de.fraunhofer.iese.ind2uce.api.component.interfaces

Interface IPolicyInformationPoint

All Superinterfaces:

IComponent, Serializable

public interface IPolicyInformationPoint
extends IComponent

Policy Information Points provide additional information used by PDPs.

Author:

Fraunhofer IESE

Method Summary

Modifier and Type	Method and Description
DataObject<?>	evaluate(PipRequest<?> request) Evaluates a certain method or condition.
String	initialize(String method, List<Parameter<?>> parameters) Initializes a certain method or condition evaluation.

Methods inherited from interface de.fraunhofer.iese.ind2uce.api.component.interfaces.IComponent

getHealth, getId, initialize, reset

Method Detail

evaluate

DataObject<?> evaluate(PipRequest<?> request)
                throws IOException,
                       InformationUndeterminableException

Evaluates a certain method or condition.

Parameters:

request - Object which contains detailed information (context name and its parameters) about the PIP request

Returns:

A DataObject containing the evaluation result and the evaluation result type. In case of an error, the default value (specified in the PipRequest object) will be returned.

Throws:

IOException - if communication is failed

InformationUndeterminableException - if sent PIP request is semantically not processable by PIP

initialize

String initialize(String method,
                  List<Parameter<?>> parameters)
           throws IOException,
                  InitializationException

Initializes a certain method or condition evaluation.

Parameters:

method - the method to be initializes, e.g. deployContext or initialRepresentation

parameters - optional parameters for the method

Returns:

Return value depends on the method, e.g. initialRepresentation

Throws:

IOException - throws if there is a communication problem

InitializationException - problem occurs at the time of initialization