X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=src%2Fcharging-station%2FBootstrap.ts;h=88b4b4c42c973193231aa5d9d4af582dd2f61b18;hb=8b7072dca602c80ec6ef9a3463b6d53b43aa8fa5;hp=6dc6620d71dd4fed3f834dca67b53ebba6e68e18;hpb=976d11ec6d2d38a5a82440de79f059638e28cdbd;p=e-mobility-charging-stations-simulator.git

diff --git a/src/charging-station/Bootstrap.ts b/src/charging-station/Bootstrap.ts
index 6dc6620d..88b4b4c4 100644
--- a/src/charging-station/Bootstrap.ts
+++ b/src/charging-station/Bootstrap.ts
@@ -1,44 +1,47 @@
-// Partial Copyright Jerome Benoit. 2021. All Rights Reserved.
+// Partial Copyright Jerome Benoit. 2021-2023. All Rights Reserved.
 
-import path from 'path';
-import { fileURLToPath } from 'url';
-import { isMainThread } from 'worker_threads';
+import path from 'node:path';
+import { fileURLToPath } from 'node:url';
+import { type Worker, isMainThread } from 'worker_threads';
 
 import chalk from 'chalk';
 
+import { ChargingStationUtils } from './ChargingStationUtils';
+import type { AbstractUIServer } from './ui-server/AbstractUIServer';
+import UIServerFactory from './ui-server/UIServerFactory';
 import { version } from '../../package.json';
 import BaseError from '../exception/BaseError';
 import type { Storage } from '../performance/storage/Storage';
 import { StorageFactory } from '../performance/storage/StorageFactory';
 import {
-  ChargingStationData,
-  ChargingStationWorkerData,
-  ChargingStationWorkerMessage,
-  ChargingStationWorkerMessageData,
+  type ChargingStationData,
+  type ChargingStationWorkerData,
+  type ChargingStationWorkerMessage,
+  type ChargingStationWorkerMessageData,
   ChargingStationWorkerMessageEvents,
 } from '../types/ChargingStationWorker';
 import type { StationTemplateUrl } from '../types/ConfigurationData';
-import type Statistics from '../types/Statistics';
+import type { Statistics } from '../types/Statistics';
+import type { MessageHandler } from '../types/Worker';
 import Configuration from '../utils/Configuration';
 import logger from '../utils/Logger';
 import Utils from '../utils/Utils';
 import type WorkerAbstract from '../worker/WorkerAbstract';
 import WorkerFactory from '../worker/WorkerFactory';
-import { ChargingStationUtils } from './ChargingStationUtils';
-import type { AbstractUIServer } from './ui-server/AbstractUIServer';
-import UIServerFactory from './ui-server/UIServerFactory';
 
 const moduleName = 'Bootstrap';
 
-const missingChargingStationsConfigurationExitCode = 1;
-const noChargingStationTemplatesExitCode = 2;
+enum exitCodes {
+  missingChargingStationsConfiguration = 1,
+  noChargingStationTemplates = 2,
+}
 
 export class Bootstrap {
   private static instance: Bootstrap | null = null;
-  private workerImplementation: WorkerAbstract<ChargingStationWorkerData> | null = null;
-  private readonly uiServer!: AbstractUIServer;
+  private workerImplementation: WorkerAbstract<ChargingStationWorkerData> | null;
+  private readonly uiServer!: AbstractUIServer | null;
   private readonly storage!: Storage;
-  private numberOfChargingStationTemplates!: number;
+  private numberOfChargingStationTemplates!: number | undefined;
   private numberOfChargingStations!: number;
   private numberOfStartedChargingStations!: number;
   private readonly version: string = version;
@@ -47,10 +50,11 @@ export class Bootstrap {
 
   private constructor() {
     this.started = false;
+    this.workerImplementation = null;
     this.workerScript = path.join(
       path.resolve(path.dirname(fileURLToPath(import.meta.url)), '../'),
       'charging-station',
-      'ChargingStationWorker' + path.extname(fileURLToPath(import.meta.url))
+      `ChargingStationWorker${path.extname(fileURLToPath(import.meta.url))}`
     );
     this.initialize();
     Configuration.getUIServer().enabled === true &&
@@ -74,12 +78,15 @@ export class Bootstrap {
   public async start(): Promise<void> {
     if (isMainThread && this.started === false) {
       try {
+        // Enable unconditionally for now
+        this.logUnhandledRejection();
+        this.logUncaughtException();
         this.initialize();
         await this.storage?.open();
-        await this.workerImplementation.start();
+        await this.workerImplementation?.start();
         this.uiServer?.start();
         const stationTemplateUrls = Configuration.getStationTemplateUrls();
-        this.numberOfChargingStationTemplates = stationTemplateUrls.length;
+        this.numberOfChargingStationTemplates = stationTemplateUrls?.length;
         // Start ChargingStation object in worker thread
         if (!Utils.isEmptyArray(stationTemplateUrls)) {
           for (const stationTemplateUrl of stationTemplateUrls) {
@@ -91,9 +98,7 @@ export class Bootstrap {
             } catch (error) {
               console.error(
                 chalk.red(
-                  'Error at starting charging station with template file ' +
-                    stationTemplateUrl.file +
-                    ': '
+                  `Error at starting charging station with template file ${stationTemplateUrl.file}: `
                 ),
                 error
               );
@@ -103,13 +108,13 @@ export class Bootstrap {
           console.warn(
             chalk.yellow("'stationTemplateUrls' not defined or empty in configuration, exiting")
           );
-          process.exit(missingChargingStationsConfigurationExitCode);
+          process.exit(exitCodes.missingChargingStationsConfiguration);
         }
         if (this.numberOfChargingStations === 0) {
           console.warn(
             chalk.yellow('No charging station template enabled in configuration, exiting')
           );
-          process.exit(noChargingStationTemplatesExitCode);
+          process.exit(exitCodes.noChargingStationTemplates);
         } else {
           console.info(
             chalk.green(
@@ -117,15 +122,15 @@ export class Bootstrap {
                 this.version
               } started with ${this.numberOfChargingStations.toString()} charging station(s) from ${this.numberOfChargingStationTemplates.toString()} configured charging station template(s) and ${
                 ChargingStationUtils.workerDynamicPoolInUse()
-                  ? `${Configuration.getWorker().poolMinSize.toString()}/`
+                  ? `${Configuration.getWorker().poolMinSize?.toString()}/`
                   : ''
-              }${this.workerImplementation.size}${
+              }${this.workerImplementation?.size}${
                 ChargingStationUtils.workerPoolInUse()
-                  ? `/${Configuration.getWorker().poolMaxSize.toString()}`
+                  ? `/${Configuration.getWorker().poolMaxSize?.toString()}`
                   : ''
               } worker(s) concurrently running in '${Configuration.getWorker().processType}' mode${
-                this.workerImplementation.maxElementsPerWorker
-                  ? ` (${this.workerImplementation.maxElementsPerWorker} charging station(s) per worker)`
+                !Utils.isNullOrUndefined(this.workerImplementation?.maxElementsPerWorker)
+                  ? ` (${this.workerImplementation?.maxElementsPerWorker} charging station(s) per worker)`
                   : ''
               }`
             )
@@ -142,14 +147,14 @@ export class Bootstrap {
 
   public async stop(): Promise<void> {
     if (isMainThread && this.started === true) {
-      await this.workerImplementation.stop();
+      await this.workerImplementation?.stop();
       this.workerImplementation = null;
       this.uiServer?.stop();
       await this.storage?.close();
+      this.started = false;
     } else {
-      console.error(chalk.red('Trying to stop the charging stations simulator while not started'));
+      console.error(chalk.red('Cannot stop a not started charging stations simulator'));
     }
-    this.started = false;
   }
 
   public async restart(): Promise<void> {
@@ -159,7 +164,7 @@ export class Bootstrap {
   }
 
   private initializeWorkerImplementation(): void {
-    !this.workerImplementation &&
+    this.workerImplementation === null &&
       (this.workerImplementation = WorkerFactory.getWorkerImplementation<ChargingStationWorkerData>(
         this.workerScript,
         Configuration.getWorker().processType,
@@ -172,9 +177,7 @@ export class Bootstrap {
           poolOptions: {
             workerChoiceStrategy: Configuration.getWorker().poolStrategy,
           },
-          messageHandler: this.messageHandler.bind(this) as (
-            msg: ChargingStationWorkerMessage<ChargingStationWorkerMessageData>
-          ) => void,
+          messageHandler: this.messageHandler.bind(this) as MessageHandler<Worker>,
         }
       ));
   }
@@ -218,19 +221,33 @@ export class Bootstrap {
     }
   }
 
-  private workerEventStarted(data: ChargingStationData) {
+  private workerEventStarted = (data: ChargingStationData) => {
     this.uiServer?.chargingStations.set(data.stationInfo.hashId, data);
     ++this.numberOfStartedChargingStations;
-  }
+    logger.info(
+      `${this.logPrefix()} ${moduleName}.workerEventStarted: Charging station ${
+        data.stationInfo.chargingStationId
+      } (hashId: ${data.stationInfo.hashId}) started (${
+        this.numberOfStartedChargingStations
+      } started from ${this.numberOfChargingStations})`
+    );
+  };
 
-  private workerEventStopped(data: ChargingStationData) {
+  private workerEventStopped = (data: ChargingStationData) => {
     this.uiServer?.chargingStations.set(data.stationInfo.hashId, data);
     --this.numberOfStartedChargingStations;
-  }
+    logger.info(
+      `${this.logPrefix()} ${moduleName}.workerEventStopped: Charging station ${
+        data.stationInfo.chargingStationId
+      } (hashId: ${data.stationInfo.hashId}) stopped (${
+        this.numberOfStartedChargingStations
+      } started from ${this.numberOfChargingStations})`
+    );
+  };
 
-  private workerEventUpdated(data: ChargingStationData) {
+  private workerEventUpdated = (data: ChargingStationData) => {
     this.uiServer?.chargingStations.set(data.stationInfo.hashId, data);
-  }
+  };
 
   private workerEventPerformanceStatistics = (data: Statistics) => {
     this.storage.storePerformanceStatistics(data) as void;
@@ -243,6 +260,18 @@ export class Bootstrap {
     this.initializeWorkerImplementation();
   }
 
+  private logUncaughtException(): void {
+    process.on('uncaughtException', (error: Error) => {
+      console.error(chalk.red('Uncaught exception: '), error);
+    });
+  }
+
+  private logUnhandledRejection(): void {
+    process.on('unhandledRejection', (reason: unknown) => {
+      console.error(chalk.red('Unhandled rejection: '), reason);
+    });
+  }
+
   private async startChargingStation(
     index: number,
     stationTemplateUrl: StationTemplateUrl
@@ -256,11 +285,11 @@ export class Bootstrap {
         stationTemplateUrl.file
       ),
     };
-    await this.workerImplementation.addElement(workerData);
+    await this.workerImplementation?.addElement(workerData);
     ++this.numberOfChargingStations;
   }
 
-  private logPrefix(): string {
+  private logPrefix = (): string => {
     return Utils.logPrefix(' Bootstrap |');
-  }
+  };
 }