diff --git a/docs/AlarmTracking.md b/docs/AlarmTracking.md
index 6504c719..85f6365c 100644
--- a/docs/AlarmTracking.md
+++ b/docs/AlarmTracking.md
@@ -292,8 +292,9 @@ branches on native-ness and routes through a dedicated path — separate
from the scripted `AlarmCommandRouter`:
1. **`OtOpcUaNodeManager.HandleNativeAlarmAck`** — gates on the caller's
- `AlarmAck` role (fails closed: no role → `BadUserAccessDenied`), then
- dispatches a `NativeAlarmAck(ConditionNodeId, Comment, OperatorUser)`
+ `AlarmAck` role (fails closed: no role → `BadUserAccessDenied`), then on the
+ node's redundancy role (not the Primary → `BadInvalidState`, see
+ §"Acknowledge on a non-Primary node" below), then dispatches a `NativeAlarmAck(ConditionNodeId, Comment, OperatorUser)`
to the `NativeAlarmAckRouter` seam (fire-and-forget, non-blocking under
the node-manager Lock). `OperatorUser` carries the authenticated
session principal's display name.
@@ -331,20 +332,38 @@ projection's Retain rule, `Active || !Acked`) after the SDK handler, before the
one ack event. ScadaBridge maps `ConfirmedState` into its alarm state, so this
is client-visible.
-> **Secondary-node ack flap.** On a node that is not the redundancy Primary,
-> an OPC UA Acknowledge is applied to the local condition and reported (one
-> event, Acked), but `DriverHostActor`'s Primary gate drops the route upstream.
-> The driver never acknowledges, so its next transition for that alarm is
-> projected with `Acked = false` and the node reverts — with its own event. A
-> client acking against the Secondary sees acked → unacked. Ack against the
-> Primary (the higher ServiceLevel) for the ack to stick.
+> **Acknowledge on a non-Primary node is refused** (Gitea #597). On a node
+> that is not the redundancy Primary, an OPC UA Acknowledge of a **native**
+> condition returns **`BadInvalidState`** ("not the redundancy Primary;
+> acknowledge on the Primary") — nothing is routed, applied or reported. The
+> verdict is the same data-plane one the device-write gate and
+> `DriverHostActor`'s ack route use (`PrimaryGatePolicy.ShouldServiceAsPrimary`,
+> published to `IDriverPrimaryRoleSource` on every redundancy snapshot and
+> wired onto the node manager by `OtOpcUaServerHostedService`). It is checked
+> after authorization, so a caller who may not ack learns nothing about the
+> node's role.
+>
+> This replaces a documented flap: the Secondary used to apply and report the
+> ack locally while `DriverHostActor` dropped the route upstream, so the driver
+> never acknowledged, its next transition projected `Acked = false`, and the
+> client saw acked → unacked. An honest refusal is client-visible — a client
+> (ScadaBridge included) that acks against the Secondary now gets a Bad result
+> instead of a Good that later reverts — so ack against the Primary (the higher
+> ServiceLevel). Scripted conditions are **not** gated: their engine runs on
+> both nodes, so an ack on the Secondary is real. Residual: the published
+> verdict changes only on a redundancy snapshot, so in the boot window of a
+> multi-node cluster (no snapshot yet) the node still accepts, while
+> `DriverHostActor`'s live check may drop the route — the old flap, limited to
+> that window.
> **Best-effort during reconnect.** If a native ack arrives while the owning
-> driver is `Connecting`/`Reconnecting` (or on a non-Primary node), it is
-> dropped with a debug log and **not** retried upstream — the OPC UA Part 9
-> `AlarmConditionState` was already committed locally at step 1, so the rare
-> outcome is "acked locally but not propagated to AVEVA." Re-issue the ack once
-> the driver is reconnected if upstream propagation is required.
+> driver is `Connecting`/`Reconnecting` (or, in the boot window above, on a
+> node whose role is not yet known), it is dropped with a debug log and **not**
+> retried upstream — the OPC UA Part 9 `AlarmConditionState` was already
+> committed locally at step 1, so the rare outcome is "acked locally but not
+> propagated to AVEVA." Re-issue the ack once the driver is reconnected if
+> upstream propagation is required — a re-ack of a node already showing Acked
+> is still routed to the driver for exactly this reason.
### Legacy sub-attribute path
@@ -412,8 +431,9 @@ reports nothing.
`AreEventsMonitored` bookkeeping, which is imprecise for conditions
materialised under an already-subscribed folder.
- **The SDK's shelve methods never apply shelving state** (they only call
- `OnShelve`), so the wrapper applies it — with the same
- `(shelved, oneShot, 0)` mapping the projection uses — before reporting.
+ `OnShelve`), so the wrapper applies it — with the same `(shelved, oneShot)`
+ mapping the projection uses, and a TimedShelve with its requested duration —
+ before reporting.
- **The re-projection does not duplicate it.** The engine's (or driver's)
answer to the routed command reaches `WriteAlarmCondition`'s delta-gate,
which compares against the node's current state — already the new state —
@@ -425,7 +445,16 @@ reports nothing.
nothing. The SDK accepts acknowledging an acknowledged condition and sets
`Confirmed = false` again, so a re-ack also restores the pre-call Confirmed
and Retain — silent, and a scripted node never drifts from its engine.
- AddComment always reports (the comment is the change).
+ AddComment always reports (the comment is the change), and so does a re-ack
+ **carrying a comment** (Gitea #597): the SDK writes that comment to the node,
+ so it is reported once, with Acked/Confirmed unchanged. Before #597 the
+ comment landed on the node but no subscriber ever saw it.
+- **A native re-ack is still routed to the driver** (deliberate, #597). The
+ route is fire-and-forget, so a node showing Acked does not prove the
+ upstream system acknowledged — an ack dropped during a reconnect leaves
+ exactly that state — and re-acking is the documented retry (§"Best-effort
+ during reconnect"). The cost is a duplicate ack upstream for an alarm that
+ was already acknowledged there.
- **Native conditions: Acknowledge and AddComment only** — see §"Native alarm
acknowledge → AVEVA" above. The other methods are refused
(`BadNotSupported`, no event), and a native ack keeps the condition
@@ -433,9 +462,26 @@ reports nothing.
- **TimedShelve works (scripted).** `Create()` left `MaxTimeShelved` at 0, and
the SDK rejects any shelving time above it, so every client TimedShelve
failed with `BadShelvingTimeOutOfRange`. It is now `int.MaxValue` ms (≈24.8
- days). The node applies the shelve with no SDK timer of its own; the engine
- owns the expiry and its Unshelved re-projection reports the one expiry
- event.
+ days). The engine owns the expiry and its Unshelved re-projection reports
+ the one expiry event.
+- **`UnshelveTime` is the real remaining time** (Gitea #597). Both the method
+ path and the projection used to apply a timed shelve with `shelvingTime 0`,
+ which the SDK reads as `MaxTimeShelved` — so every timed shelve advertised
+ ≈24.8 days remaining. The method now applies the requested duration, and the
+ engine's projection carries its expiry (`AlarmConditionSnapshot.UnshelveAtUtc`),
+ so `ShelvingState/UnshelveTime` counts down to the engine's expiry whichever
+ path shelved it (the AdminUI `/alerts` timed shelve included). This arms the
+ SDK's own unshelve timer at the real instant; it changes no node state and
+ only routes an `Unshelve` (user `system`) back to the engine — a no-op if the
+ engine's 5 s expiry sweep got there first, otherwise it simply lands the
+ expiry on time.
+- **Accepted, not fixed — the SDK's `EventsMonitored` unit for late conditions**
+ (Gitea #597 item 6, from the #586 review). The SDK's `AreEventsMonitored`
+ counter never reaches a condition materialised under a folder that already had
+ an event subscriber. Our own reporting does not depend on it (above); the one
+ thing it still gates is the SDK's method **audit** event, and only while the
+ server is auditing — which no configuration in this repo enables. Closed as
+ accepted.
- Method **audit** events (`AuditConditionAcknowledgeEventType`, …) are still
the SDK's, delivered only while the server is auditing over an encrypted
channel.
diff --git a/docs/Raw.md b/docs/Raw.md
index 4272ee99..f855f8de 100644
--- a/docs/Raw.md
+++ b/docs/Raw.md
@@ -105,9 +105,18 @@ mirror **in place** (its MonitoredItems survive); a re-point or effective-name c
removes and recreates **that one mirror node**. See [`Uns.md`](Uns.md) and
[`plans/2026-08-15-surgical-deploys.md`](plans/2026-08-15-surgical-deploys.md).
-⚠️ A surgically added raw container/tag is materialised but **not** announced —
-`AnnounceAddedNodes` is UNS-only, so model-aware clients see new raw nodes on their next
-browse. This mattered less when every add forced a rebuild (and therefore a re-browse).
+A surgically added raw container/tag is **announced** (Gitea #599): `AnnounceAddedNodes`
+raises a `GeneralModelChangeEvent(NodeAdded)` in the **Raw** realm for each distinct
+existing parent of the added nodes (a parent that is itself new in the same deploy is
+skipped — its own parent is announced, and a re-browse there finds the whole new subtree;
+a new top-level folder announces itself). UNS-side adds announce in the Uns realm as
+before. Until #599 raw adds were materialised but never announced, so model-aware clients
+only saw them on their next browse — invisible while every add still forced a rebuild.
+
+Removing an equipment that holds UNS references is also surgical: the references are
+removed (terminal Bad, then `RemoveVariableNode`, which severs the backing raw node's
+inverse `Organizes` edge) **before** the equipment subtree, and the subtree removal severs
+the same edge for anything it reaches itself (archreview 03/P5 + 03/S20).
## The `Calculation` driver
diff --git a/docs/ScriptedAlarms.md b/docs/ScriptedAlarms.md
index ce2717f3..9b2c467c 100644
--- a/docs/ScriptedAlarms.md
+++ b/docs/ScriptedAlarms.md
@@ -358,7 +358,7 @@ On allow, the handler publishes a `Commons.OpcUa.AlarmCommand` (containing comma
### Delta-gate de-duplication
-`WriteAlarmCondition` fires a Part 9 condition event only when the incoming state differs from the node's current live state. For an OPC UA method call (Acknowledge, Confirm, AddComment, the shelve methods, Enable/Disable) the SDK applies the new state to the node, and the node manager then reports **the one** condition event for it from the method path (Gitea #587 — the SDK reports none of its own, since `AutoReportStateChanges` stays false; the shelve methods' state is applied by the node manager, because the SDK's never applies it; a call that changed nothing — e.g. a re-ack — reports nothing). Native (driver-fed) conditions support only Acknowledge and AddComment; their Confirm, shelve and Enable/Disable methods return `BadNotSupported`. The engine's later re-projection of the same transition finds the node already in that state and is suppressed, so each accepted call yields exactly one event. See `docs/AlarmTracking.md` §"One condition event per method call".
+`WriteAlarmCondition` fires a Part 9 condition event only when the incoming state differs from the node's current live state. For an OPC UA method call (Acknowledge, Confirm, AddComment, the shelve methods, Enable/Disable) the SDK applies the new state to the node, and the node manager then reports **the one** condition event for it from the method path (Gitea #587 — the SDK reports none of its own, since `AutoReportStateChanges` stays false; the shelve methods' state is applied by the node manager, because the SDK's never applies it; a call that changed nothing — e.g. an uncommented re-ack — reports nothing; a re-ack carrying a comment reports that comment once, Gitea #597). Native (driver-fed) conditions support only Acknowledge and AddComment; their Confirm, shelve and Enable/Disable methods return `BadNotSupported`, and their Acknowledge is refused with `BadInvalidState` on a node that is not the redundancy Primary (Gitea #597). A timed shelve's `UnshelveTime` counts down to the engine's expiry (the projection carries `UnshelveAtUtc`). The engine's later re-projection of the same transition finds the node already in that state and is suppressed, so each accepted call yields exactly one event. See `docs/AlarmTracking.md` §"One condition event per method call".
### AdminUI path
diff --git a/src/Core/ZB.MOM.WW.OtOpcUa.Commons/OpcUa/AlarmConditionSnapshot.cs b/src/Core/ZB.MOM.WW.OtOpcUa.Commons/OpcUa/AlarmConditionSnapshot.cs
index 5fd1b276..1330ce2c 100644
--- a/src/Core/ZB.MOM.WW.OtOpcUa.Commons/OpcUa/AlarmConditionSnapshot.cs
+++ b/src/Core/ZB.MOM.WW.OtOpcUa.Commons/OpcUa/AlarmConditionSnapshot.cs
@@ -24,6 +24,12 @@ namespace ZB.MOM.WW.OtOpcUa.Commons.OpcUa;
/// Carries the full sub-code since #519, so a comms-lost condition reports
/// rather than a bare .
///
+///
+/// For , the UTC instant the engine expires the shelve; otherwise
+/// null. Carried so the node's Part 9 ShelvingState.UnshelveTime reports the real remaining
+/// time instead of the SDK's ~24.8-day ceiling (Gitea #597). A timed snapshot without it (a caller that
+/// predates the field) falls back to that ceiling — the engine still owns the expiry either way.
+///
public sealed record AlarmConditionSnapshot(
bool Active,
bool Acknowledged,
@@ -32,7 +38,8 @@ public sealed record AlarmConditionSnapshot(
AlarmShelvingKind Shelving,
ushort Severity,
string Message,
- uint StatusCode = OpcUaStatus.Good);
+ uint StatusCode = OpcUaStatus.Good,
+ DateTime? UnshelveAtUtc = null);
///
/// Commons-local mirror of the Core ShelvingKind enum so this assembly carries no
diff --git a/src/Server/ZB.MOM.WW.OtOpcUa.Host/OpcUa/OtOpcUaServerHostedService.cs b/src/Server/ZB.MOM.WW.OtOpcUa.Host/OpcUa/OtOpcUaServerHostedService.cs
index 5d4b93b8..95a5251a 100644
--- a/src/Server/ZB.MOM.WW.OtOpcUa.Host/OpcUa/OtOpcUaServerHostedService.cs
+++ b/src/Server/ZB.MOM.WW.OtOpcUa.Host/OpcUa/OtOpcUaServerHostedService.cs
@@ -44,6 +44,7 @@ public sealed class OtOpcUaServerHostedService : IHostedService, IAsyncDisposabl
private readonly ActorRegistry _actorRegistry;
private readonly ILoggerFactory _loggerFactory;
private readonly ILogger _logger;
+ private readonly IDriverPrimaryRoleSource? _primaryRoleSource;
private OpcUaApplicationHost? _appHost;
private OtOpcUaSdkServer? _server;
@@ -88,6 +89,11 @@ public sealed class OtOpcUaServerHostedService : IHostedService, IAsyncDisposabl
/// The shared clock — the one instance the authorizer and the API-key store bound
/// also read. Its CreateTimer arms the revalidation tick.
/// The logger factory for creating loggers.
+ /// Gitea #597 — the data-plane Primary verdict DriverHostActor
+ /// publishes on every redundancy snapshot (the same one its native-ack route and device-write gates apply).
+ /// Wired onto the node manager so a native-condition Acknowledge on a non-Primary node is refused rather than
+ /// applied and then reverted. Optional: a node with no driver role registers none, and null means "allow" —
+ /// the single-node posture UnmanagedDriverPrimaryRoleSource also answers with.
public OtOpcUaServerHostedService(
IOptions options,
DeferredAddressSpaceSink deferredSink,
@@ -101,7 +107,8 @@ public sealed class OtOpcUaServerHostedService : IHostedService, IAsyncDisposabl
DataPlaneAuthorizer? dataPlaneAuthorizer,
IOptions aclOptions,
TimeProvider time,
- ILoggerFactory loggerFactory)
+ ILoggerFactory loggerFactory,
+ IDriverPrimaryRoleSource? primaryRoleSource = null)
{
ArgumentNullException.ThrowIfNull(aclOptions);
ArgumentNullException.ThrowIfNull(time);
@@ -123,6 +130,7 @@ public sealed class OtOpcUaServerHostedService : IHostedService, IAsyncDisposabl
_actorSystemAccessor = actorSystemAccessor;
_actorRegistry = actorRegistry;
_loggerFactory = loggerFactory;
+ _primaryRoleSource = primaryRoleSource;
_logger = loggerFactory.CreateLogger();
}
@@ -225,6 +233,21 @@ public sealed class OtOpcUaServerHostedService : IHostedService, IAsyncDisposabl
}
});
+ // Gitea #597: a native ack is accepted only on the Primary. The verdict is the one DriverHostActor
+ // publishes and gates the route above on, so a Secondary refuses (BadInvalidState) instead of applying an
+ // ack the driver will never see and then reverting it. A volatile property read — safe under the SDK Lock.
+ if (_primaryRoleSource is { } primaryRoleSource)
+ {
+ _server.SetNativeAlarmAckPrimaryGate(() => primaryRoleSource.ShouldActAsPrimary);
+ }
+ else
+ {
+ // Every driver node registers one (AddOtOpcUaRuntime), so this is a wiring regression, not a mode:
+ // say so rather than let a Secondary silently go back to accepting acks it will revert.
+ _logger.LogWarning(
+ "OtOpcUaServerHostedService: no IDriverPrimaryRoleSource registered — native-alarm acknowledges are accepted on every node regardless of redundancy role");
+ }
+
// Wire the reverse-path inbound operator-write gateway: a client write to a writable equipment-tag
// node that passes the node manager's WriteOperate gate routes the write to the owning driver child
// (RouteNodeWrite → NodeWriteResult) via the local DriverHostActor. The node manager calls the
@@ -345,6 +368,7 @@ public sealed class OtOpcUaServerHostedService : IHostedService, IAsyncDisposabl
_server?.SetNodeWriteGateway(null);
// Clear the native-alarm-ack router so a late ack doesn't Tell a stopping DriverHostActor.
_server?.SetNativeAlarmAckRouter(null);
+ _server?.SetNativeAlarmAckPrimaryGate(null);
// Restore the Null historian so a late HistoryRead doesn't hit a disposed read client.
_server?.SetHistorianDataSource(null);
// Restore the empty authority so a late session activation cannot authorize against a stopping node.
diff --git a/src/Server/ZB.MOM.WW.OtOpcUa.OpcUaServer/AddressSpaceApplier.cs b/src/Server/ZB.MOM.WW.OtOpcUa.OpcUaServer/AddressSpaceApplier.cs
index 7693ac45..8358ee60 100644
--- a/src/Server/ZB.MOM.WW.OtOpcUa.OpcUaServer/AddressSpaceApplier.cs
+++ b/src/Server/ZB.MOM.WW.OtOpcUa.OpcUaServer/AddressSpaceApplier.cs
@@ -397,29 +397,40 @@ public sealed class AddressSpaceApplier
if (!SafeRemoveAlarmCondition(surgical, alarm.ScriptedAlarmId, AddressSpaceRealm.Uns)) return false;
}
- // Removed equipment — one subtree teardown each (subsumes their child tags/vtags/alarms). The
- // top-of-Apply block already wrote the equipment id's terminal condition state.
- foreach (var eq in plan.RemovedEquipment)
- {
- if (!SafeRemoveEquipmentSubtree(surgical, eq.EquipmentId, AddressSpaceRealm.Uns)) return false;
- }
-
// v3 Batch 4 — removed UNS reference variables (Uns realm, plain value nodes): terminal Bad then
// in-place remove.
//
// WHAT REACHES THIS LOOP (the "→ rebuild" this comment used to claim is long dead — re-points are
// surgical now): only genuine DEREFERENCES, i.e. the equipment dropped the reference row, so the node
- // is gone for good. A CHANGED reference never lands in RemovedUnsReferenceVariables at all — the
- // planner reports it as a UnsReferenceDelta, which Apply routes above either to an in-place
- // UpdateTagAttributes (identity unchanged) or to its own remove-the-previous + recreate-the-current
- // pair (identity changed). That second shape does remove a node, but it removes it from Apply's delta
- // loop, not from here.
+ // is gone for good — INCLUDING every reference of a removed equipment, which the planner lists here
+ // too. A CHANGED reference never lands in RemovedUnsReferenceVariables at all — the planner reports it
+ // as a UnsReferenceDelta, which Apply routes above either to an in-place UpdateTagAttributes (identity
+ // unchanged) or to its own remove-the-previous + recreate-the-current pair (identity changed). That
+ // second shape does remove a node, but it removes it from Apply's delta loop, not from here.
+ //
+ // Gitea #599 (archreview 03/P5): this runs BEFORE the equipment-subtree removal below, deliberately,
+ // instead of skipping a removed equipment's references with the NotSubsumed filter the loops above
+ // use. Whether the subtree removal reaches a reference depends on its NodeId, not on its parent: the
+ // node manager scopes a subtree by id prefix, and a reference's NodeId is Area/Line/Equipment/Name
+ // while the equipment folder's is its EquipmentId — so in production the subtree does NOT reach it,
+ // and a filter would leak the node. Where an id does sit under the equipment id, the old order had the
+ // subtree take the node first, this loop then reported it unknown, and the deploy ratcheted to a full
+ // rebuild — severing every subscription on the server to remove one equipment. Removing references
+ // first is correct for both shapes: each is still present, gets its terminal Bad, and goes through
+ // RemoveVariableNode, which also severs its inverse Organizes edge on the surviving raw node.
foreach (var v in plan.RemovedUnsReferenceVariables)
{
SafeWriteValue(v.NodeId, null, OpcUaStatus.Bad, ts, AddressSpaceRealm.Uns);
if (!SafeRemoveVariable(surgical, v.NodeId, AddressSpaceRealm.Uns)) return false;
}
+ // Removed equipment — one subtree teardown each (subsumes their child tags/vtags/alarms). The
+ // top-of-Apply block already wrote the equipment id's terminal condition state.
+ foreach (var eq in plan.RemovedEquipment)
+ {
+ if (!SafeRemoveEquipmentSubtree(surgical, eq.EquipmentId, AddressSpaceRealm.Uns)) return false;
+ }
+
// v3 Batch 4 — removed RAW tags (Raw realm): an alarm-bearing raw tag is a condition node (terminal
// RemovedConditionState + RemoveAlarmConditionNode); a plain raw value tag is a variable (terminal Bad
// + RemoveVariableNode).
@@ -522,10 +533,8 @@ public sealed class AddressSpaceApplier
foreach (var a in plan.AddedAlarms) ids.Add(a.EquipmentId);
// v3 Batch 4 / review I5 — an added UNS reference variable is materialised directly under its
// equipment folder (MaterialiseUnsReferences passes EquipmentId as the parent), and the equipment
- // folder is a UNS-realm node — the realm AnnounceAddedNodes hardcodes. So it announces correctly with
- // no realm plumbing. (Added RAW containers/tags are still NOT announced: their parents are Raw-realm
- // nodes, which needs a realm-aware RaiseNodesAddedModelChange call — see the gap note in
- // OpcUaPublishActor.HandleRebuild.)
+ // folder is a UNS-realm node, announced in the Uns realm like every id this method returns. Added RAW
+ // containers/tags have Raw-realm parents and are computed separately (ComputeRawAddAnnouncements).
foreach (var v in plan.AddedUnsReferenceVariables) ids.Add(v.EquipmentId);
foreach (var eq in plan.AddedEquipment)
ids.Add(string.IsNullOrWhiteSpace(eq.UnsLineId) ? eq.EquipmentId : eq.UnsLineId);
@@ -535,6 +544,42 @@ public sealed class AddressSpaceApplier
return list;
}
+ ///
+ /// Gitea #599 (archreview 01/U-8 = 03/P6) — the Raw-realm counterpart of
+ /// : the deduplicated, ordinal-sorted RAW parent node ids to announce
+ /// after a non-rebuild apply materialised added raw containers (Folder/Driver/Device/TagGroup) and raw
+ /// tags. Each added node announces its ParentNodeId — the exact parent
+ /// MaterialiseRawSubtree hangs it under. A parent that is ITSELF added in the same plan is skipped:
+ /// its own parent is announced, and a client re-browsing there discovers the whole new subtree, so the
+ /// inner announcements would only be noise. A top-level container (no parent — it hangs under the shared
+ /// root folder, which has no realm-qualified id to announce) announces itself, the same convention an
+ /// added equipment with no line uses.
+ ///
+ /// The plan whose added raw nodes' parents to announce.
+ /// The distinct affected Raw-realm parent node ids, ordinal-sorted.
+ public IReadOnlyList ComputeRawAddAnnouncements(AddressSpacePlan plan)
+ {
+ ArgumentNullException.ThrowIfNull(plan);
+
+ var added = new HashSet(StringComparer.Ordinal);
+ foreach (var c in plan.AddedRawContainers) added.Add(c.NodeId);
+ foreach (var t in plan.AddedRawTags) added.Add(t.NodeId);
+
+ var ids = new HashSet(StringComparer.Ordinal);
+ void Announce(string nodeId, string? parentNodeId)
+ {
+ if (string.IsNullOrWhiteSpace(parentNodeId)) ids.Add(nodeId);
+ else if (!added.Contains(parentNodeId)) ids.Add(parentNodeId);
+ }
+
+ foreach (var c in plan.AddedRawContainers) Announce(c.NodeId, c.ParentNodeId);
+ foreach (var t in plan.AddedRawTags) Announce(t.NodeId, t.ParentNodeId);
+
+ var list = ids.ToList();
+ list.Sort(StringComparer.Ordinal);
+ return list;
+ }
+
/// The materialise-parent node id a tag/vtag's variable (or native-alarm condition) hangs
/// under: the equipment folder when is null/empty, else the FolderPath
/// sub-folder. Mirrors the parent derivation the Materialise passes use.
@@ -561,21 +606,29 @@ public sealed class AddressSpaceApplier
///
/// Announce a Part 3 GeneralModelChangeEvent(NodeAdded) per distinct affected parent from
- /// , so model-aware clients re-browse the parents the new nodes
- /// were added under. Called by OpcUaPublishActor AFTER the Materialise passes (the nodes exist
- /// by then) and ONLY on a non-rebuild apply — after a full rebuild the announcement is moot
- /// (subscriptions are dead anyway). Uses the existing, guard-covered
+ /// (Uns realm) and
+ /// (Raw realm), so model-aware clients re-browse the parents the new nodes were added under. Called by
+ /// OpcUaPublishActor AFTER the Materialise passes (the nodes exist by then) and ONLY on a
+ /// non-rebuild apply — after a full rebuild the announcement is moot (subscriptions are dead anyway).
+ /// Uses the existing, guard-covered, realm-aware
/// — no new sink member. Each call is
/// Safe-wrapped: a faulting announcement can never break a deploy (the nodes already stand).
+ /// Gitea #599: until the raw half existed, surgically-added raw containers/tags were materialised
+ /// but never announced, so a connected model-aware client could not discover them until it happened to
+ /// re-browse. (Before surgical deploys every raw add rebuilt the address space, which hid the gap.)
///
/// The plan whose added nodes to announce.
public void AnnounceAddedNodes(AddressSpacePlan plan)
{
- foreach (var id in ComputeAddAnnouncements(plan))
- {
- try { _sink.RaiseNodesAddedModelChange(id, AddressSpaceRealm.Uns); }
- catch (Exception ex) { _logger.LogWarning(ex, "AddressSpaceApplier: RaiseNodesAddedModelChange threw for {Node}", id); }
- }
+ foreach (var id in ComputeAddAnnouncements(plan)) SafeAnnounce(id, AddressSpaceRealm.Uns);
+ foreach (var id in ComputeRawAddAnnouncements(plan)) SafeAnnounce(id, AddressSpaceRealm.Raw);
+ }
+
+ /// Raise one NodeAdded model change, swallowing (and Warning-logging) any sink fault.
+ private void SafeAnnounce(string nodeId, AddressSpaceRealm realm)
+ {
+ try { _sink.RaiseNodesAddedModelChange(nodeId, realm); }
+ catch (Exception ex) { _logger.LogWarning(ex, "AddressSpaceApplier: RaiseNodesAddedModelChange threw for {Node} ({Realm})", nodeId, realm); }
}
///
diff --git a/src/Server/ZB.MOM.WW.OtOpcUa.OpcUaServer/OtOpcUaNodeManager.cs b/src/Server/ZB.MOM.WW.OtOpcUa.OpcUaServer/OtOpcUaNodeManager.cs
index 6e2e910c..b078231a 100644
--- a/src/Server/ZB.MOM.WW.OtOpcUa.OpcUaServer/OtOpcUaNodeManager.cs
+++ b/src/Server/ZB.MOM.WW.OtOpcUa.OpcUaServer/OtOpcUaNodeManager.cs
@@ -205,6 +205,26 @@ public sealed class OtOpcUaNodeManager : CustomNodeManager2
///
public Action? NativeAlarmAckRouter { get; set; }
+ ///
+ /// Gitea #597 — whether this node may accept an OPC UA Acknowledge of a NATIVE (driver-fed) condition
+ /// right now: the redundancy data-plane verdict (PrimaryGatePolicy.ShouldServiceAsPrimary, as
+ /// published to IDriverPrimaryRoleSource) — the same verdict DriverHostActor gates the
+ /// upstream ack route and device writes on.
+ ///
+ /// false ⇒ the Acknowledge is REFUSED with BadInvalidState before anything is routed or
+ /// applied. Without this the Secondary applied and reported the ack locally while
+ /// DriverHostActor dropped the route upstream, so the driver never acknowledged and its next
+ /// transition reverted the node — the client saw acked → unacked. Scripted conditions are not gated:
+ /// their engine runs on both nodes, so an ack against the Secondary is real.
+ ///
+ ///
+ /// Read under Lock on the SDK's Call thread, so it MUST be a cheap, non-blocking read (the
+ /// host passes a volatile-backed property). Null (the default) allows — the single-node posture, the
+ /// same default UnmanagedDriverPrimaryRoleSource answers with.
+ ///
+ ///
+ public Func? NativeAlarmAckPrimaryGate { get; set; }
+
private volatile IOpcUaNodeWriteGateway _nodeWriteGateway = NullOpcUaNodeWriteGateway.Instance;
///
@@ -849,13 +869,16 @@ public sealed class OtOpcUaNodeManager : CustomNodeManager2
if (condition.ShelvingState is not null)
{
// SetShelvingState(shelved, oneShot, shelvingTime): map our 3-way kind onto the SDK's
- // (shelved, oneShot) flag pair. Timed shelving's expiry is owned by the engine, not the
- // SDK timer, so we pass shelvingTime=0 (no SDK-managed auto-unshelve).
+ // (shelved, oneShot) flag pair. Timed shelving's expiry is owned by the engine; the time
+ // passed here is the engine's remaining time, so the node's UnshelveTime counts down to the
+ // real expiry (Gitea #597 — a 0 here reads as MaxTimeShelved, ~24.8 days). The SDK timer it
+ // arms only routes an Unshelve back to the engine (OnTimedUnshelve), a no-op once the
+ // engine's own expiry has run.
condition.SetShelvingState(
SystemContext,
shelved: state.Shelving != AlarmShelvingKind.Unshelved,
oneShot: state.Shelving == AlarmShelvingKind.OneShot,
- shelvingTime: 0);
+ shelvingTime: state.Shelving == AlarmShelvingKind.Timed ? RemainingShelveMs(state.UnshelveAtUtc) : 0);
}
condition.SetSeverity(SystemContext, MapSeverity(state.Severity));
condition.Message.Value = new LocalizedText(state.Message);
@@ -909,6 +932,22 @@ public sealed class OtOpcUaNodeManager : CustomNodeManager2
}
}
+ ///
+ /// Gitea #597 — the shelvingTime (ms) to hand SetShelvingState for a timed shelve expiring at
+ /// . 0 when the expiry is unknown (the SDK then uses
+ /// MaxTimeShelved, the pre-#597 behaviour); otherwise the remaining time, clamped to at least 1 ms
+ /// (an already-passed expiry must not read as "unknown" — the engine's own expiry is about to land) and to
+ /// at most int.MaxValue (the SDK timer's range).
+ ///
+ /// The engine's expiry instant, or null.
+ /// The shelving time in milliseconds.
+ internal static double RemainingShelveMs(DateTime? unshelveAtUtc)
+ {
+ if (unshelveAtUtc is not { } at) return 0;
+ var remaining = (at - DateTime.UtcNow).TotalMilliseconds;
+ return Math.Clamp(Math.Ceiling(remaining), 1, int.MaxValue);
+ }
+
///
/// #477 Layer 2 — apply a source-data quality annotation to a materialised condition, OUT OF BAND
/// from any alarm transition. Used by the driver-connectivity path (comms lost → BadNoCommunication,
@@ -1545,9 +1584,10 @@ public sealed class OtOpcUaNodeManager : CustomNodeManager2
///
///
/// Shelving is applied here. The SDK's shelve methods never change ShelvingState
- /// themselves, so an accepted shelve call applies it — with the same (shelved, oneShot, 0)
- /// mapping projects — before reporting. The engine's re-projection of
- /// the shelve then finds no delta. Every other method's state the SDK has already applied.
+ /// themselves, so an accepted shelve call applies it — with the same (shelved, oneShot) mapping
+ /// projects, and a TimedShelve with its requested duration so
+ /// UnshelveTime is real (Gitea #597) — before reporting. The engine's re-projection of the shelve
+ /// then finds no delta. Every other method's state the SDK has already applied.
///
///
/// Exactly once. The whole call runs under Lock. The method handlers hand the command
@@ -1569,7 +1609,10 @@ public sealed class OtOpcUaNodeManager : CustomNodeManager2
/// the SDK handler, and nothing is reported when it did not move. The SDK accepts acknowledging an
/// acknowledged condition and sets Confirmed = false again; a re-ack therefore also restores the
/// pre-call Confirmed and Retain, so a scripted node never drifts from its engine (which ignores a
- /// re-ack) and the call is silent. AddComment always reports: adding a comment is itself the change.
+ /// re-ack) and the call is silent — unless it carried a comment, which the SDK writes and which is then
+ /// reported once like AddComment (Gitea #597). AddComment always reports: adding a comment is itself
+ /// the change. A NATIVE re-ack is still routed to the driver: the route is fire-and-forget, so a node
+ /// showing Acked does not prove the upstream system acknowledged, and re-acking is the documented retry.
///
///
/// A rejected call (bad , e.g. a denied gate, or a refused method on a native
@@ -1582,8 +1625,12 @@ public sealed class OtOpcUaNodeManager : CustomNodeManager2
if (alarm.Acknowledge?.OnCall is { } acknowledge)
{
+ // A commented acknowledge always reports (Gitea #597): the SDK writes the comment even on a re-ack,
+ // and a new comment is a Part 9 change in its own right — exactly as AddComment always reports. An
+ // uncommented re-ack still changes nothing and stays silent.
alarm.Acknowledge.OnCall = (context, m, objectId, eventId, comment) =>
- ReportAfterMethod(() => acknowledge(context, m, objectId, eventId, comment), apply: null, isAcknowledge: true);
+ ReportAfterMethod(() => acknowledge(context, m, objectId, eventId, comment), apply: null, isAcknowledge: true,
+ alwaysReport: !LocalizedText.IsNullOrEmpty(comment));
}
WrapComment(alarm.Confirm, alwaysReport: false);
@@ -1597,11 +1644,13 @@ public sealed class OtOpcUaNodeManager : CustomNodeManager2
WrapGeneric(shelving.Unshelve, () => alarm.SetShelvingState(SystemContext, shelved: false, oneShot: false, shelvingTime: 0));
if (shelving.TimedShelve is { OnCall: { } timed } timedShelve)
{
- // shelvingTime 0, as WriteAlarmCondition projects it: the scripted engine owns the expiry and
- // re-projects Unshelved when it passes (the SDK's own timer only routes an Unshelve back to it).
+ // The requested duration, so UnshelveTime counts down to the real expiry (Gitea #597 — 0 reads as
+ // MaxTimeShelved, ~24.8 days). The scripted engine still owns the expiry and re-projects Unshelved
+ // when it passes (with its own remaining time meanwhile — WriteAlarmCondition); the SDK timer this
+ // arms only routes an Unshelve back to it (OnTimedUnshelve), a no-op once the engine has expired it.
timedShelve.OnCall = (context, method, objectId, shelvingTime) => ReportAfterMethod(
() => timed(context, method, objectId, shelvingTime),
- () => alarm.SetShelvingState(SystemContext, shelved: true, oneShot: false, shelvingTime: 0));
+ () => alarm.SetShelvingState(SystemContext, shelved: true, oneShot: false, shelvingTime: shelvingTime));
}
}
@@ -1729,7 +1778,8 @@ public sealed class OtOpcUaNodeManager : CustomNodeManager2
/// folder-scoped condition node id the driver-bound router resolves back to a driver ref.
/// The acknowledge comment text, or null when none was supplied.
/// ServiceResult.Good when allowed (the SDK then applies state; the method path reports the event);
- /// BadUserAccessDenied when the gate vetoes (no route, no state mutation).
+ /// BadUserAccessDenied when the gate vetoes, BadInvalidState when this node is not the redundancy
+ /// Primary (, Gitea #597) — in both cases no route, no state mutation.
private ServiceResult HandleNativeAlarmAck(ISystemContext context, ConditionState condition, LocalizedText? comment)
{
// Resolve + gate the SAME way HandleAlarmCommand does so native and scripted acks share one authz
@@ -1738,6 +1788,16 @@ public sealed class OtOpcUaNodeManager : CustomNodeManager2
var gate = EvaluateAlarmCommandGate(identity, condition, "Acknowledge");
if (gate is not null) return gate;
+ // Gitea #597 — PRIMARY GATE, after authorization (a caller who may not ack learns nothing about the
+ // node's role). Only the Primary routes a native ack upstream (DriverHostActor applies the same verdict
+ // to the route), so on any other node the ack is refused outright rather than applied locally and then
+ // reverted by the driver's next transition. Nothing is routed, applied or reported.
+ if (NativeAlarmAckPrimaryGate is { } primary && !primary())
+ {
+ return new ServiceResult(StatusCodes.BadInvalidState,
+ new LocalizedText("This server is not the redundancy Primary; acknowledge the alarm on the Primary (the server with the higher ServiceLevel)."));
+ }
+
// Same condition-node-id extraction HandleAlarmCommand uses (condition.NodeId.Identifier?.ToString()):
// for a native condition this is the folder-scoped NodeId string the DriverHostActor inverse map
// (_alarmNodeIdByDriverRef value set) keys by, so the next task can resolve it back to (driver, ref).
@@ -3046,6 +3106,10 @@ public sealed class OtOpcUaNodeManager : CustomNodeManager2
{
if (_variables.TryRemove(id, out var v))
{
+ // Gitea #599 (archreview 03/S20): sever the inverse half of each cross-tree Organizes edge
+ // first, exactly as RemoveVariableNode does — a UNS reference variable in scope points at a
+ // RAW node that survives this UNS-scoped removal and would otherwise keep a dangling edge.
+ SeverOutgoingReferences(v);
v.Parent?.RemoveChild(v);
PredefinedNodes?.Remove(v.NodeId);
}
diff --git a/src/Server/ZB.MOM.WW.OtOpcUa.OpcUaServer/OtOpcUaSdkServer.cs b/src/Server/ZB.MOM.WW.OtOpcUa.OpcUaServer/OtOpcUaSdkServer.cs
index e563dd4b..9cdd91ce 100644
--- a/src/Server/ZB.MOM.WW.OtOpcUa.OpcUaServer/OtOpcUaSdkServer.cs
+++ b/src/Server/ZB.MOM.WW.OtOpcUa.OpcUaServer/OtOpcUaSdkServer.cs
@@ -60,6 +60,22 @@ public sealed class OtOpcUaSdkServer : StandardServer
return true;
}
+ ///
+ /// Gitea #597 — wire the redundancy verdict that decides whether this node accepts an OPC UA Acknowledge
+ /// of a NATIVE condition (); on any other node
+ /// the ack is refused with BadInvalidState instead of being applied locally and reverted by the
+ /// driver's next transition. Passing null clears it (allow). No-op (returns false) when the
+ /// node manager has not been created yet (mirrors ).
+ ///
+ /// A cheap, non-blocking read of the data-plane Primary verdict; null to allow.
+ /// true when set on a live node manager; false when no node manager exists yet.
+ public bool SetNativeAlarmAckPrimaryGate(Func? isPrimary)
+ {
+ if (_otOpcUaNodeManager is null) return false;
+ _otOpcUaNodeManager.NativeAlarmAckPrimaryGate = isPrimary;
+ return true;
+ }
+
///
/// Wire the reverse-path gateway for inbound operator writes to writable equipment-tag nodes onto the
/// created . The host calls this after start with an
diff --git a/src/Server/ZB.MOM.WW.OtOpcUa.Runtime/OpcUa/OpcUaPublishActor.cs b/src/Server/ZB.MOM.WW.OtOpcUa.Runtime/OpcUa/OpcUaPublishActor.cs
index b7f8b2af..27a321f7 100644
--- a/src/Server/ZB.MOM.WW.OtOpcUa.Runtime/OpcUa/OpcUaPublishActor.cs
+++ b/src/Server/ZB.MOM.WW.OtOpcUa.Runtime/OpcUa/OpcUaPublishActor.cs
@@ -592,15 +592,11 @@ public sealed class OpcUaPublishActor : ReceiveActor, IWithTimers
// (subscriptions are dead anyway) — the guard skips it. AnnounceAddedNodes is Safe-wrapped
// internally, so a faulting announce can never break the deploy.
//
- // KNOWN GAP, and NOT a neutral pre-existing one — the delta work made it matter. Before this
- // branch, a plan carrying raw adds went through a full RebuildAddressSpace, so every client had to
- // re-browse anyway and the missing announcement changed nothing observable. Now those adds are
- // materialised surgically while existing subscriptions stay alive, so an unannounced add is
- // genuinely INVISIBLE until a client happens to browse again.
- // Added UNS reference variables ARE announced (their equipment folder is the parent, which is the
- // realm AnnounceAddedNodes hardcodes). Added RAW containers/tags are still not: the announce is
- // Uns-only, and a raw parent needs a realm-aware RaiseNodesAddedModelChange call. That is a real
- // follow-up, not an accepted limitation.
+ // The announce is realm-aware (Gitea #599): UNS parents in the Uns realm, and the parents of
+ // added RAW containers/tags in the Raw realm. It matters because of the delta work — before it, a
+ // plan carrying raw adds went through a full RebuildAddressSpace, so every client re-browsed
+ // anyway; now those adds are materialised surgically while existing subscriptions stay alive, and
+ // an unannounced add would stay invisible until a client happened to browse again.
if (!outcome.RebuildCalled) _applier.AnnounceAddedNodes(plan);
OtOpcUaTelemetry.OpcUaSinkWrite.Add(1, new KeyValuePair("kind", "rebuild"));
diff --git a/src/Server/ZB.MOM.WW.OtOpcUa.Runtime/ScriptedAlarms/ScriptedAlarmHostActor.cs b/src/Server/ZB.MOM.WW.OtOpcUa.Runtime/ScriptedAlarms/ScriptedAlarmHostActor.cs
index bc7bfc1b..dce63eb6 100644
--- a/src/Server/ZB.MOM.WW.OtOpcUa.Runtime/ScriptedAlarms/ScriptedAlarmHostActor.cs
+++ b/src/Server/ZB.MOM.WW.OtOpcUa.Runtime/ScriptedAlarms/ScriptedAlarmHostActor.cs
@@ -739,7 +739,9 @@ public sealed class ScriptedAlarmHostActor : ReceiveActor
// #478 — the condition's status is the worst status across the script's input tags at evaluation
// time (carried on the event by the engine). A transition fired while an input is Uncertain projects
// Uncertain here so the full-snapshot write doesn't clobber quality back to Good.
- StatusCode: worstInputStatusCode);
+ StatusCode: worstInputStatusCode,
+ // Gitea #597 — the engine's own expiry, so the node's UnshelveTime counts down to it.
+ UnshelveAtUtc: condition.Shelving.Kind == ShelvingKind.Timed ? condition.Shelving.UnshelveAtUtc : null);
/// Maps the Core onto the Commons
/// mirror (the Commons assembly can't see the Core enum).
diff --git a/tests/Server/ZB.MOM.WW.OtOpcUa.AdminUI.Tests/AlertsAckPathTests.cs b/tests/Server/ZB.MOM.WW.OtOpcUa.AdminUI.Tests/AlertsAckPathTests.cs
new file mode 100644
index 00000000..9ff01069
--- /dev/null
+++ b/tests/Server/ZB.MOM.WW.OtOpcUa.AdminUI.Tests/AlertsAckPathTests.cs
@@ -0,0 +1,81 @@
+using Akka.Hosting;
+using Akka.TestKit.Xunit2;
+using Shouldly;
+using Xunit;
+using ZB.MOM.WW.OtOpcUa.AdminUI.Clients;
+using ZB.MOM.WW.OtOpcUa.AdminUI.Tests.Acls;
+using ZB.MOM.WW.OtOpcUa.Commons.Messages.Admin;
+using ZB.MOM.WW.OtOpcUa.Commons.Messages.Mesh;
+using ZB.MOM.WW.OtOpcUa.Commons.OpcUa;
+using ZB.MOM.WW.OtOpcUa.ControlPlane;
+using ZB.MOM.WW.OtOpcUa.ControlPlane.AdminOperations;
+using ZB.MOM.WW.OtOpcUa.Core.Abstractions;
+
+namespace ZB.MOM.WW.OtOpcUa.AdminUI.Tests;
+
+///
+/// Gitea #597 — the AdminUI /alerts acknowledge / shelve path, from the page's client call down to
+/// the command the cluster receives: (what Alerts.razor's
+/// per-row buttons call) Asks the real registered under
+/// , which maps the request to an and hands
+/// it to the mesh transport. Until now only the actor half had a test; the client seam the page goes
+/// through had none.
+///
+///
+/// The razor click handler itself is not driven here — this repo has no bUnit. What it adds on top of the
+/// client call is the operator name and comment: null, both reproduced below exactly as the page
+/// passes them.
+///
+public sealed class AlertsAckPathTests : TestKit
+{
+ private (AdminOperationsClient Client, Akka.TestKit.TestProbe Mesh) Wire()
+ {
+ var mesh = CreateTestProbe("mesh-router");
+ var actor = Sys.ActorOf(AdminOperationsActor.Props(
+ AclScopeTestDb.Factory($"alerts-ack-{Guid.NewGuid():N}"),
+ coordinator: CreateTestProbe("coordinator").Ref,
+ probes: Enumerable.Empty(),
+ meshRouter: mesh.Ref));
+ var registry = new ActorRegistry();
+ registry.Register(actor);
+ return (new AdminOperationsClient(registry), mesh);
+ }
+
+ /// The page's Acknowledge reaches the cluster as an Acknowledge AlarmCommand on the
+ /// alarm-commands topic carrying the alarm id and the operator, and the page is told it was sent.
+ [Fact]
+ public async Task Acknowledge_from_the_alerts_page_dispatches_an_Acknowledge_command_and_reports_sent()
+ {
+ var (client, mesh) = Wire();
+
+ var result = await client.AcknowledgeAlarmAsync("alarm-42", "operator-jo", comment: null, CancellationToken.None);
+
+ result.Ok.ShouldBeTrue();
+ result.Message.ShouldBeNull();
+ var sent = mesh.ExpectMsg(TimeSpan.FromSeconds(5));
+ sent.Topic.ShouldBe(AlarmCommandsTopic.Name);
+ var command = sent.Message.ShouldBeOfType();
+ command.AlarmId.ShouldBe("alarm-42");
+ command.Operation.ShouldBe("Acknowledge");
+ command.User.ShouldBe("operator-jo");
+ command.Comment.ShouldBeNull();
+ command.UnshelveAtUtc.ShouldBeNull();
+ }
+
+ /// The page's timed shelve carries its expiry through to the command — the instant the engine
+ /// projects as the node's UnshelveTime.
+ [Fact]
+ public async Task Timed_shelve_from_the_alerts_page_carries_its_expiry_to_the_command()
+ {
+ var (client, mesh) = Wire();
+ var until = new DateTime(2026, 10, 8, 12, 30, 0, DateTimeKind.Utc);
+
+ var result = await client.ShelveAlarmAsync(
+ "alarm-7", "operator-kim", ShelveKind.Timed, unshelveAtUtc: until, comment: null, CancellationToken.None);
+
+ result.Ok.ShouldBeTrue();
+ var command = mesh.ExpectMsg(TimeSpan.FromSeconds(5)).Message.ShouldBeOfType();
+ command.Operation.ShouldBe("TimedShelve");
+ command.UnshelveAtUtc.ShouldBe(until);
+ }
+}
diff --git a/tests/Server/ZB.MOM.WW.OtOpcUa.OpcUaServer.IntegrationTests/ConditionMethodEventTests.cs b/tests/Server/ZB.MOM.WW.OtOpcUa.OpcUaServer.IntegrationTests/ConditionMethodEventTests.cs
index 5b9c7daf..a20c6c2c 100644
--- a/tests/Server/ZB.MOM.WW.OtOpcUa.OpcUaServer.IntegrationTests/ConditionMethodEventTests.cs
+++ b/tests/Server/ZB.MOM.WW.OtOpcUa.OpcUaServer.IntegrationTests/ConditionMethodEventTests.cs
@@ -266,10 +266,11 @@ public sealed class ConditionMethodEventTests
/// reports exactly one unshelve event after the one shelve event.
///
///
- /// The method path applies the shelve with shelvingTime 0, as the projection does, so the expiry is
- /// the engine's (computed from the command's UnshelveAtUtc), never the SDK timer's — a node timer
- /// would only route an Unshelve back to the engine anyway. The stand-in engine here schedules its expiry
- /// from the real UnshelveAtUtc the method handler computed.
+ /// The expiry is the engine's (computed from the command's UnshelveAtUtc). Since Gitea #597 the node
+ /// is shelved for the real duration, so the SDK's own timer fires at the same instant — but it only routes
+ /// an Unshelve back to the engine (ignored by this stand-in, a no-op on an unshelved engine alarm) and
+ /// changes no node state, so it adds no event. The stand-in engine here schedules its expiry from the real
+ /// UnshelveAtUtc the method handler computed.
///
[Fact]
public async Task A_scripted_timed_shelve_expires_with_exactly_one_unshelve_event()
@@ -326,17 +327,157 @@ public sealed class ConditionMethodEventTests
}
///
- /// Acknowledging an acknowledged condition reports nothing, and does not flip a scripted condition's
- /// Confirmed out of step with its engine.
+ /// A scripted condition's events carry the real remaining shelve time in
+ /// ShelvingState/UnshelveTime — after a client TimedShelve, after the engine's re-projection of it,
+ /// and after an engine-driven timed shelve (the AdminUI /alerts path, which never calls the method).
///
///
- /// The SDK accepts a re-ack and sets Confirmed false again; the engine ignores it. The scripted leg
- /// acknowledges and confirms first, so the flip would be visible on the sentinel.
+ /// Gitea #597: both paths applied the shelve with shelvingTime 0, which the SDK reads as "the
+ /// longest shelve allowed" — MaxTimeShelved, int.MaxValue ms — so every timed shelve
+ /// advertised ~24.8 days remaining while the engine expired it on time. Read through the event select
+ /// clause rather than a Read of the child node: the condition's children carry their type's
+ /// instance-declaration NodeIds (i=9189 for UnshelveTime), so a direct Read reaches the type, not
+ /// this condition.
+ ///
+ [Fact]
+ public async Task A_scripted_timed_shelve_reports_the_real_remaining_unshelve_time()
+ {
+ var ct = TestContext.Current.CancellationToken;
+ var rig = await StartAsync("CondUnshelveTime", encrypted: false, ct);
+ try
+ {
+ rig.Enforce(true, [Key()], ClusterGrant(KeyPrincipal, "acl-key", All));
+ rig.MaterialiseScripted();
+ var current = PreState("TimedShelve", native: false) with { Message = "base" };
+ rig.Nm.AlarmCommandRouter = cmd =>
+ {
+ if (cmd.Operation != "TimedShelve") return;
+ // The engine's answer carries its own expiry — what ScriptedAlarmHostActor projects.
+ current = current with { Shelving = AlarmShelvingKind.Timed, UnshelveAtUtc = cmd.UnshelveAtUtc };
+ rig.ProjectLater(native: false, current);
+ };
+
+ using var session = await rig.ConnectAsync(anonymous: false, ct);
+ var events = new RecordedEvents();
+ var subscription = await RecordedEvents.SubscribeAsync(session, events, ct);
+ var item = RecordedEvents.AddEventItem(subscription, ObjectIds.Server);
+ await subscription.ApplyChangesAsync(ct);
+ double RemainingMs(string message) =>
+ (double)events.ConditionEvents(item, message)[^1][RecordedEvents.UnshelveTimeField].Value;
+
+ rig.Project(false, current);
+ await RecordedEvents.WaitUntilAsync(() => events.Has(item, "base"));
+ RemainingMs("base").ShouldBe(0d, "unshelved");
+
+ // The method's one event carries the shelve's remaining time …
+ await CallAsync(session, ConditionNodeId(session, false), "TimedShelve", null, ct, shelvingTimeMs: 60_000);
+ await rig.DrainProjectionsAsync();
+ await RecordedEvents.WaitUntilAsync(() => events.ConditionEvents(item, "base").Count == 2);
+ RemainingMs("base").ShouldBeInRange(50_000, 60_000, "the TimedShelve method event");
+
+ // … and so does a later transition, after the engine's re-projection re-applied the shelve.
+ rig.Project(false, current = current with { Message = "after-reprojection" });
+ await RecordedEvents.WaitUntilAsync(() => events.Has(item, "after-reprojection"));
+ RemainingMs("after-reprojection").ShouldBeInRange(50_000, 60_000, "after the engine's re-projection");
+
+ // Engine-driven (the AdminUI path): unshelve, then a timed shelve that reaches the node only as a
+ // projection, never through the method.
+ rig.Project(false, current = current with { Shelving = AlarmShelvingKind.Unshelved, UnshelveAtUtc = null, Message = "unshelved" });
+ await RecordedEvents.WaitUntilAsync(() => events.Has(item, "unshelved"));
+ RemainingMs("unshelved").ShouldBe(0d);
+ rig.Project(false, current with
+ {
+ Shelving = AlarmShelvingKind.Timed, UnshelveAtUtc = DateTime.UtcNow.AddSeconds(30), Message = "projected",
+ });
+ await RecordedEvents.WaitUntilAsync(() => events.Has(item, "projected"));
+ RemainingMs("projected").ShouldBeInRange(20_000, 30_000, "a projected timed shelve");
+
+ await subscription.DeleteAsync(true, ct);
+ }
+ finally { await rig.DisposeAsync(); }
+ }
+
+ ///
+ /// On a node that is not the redundancy Primary, an OPC UA Acknowledge of a NATIVE condition is refused
+ /// with BadInvalidState: nothing is routed to the driver, nothing is applied, nothing is reported.
+ /// On the Primary the same call is accepted (the positive control).
+ ///
+ ///
+ /// Gitea #597 decision. The ack used to be applied locally and reported, while DriverHostActor's
+ /// Primary gate dropped the route upstream — so the driver never acknowledged, its next transition
+ /// projected Acked = false, and a client acking against the Secondary saw acked → unacked. An
+ /// honest refusal replaces an ack that visibly sticks and then reverts. Scripted conditions are
+ /// unaffected: their engine runs on both nodes, so the Secondary's ack is real.
+ ///
+ [Fact]
+ public async Task A_native_acknowledge_on_a_non_primary_node_is_refused()
+ {
+ var ct = TestContext.Current.CancellationToken;
+ var rig = await StartAsync("CondNativeAckSecondary", encrypted: false, ct);
+ try
+ {
+ rig.Enforce(true, [Key()], ClusterGrant(KeyPrincipal, "acl-key", All));
+ rig.MaterialiseNative();
+ var current = PreState("Acknowledge", native: true) with { Message = "base" };
+ WireSimulatedOwners(rig, native: true, () => current, s => current = s);
+ var routed = 0;
+ var driverAck = rig.Nm.NativeAlarmAckRouter!;
+ rig.Nm.NativeAlarmAckRouter = ack => { Interlocked.Increment(ref routed); driverAck(ack); };
+ var primary = false;
+ rig.Nm.NativeAlarmAckPrimaryGate = () => primary;
+
+ using var session = await rig.ConnectAsync(anonymous: false, ct);
+ var events = new RecordedEvents();
+ var subscription = await RecordedEvents.SubscribeAsync(session, events, ct);
+ var item = RecordedEvents.AddEventItem(subscription, ObjectIds.Server);
+ await subscription.ApplyChangesAsync(ct);
+
+ rig.Project(native: true, current);
+ await RecordedEvents.WaitUntilAsync(() => events.Has(item, "base"));
+ var condition = ConditionNodeId(session, native: true);
+
+ var refused = await Should.ThrowAsync(
+ CallAsync(session, condition, "Acknowledge", events.LatestEventId(item, "base"), ct));
+ refused.StatusCode.ShouldBe(StatusCodes.BadInvalidState);
+ routed.ShouldBe(0, "a refused ack reaches no driver");
+ rig.Nm.TryGetAlarmCondition(RawAlarmPath, AddressSpaceRealm.Raw)!.AckedState.Id.Value
+ .ShouldBeFalse("a refused ack applies nothing");
+
+ // Positive control: the same call on the Primary is accepted, routed and reported.
+ primary = true;
+ await CallAsync(session, condition, "Acknowledge", events.LatestEventId(item, "base"), ct);
+ await rig.DrainProjectionsAsync();
+ routed.ShouldBe(1);
+
+ rig.Project(native: true, current = current with { Message = "sentinel" });
+ await RecordedEvents.WaitUntilAsync(() => events.Has(item, "sentinel"));
+ var baseEvents = events.ConditionEvents(item, "base");
+ baseEvents.Count.ShouldBe(2, "the base transition plus the Primary's one ack event; the refusal reported nothing");
+ baseEvents[1][RecordedEvents.AckedField].Value.ShouldBe(true);
+
+ await subscription.DeleteAsync(true, ct);
+ }
+ finally { await rig.DisposeAsync(); }
+ }
+
+ ///
+ /// Acknowledging an acknowledged condition WITHOUT a comment reports nothing, and does not flip a scripted
+ /// condition's Confirmed out of step with its engine. With a comment it reports exactly one event carrying
+ /// that comment — the comment is a Part 9 change in its own right, as AddComment is (Gitea #597) — and
+ /// still leaves Acked/Confirmed alone.
+ ///
+ ///
+ /// The SDK accepts a re-ack, writes its comment, and sets Confirmed false again; the engine ignores it.
+ /// The scripted leg acknowledges and confirms first, so the flip would be visible on the sentinel. Before
+ /// #597 a commented re-ack wrote the comment to the node but reported nothing, so no subscriber ever saw
+ /// it.
///
[Theory]
- [InlineData(false)]
- [InlineData(true)]
- public async Task A_re_acknowledge_reports_nothing_and_changes_nothing(bool native)
+ [InlineData(false, null)]
+ [InlineData(true, null)]
+ [InlineData(false, "again")]
+ [InlineData(true, "again")]
+ public async Task A_re_acknowledge_reports_only_its_comment_and_changes_nothing_else(bool native, string? reAckComment)
{
var ct = TestContext.Current.CancellationToken;
var rig = await StartAsync($"CondReAck{native}", encrypted: false, ct);
@@ -347,6 +488,9 @@ public sealed class ConditionMethodEventTests
rig.MaterialiseScripted();
var current = PreState("Acknowledge", native) with { Message = "base" };
WireSimulatedOwners(rig, native, () => current, s => current = s);
+ var routedAcks = 0;
+ var driverAck = rig.Nm.NativeAlarmAckRouter!;
+ rig.Nm.NativeAlarmAckRouter = ack => { Interlocked.Increment(ref routedAcks); driverAck(ack); };
using var session = await rig.ConnectAsync(anonymous: false, ct);
var events = new RecordedEvents();
@@ -370,13 +514,32 @@ public sealed class ConditionMethodEventTests
}
await RecordedEvents.WaitUntilAsync(() => events.ConditionEvents(item, "base").Count == expected);
- await CallAsync(session, condition, "Acknowledge", events.LatestEventId(item, "base"), ct);
+ var routedBefore = routedAcks;
+ await CallAsync(session, condition, "Acknowledge", events.LatestEventId(item, "base"), ct, ackComment: reAckComment);
await rig.DrainProjectionsAsync();
rig.Project(native, current = current with { Message = "sentinel" });
await RecordedEvents.WaitUntilAsync(() => events.Has(item, "sentinel"));
- events.ConditionEvents(item, "base").Count.ShouldBe(expected, "the re-ack must report nothing");
+ var baseEvents = events.ConditionEvents(item, "base");
+ if (reAckComment is null)
+ {
+ baseEvents.Count.ShouldBe(expected, "an uncommented re-ack must report nothing");
+ }
+ else
+ {
+ baseEvents.Count.ShouldBe(expected + 1, "a commented re-ack reports exactly one comment event");
+ var commented = baseEvents[^1];
+ (commented[RecordedEvents.CommentField].Value as LocalizedText)?.Text.ShouldBe(reAckComment);
+ commented[RecordedEvents.AckedField].Value.ShouldBe(true);
+ commented[RecordedEvents.ConfirmedField].Value.ShouldBe(true, "the commented re-ack must not unconfirm the node");
+ }
+
+ // A native re-ack is still routed to the driver: the route is fire-and-forget, so a node showing
+ // Acked does not prove the upstream system acknowledged, and re-acking is the documented retry
+ // (docs/AlarmTracking.md, "Best-effort during reconnect"). Pinned so it is changed deliberately.
+ if (native) (routedAcks - routedBefore).ShouldBe(1);
+
var sentinel = events.ConditionEvents(item, "sentinel");
sentinel.Count.ShouldBe(1);
sentinel[0][RecordedEvents.AckedField].Value.ShouldBe(true);
@@ -467,11 +630,13 @@ public sealed class ConditionMethodEventTests
/// condition's method declarations — the shelve methods included); throws on a bad result.
///
private static async Task CallAsync(
- ISession session, NodeId condition, string method, byte[]? eventId, CancellationToken ct, double shelvingTimeMs = 60_000)
+ ISession session, NodeId condition, string method, byte[]? eventId, CancellationToken ct, double shelvingTimeMs = 60_000,
+ string? ackComment = "ack")
{
var (methodId, args) = method switch
{
- "Acknowledge" => (MethodIds.AcknowledgeableConditionType_Acknowledge, new object[] { eventId!, new LocalizedText("ack") }),
+ "Acknowledge" => (MethodIds.AcknowledgeableConditionType_Acknowledge,
+ new object[] { eventId!, ackComment is null ? LocalizedText.Null : new LocalizedText(ackComment) }),
"Confirm" => (MethodIds.AcknowledgeableConditionType_Confirm, [eventId!, new LocalizedText("confirm")]),
"AddComment" => (MethodIds.ConditionType_AddComment, [eventId!, new LocalizedText("note")]),
"Enable" => (MethodIds.ConditionType_Enable, []),
diff --git a/tests/Server/ZB.MOM.WW.OtOpcUa.OpcUaServer.IntegrationTests/ServerEventRig.cs b/tests/Server/ZB.MOM.WW.OtOpcUa.OpcUaServer.IntegrationTests/ServerEventRig.cs
index e0bf4ae1..1fdaff44 100644
--- a/tests/Server/ZB.MOM.WW.OtOpcUa.OpcUaServer.IntegrationTests/ServerEventRig.cs
+++ b/tests/Server/ZB.MOM.WW.OtOpcUa.OpcUaServer.IntegrationTests/ServerEventRig.cs
@@ -310,6 +310,7 @@ internal sealed class RecordedEvents
public const int CommentField = 7;
public const int ChangesField = 8;
public const int SourceNodeField = 9;
+ public const int UnshelveTimeField = 10;
private readonly object _gate = new();
private readonly List<(uint Handle, VariantCollection Fields)> _events = [];
@@ -367,6 +368,8 @@ internal sealed class RecordedEvents
filter.AddSelectClause(ObjectTypeIds.ConditionType, BrowseNames.Comment);
filter.AddSelectClause(ObjectTypeIds.GeneralModelChangeEventType, BrowseNames.Changes);
filter.AddSelectClause(ObjectTypes.BaseEventType, BrowseNames.SourceNode);
+ filter.SelectClauses.Add(new SimpleAttributeOperand(
+ ObjectTypeIds.AlarmConditionType, [BrowseNames.ShelvingState, BrowseNames.UnshelveTime]));
var item = new MonitoredItem(subscription.DefaultItem)
{
diff --git a/tests/Server/ZB.MOM.WW.OtOpcUa.OpcUaServer.Tests/AddressSpaceApplierTests.cs b/tests/Server/ZB.MOM.WW.OtOpcUa.OpcUaServer.Tests/AddressSpaceApplierTests.cs
index 1251f581..db71e68d 100644
--- a/tests/Server/ZB.MOM.WW.OtOpcUa.OpcUaServer.Tests/AddressSpaceApplierTests.cs
+++ b/tests/Server/ZB.MOM.WW.OtOpcUa.OpcUaServer.Tests/AddressSpaceApplierTests.cs
@@ -1459,6 +1459,62 @@ public sealed class AddressSpaceApplierTests
new[] { "eq-1", V3NodeIds.Uns("eq-1", "Diag"), "line-7" }.OrderBy(x => x));
}
+ ///
+ /// Gitea #599 (archreview 01/U-8 = 03/P6) — surgically-added RAW nodes are announced in the RAW realm.
+ /// A new tag under an existing device announces that device; a new TagGroup carrying a new tag under a
+ /// new Device announces only the Device's existing parent — the inner parents are themselves new, and a
+ /// client re-browsing the outer one discovers the whole new subtree. Before the fix only Uns-realm
+ /// parents were announced, so these adds were invisible to connected model-aware clients.
+ ///
+ [Fact]
+ public void AnnounceAddedNodes_announces_added_raw_nodes_in_the_raw_realm()
+ {
+ var sink = new RecordingSink();
+ var applier = new AddressSpaceApplier(sink, NullLogger.Instance);
+
+ var plan = EmptyPlan with
+ {
+ AddedRawContainers = new[]
+ {
+ new RawContainerNode("Plant/Modbus/dev2", "Plant/Modbus", "dev2", RawNodeKind.Device),
+ new RawContainerNode("Plant/Modbus/dev2/grp", "Plant/Modbus/dev2", "grp", RawNodeKind.TagGroup),
+ },
+ AddedRawTags = new[]
+ {
+ RawTag("Plant/Modbus/dev2/grp/speed") with { ParentNodeId = "Plant/Modbus/dev2/grp" },
+ RawTag("Plant/Modbus/dev1/temp"), // parent Plant/Modbus/dev1 already exists
+ },
+ // A UNS add in the same plan still announces in the Uns realm.
+ AddedUnsReferenceVariables = new[] { UnsRef("filling/line-1/station-1/speed", "speed") },
+ };
+
+ applier.AnnounceAddedNodes(plan);
+
+ sink.ModelChangeRealmQueue.OrderBy(x => x.NodeId, StringComparer.Ordinal).ToArray().ShouldBe(new[]
+ {
+ ("Plant/Modbus", AddressSpaceRealm.Raw),
+ ("Plant/Modbus/dev1", AddressSpaceRealm.Raw),
+ ("eq-1", AddressSpaceRealm.Uns),
+ });
+ }
+
+ /// A top-level raw container (no parent: it hangs under the shared root, which has no
+ /// realm-qualified id) announces itself; duplicates collapse; the Uns-side computation is unaffected.
+ [Fact]
+ public void ComputeRawAddAnnouncements_top_level_container_announces_itself_and_dedups()
+ {
+ var applier = new AddressSpaceApplier(new RecordingSink(), NullLogger.Instance);
+
+ var plan = EmptyPlan with
+ {
+ AddedRawContainers = new[] { new RawContainerNode("Plant2", null, "Plant2", RawNodeKind.Folder) },
+ AddedRawTags = new[] { RawTag("Plant/Modbus/dev1/a"), RawTag("Plant/Modbus/dev1/b") },
+ };
+
+ applier.ComputeRawAddAnnouncements(plan).ShouldBe(new[] { "Plant/Modbus/dev1", "Plant2" });
+ applier.ComputeAddAnnouncements(plan).ShouldBeEmpty();
+ }
+
// ----- Surgical v3 deltas: raw-tag attribute edits (Raw realm) + UNS-reference remove -----
// Task 4 taught AddressSpaceChangeClassifier that a non-alarm RawTagDelta and any UnsReferenceDelta are
// surgical-eligible; these pin the applier actually APPLYING them (before this, such a plan classified
@@ -1963,7 +2019,13 @@ public sealed class AddressSpaceApplierTests
public List ModelChangeCalls => ModelChangeQueue.ToList();
/// Records a NodeAdded model-change announcement.
/// The node under which discovered nodes were added.
- public void RaiseNodesAddedModelChange(string affectedNodeId, AddressSpaceRealm realm = AddressSpaceRealm.Uns) => ModelChangeQueue.Enqueue(affectedNodeId);
+ public void RaiseNodesAddedModelChange(string affectedNodeId, AddressSpaceRealm realm = AddressSpaceRealm.Uns)
+ {
+ ModelChangeQueue.Enqueue(affectedNodeId);
+ ModelChangeRealmQueue.Enqueue((affectedNodeId, realm));
+ }
+ /// Gets the NodeAdded announcements WITH the realm each was raised in (Gitea #599).
+ public ConcurrentQueue<(string NodeId, AddressSpaceRealm Realm)> ModelChangeRealmQueue { get; } = new();
public void WireAlarmNotifiers(string alarmNodeId, AddressSpaceRealm alarmRealm, IReadOnlyList notifierFolderNodeIds, AddressSpaceRealm notifierFolderRealm) { }
public void AddReference(string sourceNodeId, AddressSpaceRealm sourceRealm, string targetNodeId, AddressSpaceRealm targetRealm, string referenceType = "Organizes") { }
}
diff --git a/tests/Server/ZB.MOM.WW.OtOpcUa.OpcUaServer.Tests/NodeManagerSurgicalRemoveTests.cs b/tests/Server/ZB.MOM.WW.OtOpcUa.OpcUaServer.Tests/NodeManagerSurgicalRemoveTests.cs
index b064ddf0..f50a2d57 100644
--- a/tests/Server/ZB.MOM.WW.OtOpcUa.OpcUaServer.Tests/NodeManagerSurgicalRemoveTests.cs
+++ b/tests/Server/ZB.MOM.WW.OtOpcUa.OpcUaServer.Tests/NodeManagerSurgicalRemoveTests.cs
@@ -182,6 +182,104 @@ public sealed class NodeManagerSurgicalRemoveTests : IDisposable
await host.DisposeAsync();
}
+ // ---------- Gitea #599 (archreview 03/P5 + 03/S20): equipment-with-references removal ----------
+
+ ///
+ /// S20 — the subtree removal severs the inverse half of every cross-tree Organizes edge a removed
+ /// variable holds. The raw node survives a UNS-scoped removal, so without this it keeps a browsable,
+ /// unresolvable reference to a node that no longer exists — the hazard RemoveVariableNode was
+ /// already fixed for (2026-08-15 review I3), left open on the subtree path.
+ ///
+ [Trait("Category", "Unit")]
+ [Fact]
+ public async Task RemoveEquipmentSubtree_severs_the_inverse_Organizes_edge_on_the_surviving_raw_node()
+ {
+ var (host, server) = await BootAsync();
+ try
+ {
+ var nm = server.NodeManager!;
+ nm.EnsureVariable("Plant/Modbus/dev1/temp", null, "temp", "Float", writable: false, realm: AddressSpaceRealm.Raw);
+ nm.EnsureFolder("eq-1", parentNodeId: null, displayName: "Equipment 1", realm: AddressSpaceRealm.Uns);
+ nm.EnsureVariable("eq-1/Temp", "eq-1", "Temp", "Float", writable: false, realm: AddressSpaceRealm.Uns);
+ nm.AddReference("eq-1/Temp", AddressSpaceRealm.Uns, "Plant/Modbus/dev1/temp", AddressSpaceRealm.Raw);
+ var mirror = nm.TryGetVariable("eq-1/Temp", AddressSpaceRealm.Uns)!.NodeId;
+ InverseOrganizesTo(nm, mirror).ShouldBeTrue(); // precondition: the edge really is there
+
+ nm.RemoveEquipmentSubtree("eq-1", AddressSpaceRealm.Uns).ShouldBeTrue();
+
+ nm.TryGetVariable("Plant/Modbus/dev1/temp", AddressSpaceRealm.Raw).ShouldNotBeNull();
+ InverseOrganizesTo(nm, mirror).ShouldBeFalse();
+ }
+ finally
+ {
+ await host.DisposeAsync();
+ }
+ }
+
+ ///
+ /// P5 — removing an equipment that holds UNS references is a scoped in-place removal, NOT a full rebuild,
+ /// and leaves the surviving raw node with no dangling inverse edge. Run for both id shapes: a reference
+ /// whose NodeId sits under the equipment id (so the subtree removal reaches it — before the fix the
+ /// reference loop then found it gone and ratcheted to a rebuild, severing every subscription on the
+ /// server), and the production shape, an Area/Line/Equipment/Name NodeId parented to an
+ /// id-named equipment folder (which the subtree's id-prefix scope does not reach).
+ ///
+ [Trait("Category", "Unit")]
+ [Theory]
+ [InlineData("eq-1/Temp")]
+ [InlineData("Area/Line/Eq/Temp")]
+ public async Task Removing_equipment_with_references_is_surgical_and_leaves_no_dangling_edge(string mirrorId)
+ {
+ var (host, server) = await BootAsync();
+ try
+ {
+ var nm = server.NodeManager!;
+ nm.EnsureVariable("Plant/Modbus/dev1/temp", null, "temp", "Float", writable: false, realm: AddressSpaceRealm.Raw);
+ nm.EnsureFolder("eq-1", parentNodeId: null, displayName: "Equipment 1", realm: AddressSpaceRealm.Uns);
+ nm.EnsureVariable(mirrorId, "eq-1", "Temp", "Float", writable: false, realm: AddressSpaceRealm.Uns);
+ nm.AddReference(mirrorId, AddressSpaceRealm.Uns, "Plant/Modbus/dev1/temp", AddressSpaceRealm.Raw);
+ // A bystander whose value must survive (a rebuild would drop it).
+ nm.EnsureFolder("eq-2", parentNodeId: null, displayName: "Equipment 2", realm: AddressSpaceRealm.Uns);
+ nm.EnsureVariable("eq-2/S", "eq-2", "S", "Float", writable: false, realm: AddressSpaceRealm.Uns);
+ var mirror = nm.TryGetVariable(mirrorId, AddressSpaceRealm.Uns)!.NodeId;
+
+ var plan = new AddressSpacePlan(
+ AddedEquipment: Array.Empty(),
+ RemovedEquipment: new[] { new EquipmentNode("eq-1", "Equipment 1", "") },
+ ChangedEquipment: Array.Empty(),
+ AddedDrivers: Array.Empty(),
+ RemovedDrivers: Array.Empty(),
+ ChangedDrivers: Array.Empty(),
+ AddedAlarms: Array.Empty(),
+ RemovedAlarms: Array.Empty(),
+ ChangedAlarms: Array.Empty())
+ {
+ RemovedUnsReferenceVariables = new[]
+ {
+ new UnsReferenceVariable("ref-1", "eq-1", mirrorId, "Temp", "Plant/Modbus/dev1/temp", "Float", Writable: false),
+ },
+ };
+
+ var outcome = new AddressSpaceApplier(new SdkAddressSpaceSink(nm),
+ Microsoft.Extensions.Logging.Abstractions.NullLogger.Instance).Apply(plan);
+
+ outcome.RebuildCalled.ShouldBeFalse();
+ nm.TryGetVariable(mirrorId, AddressSpaceRealm.Uns).ShouldBeNull();
+ nm.TryGetFolder("eq-1").ShouldBeNull();
+ nm.TryGetVariable("eq-2/S", AddressSpaceRealm.Uns).ShouldNotBeNull(); // positive control: no rebuild
+ nm.TryGetVariable("Plant/Modbus/dev1/temp", AddressSpaceRealm.Raw).ShouldNotBeNull();
+ InverseOrganizesTo(nm, mirror).ShouldBeFalse();
+ }
+ finally
+ {
+ await host.DisposeAsync();
+ }
+ }
+
+ private static bool InverseOrganizesTo(OtOpcUaNodeManager nm, NodeId mirror) =>
+ nm.GetNodeReferences("Plant/Modbus/dev1/temp", AddressSpaceRealm.Raw)
+ .Any(r => r.ReferenceTypeId == ReferenceTypeIds.Organizes && r.IsInverse && r.TargetId == mirror);
+
private async Task<(OpcUaApplicationHost Host, OtOpcUaSdkServer Server)> BootAsync()
{
var host = new OpcUaApplicationHost(
diff --git a/tests/Server/ZB.MOM.WW.OtOpcUa.OpcUaServer.Tests/UnsReferenceBackingParityTests.cs b/tests/Server/ZB.MOM.WW.OtOpcUa.OpcUaServer.Tests/UnsReferenceBackingParityTests.cs
new file mode 100644
index 00000000..69855bab
--- /dev/null
+++ b/tests/Server/ZB.MOM.WW.OtOpcUa.OpcUaServer.Tests/UnsReferenceBackingParityTests.cs
@@ -0,0 +1,158 @@
+using System.Reflection;
+using Shouldly;
+using Xunit;
+using ZB.MOM.WW.OtOpcUa.Commons.OpcUa;
+
+namespace ZB.MOM.WW.OtOpcUa.OpcUaServer.Tests;
+
+///
+/// Gitea #599 / archreview 03/U11 — a mechanical guard on the Backing*-field parity invariant.
+///
+///
+///
+/// A non-alarm raw-tag delta over the classifier's surgical whitelist is applied IN PLACE on the raw
+/// node, and every referencing UNS mirror is repaired only because the same edit makes its
+/// record unequal — the planner then emits a coincident
+/// UnsReferenceDelta. That works only while every whitelisted raw-tag field the mirror inherits
+/// has a counterpart on (same name, or Backing + name).
+/// Omitting one is silent: the raw node updates, the mirror stays stale, and nothing fails. Until this
+/// test the invariant was enforced by comments alone.
+///
+///
+/// The whitelist is DISCOVERED, not restated: each property is perturbed in
+/// isolation and asked of . So
+/// widening the classifier whitelist without mirroring the field fails here, and so does adding a
+/// Backing* field that names no raw-tag field.
+///
+///
+public sealed class UnsReferenceBackingParityTests
+{
+ ///
+ /// Surgically-eligible raw-tag fields that a UNS mirror deliberately does NOT inherit, each with the
+ /// reason. Anything else the classifier lets through surgically must be mirrored.
+ ///
+ private static readonly IReadOnlyDictionary NotInheritedByMirror = new Dictionary
+ {
+ // Node-inert for a value tag: it only drives native-alarm notifier wiring, and an alarm-bearing delta
+ // never takes the surgical path. The mirror is the referencing side, so it has nothing to inherit.
+ [nameof(RawTagPlan.ReferencingEquipmentPaths)] = "notifier wiring only; the mirror is the referencing side",
+ };
+
+ private static RawTagPlan Baseline() => new(
+ TagId: "tag-1",
+ NodeId: "MAIN/modbus/dev/grp/temp",
+ ParentNodeId: "MAIN/modbus/dev/grp",
+ DriverInstanceId: "drv-1",
+ Name: "temp",
+ DataType: "Float",
+ Writable: false,
+ Alarm: null,
+ ReferencingEquipmentPaths: new[] { "Area/Line/Eq" },
+ IsHistorized: false,
+ HistorianTagname: null,
+ IsArray: false,
+ ArrayLength: null,
+ Realm: AddressSpaceRealm.Raw);
+
+ /// The raw-tag fields the classifier lets through surgically, found by perturbing each one.
+ private static IReadOnlyList SurgicallyEligibleRawTagFields()
+ {
+ var baseline = Baseline();
+ var eligible = new List();
+ foreach (var p in RecordProperties(typeof(RawTagPlan)))
+ {
+ var current = Perturb(baseline, p);
+ if (AddressSpaceChangeClassifier.RawTagDeltaIsSurgicalEligible(new AddressSpacePlan.RawTagDelta(baseline, current)))
+ eligible.Add(p);
+ }
+ return eligible;
+ }
+
+ ///
+ /// Every raw-tag field the classifier applies surgically is mirrored on the UNS reference record (or is
+ /// explicitly listed as not inherited) — with the same type, so the planner's record equality sees the
+ /// edit.
+ ///
+ [Trait("Category", "Unit")]
+ [Fact]
+ public void Every_surgically_eligible_raw_tag_field_is_mirrored_on_the_UNS_reference_record()
+ {
+ var eligible = SurgicallyEligibleRawTagFields();
+
+ // Positive control: the perturbation machinery really does find the whitelist. If it found nothing,
+ // the loop below would pass vacuously.
+ eligible.Select(p => p.Name).ShouldBe(
+ new[]
+ {
+ nameof(RawTagPlan.DataType), nameof(RawTagPlan.Writable), nameof(RawTagPlan.ReferencingEquipmentPaths),
+ nameof(RawTagPlan.IsHistorized), nameof(RawTagPlan.HistorianTagname), nameof(RawTagPlan.IsArray),
+ nameof(RawTagPlan.ArrayLength),
+ },
+ ignoreOrder: true);
+
+ var mirror = RecordProperties(typeof(UnsReferenceVariable)).ToDictionary(p => p.Name, StringComparer.Ordinal);
+ foreach (var p in eligible)
+ {
+ if (NotInheritedByMirror.ContainsKey(p.Name)) continue;
+
+ var counterpart = mirror.GetValueOrDefault(p.Name) ?? mirror.GetValueOrDefault("Backing" + p.Name);
+ counterpart.ShouldNotBeNull(
+ $"RawTagPlan.{p.Name} is applied surgically on the raw node, but UnsReferenceVariable has neither " +
+ $"'{p.Name}' nor 'Backing{p.Name}' — a raw-side edit of it would leave every referencing UNS mirror stale.");
+ counterpart.PropertyType.ShouldBe(p.PropertyType, $"UnsReferenceVariable.{counterpart.Name} vs RawTagPlan.{p.Name}");
+ }
+ }
+
+ /// Every Backing* field on the UNS reference record names a real raw-tag field of the same
+ /// type — a misspelt or orphaned mirror field repairs nothing.
+ [Trait("Category", "Unit")]
+ [Fact]
+ public void Every_Backing_field_names_a_raw_tag_field_of_the_same_type()
+ {
+ var raw = RecordProperties(typeof(RawTagPlan)).ToDictionary(p => p.Name, StringComparer.Ordinal);
+ var backing = RecordProperties(typeof(UnsReferenceVariable))
+ .Where(p => p.Name.StartsWith("Backing", StringComparison.Ordinal) && p.Name != nameof(UnsReferenceVariable.BackingRawPath))
+ .ToList();
+
+ backing.ShouldNotBeEmpty();
+ foreach (var b in backing)
+ {
+ var source = raw.GetValueOrDefault(b.Name["Backing".Length..]);
+ source.ShouldNotBeNull($"UnsReferenceVariable.{b.Name} names no RawTagPlan field");
+ source.PropertyType.ShouldBe(b.PropertyType, $"UnsReferenceVariable.{b.Name} vs RawTagPlan.{source.Name}");
+ }
+ }
+
+ /// The allow-list stays honest: every entry must still be a surgically-eligible raw-tag field.
+ [Trait("Category", "Unit")]
+ [Fact]
+ public void Not_inherited_allow_list_names_only_surgically_eligible_fields()
+ {
+ var eligible = SurgicallyEligibleRawTagFields().Select(p => p.Name).ToHashSet(StringComparer.Ordinal);
+ foreach (var name in NotInheritedByMirror.Keys) eligible.ShouldContain(name);
+ }
+
+ private static IEnumerable RecordProperties(Type t) =>
+ t.GetProperties(BindingFlags.Public | BindingFlags.Instance)
+ .Where(p => p.CanWrite && p.Name != "EqualityContract");
+
+ /// A copy of differing ONLY in .
+ private static RawTagPlan Perturb(RawTagPlan source, PropertyInfo property)
+ {
+ var clone = (RawTagPlan)typeof(RawTagPlan).GetMethod("$")!.Invoke(source, null)!;
+ var value = property.GetValue(source);
+ object? changed = property.PropertyType switch
+ {
+ var t when t == typeof(bool) => !(bool)value!,
+ var t when t == typeof(string) => (string?)value + "-changed",
+ var t when t == typeof(uint?) => ((uint?)value ?? 0u) + 1u,
+ var t when t == typeof(IReadOnlyList) => ((IReadOnlyList)value!).Append("Other/Eq").ToArray(),
+ var t when t == typeof(AddressSpaceRealm) => (AddressSpaceRealm)value! == AddressSpaceRealm.Raw ? AddressSpaceRealm.Uns : AddressSpaceRealm.Raw,
+ var t when t == typeof(EquipmentTagAlarmInfo) => new EquipmentTagAlarmInfo("OffNormalAlarm", 500),
+ var t => throw new InvalidOperationException(
+ $"RawTagPlan.{property.Name} has type {t.Name}, which this guard cannot perturb — add a case so the field is checked."),
+ };
+ property.SetValue(clone, changed);
+ return clone;
+ }
+}