Integrate first SQL Notebooks Bits into Master (#3679)

* First crack tsql notebook (no output rendered yet)

* getting messages back

* intellisense working first cell, no connection errors

* sql notebook cell output functioning

* Latest SQL noteobook changes

* Undo change to launch.json

* Plumbing providers through

* Kernels shown from multiple providers, can switch between them. No mementos yet

* Ensure we have a feature flag for SQL notebooks, ensure existing functionality still works

* Fix tslint duplicate imports issue

* Addressing PR comments

* second round of PR feedback to cleanup notebook service manager code

* merge latest from master

src/sql/parts/common/customInputConverter.ts

@@ -17,7 +17,7 @@ import { IQueryEditorOptions } from 'sql/parts/query/common/queryEditorService';
 import { QueryPlanInput } from 'sql/parts/queryPlan/queryPlanInput';
 import { NotebookInput, NotebookInputModel, NotebookInputValidator } from 'sql/parts/notebook/notebookInput';
 import { DEFAULT_NOTEBOOK_PROVIDER, INotebookService } from 'sql/services/notebook/notebookService';
-import { getProviderForFileName } from 'sql/parts/notebook/notebookUtils';
+import { getProvidersForFileName } from 'sql/parts/notebook/notebookUtils';
 import { ResourceEditorInput } from 'vs/workbench/common/editor/resourceEditorInput';
 
 const fs = require('fs');
@@ -63,13 +63,14 @@ export function convertEditorInput(input: EditorInput, options: IQueryEditorOpti
 		if (uri && notebookValidator.isNotebookEnabled()) {
 			return withService<INotebookService, NotebookInput>(instantiationService, INotebookService, notebookService => {
 				let fileName: string = 'untitled';
-				let providerId: string = DEFAULT_NOTEBOOK_PROVIDER;
+				let providerIds: string[] = [DEFAULT_NOTEBOOK_PROVIDER];
 				if (input) {
 					fileName = input.getName();
-					providerId = getProviderForFileName(fileName, notebookService);
+					providerIds = getProvidersForFileName(fileName, notebookService);
 				}
 				let notebookInputModel = new NotebookInputModel(uri, undefined, false, undefined);
-				notebookInputModel.providerId = providerId;
+				notebookInputModel.providerId = providerIds.filter(provider => provider !== DEFAULT_NOTEBOOK_PROVIDER)[0];
+				notebookInputModel.providers = providerIds;
 				let notebookInput: NotebookInput = instantiationService.createInstance(NotebookInput, fileName, notebookInputModel);
 				return notebookInput;
 			});

src/sql/parts/connection/common/utils.ts

@@ -88,7 +88,7 @@ export function parseNumAsTimeString(value: number, includeFraction: boolean = t
 	return tempVal > 0 && includeFraction ? rs + '.' + mss : rs;
 }
 
-export function generateUri(connection: IConnectionProfile, purpose?: 'dashboard' | 'insights' | 'connection'): string {
+export function generateUri(connection: IConnectionProfile, purpose?: 'dashboard' | 'insights' | 'connection' | 'notebook'): string {
 	let prefix = purpose ? uriPrefixes[purpose] : uriPrefixes.default;
 	let uri = generateUriWithPrefix(connection, prefix);
 

src/sql/parts/notebook/cellViews/codeCell.component.ts

@@ -38,9 +38,9 @@ export class CodeCellComponent extends CellView implements OnInit, OnChanges {
 
 	ngOnInit() {
 		if (this.cellModel) {
-			this.cellModel.onOutputsChanged(() => {
+			this._register(this.cellModel.onOutputsChanged(() => {
 				this._changeRef.detectChanges();
-			});
+			}));
 		}
 	}
 

src/sql/parts/notebook/cellViews/outputArea.component.ts

@@ -33,9 +33,9 @@ export class OutputAreaComponent extends AngularDisposable implements OnInit {
 		this._register(this.themeService.onDidColorThemeChange(this.updateTheme, this));
 		this.updateTheme(this.themeService.getColorTheme());
 		if (this.cellModel) {
-			this.cellModel.onOutputsChanged(() => {
+			this._register(this.cellModel.onOutputsChanged(() => {
 				this._changeRef.detectChanges();
-			});
+			}));
 		}
 	}
 

src/sql/parts/notebook/cellViews/textCell.component.ts

@@ -91,9 +91,9 @@ export class TextCellComponent extends CellView implements OnInit, OnChanges {
 		this.setLoading(false);
 		this._register(this.themeService.onDidColorThemeChange(this.updateTheme, this));
 		this.updateTheme(this.themeService.getColorTheme());
-		this.cellModel.onOutputsChanged(e => {
+		this._register(this.cellModel.onOutputsChanged(e => {
 			this.updatePreview();
-		});
+		}));
 	}
 
 	ngOnChanges(changes: { [propKey: string]: SimpleChange }) {

src/sql/parts/notebook/models/cell.ts

@@ -226,6 +226,9 @@ export class CellModel implements ICellModel {
 			this._outputs.push(this.rewriteOutputUrls(output));
 			this.fireOutputsChanged();
 		}
+		if (!this._future.inProgress) {
+			this._future.dispose();
+		}
 	}
 
 	private rewriteOutputUrls(output: nb.ICellOutput): nb.ICellOutput {
@@ -327,6 +330,7 @@ export class CellModel implements ICellModel {
 		CellModel.LanguageMapping['pyspark3'] = 'python';
 		CellModel.LanguageMapping['python'] = 'python';
 		CellModel.LanguageMapping['scala'] = 'scala';
+		CellModel.LanguageMapping['sql'] = 'sql';
 	}
 
 	private get languageInfo(): nb.ILanguageInfo {

src/sql/parts/notebook/models/modelInterfaces.ts

@@ -249,9 +249,9 @@ export interface INotebookModel {
 	readonly languageInfo: nb.ILanguageInfo;
 
 	/**
-	 * The notebook service used to call backend APIs
+	 * All notebook managers applicable for a given notebook
 	 */
-	readonly notebookManager: INotebookManager;
+	readonly notebookManagers: INotebookManager[];
 
 	/**
 	 * Event fired on first initialization of the kernel and
@@ -299,6 +299,11 @@ export interface INotebookModel {
 	 */
 	trustedMode: boolean;
 
+	/**
+	 * Current notebook provider id
+	 */
+	providerId: string;
+
 	/**
 	 * Change the current kernel from the Kernel dropdown
 	 * @param displayName kernel name (as displayed in Kernel dropdown)
@@ -411,7 +416,8 @@ export interface INotebookModelOptions {
 	 */
 	factory: IModelFactory;
 
-	notebookManager: INotebookManager;
+	notebookManagers: INotebookManager[];
+	providerId: string;
 
 	notificationService: INotificationService;
 	connectionService: IConnectionManagementService;

src/sql/parts/notebook/models/notebookModel.ts

@@ -16,7 +16,7 @@ import { IClientSession, INotebookModel, IDefaultConnection, INotebookModelOptio
 import { NotebookChangeType, CellTypes, CellType } from 'sql/parts/notebook/models/contracts';
 import { nbversion } from '../notebookConstants';
 import * as notebookUtils from '../notebookUtils';
-import { INotebookManager } from 'sql/services/notebook/notebookService';
+import { INotebookManager, SQL_NOTEBOOK_PROVIDER, DEFAULT_NOTEBOOK_PROVIDER } from 'sql/services/notebook/notebookService';
 import { SparkMagicContexts } from 'sql/parts/notebook/models/sparkMagicContexts';
 import { IConnectionProfile } from 'sql/parts/connection/common/interfaces';
 import { NotebookConnection } from 'sql/parts/notebook/models/notebookConnection';
@@ -45,7 +45,8 @@ export class NotebookModel extends Disposable implements INotebookModel {
 	private _contentChangedEmitter = new Emitter<NotebookContentChange>();
 	private _kernelsChangedEmitter = new Emitter<nb.IKernelSpec>();
 	private _inErrorState: boolean = false;
-	private _clientSession: IClientSession;
+	private _clientSessions: IClientSession[] = [];
+	private _activeClientSession: IClientSession;
 	private _sessionLoadFinished: Promise<void>;
 	private _onClientSessionReady = new Emitter<IClientSession>();
 	private _activeContexts: IDefaultConnection;
@@ -60,20 +61,26 @@ export class NotebookModel extends Disposable implements INotebookModel {
 	private _hadoopConnection: NotebookConnection;
 	private _defaultKernel: nb.IKernelSpec;
 	private _activeCell: ICellModel;
+	private _providerId: string;
 
 	constructor(private notebookOptions: INotebookModelOptions, startSessionImmediately?: boolean, private connectionProfile?: IConnectionProfile) {
 		super();
-		if (!notebookOptions || !notebookOptions.notebookUri || !notebookOptions.notebookManager) {
+		if (!notebookOptions || !notebookOptions.notebookUri || !notebookOptions.notebookManagers) {
 			throw new Error('path or notebook service not defined');
 		}
 		if (startSessionImmediately) {
 			this.backgroundStartSession();
 		}
 		this._trustedMode = false;
+		this._providerId = notebookOptions.providerId;
+	}
+
+	public get notebookManagers(): INotebookManager[] {
+		return this.notebookOptions.notebookManagers.filter(manager => manager.providerId !== DEFAULT_NOTEBOOK_PROVIDER);
 	}
 
 	public get notebookManager(): INotebookManager {
-		return this.notebookOptions.notebookManager;
+		return this.notebookManagers.find(manager => manager.providerId === this._providerId);
 	}
 
 	public get notebookUri() : URI {
@@ -93,7 +100,7 @@ export class NotebookModel extends Disposable implements INotebookModel {
 	}
 
 	public get isSessionReady(): boolean {
-		return !!this._clientSession;
+		return !!this._activeClientSession;
 	}
 
 	/**
@@ -102,11 +109,11 @@ export class NotebookModel extends Disposable implements INotebookModel {
 	 * notebook environment
 	 */
 	public get clientSession(): IClientSession {
-		return this._clientSession;
+		return this._activeClientSession;
 	}
 
 	public get kernelChanged(): Event<nb.IKernelChangedArgs> {
-		return this.clientSession.kernelChanged;
+		return this._activeClientSession.kernelChanged;
 	}
 
 	public get kernelsChanged(): Event<nb.IKernelSpec> {
@@ -130,7 +137,21 @@ export class NotebookModel extends Disposable implements INotebookModel {
 	}
 
 	public get specs(): nb.IAllKernels | undefined {
-		return this.notebookManager.sessionManager.specs;
+		let specs: nb.IAllKernels = {
+			defaultKernel: undefined,
+			kernels: []
+		};
+		this.notebookManagers.forEach(manager => {
+			if (manager.sessionManager && manager.sessionManager.specs && manager.sessionManager.specs.kernels) {
+				manager.sessionManager.specs.kernels.forEach(kernel => {
+					specs.kernels.push(kernel);
+				});
+				if (!specs.defaultKernel) {
+					specs.defaultKernel = manager.sessionManager.specs.defaultKernel;
+				}
+			}
+		});
+		return specs;
 	}
 
 	public get inErrorState(): boolean {
@@ -145,6 +166,10 @@ export class NotebookModel extends Disposable implements INotebookModel {
 		return this._trustedMode;
 	}
 
+	public get providerId(): string {
+		return this._providerId;
+	}
+
 	public set trustedMode(isTrusted: boolean) {
 		this._trustedMode = isTrusted;
 		if (this._cells) {
@@ -178,11 +203,16 @@ export class NotebookModel extends Disposable implements INotebookModel {
 			this._trustedMode = isTrusted;
 			let contents = null;
 			if (this.notebookOptions.notebookUri.scheme !== Schemas.untitled) {
-				contents = await this.notebookManager.contentManager.getNotebookContents(this.notebookOptions.notebookUri);
+				// TODO: separate ContentManager from NotebookManager
+				contents = await this.notebookManagers[0].contentManager.getNotebookContents(this.notebookOptions.notebookUri);
 			}
 			let factory = this.notebookOptions.factory;
 			// if cells already exist, create them with language info (if it is saved)
 			this._cells = undefined;
+			this._defaultLanguageInfo = {
+				name: this._providerId === SQL_NOTEBOOK_PROVIDER ? 'sql' : 'python',
+				version: ''
+			};
 			if (contents) {
 				this._defaultLanguageInfo = this.getDefaultLanguageInfo(contents);
 				this._savedKernelInfo = this.getSavedKernelInfo(contents);
@@ -288,29 +318,36 @@ export class NotebookModel extends Disposable implements INotebookModel {
 	}
 
 	public backgroundStartSession(): void {
-		this._clientSession = this.notebookOptions.factory.createClientSession({
-			notebookUri: this.notebookOptions.notebookUri,
-			notebookManager: this.notebookManager,
-			notificationService: this.notebookOptions.notificationService
-		});
-		let profile = this.connectionProfile as IConnectionProfile;
-
-		if (this.isValidKnoxConnection(profile)) {
-            this._hadoopConnection = new NotebookConnection(this.connectionProfile);
-        } else {
-            this._hadoopConnection = undefined;
-		}
-
-		this._clientSession.initialize(this._hadoopConnection);
-		this._sessionLoadFinished = this._clientSession.ready.then(async () => {
-			if (this._clientSession.isInErrorState) {
-				this.setErrorState(this._clientSession.errorMessage);
-			} else {
-				this._onClientSessionReady.fire(this._clientSession);
-				// Once session is loaded, can use the session manager to retrieve useful info
-				this.loadKernelInfo();
-				await this.loadActiveContexts(undefined);
+		// TODO: only one session should be active at a time, depending on the current provider
+		this.notebookManagers.forEach(manager => {
+			let clientSession = this.notebookOptions.factory.createClientSession({
+				notebookUri: this.notebookOptions.notebookUri,
+				notebookManager: manager,
+				notificationService: this.notebookOptions.notificationService
+			});
+			this._clientSessions.push(clientSession);
+			if (!this._activeClientSession) {
+				this._activeClientSession = clientSession;
 			}
+			let profile = this.connectionProfile as IConnectionProfile;
+
+			if (this.isValidKnoxConnection(profile)) {
+				this._hadoopConnection = new NotebookConnection(this.connectionProfile);
+			} else {
+				this._hadoopConnection = undefined;
+			}
+
+			clientSession.initialize(this._hadoopConnection);
+			this._sessionLoadFinished = clientSession.ready.then(async () => {
+				if (clientSession.isInErrorState) {
+					this.setErrorState(clientSession.errorMessage);
+				} else {
+					this._onClientSessionReady.fire(clientSession);
+					// Once session is loaded, can use the session manager to retrieve useful info
+					this.loadKernelInfo();
+					await this.loadActiveContexts(undefined);
+				}
+			});
 		});
 	}
 
@@ -334,7 +371,8 @@ export class NotebookModel extends Disposable implements INotebookModel {
 	}
 
 	public doChangeKernel(kernelSpec: nb.IKernelSpec): Promise<void> {
-		return this._clientSession.changeKernel(kernelSpec)
+		this.findProviderIdForKernel(kernelSpec);
+		return this._activeClientSession.changeKernel(kernelSpec)
 			.then((kernel) => {
 				kernel.ready.then(() => {
 					if (kernel.info) {
@@ -359,7 +397,7 @@ export class NotebookModel extends Disposable implements INotebookModel {
 			SparkMagicContexts.configureContext(this.notebookOptions);
 			this._hadoopConnection = new NotebookConnection(newConnection);
 			this.refreshConnections(newConnection);
-			this._clientSession.updateConnection(this._hadoopConnection);
+			this._activeClientSession.updateConnection(this._hadoopConnection);
 		} catch (err) {
 			let msg = notebookUtils.getErrorMessage(err);
 			this.notifyError(localize('changeContextFailed', 'Changing context failed: {0}', msg));
@@ -381,20 +419,24 @@ export class NotebookModel extends Disposable implements INotebookModel {
 	}
 
 	private loadKernelInfo(): void {
-		this.clientSession.kernelChanged(async (e) => {
-			await this.loadActiveContexts(e);
+		this._clientSessions.forEach(clientSession => {
+			clientSession.kernelChanged(async (e) => {
+				await this.loadActiveContexts(e);
+			});
 		});
 		try {
 			let sessionManager = this.notebookManager.sessionManager;
 			if (sessionManager) {
 				let defaultKernel = SparkMagicContexts.getDefaultKernel(sessionManager.specs, this.connectionProfile, this._savedKernelInfo, this.notebookOptions.notificationService);
 				this._defaultKernel = defaultKernel;
-				this._clientSession.statusChanged(async (session) => {
-					if (session && session.defaultKernelLoaded === true) {
-						this._kernelsChangedEmitter.fire(defaultKernel);
-					} else if (session && !session.defaultKernelLoaded) {
-						this._kernelsChangedEmitter.fire({ name: notebookConstants.python3, display_name: notebookConstants.python3DisplayName });
-					}
+				this._clientSessions.forEach(clientSession => {
+					clientSession.statusChanged(async (session) => {
+						if (session && session.defaultKernelLoaded === true) {
+							this._kernelsChangedEmitter.fire(defaultKernel);
+						} else if (session && !session.defaultKernelLoaded) {
+							this._kernelsChangedEmitter.fire({ name: notebookConstants.python3, display_name: notebookConstants.python3DisplayName });
+						}
+					});
 				});
 				this.doChangeKernel(defaultKernel);
 			}
@@ -408,9 +450,9 @@ export class NotebookModel extends Disposable implements INotebookModel {
 	// Otherwise, default to python
 	private getDefaultLanguageInfo(notebook: nb.INotebookContents): nb.ILanguageInfo {
 		return notebook!.metadata!.language_info || {
-			name: 'python',
+			name: this._providerId === SQL_NOTEBOOK_PROVIDER ? 'sql' : 'python',
 			version: '',
-			mimetype: 'x-python'
+			mimetype: this._providerId === SQL_NOTEBOOK_PROVIDER ? 'x-sql' : 'x-python'
 		};
 	}
 
@@ -444,9 +486,10 @@ export class NotebookModel extends Disposable implements INotebookModel {
 
 	public async handleClosed(): Promise<void> {
 		try {
-			if (this._clientSession) {
-				await this._clientSession.shutdown();
-				this._clientSession = undefined;
+			if (this._activeClientSession) {
+				await this._activeClientSession.shutdown();
+				this._clientSessions = undefined;
+				this._activeClientSession = undefined;
 			}
 		} catch (err) {
 			this.notifyError(localize('shutdownError', 'An error occurred when closing the notebook: {0}', err));
@@ -482,7 +525,8 @@ export class NotebookModel extends Disposable implements INotebookModel {
 		if (!notebook) {
 			return false;
 		}
-		await this.notebookManager.contentManager.save(this.notebookOptions.notebookUri, notebook);
+		// TODO: refactor ContentManager out from NotebookManager
+		await this.notebookManagers[0].contentManager.save(this.notebookOptions.notebookUri, notebook);
 		this._contentChangedEmitter.fire({
 			changeType: NotebookChangeType.DirtyStateChanged,
 			isDirty: false
@@ -504,6 +548,23 @@ export class NotebookModel extends Disposable implements INotebookModel {
 			}
 		}
 	}
+
+	/**
+	 * Set _providerId and _activeClientSession based on a kernelSpec representing new kernel
+	 * @param kernelSpec KernelSpec for new kernel
+	 */
+	private findProviderIdForKernel(kernelSpec: nb.IKernelSpec): void {
+		for (let i = 0; i < this.notebookManagers.length; i++) {
+			if (this.notebookManagers[i].sessionManager && this.notebookManagers[i].sessionManager.specs && this.notebookManagers[i].sessionManager.specs.kernels) {
+				let index = this.notebookManagers[i].sessionManager.specs.kernels.findIndex(kernel => kernel.name === kernelSpec.name);
+				if (index >= 0) {
+					this._activeClientSession = this._clientSessions[i];
+					this._providerId = this.notebookManagers[i].providerId;
+					break;
+				}
+			}
+		}
+	}
 	/**
 	 * Serialize the model to JSON.
 	 */

src/sql/parts/notebook/notebook.component.ts

@@ -34,7 +34,7 @@ import { AngularDisposable } from 'sql/base/common/lifecycle';
 import { CellTypes, CellType } from 'sql/parts/notebook/models/contracts';
 import { ICellModel, IModelFactory, notebookConstants, INotebookModel, NotebookContentChange } from 'sql/parts/notebook/models/modelInterfaces';
 import { IConnectionManagementService, IConnectionDialogService } from 'sql/parts/connection/common/connectionManagement';
-import { INotebookService, INotebookParams, INotebookManager, INotebookEditor, DEFAULT_NOTEBOOK_FILETYPE, DEFAULT_NOTEBOOK_PROVIDER } from 'sql/services/notebook/notebookService';
+import { INotebookService, INotebookParams, INotebookManager, INotebookEditor, DEFAULT_NOTEBOOK_FILETYPE, DEFAULT_NOTEBOOK_PROVIDER, SQL_NOTEBOOK_PROVIDER } from 'sql/services/notebook/notebookService';
 import { IBootstrapParams } from 'sql/services/bootstrap/bootstrapService';
 import { NotebookModel } from 'sql/parts/notebook/models/notebookModel';
 import { ModelFactory } from 'sql/parts/notebook/models/modelFactory';
@@ -64,7 +64,7 @@ export class NotebookComponent extends AngularDisposable implements OnInit, OnDe
 	private _errorMessage: string;
 	protected _actionBar: Taskbar;
 	protected isLoading: boolean;
-	private notebookManager: INotebookManager;
+	private notebookManagers: INotebookManager[] = [];
 	private _modelReadyDeferred = new Deferred<NotebookModel>();
 	private _modelRegisteredDeferred = new Deferred<NotebookModel>();
 	private profile: IConnectionProfile;
@@ -231,13 +231,17 @@ export class NotebookComponent extends AngularDisposable implements OnInit, OnDe
 
 	private async loadModel(): Promise<void> {
 		await this.awaitNonDefaultProvider();
-		this.notebookManager = await this.notebookService.getOrCreateNotebookManager(this._notebookParams.providerId, this._notebookParams.notebookUri);
+		for (let providerId of this._notebookParams.providers) {
+			let notebookManager = await this.notebookService.getOrCreateNotebookManager(providerId, this._notebookParams.notebookUri);
+			this.notebookManagers.push(notebookManager);
+		}
 		let model = new NotebookModel({
 			factory: this.modelFactory,
 			notebookUri: this._notebookParams.notebookUri,
 			connectionService: this.connectionManagementService,
 			notificationService: this.notificationService,
-			notebookManager: this.notebookManager
+			notebookManagers: this.notebookManagers,
+			providerId: notebookUtils.sqlNotebooksEnabled() ? 'sql' : 'jupyter' // this is tricky; really should also depend on the connection profile
 		}, false, this.profile);
 		model.onError((errInfo: INotification) => this.handleModelError(errInfo));
 		await model.requestModelLoad(this._notebookParams.isTrusted);
@@ -258,7 +262,9 @@ export class NotebookComponent extends AngularDisposable implements OnInit, OnDe
 		await this.notebookService.registrationComplete;
 		// Refresh the provider if we had been using default
 		if (DEFAULT_NOTEBOOK_PROVIDER === this._notebookParams.providerId) {
-			this._notebookParams.providerId = notebookUtils.getProviderForFileName(this._notebookParams.notebookUri.fsPath, this.notebookService);
+			let providers= notebookUtils.getProvidersForFileName(this._notebookParams.notebookUri.fsPath, this.notebookService);
+			let tsqlProvider = providers.find(provider => provider === SQL_NOTEBOOK_PROVIDER);
+			this._notebookParams.providerId = tsqlProvider ? SQL_NOTEBOOK_PROVIDER : providers[0];
 		}
 		if (DEFAULT_NOTEBOOK_PROVIDER === this._notebookParams.providerId) {
 			// If it's still the default, warn them they should install an extension

src/sql/parts/notebook/notebookEditor.ts

@@ -88,6 +88,7 @@ export class NotebookEditor extends BaseEditor {
 			notebookUri: input.notebookUri,
 			input: input,
 			providerId: input.providerId ? input.providerId : DEFAULT_NOTEBOOK_PROVIDER,
+			providers: input.providers ? input.providers : [DEFAULT_NOTEBOOK_PROVIDER],
 			isTrusted: input.isTrusted
 		};
 		bootstrapAngular(this.instantiationService,

src/sql/parts/notebook/notebookInput.ts

@@ -24,9 +24,10 @@ export class NotebookInputModel extends EditorModel {
 	private dirty: boolean;
 	private readonly _onDidChangeDirty: Emitter<void> = this._register(new Emitter<void>());
 	private _providerId: string;
-	constructor(public readonly notebookUri: URI, private readonly handle: number, private _isTrusted: boolean = false, private saveHandler?: ModeViewSaveHandler) {
+	constructor(public readonly notebookUri: URI, private readonly handle: number, private _isTrusted: boolean = false, private saveHandler?: ModeViewSaveHandler, provider?: string, private _providers?: string[]) {
 		super();
 		this.dirty = false;
+		this._providerId = provider;
 	}
 
 	public get providerId(): string {
@@ -37,6 +38,14 @@ export class NotebookInputModel extends EditorModel {
 		this._providerId = value;
 	}
 
+	public get providers(): string[] {
+		return this._providers;
+	}
+
+	public set providers(value: string[]) {
+		this._providers = value;
+	}
+
 	get isTrusted(): boolean {
 		return this._isTrusted;
 	}
@@ -99,6 +108,10 @@ export class NotebookInput extends EditorInput {
 		return this._model.providerId;
 	}
 
+	public get providers(): string[] {
+		return this._model.providers;
+	}
+
 	public getTypeId(): string {
 		return NotebookInput.ID;
 	}

src/sql/parts/notebook/notebookUtils.ts

@@ -39,21 +39,26 @@ export async function mkDir(dirPath: string, outputChannel?: IOutputChannel): Pr
 	}
 }
 
-export function getProviderForFileName(fileName: string, notebookService: INotebookService): string {
+export function getProvidersForFileName(fileName: string, notebookService: INotebookService): string[] {
 	let fileExt = path.extname(fileName);
-	let provider: string;
+	let providers: string[];
 	// First try to get provider for actual file type
 	if (fileExt && fileExt.startsWith('.')) {
 		fileExt = fileExt.slice(1,fileExt.length);
-		provider = notebookService.getProviderForFileType(fileExt);
+		providers = notebookService.getProvidersForFileType(fileExt);
 	}
 	// Fallback to provider for default file type (assume this is a global handler)
-	if (!provider) {
-		provider = notebookService.getProviderForFileType(DEFAULT_NOTEBOOK_FILETYPE);
+	if (!providers) {
+		providers = notebookService.getProvidersForFileType(DEFAULT_NOTEBOOK_FILETYPE);
 	}
 	// Finally if all else fails, use the built-in handler
-	if (!provider) {
-		provider = DEFAULT_NOTEBOOK_PROVIDER;
+	if (!providers) {
+		providers = [DEFAULT_NOTEBOOK_PROVIDER];
 	}
-	return provider;
+	return providers;
+}
+
+// Private feature flag to enable Sql Notebook experience
+export function sqlNotebooksEnabled() {
+	return process.env['SQLOPS_SQL_NOTEBOOK'] !== undefined;
 }

src/sql/services/notebook/notebookRegistry.ts

@@ -18,11 +18,12 @@ export const Extensions = {
 export interface NotebookProviderRegistration {
 	provider: string;
 	fileExtensions: string | string[];
+	standardKernels: string | string[];
 }
 
 let notebookProviderType: IJSONSchema = {
 	type: 'object',
-	default: { provider: '', fileExtensions: [] },
+	default: { provider: '', fileExtensions: [], standardKernels: [] },
 	properties: {
 		provider: {
 			description: localize('carbon.extension.contributes.notebook.provider', 'Identifier of the notebook provider.'),
@@ -39,6 +40,18 @@ let notebookProviderType: IJSONSchema = {
 					}
 				}
 			]
+		},
+		standardKernels: {
+			description: localize('carbon.extension.contributes.notebook.standardKernels', 'What kernels should be standard with this notebook provider'),
+			oneOf: [
+				{ type: 'string' },
+				{
+					type: 'array',
+					items: {
+						type: 'string'
+					}
+				}
+			]
 		}
 	}
 };

src/sql/services/notebook/notebookService.ts

@@ -23,6 +23,7 @@ export const INotebookService = createDecorator<INotebookService>(SERVICE_ID);
 
 export const DEFAULT_NOTEBOOK_PROVIDER = 'builtin';
 export const DEFAULT_NOTEBOOK_FILETYPE = 'IPYNB';
+export const SQL_NOTEBOOK_PROVIDER = 'sql';
 
 export interface INotebookService {
 	_serviceBrand: any;
@@ -45,7 +46,7 @@ export interface INotebookService {
 
 	getSupportedFileExtensions(): string[];
 
-	getProviderForFileType(fileType: string): string;
+	getProvidersForFileType(fileType: string): string[];
 
 	/**
 	 * Initializes and returns a Notebook manager that can handle all important calls to open, display, and
@@ -86,6 +87,7 @@ export interface INotebookParams extends IBootstrapParams {
 	notebookUri: URI;
 	input: NotebookInput;
 	providerId: string;
+	providers: string[];
 	isTrusted: boolean;
 	profile?: IConnectionProfile;
 	modelFactory?: ModelFactory;

src/sql/services/notebook/notebookServiceImpl.ts

@@ -12,7 +12,7 @@ import { Registry } from 'vs/platform/registry/common/platform';
 
 import {
 	INotebookService, INotebookManager, INotebookProvider, DEFAULT_NOTEBOOK_PROVIDER,
-	DEFAULT_NOTEBOOK_FILETYPE, INotebookEditor
+	DEFAULT_NOTEBOOK_FILETYPE, INotebookEditor, SQL_NOTEBOOK_PROVIDER
 } from 'sql/services/notebook/notebookService';
 import { RenderMimeRegistry } from 'sql/parts/notebook/outputs/registry';
 import { standardRendererFactories } from 'sql/parts/notebook/outputs/factories';
@@ -27,6 +27,9 @@ import { IExtensionManagementService, IExtensionIdentifier } from 'vs/platform/e
 import { Disposable } from 'vs/base/common/lifecycle';
 import { getIdFromLocalExtensionId } from 'vs/platform/extensionManagement/common/extensionManagementUtil';
 import { Deferred } from 'sql/base/common/promise';
+import { SqlSessionManager } from 'sql/services/notebook/sqlSessionManager';
+import { IInstantiationService } from 'vs/platform/instantiation/common/instantiation';
+import { sqlNotebooksEnabled } from 'sql/parts/notebook/notebookUtils';
 
 export interface NotebookProviderProperties {
 	provider: string;
@@ -70,24 +73,25 @@ export class NotebookService extends Disposable implements INotebookService {
 	private _memento = new Memento('notebookProviders');
 	private _mimeRegistry: RenderMimeRegistry;
 	private _providers: Map<string, ProviderDescriptor> = new Map();
-	private _managers: Map<string, INotebookManager> = new Map();
+	private _managersMap: Map<string, INotebookManager[]> = new Map();
 	private _onNotebookEditorAdd = new Emitter<INotebookEditor>();
 	private _onNotebookEditorRemove = new Emitter<INotebookEditor>();
 	private _onCellChanged = new Emitter<INotebookEditor>();
 	private _onNotebookEditorRename = new Emitter<INotebookEditor>();
 	private _editors = new Map<string, INotebookEditor>();
-	private _fileToProviders = new Map<string, NotebookProviderRegistration>();
+	private _fileToProviders = new Map<string, NotebookProviderRegistration[]>();
 	private _registrationComplete = new Deferred<void>();
 	private _isRegistrationComplete = false;
 
 	constructor(
 		@IStorageService private _storageService: IStorageService,
 		@IExtensionService extensionService: IExtensionService,
-		@IExtensionManagementService extensionManagementService: IExtensionManagementService
+		@IExtensionManagementService extensionManagementService: IExtensionManagementService,
+		@IInstantiationService private _instantiationService: IInstantiationService
 	) {
 		super();
 		this._register(notebookRegistry.onNewRegistration(this.updateRegisteredProviders, this));
-		this.registerDefaultProvider();
+		this.registerBuiltInProvider();
 
 		if (extensionService) {
 				extensionService.whenInstalledExtensionsRegistered().then(() => {
@@ -142,25 +146,33 @@ export class NotebookService extends Disposable implements INotebookService {
 	}
 
 	private addFileProvider(fileType: string, provider: NotebookProviderRegistration) {
-		this._fileToProviders.set(fileType.toUpperCase(), provider);
+		let providers = this._fileToProviders.get(fileType.toUpperCase());
+		if (!providers) {
+			providers = [];
+		}
+		providers.push(provider);
+		this._fileToProviders.set(fileType.toUpperCase(), providers);
 	}
 
 	getSupportedFileExtensions(): string[] {
 		return Array.from(this._fileToProviders.keys());
 	}
 
-	getProviderForFileType(fileType: string): string {
+	getProvidersForFileType(fileType: string): string[] {
 		fileType = fileType.toUpperCase();
-		let provider = this._fileToProviders.get(fileType);
-		return provider ? provider.provider : undefined;
+		let providers = this._fileToProviders.get(fileType);
+
+		return providers ? providers.map(provider => provider.provider) : undefined;
 	}
 
 	public shutdown(): void {
-		this._managers.forEach(manager => {
-			if (manager.serverManager) {
-				// TODO should this thenable be awaited?
-				manager.serverManager.stopServer();
-			}
+		this._managersMap.forEach(manager => {
+			manager.forEach(m => {
+				if (m.serverManager) {
+					// TODO should this thenable be awaited?
+					m.serverManager.stopServer();
+				}
+			});
 		});
 	}
 
@@ -169,14 +181,20 @@ export class NotebookService extends Disposable implements INotebookService {
 			throw new Error(localize('notebookUriNotDefined', 'No URI was passed when creating a notebook manager'));
 		}
 		let uriString = uri.toString();
-		let manager = this._managers.get(uriString);
-		if (!manager) {
-			manager = await this.doWithProvider(providerId, (provider) => provider.getNotebookManager(uri));
-			if (manager) {
-				this._managers.set(uriString, manager);
+		let managers: INotebookManager[] = this._managersMap.get(uriString);
+		// If manager already exists for a given notebook, return it
+		if (managers) {
+			let index = managers.findIndex(m => m.providerId === providerId);
+			if (index && index >= 0) {
+				return managers[index];
 			}
 		}
-		return manager;
+		let newManager = await this.doWithProvider(providerId, (provider) => provider.getNotebookManager(uri));
+
+		managers = managers || [];
+		managers.push(newManager);
+		this._managersMap.set(uriString, managers);
+		return newManager;
 	}
 
 	get onNotebookEditorAdd(): Event<INotebookEditor> {
@@ -226,12 +244,14 @@ export class NotebookService extends Disposable implements INotebookService {
 	private sendNotebookCloseToProvider(editor: INotebookEditor): void {
 		let notebookUri = editor.notebookParams.notebookUri;
 		let uriString = notebookUri.toString();
-		let manager = this._managers.get(uriString);
+		let manager = this._managersMap.get(uriString);
 		if (manager) {
 			// As we have a manager, we can assume provider is ready
-			this._managers.delete(uriString);
-			let provider = this._providers.get(manager.providerId);
-			provider.instance.handleNotebookClosed(notebookUri);
+			this._managersMap.delete(uriString);
+			manager.forEach(m => {
+				let provider = this._providers.get(m.providerId);
+				provider.instance.handleNotebookClosed(notebookUri);
+			});
 		}
 	}
 
@@ -303,13 +323,24 @@ export class NotebookService extends Disposable implements INotebookService {
 		}
 	}
 
-	private registerDefaultProvider() {
-		let defaultProvider = new BuiltinProvider();
-		this.registerProvider(defaultProvider.providerId, defaultProvider);
-		notebookRegistry.registerNotebookProvider({
-			provider: defaultProvider.providerId,
-			fileExtensions: DEFAULT_NOTEBOOK_FILETYPE
-		});
+	private registerBuiltInProvider() {
+		if (!sqlNotebooksEnabled()) {
+			let defaultProvider = new BuiltinProvider();
+			this.registerProvider(defaultProvider.providerId, defaultProvider);
+			notebookRegistry.registerNotebookProvider({
+				provider: defaultProvider.providerId,
+				fileExtensions: DEFAULT_NOTEBOOK_FILETYPE,
+				standardKernels: []
+			});
+		} else {
+			let sqlProvider = new SqlNotebookProvider(this._instantiationService);
+			this.registerProvider(sqlProvider.providerId, sqlProvider);
+			notebookRegistry.registerNotebookProvider({
+				provider: sqlProvider.providerId,
+				fileExtensions: DEFAULT_NOTEBOOK_FILETYPE,
+				standardKernels: ['SQL']
+			});
+		}
 	}
 
 	private removeContributedProvidersFromCache(identifier: IExtensionIdentifier, extensionService: IExtensionService) {
@@ -330,6 +361,7 @@ export class BuiltinProvider implements INotebookProvider {
 	constructor() {
 		this.manager = new BuiltInNotebookManager();
 	}
+
 	public get providerId(): string {
 		return DEFAULT_NOTEBOOK_PROVIDER;
 	}
@@ -350,6 +382,7 @@ export class BuiltInNotebookManager implements INotebookManager {
 		this._contentManager = new LocalContentManager();
 		this._sessionManager = new SessionManager();
 	}
+
 	public get providerId(): string {
 		return DEFAULT_NOTEBOOK_PROVIDER;
 	}
@@ -367,3 +400,50 @@ export class BuiltInNotebookManager implements INotebookManager {
 	}
 
 }
+
+export class SqlNotebookProvider implements INotebookProvider {
+	private manager: SqlNotebookManager;
+
+	constructor(private _instantiationService: IInstantiationService) {
+		this.manager = new SqlNotebookManager(this._instantiationService);
+	}
+
+	public get providerId(): string {
+		return SQL_NOTEBOOK_PROVIDER;
+	}
+
+	getNotebookManager(notebookUri: URI): Thenable<INotebookManager> {
+		return Promise.resolve(this.manager);
+	}
+
+	handleNotebookClosed(notebookUri: URI): void {
+		// No-op
+	}
+}
+
+export class SqlNotebookManager implements INotebookManager {
+	private _contentManager: nb.ContentManager;
+	private _sessionManager: nb.SessionManager;
+
+	constructor(private _instantiationService: IInstantiationService) {
+		this._contentManager = new LocalContentManager();
+		this._sessionManager = new SqlSessionManager(this._instantiationService);
+	}
+
+	public get providerId(): string {
+		return SQL_NOTEBOOK_PROVIDER;
+	}
+
+	public get contentManager(): nb.ContentManager {
+		return this._contentManager;
+	}
+
+	public get serverManager(): nb.ServerManager {
+		return undefined;
+	}
+
+	public get sessionManager(): nb.SessionManager {
+		return this._sessionManager;
+	}
+
+}

src/sql/services/notebook/sessionManager.ts

@@ -1,3 +1,7 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the Source EULA. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
 'use strict';
 
 import { nb } from 'sqlops';

src/sql/services/notebook/sqlSessionManager.ts

@@ -0,0 +1,325 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the Source EULA. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+'use strict';
+
+import { nb, QueryExecuteSubsetResult, IDbColumn, DbCellValue } from 'sqlops';
+import { localize } from 'vs/nls';
+import { FutureInternal } from 'sql/parts/notebook/models/modelInterfaces';
+import QueryRunner, { EventType } from 'sql/parts/query/execution/queryRunner';
+import { IConnectionManagementService, IErrorMessageService } from 'sql/parts/connection/common/connectionManagement';
+import { IInstantiationService } from 'vs/platform/instantiation/common/instantiation';
+import Severity from 'vs/base/common/severity';
+import * as Utils from 'sql/parts/connection/common/utils';
+import { Deferred } from 'sql/base/common/promise';
+import { Disposable } from 'vs/base/common/lifecycle';
+import { mssqlProviderName } from 'sql/parts/connection/common/constants';
+
+export const sqlKernel: string = localize('sqlKernel', 'SQL');
+export const sqlKernelError: string = localize("sqlKernelError", "SQL kernel error");
+
+let sqlKernelSpec: nb.IKernelSpec = ({
+	name: sqlKernel,
+	language: 'sql',
+	display_name: sqlKernel
+});
+
+export interface SQLData {
+	columns: Array<string>;
+	rows: Array<Array<string>>;
+}
+
+export class SqlSessionManager implements nb.SessionManager {
+	constructor(private _instantiationService: IInstantiationService) {}
+
+	public get isReady(): boolean {
+		return true;
+	}
+
+	public get ready(): Thenable<void> {
+		return Promise.resolve();
+	}
+
+	public get specs(): nb.IAllKernels {
+		let allKernels: nb.IAllKernels = {
+			defaultKernel: sqlKernel,
+			kernels: [sqlKernelSpec]
+		};
+		return allKernels;
+	}
+
+	startNew(options: nb.ISessionOptions): Thenable<nb.ISession> {
+		let session = new SqlSession(options, this._instantiationService);
+		return Promise.resolve(session);
+	}
+
+	shutdown(id: string): Thenable<void> {
+		return Promise.resolve();
+	}
+}
+
+export class SqlSession implements nb.ISession {
+	private _kernel: SqlKernel;
+	private _defaultKernelLoaded = false;
+
+	public set defaultKernelLoaded(value) {
+		this._defaultKernelLoaded = value;
+	}
+
+	public get defaultKernelLoaded(): boolean {
+		return this._defaultKernelLoaded;
+	}
+
+	constructor(private options: nb.ISessionOptions, private _instantiationService: IInstantiationService) {
+		this._kernel = this._instantiationService.createInstance(SqlKernel);
+	}
+
+	public get canChangeKernels(): boolean {
+		return true;
+	}
+
+	public get id(): string {
+		return this.options.kernelId || '';
+	}
+
+	public get path(): string {
+		return this.options.path;
+	}
+
+	public get name(): string {
+		return this.options.name || '';
+	}
+
+	public get type(): string {
+		return this.options.type || '';
+	}
+
+	public get status(): nb.KernelStatus {
+		return 'connected';
+	}
+
+	public get kernel(): nb.IKernel {
+		return this._kernel;
+	}
+
+	changeKernel(kernelInfo: nb.IKernelSpec): Thenable<nb.IKernel> {
+		return Promise.resolve(this.kernel);
+	}
+}
+
+class SqlKernel extends Disposable implements nb.IKernel {
+	private _queryRunner: QueryRunner;
+	private _columns: IDbColumn[];
+	private _rows: DbCellValue[][];
+
+	constructor(@IConnectionManagementService private _connectionManagementService: IConnectionManagementService,
+				@IInstantiationService private _instantiationService: IInstantiationService,
+				@IErrorMessageService private _errorMessageService: IErrorMessageService) {
+		super();
+	}
+
+	public get id(): string {
+		return '-1';
+	}
+
+	public get name(): string {
+		return sqlKernel;
+	}
+
+	public get supportsIntellisense(): boolean {
+		return true;
+	}
+
+	public get isReady(): boolean {
+		// should we be checking on the tools service status here?
+		return true;
+	}
+
+	public get ready(): Thenable<void> {
+		return Promise.resolve();
+	}
+
+	public get info(): nb.IInfoReply {
+		let info: nb.IInfoReply = {
+			protocol_version: '',
+			implementation: '',
+			implementation_version: '',
+			language_info: {
+				name: 'sql',
+				version: '',
+			},
+			banner: '',
+			help_links: [{
+				text: '',
+				url: ''
+			}]
+		};
+
+		return info;
+	}
+	getSpec(): Thenable<nb.IKernelSpec> {
+		return Promise.resolve(sqlKernelSpec);
+	}
+
+	requestExecute(content: nb.IExecuteRequest, disposeOnDone?: boolean): nb.IFuture {
+		if (this._queryRunner) {
+			this._queryRunner.runQuery(content.code);
+		} else {
+			let connections = this._connectionManagementService.getActiveConnections();
+			let connectionProfile = connections.find(connection => connection.providerName === mssqlProviderName);
+			let connectionUri = Utils.generateUri(connectionProfile, 'notebook');
+			this._queryRunner = this._instantiationService.createInstance(QueryRunner, connectionUri, undefined);
+			this._connectionManagementService.connect(connectionProfile, connectionUri).then((result) =>
+			{
+				this.addQueryEventListeners(this._queryRunner);
+				this._queryRunner.runQuery(content.code);
+			});
+		}
+
+		return new SQLFuture(this._queryRunner);
+	}
+
+	requestComplete(content: nb.ICompleteRequest): Thenable<nb.ICompleteReplyMsg> {
+		let response: Partial<nb.ICompleteReplyMsg> = { };
+		return Promise.resolve(response as nb.ICompleteReplyMsg);
+	}
+
+	interrupt(): Thenable<void> {
+		return Promise.resolve(undefined);
+	}
+
+	private addQueryEventListeners(queryRunner: QueryRunner): void {
+		this._register(queryRunner.addListener(EventType.COMPLETE, () => {
+			this.queryComplete().catch(error => {
+				this._errorMessageService.showDialog(Severity.Error, sqlKernelError, error);
+			});
+		}));
+		this._register(queryRunner.addListener(EventType.MESSAGE, message => {
+			if (message.isError) {
+				this._errorMessageService.showDialog(Severity.Error, sqlKernelError, message.message);
+			}
+		}));
+	}
+
+	private async queryComplete(): Promise<void> {
+		let batches = this._queryRunner.batchSets;
+		// currently only support 1 batch set 1 resultset
+		if (batches.length > 0) {
+			let batch = batches[0];
+			if (batch.resultSetSummaries.length > 0
+				&& batch.resultSetSummaries[0].rowCount > 0
+			) {
+				let resultset = batch.resultSetSummaries[0];
+				this._columns = resultset.columnInfo;
+				let rows: QueryExecuteSubsetResult;
+				try {
+					rows = await this._queryRunner.getQueryRows(0, resultset.rowCount, batch.id, resultset.id);
+				} catch (e) {
+					return Promise.reject(e);
+				}
+				this._rows = rows.resultSubset.rows;
+			}
+		}
+		// TODO issue #2746 should ideally show a warning inside the dialog if have no data
+	}
+}
+
+export class SQLFuture extends Disposable implements FutureInternal {
+	private _msg: nb.IMessage = undefined;
+
+	constructor(private _queryRunner: QueryRunner) {
+		super();
+	}
+	get inProgress(): boolean {
+		return !this._queryRunner.hasCompleted;
+	}
+
+	get msg(): nb.IMessage {
+		return this._msg;
+	}
+
+	get done(): Thenable<nb.IShellMessage> {
+		let deferred = new Deferred<nb.IShellMessage> ();
+		try {
+			this._register(this._queryRunner.onBatchEnd(e => {
+				let msg: nb.IShellMessage = {
+					channel: 'shell',
+					type: 'execute_reply',
+					content: { status: 'ok' },
+					header: undefined,
+					metadata: {},
+					parent_header: undefined
+				};
+				this._msg = msg;
+				deferred.resolve(msg);
+			}));
+		} catch {
+			return Promise.resolve(undefined);
+		}
+		return deferred.promise;
+	}
+
+	sendInputReply(content: nb.IInputReply): void {
+		// no-op
+	}
+
+	setReplyHandler(handler: nb.MessageHandler<nb.IShellMessage>): void {
+		// no-op
+	}
+	setStdInHandler(handler: nb.MessageHandler<nb.IStdinMessage>): void {
+		// no-op
+	}
+	setIOPubHandler(handler: nb.MessageHandler<nb.IIOPubMessage>): void {
+		this._register(this._queryRunner.onBatchEnd(batch => {
+			this._queryRunner.getQueryRows(0, batch.resultSetSummaries[0].rowCount, 0, 0).then(d => {
+				let data:SQLData = {
+					columns: batch.resultSetSummaries[0].columnInfo.map(c => c.columnName),
+					rows: d.resultSubset.rows.map(r => r.map(c => c.displayValue))
+				};
+				let table: HTMLTableElement = document.createElement('table');
+				table.createTHead();
+				table.createTBody();
+				let hrow = <HTMLTableRowElement>table.insertRow();
+				// headers
+				for (let column of data.columns) {
+					var cell = hrow.insertCell();
+					cell.innerHTML = column;
+				}
+
+				for (let row in data.rows) {
+					let hrow = <HTMLTableRowElement>table.insertRow();
+					for (let column in data.columns) {
+						var cell = hrow.insertCell();
+						cell.innerHTML = data.rows[row][column];
+					}
+				}
+				let tableHtml = '<table>' + table.innerHTML + '</table>';
+
+				let msg: nb.IIOPubMessage = {
+					channel: 'iopub',
+					type: 'iopub',
+					header: <nb.IHeader> {
+						msg_id: undefined,
+						msg_type: 'execute_result'
+					},
+					content: <nb.IExecuteResult> {
+						output_type: 'execute_result',
+						metadata: {},
+						execution_count: 0,
+						data: { 'text/html' : tableHtml},
+					},
+					metadata: undefined,
+					parent_header: undefined
+				};
+				handler.handle(msg);
+			});
+		}));
+	}
+	registerMessageHook(hook: (msg: nb.IIOPubMessage) => boolean | Thenable<boolean>): void {
+		// no-op
+	}
+	removeMessageHook(hook: (msg: nb.IIOPubMessage) => boolean | Thenable<boolean>): void {
+		// no-op
+	}
+}

src/sql/sqlops.proposed.d.ts

@@ -1655,6 +1655,7 @@ declare module 'sqlops' {
 
 		export interface NotebookProvider {
 			readonly providerId: string;
+			readonly standardKernels: string[];
 			getNotebookManager(notebookUri: vscode.Uri): Thenable<NotebookManager>;
 			handleNotebookClosed(notebookUri: vscode.Uri): void;
 		}
@@ -2259,7 +2260,7 @@ declare module 'sqlops' {
 		/**
 		 * The valid channel names.
 		 */
-		export type Channel = 'shell' | 'iopub' | 'stdin';
+		export type Channel = 'shell' | 'iopub' | 'stdin' | 'execute_reply';
 
 		/**
 		 * Kernel message header content.

src/sql/workbench/api/node/mainThreadNotebookDocumentsAndEditors.ts

@@ -23,9 +23,9 @@ import {
 	INotebookDocumentsAndEditorsDelta, INotebookEditorAddData, INotebookShowOptions, INotebookModelAddedData, INotebookModelChangedData
 } from 'sql/workbench/api/node/sqlExtHost.protocol';
 import { NotebookInputModel, NotebookInput } from 'sql/parts/notebook/notebookInput';
-import { INotebookService, INotebookEditor } from 'sql/services/notebook/notebookService';
+import { INotebookService, INotebookEditor, DEFAULT_NOTEBOOK_PROVIDER } from 'sql/services/notebook/notebookService';
 import { TPromise } from 'vs/base/common/winjs.base';
-import { getProviderForFileName } from 'sql/parts/notebook/notebookUtils';
+import { getProvidersForFileName } from 'sql/parts/notebook/notebookUtils';
 import { ISingleNotebookEditOperation } from 'sql/workbench/api/common/sqlExtHostTypes';
 import { disposed } from 'vs/base/common/errors';
 import { ICellModel, NotebookContentChange } from 'sql/parts/notebook/models/modelInterfaces';
@@ -57,6 +57,10 @@ class MainThreadNotebookEditor extends Disposable {
 		return this.editor.notebookParams.providerId;
 	}
 
+	public get providers(): string[] {
+		return this.editor.notebookParams.providers;
+	}
+
 	public get cells(): ICellModel[] {
 		return this.editor.cells;
 	}
@@ -316,11 +320,20 @@ export class MainThreadNotebookDocumentsAndEditors extends Disposable implements
 		let trusted = uri.scheme === Schemas.untitled;
 		let model = new NotebookInputModel(uri, undefined, trusted, undefined);
 		let providerId = options.providerId;
-		if (!providerId) {
+		let providers: string[] = undefined;
+		if (!providerId)
+		{
 			// Ensure there is always a sensible provider ID for this file type
-			providerId = getProviderForFileName(uri.fsPath, this._notebookService);
+			providers = getProvidersForFileName(uri.fsPath, this._notebookService);
+			// Try to use a non-builtin provider first
+			if (providers) {
+				providerId = providers.find(p => p !== DEFAULT_NOTEBOOK_PROVIDER);
+				if (!providerId) {
+					providerId = model.providerId;
+				}
+			}
 		}
-
+		model.providers = providers;
 		model.providerId = providerId;
 		let input = this._instantiationService.createInstance(NotebookInput, undefined, model);
 
@@ -452,6 +465,7 @@ export class MainThreadNotebookDocumentsAndEditors extends Disposable implements
 			uri: editor.uri,
 			isDirty: editor.isDirty,
 			providerId: editor.providerId,
+			providers: editor.providers,
 			cells: this.convertCellModelToNotebookCell(editor.cells)
 		};
 		return addData;
@@ -463,6 +477,7 @@ export class MainThreadNotebookDocumentsAndEditors extends Disposable implements
 			cells: this.convertCellModelToNotebookCell(editor.cells),
 			isDirty: e.isDirty,
 			providerId: editor.providerId,
+			providers: editor.providers,
 			uri: editor.uri
 		};
 		return changeData;

src/sql/workbench/api/node/sqlExtHost.protocol.ts

@@ -796,6 +796,7 @@ export interface INotebookDocumentsAndEditorsDelta {
 export interface INotebookModelAddedData {
 	uri: UriComponents;
 	providerId: string;
+	providers: string[];
 	isDirty: boolean;
 	cells: sqlops.nb.NotebookCell[];
 }
@@ -803,6 +804,7 @@ export interface INotebookModelAddedData {
 export interface INotebookModelChangedData {
 	uri: UriComponents;
 	providerId: string;
+	providers: string[];
 	isDirty: boolean;
 	cells: sqlops.nb.NotebookCell[];
 }