Datum convert_element<std::string>(PG_FUNCTION_ARGS, const mongo::BSONElement e) { std::stringstream ss; switch(e.type()) { case mongo::String: case mongo::DBRef: case mongo::Symbol: return return_string(std::string(e.valuestr(), e.valuestrsize()-1)); case mongo::NumberDouble: ss << e._numberDouble(); break; case mongo::jstOID: ss << e.__oid().str(); break; case mongo::Bool: ss << std::boolalpha << e.boolean(); break; case mongo::Date: return return_string( to_iso_extended_string( boost::posix_time::ptime( boost::gregorian::date(1970, 1, 1), boost::posix_time::milliseconds(e.date().millis) ) ) ); case mongo::RegEx: ss << e.regex(); break; case mongo::NumberInt: ss << e._numberInt(); break; case mongo::NumberLong: ss << e._numberLong(); break; default: throw convertion_error("text"); } return return_string(ss.str()); }
void buildJsonString(const mongo::BSONElement &elem,std::string &con, UUIDEncoding uuid, SupportedTimes tz) { switch (elem.type()) { case NumberDouble: { char dob[32] = {0}; sprintf(dob, "%f", elem.Double()); con.append(dob); } break; case String: { con.append(elem.valuestr(), elem.valuestrsize() - 1); } break; case Object: { buildJsonString(elem.Obj(), con, uuid, tz); } break; case Array: { buildJsonString(elem.Obj(), con, uuid, tz); } break; case BinData: { mongo::BinDataType binType = elem.binDataType(); if (binType == mongo::newUUID || binType == mongo::bdtUUID) { std::string uu = HexUtils::formatUuid(elem, uuid); con.append(uu); break; } con.append("<binary>"); } break; case Undefined: con.append("<undefined>"); break; case jstOID: { std::string idValue = elem.OID().toString(); char buff[256] = {0}; sprintf(buff, "ObjectId(\"%s\")", idValue.c_str()); con.append(buff); } break; case Bool: con.append(elem.Bool() ? "true" : "false"); break; case Date: { long long ms = (long long) elem.Date().millis; boost::posix_time::ptime epoch(boost::gregorian::date(1970,1,1)); boost::posix_time::time_duration diff = boost::posix_time::millisec(ms); boost::posix_time::ptime time = epoch + diff; std::string date = miutil::isotimeString(time,false,tz==LocalTime); con.append(date); break; } case jstNULL: con.append("<null>"); break; case RegEx: { con.append("/" + std::string(elem.regex()) + "/"); for ( const char *f = elem.regexFlags(); *f; ++f ) { switch ( *f ) { case 'g': case 'i': case 'm': con+=*f; default: break; } } } break; case DBRef: break; case Code: con.append(elem._asCode()); break; case Symbol: con.append(elem.valuestr(), elem.valuestrsize() - 1); break; case CodeWScope: { mongo::BSONObj scope = elem.codeWScopeObject(); if (!scope.isEmpty() ) { con.append(elem._asCode()); break; } } break; case NumberInt: { char num[16]={0}; sprintf(num,"%d",elem.Int()); con.append(num); break; } case Timestamp: { Date_t date = elem.timestampTime(); unsigned long long millis = date.millis; if ((long long)millis >= 0 && ((long long)millis/1000) < (std::numeric_limits<time_t>::max)()) { con.append(date.toString()); } break; } case NumberLong: { char num[32]={0}; sprintf(num,"%lld",elem.Long()); con.append(num); break; } default: con.append("<unsupported>"); break; } }