810 lines
24 KiB
TypeScript
810 lines
24 KiB
TypeScript
/**
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* @author Martin Karkowski
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* @email m.karkowski@zema.de
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* @create date 2020-11-06 08:52:36
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* @modify date 2021-10-19 09:10:34
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* @desc [description]
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*/
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import { EventEmitter } from "events";
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import * as Logger from "js-logger";
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import { ILogger } from "js-logger";
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import { generateId } from "../helpers/idMethods";
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import { copy } from "../helpers/objectMethods";
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import { getNopeLogger } from "../logger/getLogger";
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import { LoggerLevel } from "../logger/nopeLogger";
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import { NopeObservable } from "../observables/nopeObservable";
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import {
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IAvailableInstanceGeneratorsMsg,
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IAvailableInstancesMsg,
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IAvailableServicesMsg,
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IAvailableTopicsMsg,
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ICommunicationBridge,
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ICommunicationInterface,
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ICommunicationMirror,
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IEmitter,
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IExecutingTaskMsg,
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IExternalEventMsg,
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IRequestTaskMsg,
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IResponseTaskMsg,
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IRpcUnregisterMsg,
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ITaskCancelationMsg,
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ValidEventTypesOfMirror
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} from "../types/nope/nopeCommunication.interface";
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import { IDispatcherInfo } from "../types/nope/nopeDispatcher.interface";
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import { INopeObservable } from "../types/nope/nopeObservable.interface";
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const EMITTING_METHODS: Array<keyof ICommunicationInterface> = [
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"emitAurevoir",
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"emitBonjour",
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"emitNewInstanceGeneratorsAvailable",
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"emitNewInstancesAvailable",
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"emitNewObservablesAvailable",
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"emitNewServicesAvailable",
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"emitStatusUpdate",
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"emitTaskCancelation",
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"emitUnregisterRpc",
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"emitExecutingTasks"
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];
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const EMITTING_SPECIFIC_METHODS: Array<keyof ICommunicationInterface> = [
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"emitEvent",
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"emitRpcRequest",
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"emitRpcResponse"
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];
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const ON_METHODS: Array<keyof ICommunicationInterface> = [
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"onAurevoir",
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"onBonjour",
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"onNewInstanceGeneratorsAvailable",
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"onNewInstancesAvailable",
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"onNewObservablesAvailable",
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"onNewServicesAvailable",
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"onStatusUpdate",
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"onTaskCancelation",
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"onUnregisterRpc",
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"onExecutingTasks"
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];
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const ON_SPECIFIC_METHODS: Array<keyof ICommunicationInterface> = [
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"onEvent",
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"onRpcRequest",
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"onRpcResponse"
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];
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export const UNSPECIFIC_TO_METHODS: {
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[key in ValidEventTypesOfMirror]: {
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emit: keyof ICommunicationInterface;
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subscribe: keyof ICommunicationInterface;
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};
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} = {
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Aurevoir: {
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emit: "emitAurevoir",
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subscribe: "onAurevoir"
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},
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Bonjour: {
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emit: "emitBonjour",
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subscribe: "onBonjour"
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},
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NewInstancesAvailable: {
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emit: "emitNewInstancesAvailable",
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subscribe: "onNewInstancesAvailable"
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},
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NewInstanceGeneratorsAvailable: {
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emit: "emitNewInstanceGeneratorsAvailable",
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subscribe: "onNewInstanceGeneratorsAvailable"
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},
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NewObservablesAvailable: {
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emit: "emitNewObservablesAvailable",
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subscribe: "onNewObservablesAvailable"
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},
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NewServicesAvailable: {
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emit: "emitNewServicesAvailable",
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subscribe: "onNewServicesAvailable"
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},
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StatusUpdate: {
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emit: "emitStatusUpdate",
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subscribe: "onStatusUpdate"
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},
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TaskCancelation: {
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emit: "emitTaskCancelation",
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subscribe: "onTaskCancelation"
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},
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RpcUnregister: {
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emit: "emitUnregisterRpc",
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subscribe: "onUnregisterRpc"
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},
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Tasks: {
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emit: "emitExecutingTasks",
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subscribe: "onExecutingTasks"
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}
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};
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const LAYER_METHOD_TO_EVENT: {
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[P in keyof ICommunicationInterface]: string;
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} = {
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// Specific:
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onEvent: "event/",
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emitEvent: "event/",
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onRpcRequest: "",
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emitRpcRequest: "",
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onRpcResponse: "",
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emitRpcResponse: ""
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};
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for (const eventName in UNSPECIFIC_TO_METHODS) {
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const data = UNSPECIFIC_TO_METHODS[eventName];
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LAYER_METHOD_TO_EVENT[data.emit as any] = eventName;
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LAYER_METHOD_TO_EVENT[data.subscribe as any] = eventName;
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}
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// Define additionally a Mapping between the Events
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const MIRROR_METHOD_TO_EVENT: {
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[P in keyof ICommunicationInterface]: ValidEventTypesOfMirror;
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} = copy(LAYER_METHOD_TO_EVENT) as any;
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MIRROR_METHOD_TO_EVENT.onEvent = "Event";
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MIRROR_METHOD_TO_EVENT.emitEvent = "Event";
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MIRROR_METHOD_TO_EVENT.onRpcRequest = "RpcRequest";
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MIRROR_METHOD_TO_EVENT.emitRpcRequest = "RpcRequest";
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MIRROR_METHOD_TO_EVENT.onRpcResponse = "RpcResponse";
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MIRROR_METHOD_TO_EVENT.emitRpcResponse = "RpcResponse";
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const MIRROR_EVENT_TO_EMIT: {
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[P in keyof ValidEventTypesOfMirror]: keyof ICommunicationInterface;
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} = {} as any;
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// Define all Events, that must be considered in a mirror.
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Object.getOwnPropertyNames(MIRROR_METHOD_TO_EVENT).map((method) => {
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if (method.startsWith("emit")) {
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MIRROR_EVENT_TO_EMIT[MIRROR_METHOD_TO_EVENT[method]] =
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method as keyof ICommunicationInterface;
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}
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});
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const OFF_METHODS: Array<keyof ICommunicationInterface> = [
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"offEvent",
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"offRpcRequest",
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"offRpcResponse"
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];
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export class Bridge implements ICommunicationBridge {
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public connected: INopeObservable<boolean>;
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public considerConnection = true;
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public allowServiceRedundancy = false;
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public ownDispatcherId: string;
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public id: string;
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protected _useInternalEmitter: boolean;
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protected _logger: ILogger;
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protected _internalEmitter: EventEmitter;
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protected _layers: Map<
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string,
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{
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layer: ICommunicationInterface;
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considerConnection: boolean;
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forwardData: boolean;
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}
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>;
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protected _mirrors: Map<
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ICommunicationMirror,
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{ considerConnection: boolean }
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>;
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protected _callbacks: Map<
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string, // Method
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Array<(...args) => any>
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>;
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protected _specificCallbacks: Array<{
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callback: (...args) => any;
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method: keyof ICommunicationInterface;
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event: string;
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}>;
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/**
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* Creates an instance of Bridge.
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* @param {*} [id=generateId()] The ID. (this can be adapted later and is only used to simplify debugging)
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* @param {string} [loggerName="bridge"] The Name of the Logger.
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* @param {LoggerLevel} [level="info"] The Level of the Logger.
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* @memberof Bridge
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*/
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constructor(
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id = generateId(),
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loggerName = "bridge",
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level: LoggerLevel = "info"
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) {
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this._internalEmitter = new EventEmitter();
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this._callbacks = new Map();
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this._specificCallbacks = [];
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this._layers = new Map();
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this._mirrors = new Map();
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this._logger = getNopeLogger(loggerName, level);
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this.id = id;
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this._useInternalEmitter = true;
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const _this = this;
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// Now we use the loops to define the functions,
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// required by the interface.
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for (const method of ON_METHODS) {
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(this[method] as any) = async (cb) => {
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_this._on(method, cb);
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};
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}
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for (const method of ON_SPECIFIC_METHODS) {
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(this[method] as any) = async (event: string, cb) => {
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_this._onSpecific(method, event, cb);
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};
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}
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for (const method of OFF_METHODS) {
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(this[method] as any) = async (event: string, cb) => {
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_this._off(cb);
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};
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}
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for (const method of EMITTING_METHODS) {
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const eventName = LAYER_METHOD_TO_EVENT[method];
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(this[method] as any) = async (data) => {
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_this._emit(eventName, null, data);
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};
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}
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for (const method of EMITTING_SPECIFIC_METHODS) {
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(this[method] as any) = async (event: string, data) => {
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_this._emitSpecific(method, null, event, data);
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};
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}
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this.connected = new NopeObservable();
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this.connected.setContent(false);
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// Add a custom handler for the connect flag.
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// the Flag is defined as true, if every socket
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// is connected.
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this.connected.getter = () => {
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for (const data of _this._layers.values()) {
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if (data.considerConnection && !data.layer.connected.getContent()) {
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return false;
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}
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}
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for (const [mirror, { considerConnection }] of _this._mirrors.entries()) {
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if (considerConnection && !mirror.connected.getContent()) {
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return false;
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}
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}
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return true;
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};
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}
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receivesOwnMessages?: boolean;
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async dispose(): Promise<void> {
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// Iterate over the Layers and dispose them.
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for (const item of this._layers.values()) {
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await item.layer.dispose();
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}
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// Now dispose all mirrors
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for (const mirror of this._mirrors.keys()) {
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await mirror.dispose();
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}
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}
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protected _checkInternalEmitter(): void {
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this._useInternalEmitter = true;
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for (const layer of this._layers.values()) {
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if (layer.layer.receivesOwnMessages) {
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this._useInternalEmitter = false;
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break;
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}
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}
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for (const mirror of this._mirrors.keys()) {
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if (mirror.receivesOwnMessages) {
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this._useInternalEmitter = false;
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break;
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}
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}
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}
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/**
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* Helper Function, which will internally subscribe to the Events of the Layer.
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*
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* @protected
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* @param {ICommunicationInterface} layer The Layer to consinder, on this layer, we will subscribe to the events
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* @param {keyof ICommunicationInterface} method The method used for subscription
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* @param {string} event The name of the Event
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* @param {boolean} forwardData Flag, showing whether data will be forwarded or not.
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* @memberof BridgeV2
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*/
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protected _subscribeToCallback(
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layer: ICommunicationInterface,
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method: keyof ICommunicationInterface,
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event: string,
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forwardData: boolean
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): void {
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const _this = this;
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if (ON_SPECIFIC_METHODS.includes(method)) {
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layer[method as any](event, (data) => {
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// Now we are able to iterate over the Methods and forward the content
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// but only if the Layer forwards the content
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if (forwardData) {
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_this._emitSpecific(method, layer, event, data, true);
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} else {
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_this._internalEmitter.emit(event, data);
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}
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}).catch((error) => {
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_this._logger.error("failed subscribing", method);
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_this._logger.error(error);
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});
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} else {
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// Subscribe to the Event.
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layer[method as any]((data) => {
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// Now we are able to iterate over the Methods and forward the content
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// but only if the Layer forwards the content
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if (forwardData) {
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_this._emit(method, layer, data);
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} else {
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_this._internalEmitter.emit(
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LAYER_METHOD_TO_EVENT[method],
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data,
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true
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);
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}
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}).catch((error) => {
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_this._logger.error("failed subscribing", method);
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_this._logger.error(error);
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});
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}
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}
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protected _on(method: keyof ICommunicationInterface, cb): void {
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// Determine the Corresponding Event, that should be used
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// to subescribe to.
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const event = LAYER_METHOD_TO_EVENT[method];
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// Subscribe on the Event
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this._internalEmitter.setMaxListeners(
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this._internalEmitter.getMaxListeners() + 1
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);
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if (this._logger.enabledFor(Logger.DEBUG) && event !== "StatusUpdate") {
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this._logger.debug("subscribe to", event);
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// If logging is enable, we subscribe to that.
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const _this = this;
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this._internalEmitter.on(event, (data) => {
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_this._logger.debug("received", event, data);
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});
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}
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this._internalEmitter.on(event, cb);
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// Store the Unspecific callbacks
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if (!this._callbacks.has(method)) {
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this._callbacks.set(method, [cb]);
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} else {
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this._callbacks.get(method).push(cb);
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}
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// Iterate over the Layers and on the connected Layers,
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// subscribe the methods.
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for (const data of this._layers.values()) {
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if (data.layer.connected.getContent()) {
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this._subscribeToCallback(data.layer, method, event, data.forwardData);
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}
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}
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}
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protected _onSpecific(
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method: keyof ICommunicationInterface,
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event: string,
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callback
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): void {
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// Determine the event that we are using internally.
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// It is a mix between the method alias channel and
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// the event.
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const eventToUse = LAYER_METHOD_TO_EVENT[method] + event;
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// Subscribe on the Event
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this._internalEmitter.setMaxListeners(
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this._internalEmitter.getMaxListeners() + 1
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);
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if (this._logger.enabledFor(Logger.DEBUG) && event !== "StatusUpdate") {
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this._logger.debug("subscribe", method, "specifically on", eventToUse);
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const _this = this;
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this._internalEmitter.on(eventToUse, (data) => {
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_this._logger.debug("received", event, data);
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});
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}
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this._internalEmitter.on(eventToUse, callback);
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// Add the callbacks.
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this._specificCallbacks.push({
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callback,
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method,
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event: eventToUse
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});
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// Iterate over the Layers and on the connected Layers,
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// subscribe the methods.
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for (const data of this._layers.values()) {
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if (data.layer.connected.getContent()) {
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this._subscribeToCallback(
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data.layer,
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method,
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eventToUse,
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data.forwardData
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);
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}
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}
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}
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protected _off(cb): void {
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// Determine the event that we are using internally.
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// It is a mix between the method alias channel and
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// the event.
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for (let i = 0; i < this._specificCallbacks.length; i++) {
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if (this._specificCallbacks[i].callback == cb) {
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this._specificCallbacks.splice(i, 1);
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break;
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}
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}
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// Theoretically we must remove the subscriptions.
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// But we wont do this, because if the connection has
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// been lost, or the Layer has been removed, the stored
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// callbacks wont be called any more.
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}
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protected _emit(
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eventName: string,
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toExclude: ICommunicationInterface | ICommunicationMirror = null,
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dataToSend: any,
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force = false
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): void {
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if (this._logger.enabledFor(Logger.WARN) && eventName !== "StatusUpdate") {
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this._logger.debug("emitting", eventName, dataToSend);
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}
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if (this._useInternalEmitter || force) {
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// Emit the Event on the internal Layer.
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this._internalEmitter.emit(eventName, dataToSend);
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}
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const _this = this;
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const _method = UNSPECIFIC_TO_METHODS[eventName].emit;
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// Iterate over the Layers.
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for (const data of this._layers.values()) {
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// If the Layer has been conneced
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if (data.layer !== toExclude && data.layer.connected.getContent()) {
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// Only Publish the Data, on which we are forwarding
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data.layer[_method as any](dataToSend).catch((error) => {
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_this._logger.error("failed executing", _method);
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_this._logger.error(error);
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});
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}
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}
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for (const mirror of this._mirrors.keys()) {
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if (mirror != toExclude && mirror.connected.getContent()) {
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mirror.emit(eventName, dataToSend);
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}
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}
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}
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protected _emitSpecific(
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method: keyof ICommunicationInterface,
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toExclude: ICommunicationInterface | ICommunicationMirror = null,
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event: string,
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dataToSend: any,
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force = false
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): void {
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const eventToUse = LAYER_METHOD_TO_EVENT[method] + event;
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if (this._logger.enabledFor(Logger.DEBUG) && event !== "StatusUpdate") {
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this._logger.debug("emitting", eventToUse, dataToSend);
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}
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// Emit the Event on the internal Layer.
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if (this._useInternalEmitter || force) {
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this._internalEmitter.emit(eventToUse, dataToSend);
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}
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const _this = this;
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// Iterate over the Layers.
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for (const data of this._layers.values()) {
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// If the Layer has been conneced
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if (data.layer !== toExclude && data.layer.connected.getContent()) {
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data.layer[method as any](eventToUse, dataToSend).catch((error) => {
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_this._logger.error("failed executing", method);
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_this._logger.error(error);
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});
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}
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}
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for (const mirror of this._mirrors.keys()) {
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if (mirror != toExclude && mirror.connected.getContent()) {
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mirror.emit(MIRROR_METHOD_TO_EVENT[method], {
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// Because we will adapt the event again (see "addMirror" -> it is calling "_emitSpecific"
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// which will cause some falsy behavior.)
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name: event,
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data: dataToSend
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});
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}
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}
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}
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public async addLayer(
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layer: ICommunicationInterface,
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|
forwardData = false,
|
|
considerConnection = false
|
|
): Promise<void> {
|
|
if (!this._layers.has(layer.id)) {
|
|
// Store the Layers:
|
|
this._layers.set(layer.id, {
|
|
layer,
|
|
considerConnection,
|
|
forwardData
|
|
});
|
|
|
|
// Forward the Events of the Layer
|
|
// being connected to our aggregated
|
|
// state
|
|
const _this = this;
|
|
layer.connected.subscribe(() => {
|
|
_this.connected.forcePublish();
|
|
});
|
|
|
|
// Wait until the Layer is connected.
|
|
await layer.connected.waitFor((value) => value);
|
|
|
|
// Register all know unspecific methods
|
|
for (const [method, cbs] of this._callbacks.entries()) {
|
|
for (const callback of cbs) {
|
|
layer[method as any](callback);
|
|
}
|
|
}
|
|
|
|
// Register all know specific methods
|
|
for (const { method, event, callback } of this._specificCallbacks) {
|
|
layer[method as any](event, callback);
|
|
}
|
|
|
|
this._checkInternalEmitter();
|
|
}
|
|
}
|
|
|
|
public async removeLayer(layer: ICommunicationInterface): Promise<void> {
|
|
if (this._layers.has(layer.id)) {
|
|
this._layers.delete(layer.id);
|
|
|
|
this._checkInternalEmitter();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Adds a Mirror to the System.
|
|
*
|
|
* @param {IEmitter} mirror the Mirror to use.
|
|
* @return {*} {Promise<void>}
|
|
* @memberof Bridge
|
|
*/
|
|
public addMirror(
|
|
mirror: ICommunicationMirror,
|
|
considerConnection = true
|
|
): void {
|
|
if (!this._mirrors.has(mirror)) {
|
|
// Add the Mirror
|
|
this._mirrors.set(mirror, {
|
|
considerConnection
|
|
});
|
|
|
|
const _this = this;
|
|
|
|
// Subscribe for the Connected Flag.
|
|
if (considerConnection) {
|
|
// We just forward the Signal
|
|
mirror.connected.subscribe(() => _this.connected.forcePublish());
|
|
}
|
|
|
|
// Now we wait until the connection has been established first time,
|
|
// then, we will add our subscriptions.
|
|
mirror.connected
|
|
.waitFor((value) => value)
|
|
.then(() => {
|
|
for (const eventName of ValidEventTypesOfMirror) {
|
|
if (UNSPECIFIC_TO_METHODS[eventName]) {
|
|
mirror.on(eventName as ValidEventTypesOfMirror, (data) => {
|
|
// Unless it is a Status-Update, we will log it.
|
|
if (
|
|
_this._logger.enabledFor(Logger.DEBUG) &&
|
|
eventName !== "StatusUpdate"
|
|
) {
|
|
_this._logger.debug(
|
|
"received data from mirror on",
|
|
eventName,
|
|
". Forwarding event to",
|
|
UNSPECIFIC_TO_METHODS[eventName].emit
|
|
);
|
|
}
|
|
|
|
// Now Forward the Data.
|
|
_this._emit(eventName, mirror, data, true);
|
|
});
|
|
} else {
|
|
mirror.on(eventName as ValidEventTypesOfMirror, (data) => {
|
|
// If logging is enabled => Forward this information
|
|
if (
|
|
_this._logger.enabledFor(Logger.DEBUG) &&
|
|
eventName !== "StatusUpdate"
|
|
) {
|
|
_this._logger.debug(
|
|
"received data from mirror on",
|
|
eventName,
|
|
data.name
|
|
);
|
|
}
|
|
|
|
// Now emit the data on the channel
|
|
_this._emitSpecific(
|
|
MIRROR_EVENT_TO_EMIT[eventName],
|
|
mirror,
|
|
data.name,
|
|
data.data,
|
|
true
|
|
);
|
|
});
|
|
}
|
|
}
|
|
});
|
|
|
|
this._checkInternalEmitter();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Removes a Mirror, from the system.
|
|
*
|
|
* @param {ICommunicationMirror} mirror
|
|
* @return {*} {boolean}
|
|
* @memberof Bridge
|
|
*/
|
|
public removeMirror(mirror: ICommunicationMirror): boolean {
|
|
let removed = false;
|
|
if (this._mirrors.has(mirror)) {
|
|
this._mirrors.delete(mirror);
|
|
this._checkInternalEmitter();
|
|
|
|
removed = true;
|
|
}
|
|
|
|
return removed;
|
|
}
|
|
|
|
// Implement the Default behavior of a Bridge.
|
|
// All the Methods below will be implemented
|
|
// during the initalization. So if something
|
|
// fails => an Error is thrown.
|
|
|
|
emitExecutingTasks(data: IExecutingTaskMsg): Promise<void> {
|
|
throw new Error("Method should be overwritten.");
|
|
}
|
|
onExecutingTasks(cb: (data: IExecutingTaskMsg) => void): Promise<void> {
|
|
throw new Error("Method should be overwritten.");
|
|
}
|
|
emitUnregisterRpc(data: IRpcUnregisterMsg): Promise<void> {
|
|
throw new Error("Method should be overwritten.");
|
|
}
|
|
onUnregisterRpc(cb: (data: IRpcUnregisterMsg) => void): Promise<void> {
|
|
throw new Error("Method should be overwritten.");
|
|
}
|
|
emitStatusUpdate(status: IDispatcherInfo): Promise<void> {
|
|
throw new Error("Method should be overwritten.");
|
|
}
|
|
onStatusUpdate(cb: (status: IDispatcherInfo) => void): Promise<void> {
|
|
throw new Error("Method should be overwritten.");
|
|
}
|
|
emitRpcRequest(name: string, request: IRequestTaskMsg): Promise<void> {
|
|
throw new Error("Method should be overwritten.");
|
|
}
|
|
emitRpcResponse(name: string, result: IResponseTaskMsg): Promise<void> {
|
|
throw new Error("Method should be overwritten.");
|
|
}
|
|
onRpcResponse(
|
|
name: string,
|
|
cb: (result: IResponseTaskMsg) => void
|
|
): Promise<void> {
|
|
throw new Error("Method should be overwritten.");
|
|
}
|
|
offRpcResponse(
|
|
name: string,
|
|
cb: (result: IResponseTaskMsg) => void
|
|
): Promise<void> {
|
|
throw new Error("Method should be overwritten.");
|
|
}
|
|
onRpcRequest(
|
|
name: string,
|
|
cb: (data: IRequestTaskMsg) => void
|
|
): Promise<void> {
|
|
throw new Error("Method should be overwritten.");
|
|
}
|
|
offRpcRequest(
|
|
name: string,
|
|
cb: (data: IRequestTaskMsg) => void
|
|
): Promise<void> {
|
|
throw new Error("Method should be overwritten.");
|
|
}
|
|
emitNewServicesAvailable(services: IAvailableServicesMsg): Promise<void> {
|
|
throw new Error("Method should be overwritten.");
|
|
}
|
|
onNewServicesAvailable(
|
|
cb: (services: IAvailableServicesMsg) => void
|
|
): Promise<void> {
|
|
throw new Error("Method should be overwritten.");
|
|
}
|
|
emitNewObservablesAvailable(topics: IAvailableTopicsMsg): Promise<void> {
|
|
throw new Error("Method should be overwritten.");
|
|
}
|
|
onNewObservablesAvailable(
|
|
cb: (topics: IAvailableTopicsMsg) => void
|
|
): Promise<void> {
|
|
throw new Error("Method should be overwritten.");
|
|
}
|
|
onEvent(event: string, cb: (data: IExternalEventMsg) => void): Promise<void> {
|
|
throw new Error("Method should be overwritten.");
|
|
}
|
|
emitEvent(event: string, data: IExternalEventMsg): Promise<void> {
|
|
throw new Error("Method should be overwritten.");
|
|
}
|
|
offEvent(
|
|
event: string,
|
|
cb: (data: IExternalEventMsg) => void
|
|
): Promise<void> {
|
|
throw new Error("Method should be overwritten.");
|
|
}
|
|
onBonjour(cb: (msg: IDispatcherInfo) => void): Promise<void> {
|
|
throw new Error("Method should be overwritten.");
|
|
}
|
|
emitBonjour(msg: IDispatcherInfo): Promise<void> {
|
|
throw new Error("Method should be overwritten.");
|
|
}
|
|
onAurevoir(cb: (dispatcher: string) => void): Promise<void> {
|
|
throw new Error("Method should be overwritten.");
|
|
}
|
|
emitAurevoir(dispatcher: string): Promise<void> {
|
|
throw new Error("Method should be overwritten.");
|
|
}
|
|
onTaskCancelation(cb: (msg: ITaskCancelationMsg) => void): Promise<void> {
|
|
throw new Error("Method should be overwritten.");
|
|
}
|
|
emitTaskCancelation(msg: ITaskCancelationMsg): Promise<void> {
|
|
throw new Error("Method should be overwritten.");
|
|
}
|
|
emitNewInstanceGeneratorsAvailable(
|
|
creators: IAvailableInstanceGeneratorsMsg
|
|
): Promise<void> {
|
|
throw new Error("Method should be overwritten.");
|
|
}
|
|
onNewInstanceGeneratorsAvailable(
|
|
cb: (creators: IAvailableInstanceGeneratorsMsg) => void
|
|
): Promise<void> {
|
|
throw new Error("Method should be overwritten.");
|
|
}
|
|
onNewInstancesAvailable(
|
|
cb: (instances: IAvailableInstancesMsg) => void
|
|
): Promise<void> {
|
|
throw new Error("Method should be overwritten.");
|
|
}
|
|
emitNewInstancesAvailable(instances: IAvailableInstancesMsg): Promise<void> {
|
|
throw new Error("Method should be overwritten.");
|
|
}
|
|
}
|