import { AbstractWorkerChoiceStrategy } from './abstract-worker-choice-strategy'
import type {
IWorkerChoiceStrategy,
- StrategyPolicy,
WorkerChoiceStrategyOptions
} from './selection-strategies-types'
>
extends AbstractWorkerChoiceStrategy<Worker, Data, Response>
implements IWorkerChoiceStrategy {
- /** @inheritDoc */
- public readonly strategyPolicy: StrategyPolicy = {
- useDynamicWorker: true
- }
-
/**
* Round id.
* This is used to determine the current round weight.
}
/** @inheritDoc */
- public choose (): number {
- let roundId: number | undefined
+ public choose (): number | undefined {
+ let roundId: number = this.roundId
let workerNodeId: number | undefined
for (
let roundIndex = this.roundId;
roundIndex < this.roundWeights.length;
roundIndex++
) {
+ roundId = roundIndex
for (
- let workerNodeKey = this.nextWorkerNodeKey;
+ let workerNodeKey =
+ this.nextWorkerNodeKey ?? this.previousWorkerNodeKey;
workerNodeKey < this.pool.workerNodes.length;
workerNodeKey++
) {
this.isWorkerNodeEligible(workerNodeKey) &&
workerWeight >= this.roundWeights[roundIndex]
) {
- roundId = roundIndex
workerNodeId = workerNodeKey
break
}
}
}
- this.roundId = roundId ?? 0
- this.nextWorkerNodeKey = workerNodeId ?? 0
+ this.roundId = roundId
+ if (workerNodeId == null) {
+ this.previousWorkerNodeKey =
+ this.nextWorkerNodeKey ?? this.previousWorkerNodeKey
+ }
+ this.nextWorkerNodeKey = workerNodeId
const chosenWorkerNodeKey = this.nextWorkerNodeKey
if (this.nextWorkerNodeKey === this.pool.workerNodes.length - 1) {
this.nextWorkerNodeKey = 0
this.roundId =
this.roundId === this.roundWeights.length - 1 ? 0 : this.roundId + 1
} else {
- this.nextWorkerNodeKey = this.nextWorkerNodeKey + 1
+ this.nextWorkerNodeKey =
+ (this.nextWorkerNodeKey ?? this.previousWorkerNodeKey) + 1
}
return chosenWorkerNodeKey
}