+ 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 (!existsSync(workerScript)) {
+ throw new Error('Worker script file does not exist');
+ }