37 lines
1.1 KiB
C#
37 lines
1.1 KiB
C#
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using InnovEnergy.S3.Metadata;
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using InnovEnergy.S3.Records.Specialized;
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using InnovEnergy.Time.Unix;
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using InnovEnergy.Lib.Utils;
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namespace InnovEnergy.S3.Drivers.Internal;
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public partial class Reader
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{
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public Task<IReadOnlyList<TimeStampedRecord>> ReadRecords(UnixTime from, UnixTime to, Int32 minNumber)
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{
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var maxDt = (to - from) / minNumber;
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return ReadRecords(from, to, maxDt);
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}
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public async Task<IReadOnlyList<TimeStampedRecord>> ReadRecords(UnixTime from, UnixTime to, UnixTimeSpan maxDt)
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{
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if (maxDt < SamplePeriod)
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maxDt = SamplePeriod;
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var level = AggregationLevels.LastOrDefault(l => l.SamplePeriod <= maxDt) ?? AggregationLevels[^1];
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return await level
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.RangeExclusive(from, to)
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.Select(t => ReadRecord(level, t))
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.WhenAll();
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}
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public async Task<TimeStampedRecord> ReadRecord(AggregationLevel level, UnixTime time)
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{
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var tsRecord = await ReadRecord(level, level.GetRetentionIndex(time));
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return tsRecord.TimeStamp == time
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? tsRecord
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: TimeStampedRecord.Empty(time);
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}
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}
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