Merge branch 'master' of github.com:poolifier/poolifier
[poolifier.git] / src / pools / selection-strategies / round-robin-worker-choice-strategy.ts
index e265172fad11beede47047155d360b38c5cff4a0..eda00c7582e305a57c10318d2878c24045fe21fc 100644 (file)
@@ -1,5 +1,6 @@
-import type { IPoolWorker } from '../pool-worker'
+import type { IWorker } from '../worker'
 import { AbstractWorkerChoiceStrategy } from './abstract-worker-choice-strategy'
+import type { IWorkerChoiceStrategy } from './selection-strategies-types'
 
 /**
  * Selects the next worker in a round robin fashion.
@@ -9,28 +10,45 @@ import { AbstractWorkerChoiceStrategy } from './abstract-worker-choice-strategy'
  * @typeParam Response - Type of response of execution. This can only be serializable data.
  */
 export class RoundRobinWorkerChoiceStrategy<
-  Worker extends IPoolWorker,
-  Data,
-  Response
-> extends AbstractWorkerChoiceStrategy<Worker, Data, Response> {
+    Worker extends IWorker,
+    Data = unknown,
+    Response = unknown
+  >
+  extends AbstractWorkerChoiceStrategy<Worker, Data, Response>
+  implements IWorkerChoiceStrategy {
   /**
-   * Id of the next worker.
+   * Id of the next worker node.
    */
-  private nextWorkerId: number = 0
+  private nextWorkerNodeId: number = 0
 
-  /** {@inheritDoc} */
+  /** @inheritDoc */
   public reset (): boolean {
-    this.nextWorkerId = 0
+    this.nextWorkerNodeId = 0
     return true
   }
 
-  /** {@inheritDoc} */
+  /** @inheritDoc */
   public choose (): number {
-    const chosenWorkerKey = this.nextWorkerId
-    this.nextWorkerId =
-      this.nextWorkerId === this.pool.workers.length - 1
+    const chosenWorkerNodeKey = this.nextWorkerNodeId
+    this.nextWorkerNodeId =
+      this.nextWorkerNodeId === this.pool.workerNodes.length - 1
         ? 0
-        : this.nextWorkerId + 1
-    return chosenWorkerKey
+        : this.nextWorkerNodeId + 1
+    return chosenWorkerNodeKey
+  }
+
+  /** @inheritDoc */
+  public remove (workerNodeKey: number): boolean {
+    if (this.nextWorkerNodeId === workerNodeKey) {
+      if (this.pool.workerNodes.length === 0) {
+        this.nextWorkerNodeId = 0
+      } else {
+        this.nextWorkerNodeId =
+          this.nextWorkerNodeId > this.pool.workerNodes.length - 1
+            ? this.pool.workerNodes.length - 1
+            : this.nextWorkerNodeId
+      }
+    }
+    return true
   }
 }