if (search.getSensorId() == null && search.getContainerId() != null) {
            if(search.getClassCode() != null){
                restriction = Restrictions.and(
                        Restrictions.tag("containerId").equal(search.getContainerId()),
                        Restrictions.tag("classCode").equal(search.getClassCode()),
                        Restrictions.measurement().equal("data")
                );
            }else {
                restriction = Restrictions.and(
                        Restrictions.tag("containerId").equal(search.getContainerId()),
                        Restrictions.measurement().equal("data")
                );
            }
        }

@controller
public class Controller{
     public ClassA method(){
         private InfluxDBClient influxDBClient = InfluxDBClientFactory.create(connectionUrl, token.toCharArray(), orgId);
         ...
        
         List<ClassA> results = queryApi.query(flux.toString(), ClassA.class);
         influxConnectService.close();        
     }
}