OGRCouchDBRowsLayer::OGRCouchDBRowsLayer(OGRCouchDBDataSource* poDSIn) :
OGRCouchDBLayer(poDSIn),
bAllInOne(false)
{
poFeatureDefn = new OGRFeatureDefn( "rows" );
poFeatureDefn->Reference();
OGRFieldDefn oFieldId("_id", OFTString);
poFeatureDefn->AddFieldDefn(&oFieldId);
OGRFieldDefn oFieldRev("_rev", OFTString);
poFeatureDefn->AddFieldDefn(&oFieldRev);
SetDescription( poFeatureDefn->GetName() );
}
void OGRCloudantTableLayer::LoadMetadata()
{
if( bHasLoadedMetadata )
return;
bHasLoadedMetadata = true;
if (pszSpatialDDoc == nullptr)
GetSpatialView();
if( pszSpatialDDoc == nullptr )
return;
CPLString osURI("/");
osURI += osEscapedName;
osURI += "/";
osURI += pszSpatialDDoc;
json_object* poAnswerObj = poDS->GET(osURI);
if (poAnswerObj == nullptr)
return;
if ( !json_object_is_type(poAnswerObj, json_type_object) )
{
CPLError(CE_Failure, CPLE_AppDefined, "LoadMetadata() failed");
json_object_put(poAnswerObj);
return;
}
json_object* poRev = CPL_json_object_object_get(poAnswerObj, "_rev");
const char* pszRev = json_object_get_string(poRev);
if (pszRev)
osMetadataRev = pszRev;
json_object* poError = CPL_json_object_object_get(poAnswerObj, "error");
const char* pszError = json_object_get_string(poError);
if (pszError && strcmp(pszError, "not_found") == 0)
{
json_object_put(poAnswerObj);
return;
}
if (poDS->IsError(poAnswerObj, "LoadMetadata() failed"))
{
json_object_put(poAnswerObj);
return;
}
json_object* poJsonSRS = CPL_json_object_object_get(poAnswerObj, "srsid");
const char* pszSRS = json_object_get_string(poJsonSRS);
if (pszSRS != nullptr)
{
poSRS = new OGRSpatialReference();
if (poSRS->importFromURN(pszSRS) != OGRERR_NONE)
{
delete poSRS;
poSRS = nullptr;
}
}
json_object* poGeomType = CPL_json_object_object_get(poAnswerObj, "geomtype");
const char* pszGeomType = json_object_get_string(poGeomType);
if (pszGeomType)
{
if (EQUAL(pszGeomType, "NONE"))
{
eGeomType = wkbNone;
bExtentValid = true;
}
else
{
eGeomType = OGRFromOGCGeomType(pszGeomType);
json_object* poIs25D = CPL_json_object_object_get(poAnswerObj, "is_25D");
if (poIs25D && json_object_get_boolean(poIs25D))
eGeomType = wkbSetZ(eGeomType);
json_object* poExtent = CPL_json_object_object_get(poAnswerObj, "extent");
if (poExtent && json_object_get_type(poExtent) == json_type_object)
{
json_object* poBbox = CPL_json_object_object_get(poExtent, "bbox");
if (poBbox &&
json_object_get_type(poBbox) == json_type_array &&
json_object_array_length(poBbox) == 4 &&
OGRCloudantIsNumericObject(json_object_array_get_idx(poBbox, 0)) &&
OGRCloudantIsNumericObject(json_object_array_get_idx(poBbox, 1)) &&
OGRCloudantIsNumericObject(json_object_array_get_idx(poBbox, 2)) &&
OGRCloudantIsNumericObject(json_object_array_get_idx(poBbox, 3)))
{
dfMinX = json_object_get_double(json_object_array_get_idx(poBbox, 0));
dfMinY = json_object_get_double(json_object_array_get_idx(poBbox, 1));
dfMaxX = json_object_get_double(json_object_array_get_idx(poBbox, 2));
dfMaxY = json_object_get_double(json_object_array_get_idx(poBbox, 3));
bExtentValid = true;
bExtentSet = true;
}
}
}
}
json_object* poGeoJSON = CPL_json_object_object_get(poAnswerObj, "geojson_documents");
if (poGeoJSON && json_object_is_type(poGeoJSON, json_type_boolean))
bGeoJSONDocument = CPL_TO_BOOL(json_object_get_boolean(poGeoJSON));
json_object* poFields = CPL_json_object_object_get(poAnswerObj, "fields");
if (poFields && json_object_is_type(poFields, json_type_array))
{
poFeatureDefn = new OGRFeatureDefn( osName );
poFeatureDefn->Reference();
poFeatureDefn->SetGeomType(eGeomType);
if( poFeatureDefn->GetGeomFieldCount() != 0 )
poFeatureDefn->GetGeomFieldDefn(0)->SetSpatialRef(poSRS);
OGRFieldDefn oFieldId("_id", OFTString);
poFeatureDefn->AddFieldDefn(&oFieldId);
OGRFieldDefn oFieldRev("_rev", OFTString);
poFeatureDefn->AddFieldDefn(&oFieldRev);
int nFields = json_object_array_length(poFields);
for(int i=0;i<nFields;i++)
{
json_object* poField = json_object_array_get_idx(poFields, i);
if (poField && json_object_is_type(poField, json_type_object))
{
json_object* poName = CPL_json_object_object_get(poField, "name");
const char* pszName = json_object_get_string(poName);
if (pszName)
{
json_object* poType = CPL_json_object_object_get(poField, "type");
const char* pszType = json_object_get_string(poType);
OGRFieldType eType = OFTString;
if (pszType)
{
if (strcmp(pszType, "integer") == 0)
eType = OFTInteger;
else if (strcmp(pszType, "integerlist") == 0)
eType = OFTIntegerList;
else if (strcmp(pszType, "real") == 0)
eType = OFTReal;
else if (strcmp(pszType, "reallist") == 0)
eType = OFTRealList;
else if (strcmp(pszType, "string") == 0)
eType = OFTString;
else if (strcmp(pszType, "stringlist") == 0)
eType = OFTStringList;
}
OGRFieldDefn oField(pszName, eType);
poFeatureDefn->AddFieldDefn(&oField);
}
}
}
}
std::sort(aosIdsToFetch.begin(), aosIdsToFetch.end());
json_object_put(poAnswerObj);
return;
}
