[7.x] add graph sample data (#54558)

x-pack/plugins/graph/common/constants.ts

@@ -0,0 +1,11 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License;
+ * you may not use this file except in compliance with the Elastic License.
+ */
+
+export const APP_ICON = 'graphApp';
+
+export function createWorkspacePath(id: string) {
+  return `/app/graph/#/workspace/${id}`;
+}

x-pack/plugins/graph/server/lib/license_state.ts

@@ -5,20 +5,23 @@
  */
 
 import Boom from 'boom';
+import { map } from 'rxjs/operators';
 import { Observable, Subscription } from 'rxjs';
 import { ILicense } from '../../../licensing/common/types';
 import { checkLicense, GraphLicenseInformation } from '../../common/check_license';
 
 export class LicenseState {
   private licenseInformation: GraphLicenseInformation = checkLicense(undefined);
   private subscription: Subscription | null = null;
+  private observable: Observable<GraphLicenseInformation> | null = null;
 
-  private updateInformation(license: ILicense | undefined) {
-    this.licenseInformation = checkLicense(license);
+  private updateInformation(licenseInformation: GraphLicenseInformation) {
+    this.licenseInformation = licenseInformation;
   }
 
   public start(license$: Observable<ILicense>) {
-    this.subscription = license$.subscribe(this.updateInformation.bind(this));
+    this.observable = license$.pipe(map(checkLicense));
+    this.subscription = this.observable.subscribe(this.updateInformation.bind(this));
   }
 
   public stop() {
@@ -30,6 +33,10 @@ export class LicenseState {
   public getLicenseInformation() {
     return this.licenseInformation;
   }
+
+  public getLicenseInformation$() {
+    return this.observable;
+  }
 }
 
 export function verifyApiAccess(licenseState: LicenseState) {

x-pack/plugins/graph/server/plugin.ts

@@ -9,15 +9,24 @@ import { LicensingPluginSetup } from '../../licensing/server';
 import { LicenseState } from './lib/license_state';
 import { registerSearchRoute } from './routes/search';
 import { registerExploreRoute } from './routes/explore';
+import { HomeServerPluginSetup } from '../../../../src/plugins/home/server';
+import { registerSampleData } from './sample_data';
 
 export class GraphPlugin implements Plugin {
   private licenseState: LicenseState | null = null;
 
-  public async setup(core: CoreSetup, { licensing }: { licensing: LicensingPluginSetup }) {
+  public async setup(
+    core: CoreSetup,
+    { licensing, home }: { licensing: LicensingPluginSetup; home?: HomeServerPluginSetup }
+  ) {
     const licenseState = new LicenseState();
     licenseState.start(licensing.license$);
     this.licenseState = licenseState;
 
+    if (home) {
+      registerSampleData(home.sampleData, licenseState);
+    }
+
     const router = core.http.createRouter();
     registerSearchRoute({ licenseState, router });
     registerExploreRoute({ licenseState, router });