poc for timeline visualization

Signed-off-by: Bandini Bhopi <bandinib@amazon.com>

src/plugins/vis_type_timeline/opensearch_dashboards.json

@@ -4,6 +4,6 @@
   "opensearchDashboardsVersion": "opensearchDashboards",
   "server": true,
   "ui": true,
-  "requiredPlugins": ["visualizations", "data", "expressions"],
+  "requiredPlugins": ["visualizations", "data", "expressions", "dataSource"],
   "requiredBundles": ["opensearchDashboardsUtils", "opensearchDashboardsReact", "visDefaultEditor"]
 }

src/plugins/vis_type_timeline/server/plugin.ts

@@ -35,7 +35,7 @@ import { RecursiveReadonly } from '@osd/utility-types';
 import { deepFreeze } from '@osd/std';
 
 import { PluginStart } from '../../data/server';
-import { CoreSetup, PluginInitializerContext } from '../../../core/server';
+import { CoreSetup, PluginInitializerContext, DataSourcePluginSetup } from '../../../core/server';
 import { configSchema } from '../config';
 import loadFunctions from './lib/load_functions';
 import { functionsRoute } from './routes/functions';
@@ -51,13 +51,17 @@ export interface TimelinePluginStartDeps {
   data: PluginStart;
 }
 
+interface TimelinePluginSsetupDeps {
+  dataSource: DataSourcePluginSetup;
+}
+
 /**
  * Represents Timeline Plugin instance that will be managed by the OpenSearch Dashboards plugin system.
  */
 export class Plugin {
   constructor(private readonly initializerContext: PluginInitializerContext) {}
 
-  public async setup(core: CoreSetup): void {
+  public async setup(core: CoreSetup, plugins: TimelinePluginSsetupDeps): void {
     const config = await this.initializerContext.config
       .create<TypeOf<typeof configSchema>>()
       .pipe(first())

src/plugins/vis_type_timeline/server/series_functions/opensearch/lib/build_request.js

@@ -106,5 +106,6 @@ export default function buildRequest(config, tlConfig, scriptedFields, timeout)
 
   return {
     params: request,
+    dataSourceId: 'f620c970-ca12-11ee-ab29-99c0b09e473b', // Added for testing. This should come as query string parameter.
   };
 }