// Partial Copyright Jerome Benoit. 2021. All Rights Reserved.
+import path from 'path';
+import { fileURLToPath } from 'url';
+import { isMainThread } from 'worker_threads';
+
+import chalk from 'chalk';
+
+import { version } from '../../package.json';
+import BaseError from '../exception/BaseError';
+import { Storage } from '../performance/storage/Storage';
+import { StorageFactory } from '../performance/storage/StorageFactory';
import {
+ ChargingStationData,
ChargingStationWorkerData,
ChargingStationWorkerMessage,
+ ChargingStationWorkerMessageData,
ChargingStationWorkerMessageEvents,
} from '../types/ChargingStationWorker';
-
-import { AbstractUIServer } from './ui-server/AbstractUIServer';
-import { ApplicationProtocol } from '../types/UIProtocol';
-import { ChargingStationUtils } from './ChargingStationUtils';
-import Configuration from '../utils/Configuration';
import { StationTemplateUrl } from '../types/ConfigurationData';
import Statistics from '../types/Statistics';
-import { Storage } from '../performance/storage/Storage';
-import { StorageFactory } from '../performance/storage/StorageFactory';
-import UIServerFactory from './ui-server/UIServerFactory';
-import { UIServiceUtils } from './ui-server/ui-services/UIServiceUtils';
+import { ApplicationProtocol } from '../types/UIProtocol';
+import Configuration from '../utils/Configuration';
+import logger from '../utils/Logger';
import Utils from '../utils/Utils';
import WorkerAbstract from '../worker/WorkerAbstract';
import WorkerFactory from '../worker/WorkerFactory';
-import chalk from 'chalk';
-import { fileURLToPath } from 'url';
-import { isMainThread } from 'worker_threads';
-import path from 'path';
-import { version } from '../../package.json';
+import { ChargingStationUtils } from './ChargingStationUtils';
+import { AbstractUIServer } from './ui-server/AbstractUIServer';
+import { UIServiceUtils } from './ui-server/ui-services/UIServiceUtils';
+import UIServerFactory from './ui-server/UIServerFactory';
+
+const moduleName = 'Bootstrap';
+
+const missingChargingStationsConfigurationExitCode = 1;
+const noChargingStationTemplatesExitCode = 2;
export default class Bootstrap {
private static instance: Bootstrap | null = null;
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;
'ChargingStationWorker' + path.extname(fileURLToPath(import.meta.url))
);
this.initialize();
- this.initWorkerImplementation();
Configuration.getUIServer().enabled &&
(this.uiServer = UIServerFactory.getUIServerImplementation(ApplicationProtocol.WS, {
...Configuration.getUIServer().options,
}
public static getInstance(): Bootstrap {
- if (!Bootstrap.instance) {
+ if (Bootstrap.instance === null) {
Bootstrap.instance = new Bootstrap();
}
return Bootstrap.instance;
console.warn(
chalk.yellow("'stationTemplateUrls' not defined or empty in configuration, exiting")
);
+ process.exit(missingChargingStationsConfigurationExitCode);
}
if (this.numberOfChargingStations === 0) {
console.warn(
chalk.yellow('No charging station template enabled in configuration, exiting')
);
+ process.exit(noChargingStationTemplatesExitCode);
} else {
- console.log(
+ 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.getWorkerPoolMinSize().toString()}/`
+ ? `${Configuration.getWorker().poolMinSize.toString()}/`
: ''
}${this.workerImplementation.size}${
ChargingStationUtils.workerPoolInUse()
- ? `/${Configuration.getWorkerPoolMaxSize().toString()}`
+ ? `/${Configuration.getWorker().poolMaxSize.toString()}`
: ''
- } worker(s) concurrently running in '${Configuration.getWorkerProcess()}' mode${
+ } worker(s) concurrently running in '${Configuration.getWorker().processType}' mode${
this.workerImplementation.maxElementsPerWorker
? ` (${this.workerImplementation.maxElementsPerWorker} charging station(s) per worker)`
: ''
public async stop(): Promise<void> {
if (isMainThread && this.started) {
await this.workerImplementation.stop();
+ this.workerImplementation = null;
this.uiServer?.stop();
await this.storage?.close();
} else {
public async restart(): Promise<void> {
await this.stop();
this.initialize();
- this.initWorkerImplementation();
await this.start();
}
- private initWorkerImplementation(): void {
- this.workerImplementation = WorkerFactory.getWorkerImplementation<ChargingStationWorkerData>(
- this.workerScript,
- Configuration.getWorkerProcess(),
- {
- workerStartDelay: Configuration.getWorkerStartDelay(),
- elementStartDelay: Configuration.getElementStartDelay(),
- poolMaxSize: Configuration.getWorkerPoolMaxSize(),
- poolMinSize: Configuration.getWorkerPoolMinSize(),
- elementsPerWorker: Configuration.getChargingStationsPerWorker(),
- poolOptions: {
- workerChoiceStrategy: Configuration.getWorkerPoolStrategy(),
- },
- 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);
- }
- },
+ 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 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
+ );
+ }
+ }
+
+ private workerEventStarted(data: ChargingStationData) {
+ this.uiServer?.chargingStations.set(data.hashId, data);
+ ++this.numberOfStartedChargingStations;
+ }
+
+ private workerEventStopped(data: ChargingStationData) {
+ this.uiServer?.chargingStations.set(data.hashId, data);
+ --this.numberOfStartedChargingStations;
+ }
+
+ private workerEventUpdated(data: ChargingStationData) {
+ this.uiServer?.chargingStations.set(data.hashId, data);
}
+ private workerEventPerformanceStatistics = (data: Statistics) => {
+ this.storage.storePerformanceStatistics(data) as void;
+ };
+
private initialize() {
- this.numberOfChargingStations = 0;
this.numberOfChargingStationTemplates = 0;
+ this.numberOfChargingStations = 0;
+ this.numberOfStartedChargingStations = 0;
+ this.initializeWorkerImplementation();
}
private async startChargingStation(
path.resolve(path.dirname(fileURLToPath(import.meta.url)), '../'),
'assets',
'station-templates',
- path.basename(stationTemplateUrl.file)
+ stationTemplateUrl.file
),
};
await this.workerImplementation.addElement(workerData);
- this.numberOfChargingStations++;
+ ++this.numberOfChargingStations;
}
private logPrefix(): string {
repositories / e-mobility-charging-stations-simulator.git / blobdiff