import { MessageProperties } from 'amqplib';
import { BaseEntity, Constructor } from '../../entities/core-entities/index.js';
import { IEntityHandler, IFeed, MQSettingsOptions } from '..';
import { ILogger } from '../../logger';
/**
 * Class that represent all the abilities of rabbitmq instance
 * to consume messages and handle them with all the configured
 * desired handlers for entities types and process them with
 * the entityHandler call-back function for the entityConstructor
 * class type entity type and process them with the entityHandler
 * call-back function for the entityConstructor class type entity type
 * @implements IFeed interface that represent Feed implementation for
 * the feed service to consume messages, process connect creation,
 * attach listeners for reconnection and consumption process and
 * handle them with all the configured desired handlers for entities
 * types
 */
declare class RabbitMQFeed implements IFeed {
    private mqSettings;
    private logger;
    private requestQueue;
    private connection;
    private channel;
    private consumerTag;
    private isConnected;
    private stopTryReconnect;
    private readonly reconnectionLock;
    private isReconnecting;
    private readonly consumer;
    constructor(mqSettings: MQSettingsOptions, logger?: ILogger);
    setLogger(logger: ILogger): void;
    getLogger(): ILogger;
    start(): Promise<void>;
    /**
     * establish connection to rabbitmq
     */
    private connect;
    /**
     * attach listeners for desire invoked events
     */
    private attachListeners;
    /**
     * handle close event invoke for rabbitmq instance
     * handle reconnection option
     */
    private connectionClosedHandler;
    /**
     * handle error event invoke for rabbitmq instance
     * connection error
     * @param err error been thrown from the connection
     * instance of rabbitmq instance connection error
     * event invoke handler method call back function
     * @returns void
     */
    private connectionErrorHandler;
    /**
     * get the message timestamp from the message properties
     * @param msgProperties the message properties
     * @returns the message timestamp in milliseconds
     */
    getMessageMqTimestamp(msgProperties: MessageProperties): number | undefined;
    stop(): Promise<void>;
    addEntityHandler<TEntity extends BaseEntity>(entityHandler: IEntityHandler<TEntity>, entityConstructor: Constructor<TEntity>): Promise<void>;
}
export = RabbitMQFeed;