+ private constructor() {
+ // This is intentional
+ }
+
+ public static getWorkerImplementation<T extends WorkerData>(
+ workerScript: string,
+ workerProcessType: WorkerProcessType,
+ workerOptions?: WorkerOptions
+ ): WorkerAbstract<T> | null {
+ if (!isMainThread) {
+ throw new Error('Trying to get a worker implementation outside the main thread');
+ }
+ workerOptions = workerOptions ?? ({} as WorkerOptions);
+ workerOptions.workerStartDelay =
+ workerOptions?.workerStartDelay ?? WorkerConstants.DEFAULT_WORKER_START_DELAY;
+ workerOptions.elementStartDelay =
+ workerOptions?.elementStartDelay ?? WorkerConstants.DEFAULT_ELEMENT_START_DELAY;
+ workerOptions.poolOptions = workerOptions?.poolOptions ?? ({} as PoolOptions<Worker>);
+ workerOptions?.messageHandler &&
+ // eslint-disable-next-line @typescript-eslint/no-misused-promises
+ (workerOptions.poolOptions.messageHandler = workerOptions.messageHandler);
+ let workerImplementation: WorkerAbstract<T> = null;
+ switch (workerProcessType) {
+ case WorkerProcessType.WORKER_SET:
+ workerOptions.elementsPerWorker =
+ workerOptions?.elementsPerWorker ?? WorkerConstants.DEFAULT_ELEMENTS_PER_WORKER;
+ workerImplementation = new WorkerSet(workerScript, workerOptions);
+ break;
+ case WorkerProcessType.STATIC_POOL:
+ workerOptions.poolMaxSize =
+ workerOptions?.poolMaxSize ?? WorkerConstants.DEFAULT_POOL_MAX_SIZE;
+ workerImplementation = new WorkerStaticPool(workerScript, workerOptions);
+ break;
+ case WorkerProcessType.DYNAMIC_POOL:
+ workerOptions.poolMinSize =
+ workerOptions?.poolMinSize ?? WorkerConstants.DEFAULT_POOL_MIN_SIZE;
+ workerOptions.poolMaxSize =
+ workerOptions?.poolMaxSize ?? WorkerConstants.DEFAULT_POOL_MAX_SIZE;
+ workerImplementation = new WorkerDynamicPool(workerScript, workerOptions);
+ break;
+ default:
+ // eslint-disable-next-line @typescript-eslint/restrict-template-expressions
+ throw new Error(`Worker implementation type '${workerProcessType}' not found`);