import { isMainThread } from 'worker_threads';
export default class WorkerFactory {
- private static workerImplementation: WorkerAbstract | null;
-
private constructor() {}
- public static getWorkerImplementation<T>(workerScript: string, workerProcessType: WorkerProcessType, options?: WorkerOptions, forceInstantiation = false): WorkerAbstract | null {
+ public static getWorkerImplementation<T>(workerScript: string, workerProcessType: WorkerProcessType, options?: WorkerOptions): WorkerAbstract | null {
if (!isMainThread) {
throw new Error('Trying to get a worker implementation outside the main thread');
}
- if (!WorkerFactory.workerImplementation || forceInstantiation) {
- options = options ?? {} as WorkerOptions;
- options.startDelay = options.startDelay ?? Constants.WORKER_START_DELAY;
- WorkerFactory.workerImplementation = null;
- switch (workerProcessType) {
- case WorkerProcessType.WORKER_SET:
- options.elementsPerWorker = options.elementsPerWorker ?? Constants.DEFAULT_CHARGING_STATIONS_PER_WORKER;
- WorkerFactory.workerImplementation = new WorkerSet<T>(workerScript, options.elementsPerWorker, options.startDelay);
- break;
- case WorkerProcessType.STATIC_POOL:
- options.poolMaxSize = options.poolMaxSize ?? Constants.DEFAULT_WORKER_POOL_MAX_SIZE;
- WorkerFactory.workerImplementation = new WorkerStaticPool<T>(workerScript, options.poolMaxSize, options.startDelay, options.poolOptions);
- break;
- case WorkerProcessType.DYNAMIC_POOL:
- options.poolMinSize = options.poolMinSize ?? Constants.DEFAULT_WORKER_POOL_MIN_SIZE;
- options.poolMaxSize = options.poolMaxSize ?? Constants.DEFAULT_WORKER_POOL_MAX_SIZE;
- WorkerFactory.workerImplementation = new WorkerDynamicPool<T>(workerScript, options.poolMinSize, options.poolMaxSize, options.startDelay, options.poolOptions);
- break;
- }
+ options = options ?? {} as WorkerOptions;
+ options.startDelay = options.startDelay ?? Constants.WORKER_START_DELAY;
+ let workerImplementation: WorkerAbstract = null;
+ switch (workerProcessType) {
+ case WorkerProcessType.WORKER_SET:
+ options.elementsPerWorker = options.elementsPerWorker ?? Constants.DEFAULT_CHARGING_STATIONS_PER_WORKER;
+ workerImplementation = new WorkerSet<T>(workerScript, options.elementsPerWorker, options.startDelay);
+ break;
+ case WorkerProcessType.STATIC_POOL:
+ options.poolMaxSize = options.poolMaxSize ?? Constants.DEFAULT_WORKER_POOL_MAX_SIZE;
+ workerImplementation = new WorkerStaticPool<T>(workerScript, options.poolMaxSize, options.startDelay, options.poolOptions);
+ break;
+ case WorkerProcessType.DYNAMIC_POOL:
+ options.poolMinSize = options.poolMinSize ?? Constants.DEFAULT_WORKER_POOL_MIN_SIZE;
+ options.poolMaxSize = options.poolMaxSize ?? Constants.DEFAULT_WORKER_POOL_MAX_SIZE;
+ workerImplementation = new WorkerDynamicPool<T>(workerScript, options.poolMinSize, options.poolMaxSize, options.startDelay, options.poolOptions);
+ break;
}
- return WorkerFactory.workerImplementation;
+ return workerImplementation;
}
}