
+ this.workerEventStopped(msg.data as ChargingStationData);
+ break;
+ case ChargingStationWorkerMessageEvents.updated:
+ this.workerEventUpdated(msg.data as ChargingStationData);
+ break;
+ case ChargingStationWorkerMessageEvents.performanceStatistics:
+ this.workerEventPerformanceStatistics(msg.data as Statistics);
+ break;
+ default:
+ throw new BaseError(
+ `Unknown event type: '${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
+ );
+ }
+ }
+
+ 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 initializeCounters() {
+ if (this.initializedCounters === false) {
+ this.numberOfChargingStationTemplates = 0;
+ this.numberOfChargingStations = 0;
+ const stationTemplateUrls = Configuration.getStationTemplateUrls();
+ if (Utils.isNotEmptyArray(stationTemplateUrls)) {
+ this.numberOfChargingStationTemplates = stationTemplateUrls.length;
+ for (const stationTemplateUrl of stationTemplateUrls) {
+ this.numberOfChargingStations += stationTemplateUrl.numberOfStations ?? 0;
+ }
+ } else {
+ console.warn(
+ chalk.yellow("'stationTemplateUrls' not defined or empty in configuration, exiting")
+ );
+ process.exit(exitCodes.missingChargingStationsConfiguration);
+ }
+ if (this.numberOfChargingStations === 0) {
+ console.warn(
+ chalk.yellow('No charging station template enabled in configuration, exiting')
+ );
+ process.exit(exitCodes.noChargingStationTemplates);
+ }
+ this.numberOfStartedChargingStations = 0;
+ this.initializedCounters = true;
+ }
+ }
+
+ 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 = {
+ await this.workerImplementation?.addElement({
index,
templateFile: path.join(
path.resolve(path.dirname(fileURLToPath(import.meta.url)), '../'),
'assets',
'station-templates',
- path.basename(stationTemplateUrl.file)
+ stationTemplateUrl.file
),
- };
- await this.workerImplementation.addElement(workerData);
- this.numberOfChargingStations++;
+ });
}
- private logPrefix(): string {
+ private logPrefix = (): string => {
return Utils.logPrefix(' Bootstrap |');
- }
+ };
}
repositories / e-mobility-charging-stations-simulator.git / blobdiff