Release 1.0.32

[e-mobility-charging-stations-simulator.git] / src / utils / Configuration.ts

diff --git a/src/utils/Configuration.ts b/src/utils/Configuration.ts
index ca98427eb87cee39c22c6a720e5998599e2fbabb..a65e6c995b999d3e62527fc7b5e09d98fd5b6b6b 100644 (file)
--- a/src/utils/Configuration.ts
+++ b/src/utils/Configuration.ts
@@ -1,25 +1,29 @@
 import ConfigurationData, { StationTemplateURL } from '../types/ConfigurationData';
 
+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 configuration: ConfigurationData;
+  private static configurationFilePath = path.join(path.resolve(__dirname, '../'), 'assets', 'config.json');
+  private static configurationFileWatcher: fs.FSWatcher;
+  private static configuration: ConfigurationData | null = null;
+  private static configurationChangeCallback: () => Promise<void>;
 
-  static getStatisticsDisplayInterval(): number {
-    // Read conf
-    return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'statisticsDisplayInterval') ? Configuration.getConfig().statisticsDisplayInterval : 60;
+  static setConfigurationChangeCallback(cb: () => Promise<void>): void {
+    Configuration.configurationChangeCallback = cb;
   }
 
-  static getConnectionTimeout(): number {
-    Configuration.deprecateConfigurationKey('autoReconnectTimeout', 'Use \'connectionTimeout\' in charging station instead');
-    Configuration.deprecateConfigurationKey('connectionTimeout', 'Use it in charging station template instead');
+  static getStatisticsDisplayInterval(): number {
     // Read conf
-    if (Configuration.objectHasOwnProperty(Configuration.getConfig(), 'connectionTimeout')) {
-      return Configuration.getConfig().connectionTimeout;
-    }
+    return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'statisticsDisplayInterval') ? Configuration.getConfig().statisticsDisplayInterval : 60;
   }
 
   static getAutoReconnectMaxRetries(): number {
+    Configuration.deprecateConfigurationKey('autoReconnectTimeout', 'Use \'ConnectionTimeOut\' OCPP parameter in charging station template instead');
+    Configuration.deprecateConfigurationKey('connectionTimeout', 'Use \'ConnectionTimeOut\' OCPP parameter in charging station template instead');
     Configuration.deprecateConfigurationKey('autoReconnectMaxRetries', 'Use it in charging station template instead');
     // Read conf
     if (Configuration.objectHasOwnProperty(Configuration.getConfig(), 'autoReconnectMaxRetries')) {
@@ -30,19 +34,37 @@ export default class Configuration {
   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.getConfig().stationTemplateURLs;
   }
 
-  static useWorkerPool(): boolean {
-    return Configuration.getConfig().useWorkerPool;
+  static getWorkerProcess(): WorkerProcessType {
+    Configuration.deprecateConfigurationKey('useWorkerPool;', 'Use \'workerProcess\' to define the type of worker process to use instead');
+    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 : Constants.DEFAULT_WORKER_POOL_MIN_SIZE;
+  }
+
+  static getWorkerPoolMaxSize(): number {
+    Configuration.deprecateConfigurationKey('workerPoolSize;', 'Use \'workerPoolMaxSize\' instead');
+    return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'workerPoolMaxSize') ? Configuration.getConfig().workerPoolMaxSize : Constants.DEFAULT_WORKER_POOL_MAX_SIZE;
   }
 
-  static getWorkerPoolSize(): number {
-    return Configuration.getConfig().workerPoolSize;
+  static getWorkerPoolStrategy(): WorkerChoiceStrategy {
+    return Configuration.getConfig().workerPoolStrategy;
+  }
+
+  static getChargingStationsPerWorker(): number {
+    return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'chargingStationsPerWorker') ? Configuration.getConfig().chargingStationsPerWorker : Constants.DEFAULT_CHARGING_STATIONS_PER_WORKER;
   }
 
   static getLogConsole(): boolean {
@@ -85,20 +107,46 @@ export default class Configuration {
     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('./src/assets/config.json', '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();
+      }
     }
     return Configuration.configuration;
   }
 
+  private static getConfigurationFileWatcher(): fs.FSWatcher {
+    try {
+      // eslint-disable-next-line @typescript-eslint/no-misused-promises
+      return fs.watch(Configuration.configurationFilePath).on('change', async (): 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 {
     return Object.prototype.hasOwnProperty.call(object, property) as boolean;
   }
@@ -106,4 +154,14 @@ export default class Configuration {
   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;
+  }
 }