feat: restart worker on uncaught exception

[e-mobility-charging-stations-simulator.git] / src / worker / WorkerAbstract.ts

diff --git a/src/worker/WorkerAbstract.ts b/src/worker/WorkerAbstract.ts
index 0fccdb812d7ed4c2a40b28596a3cfc883ed606e3..7753e64d392f8f960f24f6b41c29340e0e71f79b 100644 (file)
--- a/src/worker/WorkerAbstract.ts
+++ b/src/worker/WorkerAbstract.ts
@@ -1,13 +1,13 @@
-import fs from 'fs';
+import fs from 'node:fs';
 
-import WorkerConstants from './WorkerConstants';
-import type { WorkerData, WorkerOptions } from '../types/Worker';
+import { WorkerConstants } from './WorkerConstants';
+import type { WorkerData, WorkerOptions } from './WorkerTypes';
 
-export default abstract class WorkerAbstract<T extends WorkerData> {
+export abstract class WorkerAbstract<T extends WorkerData> {
   protected readonly workerScript: string;
   protected readonly workerOptions: WorkerOptions;
   public abstract readonly size: number;
-  public abstract readonly maxElementsPerWorker: number | null;
+  public abstract readonly maxElementsPerWorker: number | undefined;
 
   /**
    * `WorkerAbstract` constructor.
@@ -24,14 +24,15 @@ export default abstract class WorkerAbstract<T extends WorkerData> {
       poolMaxSize: WorkerConstants.DEFAULT_POOL_MAX_SIZE,
       elementsPerWorker: WorkerConstants.DEFAULT_ELEMENTS_PER_WORKER,
       poolOptions: {},
-      messageHandler: () => {
-        /* This is intentional */
-      },
+      messageHandler: WorkerConstants.EMPTY_FUNCTION,
     }
   ) {
-    if (!workerScript) {
+    if (workerScript === null || workerScript === undefined) {
       throw new Error('Worker script is not defined');
     }
+    if (typeof workerScript === 'string' && workerScript.trim().length === 0) {
+      throw new Error('Worker script is empty');
+    }
     if (!fs.existsSync(workerScript)) {
       throw new Error('Worker script file does not exist');
     }
@@ -39,7 +40,18 @@ export default abstract class WorkerAbstract<T extends WorkerData> {
     this.workerOptions = workerOptions;
   }
 
+  /**
+   * Start the worker pool/set.
+   */
   public abstract start(): Promise<void>;
+  /**
+   * Stop the worker pool/set.
+   */
   public abstract stop(): Promise<void>;
+  /**
+   * Add a task element to the worker pool/set.
+   *
+   * @param elementData -
+   */
   public abstract addElement(elementData: T): Promise<void>;
 }