/* ****************************************************************************
*
* mongoUnsubscribeContextAvailability -
*/
HttpStatusCode mongoUnsubscribeContextAvailability
(
UnsubscribeContextAvailabilityRequest* requestP,
UnsubscribeContextAvailabilityResponse* responseP,
const std::string& tenant
)
{
bool reqSemTaken;
std::string err;
reqSemTake(__FUNCTION__, "ngsi9 unsubscribe request", SemWriteOp, &reqSemTaken);
LM_T(LmtMongo, ("Unsubscribe Context Availability"));
/* No matter if success or failure, the subscriptionId in the response is always the one
* in the request */
responseP->subscriptionId = requestP->subscriptionId;
/* Look for document */
BSONObj sub;
OID id;
if (!safeGetSubId(requestP->subscriptionId, &id, &(responseP->statusCode)))
{
reqSemGive(__FUNCTION__, "ngsi9 unsubscribe request (safeGetSubId fail)", reqSemTaken);
if (responseP->statusCode.code == SccContextElementNotFound)
{
// FIXME: doubt: invalid OID format? Or, subscription not found?
std::string details = std::string("invalid OID format: '") + requestP->subscriptionId.get() + "'";
alarmMgr.badInput(clientIp, details);
}
else // SccReceiverInternalError
{
LM_E(("Runtime Error (exception getting OID: %s)", responseP->statusCode.details.c_str()));
}
return SccOk;
}
if (!collectionFindOne(getSubscribeContextAvailabilityCollectionName(tenant), BSON("_id" << id), &sub, &err))
{
reqSemGive(__FUNCTION__, "ngsi9 unsubscribe request (mongo db exception)", reqSemTaken);
responseP->statusCode.fill(SccReceiverInternalError, err);
return SccOk;
}
alarmMgr.dbErrorReset();
if (sub.isEmpty())
{
responseP->statusCode.fill(SccContextElementNotFound);
reqSemGive(__FUNCTION__, "ngsi9 unsubscribe request (no subscriptions)", reqSemTaken);
return SccOk;
}
/* Remove document in MongoDB */
// FIXME: I would prefer to do the find and remove in a single operation. Is the some similar
// to findAndModify for this?
if (!collectionRemove(getSubscribeContextAvailabilityCollectionName(tenant), BSON("_id" << OID(requestP->subscriptionId.get())), &err))
{
reqSemGive(__FUNCTION__, "ngsi9 unsubscribe request (mongo db exception)", reqSemTaken);
responseP->statusCode.fill(SccReceiverInternalError, err);
return SccOk;
}
reqSemGive(__FUNCTION__, "ngsi9 unsubscribe request", reqSemTaken);
responseP->statusCode.fill(SccOk);
return SccOk;
}
/* ****************************************************************************
*
* mongoUnsubscribeContext -
*/
HttpStatusCode mongoUnsubscribeContext(UnsubscribeContextRequest* requestP, UnsubscribeContextResponse* responseP, const std::string& tenant)
{
bool reqSemTaken;
std::string err;
reqSemTake(__FUNCTION__, "ngsi10 unsubscribe request", SemWriteOp, &reqSemTaken);
LM_T(LmtMongo, ("Unsubscribe Context"));
/* No matter if success or failure, the subscriptionId in the response is always the one
* in the request */
responseP->subscriptionId = requestP->subscriptionId;
if (responseP->subscriptionId.get() == "")
{
reqSemGive(__FUNCTION__, "ngsi10 unsubscribe request (no subscriptions found)", reqSemTaken);
responseP->statusCode.fill(SccContextElementNotFound);
alarmMgr.badInput(clientIp, "no subscriptionId");
return SccOk;
}
/* Look for document */
BSONObj sub;
OID id;
if (!safeGetSubId(requestP->subscriptionId, &id, &(responseP->statusCode)))
{
reqSemGive(__FUNCTION__, "ngsi10 unsubscribe request (safeGetSubId fail)", reqSemTaken);
if (responseP->statusCode.code == SccContextElementNotFound)
{
// FIXME: Doubt - invalid OID format? Or, just a subscription that was not found?
std::string details = std::string("invalid OID format: '") + requestP->subscriptionId.get() + "'";
alarmMgr.badInput(clientIp, details);
}
else // SccReceiverInternalError
{
LM_E(("Runtime Error (exception getting OID: %s)", responseP->statusCode.details.c_str()));
}
return SccOk;
}
if (!collectionFindOne(getSubscribeContextCollectionName(tenant), BSON("_id" << id), &sub, &err))
{
reqSemGive(__FUNCTION__, "ngsi10 unsubscribe request (mongo db exception)", reqSemTaken);
responseP->statusCode.fill(SccReceiverInternalError, err);
return SccOk;
}
if (sub.isEmpty())
{
reqSemGive(__FUNCTION__, "ngsi10 unsubscribe request (no subscriptions found)", reqSemTaken);
responseP->statusCode.fill(SccContextElementNotFound, std::string("subscriptionId: /") + requestP->subscriptionId.get() + "/");
return SccOk;
}
/* Remove document in MongoDB */
// FIXME: I would prefer to do the find and remove in a single operation. Is there something similar
// to findAndModify for this?
if (!collectionRemove(getSubscribeContextCollectionName(tenant), BSON("_id" << OID(requestP->subscriptionId.get())), &err))
{
reqSemGive(__FUNCTION__, "ngsi10 unsubscribe request (mongo db exception)", reqSemTaken);
responseP->statusCode.fill(SccReceiverInternalError, err);
return SccOk;
}
/* Destroy any previous ONTIMEINTERVAL thread */
getNotifier()->destroyOntimeIntervalThreads(requestP->subscriptionId.get());
//
// Removing subscription from mongo subscription cache
//
LM_T(LmtSubCache, ("removing subscription '%s' (tenant '%s') from mongo subscription cache", requestP->subscriptionId.get().c_str(), tenant.c_str()));
cacheSemTake(__FUNCTION__, "Removing subscription from cache");
CachedSubscription* cSubP = subCacheItemLookup(tenant.c_str(), requestP->subscriptionId.get().c_str());
if (cSubP != NULL)
{
subCacheItemRemove(cSubP);
}
cacheSemGive(__FUNCTION__, "Removing subscription from cache");
reqSemGive(__FUNCTION__, "ngsi10 unsubscribe request", reqSemTaken);
responseP->statusCode.fill(SccOk);
return SccOk;
}
/* ****************************************************************************
*
* mongoUnsubscribeContext -
*/
HttpStatusCode mongoUnsubscribeContext(UnsubscribeContextRequest* requestP, UnsubscribeContextResponse* responseP, const std::string& tenant)
{
bool reqSemTaken;
std::string err;
reqSemTake(__FUNCTION__, "ngsi10 unsubscribe request", SemWriteOp, &reqSemTaken);
LM_T(LmtMongo, ("Unsubscribe Context"));
/* No matter if success or failure, the subscriptionId in the response is always the one
* in the request */
responseP->subscriptionId = requestP->subscriptionId;
if (responseP->subscriptionId.get() == "")
{
responseP->statusCode.fill(SccContextElementNotFound);
LM_W(("Bad Input (no subscriptionId)"));
return SccOk;
}
/* Look for document */
BSONObj sub;
OID id;
try
{
id = OID(requestP->subscriptionId.get());
}
catch (const AssertionException &e)
{
reqSemGive(__FUNCTION__, "ngsi10 unsubscribe request (mongo assertion exception)", reqSemTaken);
//
// This happens when OID format is wrong
// FIXME: this checking should be done at parsing stage, without progressing to
// mongoBackend. For the moment we can live this here, but we should remove in the future
// (old issue #95)
//
responseP->statusCode.fill(SccContextElementNotFound);
LM_W(("Bad Input (invalid OID format)"));
return SccOk;
}
if (!collectionFindOne(getSubscribeContextCollectionName(tenant), BSON("_id" << id), &sub, &err))
{
reqSemGive(__FUNCTION__, "ngsi10 unsubscribe request (mongo db exception)", reqSemTaken);
responseP->statusCode.fill(SccReceiverInternalError, err);
return SccOk;
}
if (sub.isEmpty())
{
reqSemGive(__FUNCTION__, "ngsi10 unsubscribe request (no subscriptions found)", reqSemTaken);
responseP->statusCode.fill(SccContextElementNotFound, std::string("subscriptionId: /") + requestP->subscriptionId.get() + "/");
return SccOk;
}
/* Remove document in MongoDB */
// FIXME: I would prefer to do the find and remove in a single operation. Is there something similar
// to findAndModify for this?
if (!collectionRemove(getSubscribeContextCollectionName(tenant), BSON("_id" << OID(requestP->subscriptionId.get())), &err))
{
reqSemGive(__FUNCTION__, "ngsi10 unsubscribe request (mongo db exception)", reqSemTaken);
responseP->statusCode.fill(SccReceiverInternalError, err);
return SccOk;
}
/* Destroy any previous ONTIMEINTERVAL thread */
getNotifier()->destroyOntimeIntervalThreads(requestP->subscriptionId.get());
// FIXME P7: mongoSubCache stuff could be avoided if subscription is not patterned
//
// Removing subscription from mongo subscription cache
//
LM_T(LmtMongoSubCache, ("removing subscription '%s' (tenant '%s') from mongo subscription cache", requestP->subscriptionId.get().c_str(), tenant.c_str()));
cacheSemTake(__FUNCTION__, "Removing subscription from cache");
CachedSubscription* cSubP = mongoSubCacheItemLookup(tenant.c_str(), requestP->subscriptionId.get().c_str());
if (cSubP != NULL) // Will only enter here if wildcard subscription
{
mongoSubCacheItemRemove(cSubP);
}
cacheSemGive(__FUNCTION__, "Removing subscription from cache");
reqSemGive(__FUNCTION__, "ngsi10 unsubscribe request", reqSemTaken);
responseP->statusCode.fill(SccOk);
return SccOk;
}
