code: public static HelixManager buildHelixManager(String helixInstanceName, String helixClusterName, String zkConnectionString) {
      return HelixManagerFactory.getZKHelixManager(helixClusterName, helixInstanceName,
          InstanceType.CONTROLLER, zkConnectionString);
    }
docs: *
  Build a Helix Manager (Helix Controller instance).
  
  @param helixInstanceName the Helix Instance name.
  @param helixClusterName the Helix Cluster name.
  @param zkConnectionString the ZooKeeper connection string.
  @return HelixManager