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/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
import { Emitter, Event } from 'vs/base/common/event';
import { DisposableStore, IDisposable } from 'vs/base/common/lifecycle';
import { ExtensionIdentifier } from 'vs/platform/extensions/common/extensions';
import { extHostNamedCustomer, IExtHostContext } from 'vs/workbench/services/extensions/common/extHostCustomers';
import { INotebookKernelService, INotebookProxyKernel, INotebookProxyKernelChangeEvent, ProxyKernelState, NotebookKernelType } from 'vs/workbench/contrib/notebook/common/notebookKernelService';
import { ExtHostContext, ExtHostNotebookProxyKernelsShape, INotebookProxyKernelDto, MainContext, MainThreadNotebookProxyKernelsShape } from '../common/extHost.protocol';
import { onUnexpectedError } from 'vs/base/common/errors';
abstract class MainThreadProxyKernel implements INotebookProxyKernel {
readonly type: NotebookKernelType.Proxy = NotebookKernelType.Proxy;
protected readonly _onDidChange = new Emitter<INotebookProxyKernelChangeEvent>();
readonly onDidChange: Event<INotebookProxyKernelChangeEvent> = this._onDidChange.event;
readonly id: string;
readonly viewType: string;
readonly extension: ExtensionIdentifier;
readonly preloadProvides: string[] = [];
label: string;
description?: string;
detail?: string;
kind?: string;
supportedLanguages: string[] = [];
connectionState: ProxyKernelState;
constructor(data: INotebookProxyKernelDto) {
this.id = data.id;
this.viewType = data.notebookType;
this.extension = data.extensionId;
this.label = data.label;
this.description = data.description;
this.detail = data.detail;
this.kind = data.kind;
this.connectionState = ProxyKernelState.Disconnected;
}
update(data: Partial<INotebookProxyKernel>) {
const event: INotebookProxyKernelChangeEvent = Object.create(null);
if (data.label !== undefined) {
this.label = data.label;
event.label = true;
}
if (data.description !== undefined) {
this.description = data.description;
event.description = true;
}
if (data.detail !== undefined) {
this.detail = data.detail;
event.detail = true;
}
if (data.kind !== undefined) {
this.kind = data.kind;
event.kind = true;
}
this._onDidChange.fire(event);
}
abstract resolveKernel(): Promise<string | null>;
}
@extHostNamedCustomer(MainContext.MainThreadNotebookProxyKernels)
export class MainThreadNotebookProxyKernels implements MainThreadNotebookProxyKernelsShape {
private readonly _disposables = new DisposableStore();
private readonly _proxyKernels = new Map<number, [kernel: MainThreadProxyKernel, registraion: IDisposable]>();
private readonly _proxyKernelProxy: ExtHostNotebookProxyKernelsShape;
constructor(
extHostContext: IExtHostContext,
@INotebookKernelService private readonly _notebookKernelService: INotebookKernelService,
) {
this._proxyKernelProxy = extHostContext.getProxy(ExtHostContext.ExtHostNotebookProxyKernels);
}
dispose(): void {
this._disposables.dispose();
for (let [, registration] of this._proxyKernels.values()) {
registration.dispose();
}
}
// -- Proxy kernel
async $addProxyKernel(handle: number, data: INotebookProxyKernelDto): Promise<void> {
const that = this;
const proxyKernel = new class extends MainThreadProxyKernel {
async resolveKernel(): Promise<string | null> {
try {
this.connectionState = ProxyKernelState.Initializing;
this._onDidChange.fire({ connectionState: true });
const delegateKernel = await that._proxyKernelProxy.$resolveKernel(handle);
this.connectionState = ProxyKernelState.Connected;
this._onDidChange.fire({ connectionState: true });
return delegateKernel;
} catch (err) {
onUnexpectedError(err);
this.connectionState = ProxyKernelState.Disconnected;
this._onDidChange.fire({ connectionState: true });
return null;
}
}
}(data);
const registration = this._notebookKernelService.registerKernel(proxyKernel);
this._proxyKernels.set(handle, [proxyKernel, registration]);
}
$updateProxyKernel(handle: number, data: Partial<INotebookProxyKernelDto>): void {
const tuple = this._proxyKernels.get(handle);
if (tuple) {
tuple[0].update(data);
}
}
$removeProxyKernel(handle: number): void {
const tuple = this._proxyKernels.get(handle);
if (tuple) {
tuple[1].dispose();
this._proxyKernels.delete(handle);
}
}
}
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