/// <reference types="node" />
/// <reference types="node" />
import * as Transport from 'winston-transport';
import { Writable } from 'stream';
import { AgentConfig } from './config-process/config';
import { Logger } from './contracts';
interface IBufferingLoggerConfig {
    bufferLength?: number;
}
export declare enum LogLevels {
    LIFECYCLE = "lifecycle",
    ERROR = "error",
    WARN = "warn",
    INFO = "info",
    HTTP = "http",
    VERBOSE = "verbose",
    DEBUG = "debug",
    SILLY = "silly",
    OFF = "off"
}
export declare class LoggerFactory {
    private static bufferingLogger;
    private static logger;
    private static subprocessLogger;
    private constructor();
    static getCreateBufferingLogger(): BufferingLogger;
    static getCreateApplicationLogger(cfg?: AgentConfig): Logger;
    static getCreateDebugFileLogger(filename: string): Logger;
    static getCreateSubprocessLogger(subprocess: NodeJS.Process): Logger;
    static reset(): void;
    private static createLogger;
}
export declare class BufferingLogger extends Writable {
    private config;
    private buffer;
    private bufferLength;
    constructor(config: IBufferingLoggerConfig);
    write(data: any): boolean;
    processBuffer(): boolean;
    private acceptLogs;
    stop(): void;
    checkBuffer(inShutdown: boolean): boolean;
}
export declare class IpcTransport extends Transport {
    private subprocess;
    constructor(subprocess: NodeJS.Process, options?: Transport.TransportStreamOptions);
    log(info: any, callback: any): void;
}
export {};