Fix performance storage jsonfile consistency at write:

[e-mobility-charging-stations-simulator.git] / src / charging-station / Bootstrap.ts

diff --git a/src/charging-station/Bootstrap.ts b/src/charging-station/Bootstrap.ts
index 50e861dd6ebd3754578339bf99fe283c3562f5d6..36d694e761de04b901b5c2c3353069c4bebaaf07 100644 (file)
--- a/src/charging-station/Bootstrap.ts
+++ b/src/charging-station/Bootstrap.ts
@@ -1,19 +1,33 @@
+// Partial Copyright Jerome Benoit. 2021. All Rights Reserved.
+
+import { ChargingStationWorkerData, WorkerMessage, WorkerMessageEvents } from '../types/Worker';
+
 import Configuration from '../utils/Configuration';
-import { StationWorkerData } from '../types/Worker';
+import { Storage } from '../performance/storage/Storage';
+import { StorageFactory } from '../performance/storage/StorageFactory';
 import Utils from '../utils/Utils';
+import WorkerAbstract from '../worker/WorkerAbstract';
 import WorkerFactory from '../worker/WorkerFactory';
-import Wrk from '../worker/Wrk';
+import chalk from 'chalk';
 import { isMainThread } from 'worker_threads';
+import path from 'path';
+import { version } from '../../package.json';
 
 export default class Bootstrap {
-  private static instance: Bootstrap;
-  private isStarted: boolean;
+  private static instance: Bootstrap | null = null;
+  private static workerImplementation: WorkerAbstract | null = null;
+  private static storage: Storage;
+  private static numberOfChargingStations: number;
+  private version: string = version;
+  private started: boolean;
   private workerScript: string;
-  private workerImplementation: Wrk;
 
   private constructor() {
-    this.isStarted = false;
-    this.workerScript = './dist/charging-station/StationWorker.js';
+    this.started = false;
+    this.workerScript = path.join(path.resolve(__dirname, '../'), 'charging-station', 'ChargingStationWorker.js');
+    this.initWorkerImplementation();
+    Bootstrap.storage = StorageFactory.getStorage(Configuration.getPerformanceStorage().type, Configuration.getPerformanceStorage().URI, this.logPrefix());
+    Configuration.setConfigurationChangeCallback(async () => Bootstrap.getInstance().restart());
   }
 
   public static getInstance(): Bootstrap {
@@ -24,68 +38,76 @@ export default class Bootstrap {
   }
 
   public async start(): Promise<void> {
-    if (isMainThread && !this.isStarted) {
+    if (isMainThread && !this.started) {
       try {
-        let numStationsTotal = 0;
-        await this.getWorkerImplementation().start();
+        Bootstrap.numberOfChargingStations = 0;
+        await Bootstrap.storage.open();
+        await Bootstrap.workerImplementation.start();
         // Start ChargingStation object in worker thread
         if (Configuration.getStationTemplateURLs()) {
           for (const stationURL of Configuration.getStationTemplateURLs()) {
             try {
-              const nbStations = stationURL.numberOfStations ? stationURL.numberOfStations : 0;
+              const nbStations = stationURL.numberOfStations ?? 0;
               for (let index = 1; index <= nbStations; index++) {
-                const workerData: StationWorkerData = {
+                const workerData: ChargingStationWorkerData = {
                   index,
-                  templateFile: stationURL.file
+                  templateFile: path.join(path.resolve(__dirname, '../'), 'assets', 'station-templates', path.basename(stationURL.file))
                 };
-                await this.getWorkerImplementation().addElement(workerData);
-                numStationsTotal++;
+                await Bootstrap.workerImplementation.addElement(workerData);
+                Bootstrap.numberOfChargingStations++;
               }
             } catch (error) {
-            // eslint-disable-next-line no-console
-              console.error('Charging station start with template file ' + stationURL.file + ' error ', error);
+              console.error(chalk.red('Charging station start with template file ' + stationURL.file + ' error '), error);
             }
           }
         } else {
-          console.log('No stationTemplateURLs defined in configuration, exiting');
+          console.warn(chalk.yellow('No stationTemplateURLs defined in configuration, exiting'));
         }
-        if (numStationsTotal === 0) {
-          console.log('No charging station template enabled in configuration, exiting');
+        if (Bootstrap.numberOfChargingStations === 0) {
+          console.warn(chalk.yellow('No charging station template enabled in configuration, exiting'));
         } else {
-          console.log(`Charging station simulator started with ${numStationsTotal.toString()} charging station(s) and ${Utils.workerDynamicPoolInUse() ? `${Configuration.getWorkerPoolMinSize().toString()}/` : ''}${this.getWorkerImplementation().size}${Utils.workerPoolInUse() ? `/${Configuration.getWorkerPoolMaxSize().toString()}` : ''} worker(s) concurrently running in '${Configuration.getWorkerProcess()}' mode (${this.getWorkerImplementation().maxElementsPerWorker} charging station(s) per worker)`);
+          console.log(chalk.green(`Charging stations simulator ${this.version} started with ${Bootstrap.numberOfChargingStations.toString()} charging station(s) and ${Utils.workerDynamicPoolInUse() ? `${Configuration.getWorkerPoolMinSize().toString()}/` : ''}${Bootstrap.workerImplementation.size}${Utils.workerPoolInUse() ? `/${Configuration.getWorkerPoolMaxSize().toString()}` : ''} worker(s) concurrently running in '${Configuration.getWorkerProcess()}' mode${Bootstrap.workerImplementation.maxElementsPerWorker ? ` (${Bootstrap.workerImplementation.maxElementsPerWorker} charging station(s) per worker)` : ''}`));
         }
-        this.isStarted = true;
+        this.started = true;
       } catch (error) {
-      // eslint-disable-next-line no-console
-        console.error('Bootstrap start error ', error);
+        console.error(chalk.red('Bootstrap start error '), error);
       }
     }
   }
 
   public async stop(): Promise<void> {
-    if (isMainThread && this.isStarted) {
-      await this.getWorkerImplementation().stop();
-      if (this.workerImplementation) {
-        // Nullify to force worker implementation instance creation
-        this.workerImplementation = null;
-      }
+    if (isMainThread && this.started) {
+      await Bootstrap.workerImplementation.stop();
+      await Bootstrap.storage.close();
     }
-    this.isStarted = false;
+    this.started = false;
   }
 
   public async restart(): Promise<void> {
     await this.stop();
+    this.initWorkerImplementation();
     await this.start();
   }
 
-  private getWorkerImplementation(): Wrk {
-    if (!this.workerImplementation) {
-      this.workerImplementation = WorkerFactory.getWorkerImpl<StationWorkerData>(this.workerScript, Configuration.getWorkerProcess(), {
+  private initWorkerImplementation(): void {
+    Bootstrap.workerImplementation = WorkerFactory.getWorkerImplementation<ChargingStationWorkerData>(this.workerScript, Configuration.getWorkerProcess(),
+      {
+        startDelay: Configuration.getWorkerStartDelay(),
         poolMaxSize: Configuration.getWorkerPoolMaxSize(),
         poolMinSize: Configuration.getWorkerPoolMinSize(),
-        elementsPerWorker: Configuration.getChargingStationsPerWorker()
+        elementsPerWorker: Configuration.getChargingStationsPerWorker(),
+        poolOptions: {
+          workerChoiceStrategy: Configuration.getWorkerPoolStrategy()
+        },
+        messageHandler: async (msg: WorkerMessage) => {
+          if (msg.id === WorkerMessageEvents.PERFORMANCE_STATISTICS) {
+            await Bootstrap.storage.storePerformanceStatistics(msg.data);
+          }
+        }
       });
-    }
-    return this.workerImplementation;
+  }
+
+  private logPrefix(): string {
+    return Utils.logPrefix(' Bootstrap |');
   }
 }