import { ConnectivityProvider } from "@sap/service-provider-apis";
import { DataProductRetriever, DataProduct, DataProductService, DataProductServiceMetadata } from "../type/interfaces";
import { UclPackageProviderSystem } from "../providers/uclPackageProviderSystem";
import { UclDataProductService } from "../type/dataProduct";
import { UclSystemProviderSystem } from "../providers/uclSystemProviderSystem";
export declare class UclDataProductRetriever implements DataProductRetriever {
    private static instance;
    readonly connectivityProvider: ConnectivityProvider;
    readonly uclBaseUrl: string;
    constructor(connectivityProvider: ConnectivityProvider, uclBaseUrl: string);
    static getSingletonInstance(connectivityProvider: ConnectivityProvider, uclBaseUrl: string): UclDataProductRetriever;
    retrieveDataProductSystems(): Promise<UclSystemProviderSystem[]>;
    retrieveDataProductsPackages(systemId: string): Promise<UclPackageProviderSystem[]>;
    retrieveDataProducts(packageId: string): Promise<DataProduct[]>;
    retrieveDataProductsFromSystem(systemId: string): Promise<DataProduct[]>;
    retrieveDataProductService(systemId: string, dataProduct: DataProduct): Promise<UclDataProductService>;
    retrieveDataProductServiceMetadata(dataProductService: DataProductService): Promise<DataProductServiceMetadata>;
    private retrieveDataProductsByUrl;
}