X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=src%2Futils%2FConfiguration.ts;h=5df7bdc5521debb1091388c38620497fa1eee96b;hb=8f8f87c4fd9a0863d0aeb4a9a8671d1a2b4308e0;hp=bad98a98f96f092aa45750787096d20580a22eaf;hpb=912136b163790f70f2d82600f6782ed93bc2ba9a;p=e-mobility-charging-stations-simulator.git

diff --git a/src/utils/Configuration.ts b/src/utils/Configuration.ts
index bad98a98..25a1475b 100644
--- a/src/utils/Configuration.ts
+++ b/src/utils/Configuration.ts
@@ -1,196 +1,608 @@
-import ConfigurationData, { StationTemplateURL, StorageConfiguration } from '../types/ConfigurationData';
-
-import Constants from './Constants';
-import { StorageType } from '../types/Storage';
-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 = 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 setConfigurationChangeCallback(cb: () => Promise<void>): void {
-    Configuration.configurationChangeCallback = cb;
-  }
-
-  static getLogStatisticsInterval(): number {
-    Configuration.warnDeprecatedConfigurationKey('statisticsDisplayInterval', 'Use \'logStatisticsInterval\' instead');
-    // Read conf
-    return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'logStatisticsInterval') ? Configuration.getConfig().logStatisticsInterval : 60;
-  }
-
-  static getPerformanceStorage(): StorageConfiguration {
-    let storageConfiguration: StorageConfiguration;
-    if (Configuration.objectHasOwnProperty(Configuration.getConfig(), 'performanceStorage')) {
-      storageConfiguration =
-      {
-        ...Configuration.objectHasOwnProperty(Configuration.getConfig().performanceStorage, 'enabled') ? { enabled: Configuration.getConfig().performanceStorage.enabled } : { enabled: false },
-        ...Configuration.objectHasOwnProperty(Configuration.getConfig().performanceStorage, 'type') ? { type: Configuration.getConfig().performanceStorage.type } : { type: StorageType.JSON_FILE },
-        ...Configuration.objectHasOwnProperty(Configuration.getConfig().performanceStorage, 'URI') ? { URI: Configuration.getConfig().performanceStorage.URI } : { URI: 'file:///performanceMeasurements.json' }
-      };
-    } else {
-      storageConfiguration =
-      {
-        enabled: false,
-        type: StorageType.JSON_FILE,
-        URI: 'file:///performanceMeasurements.json'
-      };
-    }
-    return storageConfiguration;
-  }
-
-  static getAutoReconnectMaxRetries(): number {
-    Configuration.warnDeprecatedConfigurationKey('autoReconnectTimeout', 'Use \'ConnectionTimeOut\' OCPP parameter in charging station template instead');
-    Configuration.warnDeprecatedConfigurationKey('connectionTimeout', 'Use \'ConnectionTimeOut\' OCPP parameter in charging station template instead');
-    Configuration.warnDeprecatedConfigurationKey('autoReconnectMaxRetries', 'Use it in charging station template instead');
-    // Read conf
-    if (Configuration.objectHasOwnProperty(Configuration.getConfig(), 'autoReconnectMaxRetries')) {
-      return Configuration.getConfig().autoReconnectMaxRetries;
-    }
-  }
-
-  static getStationTemplateURLs(): StationTemplateURL[] {
-    Configuration.getConfig().stationTemplateURLs.forEach((stationURL: StationTemplateURL) => {
-      if (!Configuration.isUndefined(stationURL['numberOfStation'])) {
-        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;
-  }
+import { type FSWatcher, readFileSync, watch } from 'node:fs'
+import { dirname, join } from 'node:path'
+import { env } from 'node:process'
+import { fileURLToPath } from 'node:url'
 
-  static getWorkerProcess(): WorkerProcessType {
-    Configuration.warnDeprecatedConfigurationKey('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;
-  }
+import chalk from 'chalk'
+import { mergeDeepRight, once } from 'rambda'
 
-  static getWorkerStartDelay(): number {
-    return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'workerStartDelay') ? Configuration.getConfig().workerStartDelay : Constants.WORKER_START_DELAY;
-  }
+import {
+  ApplicationProtocol,
+  ApplicationProtocolVersion,
+  type ConfigurationData,
+  ConfigurationSection,
+  FileType,
+  type LogConfiguration,
+  type StationTemplateUrl,
+  type StorageConfiguration,
+  StorageType,
+  SupervisionUrlDistribution,
+  type UIServerConfiguration,
+  type WorkerConfiguration
+} from '../types/index.js'
+import {
+  DEFAULT_ELEMENT_ADD_DELAY,
+  DEFAULT_POOL_MAX_SIZE,
+  DEFAULT_POOL_MIN_SIZE,
+  DEFAULT_WORKER_START_DELAY,
+  WorkerProcessType
+} from '../worker/index.js'
+import {
+  buildPerformanceUriFilePath,
+  checkWorkerElementsPerWorker,
+  checkWorkerProcessType,
+  getDefaultPerformanceStorageUri,
+  handleFileException,
+  logPrefix
+} from './ConfigurationUtils.js'
+import { Constants } from './Constants.js'
+import { hasOwnProp, isCFEnvironment } from './Utils.js'
+
+type ConfigurationSectionType =
+  | LogConfiguration
+  | StorageConfiguration
+  | WorkerConfiguration
+  | UIServerConfiguration
+
+// eslint-disable-next-line @typescript-eslint/no-extraneous-class
+export class Configuration {
+  public static configurationChangeCallback?: () => Promise<void>
 
-  static getWorkerPoolMinSize(): number {
-    return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'workerPoolMinSize') ? Configuration.getConfig().workerPoolMinSize : Constants.DEFAULT_WORKER_POOL_MIN_SIZE;
+  private static readonly configurationFile = join(
+    dirname(fileURLToPath(import.meta.url)),
+    'assets',
+    'config.json'
+  )
+
+  private static configurationFileReloading = false
+  private static configurationData?: ConfigurationData
+  private static configurationFileWatcher?: FSWatcher
+  private static readonly configurationSectionCache = new Map<
+  ConfigurationSection,
+  ConfigurationSectionType
+  >([
+    [ConfigurationSection.log, Configuration.buildLogSection()],
+    [ConfigurationSection.performanceStorage, Configuration.buildPerformanceStorageSection()],
+    [ConfigurationSection.worker, Configuration.buildWorkerSection()],
+    [ConfigurationSection.uiServer, Configuration.buildUIServerSection()]
+  ])
+
+  private constructor () {
+    // This is intentional
   }
 
-  static getWorkerPoolMaxSize(): number {
-    Configuration.warnDeprecatedConfigurationKey('workerPoolSize;', 'Use \'workerPoolMaxSize\' instead');
-    return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'workerPoolMaxSize') ? Configuration.getConfig().workerPoolMaxSize : Constants.DEFAULT_WORKER_POOL_MAX_SIZE;
+  public static getConfigurationSection<T extends ConfigurationSectionType>(
+    sectionName: ConfigurationSection
+  ): T {
+    if (!Configuration.isConfigurationSectionCached(sectionName)) {
+      Configuration.cacheConfigurationSection(sectionName)
+    }
+    return Configuration.configurationSectionCache.get(sectionName) as T
   }
 
-  static getWorkerPoolStrategy(): WorkerChoiceStrategy {
-    return Configuration.getConfig().workerPoolStrategy;
+  public static getStationTemplateUrls (): StationTemplateUrl[] | undefined {
+    const checkDeprecatedConfigurationKeysOnce = once(
+      Configuration.checkDeprecatedConfigurationKeys.bind(Configuration)
+    )
+    checkDeprecatedConfigurationKeysOnce()
+    return Configuration.getConfigurationData()?.stationTemplateUrls
   }
 
-  static getChargingStationsPerWorker(): number {
-    return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'chargingStationsPerWorker') ? Configuration.getConfig().chargingStationsPerWorker : Constants.DEFAULT_CHARGING_STATIONS_PER_WORKER;
+  public static getSupervisionUrls (): string | string[] | undefined {
+    if (
+      Configuration.getConfigurationData()?.['supervisionURLs' as keyof ConfigurationData] != null
+    ) {
+      // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+      Configuration.getConfigurationData()!.supervisionUrls = Configuration.getConfigurationData()![
+        'supervisionURLs' as keyof ConfigurationData
+      ] as string | string[]
+    }
+    return Configuration.getConfigurationData()?.supervisionUrls
   }
 
-  static getLogConsole(): boolean {
-    Configuration.warnDeprecatedConfigurationKey('consoleLog', 'Use \'logConsole\' instead');
-    return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'logConsole') ? Configuration.getConfig().logConsole : false;
+  public static getSupervisionUrlDistribution (): SupervisionUrlDistribution | undefined {
+    return hasOwnProp(Configuration.getConfigurationData(), 'supervisionUrlDistribution')
+      ? Configuration.getConfigurationData()?.supervisionUrlDistribution
+      : SupervisionUrlDistribution.ROUND_ROBIN
   }
 
-  static getLogFormat(): string {
-    return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'logFormat') ? Configuration.getConfig().logFormat : 'simple';
+  public static workerPoolInUse (): boolean {
+    return [WorkerProcessType.dynamicPool, WorkerProcessType.fixedPool].includes(
+      // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+      Configuration.getConfigurationSection<WorkerConfiguration>(ConfigurationSection.worker)
+        .processType!
+    )
   }
 
-  static getLogRotate(): boolean {
-    return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'logRotate') ? Configuration.getConfig().logRotate : true;
+  public static workerDynamicPoolInUse (): boolean {
+    return (
+      Configuration.getConfigurationSection<WorkerConfiguration>(ConfigurationSection.worker)
+        .processType === WorkerProcessType.dynamicPool
+    )
   }
 
-  static getLogMaxFiles(): number {
-    return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'logMaxFiles') ? Configuration.getConfig().logMaxFiles : 7;
+  private static isConfigurationSectionCached (sectionName: ConfigurationSection): boolean {
+    return Configuration.configurationSectionCache.has(sectionName)
   }
 
-  static getLogLevel(): string {
-    return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'logLevel') ? Configuration.getConfig().logLevel : 'info';
+  private static cacheConfigurationSection (sectionName: ConfigurationSection): void {
+    switch (sectionName) {
+      case ConfigurationSection.log:
+        Configuration.configurationSectionCache.set(sectionName, Configuration.buildLogSection())
+        break
+      case ConfigurationSection.performanceStorage:
+        Configuration.configurationSectionCache.set(
+          sectionName,
+          Configuration.buildPerformanceStorageSection()
+        )
+        break
+      case ConfigurationSection.worker:
+        Configuration.configurationSectionCache.set(sectionName, Configuration.buildWorkerSection())
+        break
+      case ConfigurationSection.uiServer:
+        Configuration.configurationSectionCache.set(
+          sectionName,
+          Configuration.buildUIServerSection()
+        )
+        break
+      default:
+        // eslint-disable-next-line @typescript-eslint/restrict-template-expressions
+        throw new Error(`Unknown configuration section '${sectionName}'`)
+    }
   }
 
-  static getLogFile(): string {
-    return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'logFile') ? Configuration.getConfig().logFile : 'combined.log';
+  private static buildUIServerSection (): UIServerConfiguration {
+    let uiServerConfiguration: UIServerConfiguration = {
+      enabled: false,
+      type: ApplicationProtocol.WS,
+      version: ApplicationProtocolVersion.VERSION_11,
+      options: {
+        host: Constants.DEFAULT_UI_SERVER_HOST,
+        port: Constants.DEFAULT_UI_SERVER_PORT
+      }
+    }
+    if (hasOwnProp(Configuration.getConfigurationData(), ConfigurationSection.uiServer)) {
+      uiServerConfiguration = mergeDeepRight(
+        uiServerConfiguration,
+        // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+        Configuration.getConfigurationData()!.uiServer!
+      )
+    }
+    if (isCFEnvironment()) {
+      delete uiServerConfiguration.options?.host
+      // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+      uiServerConfiguration.options!.port = parseInt(env.PORT!)
+    }
+    return uiServerConfiguration
   }
 
-  static getLogErrorFile(): string {
-    Configuration.warnDeprecatedConfigurationKey('errorFile', 'Use \'logErrorFile\' instead');
-    return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'logErrorFile') ? Configuration.getConfig().logErrorFile : 'error.log';
+  private static buildPerformanceStorageSection (): StorageConfiguration {
+    let storageConfiguration: StorageConfiguration
+    switch (Configuration.getConfigurationData()?.performanceStorage?.type) {
+      case StorageType.SQLITE:
+        storageConfiguration = {
+          enabled: false,
+          type: StorageType.SQLITE,
+          uri: getDefaultPerformanceStorageUri(StorageType.SQLITE)
+        }
+        break
+      case StorageType.JSON_FILE:
+        storageConfiguration = {
+          enabled: false,
+          type: StorageType.JSON_FILE,
+          uri: getDefaultPerformanceStorageUri(StorageType.JSON_FILE)
+        }
+        break
+      case StorageType.NONE:
+      default:
+        storageConfiguration = {
+          enabled: true,
+          type: StorageType.NONE
+        }
+        break
+    }
+    if (hasOwnProp(Configuration.getConfigurationData(), ConfigurationSection.performanceStorage)) {
+      storageConfiguration = {
+        ...storageConfiguration,
+        ...Configuration.getConfigurationData()?.performanceStorage,
+        ...((Configuration.getConfigurationData()?.performanceStorage?.type ===
+          StorageType.JSON_FILE ||
+          Configuration.getConfigurationData()?.performanceStorage?.type === StorageType.SQLITE) &&
+          Configuration.getConfigurationData()?.performanceStorage?.uri != null && {
+          uri: buildPerformanceUriFilePath(
+            // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+            new URL(Configuration.getConfigurationData()!.performanceStorage!.uri!).pathname
+          )
+        })
+      }
+    }
+    return storageConfiguration
   }
 
-  static getSupervisionURLs(): string[] {
-    // Read conf
-    return Configuration.getConfig().supervisionURLs;
+  private static buildLogSection (): LogConfiguration {
+    const defaultLogConfiguration: LogConfiguration = {
+      enabled: true,
+      file: 'logs/combined.log',
+      errorFile: 'logs/error.log',
+      statisticsInterval: Constants.DEFAULT_LOG_STATISTICS_INTERVAL,
+      level: 'info',
+      format: 'simple',
+      rotate: true
+    }
+    const deprecatedLogConfiguration: LogConfiguration = {
+      ...(hasOwnProp(Configuration.getConfigurationData(), 'logEnabled') && {
+        enabled: Configuration.getConfigurationData()?.logEnabled
+      }),
+      ...(hasOwnProp(Configuration.getConfigurationData(), 'logFile') && {
+        file: Configuration.getConfigurationData()?.logFile
+      }),
+      ...(hasOwnProp(Configuration.getConfigurationData(), 'logErrorFile') && {
+        errorFile: Configuration.getConfigurationData()?.logErrorFile
+      }),
+      ...(hasOwnProp(Configuration.getConfigurationData(), 'logStatisticsInterval') && {
+        statisticsInterval: Configuration.getConfigurationData()?.logStatisticsInterval
+      }),
+      ...(hasOwnProp(Configuration.getConfigurationData(), 'logLevel') && {
+        level: Configuration.getConfigurationData()?.logLevel
+      }),
+      ...(hasOwnProp(Configuration.getConfigurationData(), 'logConsole') && {
+        console: Configuration.getConfigurationData()?.logConsole
+      }),
+      ...(hasOwnProp(Configuration.getConfigurationData(), 'logFormat') && {
+        format: Configuration.getConfigurationData()?.logFormat
+      }),
+      ...(hasOwnProp(Configuration.getConfigurationData(), 'logRotate') && {
+        rotate: Configuration.getConfigurationData()?.logRotate
+      }),
+      ...(hasOwnProp(Configuration.getConfigurationData(), 'logMaxFiles') && {
+        maxFiles: Configuration.getConfigurationData()?.logMaxFiles
+      }),
+      ...(hasOwnProp(Configuration.getConfigurationData(), 'logMaxSize') && {
+        maxSize: Configuration.getConfigurationData()?.logMaxSize
+      })
+    }
+    const logConfiguration: LogConfiguration = {
+      ...defaultLogConfiguration,
+      ...deprecatedLogConfiguration,
+      ...(hasOwnProp(Configuration.getConfigurationData(), ConfigurationSection.log) &&
+        Configuration.getConfigurationData()?.log)
+    }
+    return logConfiguration
   }
 
-  static getDistributeStationsToTenantsEqually(): boolean {
-    Configuration.warnDeprecatedConfigurationKey('distributeStationToTenantEqually', 'Use \'distributeStationsToTenantsEqually\' instead');
-    return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'distributeStationsToTenantsEqually') ? Configuration.getConfig().distributeStationsToTenantsEqually : true;
+  private static buildWorkerSection (): WorkerConfiguration {
+    const defaultWorkerConfiguration: WorkerConfiguration = {
+      processType: WorkerProcessType.workerSet,
+      startDelay: DEFAULT_WORKER_START_DELAY,
+      elementsPerWorker: 'auto',
+      elementAddDelay: DEFAULT_ELEMENT_ADD_DELAY,
+      poolMinSize: DEFAULT_POOL_MIN_SIZE,
+      poolMaxSize: DEFAULT_POOL_MAX_SIZE
+    }
+
+    const deprecatedWorkerConfiguration: WorkerConfiguration = {
+      ...(hasOwnProp(Configuration.getConfigurationData(), 'workerProcess') && {
+        processType: Configuration.getConfigurationData()?.workerProcess
+      }),
+      ...(hasOwnProp(Configuration.getConfigurationData(), 'workerStartDelay') && {
+        startDelay: Configuration.getConfigurationData()?.workerStartDelay
+      }),
+      ...(hasOwnProp(Configuration.getConfigurationData(), 'chargingStationsPerWorker') && {
+        elementsPerWorker: Configuration.getConfigurationData()?.chargingStationsPerWorker
+      }),
+      ...(hasOwnProp(Configuration.getConfigurationData(), 'elementAddDelay') && {
+        elementAddDelay: Configuration.getConfigurationData()?.elementAddDelay
+      }),
+      ...(hasOwnProp(Configuration.getConfigurationData()?.worker, 'elementStartDelay') && {
+        elementAddDelay: Configuration.getConfigurationData()?.worker?.elementStartDelay
+      }),
+      ...(hasOwnProp(Configuration.getConfigurationData(), 'workerPoolMinSize') && {
+        poolMinSize: Configuration.getConfigurationData()?.workerPoolMinSize
+      }),
+      ...(hasOwnProp(Configuration.getConfigurationData(), 'workerPoolMaxSize') && {
+        poolMaxSize: Configuration.getConfigurationData()?.workerPoolMaxSize
+      })
+    }
+    hasOwnProp(Configuration.getConfigurationData(), 'workerPoolStrategy') &&
+      delete Configuration.getConfigurationData()?.workerPoolStrategy
+    const workerConfiguration: WorkerConfiguration = {
+      ...defaultWorkerConfiguration,
+      ...deprecatedWorkerConfiguration,
+      ...(hasOwnProp(Configuration.getConfigurationData(), ConfigurationSection.worker) &&
+        Configuration.getConfigurationData()?.worker)
+    }
+    // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+    checkWorkerProcessType(workerConfiguration.processType!)
+    checkWorkerElementsPerWorker(workerConfiguration.elementsPerWorker)
+    return workerConfiguration
   }
 
-  private static logPrefix(): string {
-    return new Date().toLocaleString() + ' Simulator configuration |';
+  private static checkDeprecatedConfigurationKeys (): void {
+    // connection timeout
+    Configuration.warnDeprecatedConfigurationKey(
+      'autoReconnectTimeout',
+      undefined,
+      "Use 'ConnectionTimeOut' OCPP parameter in charging station template instead"
+    )
+    Configuration.warnDeprecatedConfigurationKey(
+      'connectionTimeout',
+      undefined,
+      "Use 'ConnectionTimeOut' OCPP parameter in charging station template instead"
+    )
+    // connection retries
+    Configuration.warnDeprecatedConfigurationKey(
+      'autoReconnectMaxRetries',
+      undefined,
+      'Use it in charging station template instead'
+    )
+    // station template url(s)
+    Configuration.warnDeprecatedConfigurationKey(
+      'stationTemplateURLs',
+      undefined,
+      "Use 'stationTemplateUrls' instead"
+    )
+    Configuration.getConfigurationData()?.['stationTemplateURLs' as keyof ConfigurationData] !=
+      null &&
+      // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+      (Configuration.getConfigurationData()!.stationTemplateUrls =
+        // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+        Configuration.getConfigurationData()![
+          'stationTemplateURLs' as keyof ConfigurationData
+        ] as StationTemplateUrl[])
+    Configuration.getConfigurationData()?.stationTemplateUrls.forEach(
+      (stationTemplateUrl: StationTemplateUrl) => {
+        // eslint-disable-next-line @typescript-eslint/no-unnecessary-condition
+        if (stationTemplateUrl['numberOfStation' as keyof StationTemplateUrl] != null) {
+          console.error(
+            `${chalk.green(logPrefix())} ${chalk.red(
+              `Deprecated configuration key 'numberOfStation' usage for template file '${stationTemplateUrl.file}' in 'stationTemplateUrls'. Use 'numberOfStations' instead`
+            )}`
+          )
+        }
+      }
+    )
+    // supervision url(s)
+    Configuration.warnDeprecatedConfigurationKey(
+      'supervisionURLs',
+      undefined,
+      "Use 'supervisionUrls' instead"
+    )
+    // supervision urls distribution
+    Configuration.warnDeprecatedConfigurationKey(
+      'distributeStationToTenantEqually',
+      undefined,
+      "Use 'supervisionUrlDistribution' instead"
+    )
+    Configuration.warnDeprecatedConfigurationKey(
+      'distributeStationsToTenantsEqually',
+      undefined,
+      "Use 'supervisionUrlDistribution' instead"
+    )
+    // worker section
+    Configuration.warnDeprecatedConfigurationKey(
+      'useWorkerPool',
+      undefined,
+      `Use '${ConfigurationSection.worker}' section to define the type of worker process model instead`
+    )
+    Configuration.warnDeprecatedConfigurationKey(
+      'workerProcess',
+      undefined,
+      `Use '${ConfigurationSection.worker}' section to define the type of worker process model instead`
+    )
+    Configuration.warnDeprecatedConfigurationKey(
+      'workerStartDelay',
+      undefined,
+      `Use '${ConfigurationSection.worker}' section to define the worker start delay instead`
+    )
+    Configuration.warnDeprecatedConfigurationKey(
+      'chargingStationsPerWorker',
+      undefined,
+      `Use '${ConfigurationSection.worker}' section to define the number of element(s) per worker instead`
+    )
+    Configuration.warnDeprecatedConfigurationKey(
+      'elementAddDelay',
+      undefined,
+      `Use '${ConfigurationSection.worker}' section to define the worker's element add delay instead`
+    )
+    Configuration.warnDeprecatedConfigurationKey(
+      'workerPoolMinSize',
+      undefined,
+      `Use '${ConfigurationSection.worker}' section to define the worker pool minimum size instead`
+    )
+    Configuration.warnDeprecatedConfigurationKey(
+      'workerPoolSize',
+      undefined,
+      `Use '${ConfigurationSection.worker}' section to define the worker pool maximum size instead`
+    )
+    Configuration.warnDeprecatedConfigurationKey(
+      'workerPoolMaxSize',
+      undefined,
+      `Use '${ConfigurationSection.worker}' section to define the worker pool maximum size instead`
+    )
+    Configuration.warnDeprecatedConfigurationKey(
+      'workerPoolStrategy',
+      undefined,
+      `Use '${ConfigurationSection.worker}' section to define the worker pool strategy instead`
+    )
+    Configuration.warnDeprecatedConfigurationKey(
+      'poolStrategy',
+      ConfigurationSection.worker,
+      'Not publicly exposed to end users'
+    )
+    Configuration.warnDeprecatedConfigurationKey(
+      'elementStartDelay',
+      ConfigurationSection.worker,
+      "Use 'elementAddDelay' instead"
+    )
+    if (
+      Configuration.getConfigurationData()?.worker?.processType ===
+      ('staticPool' as WorkerProcessType)
+    ) {
+      console.error(
+        `${chalk.green(logPrefix())} ${chalk.red(
+          `Deprecated configuration 'staticPool' value usage in worker section 'processType' field. Use '${WorkerProcessType.fixedPool}' value instead`
+        )}`
+      )
+    }
+    // log section
+    Configuration.warnDeprecatedConfigurationKey(
+      'logEnabled',
+      undefined,
+      `Use '${ConfigurationSection.log}' section to define the logging enablement instead`
+    )
+    Configuration.warnDeprecatedConfigurationKey(
+      'logFile',
+      undefined,
+      `Use '${ConfigurationSection.log}' section to define the log file instead`
+    )
+    Configuration.warnDeprecatedConfigurationKey(
+      'logErrorFile',
+      undefined,
+      `Use '${ConfigurationSection.log}' section to define the log error file instead`
+    )
+    Configuration.warnDeprecatedConfigurationKey(
+      'logConsole',
+      undefined,
+      `Use '${ConfigurationSection.log}' section to define the console logging enablement instead`
+    )
+    Configuration.warnDeprecatedConfigurationKey(
+      'logStatisticsInterval',
+      undefined,
+      `Use '${ConfigurationSection.log}' section to define the log statistics interval instead`
+    )
+    Configuration.warnDeprecatedConfigurationKey(
+      'logLevel',
+      undefined,
+      `Use '${ConfigurationSection.log}' section to define the log level instead`
+    )
+    Configuration.warnDeprecatedConfigurationKey(
+      'logFormat',
+      undefined,
+      `Use '${ConfigurationSection.log}' section to define the log format instead`
+    )
+    Configuration.warnDeprecatedConfigurationKey(
+      'logRotate',
+      undefined,
+      `Use '${ConfigurationSection.log}' section to define the log rotation enablement instead`
+    )
+    Configuration.warnDeprecatedConfigurationKey(
+      'logMaxFiles',
+      undefined,
+      `Use '${ConfigurationSection.log}' section to define the log maximum files instead`
+    )
+    Configuration.warnDeprecatedConfigurationKey(
+      'logMaxSize',
+      undefined,
+      `Use '${ConfigurationSection.log}' section to define the log maximum size instead`
+    )
+    // performanceStorage section
+    Configuration.warnDeprecatedConfigurationKey(
+      'URI',
+      ConfigurationSection.performanceStorage,
+      "Use 'uri' instead"
+    )
+    // uiServer section
+    if (hasOwnProp(Configuration.getConfigurationData(), 'uiWebSocketServer')) {
+      console.error(
+        `${chalk.green(logPrefix())} ${chalk.red(
+          `Deprecated configuration section 'uiWebSocketServer' usage. Use '${ConfigurationSection.uiServer}' instead`
+        )}`
+      )
+    }
   }
 
-  private static warnDeprecatedConfigurationKey(key: string, sectionName?: string, logMsgToAppend = '') {
-    // eslint-disable-next-line @typescript-eslint/no-unsafe-member-access
-    if (sectionName && !Configuration.isUndefined(Configuration.getConfig()[sectionName]) && !Configuration.isUndefined(Configuration.getConfig()[sectionName][key])) {
-      console.error(`${Configuration.logPrefix()} Deprecated configuration key '${key}' usage in section '${sectionName}'${logMsgToAppend && '. ' + logMsgToAppend}`);
-    } else if (!Configuration.isUndefined(Configuration.getConfig()[key])) {
-      console.error(`${Configuration.logPrefix()} Deprecated configuration key '${key}' usage${logMsgToAppend && '. ' + logMsgToAppend}`);
+  private static warnDeprecatedConfigurationKey (
+    key: string,
+    configurationSection?: ConfigurationSection,
+    logMsgToAppend = ''
+  ): void {
+    if (
+      configurationSection != null &&
+      Configuration.getConfigurationData()?.[configurationSection as keyof ConfigurationData] !=
+        null &&
+      (
+        Configuration.getConfigurationData()?.[
+          configurationSection as keyof ConfigurationData
+        ] as Record<string, unknown>
+      )[key] != null
+    ) {
+      console.error(
+        `${chalk.green(logPrefix())} ${chalk.red(
+          `Deprecated configuration key '${key}' usage in section '${configurationSection}'${
+            logMsgToAppend.trim().length > 0 ? `. ${logMsgToAppend}` : ''
+          }`
+        )}`
+      )
+    } else if (Configuration.getConfigurationData()?.[key as keyof ConfigurationData] != null) {
+      console.error(
+        `${chalk.green(logPrefix())} ${chalk.red(
+          `Deprecated configuration key '${key}' usage${
+            logMsgToAppend.trim().length > 0 ? `. ${logMsgToAppend}` : ''
+          }`
+        )}`
+      )
     }
   }
 
-  // Read the config file
-  private static getConfig(): ConfigurationData {
-    if (!Configuration.configuration) {
+  public static getConfigurationData (): ConfigurationData | undefined {
+    if (Configuration.configurationData == null) {
       try {
-        Configuration.configuration = JSON.parse(fs.readFileSync(Configuration.configurationFilePath, 'utf8')) as ConfigurationData;
+        Configuration.configurationData = JSON.parse(
+          readFileSync(Configuration.configurationFile, 'utf8')
+        ) as ConfigurationData
+        if (Configuration.configurationFileWatcher == null) {
+          Configuration.configurationFileWatcher = Configuration.getConfigurationFileWatcher()
+        }
       } catch (error) {
-        Configuration.handleFileException(Configuration.logPrefix(), 'Configuration', Configuration.configurationFilePath, error);
-      }
-      if (!Configuration.configurationFileWatcher) {
-        Configuration.configurationFileWatcher = Configuration.getConfigurationFileWatcher();
+        handleFileException(
+          Configuration.configurationFile,
+          FileType.Configuration,
+          error as NodeJS.ErrnoException,
+          logPrefix()
+        )
       }
     }
-    return Configuration.configuration;
+    return Configuration.configurationData
   }
 
-  private static getConfigurationFileWatcher(): fs.FSWatcher {
+  private static getConfigurationFileWatcher (): FSWatcher | undefined {
     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();
+      return watch(Configuration.configurationFile, (event, filename): void => {
+        if (
+          !Configuration.configurationFileReloading &&
+          // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+          filename!.trim().length > 0 &&
+          event === 'change'
+        ) {
+          Configuration.configurationFileReloading = true
+          const consoleWarnOnce = once(console.warn)
+          consoleWarnOnce(
+            `${chalk.green(logPrefix())} ${chalk.yellow(
+              `${FileType.Configuration} ${this.configurationFile} file have changed, reload`
+            )}`
+          )
+          delete Configuration.configurationData
+          Configuration.configurationSectionCache.clear()
+          if (Configuration.configurationChangeCallback != null) {
+            Configuration.configurationChangeCallback()
+              .catch((error: unknown) => {
+                throw typeof error === 'string' ? new Error(error) : error
+              })
+              .finally(() => {
+                Configuration.configurationFileReloading = false
+              })
+          } else {
+            Configuration.configurationFileReloading = false
+          }
         }
-      });
+      })
     } 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;
-  }
-
-  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 if (error.code === 'EEXIST') {
-      console.error(prefix + fileType + ' file ' + filePath + ' already exists: ', error);
-    } else if (error.code === 'EACCES') {
-      console.error(prefix + fileType + ' file ' + filePath + ' access denied: ', error);
-    } else {
-      console.error(prefix + fileType + ' file ' + filePath + ' error: ', error);
+      handleFileException(
+        Configuration.configurationFile,
+        FileType.Configuration,
+        error as NodeJS.ErrnoException,
+        logPrefix()
+      )
     }
-    throw error;
   }
 }