fix(historian-gateway): historize under the historian name, not the mux ref, when HistorianTagname overrides (FU-3)

The continuous-historization recorder conflated two identifiers into one string:
the dependency mux fans DependencyValueChanged keyed by the driver FullName
(the mux ref), but a value must be historized under the resolved historian name
(HistorianTagname override, else FullName). In the common no-override case the
two are equal, so it worked; with an override they diverge and the recorder
registered mux interest under a key the mux never fans — that tag's values were
never captured (and, had they been, would have been written under the mux ref).

Carry BOTH identifiers through the seam: a new HistorizedTagRef(MuxRef,
HistorianName) record on IHistorizedTagSubscriptionSink. The applier resolves
MuxRef = FullName and HistorianName = override-or-FullName. The recorder now
keeps a muxRef->historianName map: it registers/filters mux interest by MuxRef
but writes the outbox entry (and drains) under HistorianName. The convergence
handler re-registers the mux only when the registered key-set changes, so an
override-only rename (same FullName) updates the write target without mux churn.

Tests: a divergent-override recorder test (interest by mux ref, value written
under the override name, never the mux ref) + an override-rename no-churn test;
the applier feed tests now assert the full (mux ref, historian name) pairs.
Runtime 348/0, OpcUaServer 327/0; 0 warnings. Closes FU-3.

Claude-Session: https://claude.ai/code/session_012SDSQ3AcaXqPcBtDESBRii
This commit is contained in:
Joseph Doherty
2026-06-27 00:43:28 -04:00
parent b2276b5b04
commit 111adc92b6
6 changed files with 203 additions and 61 deletions
@@ -147,17 +147,17 @@ public sealed class AddressSpaceApplierProvisioningTests
/// ref deltas the applier feeds it. A <see cref="Throw"/> flag simulates a faulting feed.</summary>
private sealed class CapturingSubscriptionSink : IHistorizedTagSubscriptionSink
{
/// <summary>Refs the applier fed as ADDED.</summary>
public List<string> Added { get; } = new();
/// <summary>Ref pairs the applier fed as ADDED (mux ref + historian name).</summary>
public List<HistorizedTagRef> Added { get; } = new();
/// <summary>Refs the applier fed as REMOVED.</summary>
public List<string> Removed { get; } = new();
/// <summary>Ref pairs the applier fed as REMOVED.</summary>
public List<HistorizedTagRef> Removed { get; } = new();
/// <summary>When true, <see cref="UpdateHistorizedRefs"/> throws synchronously.</summary>
public bool Throw { get; init; }
/// <inheritdoc />
public void UpdateHistorizedRefs(IReadOnlyList<string> added, IReadOnlyList<string> removed)
public void UpdateHistorizedRefs(IReadOnlyList<HistorizedTagRef> added, IReadOnlyList<HistorizedTagRef> removed)
{
if (Throw) throw new InvalidOperationException("boom");
Added.AddRange(added);
@@ -182,7 +182,13 @@ public sealed class AddressSpaceApplierProvisioningTests
applier.Apply(plan);
sink.Added.ShouldBe(new[] { "Pump1.Temp", "40001" }, ignoreOrder: true); // override + FullName fallback
// Each ref carries BOTH identifiers: the override tag feeds (mux ref = FullName "ref", historian
// name = override "Pump1.Temp"); the no-override tag feeds (FullName "40001" as both).
sink.Added.ShouldBe(new[]
{
new HistorizedTagRef("ref", "Pump1.Temp"),
new HistorizedTagRef("40001", "40001"),
}, ignoreOrder: true);
sink.Removed.ShouldBeEmpty();
}
@@ -218,8 +224,14 @@ public sealed class AddressSpaceApplierProvisioningTests
applier.Apply(plan);
sink.Added.ShouldBe(new[] { "Pump1.B" }, ignoreOrder: true);
sink.Removed.ShouldBe(new[] { "Pump1.Old", "Pump1.A" }, ignoreOrder: true);
// All three tags default FullName "ref" (the mux ref); the override rename changes only the
// historian name, so the changed tag feeds removed (ref, Pump1.A) + added (ref, Pump1.B).
sink.Added.ShouldBe(new[] { new HistorizedTagRef("ref", "Pump1.B") }, ignoreOrder: true);
sink.Removed.ShouldBe(new[]
{
new HistorizedTagRef("ref", "Pump1.Old"),
new HistorizedTagRef("ref", "Pump1.A"),
}, ignoreOrder: true);
}
/// <summary>A synchronously-throwing subscription sink must NOT block or break the publish — the