Machine Learning Services Extension - External Languages (#9043)

* Added external language list, edit and delete UIs to Machine Learning extension

extensions/mssql/src/languageExtension/languageExtensionService.ts

@@ -0,0 +1,71 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the Source EULA. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import { AppContext } from '../appContext';
+import { SqlOpsDataClient, ISqlOpsFeature } from 'dataprotocol-client';
+import * as constants from '../constants';
+import * as mssql from '../mssql';
+import * as Utils from '../utils';
+import { ClientCapabilities } from 'vscode-languageclient';
+import * as contracts from '../contracts';
+
+export class LanguageExtensionService implements mssql.ILanguageExtensionService {
+
+	public static asFeature(context: AppContext): ISqlOpsFeature {
+		return class extends LanguageExtensionService {
+			constructor(client: SqlOpsDataClient) {
+				super(context, client);
+			}
+
+			fillClientCapabilities(capabilities: ClientCapabilities): void {
+				Utils.ensure(capabilities, 'languageExtension')!.languageExtension = true;
+			}
+
+			initialize(): void {
+			}
+		};
+	}
+
+	private constructor(context: AppContext, protected readonly client: SqlOpsDataClient) {
+		context.registerService(constants.LanguageExtensionService, this);
+	}
+
+	public listLanguages(ownerUri: string): Thenable<mssql.ExternalLanguage[]> {
+		const params: contracts.LanguageExtensionRequestParam = { ownerUri: ownerUri };
+		return this.client.sendRequest(contracts.LanguageExtensibilityListRequest.type, params).then(
+			r => {
+				return r.languages;
+			},
+			e => {
+				this.client.logFailedRequest(contracts.LanguageExtensibilityListRequest.type, e);
+				return Promise.reject(e);
+			}
+		);
+	}
+
+	public updateLanguage(ownerUri: string, language: mssql.ExternalLanguage): Thenable<void> {
+		const params: contracts.ExternalLanguageUpdateRequestParam = { ownerUri: ownerUri, language: language };
+		return this.client.sendRequest(contracts.LanguageExtensibilityUpdateRequest.type, params).then(
+			() => {
+			},
+			e => {
+				this.client.logFailedRequest(contracts.LanguageExtensibilityUpdateRequest.type, e);
+				return Promise.reject(e);
+			}
+		);
+	}
+
+	public deleteLanguage(ownerUri: string, languageName: string): Thenable<void> {
+		const params: contracts.ExternalLanguageRequestParam = { ownerUri: ownerUri, languageName: languageName };
+		return this.client.sendRequest(contracts.LanguageExtensibilityDeleteRequest.type, params).then(
+			() => {
+			},
+			e => {
+				this.client.logFailedRequest(contracts.LanguageExtensibilityDeleteRequest.type, e);
+				return Promise.reject(e);
+			}
+		);
+	}
+}