Add server endpoint for top N hosts

src/plugins/profiling/server/routes/register_routes.ts

@@ -7,16 +7,19 @@
  */
 import type { IRouter } from '../../../../core/server';
 import { DataRequestHandlerContext } from '../../../data/server';
-import { registerTraceEventsTopNStackTracesSearchRoute } from './search_topNStackTraces';
+
+import { registerFlameChartSearchRoute } from './search_flameChart';
 import { registerTraceEventsTopNContainersSearchRoute } from './search_topNContainers';
 import { registerTraceEventsTopNDeploymentsSearchRoute } from './search_topNDeployments';
+import { registerTraceEventsTopNHostsSearchRoute } from './search_topNHosts';
+import { registerTraceEventsTopNStackTracesSearchRoute } from './search_topNStackTraces';
 import { registerTraceEventsTopNThreadsSearchRoute } from './search_topNThreads';
-import { registerFlameChartSearchRoute } from './search_flameChart';
 
 export function registerRoutes(router: IRouter<DataRequestHandlerContext>) {
-  registerTraceEventsTopNStackTracesSearchRoute(router);
+  registerFlameChartSearchRoute(router);
   registerTraceEventsTopNContainersSearchRoute(router);
   registerTraceEventsTopNDeploymentsSearchRoute(router);
+  registerTraceEventsTopNHostsSearchRoute(router);
+  registerTraceEventsTopNStackTracesSearchRoute(router);
   registerTraceEventsTopNThreadsSearchRoute(router);
-  registerFlameChartSearchRoute(router);
 }

src/plugins/profiling/server/routes/search_topNHosts.ts

@@ -0,0 +1,18 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0 and the Server Side Public License, v 1; you may not use this file except
+ * in compliance with, at your election, the Elastic License 2.0 or the Server
+ * Side Public License, v 1.
+ */
+import type { DataRequestHandlerContext } from '../../../data/server';
+import type { IRouter } from '../../../../core/server';
+import { getRemoteRoutePaths } from '../../common';
+import { queryTopNCommon } from "./search_topN";
+
+export function registerTraceEventsTopNHostsSearchRoute(
+  router: IRouter<DataRequestHandlerContext>
+) {
+  const paths = getRemoteRoutePaths();
+  return queryTopNCommon(router, paths.TopNHosts, 'HostName');
+}