import { ComposedMetricMapping, ComposedMetricMappingSpec, SloTarget } from '../../../../model';
import { ObjectKindWatcherError, WatchEventsHandler } from '../../../../orchestrator';
import { ComposedMetricComputationConfig, ComposedMetricsManager } from '../composed-metrics-manager';
/**
 * Concrete `WatchEventsHandler` subinterface for `ComposedMetricMappings`.
 */
export interface ComposedMetricMappingWatchEventsHandler extends WatchEventsHandler<ComposedMetricMapping> {
}
/**
 * {@link ComposedMetricsManager} extension that allows adding and removing composed metric mappings.
 */
export interface ModifiableComposedMetricsManager extends ComposedMetricsManager {
    /**
     * Adds the specified {@link ComposedMetricMapping} to this manager to periodically compute the metric.
     *
     * @param mapping The {@link ComposedMetricMapping} to be added.
     * @param computationConfig The {@link ComposedMetricComputationConfig} for the mapping's composed metric type.
     */
    addComposedMetricMapping(mapping: ComposedMetricMapping, computationConfig: ComposedMetricComputationConfig): void;
    /**
     * Removes the {@link ComposedMetricMapping} with the specified `key`.
     *
     * @param key The {@link ComposedMetricMapping} to be deleted (identified through its metadata).
     */
    removeComposedMetricMapping(mapping: ComposedMetricMapping): void;
}
/**
 * Receives watch events for a {@link ComposedMetricMapping} and communicates them to the `ComposedMetricsManager`.
 *
 * If `supportedSloTargetKinds` is configured on the {@link ComposedMetricComputationConfig}, only mappings
 * with matching `SloTarget` types will be passed to the `ComposedMetricsManager`.
 */
export declare class DefaultComposedMetricMappingWatchEventsHandler implements ComposedMetricMappingWatchEventsHandler {
    private manager;
    private computationConfig;
    /**
     * If set, only ComposedMetricMappings that have one of these object kinds will be passed on,
     * the others will be ignored.
     */
    private supportedSloTargetKinds?;
    /**
     * Creates a new `DefaultComposedMetricMappingWatchEventsHandler`.
     *
     * @param manager The {@link ModifiableComposedMetricsManager} that should be triggered by this watch events handler.
     * @param computationConfig The {@link ComposedMetricComputationConfig} that should be supplied with every mapping.
     */
    constructor(manager: ModifiableComposedMetricsManager, computationConfig: ComposedMetricComputationConfig<any>);
    onObjectAdded(obj: ComposedMetricMapping<ComposedMetricMappingSpec<any, SloTarget>>): void;
    onObjectModified(obj: ComposedMetricMapping<ComposedMetricMappingSpec<any, SloTarget>>): void;
    onObjectDeleted(obj: ComposedMetricMapping<ComposedMetricMappingSpec<any, SloTarget>>): void;
    onError(error: ObjectKindWatcherError): void;
    private isSloTargetSupported;
}