Merge branch 'master' of github.com:poolifier/poolifier

[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 2d33738731c661e0df84a74a0ffa043e9e3b4e69..486668a2f80d49d80a70f00528a7c8b4ad33467a 100644 (file)
--- a/src/pools/selection-strategies/worker-choice-strategy-context.ts
+++ b/src/pools/selection-strategies/worker-choice-strategy-context.ts
@@ -1,5 +1,6 @@
+import { DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS } from '../../utils'
 import type { IPoolInternal } from '../pool-internal'
-import type { IPoolWorker } from '../pool-worker'
+import type { IWorker } from '../worker'
 import { FairShareWorkerChoiceStrategy } from './fair-share-worker-choice-strategy'
 import { LessBusyWorkerChoiceStrategy } from './less-busy-worker-choice-strategy'
 import { LessUsedWorkerChoiceStrategy } from './less-used-worker-choice-strategy'
@@ -7,7 +8,8 @@ import { RoundRobinWorkerChoiceStrategy } from './round-robin-worker-choice-stra
 import type {
   IWorkerChoiceStrategy,
   RequiredStatistics,
-  WorkerChoiceStrategy
+  WorkerChoiceStrategy,
+  WorkerChoiceStrategyOptions
 } from './selection-strategies-types'
 import { WorkerChoiceStrategies } from './selection-strategies-types'
 import { WeightedRoundRobinWorkerChoiceStrategy } from './weighted-round-robin-worker-choice-strategy'
@@ -20,51 +22,54 @@ import { WeightedRoundRobinWorkerChoiceStrategy } from './weighted-round-robin-w
  * @typeParam Response - Type of response of execution. This can only be serializable data.
  */
 export class WorkerChoiceStrategyContext<
-  Worker extends IPoolWorker,
+  Worker extends IWorker,
   Data = unknown,
   Response = unknown
 > {
   private readonly workerChoiceStrategies: Map<
   WorkerChoiceStrategy,
-  IWorkerChoiceStrategy<Worker, Data, Response>
+  IWorkerChoiceStrategy
   >
 
   /**
    * Worker choice strategy context constructor.
    *
    * @param pool - The pool instance.
-   * @param createWorkerCallback - The worker creation callback for dynamic pool.
-   * @param workerChoiceStrategy - The worker choice strategy.
+   * @param workerChoiceStrategyType - The worker choice strategy.
+   * @param opts - The worker choice strategy options.
    */
   public constructor (
     pool: IPoolInternal<Worker, Data, Response>,
-    private readonly createWorkerCallback: () => number,
-    private workerChoiceStrategyType: WorkerChoiceStrategy = WorkerChoiceStrategies.ROUND_ROBIN
+    private workerChoiceStrategyType: WorkerChoiceStrategy = WorkerChoiceStrategies.ROUND_ROBIN,
+    opts: WorkerChoiceStrategyOptions = DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS
   ) {
     this.execute.bind(this)
     this.workerChoiceStrategies = new Map<
     WorkerChoiceStrategy,
-    IWorkerChoiceStrategy<Worker, Data, Response>
+    IWorkerChoiceStrategy
     >([
       [
         WorkerChoiceStrategies.ROUND_ROBIN,
-        new RoundRobinWorkerChoiceStrategy<Worker, Data, Response>(pool)
+        new RoundRobinWorkerChoiceStrategy<Worker, Data, Response>(pool, opts)
       ],
       [
         WorkerChoiceStrategies.LESS_USED,
-        new LessUsedWorkerChoiceStrategy<Worker, Data, Response>(pool)
+        new LessUsedWorkerChoiceStrategy<Worker, Data, Response>(pool, opts)
       ],
       [
         WorkerChoiceStrategies.LESS_BUSY,
-        new LessBusyWorkerChoiceStrategy<Worker, Data, Response>(pool)
+        new LessBusyWorkerChoiceStrategy<Worker, Data, Response>(pool, opts)
       ],
       [
         WorkerChoiceStrategies.FAIR_SHARE,
-        new FairShareWorkerChoiceStrategy<Worker, Data, Response>(pool)
+        new FairShareWorkerChoiceStrategy<Worker, Data, Response>(pool, opts)
       ],
       [
         WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN,
-        new WeightedRoundRobinWorkerChoiceStrategy<Worker, Data, Response>(pool)
+        new WeightedRoundRobinWorkerChoiceStrategy<Worker, Data, Response>(
+          pool,
+          opts
+        )
       ]
     ])
   }
@@ -78,7 +83,7 @@ export class WorkerChoiceStrategyContext<
     return (
       this.workerChoiceStrategies.get(
         this.workerChoiceStrategyType
-      ) as IWorkerChoiceStrategy<Worker, Data, Response>
+      ) as IWorkerChoiceStrategy
     ).requiredStatistics
   }
 
@@ -88,46 +93,38 @@ export class WorkerChoiceStrategyContext<
    * @param workerChoiceStrategy - The worker choice strategy to set.
    */
   public setWorkerChoiceStrategy (
-    pool: IPoolInternal<Worker, Data, Response>,
     workerChoiceStrategy: WorkerChoiceStrategy
   ): void {
-    if (this.workerChoiceStrategyType === workerChoiceStrategy) {
-      this.workerChoiceStrategies.get(workerChoiceStrategy)?.reset()
-    } else {
+    if (this.workerChoiceStrategyType !== workerChoiceStrategy) {
       this.workerChoiceStrategyType = workerChoiceStrategy
     }
+    this.workerChoiceStrategies.get(this.workerChoiceStrategyType)?.reset()
   }
 
   /**
    * Executes the worker choice strategy algorithm in the context.
    *
-   * @returns The key of the chosen one.
+   * @returns The key of the worker node.
    */
   public execute (): number {
-    const workerChoiceStrategy = this.workerChoiceStrategies.get(
-      this.workerChoiceStrategyType
-    ) as IWorkerChoiceStrategy<Worker, Data, Response>
-    if (
-      workerChoiceStrategy.isDynamicPool &&
-      !workerChoiceStrategy.pool.full &&
-      workerChoiceStrategy.pool.findFreeWorkerKey() === -1
-    ) {
-      return this.createWorkerCallback()
-    }
-    return workerChoiceStrategy.choose()
+    return (
+      this.workerChoiceStrategies.get(
+        this.workerChoiceStrategyType
+      ) as IWorkerChoiceStrategy
+    ).choose()
   }
 
   /**
-   * Removes a worker from the worker choice strategy in the context.
+   * Removes a worker node key from the worker choice strategy in the context.
    *
-   * @param workerKey - The key of the worker to remove.
+   * @param workerNodeKey - The key of the worker node.
    * @returns `true` if the removal is successful, `false` otherwise.
    */
-  public remove (workerKey: number): boolean {
+  public remove (workerNodeKey: number): boolean {
     return (
       this.workerChoiceStrategies.get(
         this.workerChoiceStrategyType
-      ) as IWorkerChoiceStrategy<Worker, Data, Response>
-    ).remove(workerKey)
+      ) as IWorkerChoiceStrategy
+    ).remove(workerNodeKey)
   }
 }