/// <reference types="node" />
import * as express from "express";
import * as fastify from 'fastify';
import * as http from 'http';
import { SettingOptions } from "./SettingOptions";
export declare class ApplicationLoader {
    private _server;
    private _handlerAdapter;
    private _loaderAdapter;
    private _env;
    private _rootDir?;
    private _files?;
    private _port;
    private _host;
    private _backlog;
    private _ext;
    private _lazyInit;
    readonly server: fastify.FastifyInstance<http.Server, http.IncomingMessage, http.ServerResponse> | express.Application;
    readonly env: string;
    readonly rootDir: string | undefined;
    readonly files: string | undefined;
    readonly port: string;
    readonly host: string;
    readonly backlog: number;
    private $onClose;
    /**
     * Load user defined settings into ApplicationLoader
     * Initialize settings
     */
    constructor(typeOrServer: string | fastify.FastifyInstance | express.Application, settings?: SettingOptions);
    private _loadComponents;
    private _initializeComponents;
    private _init;
    private _loadMiddlewares;
    private _loadControllers;
    private _loadErrorMiddlewares;
    start(): Promise<http.Server>;
    private _isExpress;
    private _isFastify;
}