ibspan.tss.agents.rsa.handlers
Class FindRestaurantHandler

java.lang.Object
  jade.core.behaviours.Behaviour
      jade.core.behaviours.SimpleBehaviour
          jade.core.behaviours.OneShotBehaviour
              ibspan.tss.messaging.RequestHandler
                  ibspan.tss.agents.rsa.handlers.FindRestaurantHandler

All Implemented Interfaces:

Serializable

public class FindRestaurantHandler
extends RequestHandler

This behaviour prepare response with list of restaurants fulfilling constraints given in the user request. More precisely, these constrains are given as the map of predicates (properties mapped into possible values -- one-to-one relation) passed as UserContext. Property should be defined as resource URI, whereas values as resource URI or simple literal.

The behaviour should be provided with two OntModels: model describing ontology of Restaurant domain and model containing database with restaurants to retrieve.

Author:

Maciej Gawinecki

See Also:

RestaurantServiceAgent, Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class jade.core.behaviours.Behaviour

Behaviour.RunnableChangedEvent

Field Summary

static int	DEFAULT_MAX_RESULTS
protected RestaurantServiceAgent	myAgent

Fields inherited from class jade.core.behaviours.Behaviour

myEvent, NOTIFY_DOWN, NOTIFY_UP, parent, STATE_BLOCKED, STATE_READY, STATE_RUNNING

Constructor Summary

FindRestaurantHandler(Agent a, DataStore ds, Object requestKey, Object actKey, Object notificationKey)
Constructs FindRestaurantHandler.

Method Summary

protected ACLMessage

prepareResponse(ACLMessage request, Action act) Returns response to the request.

Methods inherited from class ibspan.tss.messaging.RequestHandler

action

Methods inherited from class jade.core.behaviours.OneShotBehaviour

done

Methods inherited from class jade.core.behaviours.SimpleBehaviour

reset

Methods inherited from class jade.core.behaviours.Behaviour

actionWrapper, block, block, getBehaviourName, getDataStore, getExecutionState, getParent, handle, isRunnable, onEnd, onStart, restart, root, setAgent, setBehaviourName, setDataStore, setExecutionState

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

DEFAULT_MAX_RESULTS

public static final int DEFAULT_MAX_RESULTS

See Also:

Constant Field Values

myAgent

protected RestaurantServiceAgent myAgent

Constructor Detail

FindRestaurantHandler

public FindRestaurantHandler(Agent a,
                             DataStore ds,
                             Object requestKey,
                             Object actKey,
                             Object notificationKey)

Constructs FindRestaurantHandler.

Parameters:

a - owner agent

ds - data store

actKey - key for accessing action of user request from local Data Store

requestKey - key for accessing user request ACL message from local Data Store

notificationKey - key, pointing the place in local Data Store, where result of the Behaviour should put at

Method Detail

prepareResponse

protected final ACLMessage prepareResponse(ACLMessage request,
                                           Action act)
                                    throws FailureException

Description copied from class: RequestHandler

Returns response to the request. Programmers should implenets this method in order process given request.

Specified by:

prepareResponse in class RequestHandler

Parameters:

request - is message.

act - is Action concept extracted previously from request object.

Returns:

response; null means failure.

Throws:

FailureException