Fix exit conditions at startup

[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 0fa2c88d35c868650e76fa059a86f75d96c54b7e..80e14d151bef4897d4f4ec541e967529572d2003 100644 (file)
--- a/src/charging-station/Bootstrap.ts
+++ b/src/charging-station/Bootstrap.ts
@@ -7,17 +7,21 @@ import { isMainThread } from 'worker_threads';
 import chalk from 'chalk';
 
 import { version } from '../../package.json';
+import BaseError from '../exception/BaseError';
 import { Storage } from '../performance/storage/Storage';
 import { StorageFactory } from '../performance/storage/StorageFactory';
 import {
+  ChargingStationData,
   ChargingStationWorkerData,
   ChargingStationWorkerMessage,
+  ChargingStationWorkerMessageData,
   ChargingStationWorkerMessageEvents,
 } from '../types/ChargingStationWorker';
 import { StationTemplateUrl } from '../types/ConfigurationData';
 import Statistics from '../types/Statistics';
 import { ApplicationProtocol } from '../types/UIProtocol';
 import Configuration from '../utils/Configuration';
+import logger from '../utils/Logger';
 import Utils from '../utils/Utils';
 import WorkerAbstract from '../worker/WorkerAbstract';
 import WorkerFactory from '../worker/WorkerFactory';
@@ -26,6 +30,11 @@ import { AbstractUIServer } from './ui-server/AbstractUIServer';
 import { UIServiceUtils } from './ui-server/ui-services/UIServiceUtils';
 import UIServerFactory from './ui-server/UIServerFactory';
 
+const moduleName = 'Bootstrap';
+
+const missingChargingStationsConfigurationExitCode = 1;
+const noChargingStationTemplatesExitCode = 2;
+
 export default class Bootstrap {
   private static instance: Bootstrap | null = null;
   private workerImplementation: WorkerAbstract<ChargingStationWorkerData> | null = null;
@@ -33,6 +42,7 @@ export default class Bootstrap {
   private readonly storage!: Storage;
   private numberOfChargingStationTemplates!: number;
   private numberOfChargingStations!: number;
+  private numberOfStartedChargingStations!: number;
   private readonly version: string = version;
   private started: boolean;
   private readonly workerScript: string;
@@ -98,13 +108,15 @@ export default class Bootstrap {
           console.warn(
             chalk.yellow("'stationTemplateUrls' not defined or empty in configuration, exiting")
           );
+          process.exit(missingChargingStationsConfigurationExitCode);
         }
         if (this.numberOfChargingStations === 0) {
           console.warn(
             chalk.yellow('No charging station template enabled in configuration, exiting')
           );
+          process.exit(noChargingStationTemplatesExitCode);
         } else {
-          console.log(
+          console.info(
             chalk.green(
               `Charging stations simulator ${
                 this.version
@@ -165,22 +177,74 @@ export default class Bootstrap {
           poolOptions: {
             workerChoiceStrategy: Configuration.getWorker().poolStrategy,
           },
-          messageHandler: async (msg: ChargingStationWorkerMessage) => {
-            if (msg.id === ChargingStationWorkerMessageEvents.STARTED) {
-              this.uiServer.chargingStations.add(msg.data.id as string);
-            } else if (msg.id === ChargingStationWorkerMessageEvents.STOPPED) {
-              this.uiServer.chargingStations.delete(msg.data.id as string);
-            } else if (msg.id === ChargingStationWorkerMessageEvents.PERFORMANCE_STATISTICS) {
-              await this.storage.storePerformanceStatistics(msg.data as unknown as Statistics);
-            }
-          },
+          messageHandler: this.messageHandler.bind(this) as (
+            msg: ChargingStationWorkerMessage<ChargingStationWorkerMessageData>
+          ) => void,
         }
       ));
   }
 
+  private messageHandler(
+    msg: ChargingStationWorkerMessage<ChargingStationWorkerMessageData>
+  ): void {
+    // logger.debug(
+    //   `${this.logPrefix()} ${moduleName}.messageHandler: Worker channel message received: ${JSON.stringify(
+    //     msg,
+    //     null,
+    //     2
+    //   )}`
+    // );
+    try {
+      switch (msg.id) {
+        case ChargingStationWorkerMessageEvents.STARTED:
+          this.workerEventStarted(msg.data as ChargingStationData);
+          break;
+        case ChargingStationWorkerMessageEvents.STOPPED:
+          this.workerEventStopped(msg.data as ChargingStationData);
+          break;
+        case ChargingStationWorkerMessageEvents.UPDATED:
+          this.workerEventUpdated(msg.data as ChargingStationData);
+          break;
+        case ChargingStationWorkerMessageEvents.PERFORMANCE_STATISTICS:
+          this.workerEventPerformanceStatistics(msg.data as Statistics);
+          break;
+        default:
+          throw new BaseError(
+            `Unknown event type: '${msg.id}' for data: ${JSON.stringify(msg.data, null, 2)}`
+          );
+      }
+    } catch (error) {
+      logger.error(
+        `${this.logPrefix()} ${moduleName}.messageHandler: Error occurred while handling '${
+          msg.id
+        }' event:`,
+        error
+      );
+    }
+  }
+
+  private workerEventStarted(data: ChargingStationData) {
+    this.uiServer?.chargingStations.set(data.hashId, data);
+    ++this.numberOfStartedChargingStations;
+  }
+
+  private workerEventStopped(data: ChargingStationData) {
+    this.uiServer?.chargingStations.set(data.hashId, data);
+    --this.numberOfStartedChargingStations;
+  }
+
+  private workerEventUpdated(data: ChargingStationData) {
+    this.uiServer?.chargingStations.set(data.hashId, data);
+  }
+
+  private workerEventPerformanceStatistics = (data: Statistics) => {
+    this.storage.storePerformanceStatistics(data) as void;
+  };
+
   private initialize() {
-    this.numberOfChargingStations = 0;
     this.numberOfChargingStationTemplates = 0;
+    this.numberOfChargingStations = 0;
+    this.numberOfStartedChargingStations = 0;
     this.initializeWorkerImplementation();
   }
 
@@ -198,7 +262,7 @@ export default class Bootstrap {
       ),
     };
     await this.workerImplementation.addElement(workerData);
-    this.numberOfChargingStations++;
+    ++this.numberOfChargingStations;
   }
 
   private logPrefix(): string {