60 lines
1.3 KiB
C#
60 lines
1.3 KiB
C#
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using InnovEnergy.S3.Metadata;
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using InnovEnergy.S3.Records;
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using InnovEnergy.S3.Records.Operations;
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using InnovEnergy.Lib.Utils;
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namespace InnovEnergy.S3.Drivers.Internal.Util;
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public class Aggregator
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{
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public AggregationLevel AggregationLevel { get; }
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private Record[] Buffer { get; }
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private UInt32 Index { get; set; }
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public Aggregator(AggregationLevel thisLevel,
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AggregationLevel levelBelow,
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IEnumerable<Record> initialRecords)
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{
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var ratio = thisLevel.SamplePeriod / levelBelow.SamplePeriod;
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AggregationLevel = thisLevel;
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Index = 0;
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Buffer = new Record[ratio];
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Clear();
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foreach (var record in initialRecords)
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Aggregate(record);
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}
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public Record? Aggregate(Record r)
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{
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Buffer[Index++] = r;
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return IsFull
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? ForceAggregation()
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: null;
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}
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public Record? ForceAggregation()
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{
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if (IsEmpty)
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return null; // nothing to aggregate
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var aggregated = Buffer.Aggregate();
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Clear();
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return aggregated;
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}
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private void Clear()
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{
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Buffer.Fill(Record.Empty);
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Index = 0;
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}
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private Boolean IsFull => Index == Buffer.Length;
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private Boolean IsEmpty => Index == 0;
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}
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