org.universAAL.samples.context.reasoner.client.uaalinterface
Class CHECaller

java.lang.Object
  org.universAAL.middleware.bus.member.BusMember
      org.universAAL.middleware.bus.member.Caller
          org.universAAL.middleware.service.ServiceCaller
              org.universAAL.samples.context.reasoner.client.uaalinterface.CHECaller

public class CHECaller
extends ServiceCaller

This class is just a shortened version of the CHE-Caller in the ctxt.situation.reasoner project. Here all methods remains that are needed to perform a SPARQL query at the CHE. This is here only used to offer the functionality of a written query. For further information please have a look at the other project

Author:

alfiva, amarinc

Field Summary

Fields inherited from class org.universAAL.middleware.bus.member.BusMember

busResourceURI, owner, theBus

Constructor Summary

CHECaller(ModuleContext context)

Method Summary

String	callDoSPARQL(String query) Call the CHE service
void	communicationChannelBroken() This abstract method is called for each member of the bus when the bus is being stopped.
ContextEvent	executeQuery(String theQuery) Execute a SPARQL CONSTRUCT query on the CHE that will return a reasoned event.
void	handleResponse(String reqID, ServiceResponse response) Will be called automatically in a new thread whenever the response corresponding to a previous call to ServiceCaller.sendRequest(ServiceRequest) is ready.

Methods inherited from class org.universAAL.middleware.service.ServiceCaller

addAvailabilitySubscription, busDyingOut, call, call, getAllServices, getMatchingService, getMatchingService, getMatchingService, getMyID, handleReply, removeAvailabilitySubscription, sendRequest

Methods inherited from class org.universAAL.middleware.bus.member.BusMember

close, getType, getURI

Methods inherited from class java.lang.Object

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

Constructor Detail

CHECaller

public CHECaller(ModuleContext context)

Method Detail

communicationChannelBroken

public void communicationChannelBroken()

Description copied from class: ServiceCaller

This abstract method is called for each member of the bus when the bus is being stopped.

Specified by:

communicationChannelBroken in class ServiceCaller

handleResponse

public void handleResponse(String reqID,
                           ServiceResponse response)

Description copied from class: ServiceCaller

Will be called automatically in a new thread whenever the response corresponding to a previous call to ServiceCaller.sendRequest(ServiceRequest) is ready.

Specified by:

handleResponse in class ServiceCaller

Parameters:

reqID - the ID returned by the previous call to ServiceCaller.sendRequest(ServiceRequest).

response - the expected response.

executeQuery

public ContextEvent executeQuery(String theQuery)

Execute a SPARQL CONSTRUCT query on the CHE that will return a reasoned event. That event will be published.

Parameters:

theQuery - The SPARQL CONSTRUCT query

callDoSPARQL

public String callDoSPARQL(String query)

Call the CHE service

Parameters:

query - The CONSTRUCT query

Returns:

Serialized event constructed