refactor(NODE-7083): index operations to modernized operation

Author: durran

src/operations/search_indexes/create.ts

@@ -1,9 +1,11 @@
-import type { Document } from '../../bson';
+import { BSONType, type Document } from '../../bson';
+import { type Connection } from '../../cmap/connection';
+import { MongoDBResponse } from '../../cmap/wire_protocol/responses';
 import type { Collection } from '../../collection';
-import type { Server } from '../../sdam/server';
+import type { ServerCommandOptions } from '../../sdam/server';
 import type { ClientSession } from '../../sessions';
 import { type TimeoutContext } from '../../timeout';
-import { AbstractOperation } from '../operation';
+import { ModernizedOperation } from '../operation';
 
 /**
  * @public
@@ -20,37 +22,36 @@ export interface SearchIndexDescription extends Document {
 }
 
 /** @internal */
-export class CreateSearchIndexesOperation extends AbstractOperation<string[]> {
+export class CreateSearchIndexesOperation extends ModernizedOperation<string[]> {
+  override SERVER_COMMAND_RESPONSE_TYPE = MongoDBResponse;
   private readonly collection: Collection;
   private readonly descriptions: ReadonlyArray<SearchIndexDescription>;
 
   constructor(collection: Collection, descriptions: ReadonlyArray<SearchIndexDescription>) {
     super();
     this.collection = collection;
     this.descriptions = descriptions;
+    this.ns = collection.fullNamespace;
   }
 
   override get commandName() {
     return 'createSearchIndexes' as const;
   }
 
-  override async execute(
-    server: Server,
-    session: ClientSession | undefined,
-    timeoutContext: TimeoutContext
-  ): Promise<string[]> {
+  override buildCommand(_connection: Connection, _session?: ClientSession): Document {
     const namespace = this.collection.fullNamespace;
-    const command = {
+    return {
       createSearchIndexes: namespace.collection,
       indexes: this.descriptions
     };
+  }
 
-    const res = await server.command(namespace, command, {
-      session,
-      timeoutContext
-    });
+  override handleOk(response: MongoDBResponse): string[] {
+    const indexesCreated = response.get('indexesCreated', BSONType.array, true);
+    return indexesCreated.toObject().map(({ name }: { name: string }) => name);
+  }
 
-    const indexesCreated: Array<{ name: string }> = res?.indexesCreated ?? [];
-    return indexesCreated.map(({ name }) => name);
+  override buildOptions(timeoutContext: TimeoutContext): ServerCommandOptions {
+    return { session: this.session, timeoutContext };
   }
 }