fix: fix worker options argument passing to worker pool/set
[e-mobility-charging-stations-simulator.git] / src / worker / WorkerAbstract.ts
index 715778161af13b59bed90aa2805b0120451c64b8..0ef5470649c2e943e0ff7134cb89b9a3ed29ae3a 100644 (file)
@@ -1,24 +1,71 @@
-import Constants from '../utils/Constants';
-import { WorkerData } from '../types/Worker';
+import type EventEmitterAsyncResource from 'node:events';
+import fs from 'node:fs';
+import type { Worker } from 'node:worker_threads';
 
-export default abstract class WorkerAbstract {
+import type { ErrorHandler, ExitHandler, PoolInfo } from 'poolifier';
+
+import { WorkerConstants } from './WorkerConstants';
+import type { SetInfo, WorkerData, WorkerOptions } from './WorkerTypes';
+import { defaultErrorHandler, defaultExitHandler } from './WorkerUtils';
+
+export abstract class WorkerAbstract<T extends WorkerData> {
   protected readonly workerScript: string;
-  protected readonly workerStartDelay: number;
-  public abstract size: number;
-  public abstract maxElementsPerWorker: number | null;
+  protected readonly workerOptions: WorkerOptions;
+  public abstract readonly info: PoolInfo | SetInfo;
+  public abstract readonly size: number;
+  public abstract readonly maxElementsPerWorker: number | undefined;
+  public abstract readonly emitter: EventEmitterAsyncResource | undefined;
 
   /**
    * `WorkerAbstract` constructor.
    *
-   * @param {string} workerScript
-   * @param {number} workerStartDelay
+   * @param workerScript -
+   * @param workerOptions -
    */
-  constructor(workerScript: string, workerStartDelay: number = Constants.WORKER_START_DELAY) {
+  constructor(
+    workerScript: string,
+    workerOptions: WorkerOptions = {
+      workerStartDelay: WorkerConstants.DEFAULT_WORKER_START_DELAY,
+      elementStartDelay: WorkerConstants.DEFAULT_ELEMENT_START_DELAY,
+      poolMinSize: WorkerConstants.DEFAULT_POOL_MIN_SIZE,
+      poolMaxSize: WorkerConstants.DEFAULT_POOL_MAX_SIZE,
+      elementsPerWorker: WorkerConstants.DEFAULT_ELEMENTS_PER_WORKER,
+      poolOptions: {},
+    }
+  ) {
+    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');
+    }
     this.workerScript = workerScript;
-    this.workerStartDelay = workerStartDelay;
+    this.workerOptions = workerOptions;
+    this.workerOptions.poolOptions?.messageHandler?.bind(this);
+    this.workerOptions.poolOptions.errorHandler = (
+      this.workerOptions?.poolOptions?.errorHandler ?? defaultErrorHandler
+    ).bind(this) as ErrorHandler<Worker>;
+    this.workerOptions.poolOptions?.onlineHandler?.bind(this);
+    this.workerOptions.poolOptions.exitHandler = (
+      this.workerOptions?.poolOptions?.exitHandler ?? defaultExitHandler
+    ).bind(this) as ExitHandler<Worker>;
   }
 
+  /**
+   * Start the worker pool/set.
+   */
   public abstract start(): Promise<void>;
+  /**
+   * Stop the worker pool/set.
+   */
   public abstract stop(): Promise<void>;
-  public abstract addElement(elementData: WorkerData): Promise<void>;
+  /**
+   * Add a task element to the worker pool/set.
+   *
+   * @param elementData -
+   */
+  public abstract addElement(elementData: T): Promise<void>;
 }