Merge branch 'interleaved-weighted-round-robin-worker-choice-strategy' of github...

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

diff --git a/src/pools/selection-strategies/worker-choice-strategy-context.ts b/src/pools/selection-strategies/worker-choice-strategy-context.ts
index e5fddc1b1fc5b400398b2e86bd0ac3b3fd6f97c9..6758f2a68a0dfe2969c3a2e7f60a255597673dc8 100644 (file)
--- a/src/pools/selection-strategies/worker-choice-strategy-context.ts
+++ b/src/pools/selection-strategies/worker-choice-strategy-context.ts
@@ -2,6 +2,7 @@ import { DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS } from '../../utils'
 import type { IPool } from '../pool'
 import type { IWorker } from '../worker'
 import { FairShareWorkerChoiceStrategy } from './fair-share-worker-choice-strategy'
+import { InterleavedWeightedRoundRobinWorkerChoiceStrategy } from './interleaved-weighted-round-robin-worker-choice-strategy'
 import { LessBusyWorkerChoiceStrategy } from './less-busy-worker-choice-strategy'
 import { LessUsedWorkerChoiceStrategy } from './less-used-worker-choice-strategy'
 import { RoundRobinWorkerChoiceStrategy } from './round-robin-worker-choice-strategy'
@@ -83,6 +84,14 @@ export class WorkerChoiceStrategyContext<
         Data,
         Response
         >(pool, opts)
+      ],
+      [
+        WorkerChoiceStrategies.INTERLEAVED_WEIGHTED_ROUND_ROBIN,
+        new (InterleavedWeightedRoundRobinWorkerChoiceStrategy.bind(this))<
+        Worker,
+        Data,
+        Response
+        >(pool, opts)
       ]
     ])
   }
@@ -115,7 +124,7 @@ export class WorkerChoiceStrategyContext<
   }
 
   /**
-   * Updates the worker choice strategy internals in the context.
+   * Updates the worker node key in the worker choice strategy internals in the context.
    *
    * @returns `true` if the update is successful, `false` otherwise.
    */
@@ -131,17 +140,22 @@ export class WorkerChoiceStrategyContext<
    * Executes the worker choice strategy algorithm in the context.
    *
    * @returns The key of the worker node.
+   * @throws {@link https://nodejs.org/api/errors.html#class-error} If the worker node key is null or undefined.
    */
   public execute (): number {
-    return (
+    const workerNodeKey = (
       this.workerChoiceStrategies.get(
         this.workerChoiceStrategy
       ) as IWorkerChoiceStrategy
     ).choose()
+    if (workerNodeKey == null) {
+      throw new Error('Worker node key chosen is null or undefined')
+    }
+    return workerNodeKey
   }
 
   /**
-   * Removes a worker node key from the worker choice strategy in the context.
+   * Removes the worker node key from the worker choice strategy in the context.
    *
    * @param workerNodeKey - The key of the worker node.
    * @returns `true` if the removal is successful, `false` otherwise.