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Alexey Zorkaltsev
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3 changes: 2 additions & 1 deletion
3
src/__tests__/e2e/table-service/graceful-session-close.test.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,47 @@ | ||
| // import {Logger} from "../logging"; | ||
| // | ||
| // const CancelPromise = Symbol('CancelPromise'); | ||
| // | ||
| // class Context { | ||
| // withId(id:) | ||
| // withValue | ||
| // witghCancel | ||
| // withTimeout() | ||
| // cancel(), | ||
| // getValue(name: string, type: function), | ||
| // | ||
| // } | ||
| // | ||
| // | ||
| // | ||
| // class SomeContext /*extends Context*/ { | ||
| // | ||
| // constructor(opts: { | ||
| // id?, | ||
| // ctx?: SomeContext, // parent context | ||
| // timeout?: number, // fluxon duration | ||
| // // cancellable?: boolean, | ||
| // // requestId?: string, | ||
| // logger?: Logger, | ||
| // // something about spans | ||
| // } = {}) { | ||
| // | ||
| // | ||
| // | ||
| // | ||
| // | ||
| // // ensure logger | ||
| // } | ||
| // | ||
| // cancel() { | ||
| // | ||
| // } | ||
| // | ||
| // | ||
| // [CancelPromise]?: Promise<void>; | ||
| // | ||
| // | ||
| // get cancelPromise() { | ||
| // return this[CancelPromise]; | ||
| // } | ||
| // } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,27 @@ | ||
| // // TODO: Ref count | ||
| // | ||
| // import {Client} from "@grpc/grpc-js"; | ||
| // import {IAuthService} from "../credentials"; | ||
| // import {Logger} from "../logging"; | ||
| // import {ISslCredentials} from "../ssl-credentials"; | ||
| // import {ClientOptions} from "../utils"; | ||
| // | ||
| // class GrpcClientFactory { | ||
| // | ||
| // constructor(database: string, logger: Logger, sslCredentials?: ISslCredentials, clientOptions?: ClientOptions) { | ||
| // } | ||
| // | ||
| // // TODO: Consider to close clients af some period of time of inactivity | ||
| // // TODO: We may close clients that are no longer in discovery list | ||
| // private cache = new WeakMap<String, Client>(); | ||
| // | ||
| // aquire(): Client { | ||
| // | ||
| // } | ||
| // | ||
| // release(client: Client) { | ||
| // | ||
| // } | ||
| // } | ||
| // | ||
| // |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,108 @@ | ||
| import * as $protobuf from "protobufjs"; | ||
| import {ISslCredentials} from "../ssl-credentials"; | ||
| import * as grpc from "@grpc/grpc-js"; | ||
| import _ from "lodash"; | ||
| import {IAuthService} from "../credentials"; | ||
| import {getVersionHeader} from "../version"; | ||
| import {StreamEnd} from "../table/utils"; | ||
| import {ClientOptions, getDatabaseHeader, MetadataHeaders, removeProtocol, ServiceFactory} from "../utils"; | ||
| import {TableAuthenticatedService} from "../table/table-authenticated-service"; | ||
|
|
||
| export abstract class QueryAuthenticatedService<Api extends $protobuf.rpc.Service> { | ||
| protected api: Api; // TODO: Consider remove | ||
| protected metadata: grpc.Metadata; | ||
| private responseMetadata: WeakMap<object, grpc.Metadata>; | ||
| private lastRequest!: object; | ||
|
|
||
| protected readonly headers: MetadataHeaders; | ||
|
|
||
| static isServiceAsyncMethod(target: object, prop: string | number | symbol, receiver: any) { | ||
| return ( | ||
| Reflect.has(target, prop) && | ||
| typeof Reflect.get(target, prop, receiver) === 'function' && | ||
| prop !== 'create' | ||
| ); | ||
| } | ||
|
|
||
| public getResponseMetadata(request: object) { | ||
| return this.responseMetadata.get(request); | ||
| } | ||
|
|
||
| /** | ||
| * | ||
| * @param host | ||
| * @param database | ||
| * @param name | ||
| * @param apiCtor | ||
| * @param authService | ||
| * @param sslCredentials | ||
| * @param clientOptions | ||
| * @param streamMethods In query service API unlike table service API methods that return stream | ||
| * are not labeled with the word Stream in the name. So they must be listed explicitly | ||
| * @protected | ||
| */ | ||
| protected constructor( | ||
| host: string, | ||
| database: string, | ||
| private name: string, | ||
| private apiCtor: ServiceFactory<Api>, | ||
| protected authService: IAuthService, | ||
| protected sslCredentials?: ISslCredentials, | ||
| protected clientOptions?: ClientOptions, | ||
| private streamMethods?: string[], | ||
| ) { | ||
| this.headers = new Map([getVersionHeader(), getDatabaseHeader(database)]); | ||
| this.metadata = new grpc.Metadata(); | ||
| this.responseMetadata = new WeakMap(); | ||
| this.api = new Proxy( | ||
| this.getClient(removeProtocol(host), this.sslCredentials, clientOptions), | ||
| { | ||
| get: (target, prop, receiver) => { | ||
| const property = Reflect.get(target, prop, receiver); | ||
| return TableAuthenticatedService.isServiceAsyncMethod(target, prop, receiver) ? | ||
| async (...args: any[]) => { | ||
| if (!['emit', 'rpcCall', 'rpcImpl'].includes(String(prop))) { | ||
| if (args.length) { | ||
| this.lastRequest = args[0]; | ||
| } | ||
| } | ||
|
|
||
| this.metadata = await this.authService.getAuthMetadata(); | ||
| for (const [name, value] of this.headers) { | ||
| if (value) { | ||
| this.metadata.add(name, value); | ||
| } | ||
| } | ||
|
|
||
| return property.call(receiver, ...args); | ||
| } : | ||
| property; | ||
| } | ||
| } | ||
| ); | ||
| } | ||
|
|
||
| protected getClient(host: string, sslCredentials?: ISslCredentials, clientOptions?: ClientOptions): Api { | ||
| const client = sslCredentials ? | ||
| new grpc.Client(host, grpc.credentials.createSsl(sslCredentials.rootCertificates, sslCredentials.clientCertChain, sslCredentials.clientPrivateKey), clientOptions) : | ||
| new grpc.Client(host, grpc.credentials.createInsecure(), clientOptions); | ||
| const rpcImpl: $protobuf.RPCImpl = (method, requestData, callback) => { | ||
| const path = `/${this.name}/${method.name}`; | ||
| if (method.name.startsWith('Stream') || this.streamMethods?.findIndex((v) => v === method.name)) { | ||
| client.makeServerStreamRequest(path, _.identity, _.identity, requestData, this.metadata) | ||
| .on('data', (data) => callback(null, data)) | ||
| .on('end', () => callback(new StreamEnd(), null)) | ||
| .on('error', (error) => callback(error, null)); | ||
| } else { | ||
| const req = client.makeUnaryRequest(path, _.identity, _.identity, requestData, this.metadata, callback); | ||
| const lastRequest = this.lastRequest; | ||
| req.on('status', ({metadata}: grpc.StatusObject) => { | ||
| if (lastRequest) { | ||
| this.responseMetadata.set(lastRequest, metadata); | ||
| } | ||
| }); | ||
| } | ||
| }; | ||
| return this.apiCtor.create(rpcImpl); | ||
| } | ||
| } |
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