code: @VisibleForTesting
  	protected Optional<CounterData> getCounterData(final String counterName)
  	{
  		Preconditions.checkNotNull(counterName);
  
  		final Key<CounterData> counterKey = CounterData.key(counterName);
  		final CounterData counterData = ObjectifyService.ofy().load().key(counterKey).now();
  
  		return Optional.fromNullable(counterData);
  	}
docs: Helper method to get the {@link CounterData} associated with the supplied {@code counterName}.
  
  @param counterName
  @return