code: private static String normalizeClusterUrl(String clusterIdentifier) {
      try {
        URI uri = new URI(clusterIdentifier.trim());
        // URIs without protocol prefix
        if (!uri.isOpaque() && null != uri.getHost()) {
          clusterIdentifier = uri.getHost();
        } else {
          clusterIdentifier = uri.toString().replaceAll("[/:]"," ").trim().replaceAll(" ", "_");
        }
      } catch (URISyntaxException e) {
        //leave ID as is
      }
  
      return clusterIdentifier;
    }
docs: Strip out the port number if it is a valid URI