refactor: prepare worker choice strategies code for worker readiness

[poolifier.git] / src / pools / selection-strategies / round-robin-worker-choice-strategy.ts

diff --git a/src/pools/selection-strategies/round-robin-worker-choice-strategy.ts b/src/pools/selection-strategies/round-robin-worker-choice-strategy.ts
index e99383caf977bec57a28d158b7c147806ed41fcb..fdf5ac84fddf87235b1d7732e81f2ccff3aae53b 100644 (file)
--- a/src/pools/selection-strategies/round-robin-worker-choice-strategy.ts
+++ b/src/pools/selection-strategies/round-robin-worker-choice-strategy.ts
@@ -4,6 +4,7 @@ import type { IWorker } from '../worker'
 import { AbstractWorkerChoiceStrategy } from './abstract-worker-choice-strategy'
 import type {
   IWorkerChoiceStrategy,
+  StrategyPolicy,
   WorkerChoiceStrategyOptions
 } from './selection-strategies-types'
 
@@ -11,8 +12,8 @@ import type {
  * Selects the next worker in a round robin fashion.
  *
  * @typeParam Worker - Type of worker which manages the strategy.
- * @typeParam Data - Type of data sent to the worker. This can only be serializable data.
- * @typeParam Response - Type of execution response. This can only be serializable data.
+ * @typeParam Data - Type of data sent to the worker. This can only be structured-cloneable data.
+ * @typeParam Response - Type of execution response. This can only be structured-cloneable data.
  */
 export class RoundRobinWorkerChoiceStrategy<
     Worker extends IWorker,
@@ -21,10 +22,10 @@ export class RoundRobinWorkerChoiceStrategy<
   >
   extends AbstractWorkerChoiceStrategy<Worker, Data, Response>
   implements IWorkerChoiceStrategy {
-  /**
-   * Id of the next worker node.
-   */
-  private nextWorkerNodeId: number = 0
+  /** @inheritDoc */
+  public readonly strategyPolicy: StrategyPolicy = {
+    useDynamicWorker: true
+  }
 
   /** @inheritDoc */
   public constructor (
@@ -32,12 +33,12 @@ export class RoundRobinWorkerChoiceStrategy<
     opts: WorkerChoiceStrategyOptions = DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS
   ) {
     super(pool, opts)
-    this.checkOptions(this.opts)
+    this.setTaskStatisticsRequirements(this.opts)
   }
 
   /** @inheritDoc */
   public reset (): boolean {
-    this.nextWorkerNodeId = 0
+    this.nextWorkerNodeKey = 0
     return true
   }
 
@@ -48,23 +49,27 @@ export class RoundRobinWorkerChoiceStrategy<
 
   /** @inheritDoc */
   public choose (): number {
-    const chosenWorkerNodeKey = this.nextWorkerNodeId
-    this.nextWorkerNodeId =
-      this.nextWorkerNodeId === this.pool.workerNodes.length - 1
-        ? 0
-        : this.nextWorkerNodeId + 1
+    const chosenWorkerNodeKey = this.nextWorkerNodeKey
+    this.roundRobinNextWorkerNodeKey()
     return chosenWorkerNodeKey
   }
 
   /** @inheritDoc */
   public remove (workerNodeKey: number): boolean {
-    if (this.nextWorkerNodeId === workerNodeKey) {
+    if (this.nextWorkerNodeKey === workerNodeKey) {
       if (this.pool.workerNodes.length === 0) {
-        this.nextWorkerNodeId = 0
-      } else if (this.nextWorkerNodeId > this.pool.workerNodes.length - 1) {
-        this.nextWorkerNodeId = this.pool.workerNodes.length - 1
+        this.nextWorkerNodeKey = 0
+      } else if (this.nextWorkerNodeKey > this.pool.workerNodes.length - 1) {
+        this.nextWorkerNodeKey = this.pool.workerNodes.length - 1
       }
     }
     return true
   }
+
+  private roundRobinNextWorkerNodeKey (): void {
+    this.nextWorkerNodeKey =
+      this.nextWorkerNodeKey === this.pool.workerNodes.length - 1
+        ? 0
+        : this.nextWorkerNodeKey + 1
+  }
 }