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feat(focas): CNC alarms reach Part 9 conditions via ALARM: tags (#647)

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An ALARM: address (*, <Type>, <Type>/<n>, <Type>/<lo>-<hi>, T<code>, OTHER) on a raw tag that
also carries the cross-driver alarm object is ONE condition with ConditionId == RawPath and a
Kind (Raise / Retrigger / Clear), so DriverHostActor.ForwardNativeAlarm routes it and
NativeAlarmProjector activates it. Fixes all seven triage defects:

1. SubscribeAlarmsAsync treated the host's RawPaths as device hosts -> nothing polled.
2. Decorated "{host}#{Type}:{Number}" ConditionId -> every event dropped.
3. No Kind -> projector kept prior state.
4. WireFocasClient.ReadAlarmsAsync answered [] on failure -> mass clear + un-acked re-raise.
   It now throws; a failed device read keeps every condition's state.
5. Acks lost on reconnect -> told-record dedup (MTConnect #626 pattern) held for the driver's
   lifetime; same-set re-subscribe / re-init re-raise nothing; changed set prunes leavers only.
6. Subscribe threw while AlarmProjection.Enabled=false -> the tag is the opt-in; flag is a no-op.
7. Alarm tags could not be authored -> ALARM: grammar (FocasAlarmSelector, Contracts) backs the
   editor, the address picker, the deploy-time inspector and driver init.

Severity: authored alarm.severity -> exact OpcUaSeverity; else the 16i-era type bucket. The type
table stays the only one (moved to Contracts, documented 16i-era; 30i codes not invented; raw
T<code> selector + raw code in every message). Read-only: ack is server-side. Also clears the
value table on a re-initialise (#630 gap that let a removed/moved tag keep reading).

E2E: Runtime.Tests FocasNativeAlarmEndToEndTests drives the real driver through the real
DriverHostActor and asserts the condition goes Active then inactive.

Claude-Session: https://claude.ai/code/session_01Ef2ozxS7QPanGT8uoATbTe
This commit is contained in:
Joseph Doherty
2026-10-08 19:46:48 -04:00
parent 8801631739
commit 482bafdfac
27 changed files with 2110 additions and 515 deletions
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tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.Tests/FakeFocasClient.cs
+21 -2
View File
@@ -123,10 +123,29 @@ internal class FakeFocasClient : IFocasClient
/// <summary>Gets the list of active alarms.</summary>
public List<FocasActiveAlarm> Alarms { get; } = [];
/// <summary>Gets or sets a value indicating whether the alarm read throws (Gitea #647: a failed read).</summary>
public bool ThrowOnReadAlarms { get; set; }
/// <summary>Gets the number of alarm reads served (successful or not).</summary>
public int AlarmReadCount => Volatile.Read(ref _alarmReadCount);
private int _alarmReadCount;
/// <summary>Replaces the active alarm list atomically with respect to the poll thread.</summary>
/// <param name="alarms">The new active alarms.</param>
public void SetAlarms(params FocasActiveAlarm[] alarms)
{
lock (Alarms) { Alarms.Clear(); Alarms.AddRange(alarms); }
}
/// <summary>Reads active alarms asynchronously.</summary>
/// <param name="ct">The cancellation token.</param>
public virtual Task<IReadOnlyList<FocasActiveAlarm>> ReadAlarmsAsync(CancellationToken ct) =>
Task.FromResult<IReadOnlyList<FocasActiveAlarm>>([.. Alarms]);
public virtual Task<IReadOnlyList<FocasActiveAlarm>> ReadAlarmsAsync(CancellationToken ct)
{
Interlocked.Increment(ref _alarmReadCount);
if (ThrowOnReadAlarms) throw new InvalidOperationException("cnc_rdalmmsg2 failed (fake)");
lock (Alarms) return Task.FromResult<IReadOnlyList<FocasActiveAlarm>>([.. Alarms]);
}
// ---- Fixed-tree T1 ----
/// <summary>Gets or sets the system information.</summary>