Opc.Ua.Server.CountAggregateCalculator.ComputeCount C# (CSharp) Method

        protected DataValue ComputeCount(TimeSlice slice)
        {
            // get the values in the slice.
            List<DataValue> values = GetValues(slice);

            // check for empty slice.
            if (values == null)
            {
                return GetNoDataValue(slice);
            }

            // count the values.
            int count = 0;

            for (int ii = 0; ii < values.Count; ii++)
            {
                if (StatusCode.IsGood(values[ii].StatusCode))
                {
                    count++;
                }
            }

            // set the timestamp and status.
            DataValue value = new DataValue();
            value.WrappedValue = new Variant(count, TypeInfo.Scalars.Int32);
            value.SourceTimestamp = GetTimestamp(slice);
            value.ServerTimestamp = GetTimestamp(slice);           
            value.StatusCode = value.StatusCode.SetAggregateBits(AggregateBits.Calculated);
            value.StatusCode = GetValueBasedStatusCode(slice, values, value.StatusCode);

            // return result.
            return value;
        }