X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=src%2Fpools%2Fselection-strategies%2Fworker-choice-strategy-context.ts;h=7c7574fa7a39f55913282a60bd0becf35e88b6fc;hb=336e91c4a22c1c67f0f1cff28dbbb18bff8d8083;hp=28e3af081db65595fb985f39e30a930a43d70620;hpb=501aea93c14789538c4e221fbab2f8afb80f4cf9;p=poolifier.git

diff --git a/src/pools/selection-strategies/worker-choice-strategy-context.ts b/src/pools/selection-strategies/worker-choice-strategy-context.ts
index 28e3af08..7c7574fa 100644
--- a/src/pools/selection-strategies/worker-choice-strategy-context.ts
+++ b/src/pools/selection-strategies/worker-choice-strategy-context.ts
@@ -34,6 +34,11 @@ export class WorkerChoiceStrategyContext<
   IWorkerChoiceStrategy
   >
 
+  /**
+   * The number of times the worker choice strategy in the context has been retried.
+   */
+  private choiceRetriesCount = 0
+
   /**
    * Worker choice strategy context constructor.
    *
@@ -44,8 +49,9 @@ export class WorkerChoiceStrategyContext<
   public constructor (
     pool: IPool<Worker, Data, Response>,
     private workerChoiceStrategy: WorkerChoiceStrategy = WorkerChoiceStrategies.ROUND_ROBIN,
-    opts: WorkerChoiceStrategyOptions = DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS
+    private opts: WorkerChoiceStrategyOptions = DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS
   ) {
+    this.opts = { ...DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS, ...opts }
     this.execute = this.execute.bind(this)
     this.workerChoiceStrategies = new Map<
     WorkerChoiceStrategy,
@@ -119,7 +125,7 @@ export class WorkerChoiceStrategyContext<
   }
 
   /**
-   * Gets the worker choice strategy task statistics requirements in the context.
+   * Gets the worker choice strategy in the context task statistics requirements.
    *
    * @returns The task statistics requirements.
    */
@@ -146,7 +152,7 @@ export class WorkerChoiceStrategyContext<
   }
 
   /**
-   * Updates the worker node key in the worker choice strategy internals in the context.
+   * Updates the worker node key in the worker choice strategy in the context internals.
    *
    * @returns `true` if the update is successful, `false` otherwise.
    */
@@ -159,10 +165,10 @@ export class WorkerChoiceStrategyContext<
   }
 
   /**
-   * Executes the worker choice strategy algorithm in the context.
+   * Executes the worker choice strategy in the context algorithm.
    *
    * @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.
+   * @throws {@link https://nodejs.org/api/errors.html#class-error} If after configured retries the worker node key is null or undefined .
    */
   public execute (): number {
     const workerNodeKey = (
@@ -170,9 +176,18 @@ export class WorkerChoiceStrategyContext<
         this.workerChoiceStrategy
       ) as IWorkerChoiceStrategy
     ).choose()
-    if (workerNodeKey == null) {
-      throw new Error('Worker node key chosen is null or undefined')
+    if (
+      workerNodeKey == null &&
+      this.choiceRetriesCount < (this.opts.choiceRetries as number)
+    ) {
+      this.choiceRetriesCount++
+      return this.execute()
+    } else if (workerNodeKey == null) {
+      throw new Error(
+        `Worker node key chosen is null or undefined after ${this.choiceRetriesCount} retries`
+      )
     }
+    this.choiceRetriesCount = 0
     return workerNodeKey
   }
 
@@ -196,6 +211,7 @@ export class WorkerChoiceStrategyContext<
    * @param opts - The worker choice strategy options.
    */
   public setOptions (opts: WorkerChoiceStrategyOptions): void {
+    this.opts = { ...DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS, ...opts }
     for (const workerChoiceStrategy of this.workerChoiceStrategies.values()) {
       workerChoiceStrategy.setOptions(opts)
     }