code: @Override
  	public String getOperationMode() {
  		String mode = getNode().getOperationMode();
  		if(mode != null && NORMAL.equals(mode.toUpperCase())) {
  			mode = NORMAL;
  		}
  		return mode;
  	}
docs: The operation mode of the Cassandra node.
  
  @return one of: NORMAL, CLIENT, JOINING, LEAVING, DECOMMISSIONED, MOVING,
  DRAINING, or DRAINED.