import * as rx from 'rxjs';
import { IDynamicProperty, IConfigurationSource, IRemoteConfigurationSource, DataSource } from './abstractions';
import { DynamicProperty } from './properties/dynamicProperty';
import { ChainedDynamicProperty } from './properties/chainedPropertyValue';
export declare class ConfigurationManager {
    pollingIntervalInSeconds: number;
    sourceTimeoutInMs: number;
    isRunning: boolean;
    private _values;
    private _dynamicProperties;
    private disposed;
    private _propertyChanged;
    private _environmentVariables;
    readonly properties: Map<string, IDynamicProperty<any>>;
    readonly propertyChanged: rx.Observable<IDynamicProperty<any>>;
    constructor(pollingIntervalInSeconds?: number, sourceTimeoutInMs?: number);
    getValueInSources(name: string): any;
    createDynamicProperty<T>(name: string, defaultValue?: T): DynamicProperty<T>;
    createChainedDynamicProperty<T>(name: string, properties: Array<string>, defaultValue?: T): DynamicProperty<T> | ChainedDynamicProperty<T>;
    getValueFromEnvironmentVariable<T>(name: string): T;
    getProperty<T>(name: string): IDynamicProperty<T>;
    /**
 * Initialize source(s) and return only when all sources are initialized
 * @param sources List of sources
 * @returns {Promise<T>}
 */
    startPolling(sources?: IConfigurationSource | Array<IConfigurationSource>, pollSources?: boolean): Promise<void>;
    /**
     * for test only
     */
    forcePolling(src?: IRemoteConfigurationSource, reset?: boolean): Promise<void>;
    /**
     * Pull properties for all sources
     *
     * @private
     * @param {any} [timeout]
     * @returns
     *
     * @memberOf ConfigurationManager
     */
    polling(timeout?: number, pollSources?: boolean): Promise<boolean>;
    onPropertiesChanged(data: DataSource): void;
    onPropertyChanged(dp: IDynamicProperty<any>): void;
    private repeatPolling();
    /**
 /// Reset configuration and properties.
 /// All current properties will be invalid and all current sources will be lost.
 /// </summary>
 /// <param name="pollingIntervalInSeconds"></param>
 /// <param name="sourceTimeoutInMs"></param>
 */
    reset(pollingIntervalInSeconds?: number, sourceTimeoutInMs?: number): void;
    dispose(): void;
}