[7.x] Add direct access link registry and dashboard impl and use in ML (#57496)

examples/url_generators_examples/README.md

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+## Access links examples
+
+This example app shows how to:
+ - Register a direct access link generator.
+ - Handle migration of legacy generators into a new one.
+
+To run this example, use the command `yarn start --run-examples`. Navigate to the access links explorer app

examples/url_generators_examples/kibana.json

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+{
+  "id": "urlGeneratorsExamples",
+  "version": "0.0.1",
+  "kibanaVersion": "kibana",
+  "configPath": ["url_generators_examples"],
+  "server": false,
+  "ui": true,
+  "requiredPlugins": ["share"],
+  "optionalPlugins": []
+}

examples/url_generators_examples/package.json

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+{
+  "name": "url_generators_examples",
+  "version": "1.0.0",
+  "main": "target/examples/url_generators_examples",
+  "kibana": {
+    "version": "kibana",
+    "templateVersion": "1.0.0"
+  },
+  "license": "Apache-2.0",
+  "scripts": {
+    "kbn": "node ../../scripts/kbn.js",
+    "build": "rm -rf './target' && tsc"
+  },
+  "devDependencies": {
+    "typescript": "3.5.3"
+  }
+}

examples/url_generators_examples/public/app.tsx

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+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import React from 'react';
+import ReactDOM from 'react-dom';
+
+import { EuiPageBody } from '@elastic/eui';
+import { EuiPageContent } from '@elastic/eui';
+import { EuiPageContentBody } from '@elastic/eui';
+import { Route, Switch, Redirect, Router, useLocation } from 'react-router-dom';
+import { createBrowserHistory } from 'history';
+import { EuiText } from '@elastic/eui';
+import { AppMountParameters } from '../../../src/core/public';
+
+function useQuery() {
+  const { search } = useLocation();
+  const params = React.useMemo(() => new URLSearchParams(search), [search]);
+  return params;
+}
+
+interface HelloPageProps {
+  firstName: string;
+  lastName: string;
+}
+
+const HelloPage = ({ firstName, lastName }: HelloPageProps) => (
+  <EuiText>{`Hello ${firstName} ${lastName}`}</EuiText>
+);
+
+export const Routes: React.FC<{}> = () => {
+  const query = useQuery();
+
+  return (
+    <EuiPageBody>
+      <EuiPageContent>
+        <EuiPageContentBody>
+          <Switch>
+            <Route path="/hello">
+              <HelloPage
+                firstName={query.get('firstName') || ''}
+                lastName={query.get('lastName') || ''}
+              />
+            </Route>
+            <Redirect from="/" to="/hello" />
+          </Switch>
+        </EuiPageContentBody>
+      </EuiPageContent>
+    </EuiPageBody>
+  );
+};
+
+export const LinksExample: React.FC<{
+  appBasePath: string;
+}> = props => {
+  const history = React.useMemo(
+    () =>
+      createBrowserHistory({
+        basename: props.appBasePath,
+      }),
+    [props.appBasePath]
+  );
+  return (
+    <Router history={history}>
+      <Routes />
+    </Router>
+  );
+};
+
+export const renderApp = (props: { appBasePath: string }, { element }: AppMountParameters) => {
+  ReactDOM.render(<LinksExample {...props} />, element);
+
+  return () => ReactDOM.unmountComponentAtNode(element);
+};

examples/url_generators_examples/public/index.ts

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+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import { AccessLinksExamplesPlugin } from './plugin';
+
+export const plugin = () => new AccessLinksExamplesPlugin();

examples/url_generators_examples/public/plugin.tsx

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+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import { SharePluginStart, SharePluginSetup } from '../../../src/plugins/share/public';
+import { Plugin, CoreSetup, AppMountParameters } from '../../../src/core/public';
+import {
+  HelloLinkGeneratorState,
+  createHelloPageLinkGenerator,
+  LegacyHelloLinkGeneratorState,
+  HELLO_URL_GENERATOR_V1,
+  HELLO_URL_GENERATOR,
+  helloPageLinkGeneratorV1,
+} from './url_generator';
+
+declare module '../../../src/plugins/share/public' {
+  export interface UrlGeneratorStateMapping {
+    [HELLO_URL_GENERATOR_V1]: LegacyHelloLinkGeneratorState;
+    [HELLO_URL_GENERATOR]: HelloLinkGeneratorState;
+  }
+}
+
+interface StartDeps {
+  share: SharePluginStart;
+}
+
+interface SetupDeps {
+  share: SharePluginSetup;
+}
+
+const APP_ID = 'urlGeneratorsExamples';
+
+export class AccessLinksExamplesPlugin implements Plugin<void, void, SetupDeps, StartDeps> {
+  public setup(core: CoreSetup<StartDeps>, { share: { urlGenerators } }: SetupDeps) {
+    urlGenerators.registerUrlGenerator(
+      createHelloPageLinkGenerator(async () => ({
+        appBasePath: (await core.getStartServices())[0].application.getUrlForApp(APP_ID),
+      }))
+    );
+
+    urlGenerators.registerUrlGenerator(helloPageLinkGeneratorV1);
+
+    core.application.register({
+      id: APP_ID,
+      title: 'Access links examples',
+      async mount(params: AppMountParameters) {
+        const { renderApp } = await import('./app');
+        return renderApp(
+          {
+            appBasePath: params.appBasePath,
+          },
+          params
+        );
+      },
+    });
+  }
+
+  public start() {}
+
+  public stop() {}
+}

examples/url_generators_examples/public/url_generator.ts

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+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+import url from 'url';
+import { UrlGeneratorState, UrlGeneratorsDefinition } from '../../../src/plugins/share/public';
+
+/**
+ * The name of the latest variable can always stay the same so code that
+ * uses this link generator statically will switch to the latest version.
+ * Typescript will warn the developer if incorrect state is being passed
+ * down.
+ */
+export const HELLO_URL_GENERATOR = 'HELLO_URL_GENERATOR_V2';
+
+export interface HelloLinkState {
+  firstName: string;
+  lastName: string;
+}
+
+export type HelloLinkGeneratorState = UrlGeneratorState<HelloLinkState>;
+
+export const createHelloPageLinkGenerator = (
+  getStartServices: () => Promise<{ appBasePath: string }>
+): UrlGeneratorsDefinition<typeof HELLO_URL_GENERATOR> => ({
+  id: HELLO_URL_GENERATOR,
+  createUrl: async state => {
+    const startServices = await getStartServices();
+    const appBasePath = startServices.appBasePath;
+    const parsedUrl = url.parse(window.location.href);
+
+    return url.format({
+      protocol: parsedUrl.protocol,
+      host: parsedUrl.host,
+      pathname: `${appBasePath}/hello`,
+      query: {
+        ...state,
+      },
+    });
+  },
+});
+
+/**
+ * The name of this legacy generator id changes, but the *value* stays the same.
+ */
+export const HELLO_URL_GENERATOR_V1 = 'HELLO_URL_GENERATOR';
+
+export interface HelloLinkStateV1 {
+  name: string;
+}
+
+export type LegacyHelloLinkGeneratorState = UrlGeneratorState<
+  HelloLinkStateV1,
+  typeof HELLO_URL_GENERATOR,
+  HelloLinkState
+>;
+
+export const helloPageLinkGeneratorV1: UrlGeneratorsDefinition<typeof HELLO_URL_GENERATOR_V1> = {
+  id: HELLO_URL_GENERATOR_V1,
+  isDeprecated: true,
+  migrate: async state => {
+    return { id: HELLO_URL_GENERATOR, state: { firstName: state.name, lastName: '' } };
+  },
+};

examples/url_generators_examples/tsconfig.json

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+{
+  "extends": "../../tsconfig.json",
+  "compilerOptions": {
+    "outDir": "./target",
+    "skipLibCheck": true
+  },
+  "include": [
+    "index.ts",
+    "public/**/*.ts",
+    "public/**/*.tsx",
+    "server/**/*.ts",
+    "../../typings/**/*"
+  ],
+  "exclude": []
+}

examples/url_generators_explorer/README.md

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+## Access links explorer
+
+This example app shows how to:
+ - Generate links to other applications
+ - Generate dynamic links, when the target application is not known
+ - Handle backward compatibility of urls
+
+To run this example, use the command `yarn start --run-examples`.

examples/url_generators_explorer/kibana.json

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+{
+  "id": "urlGeneratorsExplorer",
+  "version": "0.0.1",
+  "kibanaVersion": "kibana",
+  "configPath": ["url_generators_explorer"],
+  "server": false,
+  "ui": true,
+  "requiredPlugins": ["share", "urlGeneratorsExamples"],
+  "optionalPlugins": []
+}

examples/url_generators_explorer/package.json

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+{
+  "name": "url_generators_explorer",
+  "version": "1.0.0",
+  "main": "target/examples/url_generators_explorer",
+  "kibana": {
+    "version": "kibana",
+    "templateVersion": "1.0.0"
+  },
+  "license": "Apache-2.0",
+  "scripts": {
+    "kbn": "node ../../scripts/kbn.js",
+    "build": "rm -rf './target' && tsc"
+  },
+  "devDependencies": {
+    "typescript": "3.5.3"
+  }
+}