func()

in client/session.go [159:204]

• 42 lines of code
• 8 McCabe index (conditional complexity)

func (s *Session) OpenCluster(enableRPCCompression bool) error {
	if s.config.FetchSize <= 0 {
		s.config.FetchSize = DefaultFetchSize
	}
	if s.config.TimeZone == "" {
		s.config.TimeZone = DefaultTimeZone
	}

	if s.config.ConnectRetryMax <= 0 {
		s.config.ConnectRetryMax = DefaultConnectRetryMax
	}

	var err error

	s.protocolFactory = getProtocolFactory(enableRPCCompression)
	iprot := s.protocolFactory.GetProtocol(s.trans)
	oprot := s.protocolFactory.GetProtocol(s.trans)
	s.client = rpc.NewIClientRPCServiceClient(thrift.NewTStandardClient(iprot, oprot))
	req := rpc.TSOpenSessionReq{
		ClientProtocol: rpc.TSProtocolVersion_IOTDB_SERVICE_PROTOCOL_V3, ZoneId: s.config.TimeZone, Username: s.config.UserName,
		Password: &s.config.Password,
	}
	req.Configuration = make(map[string]string)
	req.Configuration["sql_dialect"] = s.config.sqlDialect
	if s.config.Version == "" {
		req.Configuration["version"] = string(DEFAULT_VERSION)
	} else {
		req.Configuration["version"] = string(s.config.Version)
	}
	if s.config.Database != "" {
		req.Configuration["db"] = s.config.Database
	}

	resp, err := s.client.OpenSession(context.Background(), &req)
	if err != nil {
		return err
	}
	if timeFactor, err := getTimeFactor(resp); err != nil {
		return err
	} else {
		s.timeFactor = timeFactor
	}
	s.sessionId = resp.GetSessionId()
	s.requestStatementId, err = s.client.RequestStatementId(context.Background(), s.sessionId)
	return err
}