50 lines
1.6 KiB
C#
50 lines
1.6 KiB
C#
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using InnovEnergy.S3.Drivers.Internal.Delegates;
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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 IReadOnlyList<AggregationLevel> AggregationLevels { get; }
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public UnixTimeSpan SamplePeriod => AggregationLevels[0].SamplePeriod;
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private readonly ReadRecord _ReadRecord;
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internal Reader(IReadOnlyList<AggregationLevel> levels, ReadRecord readRecord)
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{
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_ReadRecord = readRecord;
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AggregationLevels = InitLevels(levels);
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}
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public Task<TimeStampedRecord> ReadRecord(AggregationLevel level, UInt32 index)
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{
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return _ReadRecord(level, index);
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}
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private static IReadOnlyList<AggregationLevel> InitLevels(IReadOnlyList<AggregationLevel> levels)
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{
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if (!levels.Any())
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throw new ArgumentOutOfRangeException(nameof(levels));
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levels = levels
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.OrderBy(l => l.SamplePeriod.Ticks)
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.ToReadOnlyList(levels.Count);
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var pairwise = levels
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.Select(l => l.SamplePeriod)
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.Pairwise()
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.ToReadOnlyList(levels.Count - 1);
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var greater = pairwise.Any(ls => ls.right <= ls.left);
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var multiple = pairwise.Any(ls => ls.right % ls.left != 0 );
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var retention = levels .Any(l => l.RetentionPeriod % l.SamplePeriod != 0);
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if (greater || multiple || retention)
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throw new ArgumentException(nameof(levels)); // TODO: error messages
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return levels;
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}
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}
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