import type { IAction, IActorArgs, IActorOutput, IActorTest, Mediate, TestResult } from '@comunica/core';
import { Actor } from '@comunica/core';
import type { IQuerySource } from '@comunica/types';
import type * as RDF from '@rdfjs/types';
/**
 * A comunica actor for query-source-identify-hypermedia events.
 *
 * Actor types:
 * * Input:  IActionQuerySourceIdentifyHypermedia:      The metadata in the document and a query operation.
 * * Test:   <none>
 * * Output: IActorQuerySourceIdentifyHypermediaOutput: A query source.
 *
 * @see IActionQuerySourceIdentifyHypermedia
 * @see IActorQuerySourceIdentifyHypermediaOutput
 */
export declare abstract class ActorQuerySourceIdentifyHypermedia<TS = undefined> extends Actor<IActionQuerySourceIdentifyHypermedia, IActorQuerySourceIdentifyHypermediaTest, IActorQuerySourceIdentifyHypermediaOutput, TS> {
    protected readonly sourceType: string;
    /**
     * @param args -
     *   \ @defaultNested {<default_bus> a <cc:components/Bus.jsonld#Bus>} bus
     *   \ @defaultNested {Query source hypermedia identification failed: none of the configured actors were able to identify ${action.url}} busFailMessage
     * @param sourceType The source type.
     */
    constructor(args: IActorQuerySourceIdentifyHypermediaArgs<TS>, sourceType: string);
    test(action: IActionQuerySourceIdentifyHypermedia): Promise<TestResult<IActorQuerySourceIdentifyHypermediaTest, TS>>;
    abstract testMetadata(action: IActionQuerySourceIdentifyHypermedia): Promise<TestResult<IActorQuerySourceIdentifyHypermediaTest, TS>>;
}
export interface IActionQuerySourceIdentifyHypermedia extends IAction {
    /**
     * The URL of the source that was fetched.
     */
    url: string;
    /**
     * A metadata key-value mapping.
     */
    metadata: Record<string, any>;
    /**
     * A stream of data quads.
     */
    quads: RDF.Stream;
    /**
     * A hash of all datasets that have been handled.
     */
    handledDatasets?: Record<string, boolean>;
    /**
     * The explicitly requested source type.
     * If set, the source type of the actor MUST explicitly match the given forced type.
     */
    forceSourceType?: string;
}
export interface IActorQuerySourceIdentifyHypermediaTest extends IActorTest {
    /**
     * A value from 0 to 1 indicating to what respect a source type is
     * able to pre-filter the source based on the pattern.
     * 1 indicates that the source can apply the whole pattern,
     * and 0 indicates that the source can not apply the pattern at all (and local filtering must happen).
     */
    filterFactor: number;
}
export interface IActorQuerySourceIdentifyHypermediaOutput extends IActorOutput {
    /**
     * The new source of quads contained in the document.
     */
    source: IQuerySource;
    /**
     * The dataset that was handled.
     */
    dataset?: string;
}
export type IActorQuerySourceIdentifyHypermediaArgs<TS = undefined> = IActorArgs<IActionQuerySourceIdentifyHypermedia, IActorQuerySourceIdentifyHypermediaTest, IActorQuerySourceIdentifyHypermediaOutput, TS>;
export type MediatorQuerySourceIdentifyHypermedia = Mediate<IActionQuerySourceIdentifyHypermedia, IActorQuerySourceIdentifyHypermediaOutput, IActorQuerySourceIdentifyHypermediaTest>;