Samuele Locatelli
76 lines
3.2 KiB
C#
76 lines
3.2 KiB
C#
/* ========================================================================
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* Copyright (c) 2005-2020 The OPC Foundation, Inc. All rights reserved.
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*
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* OPC Foundation MIT License 1.00
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use,
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* copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following
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* conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* The complete license agreement can be found here:
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* http://opcfoundation.org/License/MIT/1.00/
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* ======================================================================*/
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using System;
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using System.Collections.Generic;
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using System.Text;
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using System.Globalization;
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namespace Opc.Ua.Aggregates
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{
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/// <summary>
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/// Calculates interpolated values.
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/// </summary>
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/// <remarks>
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/// To correctly get the interpolated value, the raw data passed to this aggregator needs to have "GOOD" boundary values. That means, it's
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/// the user responsibility to find out a good value before/after the period of interest if the bounding values of that period are not good.
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/// </remarks>
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public class InterpolativeAggregate : FloatInterpolatingCalculator
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{
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/// <summary>
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/// Updates the bounding values.
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/// </summary>
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public override void UpdateBoundingValues(TimeSlice bucket, AggregateState state)
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{
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base.UpdateBoundingValues(bucket, state);
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UpdatePriorPoint(bucket.EarlyBound, state);
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}
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/// <summary>
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/// Updates the value for the time slice.
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/// </summary>
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public override DataValue Compute(IAggregationContext context, TimeSlice bucket, AggregateState state)
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{
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DataValue retval = new DataValue { SourceTimestamp = bucket.From };
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StatusCode code = StatusCodes.BadNoData;
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DataValue boundValue = context.IsReverseAggregation ? bucket.LateBound.Value : bucket.EarlyBound.Value;
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if (boundValue != null)
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{
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code = bucket.EarlyBound.Value.StatusCode.Code;
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code.AggregateBits = bucket.EarlyBound.Value.StatusCode.AggregateBits;
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retval.Value = Convert.ToDouble(bucket.EarlyBound.Value.Value, CultureInfo.InvariantCulture);
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}
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if (bucket.Incomplete) code.AggregateBits |= AggregateBits.Partial;
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retval.StatusCode = code;
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return retval;
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}
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}
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}
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