Do not enforce the singleton design pattern in the worker object factory
[e-mobility-charging-stations-simulator.git] / src / worker / WorkerFactory.ts
index b5cf327c12d57ab7935b27aefb4a26cf2b79ca05..093c7cd3c9ecb49e3e38c0c889cc7f6b34443c1d 100644 (file)
@@ -8,34 +8,30 @@ import WorkerStaticPool from './WorkerStaticPool';
 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;
   }
 }