Revision 5fa11c9eaefdfc2c3b35fb95646d53be67a5341a authored by Andrey Zhavoronkov on 12 June 2023, 04:44:14 UTC, committed by GitHub on 12 June 2023, 04:44:14 UTC
1 parent 5f588ed
lambda-manager.ts
// Copyright (C) 2019-2022 Intel Corporation
// Copyright (C) 2022-2023 CVAT.ai Corporation
//
// SPDX-License-Identifier: MIT
import serverProxy from './server-proxy';
import { ArgumentError } from './exceptions';
import MLModel from './ml-model';
import { ModelProviders, RQStatus } from './enums';
export interface ModelProvider {
name: string;
icon: string;
attributes: Record<string, string>;
}
interface ModelProxy {
run: (body: any) => Promise<any>;
call: (modelID: string | number, body: any) => Promise<any>;
status: (requestID: string) => Promise<any>;
cancel: (requestID: string) => Promise<any>;
}
class LambdaManager {
private listening: any;
private cachedList: any;
constructor() {
this.listening = {};
this.cachedList = null;
}
async list(): Promise<{ models: MLModel[], count: number }> {
const lambdaFunctions = await serverProxy.lambda.list();
const functionsResult = await serverProxy.functions.list();
const { results: functions, count: functionsCount } = functionsResult;
const result = [...lambdaFunctions, ...functions];
const models = [];
for (const model of result) {
models.push(
new MLModel({
...model,
}),
);
}
this.cachedList = models;
return { models, count: lambdaFunctions.length + functionsCount };
}
async run(taskID: number, model: MLModel, args: any) {
if (!Number.isInteger(taskID) || taskID < 0) {
throw new ArgumentError(`Argument taskID must be a positive integer. Got "${taskID}"`);
}
if (!(model instanceof MLModel)) {
throw new ArgumentError(
`Argument model is expected to be an instance of MLModel class, but got ${typeof model}`,
);
}
if (args && typeof args !== 'object') {
throw new ArgumentError(`Argument args is expected to be an object, but got ${typeof model}`);
}
const body = {
...args,
task: taskID,
function: model.id,
};
const result = await LambdaManager.getModelProxy(model).run(body);
return result.id;
}
async call(taskID, model, args) {
if (!Number.isInteger(taskID) || taskID < 0) {
throw new ArgumentError(`Argument taskID must be a positive integer. Got "${taskID}"`);
}
const body = {
...args,
task: taskID,
};
const result = await LambdaManager.getModelProxy(model).call(model.id, body);
return result;
}
async requests() {
const lambdaRequests = await serverProxy.lambda.requests();
const functionsRequests = await serverProxy.functions.requests();
const result = [...lambdaRequests, ...functionsRequests];
return result.filter((request) => ['queued', 'started'].includes(request.status));
}
async cancel(requestID, functionID): Promise<void> {
if (typeof requestID !== 'string') {
throw new ArgumentError(`Request id argument is required to be a string. But got ${requestID}`);
}
const model = this.cachedList.find((_model) => _model.id === functionID);
if (!model) {
throw new ArgumentError('Incorrect Function Id provided');
}
if (this.listening[requestID]) {
clearTimeout(this.listening[requestID].timeout);
delete this.listening[requestID];
}
await LambdaManager.getModelProxy(model).cancel(requestID);
}
async listen(requestID, functionID, onUpdate): Promise<void> {
const model = this.cachedList.find((_model) => _model.id === functionID);
if (!model) {
throw new ArgumentError('Incorrect Function Id provided');
}
const timeoutCallback = async (): Promise<void> => {
try {
this.listening[requestID].timeout = null;
const response = await LambdaManager.getModelProxy(model).status(requestID);
if (response.status === RQStatus.QUEUED || response.status === RQStatus.STARTED) {
onUpdate(response.status, response.progress || 0);
this.listening[requestID].timeout = setTimeout(timeoutCallback, 20000);
} else {
if (response.status === RQStatus.FINISHED) {
onUpdate(response.status, response.progress || 100);
} else {
onUpdate(response.status, response.progress || 0, response.exc_info || '');
}
delete this.listening[requestID];
}
} catch (error) {
onUpdate(
RQStatus.UNKNOWN,
0,
`Could not get a status of the request ${requestID}. ${error.toString()}`,
);
}
};
this.listening[requestID] = {
onUpdate,
functionID,
timeout: setTimeout(timeoutCallback, 20000),
};
}
async providers(): Promise<ModelProvider[]> {
const providersData: Record<string, Record<string, string>> = await serverProxy.functions.providers();
const providers = Object.entries(providersData).map(([provider, attributes]) => {
const { icon } = attributes;
delete attributes.icon;
return {
name: provider,
icon,
attributes,
};
});
return providers;
}
private static getModelProxy(model: MLModel): ModelProxy {
return model.provider === ModelProviders.CVAT ? serverProxy.lambda : serverProxy.functions;
}
}
export default new LambdaManager();
![swh spinner](/static/img/swh-spinner.gif)
Computing file changes ...