/* ****************************************************************************
*
* MetadataVector::fill -
*/
void MetadataVector::fill(MetadataVector& mV)
{
for (unsigned int ix = 0; ix < mV.size(); ++ix)
{
Metadata* mP = new Metadata(mV.get(ix));
push_back(mP);
}
}
/* ****************************************************************************
*
* associationsDiscoverContextAvailability -
*/
static HttpStatusCode associationsDiscoverContextAvailability
(
DiscoverContextAvailabilityRequest* requestP,
DiscoverContextAvailabilityResponse* responseP,
const std::string& scope,
const std::string& tenant,
int offset,
int limit,
bool details,
const std::vector<std::string>& servicePathV
)
{
if (scope == SCOPE_VALUE_ASSOC_ALL)
{
LM_W(("Bad Input (%s scope not supported)", SCOPE_VALUE_ASSOC_ALL));
responseP->errorCode.fill(SccNotImplemented, std::string("Not supported scope: '") + SCOPE_VALUE_ASSOC_ALL + "'");
return SccOk;
}
MetadataVector mdV;
std::string err;
if (!associationsQuery(&requestP->entityIdVector, &requestP->attributeList, scope, &mdV, &err, tenant, offset, limit, details, servicePathV))
{
mdV.release();
responseP->errorCode.fill(SccReceiverInternalError, std::string("Database error: ") + err);
return SccOk;
}
LM_T(LmtPagination, ("Offset: %d, Limit: %d, Details: %s", offset, limit, (details == true)? "true" : "false"));
/* Query for associated entities */
for (unsigned int ix = 0; ix < mdV.size(); ++ix) {
/* Each association involves a registrationsQuery() operation, accumulating the answer in
* responseP->responseVector */
Metadata* md = mdV.get(ix);
EntityIdVector enV;
AttributeList attrL;
EntityId en;
if (scope == SCOPE_VALUE_ASSOC_SOURCE) {
en = EntityId(md->association.entityAssociation.source.id, md->association.entityAssociation.source.type);
}
else { // SCOPE_VALUE_ASSOC_TARGET
en = EntityId(md->association.entityAssociation.target.id, md->association.entityAssociation.target.type);
}
enV.push_back(&en);
for (unsigned int jx = 0; jx < md->association.attributeAssociationList.size(); ++jx) {
if (scope == SCOPE_VALUE_ASSOC_SOURCE) {
attrL.push_back(md->association.attributeAssociationList.get(jx)->source);
}
else {
attrL.push_back(md->association.attributeAssociationList.get(jx)->target);
}
}
ContextRegistrationResponseVector crrV;
if (!registrationsQuery(enV, attrL, &crrV, &err, tenant, servicePathV))
{
responseP->errorCode.fill(SccReceiverInternalError, err);
mdV.release();
return SccOk;
}
/* Accumulate in responseP */
for (unsigned int jx = 0; jx < crrV.size(); ++jx) {
responseP->responseVector.push_back(crrV.get(jx));
}
}
if (responseP->responseVector.size() == 0)
{
mdV.release();
responseP->errorCode.fill(SccContextElementNotFound, "Could not query association with combination of entity/attribute");
LM_RE(SccOk, (responseP->errorCode.details.c_str()));
}
/* Set association metadata as final ContextRegistrationResponse */
ContextRegistrationResponse* crrMd = new ContextRegistrationResponse();
crrMd->contextRegistration.providingApplication.set("http://www.fi-ware.eu/NGSI/association");
crrMd->contextRegistration.registrationMetadataVector = mdV;
responseP->responseVector.push_back(crrMd);
return SccOk;
}
/*****************************************************************************
*
* processAssociations -
*
*/
static bool processAssociations(MetadataVector mdV, std::string* err, std::string tenant)
{
// FIXME: first version of associations doesn't support association update
DBClientBase* connection = NULL;
for (unsigned int ix = 0; ix < mdV.size(); ++ix) {
Metadata* md = mdV.get(ix);
if (md->type != "Association") {
continue;
}
LM_T(LmtMongo, ("Processing association metadata"));
std::string name = md->name;
std::string srcEnId = md->association.entityAssociation.source.id;
std::string srcEnType = md->association.entityAssociation.source.type;
std::string tgtEnId = md->association.entityAssociation.target.id;
std::string tgtEnType = md->association.entityAssociation.target.type;
BSONObj srcEn;
if (srcEnType == "") {
srcEn = BSON(ASSOC_ENT_ID << srcEnId);
}
else {
srcEn = BSON(ASSOC_ENT_ID << srcEnId << ASSOC_ENT_TYPE << srcEnType);
}
BSONObj tgtEn;
if (tgtEnType == "") {
tgtEn = BSON(ASSOC_ENT_ID << tgtEnId);
}
else {
tgtEn = BSON(ASSOC_ENT_ID << tgtEnId << ASSOC_ENT_TYPE << tgtEnType);
}
BSONArrayBuilder attrs;
for (unsigned int jx = 0; jx < md->association.attributeAssociationList.size(); ++jx) {
std::string srcAtt = md->association.attributeAssociationList.get(jx)->source;
std::string tgtAtt = md->association.attributeAssociationList.get(jx)->target;
attrs.append(BSON(ASSOC_ATTRS_SOURCE << srcAtt << ASSOC_ATTRS_TARGET << tgtAtt));
}
BSONObj doc = BSON("_id" << name << ASSOC_SOURCE_ENT << srcEn << ASSOC_TARGET_ENT << tgtEn << ASSOC_ATTRS << attrs.arr());
LM_T(LmtMongo, ("insert() in '%s' collection: '%s'", getAssociationsCollectionName(tenant).c_str(), doc.toString().c_str()));
try
{
connection = getMongoConnection();
connection->insert(getAssociationsCollectionName(tenant).c_str(), doc);
releaseMongoConnection(connection);
LM_I(("Database Operation Successful (%s)", doc.toString().c_str()));
}
catch (const DBException &e)
{
releaseMongoConnection(connection);
*err = e.what();
LM_E(("Database Error ('insert \"%s\" in %s', '%s')", doc.toString().c_str(), getAssociationsCollectionName(tenant).c_str(), e.what()));
return false;
}
catch (...)
{
releaseMongoConnection(connection);
*err = "Generic Exception from mongo";
LM_E(("Database Error ('insert \"%s\" in %s', '%s')", doc.toString().c_str(), getAssociationsCollectionName(tenant).c_str(), "generic error"));
return false;
}
}
return true;
}