Commit | Line | Data |
---|---|---|
bdaf31cd JB |
1 | import type { AbstractPoolWorker } from '../abstract-pool-worker' |
2 | import { AbstractWorkerChoiceStrategy } from './abstract-worker-choice-strategy' | |
3 | ||
4 | /** | |
5 | * Selects the next worker in a round robin fashion. | |
6 | * | |
7 | * @template Worker Type of worker which manages the strategy. | |
8 | * @template Data Type of data sent to the worker. This can only be serializable data. | |
9 | * @template Response Type of response of execution. This can only be serializable data. | |
10 | */ | |
11 | export class RoundRobinWorkerChoiceStrategy< | |
12 | Worker extends AbstractPoolWorker, | |
13 | Data, | |
14 | Response | |
15 | > extends AbstractWorkerChoiceStrategy<Worker, Data, Response> { | |
16 | /** | |
17 | * Index for the next worker. | |
18 | */ | |
19 | private nextWorkerIndex: number = 0 | |
20 | ||
a76fac14 | 21 | /** @inheritDoc */ |
bdaf31cd JB |
22 | public choose (): Worker { |
23 | const chosenWorker = this.pool.workers[this.nextWorkerIndex] | |
24 | this.nextWorkerIndex = | |
25 | this.nextWorkerIndex === this.pool.workers.length - 1 | |
26 | ? 0 | |
27 | : this.nextWorkerIndex + 1 | |
28 | return chosenWorker | |
29 | } | |
30 | } |