code: private static String getKunderaClientToLookupClass(String client)
      {
  
          Datasource datasource;
          try
          {
              datasource = Datasource.valueOf(client.toUpperCase());
          }
          catch (IllegalArgumentException ex)
          {
              LOGGER.error(client + " is not supported!", ex);
              throw new KunderaException(client + " is not supported!", ex);
          }
  
          return clientNameToFactoryMap.get(datasource);
      }
docs: Gets the kundera client to lookup class.
  
  @param client
  the client
  @return the kundera client to lookup class