X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=src%2Futils%2FConfiguration.ts;h=5df7bdc5521debb1091388c38620497fa1eee96b;hb=8f8f87c4fd9a0863d0aeb4a9a8671d1a2b4308e0;hp=f4eb39ad62ae287667e82355255a9f30ca2dbca4;hpb=1f7fa4de53a1b28324f362402f61b81b28d75c2c;p=e-mobility-charging-stations-simulator.git

diff --git a/src/utils/Configuration.ts b/src/utils/Configuration.ts
index f4eb39ad..25a1475b 100644
--- a/src/utils/Configuration.ts
+++ b/src/utils/Configuration.ts
@@ -1,461 +1,608 @@
-import fs from 'fs';
-import path from 'path';
-import { fileURLToPath } from 'url';
-
-import chalk from 'chalk';
-
-import ConfigurationData, {
-  StationTemplateUrl,
-  StorageConfiguration,
+import { type FSWatcher, readFileSync, watch } from 'node:fs'
+import { dirname, join } from 'node:path'
+import { env } from 'node:process'
+import { fileURLToPath } from 'node:url'
+
+import chalk from 'chalk'
+import { mergeDeepRight, once } from 'rambda'
+
+import {
+  ApplicationProtocol,
+  ApplicationProtocolVersion,
+  type ConfigurationData,
+  ConfigurationSection,
+  FileType,
+  type LogConfiguration,
+  type StationTemplateUrl,
+  type StorageConfiguration,
+  StorageType,
   SupervisionUrlDistribution,
-  UIServerConfiguration,
-  WorkerConfiguration,
-} from '../types/ConfigurationData';
-import { EmptyObject } from '../types/EmptyObject';
-import { HandleErrorParams } from '../types/Error';
-import { FileType } from '../types/FileType';
-import { StorageType } from '../types/Storage';
-import { ApplicationProtocol } from '../types/UIProtocol';
-import { WorkerProcessType } from '../types/Worker';
-import WorkerConstants from '../worker/WorkerConstants';
-import Constants from './Constants';
-
-export default class Configuration {
-  private static configurationFile = path.join(
-    path.resolve(path.dirname(fileURLToPath(import.meta.url)), '../'),
+  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>
+
+  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
+  }
 
-  private static configurationFileWatcher: fs.FSWatcher;
-  private static configuration: ConfigurationData | null = null;
-  private static configurationChangeCallback: () => Promise<void>;
+  public static getConfigurationSection<T extends ConfigurationSectionType>(
+    sectionName: ConfigurationSection
+  ): T {
+    if (!Configuration.isConfigurationSectionCached(sectionName)) {
+      Configuration.cacheConfigurationSection(sectionName)
+    }
+    return Configuration.configurationSectionCache.get(sectionName) as T
+  }
 
-  private constructor() {
-    // This is intentional
+  public static getStationTemplateUrls (): StationTemplateUrl[] | undefined {
+    const checkDeprecatedConfigurationKeysOnce = once(
+      Configuration.checkDeprecatedConfigurationKeys.bind(Configuration)
+    )
+    checkDeprecatedConfigurationKeysOnce()
+    return Configuration.getConfigurationData()?.stationTemplateUrls
   }
 
-  static setConfigurationChangeCallback(cb: () => Promise<void>): void {
-    Configuration.configurationChangeCallback = cb;
+  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 getLogStatisticsInterval(): number {
-    Configuration.warnDeprecatedConfigurationKey(
-      'statisticsDisplayInterval',
-      null,
-      "Use 'logStatisticsInterval' instead"
-    );
-    // Read conf
-    return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'logStatisticsInterval')
-      ? Configuration.getConfig().logStatisticsInterval
-      : Constants.DEFAULT_LOG_STATISTICS_INTERVAL;
+  public static getSupervisionUrlDistribution (): SupervisionUrlDistribution | undefined {
+    return hasOwnProp(Configuration.getConfigurationData(), 'supervisionUrlDistribution')
+      ? Configuration.getConfigurationData()?.supervisionUrlDistribution
+      : SupervisionUrlDistribution.ROUND_ROBIN
   }
 
-  static getUIServer(): UIServerConfiguration {
-    if (Configuration.objectHasOwnProperty(Configuration.getConfig(), 'uiWebSocketServer')) {
-      console.error(
-        chalk`{green ${Configuration.logPrefix()}} {red Deprecated configuration section 'uiWebSocketServer' usage. Use 'uiServer' instead}`
-      );
+  public static workerPoolInUse (): boolean {
+    return [WorkerProcessType.dynamicPool, WorkerProcessType.fixedPool].includes(
+      // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+      Configuration.getConfigurationSection<WorkerConfiguration>(ConfigurationSection.worker)
+        .processType!
+    )
+  }
+
+  public static workerDynamicPoolInUse (): boolean {
+    return (
+      Configuration.getConfigurationSection<WorkerConfiguration>(ConfigurationSection.worker)
+        .processType === WorkerProcessType.dynamicPool
+    )
+  }
+
+  private static isConfigurationSectionCached (sectionName: ConfigurationSection): boolean {
+    return Configuration.configurationSectionCache.has(sectionName)
+  }
+
+  private static cacheConfigurationSection (sectionName: ConfigurationSection): void {
+    switch (sectionName) {
+      case ConfigurationSection.log:
+        Configuration.configurationSectionCache.set(sectionName, Configuration.buildLogSection())
+        break
+      case ConfigurationSection.performanceStorage:
+        Configuration.configurationSectionCache.set(
+          sectionName,
+          Configuration.buildPerformanceStorageSection()
+        )
+        break
+      case ConfigurationSection.worker:
+        Configuration.configurationSectionCache.set(sectionName, Configuration.buildWorkerSection())
+        break
+      case ConfigurationSection.uiServer:
+        Configuration.configurationSectionCache.set(
+          sectionName,
+          Configuration.buildUIServerSection()
+        )
+        break
+      default:
+        // eslint-disable-next-line @typescript-eslint/restrict-template-expressions
+        throw new Error(`Unknown configuration section '${sectionName}'`)
     }
+  }
+
+  private static buildUIServerSection (): UIServerConfiguration {
     let uiServerConfiguration: UIServerConfiguration = {
-      enabled: true,
+      enabled: false,
       type: ApplicationProtocol.WS,
+      version: ApplicationProtocolVersion.VERSION_11,
       options: {
-        host: Constants.DEFAULT_UI_WEBSOCKET_SERVER_HOST,
-        port: Constants.DEFAULT_UI_WEBSOCKET_SERVER_PORT,
-      },
-    };
-    if (Configuration.objectHasOwnProperty(Configuration.getConfig(), 'uiServer')) {
-      uiServerConfiguration = Configuration.deepMerge(
+        host: Constants.DEFAULT_UI_SERVER_HOST,
+        port: Constants.DEFAULT_UI_SERVER_PORT
+      }
+    }
+    if (hasOwnProp(Configuration.getConfigurationData(), ConfigurationSection.uiServer)) {
+      uiServerConfiguration = mergeDeepRight(
         uiServerConfiguration,
-        Configuration.getConfig().uiServer
-      );
+        // 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;
+    return uiServerConfiguration
   }
 
-  static getPerformanceStorage(): StorageConfiguration {
-    Configuration.warnDeprecatedConfigurationKey('URI', 'performanceStorage', "Use 'uri' instead");
-    let storageConfiguration: StorageConfiguration = {
-      enabled: false,
-      type: StorageType.JSON_FILE,
-      uri: this.getDefaultPerformanceStorageUri(StorageType.JSON_FILE),
-    };
-    if (Configuration.objectHasOwnProperty(Configuration.getConfig(), 'performanceStorage')) {
+  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.getConfig().performanceStorage,
-      };
+        ...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
+  }
+
+  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 storageConfiguration;
+    return logConfiguration
   }
 
-  static getAutoReconnectMaxRetries(): number {
+  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 checkDeprecatedConfigurationKeys (): void {
+    // connection timeout
     Configuration.warnDeprecatedConfigurationKey(
       'autoReconnectTimeout',
-      null,
+      undefined,
       "Use 'ConnectionTimeOut' OCPP parameter in charging station template instead"
-    );
+    )
     Configuration.warnDeprecatedConfigurationKey(
       'connectionTimeout',
-      null,
+      undefined,
       "Use 'ConnectionTimeOut' OCPP parameter in charging station template instead"
-    );
+    )
+    // connection retries
     Configuration.warnDeprecatedConfigurationKey(
       'autoReconnectMaxRetries',
-      null,
+      undefined,
       'Use it in charging station template instead'
-    );
-    // Read conf
-    if (Configuration.objectHasOwnProperty(Configuration.getConfig(), 'autoReconnectMaxRetries')) {
-      return Configuration.getConfig().autoReconnectMaxRetries;
-    }
-  }
-
-  static getStationTemplateUrls(): StationTemplateUrl[] {
+    )
+    // station template url(s)
     Configuration.warnDeprecatedConfigurationKey(
       'stationTemplateURLs',
-      null,
+      undefined,
       "Use 'stationTemplateUrls' instead"
-    );
-    !Configuration.isUndefined(Configuration.getConfig()['stationTemplateURLs']) &&
-      (Configuration.getConfig().stationTemplateUrls = Configuration.getConfig()[
-        'stationTemplateURLs'
-      ] as StationTemplateUrl[]);
-    Configuration.getConfig().stationTemplateUrls.forEach((stationUrl: StationTemplateUrl) => {
-      if (!Configuration.isUndefined(stationUrl['numberOfStation'])) {
-        console.error(
-          chalk`{green ${Configuration.logPrefix()}} {red Deprecated configuration key 'numberOfStation' usage for template file '${
-            stationUrl.file
-          }' in 'stationTemplateUrls'. Use 'numberOfStations' 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`
+            )}`
+          )
+        }
       }
-    });
-    // Read conf
-    return Configuration.getConfig().stationTemplateUrls;
-  }
-
-  static getWorker(): WorkerConfiguration {
+    )
+    // 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',
-      null,
-      "Use 'worker' section to define the type of worker process model instead"
-    );
+      undefined,
+      `Use '${ConfigurationSection.worker}' section to define the type of worker process model instead`
+    )
     Configuration.warnDeprecatedConfigurationKey(
       'workerProcess',
-      null,
-      "Use 'worker' section to define the type of worker process model instead"
-    );
+      undefined,
+      `Use '${ConfigurationSection.worker}' section to define the type of worker process model instead`
+    )
     Configuration.warnDeprecatedConfigurationKey(
       'workerStartDelay',
-      null,
-      "Use 'worker' section to define the worker start delay instead"
-    );
+      undefined,
+      `Use '${ConfigurationSection.worker}' section to define the worker start delay instead`
+    )
     Configuration.warnDeprecatedConfigurationKey(
       'chargingStationsPerWorker',
-      null,
-      "Use 'worker' section to define the number of element(s) per worker instead"
-    );
+      undefined,
+      `Use '${ConfigurationSection.worker}' section to define the number of element(s) per worker instead`
+    )
     Configuration.warnDeprecatedConfigurationKey(
-      'elementStartDelay',
-      null,
-      "Use 'worker' section to define the worker's element start delay instead"
-    );
+      'elementAddDelay',
+      undefined,
+      `Use '${ConfigurationSection.worker}' section to define the worker's element add delay instead`
+    )
     Configuration.warnDeprecatedConfigurationKey(
       'workerPoolMinSize',
-      null,
-      "Use 'worker' section to define the worker pool minimum size instead"
-    );
+      undefined,
+      `Use '${ConfigurationSection.worker}' section to define the worker pool minimum size instead`
+    )
     Configuration.warnDeprecatedConfigurationKey(
-      'workerPoolSize;',
-      null,
-      "Use 'worker' section to define the worker pool maximum size instead"
-    );
+      'workerPoolSize',
+      undefined,
+      `Use '${ConfigurationSection.worker}' section to define the worker pool maximum size instead`
+    )
     Configuration.warnDeprecatedConfigurationKey(
-      'workerPoolMaxSize;',
-      null,
-      "Use 'worker' section to define the worker pool maximum size instead"
-    );
+      'workerPoolMaxSize',
+      undefined,
+      `Use '${ConfigurationSection.worker}' section to define the worker pool maximum size instead`
+    )
     Configuration.warnDeprecatedConfigurationKey(
-      'workerPoolStrategy;',
-      null,
-      "Use 'worker' section to define the worker pool strategy instead"
-    );
-    let workerConfiguration: WorkerConfiguration = {
-      processType: Configuration.objectHasOwnProperty(Configuration.getConfig(), 'workerProcess')
-        ? Configuration.getConfig().workerProcess
-        : WorkerProcessType.WORKER_SET,
-      startDelay: Configuration.objectHasOwnProperty(Configuration.getConfig(), 'workerStartDelay')
-        ? Configuration.getConfig().workerStartDelay
-        : WorkerConstants.DEFAULT_WORKER_START_DELAY,
-      elementsPerWorker: Configuration.objectHasOwnProperty(
-        Configuration.getConfig(),
-        'chargingStationsPerWorker'
-      )
-        ? Configuration.getConfig().chargingStationsPerWorker
-        : WorkerConstants.DEFAULT_ELEMENTS_PER_WORKER,
-      elementStartDelay: Configuration.objectHasOwnProperty(
-        Configuration.getConfig(),
-        'elementStartDelay'
-      )
-        ? Configuration.getConfig().elementStartDelay
-        : WorkerConstants.DEFAULT_ELEMENT_START_DELAY,
-      poolMinSize: Configuration.objectHasOwnProperty(
-        Configuration.getConfig(),
-        'workerPoolMinSize'
-      )
-        ? Configuration.getConfig().workerPoolMinSize
-        : WorkerConstants.DEFAULT_POOL_MIN_SIZE,
-      poolMaxSize: Configuration.objectHasOwnProperty(
-        Configuration.getConfig(),
-        'workerPoolMaxSize'
+      '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`
+        )}`
       )
-        ? Configuration.getConfig().workerPoolMaxSize
-        : WorkerConstants.DEFAULT_POOL_MAX_SIZE,
-      poolStrategy: Configuration.getConfig().workerPoolStrategy,
-    };
-    if (Configuration.objectHasOwnProperty(Configuration.getConfig(), 'worker')) {
-      workerConfiguration = { ...workerConfiguration, ...Configuration.getConfig().worker };
     }
-    return workerConfiguration;
-  }
-
-  static getLogConsole(): boolean {
-    Configuration.warnDeprecatedConfigurationKey('consoleLog', null, "Use 'logConsole' instead");
-    return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'logConsole')
-      ? Configuration.getConfig().logConsole
-      : false;
-  }
-
-  static getLogFormat(): string {
-    return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'logFormat')
-      ? Configuration.getConfig().logFormat
-      : 'simple';
-  }
-
-  static getLogRotate(): boolean {
-    return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'logRotate')
-      ? Configuration.getConfig().logRotate
-      : true;
-  }
-
-  static getLogMaxFiles(): number {
-    return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'logMaxFiles')
-      ? Configuration.getConfig().logMaxFiles
-      : 7;
-  }
-
-  static getLogLevel(): string {
-    return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'logLevel')
-      ? Configuration.getConfig().logLevel.toLowerCase()
-      : 'info';
-  }
-
-  static getLogFile(): string {
-    return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'logFile')
-      ? Configuration.getConfig().logFile
-      : 'combined.log';
-  }
-
-  static getLogErrorFile(): string {
-    Configuration.warnDeprecatedConfigurationKey('errorFile', null, "Use 'logErrorFile' instead");
-    return Configuration.objectHasOwnProperty(Configuration.getConfig(), 'logErrorFile')
-      ? Configuration.getConfig().logErrorFile
-      : 'error.log';
-  }
-
-  static getSupervisionUrls(): string | string[] {
+    // log section
     Configuration.warnDeprecatedConfigurationKey(
-      'supervisionURLs',
-      null,
-      "Use 'supervisionUrls' instead"
-    );
-    !Configuration.isUndefined(Configuration.getConfig()['supervisionURLs']) &&
-      (Configuration.getConfig().supervisionUrls = Configuration.getConfig()[
-        'supervisionURLs'
-      ] as string[]);
-    // Read conf
-    return Configuration.getConfig().supervisionUrls;
-  }
-
-  static getSupervisionUrlDistribution(): SupervisionUrlDistribution {
+      'logEnabled',
+      undefined,
+      `Use '${ConfigurationSection.log}' section to define the logging enablement instead`
+    )
     Configuration.warnDeprecatedConfigurationKey(
-      'distributeStationToTenantEqually',
-      null,
-      "Use 'supervisionUrlDistribution' instead"
-    );
+      'logFile',
+      undefined,
+      `Use '${ConfigurationSection.log}' section to define the log file instead`
+    )
     Configuration.warnDeprecatedConfigurationKey(
-      'distributeStationsToTenantsEqually',
-      null,
-      "Use 'supervisionUrlDistribution' instead"
-    );
-    return Configuration.objectHasOwnProperty(
-      Configuration.getConfig(),
-      'supervisionUrlDistribution'
+      'logErrorFile',
+      undefined,
+      `Use '${ConfigurationSection.log}' section to define the log error file instead`
     )
-      ? Configuration.getConfig().supervisionUrlDistribution
-      : SupervisionUrlDistribution.ROUND_ROBIN;
-  }
-
-  private static logPrefix(): string {
-    return new Date().toLocaleString() + ' Simulator configuration |';
+    Configuration.warnDeprecatedConfigurationKey(
+      'logConsole',
+      undefined,
+      `Use '${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(
+  private static warnDeprecatedConfigurationKey (
     key: string,
-    sectionName?: string,
+    configurationSection?: ConfigurationSection,
     logMsgToAppend = ''
-  ) {
+  ): void {
     if (
-      sectionName &&
-      !Configuration.isUndefined(Configuration.getConfig()[sectionName]) &&
-      !Configuration.isUndefined(
-        (Configuration.getConfig()[sectionName] as Record<string, unknown>)[key]
-      )
+      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 ${Configuration.logPrefix()}} {red Deprecated configuration key '${key}' usage in section '${sectionName}'${
-          logMsgToAppend && '. ' + logMsgToAppend
-        }}`
-      );
-    } else if (!Configuration.isUndefined(Configuration.getConfig()[key])) {
+        `${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 ${Configuration.logPrefix()}} {red Deprecated configuration key '${key}' usage${
-          logMsgToAppend && '. ' + logMsgToAppend
-        }}`
-      );
+        `${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.configurationFile, '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(),
-          FileType.Configuration,
+        handleFileException(
           Configuration.configurationFile,
-          error as NodeJS.ErrnoException
-        );
-      }
-      if (!Configuration.configurationFileWatcher) {
-        Configuration.configurationFileWatcher = Configuration.getConfigurationFileWatcher();
+          FileType.Configuration,
+          error as NodeJS.ErrnoException,
+          logPrefix()
+        )
       }
     }
-    return Configuration.configuration;
+    return Configuration.configurationData
   }
 
-  private static getConfigurationFileWatcher(): fs.FSWatcher {
+  private static getConfigurationFileWatcher (): FSWatcher | undefined {
     try {
-      return fs.watch(Configuration.configurationFile, (event, filename): void => {
-        if (filename && event === 'change') {
-          // Nullify to force configuration file reading
-          Configuration.configuration = null;
-          if (!Configuration.isUndefined(Configuration.configurationChangeCallback)) {
-            Configuration.configurationChangeCallback().catch((error) => {
-              throw typeof error === 'string' ? new Error(error) : error;
-            });
+      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} ${this.configurationFile} file have changed, reload`
+            )}`
+          )
+          delete Configuration.configurationData
+          Configuration.configurationSectionCache.clear()
+          if (Configuration.configurationChangeCallback != null) {
+            Configuration.configurationChangeCallback()
+              .catch((error: unknown) => {
+                throw typeof error === 'string' ? new Error(error) : error
+              })
+              .finally(() => {
+                Configuration.configurationFileReloading = false
+              })
+          } else {
+            Configuration.configurationFileReloading = false
           }
         }
-      });
+      })
     } catch (error) {
-      Configuration.handleFileException(
-        Configuration.logPrefix(),
-        FileType.Configuration,
+      handleFileException(
         Configuration.configurationFile,
-        error as NodeJS.ErrnoException
-      );
-    }
-  }
-
-  private static getDefaultPerformanceStorageUri(storageType: StorageType) {
-    const SQLiteFileName = `${Constants.DEFAULT_PERFORMANCE_RECORDS_DB_NAME}.db`;
-    switch (storageType) {
-      case StorageType.JSON_FILE:
-        return `file://${path.join(
-          path.resolve(path.dirname(fileURLToPath(import.meta.url)), '../../'),
-          Constants.DEFAULT_PERFORMANCE_RECORDS_FILENAME
-        )}`;
-      case StorageType.SQLITE:
-        return `file://${path.join(
-          path.resolve(path.dirname(fileURLToPath(import.meta.url)), '../../'),
-          SQLiteFileName
-        )}`;
-      default:
-        throw new Error(`Performance storage URI is mandatory with storage type '${storageType}'`);
-    }
-  }
-
-  private static isObject(item): boolean {
-    return item && typeof item === 'object' && Array.isArray(item) === false;
-  }
-
-  private static deepMerge(target: object, ...sources: object[]): object {
-    if (!sources.length) {
-      return target;
-    }
-    const source = sources.shift();
-
-    if (Configuration.isObject(target) && Configuration.isObject(source)) {
-      for (const key in source) {
-        if (Configuration.isObject(source[key])) {
-          if (!target[key]) {
-            Object.assign(target, { [key]: {} });
-          }
-          // eslint-disable-next-line @typescript-eslint/no-unsafe-argument
-          Configuration.deepMerge(target[key], source[key]);
-        } else {
-          // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
-          Object.assign(target, { [key]: source[key] });
-        }
-      }
-    }
-    return Configuration.deepMerge(target, ...sources);
-  }
-
-  private static objectHasOwnProperty(object: unknown, property: string): boolean {
-    return Object.prototype.hasOwnProperty.call(object, property) as boolean;
-  }
-
-  private static isUndefined(obj: unknown): boolean {
-    return typeof obj === 'undefined';
-  }
-
-  private static handleFileException(
-    logPrefix: string,
-    fileType: FileType,
-    filePath: string,
-    error: NodeJS.ErrnoException,
-    params: HandleErrorParams<EmptyObject> = { throwError: true }
-  ): void {
-    const prefix = logPrefix.length !== 0 ? logPrefix + ' ' : '';
-    if (error.code === 'ENOENT') {
-      console.error(
-        chalk.green(prefix) + chalk.red(fileType + ' file ' + filePath + ' not found: '),
-        error
-      );
-    } else if (error.code === 'EEXIST') {
-      console.error(
-        chalk.green(prefix) + chalk.red(fileType + ' file ' + filePath + ' already exists: '),
-        error
-      );
-    } else if (error.code === 'EACCES') {
-      console.error(
-        chalk.green(prefix) + chalk.red(fileType + ' file ' + filePath + ' access denied: '),
-        error
-      );
-    } else {
-      console.error(
-        chalk.green(prefix) + chalk.red(fileType + ' file ' + filePath + ' error: '),
-        error
-      );
-    }
-    if (params?.throwError) {
-      throw error;
+        FileType.Configuration,
+        error as NodeJS.ErrnoException,
+        logPrefix()
+      )
     }
   }
 }