OtOpcUaNodeManager + SdkAddressSpaceSink: the v2 IOpcUaAddressSpaceSink
seam now has a production adapter against a real Opc.Ua.Server
CustomNodeManager2. Writes through OpcUaPublishActor's sink materialise
as real OPC UA Variable updates that subscribed clients see via the
standard ClearChangeMasks notification path.
OtOpcUaNodeManager (CustomNodeManager2):
- Owns a ConcurrentDictionary<string, BaseDataVariableState> under a
single namespace (https://zb.com/otopcua/ns) hung off Objects/.
- WriteValue lazy-creates the variable on first write, sets Value +
StatusCode (mapped from OpcUaQuality severity bits) + SourceTimestamp,
then ClearChangeMasks to notify subscribers.
- WriteAlarmState surfaces a [active, acknowledged] pair on a
dedicated node id — full AlarmConditionState/event firing comes
with #85 F14b (EquipmentNodeWalker SDK integration).
- RebuildAddressSpace tears down every registered variable + clears
the dictionary so the next write-pass starts fresh.
- Address-space root folder is materialised in CreateAddressSpace.
SdkAddressSpaceSink: thin IOpcUaAddressSpaceSink → OtOpcUaNodeManager
bridge. Production DI binding (#108) constructs this once the host's
StandardServer has booted.
OtOpcUaSdkServer (StandardServer subclass): overrides
CreateMasterNodeManager to inject OtOpcUaNodeManager via the
MasterNodeManager additionalManagers ctor. NodeManager property
exposes the live instance so OpcUaApplicationHost callers can wrap
it in a sink.
Tests: OpcUaServer 20 -> 24 (+4):
- WriteValue creates + updates variables in the manager
- WriteAlarmState creates a node distinct from value writes
- RebuildAddressSpace clears everything; subsequent writes start fresh
- NullOpcUaAddressSpaceSink no-op sanity
Each test boots a real OpcUaApplicationHost on a free port with the
SDK certificate auto-create flow (F13a) intact — full integration
slice on macOS.
All 6 v2 test suites green: 167 tests passing.
F10 status updated to reflect SDK binding shipped. Residuals:
- #109 OpcUaPublishActor.RebuildAddressSpace → Phase7Applier wiring
- #108 Host DI default to SdkAddressSpaceSink when hasDriver
- #85 F14b EquipmentNodeWalker integration (proper AlarmConditionState
+ folder hierarchy)
- IServiceLevelPublisher SDK binding (writes Server.ServiceLevel node)
Splits the side-effecting half of Phase7Composer (deferred at Task 47)
into two pieces that mirror DriverHostActor's spawn-plan pattern:
Phase7Plan + Phase7Planner.Compute (pure):
Diff two Phase7CompositionResult snapshots by stable id (EquipmentId,
DriverInstanceId, ScriptedAlarmId). Emits Added/Removed/Changed lists
per entity class. Added/Removed are sorted by id for deterministic
apply order. Changed wraps both Previous and Current projections so
consumers can decide between in-place mutation and tear-down +
rebuild.
Phase7Applier (side-effecting):
Drives an IOpcUaAddressSpaceSink against a plan. Removed equipment/
alarms get an inactive AlarmState write per id; Added/Removed of
Equipment or ScriptedAlarm triggers RebuildAddressSpace. Driver-only
changes correctly skip the rebuild — those flow through DriverHost-
Actor's spawn-plan in Runtime. Sink exceptions are caught + logged so
one bad node doesn't abort the apply.
Tests: OpcUaServer 6 -> 20 (+14):
- Phase7PlannerTests x9 (empty-in/empty-out, add/remove/change per
entity class, mixed changes, deterministic ordering)
- Phase7ApplierTests x5 (empty plan no-op, removal writes inactive
states + rebuild, added equipment triggers rebuild, driver-only
skips rebuild, sink fault is non-fatal)
The remaining piece is the EquipmentNodeWalker integration against a
real SDK NodeManager — split as F14b, gated on F10b's SDK builder.
All 6 v2 test suites green: 146 tests passing.
Adds OPC UA SDK's CheckApplicationInstanceCertificate call to
OpcUaApplicationHost.StartAsync, removing the v1 friction of needing to
pre-create the PKI directory tree before booting.
- New OpcUaApplicationHostOptions.PkiStoreRoot (defaults to "pki")
- BuildConfigurationAsync now derives own/issuer/trusted/rejected from
PkiStoreRoot so the cert paths are configurable + consistent
- EnsureApplicationCertificateAsync runs before StandardServer.Start, and
fails fast with a clear message if the SDK can't produce a valid cert
- 2 new tests: fresh-tree creates a cert, second boot reuses it
Partial slice of follow-up F13. Endpoint-security, user-token validator,
and observability wiring still pending in the F13 follow-up. OpcUaServer
tests: 4 → 6.
Adds the empty project skeletons that subsequent v2 tasks fill in:
src/Core/ZB.MOM.WW.OtOpcUa.Commons (types, interfaces, message contracts)
src/Core/ZB.MOM.WW.OtOpcUa.Cluster (Akka.Hosting + cluster wiring)
src/Server/ZB.MOM.WW.OtOpcUa.Security (cookie+JWT auth, LDAP)
src/Server/ZB.MOM.WW.OtOpcUa.ControlPlane (admin-role cluster singletons)
src/Server/ZB.MOM.WW.OtOpcUa.Runtime (per-node driver actors)
src/Server/ZB.MOM.WW.OtOpcUa.OpcUaServer (OPC UA SDK application host)
src/Server/ZB.MOM.WW.OtOpcUa.AdminUI (Razor class library)
src/Server/ZB.MOM.WW.OtOpcUa.Host (single fused web binary)
Each project sets TreatWarningsAsErrors=true in its own csproj (per the
Directory.Build.props deviation note in the previous commit). NuGetAuditSuppress
entries cover transitive vulnerability advisories the new strictness surfaces:
- GHSA-g94r-2vxg-569j (OpenTelemetry.Api 1.9.0 via Akka.Cluster.Hosting/Tools)
- GHSA-h958-fxgg-g7w3 (Opc.Ua.Core 1.5.374.126 via OpcUaServer)
- GHSA-37gx-xxp4-5rgx + GHSA-w3x6-4m5h-cxqf (legacy advisories already accepted)
OpcUaServer pins OPCFoundation.NetStandard.Opc.Ua.Configuration to 1.5.374.126
via VersionOverride to match Opc.Ua.Server's transitive Opc.Ua.Core (same
constraint as the legacy Server project).
Runtime does NOT project-reference any concrete Driver.* assemblies; drivers
load reflectively at runtime (Phase 6). Runtime gets the IDriver contract
through Core.Abstractions instead.
Host's Microsoft.Extensions.Hosting.WindowsServices is conditional on the
Windows OS so the project builds on macOS dev machines.
Build verification: dotnet build -> 438 warnings (all pre-existing xUnit1051
in legacy Server.Tests/Admin.Tests), 0 errors. Closes Task 9 (build green
smoke check, no separate commit).
Joseph Doherty