+ if (this.workerChoiceStrategy !== workerChoiceStrategy) {
+ this.workerChoiceStrategy = workerChoiceStrategy
+ }
+ this.workerChoiceStrategies.get(this.workerChoiceStrategy)?.reset()
+ }
+
+ /**
+ * Updates the worker node key in the worker choice strategy in the context internals.
+ *
+ * @returns `true` if the update is successful, `false` otherwise.
+ */
+ public update (workerNodeKey: number): boolean {
+ return (
+ this.workerChoiceStrategies.get(
+ this.workerChoiceStrategy
+ ) as IWorkerChoiceStrategy
+ ).update(workerNodeKey)
+ }
+
+ /**
+ * Executes the worker choice strategy in the context algorithm.
+ *
+ * @returns The key of the worker node.
+ * @throws {@link https://nodejs.org/api/errors.html#class-error} If after configured retries the worker node key is null or undefined.
+ * @throws {@link https://nodejs.org/api/errors.html#class-rangeerror} If the maximum consecutive worker choice strategy executions has been reached.
+ */
+ public execute (): number {
+ const workerChoiceStrategy = this.workerChoiceStrategies.get(
+ this.workerChoiceStrategy
+ ) as IWorkerChoiceStrategy
+ let workerNodeKey: number | undefined
+ const maxExecutionCount = 10000
+ let executionCount = 0
+ let chooseCount = 0
+ let retriesCount = 0
+ do {
+ if (workerChoiceStrategy.hasPoolWorkerNodesReady()) {
+ workerNodeKey = workerChoiceStrategy.choose()
+ if (chooseCount > 0) {
+ retriesCount++
+ }
+ chooseCount++
+ }
+ executionCount++
+ } while (
+ executionCount < maxExecutionCount &&
+ (!workerChoiceStrategy.hasPoolWorkerNodesReady() ||
+ (workerNodeKey == null && retriesCount < (this.opts.retries as number)))