+ const chosenWorkerNodeKey = this.nextWorkerNodeKey
+ do {
+ this.roundRobinNextWorkerNodeKey()
+ } while (!this.isWorkerNodeReady(this.nextWorkerNodeKey))
+ return chosenWorkerNodeKey
+ }
+
+ /** @inheritDoc */
+ public remove (workerNodeKey: number): boolean {
+ if (this.nextWorkerNodeKey === workerNodeKey) {
+ if (this.pool.workerNodes.length === 0) {
+ this.nextWorkerNodeKey = 0
+ } else if (this.nextWorkerNodeKey > this.pool.workerNodes.length - 1) {
+ this.nextWorkerNodeKey = this.pool.workerNodes.length - 1
+ }
+ }
+ return true
+ }
+
+ private roundRobinNextWorkerNodeKey (): number {
+ this.nextWorkerNodeKey =
+ this.nextWorkerNodeKey === this.pool.workerNodes.length - 1