src/utils/Configuration.ts

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