import { IDataSourceConfig, TDataSource, TDataSourceItem, IPart, IDataItem, ServiceContext, TDataMap, TDataKeyToPartIdsMap, ApiRequestPolicy } from '../../types';
import { Base } from '../base';
import { IDataService } from '../../interface';
/**
 * 数据服务类
 */
export declare class Data extends Base implements IDataService {
    #private;
    dataMap: TDataMap;
    plans: string[];
    currPlan: string;
    apiRequestPolicy: ApiRequestPolicy;
    constructor();
    /**
     * 初始化数据服务
     * @param parts 组件列表
     * @param dataSourceObj 数据源配置
     * @param dataPlan 数据计划
     * @param apiProxyUrl API代理URL
     * @returns {TDataMap}
     */
    init({ parts, dataSources, dataPlan, dataMap }: {
        parts: IPart[];
        dataSources: TDataSource;
        dataPlan?: string;
        apiProxyUrl?: string;
        dataMap?: TDataMap;
    }): Promise<TDataMap>;
    update(dataSources: IDataSourceConfig): Promise<void>;
    setApiRequestPolicy(policy: ApiRequestPolicy): void;
    changePlan(dataPlan: string): void;
    getDataByPartId(partId: string): any;
    /**
     * 根据partId获取数据键
     * @param partId 组件partId
     * @returns {string | null} 对应的数据键
     */
    getDataKeyByPartId(partId: string): string | null;
    getDataSourceByPartId(id: string): TDataSourceItem | undefined;
    getDataKeyToPartIdsMap(parts: IPart[]): TDataKeyToPartIdsMap;
    findPartByKey(items: IPart[], key: string): IPart | undefined;
    getData(dataSource: TDataSourceItem, dataKey?: string): Promise<any>;
    dynamicFetch(partId: string, dataKey: string, dataSourceItem?: TDataSourceItem): Promise<any>;
    convert(data: any, dataItem: IDataItem, id: string, context?: ServiceContext): Promise<any>;
}
declare const data: Data;
export default data;