import { ILoadbalance, IServer, ILoadbalancer, IService, Scanner } from '@nestcloud/common';
import { OnModuleInit } from '@nestjs/common';
import { LoadbalanceChecker } from './loadbalance.checker';
import { LoadbalanceRuleRegistry } from './loadbalance-rule.registry';
import { LoadbalanceConfig } from './loadbalance.config';
export declare class Loadbalance implements ILoadbalance, OnModuleInit {
    private readonly config;
    private readonly scanner;
    private readonly loadbalanceChecker;
    private readonly loadbalanceRuleRegistry;
    private readonly service;
    private readonly loadbalancers;
    private timer;
    constructor(config: LoadbalanceConfig, scanner: Scanner, loadbalanceChecker: LoadbalanceChecker, loadbalanceRuleRegistry: LoadbalanceRuleRegistry, service: IService);
    onModuleInit(): Promise<void>;
    private init;
    chooseLoadbalancer(serviceName: string): ILoadbalancer;
    choose(serviceName: string): IServer;
    state(): {
        [service: string]: IServer[];
    };
    private updateServices;
    private createServiceWatcher;
    private createLoadbalancer;
    private pingServers;
}