-import { WorkerOptions, WorkerProcessType } from '../types/Worker';
+import { isMainThread } from 'node:worker_threads'
-import Constants from '../utils/Constants';
-import WorkerAbstract from './WorkerAbstract';
-import WorkerDynamicPool from './WorkerDynamicPool';
-import WorkerSet from './WorkerSet';
-import WorkerStaticPool from './WorkerStaticPool';
-import { isMainThread } from 'worker_threads';
+import { mergeDeepRight } from 'rambda'
-export default class WorkerFactory {
- public static getWorkerImplementation<T>(workerScript: string, workerProcessType: WorkerProcessType, options?: WorkerOptions): WorkerAbstract {
+import type { WorkerAbstract } from './WorkerAbstract.js'
+import { DEFAULT_WORKER_OPTIONS } from './WorkerConstants.js'
+import { WorkerDynamicPool } from './WorkerDynamicPool.js'
+import { WorkerFixedPool } from './WorkerFixedPool.js'
+import { WorkerSet } from './WorkerSet.js'
+import { type WorkerData, type WorkerOptions, WorkerProcessType } from './WorkerTypes.js'
+
+// eslint-disable-next-line @typescript-eslint/no-extraneous-class
+export class WorkerFactory {
+ private constructor () {
+ // This is intentional
+ }
+
+ public static getWorkerImplementation<D extends WorkerData, R extends WorkerData>(
+ workerScript: string,
+ workerProcessType: WorkerProcessType,
+ workerOptions?: WorkerOptions
+ ): WorkerAbstract<D, R> {
if (!isMainThread) {
- throw new Error('Trying to get a worker implementation outside the main thread');
+ throw new Error('Cannot get a worker implementation outside the main thread')
}
- options = options ?? {} as WorkerOptions;
- options.startDelay = options.startDelay ?? Constants.WORKER_START_DELAY;
+ workerOptions = mergeDeepRight<WorkerOptions>(DEFAULT_WORKER_OPTIONS, workerOptions ?? {})
switch (workerProcessType) {
- case WorkerProcessType.WORKER_SET:
- options.elementsPerWorker = options.elementsPerWorker ?? 1;
- return new WorkerSet<T>(workerScript, options.elementsPerWorker, options.startDelay);
- case WorkerProcessType.STATIC_POOL:
- options.poolMaxSize = options.poolMaxSize ?? 16;
- return new WorkerStaticPool<T>(workerScript, options.poolMaxSize, options.startDelay);
- case WorkerProcessType.DYNAMIC_POOL:
- options.poolMinSize = options.poolMinSize ?? 4;
- options.poolMaxSize = options.poolMaxSize ?? 16;
- return new WorkerDynamicPool<T>(workerScript, options.poolMinSize, options.poolMaxSize, options.startDelay);
+ case WorkerProcessType.workerSet:
+ return new WorkerSet<D, R>(workerScript, workerOptions)
+ case WorkerProcessType.fixedPool:
+ return new WorkerFixedPool<D, R>(workerScript, workerOptions)
+ case WorkerProcessType.dynamicPool:
+ return new WorkerDynamicPool<D, R>(workerScript, workerOptions)
default:
- return null;
+ // eslint-disable-next-line @typescript-eslint/restrict-template-expressions
+ throw new Error(`Worker implementation type '${workerProcessType}' not found`)
}
}
}