Merge pull request #871 from poolifier/dependabot/npm_and_yarn/examples/typescript...
[poolifier.git] / src / pools / selection-strategies / fair-share-worker-choice-strategy.ts
index f678f83b9719f93c3c3defd2013dec42fea31a8d..bc8f8b48746ebf185503455241e94d42e8600552 100644 (file)
@@ -69,26 +69,36 @@ export class FairShareWorkerChoiceStrategy<
   }
 
   /** @inheritDoc */
-  public choose (): number {
+  public choose (): number | undefined {
+    const chosenWorkerNodeKey = this.fairShareNextWorkerNodeKey()
+    this.assignChosenWorkerNodeKey(chosenWorkerNodeKey)
+    return this.nextWorkerNodeKey
+  }
+
+  /** @inheritDoc */
+  public remove (workerNodeKey: number): boolean {
+    this.workersVirtualTaskEndTimestamp.splice(workerNodeKey, 1)
+    return true
+  }
+
+  private fairShareNextWorkerNodeKey (): number | undefined {
     let minWorkerVirtualTaskEndTimestamp = Infinity
+    let chosenWorkerNodeKey: number | undefined
     for (const [workerNodeKey] of this.pool.workerNodes.entries()) {
       if (this.workersVirtualTaskEndTimestamp[workerNodeKey] == null) {
         this.computeWorkerVirtualTaskEndTimestamp(workerNodeKey)
       }
       const workerVirtualTaskEndTimestamp =
         this.workersVirtualTaskEndTimestamp[workerNodeKey]
-      if (workerVirtualTaskEndTimestamp < minWorkerVirtualTaskEndTimestamp) {
+      if (
+        this.isWorkerNodeEligible(workerNodeKey) &&
+        workerVirtualTaskEndTimestamp < minWorkerVirtualTaskEndTimestamp
+      ) {
         minWorkerVirtualTaskEndTimestamp = workerVirtualTaskEndTimestamp
-        this.nextWorkerNodeId = workerNodeKey
+        chosenWorkerNodeKey = workerNodeKey
       }
     }
-    return this.nextWorkerNodeId
-  }
-
-  /** @inheritDoc */
-  public remove (workerNodeKey: number): boolean {
-    this.workersVirtualTaskEndTimestamp.splice(workerNodeKey, 1)
-    return true
+    return chosenWorkerNodeKey
   }
 
   /**