Joseph Doherty
8c6d6aff6a
Moves the database-independent logic of the SQL Server historian backend into a new shared library for the upcoming QuestDB backend (#666): status codes and bits, value/column mapping, StoredSample + quality clamp, the AtTime and aggregate evaluators, BucketPlan, LiveWritePreparer and HistoryUpdatePlanner (both with a resolutionTicks parameter, default 1), tag-name rules, the bootstrap failure cache, health counters, alarm event ids, the event continuation and severity clamp. The SQL Server backend now calls it; its T-SQL, TVP builders, connection, bootstrapper and catalog stay. Tests: StatusCodeOracleTests, ValueWriterPrepareTests, the column half of SampleRowMapperTests and ProcessedReadTests.Every_enum_member_is_either_served_or_refused move to the new Sql.Common.Tests under the same names. SqlServer integration tests get mechanical renames only. Test-name set across the three projects is identical to the baseline (160 tests). Claude-Session: https://claude.ai/code/session_01Ef2ozxS7QPanGT8uoATbTe
12 lines
639 B
C#
12 lines
639 B
C#
namespace ZB.MOM.WW.OtOpcUa.Driver.Historian.Sql.Common;
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/// <summary>The opaque Events continuation point of the SQL historian backends (only its presence is contractual).</summary>
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public static class EventContinuation
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{
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/// <summary>Encodes the first not-returned event as <c>"{EventTimeUtc.Ticks}|{EventId}"</c>.</summary>
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/// <param name="eventTimeUtc">The event's time.</param>
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/// <param name="eventId">The event's id.</param>
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/// <returns>The continuation text (callers send its UTF-8 bytes).</returns>
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public static string Encode(DateTime eventTimeUtc, string eventId) => $"{eventTimeUtc.Ticks}|{eventId}";
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}
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