/* ****************************************************************************
*
* postUpdateContext -
*
* POST /v1/updateContext
* POST /ngsi10/updateContext
*
* Payload In: UpdateContextRequest
* Payload Out: UpdateContextResponse
*/
std::string postUpdateContext
(
ConnectionInfo* ciP,
int components,
std::vector<std::string>& compV,
ParseData* parseDataP
)
{
UpdateContextResponse* upcrsP = &parseDataP->upcrs.res;
UpdateContextRequest* upcrP = &parseDataP->upcr.res;
std::string answer;
//
// 01. Check service-path consistency
//
// If more than ONE service-path is input, an error is returned as response.
// If NO service-path is issued, then the default service-path "/" is used.
// After these checks, the service-path is checked to be 'correct'.
//
if (ciP->servicePathV.size() > 1)
{
upcrsP->errorCode.fill(SccBadRequest, "more than one service path in context update request");
LM_W(("Bad Input (more than one service path for an update request)"));
answer = upcrsP->render(ciP, UpdateContext, "");
return answer;
}
else if (ciP->servicePathV.size() == 0)
{
ciP->servicePathV.push_back(DEFAULT_SERVICE_PATH);
}
std::string res = servicePathCheck(ciP->servicePathV[0].c_str());
if (res != "OK")
{
upcrsP->errorCode.fill(SccBadRequest, res);
answer = upcrsP->render(ciP, UpdateContext, "");
return answer;
}
//
// 02. Send the request to mongoBackend/mongoUpdateContext
//
upcrsP->errorCode.fill(SccOk);
attributesToNotFound(upcrP);
ciP->httpStatusCode = mongoUpdateContext(upcrP, upcrsP, ciP->tenant, ciP->servicePathV, ciP->uriParam, ciP->httpHeaders.xauthToken, "postUpdateContext");
foundAndNotFoundAttributeSeparation(upcrsP, upcrP, ciP);
//
// 03. Normal case - no forwards
//
// If there is nothing to forward, just return the result
//
bool forwarding = forwardsPending(upcrsP);
if (forwarding == false)
{
answer = upcrsP->render(ciP, UpdateContext, "");
upcrP->release();
return answer;
}
//
// 04. mongoBackend doesn't give us the values of the attributes.
// So, here we have to do a search inside the initial UpdateContextRequest to fill in all the
// attribute-values in the output from mongoUpdateContext
//
for (unsigned int cerIx = 0; cerIx < upcrsP->contextElementResponseVector.size(); ++cerIx)
{
ContextElement* ceP = &upcrsP->contextElementResponseVector[cerIx]->contextElement;
for (unsigned int aIx = 0; aIx < ceP->contextAttributeVector.size(); ++aIx)
{
ContextAttribute* aP = upcrP->attributeLookup(&ceP->entityId, ceP->contextAttributeVector[aIx]->name);
if (aP == NULL)
{
LM_E(("Internal Error (attribute '%s' not found)", ceP->contextAttributeVector[aIx]->name.c_str()));
}
else
{
ceP->contextAttributeVector[aIx]->value = aP->value;
ceP->contextAttributeVector[aIx]->type = aP->type;
}
}
}
//
// 05. Forwards necessary - sort parts in outgoing requestV
// requestV is a vector of UpdateContextRequests and each Context Provider
// will have a slot in the vector.
// When a ContextElementResponse is found in the output from mongoUpdateContext, a
// UpdateContextRequest is to be found/created and inside that UpdateContextRequest
// a ContextElement for the Entity of the ContextElementResponse.
//
// Non-found parts go directly to 'response'.
//
UpdateContextRequestVector requestV;
UpdateContextResponse response;
response.errorCode.fill(SccOk);
for (unsigned int cerIx = 0; cerIx < upcrsP->contextElementResponseVector.size(); ++cerIx)
{
ContextElementResponse* cerP = upcrsP->contextElementResponseVector[cerIx];
if (cerP->contextElement.contextAttributeVector.size() == 0)
{
//
// If we find a contextElement without attributes here, then something is wrong
//
LM_E(("Orion Bug (empty contextAttributeVector for ContextElementResponse %d)", cerIx));
}
else
{
for (unsigned int aIx = 0; aIx < cerP->contextElement.contextAttributeVector.size(); ++aIx)
{
ContextAttribute* aP = cerP->contextElement.contextAttributeVector[aIx];
//
// 0. If the attribute is 'not-found' - just add the attribute to the outgoing response
//
if (aP->found == false)
{
response.notFoundPush(&cerP->contextElement.entityId, new ContextAttribute(aP), NULL);
continue;
}
//
// 1. If the attribute is found locally - just add the attribute to the outgoing response
//
if (aP->providingApplication.get() == "")
{
response.foundPush(&cerP->contextElement.entityId, new ContextAttribute(aP));
continue;
}
//
// 2. Lookup UpdateContextRequest in requestV according to providingApplication.
// If not found, add one.
UpdateContextRequest* reqP = requestV.lookup(aP->providingApplication.get());
if (reqP == NULL)
{
reqP = new UpdateContextRequest(aP->providingApplication.get(), &cerP->contextElement.entityId);
reqP->updateActionType.set("UPDATE");
requestV.push_back(reqP);
}
//
// 3. Increase the correct format counter
//
if (aP->providingApplication.getFormat() == XML)
{
reqP->xmls++;
}
else
{
reqP->jsons++;
}
//
// 3. Lookup ContextElement in UpdateContextRequest according to EntityId.
// If not found, add one (to the ContextElementVector of the UpdateContextRequest).
//
ContextElement* ceP = reqP->contextElementVector.lookup(&cerP->contextElement.entityId);
if (ceP == NULL)
{
ceP = new ContextElement(&cerP->contextElement.entityId);
reqP->contextElementVector.push_back(ceP);
}
//
// 4. Add ContextAttribute to the correct ContextElement in the correct UpdateContextRequest
//
ceP->contextAttributeVector.push_back(new ContextAttribute(aP));
}
}
}
//
// Now we are ready to forward the Updates
//
//
// Calling each of the Context Providers, merging their results into the
// total response 'response'
//
for (unsigned int ix = 0; ix < requestV.size(); ++ix)
{
if (requestV[ix]->contextProvider == "")
{
LM_E(("Internal Error (empty context provider string)"));
continue;
}
UpdateContextResponse upcrs;
Format format = requestV[ix]->format();
updateForward(ciP, requestV[ix], &upcrs, format);
//
// Add the result from the forwarded update to the total response in 'response'
//
response.merge(&upcrs);
}
answer = response.render(ciP, UpdateContext, "");
//
// Cleanup
//
upcrP->release();
requestV.release();
upcrsP->release();
upcrsP->fill(&response);
response.release();
return answer;
}
/* ****************************************************************************
*
* postUpdateContext -
*
* POST /v1/updateContext
* POST /ngsi10/updateContext
*
* Payload In: UpdateContextRequest
* Payload Out: UpdateContextResponse
*/
std::string postUpdateContext
(
ConnectionInfo* ciP,
int components,
std::vector<std::string>& compV,
ParseData* parseDataP,
Ngsiv2Flavour ngsiV2Flavour
)
{
UpdateContextResponse* upcrsP = &parseDataP->upcrs.res;
UpdateContextRequest* upcrP = &parseDataP->upcr.res;
std::string answer;
bool asJsonObject = (ciP->uriParam[URI_PARAM_ATTRIBUTE_FORMAT] == "object" && ciP->outMimeType == JSON);
bool forcedUpdate = ciP->uriParamOptions[OPT_FORCEDUPDATE];
//
// 01. Check service-path consistency
//
// If more than ONE service-path is input, an error is returned as response.
// If ONE service-path is issued and that service path is "", then the default service-path is used.
// Note that by construction servicePath cannot have 0 elements
// After these checks, the service-path is checked to be 'correct'.
//
if (ciP->servicePathV.size() > 1)
{
upcrsP->errorCode.fill(SccBadRequest, "more than one service path in context update request");
alarmMgr.badInput(clientIp, "more than one service path for an update request");
TIMED_RENDER(answer = upcrsP->toJsonV1(asJsonObject));
upcrP->release();
return answer;
}
else if (ciP->servicePathV[0] == "")
{
ciP->servicePathV[0] = SERVICE_PATH_ROOT;
}
std::string res = servicePathCheck(ciP->servicePathV[0].c_str());
if (res != "OK")
{
upcrsP->errorCode.fill(SccBadRequest, res);
TIMED_RENDER(answer = upcrsP->toJsonV1(asJsonObject));
upcrP->release();
return answer;
}
//
// 02. Send the request to mongoBackend/mongoUpdateContext
//
upcrsP->errorCode.fill(SccOk);
attributesToNotFound(upcrP);
HttpStatusCode httpStatusCode;
TIMED_MONGO(httpStatusCode = mongoUpdateContext(upcrP,
upcrsP,
ciP->tenant,
ciP->servicePathV,
ciP->uriParam,
ciP->httpHeaders.xauthToken,
ciP->httpHeaders.correlator,
ciP->httpHeaders.ngsiv2AttrsFormat,
forcedUpdate,
ciP->apiVersion,
ngsiV2Flavour));
if (ciP->httpStatusCode != SccCreated)
{
ciP->httpStatusCode = httpStatusCode;
}
foundAndNotFoundAttributeSeparation(upcrsP, upcrP, ciP);
//
// 03. Normal case - no forwards
//
// If there is nothing to forward, just return the result
//
bool forwarding = forwardsPending(upcrsP);
LM_T(LmtForward, ("forwardsPending returned %s", FT(forwarding)));
if (forwarding == false)
{
TIMED_RENDER(answer = upcrsP->toJsonV1(asJsonObject));
upcrP->release();
return answer;
}
//
// 04. mongoBackend doesn't give us the values of the attributes.
// So, here we have to do a search inside the initial UpdateContextRequest to fill in all the
// attribute-values in the output from mongoUpdateContext
//
for (unsigned int cerIx = 0; cerIx < upcrsP->contextElementResponseVector.size(); ++cerIx)
{
Entity* eP = &upcrsP->contextElementResponseVector[cerIx]->entity;
for (unsigned int aIx = 0; aIx < eP->attributeVector.size(); ++aIx)
{
ContextAttribute* aP = upcrP->attributeLookup(eP, eP->attributeVector[aIx]->name);
if (aP == NULL)
{
LM_E(("Internal Error (attribute '%s' not found)", eP->attributeVector[aIx]->name.c_str()));
}
else
{
eP->attributeVector[aIx]->stringValue = aP->stringValue;
eP->attributeVector[aIx]->numberValue = aP->numberValue;
eP->attributeVector[aIx]->boolValue = aP->boolValue;
eP->attributeVector[aIx]->valueType = aP->valueType;
eP->attributeVector[aIx]->compoundValueP = aP->compoundValueP == NULL ? NULL : aP->compoundValueP->clone();
}
}
}
//
// 05. Forwards necessary - sort parts in outgoing requestV
// requestV is a vector of UpdateContextRequests and each Context Provider
// will have a slot in the vector.
// When a ContextElementResponse is found in the output from mongoUpdateContext, a
// UpdateContextRequest is to be found/created and inside that UpdateContextRequest
// a ContextElement for the Entity of the ContextElementResponse.
//
// Non-found parts go directly to 'response'.
//
UpdateContextRequestVector requestV;
UpdateContextResponse response;
response.errorCode.fill(SccOk);
for (unsigned int cerIx = 0; cerIx < upcrsP->contextElementResponseVector.size(); ++cerIx)
{
ContextElementResponse* cerP = upcrsP->contextElementResponseVector[cerIx];
if (cerP->entity.attributeVector.size() == 0)
{
//
// If we find a contextElement without attributes here, then something is wrong
//
LM_E(("Orion Bug (empty contextAttributeVector for ContextElementResponse %d)", cerIx));
}
else
{
for (unsigned int aIx = 0; aIx < cerP->entity.attributeVector.size(); ++aIx)
{
ContextAttribute* aP = cerP->entity.attributeVector[aIx];
//
// 0. If the attribute is 'not-found' - just add the attribute to the outgoing response
//
if (aP->found == false)
{
ContextAttribute ca(aP);
response.notFoundPush(&cerP->entity, &ca, NULL);
continue;
}
//
// 1. If the attribute is found locally - just add the attribute to the outgoing response
//
if (aP->providingApplication.get() == "")
{
ContextAttribute ca(aP);
response.foundPush(&cerP->entity, &ca);
continue;
}
//
// 2. Lookup UpdateContextRequest in requestV according to providingApplication.
// If not found, add one.
UpdateContextRequest* reqP = requestV.lookup(aP->providingApplication.get());
if (reqP == NULL)
{
reqP = new UpdateContextRequest(aP->providingApplication.get(), aP->providingApplication.providerFormat, &cerP->entity);
reqP->updateActionType = ActionTypeUpdate;
requestV.push_back(reqP);
}
//
// 3. Lookup ContextElement in UpdateContextRequest according to EntityId.
// If not found, add one (to the EntityVector of the UpdateContextRequest).
//
Entity* eP = reqP->entityVector.lookup(cerP->entity.id, cerP->entity.type);
if (eP == NULL)
{
eP = new Entity();
eP->fill(cerP->entity.id, cerP->entity.type, cerP->entity.isPattern);
reqP->entityVector.push_back(eP);
}
//
// 4. Add ContextAttribute to the correct ContextElement in the correct UpdateContextRequest
//
eP->attributeVector.push_back(new ContextAttribute(aP));
}
}
}
//
// Now we are ready to forward the Updates
//
//
// Calling each of the Context Providers, merging their results into the
// total response 'response'
//
bool forwardOk = true;
for (unsigned int ix = 0; ix < requestV.size() && ix < cprForwardLimit; ++ix)
{
if (requestV[ix]->contextProvider == "")
{
LM_E(("Internal Error (empty context provider string)"));
continue;
}
UpdateContextResponse upcrs;
bool b;
b = updateForward(ciP, requestV[ix], &upcrs);
if (b == false)
{
forwardOk = false;
}
//
// Add the result from the forwarded update to the total response in 'response'
//
response.merge(&upcrs);
}
//
// Note this is a slight break in the separation of concerns among the different layers (i.e.
// serviceRoutine/ logic should work in a "NGSIv1 isolated context"). However, it seems to be
// a smart way of dealing with partial update situations
//
if (ciP->apiVersion == V2)
{
LM_T(LmtForward, ("ciP->apiVersion == V2"));
//
// Adjust OrionError response in the case of partial updates. This may happen in CPr forwarding
// scenarios. Note that mongoBackend logic "splits" successfull updates and failing updates in
// two different CER (maybe using the same entity)
//
std::string failing = "";
unsigned int failures = 0;
LM_T(LmtForward, ("Going over a contextElementResponseVector of %d items", response.contextElementResponseVector.size()));
for (unsigned int ix = 0; ix < response.contextElementResponseVector.size(); ++ix)
{
ContextElementResponse* cerP = response.contextElementResponseVector[ix];
if (cerP->statusCode.code != SccOk)
{
failures++;
std::string failingPerCer = "";
for (unsigned int jx = 0; jx < cerP->entity.attributeVector.size(); ++jx)
{
failingPerCer += cerP->entity.attributeVector[jx]->name;
if (jx != cerP->entity.attributeVector.size() - 1)
{
failingPerCer +=", ";
}
}
failing += cerP->entity.id + "-" + cerP->entity.type + " : [" + failingPerCer + "], ";
}
}
//
// Note that we modify parseDataP->upcrs.res.oe and not response.oe, as the former is the
// one used by the calling postBatchUpdate() function at serviceRoutineV2 library
//
if ((forwardOk == true) && (failures == 0))
{
parseDataP->upcrs.res.oe.fill(SccNone, "");
}
else if (failures == response.contextElementResponseVector.size())
{
parseDataP->upcrs.res.oe.fill(SccContextElementNotFound, ERROR_DESC_NOT_FOUND_ENTITY, ERROR_NOT_FOUND);
}
else if (failures > 0)
{
// Removing trailing ", "
failing = failing.substr(0, failing.size() - 2);
// If some CER (but not all) fail, then it is a partial update
parseDataP->upcrs.res.oe.fill(SccContextElementNotFound, "Attributes that were not updated: { " + failing + " }", "PartialUpdate");
}
else // failures == 0
{
// No failure, so invalidate any possible OrionError filled by mongoBackend on the mongoUpdateContext step
parseDataP->upcrs.res.oe.fill(SccNone, "");
}
}
else // v1
{
LM_T(LmtForward, ("ciP->apiVersion != V2"));
// Note that v2 case doesn't use an actual response (so no need to waste time rendering it).
// We render in the v1 case only
TIMED_RENDER(answer = response.toJsonV1(asJsonObject));
}
//
// Cleanup
//
upcrP->release();
requestV.release();
upcrsP->release();
upcrsP->fill(&response);
response.release();
return answer;
}