import { LogLevel, ILogger } from '@arashi/interfaces';
import { Readable } from 'stream';
import { ILogObject } from './ILogObject';
export declare class BaseLogger extends Readable implements ILogger {
    private $filters;
    private $logLevel;
    private $serviceName;
    private $shouldWaitForRead;
    private $buffer;
    constructor(serviceName: string, logLevel: LogLevel);
    setLogLevel(level: LogLevel): void;
    getLogLevel(): LogLevel;
    addFilter(reg: RegExp): void;
    removeFilter(reg: RegExp): void;
    setFilters(filters: RegExp[]): void;
    getFilters(): RegExp[];
    protected _getDefaultLogFilters(): RegExp[];
    protected _formatDate(now: Date): string;
    protected _shouldFilter(message: any): boolean;
    private $parseMessage;
    _read(size: number): void;
    protected _log(lo: ILogObject): boolean;
    protected _shouldLog(lo: ILogObject): boolean;
    log(level: LogLevel, component: string, message: any, metadata?: Record<any, any>): void;
    logObject(lo: ILogObject): void;
    trace(component: string, message: any, metadata?: Record<any, any>): void;
    silly(component: string, message: any, metadata?: Record<any, any>): void;
    debug(component: string, message: any, metadata?: Record<any, any>): void;
    verbose(component: string, message: any, metadata?: Record<any, any>): void;
    info(component: string, message: any, metadata?: Record<any, any>): void;
    warn(component: string, message: any, metadata?: Record<any, any>): void;
    error(component: string, message: any, metadata?: Record<any, any>): void;
    deprecate(component: string, alternative?: string, methodOverride?: string): void;
    deprecateParameterType(component: string, argumentLocation: number, deprecatedType: string, alternative?: string): void;
    private $getDeprecatedMethodMessage;
    private $getDeprecatedAlternativeMessage;
    private $getDeprecatedParameterMethodMessage;
    private $getDeprecatedParameterAlternativeMessage;
    protected _onDestroy(): void;
    _destroy(error: Error | null, callback: (error?: Error) => void): void;
}