README.md: document added UI protocol features

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

diff --git a/src/charging-station/WorkerBroadcastChannel.ts b/src/charging-station/WorkerBroadcastChannel.ts
index 12a877c12add623365c0c8c6c6068c62841000d2..b19bf946dc633db77e5c690e75dd4b921de6868a 100644 (file)
--- a/src/charging-station/WorkerBroadcastChannel.ts
+++ b/src/charging-station/WorkerBroadcastChannel.ts
@@ -1,6 +1,12 @@
 import { BroadcastChannel } from 'worker_threads';
 
-import { BroadcastChannelRequest, BroadcastChannelResponse } from '../types/WorkerBroadcastChannel';
+import BaseError from '../exception/BaseError';
+import type { JsonType } from '../types/JsonType';
+import type {
+  BroadcastChannelRequest,
+  BroadcastChannelResponse,
+  MessageEvent,
+} from '../types/WorkerBroadcastChannel';
 
 export default abstract class WorkerBroadcastChannel extends BroadcastChannel {
   protected constructor() {
@@ -15,11 +21,17 @@ export default abstract class WorkerBroadcastChannel extends BroadcastChannel {
     this.postMessage(response);
   }
 
-  protected isRequest(message: any): boolean {
+  protected isRequest(message: JsonType[]): boolean {
     return Array.isArray(message) && message.length === 3;
   }
 
-  protected isResponse(message: any): boolean {
+  protected isResponse(message: JsonType[]): boolean {
     return Array.isArray(message) && message.length === 2;
   }
+
+  protected validateMessageEvent(messageEvent: MessageEvent): void {
+    if (Array.isArray(messageEvent.data) === false) {
+      throw new BaseError('Worker broadcast channel protocol message event data is not an array');
+    }
+  }
 }