src/utils/Configuration.ts

   1 import ConfigurationData, { StationTemplateUrl, StorageConfiguration, SupervisionUrlDistribution, UIWebSocketServerConfiguration } from '../types/ConfigurationData';
   2
   3 import Constants from './Constants';
   4 import { ServerOptions } from 'ws';
   5 import { StorageType } from '../types/Storage';
   6 import type { WorkerChoiceStrategy } from 'poolifier';
   7 import { WorkerProcessType } from '../types/Worker';
   8 import chalk from 'chalk';
   9 import fs from 'fs';
  10 import path from 'path';
  11
  12 export default class Configuration {
  13   private static configurationFilePath = path.join(path.resolve(__dirname, '../'), 'assets', 'config.json');
  14   private static configurationFileWatcher: fs.FSWatcher;
  15   private static configuration: ConfigurationData | null = null;
  16   private static configurationChangeCallback: () => Promise<void>;
  17
  18   static setConfigurationChangeCallback(cb: () => Promise<void>): void {
  19     Configuration.configurationChangeCallback = cb;
  20   }
  21
  22   static getLogStatisticsInterval(): number {
  23     Configuration.warnDeprecatedConfigurationKey('statisticsDisplayInterval', null, 'Use \'logStatisticsInterval\' instead');
  24     // Read conf
  25     return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'logStatisticsInterval') ? Configuration.getConfig().logStatisticsInterval : 60;
  26   }
  27
  28   static getUIWebSocketServer(): UIWebSocketServerConfiguration {
  29     let options: ServerOptions = {
  30       host: Constants.DEFAULT_UI_WEBSOCKET_SERVER_HOST,
  31       port: Constants.DEFAULT_UI_WEBSOCKET_SERVER_PORT
  32     };
  33     let uiWebSocketServerConfiguration: UIWebSocketServerConfiguration = {
  34       enabled: true,
  35       options
  36     };
  37     if (Configuration.objectHasOwnProperty(Configuration.getConfig(), 'uiWebSocketServer')) {
  38       if (Configuration.objectHasOwnProperty(Configuration.getConfig().uiWebSocketServer, 'options')) {
  39         options = {
  40           ...options,
  41           ...Configuration.objectHasOwnProperty(Configuration.getConfig().uiWebSocketServer.options, 'host') && { host: Configuration.getConfig().uiWebSocketServer.options.host },
  42           ...Configuration.objectHasOwnProperty(Configuration.getConfig().uiWebSocketServer.options, 'port') && { port: Configuration.getConfig().uiWebSocketServer.options.port }
  43         };
  44       }
  45       uiWebSocketServerConfiguration =
  46       {
  47         ...uiWebSocketServerConfiguration,
  48         ...Configuration.objectHasOwnProperty(Configuration.getConfig().uiWebSocketServer, 'enabled') && { enabled: Configuration.getConfig().uiWebSocketServer.enabled },
  49         options
  50       };
  51     }
  52     return uiWebSocketServerConfiguration;
  53   }
  54
  55   static getPerformanceStorage(): StorageConfiguration {
  56     Configuration.warnDeprecatedConfigurationKey('URI', 'performanceStorage', 'Use \'uri\' instead');
  57     let storageConfiguration: StorageConfiguration = {
  58       enabled: false,
  59       type: StorageType.JSON_FILE,
  60       uri: this.getDefaultPerformanceStorageUri(StorageType.JSON_FILE)
  61     };
  62     if (Configuration.objectHasOwnProperty(Configuration.getConfig(), 'performanceStorage')) {
  63       storageConfiguration =
  64       {
  65         ...storageConfiguration,
  66         ...Configuration.objectHasOwnProperty(Configuration.getConfig().performanceStorage, 'enabled') && { enabled: Configuration.getConfig().performanceStorage.enabled },
  67         ...Configuration.objectHasOwnProperty(Configuration.getConfig().performanceStorage, 'type') && { type: Configuration.getConfig().performanceStorage.type },
  68         ...Configuration.objectHasOwnProperty(Configuration.getConfig().performanceStorage, 'uri') && { uri: this.getDefaultPerformanceStorageUri(Configuration.getConfig()?.performanceStorage?.type ?? StorageType.JSON_FILE) }
  69       };
  70     }
  71     return storageConfiguration;
  72   }
  73
  74   static getAutoReconnectMaxRetries(): number {
  75     Configuration.warnDeprecatedConfigurationKey('autoReconnectTimeout', null, 'Use \'ConnectionTimeOut\' OCPP parameter in charging station template instead');
  76     Configuration.warnDeprecatedConfigurationKey('connectionTimeout', null, 'Use \'ConnectionTimeOut\' OCPP parameter in charging station template instead');
  77     Configuration.warnDeprecatedConfigurationKey('autoReconnectMaxRetries', null, 'Use it in charging station template instead');
  78     // Read conf
  79     if (Configuration.objectHasOwnProperty(Configuration.getConfig(), 'autoReconnectMaxRetries')) {
  80       return Configuration.getConfig().autoReconnectMaxRetries;
  81     }
  82   }
  83
  84   static getStationTemplateUrls(): StationTemplateUrl[] {
  85     Configuration.warnDeprecatedConfigurationKey('stationTemplateURLs', null, 'Use \'stationTemplateUrls\' instead');
  86     !Configuration.isUndefined(Configuration.getConfig()['stationTemplateURLs']) && (Configuration.getConfig().stationTemplateUrls = Configuration.getConfig()['stationTemplateURLs'] as StationTemplateUrl[]);
  87     Configuration.getConfig().stationTemplateUrls.forEach((stationUrl: StationTemplateUrl) => {
  88       if (!Configuration.isUndefined(stationUrl['numberOfStation'])) {
  89         console.error(chalk`{green ${Configuration.logPrefix()}} {red Deprecated configuration key 'numberOfStation' usage for template file '${stationUrl.file}' in 'stationTemplateUrls'. Use 'numberOfStations' instead}`);
  90       }
  91     });
  92     // Read conf
  93     return Configuration.getConfig().stationTemplateUrls;
  94   }
  95
  96   static getWorkerProcess(): WorkerProcessType {
  97     Configuration.warnDeprecatedConfigurationKey('useWorkerPool;', null, 'Use \'workerProcess\' to define the type of worker process to use instead');
  98     return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'workerProcess') ? Configuration.getConfig().workerProcess : WorkerProcessType.WORKER_SET;
  99   }
 100
 101   static getWorkerStartDelay(): number {
 102     return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'workerStartDelay') ? Configuration.getConfig().workerStartDelay : Constants.WORKER_START_DELAY;
 103   }
 104
 105   static getWorkerPoolMinSize(): number {
 106     return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'workerPoolMinSize') ? Configuration.getConfig().workerPoolMinSize : Constants.DEFAULT_WORKER_POOL_MIN_SIZE;
 107   }
 108
 109   static getWorkerPoolMaxSize(): number {
 110     Configuration.warnDeprecatedConfigurationKey('workerPoolSize;', null, 'Use \'workerPoolMaxSize\' instead');
 111     return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'workerPoolMaxSize') ? Configuration.getConfig().workerPoolMaxSize : Constants.DEFAULT_WORKER_POOL_MAX_SIZE;
 112   }
 113
 114   static getWorkerPoolStrategy(): WorkerChoiceStrategy {
 115     return Configuration.getConfig().workerPoolStrategy;
 116   }
 117
 118   static getChargingStationsPerWorker(): number {
 119     return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'chargingStationsPerWorker') ? Configuration.getConfig().chargingStationsPerWorker : Constants.DEFAULT_CHARGING_STATIONS_PER_WORKER;
 120   }
 121
 122   static getLogConsole(): boolean {
 123     Configuration.warnDeprecatedConfigurationKey('consoleLog', null, 'Use \'logConsole\' instead');
 124     return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'logConsole') ? Configuration.getConfig().logConsole : false;
 125   }
 126
 127   static getLogFormat(): string {
 128     return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'logFormat') ? Configuration.getConfig().logFormat : 'simple';
 129   }
 130
 131   static getLogRotate(): boolean {
 132     return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'logRotate') ? Configuration.getConfig().logRotate : true;
 133   }
 134
 135   static getLogMaxFiles(): number {
 136     return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'logMaxFiles') ? Configuration.getConfig().logMaxFiles : 7;
 137   }
 138
 139   static getLogLevel(): string {
 140     return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'logLevel') ? Configuration.getConfig().logLevel.toLowerCase() : 'info';
 141   }
 142
 143   static getLogFile(): string {
 144     return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'logFile') ? Configuration.getConfig().logFile : 'combined.log';
 145   }
 146
 147   static getLogErrorFile(): string {
 148     Configuration.warnDeprecatedConfigurationKey('errorFile', null, 'Use \'logErrorFile\' instead');
 149     return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'logErrorFile') ? Configuration.getConfig().logErrorFile : 'error.log';
 150   }
 151
 152   static getSupervisionUrls(): string | string[] {
 153     Configuration.warnDeprecatedConfigurationKey('supervisionURLs', null, 'Use \'supervisionUrls\' instead');
 154     !Configuration.isUndefined(Configuration.getConfig()['supervisionURLs']) && (Configuration.getConfig().supervisionUrls = Configuration.getConfig()['supervisionURLs'] as string[]);
 155     // Read conf
 156     return Configuration.getConfig().supervisionUrls;
 157   }
 158
 159   static getSupervisionUrlDistribution(): SupervisionUrlDistribution {
 160     Configuration.warnDeprecatedConfigurationKey('distributeStationToTenantEqually', null, 'Use \'supervisionUrlDistribution\' instead');
 161     Configuration.warnDeprecatedConfigurationKey('distributeStationsToTenantsEqually', null, 'Use \'supervisionUrlDistribution\' instead');
 162     return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'supervisionUrlDistribution') ? Configuration.getConfig().supervisionUrlDistribution : SupervisionUrlDistribution.ROUND_ROBIN;
 163   }
 164
 165   private static logPrefix(): string {
 166     return new Date().toLocaleString() + ' Simulator configuration |';
 167   }
 168
 169   private static warnDeprecatedConfigurationKey(key: string, sectionName?: string, logMsgToAppend = '') {
 170     // eslint-disable-next-line @typescript-eslint/no-unsafe-member-access
 171     if (sectionName && !Configuration.isUndefined(Configuration.getConfig()[sectionName]) && !Configuration.isUndefined(Configuration.getConfig()[sectionName][key])) {
 172       console.error(chalk`{green ${Configuration.logPrefix()}} {red Deprecated configuration key '${key}' usage in section '${sectionName}'${logMsgToAppend && '. ' + logMsgToAppend}}`);
 173     } else if (!Configuration.isUndefined(Configuration.getConfig()[key])) {
 174       console.error(chalk`{green ${Configuration.logPrefix()}} {red Deprecated configuration key '${key}' usage${logMsgToAppend && '. ' + logMsgToAppend}}`);
 175     }
 176   }
 177
 178   // Read the config file
 179   private static getConfig(): ConfigurationData {
 180     if (!Configuration.configuration) {
 181       try {
 182         Configuration.configuration = JSON.parse(fs.readFileSync(Configuration.configurationFilePath, 'utf8')) as ConfigurationData;
 183       } catch (error) {
 184         Configuration.handleFileException(Configuration.logPrefix(), 'Configuration', Configuration.configurationFilePath, error);
 185       }
 186       if (!Configuration.configurationFileWatcher) {
 187         Configuration.configurationFileWatcher = Configuration.getConfigurationFileWatcher();
 188       }
 189     }
 190     return Configuration.configuration;
 191   }
 192
 193   private static getConfigurationFileWatcher(): fs.FSWatcher {
 194     try {
 195       return fs.watch(Configuration.configurationFilePath, (event, filename): void => {
 196         if (filename && event === 'change') {
 197           // Nullify to force configuration file reading
 198           Configuration.configuration = null;
 199           if (!Configuration.isUndefined(Configuration.configurationChangeCallback)) {
 200             Configuration.configurationChangeCallback().catch((error) => {
 201               throw typeof error === 'string' ? new Error(error) : error;
 202             });
 203           }
 204         }
 205       });
 206     } catch (error) {
 207       Configuration.handleFileException(Configuration.logPrefix(), 'Configuration', Configuration.configurationFilePath, error as Error);
 208     }
 209   }
 210
 211   private static getDefaultPerformanceStorageUri(storageType: StorageType) {
 212     const SQLiteFileName = `${Constants.DEFAULT_PERFORMANCE_RECORDS_DB_NAME}.db`;
 213     switch (storageType) {
 214       case StorageType.JSON_FILE:
 215         return `file://${path.join(path.resolve(__dirname, '../../'), Constants.DEFAULT_PERFORMANCE_RECORDS_FILENAME)}`;
 216       case StorageType.SQLITE:
 217         return `file://${path.join(path.resolve(__dirname, '../../'), SQLiteFileName)}`;
 218       default:
 219         throw new Error(`Performance storage URI is mandatory with storage type '${storageType}'`);
 220     }
 221   }
 222
 223   private static objectHasOwnProperty(object: unknown, property: string): boolean {
 224     return Object.prototype.hasOwnProperty.call(object, property) as boolean;
 225   }
 226
 227   private static isUndefined(obj: unknown): boolean {
 228     return typeof obj === 'undefined';
 229   }
 230
 231   private static handleFileException(logPrefix: string, fileType: string, filePath: string, error: NodeJS.ErrnoException): void {
 232     const prefix = logPrefix.length !== 0 ? logPrefix + ' ' : '';
 233     if (error.code === 'ENOENT') {
 234       console.error(chalk.green(prefix) + chalk.red(fileType + ' file ' + filePath + ' not found: '), error);
 235     } else if (error.code === 'EEXIST') {
 236       console.error(chalk.green(prefix) + chalk.red(fileType + ' file ' + filePath + ' already exists: '), error);
 237     } else if (error.code === 'EACCES') {
 238       console.error(chalk.green(prefix) + chalk.red(fileType + ' file ' + filePath + ' access denied: '), error);
 239     } else {
 240       console.error(chalk.green(prefix) + chalk.red(fileType + ' file ' + filePath + ' error: '), error);
 241     }
 242     throw error;
 243   }
 244 }