-import type { IPoolWorker } from '../pool-worker'
+import type { IWorker } from '../worker'
import { AbstractWorkerChoiceStrategy } from './abstract-worker-choice-strategy'
+import type { IWorkerChoiceStrategy } from './selection-strategies-types'
/**
* Selects the next worker in a round robin fashion.
* @typeParam Response - Type of response of execution. This can only be serializable data.
*/
export class RoundRobinWorkerChoiceStrategy<
- Worker extends IPoolWorker,
- Data,
- Response
-> extends AbstractWorkerChoiceStrategy<Worker, Data, Response> {
+ Worker extends IWorker,
+ Data = unknown,
+ Response = unknown
+ >
+ extends AbstractWorkerChoiceStrategy<Worker, Data, Response>
+ implements IWorkerChoiceStrategy {
/**
- * Id of the next worker.
+ * Id of the next worker node.
*/
- private nextWorkerId: number = 0
+ private nextWorkerNodeId: number = 0
- /** {@inheritDoc} */
+ /** @inheritDoc */
public reset (): boolean {
- this.nextWorkerId = 0
+ this.nextWorkerNodeId = 0
return true
}
- /** {@inheritDoc} */
+ /** @inheritDoc */
public choose (): number {
- const chosenWorkerKey = this.nextWorkerId
- this.nextWorkerId =
- this.nextWorkerId === this.pool.workers.length - 1
+ const chosenWorkerNodeKey = this.nextWorkerNodeId
+ this.nextWorkerNodeId =
+ this.nextWorkerNodeId === this.pool.workerNodes.length - 1
? 0
- : this.nextWorkerId + 1
- return chosenWorkerKey
+ : this.nextWorkerNodeId + 1
+ return chosenWorkerNodeKey
+ }
+
+ /** @inheritDoc */
+ public remove (workerNodeKey: number): boolean {
+ if (this.nextWorkerNodeId === workerNodeKey) {
+ if (this.pool.workerNodes.length === 0) {
+ this.nextWorkerNodeId = 0
+ } else {
+ this.nextWorkerNodeId =
+ this.nextWorkerNodeId > this.pool.workerNodes.length - 1
+ ? this.pool.workerNodes.length - 1
+ : this.nextWorkerNodeId
+ }
+ }
+ return true
}
}