// This is just a sample implementation of entity handler.
// Entity handler can be implemented in several ways by the manufacturer
OCEntityHandlerResult entityHandler(std::shared_ptr<OCResourceRequest> request)
{
cout << "\tIn Server CPP entity handler:\n";
OCEntityHandlerResult ehResult = OC_EH_ERROR;
if(request)
{
// Get the request type and request flag
std::string requestType = request->getRequestType();
int requestFlag = request->getRequestHandlerFlag();
if(requestFlag & RequestHandlerFlag::RequestFlag)
{
cout << "\t\trequestFlag : Request\n";
auto pResponse = std::make_shared<OC::OCResourceResponse>();
pResponse->setRequestHandle(request->getRequestHandle());
pResponse->setResourceHandle(request->getResourceHandle());
// Check for query params (if any)
QueryParamsMap queries = request->getQueryParameters();
if (!queries.empty())
{
std::cout << "\nQuery processing upto entityHandler" << std::endl;
}
for (auto it : queries)
{
std::cout << "Query key: " << it.first << " value : " << it.second
<< std:: endl;
}
// If the request type is GET
if(requestType == "GET")
{
cout << "\t\t\trequestType : GET\n";
if(isSlowResponse) // Slow response case
{
static int startedThread = 0;
if(!startedThread)
{
std::thread t(handleSlowResponse, (void *)this, request);
startedThread = 1;
t.detach();
}
ehResult = OC_EH_SLOW;
}
else // normal response case.
{
pResponse->setErrorCode(200);
pResponse->setResponseResult(OC_EH_OK);
pResponse->setResourceRepresentation(get());
if(OC_STACK_OK == OCPlatform::sendResponse(pResponse))
{
ehResult = OC_EH_OK;
}
}
}
else if(requestType == "PUT")
{
cout << "\t\t\trequestType : PUT\n";
OCRepresentation rep = request->getResourceRepresentation();
// Do related operations related to PUT request
// Update the lightResource
put(rep);
pResponse->setErrorCode(200);
pResponse->setResponseResult(OC_EH_OK);
pResponse->setResourceRepresentation(get());
if(OC_STACK_OK == OCPlatform::sendResponse(pResponse))
{
ehResult = OC_EH_OK;
}
}
else if(requestType == "POST")
{
cout << "\t\t\trequestType : POST\n";
OCRepresentation rep = request->getResourceRepresentation();
// Do related operations related to POST request
OCRepresentation rep_post = post(rep);
pResponse->setResourceRepresentation(rep_post);
pResponse->setErrorCode(200);
if(rep_post.hasAttribute("createduri"))
{
pResponse->setResponseResult(OC_EH_RESOURCE_CREATED);
pResponse->setNewResourceUri(rep_post.getValue<std::string>("createduri"));
}
else
{
pResponse->setResponseResult(OC_EH_OK);
}
if(OC_STACK_OK == OCPlatform::sendResponse(pResponse))
{
ehResult = OC_EH_OK;
}
}
else if(requestType == "DELETE")
{
cout << "Delete request received" << endl;
}
}
if(requestFlag & RequestHandlerFlag::ObserverFlag)
{
ObservationInfo observationInfo = request->getObservationInfo();
if(ObserveAction::ObserveRegister == observationInfo.action)
{
m_interestedObservers.push_back(observationInfo.obsId);
}
else if(ObserveAction::ObserveUnregister == observationInfo.action)
{
m_interestedObservers.erase(std::remove(
m_interestedObservers.begin(),
m_interestedObservers.end(),
observationInfo.obsId),
m_interestedObservers.end());
}
pthread_t threadId;
cout << "\t\trequestFlag : Observer\n";
gObservation = 1;
static int startedThread = 0;
// Observation happens on a different thread in ChangeLightRepresentation function.
// If we have not created the thread already, we will create one here.
if(!startedThread)
{
pthread_create (&threadId, NULL, ChangeLightRepresentation, (void *)this);
startedThread = 1;
}
ehResult = OC_EH_OK;
}
}
else
{
std::cout << "Request invalid" << std::endl;
}
return ehResult;
}
// This is just a sample implementation of entity handler.
// Entity handler can be implemented in several ways by the manufacturer
OCEntityHandlerResult entityHandler(std::shared_ptr<OCResourceRequest> request)
{
cout << "\tIn Server CPP entity handler:\n";
OCEntityHandlerResult ehResult = OC_EH_ERROR;
if(request)
{
// Get the request type and request flag
std::string requestType = request->getRequestType();
int requestFlag = request->getRequestHandlerFlag();
if(requestFlag & RequestHandlerFlag::InitFlag)
{
cout << "\t\trequestFlag : Init\n";
// entity handler to perform resource initialization operations
}
if(requestFlag & RequestHandlerFlag::RequestFlag)
{
cout << "\t\trequestFlag : Request\n";
auto pResponse = std::make_shared<OC::OCResourceResponse>();
pResponse->setRequestHandle(request->getRequestHandle());
pResponse->setResourceHandle(request->getResourceHandle());
// Check for query params (if any)
QueryParamsMap queryParamsMap = request->getQueryParameters();
// Entity handler to check the validity of resourceTypeName and resource interfaces
// It is Entity handler's responsibility to keep track of the list of resources prior to call
// Requested method
std::string interfaceName;
std::string typeName;
cout << "\t\t\tquery params: \n";
for(auto it : queryParamsMap)
{
cout << "\t\t\t\t" << it.first << ":" << it.second << endl;
std::string firstQuery = it.first;
if(firstQuery.find_first_of("if") == 0)
{
interfaceName = it.second;
}
else if(firstQuery.find_first_of("rt") == 0 )
{
typeName = it.second;
}
}
if(typeName.compare(resourceTypeLight) == 0 &&
interfaceName.compare(resourceInterfaceDefault) == 0)
{
ehResult = OC_EH_OK;
}
else
{
cout<< "\t\t Invalid ResourceInterface Type & Name received from Client"<<endl;
}
// If the request type is GET
if(requestType == "GET" && ehResult == OC_EH_OK)
{
cout << "\t\t\trequestType : GET\n";
if(isSlowResponse) // Slow response case
{
static int startedThread = 0;
if(!startedThread)
{
std::thread t(handleSlowResponse, (void *)this, request);
startedThread = 1;
t.detach();
}
ehResult = OC_EH_SLOW;
}
else // normal response case.
{
pResponse->setErrorCode(200);
pResponse->setResponseResult(OC_EH_OK);
pResponse->setResourceRepresentation(get());
if(OC_STACK_OK == OCPlatform::sendResponse(pResponse))
{
ehResult = OC_EH_OK;
}
}
}
else if(requestType == "PUT" && ehResult == OC_EH_OK)
{
cout << "\t\t\trequestType : PUT\n";
OCRepresentation rep = request->getResourceRepresentation();
// Do related operations related to PUT request
// Update the lightResource
put(rep);
pResponse->setErrorCode(200);
pResponse->setResponseResult(OC_EH_OK);
pResponse->setResourceRepresentation(get());
if(OC_STACK_OK == OCPlatform::sendResponse(pResponse))
{
ehResult = OC_EH_OK;
}
}
else if(requestType == "POST" && ehResult == OC_EH_OK)
{
cout << "\t\t\trequestType : POST\n";
OCRepresentation rep = request->getResourceRepresentation();
// Do related operations related to POST request
OCRepresentation rep_post = post(rep);
pResponse->setResourceRepresentation(rep_post);
pResponse->setErrorCode(200);
if(rep_post.hasAttribute("createduri"))
{
pResponse->setResponseResult(OC_EH_RESOURCE_CREATED);
pResponse->setNewResourceUri(rep_post.getValue<std::string>("createduri"));
}
else
{
pResponse->setResponseResult(OC_EH_OK);
}
if(OC_STACK_OK == OCPlatform::sendResponse(pResponse))
{
ehResult = OC_EH_OK;
}
}
else if(requestType == "DELETE" && ehResult == OC_EH_OK)
{
// DELETE request operations
}
}
if(requestFlag & RequestHandlerFlag::ObserverFlag)
{
ObservationInfo observationInfo = request->getObservationInfo();
if(ObserveAction::ObserveRegister == observationInfo.action)
{
m_interestedObservers.push_back(observationInfo.obsId);
}
else if(ObserveAction::ObserveUnregister == observationInfo.action)
{
m_interestedObservers.erase(std::remove(
m_interestedObservers.begin(),
m_interestedObservers.end(),
observationInfo.obsId),
m_interestedObservers.end());
}
pthread_t threadId;
cout << "\t\trequestFlag : Observer\n";
gObservation = 1;
static int startedThread = 0;
// Observation happens on a different thread in ChangeLightRepresentation function.
// If we have not created the thread already, we will create one here.
if(!startedThread)
{
pthread_create (&threadId, NULL, ChangeLightRepresentation, (void *)this);
startedThread = 1;
}
ehResult = OC_EH_OK;
}
}
else
{
std::cout << "Request invalid" << std::endl;
}
return ehResult;
}
