import { IIAMService, IIdentity } from '@essential-projects/iam_contracts';
import { APIs, DataModels } from '@process-engine/management_api_contracts';
import { ILoggingApi } from '@process-engine/logging_api_contracts';
import { IFlowNodeInstanceRepository } from '@process-engine/persistence_api.contracts';
export declare class KpiService implements APIs.IKpiManagementApi {
    private iamService;
    private flowNodeInstanceRepository;
    private loggingService;
    constructor(flowNodeInstanceRepository: IFlowNodeInstanceRepository, iamService: IIAMService, loggingService: ILoggingApi);
    getRuntimeInformationForProcessModel(identity: IIdentity, processModelId: string, offset?: number, limit?: number): Promise<DataModels.Kpi.FlowNodeRuntimeInformationList>;
    getRuntimeInformationForFlowNode(identity: IIdentity, processModelId: string, flowNodeId: string): Promise<DataModels.Kpi.FlowNodeRuntimeInformation>;
    getActiveTokensForProcessModel(identity: IIdentity, processModelId: string, offset?: number, limit?: number): Promise<DataModels.Kpi.ActiveTokenList>;
    getActiveTokensForCorrelationAndProcessModel(identity: IIdentity, correlationId: string, processModelId: string, offset?: number, limit?: number): Promise<DataModels.Kpi.ActiveTokenList>;
    getActiveTokensForProcessInstance(identity: IIdentity, processInstanceId: string, offset?: number, limit?: number): Promise<DataModels.Kpi.ActiveTokenList>;
    getActiveTokensForFlowNode(identity: IIdentity, flowNodeId: string, offset?: number, limit?: number): Promise<DataModels.Kpi.ActiveTokenList>;
    /**
     * Array-Filter that checks if a given log entry is suitable for including
     * it into the runtime calculations.
     *
     * First, it determines if the log was recorded when the FlowNodeInstance
     * was finished. If so, it is a valid log entry.
     *
     * If it is a log that was recorded at the beginnng of a FlowNodeInstance
     * execution, the function checks if a corresponding exiting log exists.
     *
     * If one is found, the log is suitable for including it with runtime
     * calculation.
     *
     * If no matching exiting log could be found, then this likely means the
     * FlowNodeInstance is still running. The log will not be included in the
     * calculations.
     *
     * @param   logToCheck      The log to validate.
     * @param   logIndex        The index the log has in the given Array.
     * @param   allFlowNodeLogs The full Array that is curently being filtered.
     * @returns                    True, if the log belongs to a finished
     *                             FlowNodeInstance, otherwise false.
     */
    private logBelongsToFinishedFlowNodeInstance;
    private groupFlowNodeInstancesByFlowNodeId;
    private createFlowNodeRuntimeInformation;
    private groupLogsByFlowNodeInstance;
    private calculateRuntimeForFlowNodeInstance;
    private calculateQuartiles;
    private calculateFlowNodeArithmeticMeanRuntime;
    private isFlowNodeInstanceActive;
    private createActiveTokenInfoForFlowNodeInstance;
}