import ConfigurationData, { StationTemplateURL } from '../types/ConfigurationData';
-import Bootstrap from '../charging-station/Bootstrap';
+import Constants from './Constants';
+import type { WorkerChoiceStrategy } from 'poolifier';
import { WorkerProcessType } from '../types/Worker';
import fs from 'fs';
+import path from 'path';
export default class Configuration {
- private static configurationFilePath = './src/assets/config.json';
+ private static configurationFilePath = path.join(path.resolve(__dirname, '../'), 'assets', 'config.json');
private static configurationFileWatcher: fs.FSWatcher;
- private static configuration: ConfigurationData;
+ private static configuration: ConfigurationData | null = null;
+ private static configurationChangeCallback: () => Promise<void>;
+
+ static setConfigurationChangeCallback(cb: () => Promise<void>): void {
+ Configuration.configurationChangeCallback = cb;
+ }
static getStatisticsDisplayInterval(): number {
// Read conf
static getStationTemplateURLs(): StationTemplateURL[] {
Configuration.getConfig().stationTemplateURLs.forEach((stationURL: StationTemplateURL) => {
if (!Configuration.isUndefined(stationURL['numberOfStation'])) {
- console.error(`Deprecated configuration key 'numberOfStation' usage for template file '${stationURL.file}' in 'stationTemplateURLs'. Use 'numberOfStations' instead`);
+ console.error(`${Configuration.logPrefix()} Deprecated configuration key 'numberOfStation' usage for template file '${stationURL.file}' in 'stationTemplateURLs'. Use 'numberOfStations' instead`);
}
});
// Read conf
return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'workerProcess') ? Configuration.getConfig().workerProcess : WorkerProcessType.WORKER_SET;
}
+ static getWorkerStartDelay(): number {
+ return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'workerStartDelay') ? Configuration.getConfig().workerStartDelay : Constants.WORKER_START_DELAY;
+ }
+
static getWorkerPoolMinSize(): number {
- return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'workerPoolMinSize') ? Configuration.getConfig().workerPoolMinSize : 4;
+ return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'workerPoolMinSize') ? Configuration.getConfig().workerPoolMinSize : Constants.DEFAULT_WORKER_POOL_MIN_SIZE;
}
static getWorkerPoolMaxSize(): number {
Configuration.deprecateConfigurationKey('workerPoolSize;', 'Use \'workerPoolMaxSize\' instead');
- return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'workerPoolMaxSize') ? Configuration.getConfig().workerPoolMaxSize : 16;
+ return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'workerPoolMaxSize') ? Configuration.getConfig().workerPoolMaxSize : Constants.DEFAULT_WORKER_POOL_MAX_SIZE;
+ }
+
+ static getWorkerPoolStrategy(): WorkerChoiceStrategy {
+ return Configuration.getConfig().workerPoolStrategy;
}
static getChargingStationsPerWorker(): number {
- return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'chargingStationsPerWorker') ? Configuration.getConfig().chargingStationsPerWorker : 1;
+ return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'chargingStationsPerWorker') ? Configuration.getConfig().chargingStationsPerWorker : Constants.DEFAULT_CHARGING_STATIONS_PER_WORKER;
}
static getLogConsole(): boolean {
return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'distributeStationsToTenantsEqually') ? Configuration.getConfig().distributeStationsToTenantsEqually : true;
}
+ private static logPrefix(): string {
+ return new Date().toLocaleString() + ' Simulator configuration |';
+ }
+
private static deprecateConfigurationKey(key: string, logMsgToAppend = '') {
if (!Configuration.isUndefined(Configuration.getConfig()[key])) {
- console.error(`Deprecated configuration key '${key}' usage${logMsgToAppend && '. ' + logMsgToAppend}`);
+ console.error(`${Configuration.logPrefix()} Deprecated configuration key '${key}' usage${logMsgToAppend && '. ' + logMsgToAppend}`);
}
}
// Read the config file
private static getConfig(): ConfigurationData {
if (!Configuration.configuration) {
- Configuration.configuration = JSON.parse(fs.readFileSync(Configuration.configurationFilePath, 'utf8')) as ConfigurationData;
+ try {
+ Configuration.configuration = JSON.parse(fs.readFileSync(Configuration.configurationFilePath, 'utf8')) as ConfigurationData;
+ } catch (error) {
+ Configuration.handleFileException(Configuration.logPrefix(), 'Configuration', Configuration.configurationFilePath, error);
+ }
if (!Configuration.configurationFileWatcher) {
Configuration.configurationFileWatcher = Configuration.getConfigurationFileWatcher();
}
}
private static getConfigurationFileWatcher(): fs.FSWatcher {
- return fs.watch(Configuration.configurationFilePath).on('change', async (e) => {
- // Nullify to force configuration file reading
- Configuration.configuration = null;
- await Bootstrap.getInstance().restart();
- });
+ try {
+ // eslint-disable-next-line @typescript-eslint/no-misused-promises
+ return fs.watch(Configuration.configurationFilePath).on('change', async (e): Promise<void> => {
+ // Nullify to force configuration file reading
+ Configuration.configuration = null;
+ if (!Configuration.isUndefined(Configuration.configurationChangeCallback)) {
+ await Configuration.configurationChangeCallback();
+ }
+ });
+ } catch (error) {
+ Configuration.handleFileException(Configuration.logPrefix(), 'Configuration', Configuration.configurationFilePath, error);
+ }
}
private static objectHasOwnProperty(object: any, property: string): boolean {
private static isUndefined(obj: any): boolean {
return typeof obj === 'undefined';
}
+
+ private static handleFileException(logPrefix: string, fileType: string, filePath: string, error: NodeJS.ErrnoException): void {
+ const prefix = logPrefix.length !== 0 ? logPrefix + ' ' : '';
+ if (error.code === 'ENOENT') {
+ console.error(prefix + fileType + ' file ' + filePath + ' not found: ', error);
+ } else {
+ console.error(prefix + fileType + ' file ' + filePath + ' opening error: ', error);
+ }
+ throw error;
+ }
}