build(deps-dev): apply updates

[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 91441ace5a58d8ca6756a21b679a3dd13b73df55..5d26f82ba4f5784873c18eb037beed9b26a5e2f5 100644 (file)
--- a/src/pools/selection-strategies/worker-choice-strategy-context.ts
+++ b/src/pools/selection-strategies/worker-choice-strategy-context.ts
@@ -35,41 +35,54 @@ export class WorkerChoiceStrategyContext<
    * Worker choice strategy context constructor.
    *
    * @param pool - The pool instance.
-   * @param workerChoiceStrategyType - The worker choice strategy.
+   * @param workerChoiceStrategy - The worker choice strategy.
    * @param opts - The worker choice strategy options.
    */
   public constructor (
     pool: IPool<Worker, Data, Response>,
-    private workerChoiceStrategyType: WorkerChoiceStrategy = WorkerChoiceStrategies.ROUND_ROBIN,
+    private workerChoiceStrategy: WorkerChoiceStrategy = WorkerChoiceStrategies.ROUND_ROBIN,
     opts: WorkerChoiceStrategyOptions = DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS
   ) {
-    this.execute.bind(this)
+    this.execute = this.execute.bind(this)
     this.workerChoiceStrategies = new Map<
     WorkerChoiceStrategy,
     IWorkerChoiceStrategy
     >([
       [
         WorkerChoiceStrategies.ROUND_ROBIN,
-        new RoundRobinWorkerChoiceStrategy<Worker, Data, Response>(pool, opts)
+        new (RoundRobinWorkerChoiceStrategy.bind(this))<Worker, Data, Response>(
+          pool,
+          opts
+        )
       ],
       [
         WorkerChoiceStrategies.LESS_USED,
-        new LessUsedWorkerChoiceStrategy<Worker, Data, Response>(pool, opts)
+        new (LessUsedWorkerChoiceStrategy.bind(this))<Worker, Data, Response>(
+          pool,
+          opts
+        )
       ],
       [
         WorkerChoiceStrategies.LESS_BUSY,
-        new LessBusyWorkerChoiceStrategy<Worker, Data, Response>(pool, opts)
+        new (LessBusyWorkerChoiceStrategy.bind(this))<Worker, Data, Response>(
+          pool,
+          opts
+        )
       ],
       [
         WorkerChoiceStrategies.FAIR_SHARE,
-        new FairShareWorkerChoiceStrategy<Worker, Data, Response>(pool, opts)
-      ],
-      [
-        WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN,
-        new WeightedRoundRobinWorkerChoiceStrategy<Worker, Data, Response>(
+        new (FairShareWorkerChoiceStrategy.bind(this))<Worker, Data, Response>(
           pool,
           opts
         )
+      ],
+      [
+        WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN,
+        new (WeightedRoundRobinWorkerChoiceStrategy.bind(this))<
+        Worker,
+        Data,
+        Response
+        >(pool, opts)
       ]
     ])
   }
@@ -82,7 +95,7 @@ export class WorkerChoiceStrategyContext<
   public getRequiredStatistics (): RequiredStatistics {
     return (
       this.workerChoiceStrategies.get(
-        this.workerChoiceStrategyType
+        this.workerChoiceStrategy
       ) as IWorkerChoiceStrategy
     ).requiredStatistics
   }
@@ -95,27 +108,45 @@ export class WorkerChoiceStrategyContext<
   public setWorkerChoiceStrategy (
     workerChoiceStrategy: WorkerChoiceStrategy
   ): void {
-    if (this.workerChoiceStrategyType !== workerChoiceStrategy) {
-      this.workerChoiceStrategyType = workerChoiceStrategy
+    if (this.workerChoiceStrategy !== workerChoiceStrategy) {
+      this.workerChoiceStrategy = workerChoiceStrategy
     }
-    this.workerChoiceStrategies.get(this.workerChoiceStrategyType)?.reset()
+    this.workerChoiceStrategies.get(this.workerChoiceStrategy)?.reset()
+  }
+
+  /**
+   * Updates the worker node key in the worker choice strategy internals in the context.
+   *
+   * @returns `true` if the update is successful, `false` otherwise.
+   */
+  public update (workerNodeKey: number): boolean {
+    return (
+      this.workerChoiceStrategies.get(
+        this.workerChoiceStrategy
+      ) as IWorkerChoiceStrategy
+    ).update(workerNodeKey)
   }
 
   /**
    * 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.workerChoiceStrategyType
+        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.
@@ -123,8 +154,19 @@ export class WorkerChoiceStrategyContext<
   public remove (workerNodeKey: number): boolean {
     return (
       this.workerChoiceStrategies.get(
-        this.workerChoiceStrategyType
+        this.workerChoiceStrategy
       ) as IWorkerChoiceStrategy
     ).remove(workerNodeKey)
   }
+
+  /**
+   * Sets the worker choice strategies in the context options.
+   *
+   * @param opts - The worker choice strategy options.
+   */
+  public setOptions (opts: WorkerChoiceStrategyOptions): void {
+    this.workerChoiceStrategies.forEach(workerChoiceStrategy => {
+      workerChoiceStrategy.setOptions(opts)
+    })
+  }
 }