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11 Commits

Author SHA1 Message Date
romanett 96c5ef1623 Run the fluent configure pipeline in FluentNodeManagerBase (#4537) (#4538)
## Proposed changes

Closes #4537. The configure pipeline now lives in
`FluentNodeManagerBase`, so a hand-written fluent node manager only
overrides `ConfigureAsync` and no longer writes
`CreateAddressSpaceAsync` itself.

`FluentNodeManagerBase.CreateAddressSpaceAsync` now:
1. loads the predefined nodes (as `AsyncCustomNodeManager` did before),
2. creates a builder for `NamespaceIndex` with `CreateFluentBuilder`,
3. awaits `ConfigureAsync(builder, ct)`,
4. runs `RegisterAuthoredNodesAsync` and then `CompleteConfigureAsync`,
5. finishes with `SealConfigurationAsync`, which seals the builder,
replays `NotifyNodeAdded`, then activates behaviors and simulations.

### Breaking change (2.0)
Some managers need a different order, for example a post-setup runner
before sealing, a builder for another namespace, or work after sealing.
They must stop calling `base.CreateAddressSpaceAsync`, because that
would now run a second, empty pipeline and seal the manager-owned
registries too early. These managers now call
`LoadPredefinedNodesAsync(SystemContext, externalReferences, ct)` and
keep driving their own pipeline:
- the source-generated `NodeManager` template (the ordering test in
`NodeManagerGeneratorTests` is updated)
- `DiNodeManager`, `Isa95NodeManager`, `PositioningNodeManager`,
`RobotIntentNodeManager`, `VisionNodeManager`
- `samples/OpenUsd/SiteCompositionServer/SiteNodeManager`

These now use the base pipeline:
- `samples/FluentApi/BasicFluentApiServer/BasicFluentNodeManager`
becomes a single `ConfigureAsync` override. Before this change it never
sealed its builder.
- the hosting `FluentNodeManager` (from `AddNodeManager(namespaceUri,
build)`) becomes a `ConfigureAsync` override. It now seals through
`SealConfigurationAsync`, so `OnNodeAdded` handlers wired in the build
delegate fire. Before, it called `builder.SealAsync()` directly and they
did not.

Docs (`NodeManagers.md`, `DeviceIntegration.md`) are updated.
`NodeManagers.md` gets a short hand-written `ConfigureAsync` example.

## Types of changes

- [x] Breaking change (fix or feature that would cause existing
functionality to change)
- [x] Enhancement (non-breaking change which adds functionality)

## Checklist

- [x] I have read the CONTRIBUTING doc.
- [x] I have signed the CLA.
- [x] I ran tests locally with my changes, all passed.
- [x] I fixed all failing tests in the CI pipelines.
- [x] I fixed all introduced issues with CodeQL and LGTM.
- [x] I have added tests that prove my fix is effective or that my
feature works.
- [x] I have added necessary documentation (if appropriate).

## Tests

New `FluentNodeManagerBasePipelineTests`: nodes authored in
`ConfigureAsync` get registered, the Objects-folder reference is
mirrored into `externalReferences`, `OnNodeAdded` fires once, and the
builder is sealed afterwards.

Local run on net10.0, all passing:
- Opc.Ua.Server.Tests (Fluent/Hosting/StateMachine/RuntimeNodeSet
filter): 1286
- Opc.Ua.SourceGeneration.Core.Tests (NodeManager filter): 40
- Opc.Ua.Di.Tests 426, ISA95 136, Positioning 69, Robotics 636,
Robotics.Intent 22, Vision 484 (+1 skipped), Vision.Intent 14, OpenUsd
921

🤖 Generated with [Claude Code](https://claude.com/claude-code)

---------

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-09-25 07:48:29 +02:00
romanett ececea15c8 Reimplement the GDS ApplicationsNodeManager as a generated fluent node manager (#4434)
# Description

Builds on #4428, which is now merged; this branch is rebased onto
master.

The GDS `ApplicationsNodeManager` becomes a source-generated
`[NodeManager]`: the companion model, its loader and the fluent plumbing
are emitted, and what stays hand-written is the behaviour. Getting there
needed three things from the shared surface, which are the first two
commits.

## Commits

**1. Add the fluent hooks a hand-written manager needs at startup**

- `OnReadRolePermissions` / `OnReadUserRolePermissions` on the node
builder. Every other `NodeState` `On*` hook was already fluent; these
were not, and a server that grants access on something the static model
cannot express has to compute the permission set per request.
- `Node<TState>(TState)` returns a builder over a node the caller
already holds, for nodes materialised after `Configure` resolved its
graph.
- `OnAddressSpaceReadyAsync` on `FluentNodeManagerBase` — the one seam
between the address space existing and the wiring being applied, for
managers whose wiring depends on asynchronous setup. `Configure` is a
`partial void` and cannot await. `DiNodeManager` had already invented
the hook privately, so its declaration becomes an `override`.

**2. Let a `[NodeManager]` bind to a model a referenced assembly
supplies**

A model belongs to the assembly that emits its types, which leaves a
node manager for it homeless whenever that assembly cannot reference
`Opc.Ua.Server` — a model-only package shared with clients, for
instance. Binding was rejected twice over: the design was skipped before
the binding was matched (`MODELGEN010`), and fluent-accessors-only mode
refused to run alongside manager generation (`MODELGEN014`). The binding
is now matched before the skip decision, and a matched binding puts that
design into accessors-only mode. A design nothing binds to is still
skipped, so this cannot start duplicating types by accident.

The emitted manager also gains what a real manager needs:
`DefaultNamespaceUris()` plus a protected constructor taking a
replacement set; `GenerateDefaultConstructor=false` to suppress the
two-argument form; its own logger category; and the call to
`OnAddressSpaceReadyAsync`.

Generated fluent accessors also stop re-enabling nullable warnings — a
bare `#nullable enable` undid the shared header's `disable warnings`, so
any model with a structure-typed method argument reported CS8600 on
every generated `out T` in a project that builds warnings as errors.

**3. Reimplement the GDS `ApplicationsNodeManager` as a generated node
manager**

The design stays owned by `Opc.Ua.Gds.Common`; the server assembly only
binds a manager to it.

**NodeIds do not move.** `NamespaceIndexes[0]` must stay the application
record namespace — it is the one the application database, the
certificate request store and the base allocator mint ids in — so the
constructor passes the namespace order explicitly rather than adopting
the generated model-first default. A test pins both ends against a live
server.

Four overrides go, leaving `OnAddressSpaceReadyAsync` and
`Dispose(bool)` — no address-space overrides at all:

| Removed | Why it was unnecessary |
| --- | --- |
| `New` | The base allocator already mints into `NamespaceIndexes[0]`,
with a thread-safe counter. The override existed only because
`Create(assignNodeIds: true)` asks the factory with the declaration id
still set; `AssignInstanceNodeId` nulls it and re-asks, documented as
being there for exactly this allocator. |
| `AddBehaviourToPredefinedNodeAsync` | Its `AuthorizationServiceType`
branch re-wired a node that was already wired, and its
`KeyCredentialServiceType` branch had nothing to wire — the model ships
that folder empty. |
| `GetManagerHandleAsync`, `ValidateNodeAsync` | Verbatim
reimplementations of the base that also blocked the fluent base's
virtual-node support. |
| `DeleteAddressSpaceAsync` | A `// TBD` passthrough. |

Everything else — all sixteen directory methods with their
self-administration permissions, the certificate groups' concrete types
and trust-list flags, and the authorization service (created through
this PR's `Add` surface and wired in the same place) — is one
`Configure` pass.

**4. Bind the certificate groups from the `Configure` pass**

Acquiring a certificate group and binding it to its nodes are different
kinds of work: the first is I/O (`InitAsync` opens certificate stores
and creates CA certificates), the second only touches the address space.
Each now runs in the phase it belongs to, which puts the whole of the
wiring in one place.

Ownership no longer rides on the binding. A group joins
`m_ownedCertificateGroups` the moment it is constructed, before
`InitAsync` can throw, so a group that fails half way through is still
disposed — which the previous code could not manage, keying ownership
off a dictionary it filled only after initialization succeeded.

> Commit 3's message says this move is impossible and blames `PushTest`.
**That was a wrong diagnosis, and this commit supersedes it.** Two real
defects were hiding behind those failures:

- **`Create(..., NodeId.Null, ..., assignNodeIds: false)` does not null
the NodeId.** `NodeState.Create` overrides it only when handed a
non-null one, so a custom group node kept the namespace-0 id of its type
declaration. `AssignInstanceNodeId` hid this by re-asking the factory
with the id nulled; the builder validates instead, and rejected it. The
node is now created with an id in the manager's own namespace, as the
`Default` authorization service already was.
- **The custom certificate group node was not browseable.** It answered
`GetCertificateGroups` and `ReadNode`, but a type-filtered recursive
browse from the Objects folder never returned it — which OPC 10000-12
§7.8.2 requires of a certificate group. Staging the node through the
builder gives it the reference it was missing.

### Two `PushTest` methods change — please review these closely

The second defect had been masking what those tests actually did.
Selecting the group positionally, `groups[3]` resolved to the server's
**own `ServerConfiguration` group** while the custom one stayed
invisible, so `UpdateTrustListOfCustomGroupAsync` and
`AddRemoveCertOfCustomGroupAsync` were exercising a *transactional*
trust list under a custom-group name.

Browse results, before and after:

| # | Before (baseline) | After |
| --- | --- | --- |
| 0-2 | GDS Directory groups (`ns=3`) | GDS Directory groups (`ns=3`) |
| 3 | **`DefaultApplicationGroup` `i=14156`** — the server's own |
**`MyCustomGroup` `ns=2`** |
| 4 | — | `DefaultApplicationGroup` `i=14156` |

They now resolve the group by browse name — which asserts it is
browseable at all — and expect the immediate-apply semantics the GDS
actually gives the groups of its own `Directory`: `CloseAndUpdate`
writes the stores at once and reports `applyChangesRequired == false`,
so the `ApplyChanges` calls go away (they would return
`Bad_NothingToDo`). The read-back assertions are what prove the writes
landed, and they are unchanged.

This is a genuine loss of the *transactional* trust-list coverage those
two methods were accidentally providing — the server's own group is
still covered by the other `PushTest` methods, which target it
deliberately.

**5. Select `GetCertificates` results by type instead of by position**

`GetCertificatesAsync` checked entry zero of a parallel-array result.
Which entry that is depends on the order the server reports its
certificate types in, an empty result throws `IndexOutOfRange` rather
than failing an assertion, and a second type going missing or
unparseable would not be noticed. Every returned pair is now checked,
and a failure names the certificate type.

**6. Drop the `.Common` suffix from the three GDS projects**

Every other companion specification ships as `<Family>` /
`<Family>.Client` / `<Family>.Server` — Di, ISA95, Positioning,
Robotics, Vision, WotCon, XRegistry. GDS was the exception, with a
`.Common` suffix that named nothing.

| Before | After |
| --- | --- |
| `src/Opc.Ua.Gds.Common` | `src/Opc.Ua.Gds` |
| `src/Opc.Ua.Gds.Client.Common` | `src/Opc.Ua.Gds.Client` |
| `src/Opc.Ua.Gds.Server.Common` | `src/Opc.Ua.Gds.Server` |

**No source changes were needed.** `RootNamespace` was already the final
name in all three projects — the namespaces have always been
`Opc.Ua.Gds`, `Opc.Ua.Gds.Client` and `Opc.Ua.Gds.Server`, and only the
assembly and package ids disagreed. Nothing compiling against these
assemblies changes a `using`.

The package ids do change, which is consumer-visible, so
`docs/migrate/2.0.x/packages.md` gains a renamed-packages section — it
is the document that undertakes to cover NuGet renames — and the
migration skill's package table gains the two rows a 1.5.378 consumer
needs.

Build infrastructure that names the projects or their output moves with
them: both solution files, `expected-packages.txt` (re-sorted — it is
maintained alphabetically), both signing manifests, the reference-server
Dockerfile, the metapackage nuspecs, and the analyzer's package
dependencies. `preview-pack.slnx` is derived from `UA.slnx` and needs no
edit. The migration analyzer's shim tree mirrors the source layout by
its own documented convention, so `Gds.Client.Common/` becomes
`Gds.Client/`.

Prose naming past work is left alone — plan 23 still records that its
deferral happened during the "GDS Client.Common modernization", which is
the name that effort had.

## Validation

`net10.0`, on master + these four commits, from a clean GDS PKI:

- `UA.slnx`: 0 errors, 0 warnings in changed files (the solution's 30
pre-existing warning lines are CA1861/CA1850/CA1307 in `XRegistry`,
`Types.Tests` and `WotCon.Tests` — same rules and projects as the base).
- `Opc.Ua.Gds.Tests`: 1,117 passed, 0 failed, 54 skipped — identical to
the base branch.
- `Opc.Ua.Server.Tests`: 4,961 passed, 0 failed, 5 skipped (measured
before commit 4, which touches only the GDS assembly and its tests).
- `Opc.Ua.SourceGeneration.Tests`: 169 passed.
- `Opc.Ua.SourceGeneration.Core.Tests`, NodeManager/Generators/Fluent:
84 passed; `GenerateCode`: 21 passed, 4 skipped.
- `Opc.Ua.MigrationAnalyzer.Core.Tests`: 10 passed, 3 skipped.
- After the rename: assemblies build as `Opc.Ua.Gds.dll` / `.Client.dll`
/ `.Server.dll`, with no `*.Common.dll` produced anywhere.
- Commits 1-3 build standalone.
- `Opc.Ua.Gds.Server.Common` also builds for `net48` and
`netstandard2.1` (checked before the rebase onto #4428).

Not yet run: the full `Opc.Ua.SourceGeneration.Core.Tests` suite
(~3,800), and the older target frameworks since the rebase.

## Checklist

- [x] Existing tests pass
- [x] New tests cover the new surface (role permissions, resolved-node
builder, referenced-model binding, constructor/namespace control, GDS
namespace invariant, custom-group node namespace)
- [ ] Full Core.Tests sweep and net48/netstandard2.1 re-run after the
rebase

🤖 Generated with [Claude Code](https://claude.com/claude-code)

---------

Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
2026-09-09 10:41:06 +02:00
romanett 105508bcbd Mint runtime NodeIds through a single DefaultNodeIdFactory (#4433)
# Description

Nodes created at runtime now get their NodeIds from a single
`DefaultNodeIdFactory` rather than from a `New` override per
NodeManager.
The factory derives a deterministic identifier from a canonical,
length-prefixed browse path, which is injective where the classic
`{parent}_{child}` concatenation was not — `A_B` + `C` and `A` + `B_C`
both produced `A_B_C` — and it also records the parent's identifier type
and qualifies cross-namespace segments by URI, so identifiers no longer
shift with namespace-table ordering.

A NodeManager selects its style declaratively instead of writing
assignment code:

```csharp
NodeIdFactory = NodeIdFactory.WithMode(NodeIdAssignmentMode.Counter);
```

`NodeIdAssignmentMode` offers `String` (the canonical path verbatim, the
default), `Numeric` / `Guid` / `Opaque` (that path through SHA-256),
`Counter` (sequential, for nodes whose browse paths repeat — per-session
diagnostics, inference jobs, rediscovered assets) and `None`. The
counter
starts above `0x40000000`, out of reach of any authored model, so a
long-running server cannot walk a runtime instance onto a type node.

`New` overrides are gone from every NodeManager the stack ships except
two whose identifiers are a domain scheme rather than an assignment
policy: `FileSystemNodeManager`, whose NodeIds encode the file path they
resolve back to, and `RoboticsNodeManager`, whose build coordinator
reserves identifiers across managers with ownership tracking.

**Namespace rule.** Every identifier is minted into the NodeManager's
own
namespace. Neither the parent's namespace nor the browse name's is
consulted: a parent can belong to a companion-specification model whose
NodeIds are fixed by its NodeSet (`DeviceSet` in the DI namespace), and
a
browse name only names the type that declared the child. NodeManagers
whose instance namespace is not their first one rebase with
`WithDefaultNamespaceIndex`.

**Types vs instances.** An authored NodeId on a node that stands on its
own is kept. A node hanging off a parent is re-minted, because it
reached
the factory through `AssignNodeIds` walking a subtree copied from a type
declaration. Keeping those would alias every instance onto the type's
own
nodes, and the predefined-node index takes the last writer, so the type
would quietly become an instance rather than the clash being reported.

New `ISystemContext.CreateInstance(...)` builds an instance of a
generated
type and rebases its subtree through `AssignInstanceNodeId` — the path
the
generated `CreateInstanceOf<Type>` helpers already took. The AI
NodeManager was the one place calling `NodeState.Create` directly, so
its
roots kept the NodeId their state object is born with (the type's own);
it now uses the shared path.

## Breaking changes

- `IAsyncNodeManager` extends `INodeIdFactory` and gains `AddNode` and
  `AddRootNotifier`. This lets the fluent surface mint and register
  through the interface instead of type-testing for
  `AsyncCustomNodeManager` and silently falling back to a concatenated
  identifier when the test failed — that fallback was itself a source of
  divergent NodeIds.
- `AsyncNodeManagerAdapter` delegates `New` to the wrapped NodeManager,
so
**`CustomNodeManager2` behaves exactly as before**: it mints nothing and
  a node keeps whatever NodeId it already has. Servers built on it are
  unaffected.

## Notes for reviewers

- `docs/NodeIdAssignment.md` is new and describes the whole mechanism:
the
  factory contract, identifier formats, type declarations vs instances,
  the generated helpers and their parameters, per-NodeManager behaviour,
  and an inventory of every member involved.
- The three commits are independently revertible.
- Two pieces that look redundant are deliberately kept, with the
reasoning
  recorded in the doc: `assignInstanceNodeIds` (it *suppresses* minting,
  where the rebase rule *forces* it) and the generator's
  `NodeId.Equals(TypeNodeIdConstant)` guard (it distinguishes a
  caller-assigned NodeId from a declaration's).
- Fluent builder tests previously passed only because of the removed
  fallback; they now run against a real `DefaultNodeIdFactory` through a
  shared `FluentTestNodeManager` helper.

## Related Issues

_No tracking issue yet._

## Checklist

- [ ] I have signed the
[CLA](https://opcfoundation.org/license/cla/ContributorLicenseAgreementv1.0.pdf)
and read the
[CONTRIBUTING](https://github.com/OPCFoundation/UA-.NETStandard/blob/master/CONTRIBUTING.md)
doc.
- [x] I have added tests that prove my fix is effective or that my
feature works and increased code coverage.
- [x] I have added all necessary documentation.
- [x] I have verified that my changes do not introduce (new) build or
analyzer warnings.
- [ ] I ran **all** tests locally using the **UA.slnx** solution against
at least .net **framework** and .net **10**, and all passed.
- [ ] I fixed **all** failing and flaky tests in the CI pipelines and
**all** CodeQL warnings.
- [ ] I have addressed **all** PR feedback received.

> Test runs were on **net10.0 only** — .NET Framework was not exercised
> locally. Suites run green on an idle machine: Server 4950/4955, GDS
> 1116/1170, WotCon 1225/1225, Vision 484/485, DI 424/424, AI 174/174,
> ISA95 136/136, Positioning 69/69, RobotIntent 22/22. One unrelated
> pre-existing failure remains in `Opc.Ua.Types.Tests`
> (`EveryEmbeddedExampleMatchesItsRecordedHash`) — a WoT fixture checked
> out with CRLF, fixed by
> `git add --renormalize tests/Opc.Ua.Types.Tests/Wot/Assets`.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

---------

Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
2026-09-08 14:37:19 +00:00
romanett 668310f21f Make the fluent node manager's configure/seal path genuinely async (#4442)
# Description

The fluent node-manager pipeline had two synchronous chokepoints, and
two independent efforts have now hit both of them.

`Configure` is a `partial void`, so it cannot `await`. A manager whose
wiring depends on asynchronous setup had to invent a second hook outside
the pipeline, create its own builder there, and hand-roll
`CreateFluentBuilder(...).Configure(...).Seal()` inside it.

`Seal()` was synchronous, so nothing a registration staged during
`Configure` could be completed by awaiting. Registrations that needed to
await either blocked — `EventSourceRegistry` did
`.GetAwaiter().GetResult()` on the manager's root-notifier registration
— or could not be expressed at all.

## What changed

**`FluentNodeManagerBase.ConfigureAsync(INodeManagerBuilder,
CancellationToken)`** is the awaitable wiring seam. It runs once per
activation, with the manager's attached builder, immediately *before*
the synchronous `Configure` partial(s) — so instances it materialises
are in the address space by the time `Configure` wires callbacks against
them. The default implementation is a no-op.

It is a `virtual` method rather than a second `partial` declaration
because a partial method can be optional (`partial void`, no return
value) or awaitable (an extended partial method, which must be
implemented) — not both, and the generator would otherwise have to
detect which one the user declared. `partial void
Configure(INodeManagerBuilder)` keeps working unchanged; a manager uses
either hook or both.

**`NodeManagerBuilder.Seal()` becomes `SealAsync(CancellationToken)`.**
Sealing is now the single point where registrations that could not
finish inside `Configure` get their turn to await. Every seal site
awaits it, so a later change can move registry *setup* onto the same
seam.

**`DiNodeManager` now runs the standard pipeline itself** — create and
attach the builder, `await ConfigureAsync`,
`RegisterAuthoredNodesAsync`, `CompleteConfigureAsync`, the post-setup
runner, then `await builder.SealAsync` — instead of handing subclasses a
bare callback and leaving them to build and seal on their own. DI
subclasses gain node registration and the reverse-reference pass, which
they previously skipped.

Sealing deliberately comes **after** the post-setup runner. The fluent
registries are owned by the manager, not by a single builder, and
sealing starts them — so sealing first locks post-setup configurators
out of registering simulation loops of their own, which is exactly what
`AddRobotics`' configurators do. Sealing before the runner makes
`MinimalRobotServer` fail to start with *"Cannot add a simulation loop
after the registry has started"*. Worth knowing for follow-up work: with
several builders attached to one manager, the first seal freezes the
shared registry for all of them.

## Workarounds removed

- **`DiNodeManager.OnAddressSpaceReadyAsync`** — deleted. Its three
overriders (`RoboticsNodeManager`, and the `PumpNodeManager` /
`GeneratorNodeManager` samples) now override `ConfigureAsync` and no
longer hand-roll `CreateFluentBuilder(...).Configure(Configure).Seal()`.
- **`EventSourceRegistry`'s `.GetAwaiter().GetResult()`** on
`AddRootNotifierAsync` — gone. `Publish(..., RegisterAsRootNotifier:
true)` now stages the registration and `SealAsync` drains it, so the
wait happens on an awaited path. A source whose root-notifier
registration fails is rolled out of the registry before the failure
surfaces, and a registry disposed before its builder sealed drops what
it staged.
- **`Isa95NodeManager.ConfigureStatusEvents()`** — the synchronous
second builder pass is now
`ConfigureStatusEventsAsync(CancellationToken)`, awaited from
`CreateAddressSpaceAsync`. (`ConfigureCatalogChanges()` stays
synchronous: it starts a background task and never seals a builder, so
there was nothing to convert.)
- **`IRoboticsBuildContext.Seal()`** — now
`SealAsync(CancellationToken)`. These really were
`NodeManagerBuilder.Seal()` calls behind a same-named method. The state
transition still happens under the context lock; the builder's
asynchronous completion runs outside it, so no `await` is taken while
the lock is held.
- The Pump / Generator incremental registration callbacks
(`onRegistered`) changed from `Action<T>` to `Func<T, CancellationToken,
ValueTask>` so their per-instance builder pass can await its own seal.

No sync-over-async was introduced anywhere. `Dispose(bool)` is unchanged
and stays non-blocking; teardown remains in `DeleteAddressSpaceAsync`.

`NodeManagerBuilder.Seal()` and `IRoboticsBuildContext.Seal()` are
removed rather than kept as synchronous overloads. A synchronous seal
that silently skipped the asynchronous completion would reintroduce
exactly the failure mode this change exists to remove.

## Generator

`NodeManagerTemplates` emits, in order: predefined nodes load → `await
ConfigureAsync(__m_builder, cancellationToken)` →
`Configure(__m_builder)` and the typed `Configure` →
`RegisterAuthoredNodesAsync` → `CompleteConfigureAsync` → `await
SealConfigurationAsync(__m_builder, cancellationToken)`.

`NodeManagerGeneratorTests` asserts that order literally, and that
neither `__m_builder.Seal()` nor the synchronous
`SealConfiguration(__m_builder)` is emitted.

### Merging with #4432

#4432 landed on `master` while this was in review and reworked the same
seam from the other side: it split `Seal()` into `SealGraphAuthoring()`
+ `StartSimulations()` so a manager can replay `NotifyNodeAdded`
*between* the two halves — sealing first stops a lifecycle handler
authoring nodes nothing would register, starting the simulations last
stops a simulated value change preceding its own node''s `OnNodeAdded` —
and added `FluentNodeManagerBase.SealConfiguration(builder)` as the one
call the generator emits.

Both intents are kept. That split is precisely why the asynchronous
completion could not simply live inside `SealAsync`: a manager reaching
the seam through the split path would silently skip it, which is the
failure mode this PR exists to remove. So the asynchronous half became
its own step:

- `NodeManagerBuilder.CompleteSealAsync(ct)` drains the staged
root-notifier registrations, then starts the simulations.
`SealAsync(ct)` is `SealGraphAuthoring()` followed by it.
- #4432''s synchronous `StartSimulations()` is gone, folded into
`CompleteSealAsync`. It had exactly one production caller after the
merge, and leaving it standing would have kept a second, synchronous way
to activate a builder that skips the staged registrations — the very
hazard this PR removes. Activation is now one step with one entry point;
the *split* itself stays, because the replay has to sit between the
halves.
- `SealConfiguration` becomes `SealConfigurationAsync(builder, ct)`:
seal the graph, replay `NotifyNodeAdded`, then `CompleteSealAsync`.
Activation still happens last, so #4432''s ordering guarantee holds
unchanged.

## Consumers unblocked

- **#4434 ("Reimplement the GDS ApplicationsNodeManager as a generated
fluent node manager")** adds `OnAddressSpaceReadyAsync` to
`FluentNodeManagerBase` purely because, in its own words, *"`Configure`
is a `partial void` and cannot await"*. That hook is unnecessary once
`ConfigureAsync` exists — the GDS manager overrides `ConfigureAsync`
instead, and the ordering it wants (predefined nodes → async setup →
`Configure`) is what the generator now emits. #4434 has not merged yet,
so it can drop its addition rather than have it simplified afterwards.
- **Branch `romanett/fluent-node-behaviors`** moved
`SimulationRegistry`, `EventSourceRegistry`, `MonitoredSourceRegistry`
and the alarm wiring onto `AttachToType`/`Attach` for *release* only,
because activation ran from `CompleteConfigureAsync` and most managers
only called the synchronous `Seal()`. Every seal site now reaches
`SealAsync`, so registry and alarm *setup* can move onto behavior
activation too — the remaining half of that work.

## Tests

- New `DiNodeManagerConfigureAsyncTests` drives the real
`DiNodeManager.CreateAddressSpaceAsync` and asserts the hook runs once
with an attached builder, that nodes it stages are registered, that
their references to externally owned nodes are published, and that the
builder is sealed before `CreateAddressSpaceAsync` returns.
- `PublishTests` now pins the root-notifier deferral contract:
registration is staged during `Configure`, lands only on the seal, and
draining twice does not double-register.
- Every `Seal()` call site in the test suites became `await
...SealAsync()`, including the three #4432 added in
`NodeSetImportBuilderTests` and `SimulationBuilderExtensionsTests`.

## Related Issues

No tracking issue was opened for this; it is the shared prerequisite
extracted from #4434 and branch `romanett/fluent-node-behaviors`, both
of which had independently worked around the same synchrony. Happy to
open one if maintainers want the ADR trail.

## Checklist

- [x] I have signed the
[CLA](https://opcfoundation.org/license/cla/ContributorLicenseAgreementv1.0.pdf)
and read the
[CONTRIBUTING](https://github.com/OPCFoundation/UA-.NETStandard/blob/master/CONTRIBUTING.md)
doc.
- [x] I have added tests that prove my fix is effective or that my
feature works and increased code coverage.
- [x] I have added all necessary documentation.
- [x] I have verified that my changes do not introduce (new) build or
analyzer warnings.
- [ ] I ran **all** tests locally using the **UA.slnx** solution against
at least .net **framework** and .net **10**, and all passed.
- [ ] I fixed **all** failing and flaky tests in the CI pipelines and
**all** CodeQL warnings.
- [ ] I have addressed **all** PR feedback received.

### What was actually run locally

`UA.slnx` builds clean. Post-merge on **net10.0**: `Opc.Ua.Server.Tests`
5020/0 and `Opc.Ua.SourceGeneration.Core.Tests` 3813/0. Pre-merge the
same run plus `Opc.Ua.Di.Tests` 425/0, `Opc.Ua.Robotics.Tests` 627/0,
`Opc.Ua.ISA95.Tests` 136/0, `Opc.Ua.Positioning.Tests` and
`Opc.Ua.Robotics.Intent.Tests` were all green; `MinimalRobotServer` was
also started directly to confirm the hosted robotics path comes up.

Three caveats, so the unchecked box above is not a mystery: the full
suite was **not** run against .NET Framework locally;
`Opc.Ua.OpenUsd.Tests` has one pre-existing failure on this machine
(`StructuredCartesianCoordinatesAreAccepted` expects `"1.5"` and gets
`"1,5"` — a German-locale decimal separator, unrelated to this change);
and one pre-existing `CA1861` warning comes from
`NodeSetImportIntegrationTests.cs`, which is byte-identical to `master`
on this branch.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

---------

Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
2026-09-08 12:01:56 +00:00
romanett 30ed2390a8 Import NodeSet2 documents into a fluent node manager (#4432)
## What

`INodeManagerBuilder.Import(UANodeSet, INodeSetImportFactoryProvider?)`
lets a source-generated (or hand-written fluent) node manager overlay a
NodeSet2 document that is only known at runtime onto the model it was
generated from.

Every document imported during one `Configure` pass forms a single batch
that is linked **exactly once** after the pass. A node may therefore
declare a `ParentNodeId` that lives in another document of the batch, or
a node the manager already owns — which is what makes an overlay
possible. Imported nodes resolve through
`Node(...)`/`NodeFromTypeId(...)` immediately, so they can be wired in
the same pass; they are registered with the manager when
`CompleteConfigureAsync` runs.

### Public surface

- **+1 method**: `INodeManagerBuilder.Import(UANodeSet nodeSet,
INodeSetImportFactoryProvider? factoryProvider = null)`.
- **+3 contracts** in `Opc.Ua.Server.Nodes`:
`INodeSetImportFactoryProvider`, `INodeSetImportFactory`,
`NodeSetImportDiscriminator` (TypeDefinition / MethodDeclaration /
NodeId).
- In `Opc.Ua.Export`: a public `UANodeSet.Import` overload taking a
`NodeSetImportStateFactory`, and a public batch
`LinkParentChildRelationships(context, nodes,
NodeSetImportLinkOptions)`. These replace what would otherwise have been
an `InternalsVisibleTo("Opc.Ua.Server")` on `Opc.Ua.Types`.
- `NodeState.IsExplicitlyDefinedChild(context, child)` and `protected
DetachExplicitlyDefinedChild(child)`, used to tell a generated slot
apart from an ordinary child.

### Typed states, no reflection

The generator emits `{Model}NodeSetImportFactoryProvider` — one factory
per model type/declaration, each calling a concrete constructor for an
*empty* state — and makes the generated node manager implement
`INodeSetImportFactoryProvider` by delegating to it. So the builder
resolves the provider from the manager (`NodeManager as
INodeSetImportFactoryProvider`); `Import` also accepts one directly, and
the generated manager exposes `partial void
AddNodeSetImportFactories(List<INodeSetImportFactory>)` for dependency
models. An imported node of a generated type materializes as its
generated `*State` subclass with no type lookup, which keeps the path
NativeAOT-safe.

Because the factories create empty states, an imported instance carries
exactly the children its document declares.

### Reconciliation

When an imported child lands in a slot the generated parent declares
(same BrowseName), it replaces the generated placeholder: the displaced
node and every descendant the document does not carry over are removed
from the manager, and references to them are retargeted at the
replacement. Replacing a node the same `Configure` pass already wired is
rejected with `BadInvalidState` rather than silently dropping the
wiring, and sealing a builder with an unregistered import batch is
rejected too.

### Also

- `RuntimeNodeSetNodeManager` now uses the same importer: its documents
are one batch, so a node may declare a parent in another document of the
group regardless of parse order, and duplicate NodeIds across documents
are detected while parsing.
- Linking resolves an imported child's reference type from its own
inverse reference (previously always `HasComponent`/`HasProperty`).
- Method import keeps the document's `UserExecutable`; it previously
copied `Executable` into it. View import keeps `EventNotifier`.

## Tests

- `NodeSetImporterTests` (15) — discriminator selection, generic
fallbacks, field/value/reference fidelity against a generic import,
cross-document linking, typed replacement of inherited and argument
slots, deferred linking preserving an application `Handle`, duplicate
NodeIds, factory misuse.
- `NodeSetImportBuilderTests` (15) — staging and lookup before
registration, batch linking, attaching to an existing node, provider
resolution, placeholder replacement with reference retargeting,
configured-placeholder rejection, seal/completion guards.
- `NodeSetImportIntegrationTests` (5) — a generated `[NodeManager]`
overlaying its own model on a running server: typed states through the
generated provider, cross-document linking, placeholder replacement, and
browse through a session.
- `NodeManagerGeneratorTests` (+4) — the emitted provider and the
manager's delegation, including that no factory uses
`Activator.CreateInstance`/reflection.
- `NodeSetAotTests` (+1) — the public state-factory import under
NativeAOT.

Full `Opc.Ua.Server.Tests` (4946), `Opc.Ua.SourceGeneration.Core.Tests`
(3821), `Opc.Ua.SourceGeneration.Tests` (165) and `Opc.Ua.Types.Tests`
pass locally on net10.0.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

---------

Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
2026-09-07 23:12:43 +00:00
romanett 39602bccb1 Add node creation to the fluent node manager builder (#4428)
# Description

`INodeManagerBuilder` gains a node **creation** surface alongside its
existing lookup surface, so a `Configure` partial can fill a namespace
without a NodeSet or a ModelDesign.

Twelve new members, implemented as ordinary public members on
`NodeManagerBuilder` (new partial file
`NodeManagerBuilder.Authoring.cs`):

| Member | Creates |
| --- | --- |
| `AddFolder(name, parentId)` | a `FolderState` (`Organizes`) |
| `AddObject(name, parentId, typeDefinitionId)` | a `BaseObjectState` |
| `AddVariable<TValue>(name, parentId)` | a `BaseDataVariableState`
whose `DataType`/`ValueRank` come from `TValue` |
| `AddMethod(name, parentId)` | an executable `MethodState` |
| `Add<TState>(node, parentId)` | an already-constructed state of any
`NodeState` subclass |
| `Add<TState>(factory, parentId)` | a state built by a factory that
receives the resolved parent |
| `AddRoot<TState>(node)` | a root, with its existing references left
alone |
| `TryGetNode(nodeId, out node)` | lookup across
created-but-not-yet-registered nodes and predefined nodes |

Each `Add*` for a browse name takes a `string` (qualified with the
manager's default namespace) or a `QualifiedName` carrying an explicit
nonzero namespace index — eight overloads plus the four above.

```csharp
partial void Configure(INodeManagerBuilder builder)
{
    INodeBuilder<FolderState> machines = builder.AddFolder("Machines");

    builder.AddVariable<double>("Pressure", machines.Node.NodeId)
        .OnRead(() => m_sensor.Pressure);

    builder.AddMethod("Reset", machines.Node.NodeId)
        .OnCall(ResetAsync);
}
```

Three properties make this usable straight from `Configure`:

- **NodeIds are final before the builder comes back.** Every `Add*` runs
the node — and its whole subtree — through the manager's
`INodeIdFactory` before returning, so `OnRead`/`OnWrite` registrations,
which key off `NodeState.NodeId`, stay valid once the node is
registered.
- **Creation is staged, not immediate.** Created nodes are held until
the manager calls `RegisterAuthoredNodesAsync`. That is what lets a node
name a sibling created moments earlier, and it keeps the builder usable
before the manager has finished building its address space.
- **Custom state types stay typed.** `Add<TState>` returns
`INodeBuilder<TState>`, so a hand-written `NodeState` subclass keeps its
type through the fluent chain.

Staging also makes the builder's own lookups see created nodes: browse
paths, `NodeId`, `TypeDefinitionId` and `DataType` resolution all
consult the staged graph before falling back to the manager's predefined
nodes.

### Registration ordering

A new `protected
FluentNodeManagerBase.RegisterAuthoredNodesAsync(builder, ct)` hands the
staged roots to `AddPredefinedNodeAsync`. It runs **after** the
`Configure` delegates and **before** `CompleteConfigureAsync`, so the
reverse-reference pass sees the new nodes and mirrors their references
to externally owned nodes (typically the ns=0 `Objects` folder) into
`externalReferences`. Three call sites emit it in that position:

- the source-generated `CreateAddressSpaceAsync`
(`NodeManagerTemplates`)
- the hosting `FluentNodeManager` (`FluentNodeManagerFactory`)
- `RuntimeNodeSetNodeManager`, which additionally re-runs
`AddReverseReferencesAsync` because its first pass happens before
`Configure`

A builder that created nothing registers nothing, so the call is safe to
make unconditionally.

The surface is available to **every** fluent host — there is no opt-in
gate and no second builder interface. The generated typed builder
(`FluentBuilderGenerator`) forwards the new members like the rest of
`INodeManagerBuilder`.

### Supporting change

`AsyncCustomNodeManager.PrepareAuthoredNodeIdsForRegistration`
(internal) assigns an id to every node in a subtree that still lacks one
and pulls namespace-0 children into the root's namespace. It differs
from the existing `PrepareInstanceNodeIdsForRegistration`, which only
rebases a subtree that collides with a declaration. It is idempotent.

## Related Issues

- Follow-up tracked in #4429 (adopting this surface in the remaining
hand-rolled node managers, which each need a base-class change first).
- No tracking issue for the API itself yet; happy to open one if
maintainers would like the design recorded as an ADR before review.

## Notes for reviewers

Three judgement calls worth a look:

1. **Always-on rather than gated.** The feature is available to every
fluent host with no enable call. There is no `INodeSource`-style concept
here to withhold it from, so an always-on capability is the same
behaviour with one fewer state flag. Misuse is still rejected: `Add*`
after `Seal()` or after registration throws `BadInvalidState`, a NodeId
in a namespace the manager does not own throws `BadNodeIdInvalid`, and a
parent in one of the manager's *own* namespaces that was never created
throws `BadNodeIdUnknown`.
2. **Detaching from the external-parent proxy goes through
`AddChild`/`RemoveChild`.** The factory overload hands the factory an
identity-only proxy when the parent belongs to another node manager,
then has to drop the parent link the factory established.
`BaseInstanceState.Parent` has an `internal` setter scoped to
`Opc.Ua.Types`, so this pair is the only public route. Commented as such
at the call site. An alternative would be widening that setter or adding
`InternalsVisibleTo` — happy to switch if preferred.
3. **`PrepareNodeIds` does not re-walk per descendant.** The root pass
already covers the subtree, so per-child calls would be no-ops on a
quadratic walk; descendants are only namespace-validated.

One inherited behaviour the new tests pinned down:
`BaseObjectState(parent)` sets `ReferenceTypeId = HasComponent` in its
own constructor, so a node built via the factory overload lands under
the `Objects` folder with `HasComponent`, while the plain `AddObject`
path picks `Organizes`. That asymmetry predates this PR; flagging it in
case it is worth normalizing separately.

`Import(UANodeSet)` is deliberately **not** part of this change — it
belongs to NodeSet import rather than node creation.

## Test results

19 new tests in
`tests/Opc.Ua.Server.Tests/Fluent/NodeManagerBuilderAuthoringTests.cs`
cover NodeId assignment before return, parent-by-NodeId nesting, the
default Objects-folder placement and its inverse reference, custom state
types, both factory paths (authored parent and external-parent proxy),
`AddRoot` reference preservation, `TryGetNode`, id-keyed read handlers
firing on the registered instance, browse-path/NodeId visibility of
created nodes, and every rejection path listed above.

Run against **net10.0** (`-p:CustomTestTarget=net10.0`):

| Suite | Result |
| --- | --- |
| `Opc.Ua.Server.Tests` | 4926 passed, 0 failed, 5 skipped |
| `Opc.Ua.SourceGeneration.Core.Tests` | 3809 passed, 0 failed, 8
skipped |
| `Opc.Ua.SourceGeneration.Tests` | 165 passed, 0 failed |

`UA.slnx` builds with 0 errors and no new warnings.

## Checklist

- [ ] I have signed the
[CLA](https://opcfoundation.org/license/cla/ContributorLicenseAgreementv1.0.pdf)
and read the
[CONTRIBUTING](https://github.com/OPCFoundation/UA-.NETStandard/blob/master/CONTRIBUTING.md)
doc.
- [x] I have added tests that prove my fix is effective or that my
feature works and increased code coverage.
- [x] I have added all necessary documentation. (New `Creating nodes
from scratch — the Add* surface` section in `docs/NodeManagers.md`, plus
TOC entry.)
- [x] I have verified that my changes do not introduce (new) build or
analyzer warnings.
- [ ] I ran **all** tests locally using the **UA.slnx** solution against
at least .net **framework** and .net **10**, and all passed. — **net10.0
only so far** (results above); .NET Framework has not been run locally
yet.
- [ ] I fixed **all** failing and flaky tests in the CI pipelines and
**all** CodeQL warnings. — pending first CI run.
- [ ] I have addressed **all** PR feedback received.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

---------

Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
2026-09-07 07:53:38 +02:00
Marc Schier 02ea934a31 Complete fluent node manager extensibility (#4418)
# Description

Complete the fluent node-manager extensibility surface needed by dynamic
and externally backed address spaces.

This change:

- adds virtual node families with cheap NodeId ownership checks, async
materialization, per-operation caching, custom browsing, and
family-level callbacks;
- adds monitored-item pre-creation decisions, complete lifecycle hooks,
async batch hooks, stack-managed custom monitored items, and
subscription-gated polling;
- exposes the startup `ApplicationConfiguration` to generated manager
partials through `FluentNodeManagerBase`;
- fixes typed builder proxy support, concrete object wrapper types, and
fully-qualified generated model composition;
- reports unresolved `[NodeManager]` namespace expressions as
`MODELGEN035` instead of silently dropping them;
- documents the new APIs and compatibility behavior.

## Related Issues

- Fixes #4397
- Fixes #4398
- Fixes #4399
- Fixes #4403
- Fixes #4404
- Fixes #4405

## Validation

- `Opc.Ua.Server.Tests` on `net10.0`: 4,886 passed, 5 skipped.
- `Opc.Ua.SourceGeneration.Core.Tests` on `net10.0`: 3,807 passed, 8
skipped.
- `Opc.Ua.SourceGeneration.Tests` on `net10.0`: 164 passed.
- Runtime and generator regression selections passed on `net48`.
- Review-feedback validation: 376 fluent tests passed on `net10.0`; 22
focused tests passed on `net48`.
- The CI timing regression was repeated five times on `net48` and once
on `net10.0`.
- All 266 applicable GitHub Actions and Azure Pipelines checks,
including CodeQL and coverage, pass on `83c571423`.
- AppVeyor reports an immediate zero-duration no-run failure because
`appveyor.yml` whitelists only the `appveyor` branch; it did not execute
this PR.
- `UA.slnx` builds successfully for `net10.0`; affected project builds
are warning-free.
- The repository-wide `dotnet test UA.slnx` invocation is currently
blocked by the solution's mixed VSTest/Microsoft.Testing.Platform
configuration under the .NET 10 SDK, so the affected test projects were
run individually.

## Checklist

- [ ] I have signed the
[CLA](https://opcfoundation.org/license/cla/ContributorLicenseAgreementv1.0.pdf)
and read the
[CONTRIBUTING](https://github.com/OPCFoundation/UA-.NETStandard/blob/master/CONTRIBUTING.md)
doc.
- [x] I have added tests that prove my fix is effective or that my
feature works and increased code coverage.
- [x] I have added all necessary documentation.
- [x] I have verified that my changes do not introduce (new) build or
analyzer warnings.
- [ ] I ran **all** tests locally using the **UA.slnx** solution against
at least .net **framework** and .net **10**, and all passed.
- [x] I fixed **all** failing and flaky tests in the CI pipelines and
**all** CodeQL warnings.
- [x] I have addressed **all** PR feedback received.

---------

Copilot-Session: afaa67c9-fc97-4185-a785-edd54a937d95
2026-09-05 09:25:49 +02:00
romanett 41db5aca60 Fluent: publish Configure-created nodes' references on foreign-manager nodes (Objects folder placement) (#4331)
# Description

A node created inside the fluent `Configure` hook (source-generated
`[NodeManager]` partial, or the hosting `AddNodeManager(uri, build)`
route) had no way to appear below the Objects folder — or below any node
owned by another node manager.
`AsyncCustomNodeManager.AddReverseReferencesAsync` mirrors inverse
references into the `externalReferences` dictionary **before** the
`Configure` partials run, and the fluent surface never sees the
dictionary, so a configure-created node with an inverse `Organizes`
reference to `ObjectsFolder` existed and simulated but never showed up
under Objects.

This implements the three coordinated pieces proposed in #4329, plus the
companion namespace gap:

**1. Idempotent mirroring pass** (independently worthwhile hardening)
- `AddExternalReference` in `AsyncCustomNodeManager` and
`CustomNodeManager2` now has if-missing semantics (linear scan of the
per-source list).
- `TypeTable.AddEncoding` no longer appends a duplicate encoding id;
re-registering the same encoding is a succeeding no-op.
(`AddRootNotifierAsync` and the node-side `AddReferenceIfMissing` branch
were already idempotent.)

**2. Re-run the pass after `Configure`**
- New protected
`FluentNodeManagerBase.CompleteConfigureAsync(externalReferences, ct)`
wraps `AddReverseReferencesAsync` so hand-written managers using
`CreateFluentBuilder` benefit too.
- The generator-emitted `CreateAddressSpaceAsync` and the hosting
`FluentNodeManager` invoke it once between the `Configure` callbacks and
`Seal()`. Timing is safe: the master distributes `externalReferences`
only after every manager's `CreateAddressSpaceAsync` returns. Side
benefit: inverse `HasNotifier` references on configure-created event
sources get root-notifier registration for free.
- The hosting `FluentNodeManager`'s hand-rolled `externalReferences`
workaround for its root folder is deleted — the root's inverse
`Organizes` reference now flows through the shared pass (mirrored
exactly once, covered by a test).

**3. Discoverable fluent sugar**
- `OrganizedBy(parentId)` / `UnderObjectsFolder()` on `INodeBuilder`
write the inverse `Organizes` reference; with piece 2, placement is just
"write the inverse reference".
- A parentless `CreateInstance<TState>` on `INodeManagerBuilder` takes a
constructor-style factory (`p => new BoilerState(p)`, keeping the
surface reflection-free and AOT-safe), materializes the subtree from the
type model via `NodeState.Create`, rebases all NodeIds through the
manager's `INodeIdFactory`
(`AssignInstanceNodeId`/`AssignInstanceChildNodeIds` — the same pair the
generated factories use, so declaration-id children cannot collide with
the type model), and registers via `AddPredefinedNodeSynchronously`. The
Boiler #2 shape becomes fully fluent:

```csharp
builder.CreateInstance(
        new QualifiedName("Boiler #2", NamespaceIndexes[1]),
        p => new BoilerState(p))
    .Configure(n => n.UnderObjectsFolder());
```

**Companion gap, same theme:** `[NodeManager]` grows
`AdditionalNamespaceUris`, flowing through attribute discovery → binding
→ generator so the generated constructor reports a second (instance)
namespace at construction and the generated factory advertises it in
`NamespacesUris` — today `SetNamespaces` after construction is not
enough because `MasterNodeManager` builds its namespace routing from
what the manager reported when it was built.

**Scope boundary** (as discussed in the issue): startup-time
configuration only; for nodes created after startup the correct
primitive remains `IMasterNodeManager.AddReferencesAsync`.

**Reviewer notes**
- The generated-code change was validated against the real pipeline: a
forced fresh compile of `Opc.Ua.Server.Tests` (whose CoverageNodeSet
managers are `[NodeManager]`-generated) emits `await
CompleteConfigureAsync(externalReferences, cancellationToken)` between
`Configure` and `Seal()` and compiles against the real base class.
- The distribution consumer (`AddReferencesAsync`) already used
`AddReferenceIfMissing`, so the whole chain is defense-in-depth
idempotent.
- 15 new tests: double-run idempotence, second-pass pickup of
late-registered nodes, the new reference sugar, root-instance creation
incl. child-id rebasing and reference remapping, hosting end-to-end
Objects-folder placement, emitted-sequence and `AdditionalNamespaceUris`
generator tests, and a full Roslyn-pipeline attribute test. Docs updated
in `docs/NodeManagers.md` (new "Creating nodes under other managers'
nodes" section, attribute docs, fluent-surface sections).
- Verified locally: all touched projects build with 0 warnings; full
`Opc.Ua.Server.Tests` (4,725 passed / 0 failed / 5 skipped, net9.0),
`TypeTableTests` (113), `Opc.Ua.SourceGeneration.Core.Tests` (41),
`Opc.Ua.SourceGeneration.Tests` (132), and the Quickstarts.Servers
sample all pass.

## Related Issues

- Fixes #4329
- Motivating case: OPCFoundation/UA-.NETStandard-Samples#756 /
OPCFoundation/UA-.NETStandard-Samples#795 (Workshop/Boiler migration)

## Checklist

- [x] I have signed the
[CLA](https://opcfoundation.org/license/cla/ContributorLicenseAgreementv1.0.pdf)
and read the
[CONTRIBUTING](https://github.com/OPCFoundation/UA-.NETStandard/blob/master/CONTRIBUTING.md)
doc.
- [x] I have added tests that prove my fix is effective or that my
feature works and increased code coverage.
- [x] I have added all necessary documentation.
- [x] I have verified that my changes do not introduce (new) build or
analyzer warnings.
- [ ] I ran **all** tests locally using the **UA.slnx** solution against
at least .net **framework** and .net **10**, and all passed.
- [ ] I fixed **all** failing and flaky tests in the CI pipelines and
**all** CodeQL warnings.
- [ ] I have addressed **all** PR feedback received.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

---------

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-08-29 10:38:56 +02:00
romanett d547747e22 Generate ReferenceNodeManager address space from a NodeSet2 model (#4220)
# Description

The CTT/compliance `ReferenceNodeManager` built its ~6,000 node address
space entirely in imperative C#. This PR migrates it to a
source-generated `[NodeManager]` partial driven by an exported NodeSet2
model (`ReferenceServer.NodeSet2.xml`), mirroring the
`MinimalBoilerServer` sample and completing the goal of issue #4204.

The address space is now materialized from the model by the source
generator. The large orchestration body was kept but converted from
create-based to **find-instead-of-create**: each `Create*` primitive now
looks up the model-materialized node via `FindPredefinedNode<T>` and
re-applies runtime values, DataAccess metadata, and write handlers,
rather than constructing nodes from scratch. This keeps the
deterministic value seeding and behavior wiring intact while the
structure comes from the model.

## Notable details for reviewers

- **Idempotent reference wiring.** The mesh references in the
`References` folder are already present in the model, so the historic
manual `AddReference` calls would throw on duplicates. Added a small
`AddReferenceIfMissing` helper so those calls are safe.
- **Non-string NodeIds.** The `NodeIds` folder assigns numeric / GUID /
opaque NodeIds. The model exports those nodes with their final ids, so
find-by-string-path no longer works; added `CreateVariableById(NodeId)`
to locate them by their real id.
- **Generator bug fix (worth a careful look).**
`ModelDesignExtensions.GetValueRankAsCode` reconstructed `ValueRank` as
`dimensions.Length + 1`, so a node with `ArrayDimensions="3,3"` was
emitted as `ValueRank = 3`. This affected **any** NodeSet2 with a fixed
multi-dimensional array (rank-3 matrices, `BadTypeMismatch` on
whole-matrix writes, wrong decoded dimensions). Corrected to
`dimensions.Length` and updated the unit tests that had codified the
off-by-one.

## Validation

- `ReferenceServerTest`: 44/44 on net10.0 and net48
- `Opc.Ua.SourceGeneration.Core.Tests`: pass on
net8.0/net9.0/net10.0/net48
- Integration on net10.0: ComplexTypes, Client, History, Sessions,
Subscriptions all pass
- Clean build, no new analyzer warnings

## Related Issues

- Fixes #4204

## Checklist

_Put an `x` in the boxes that apply. You can complete these step by step
after opening the PR._

- [ ] I have signed the
[CLA](https://opcfoundation.org/license/cla/ContributorLicenseAgreementv1.0.pdf)
and read the
[CONTRIBUTING](https://github.com/OPCFoundation/UA-.NETStandard/blob/master/CONTRIBUTING.md)
doc.
- [x] I have added tests that prove my fix is effective or that my
feature works and increased code coverage.
- [ ] I have added all necessary documentation.
- [x] I have verified that my changes do not introduce (new) build or
analyzer warnings.
- [x] I ran **all** tests locally using the **UA.slnx** solution against
at least .net **framework** and .net **10**, and all passed.
- [ ] I fixed **all** failing and flaky tests in the CI pipelines and
**all** CodeQL warnings.
- [ ] I have addressed **all** PR feedback received.

---------

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
2026-08-15 05:22:31 -07:00
Marc Schier e73e71184d [WotCon] Add OPC UA WoT Connectivity 1.1 with the Types, source generation, Server and xRegistry work it builds on (#4128)
## Summary

Adds OPC UA WoT Connectivity 1.1 to the stack, together with the Types,
source generation, Server and xRegistry work it is built on. This branch
is the merge point for the fourteen-PR stack that replaced integration
PR #4093; every constituent PR was reviewed and approved separately and
is listed below.

414 files changed, +108,936 / -3,199. Roughly 46k added lines of product
code, 57k of tests, plus samples, tools and documentation.

## Types

- Complete `ExtensionObject` raw-body decoding for binary, XML and JSON
bodies by resolving the concrete type through the message context's
encodeable factory, and simplify the `Variant` structure helpers by
delegating to it (#4128).
- Add `IAtomicFileReplace` as an optional `IFileSystem` capability so
existing external implementations keep working, with atomic publish for
`LocalFileSystem` via `File.Replace`/`File.Move` and for
`VirtualFileSystem` by re-keying the in-memory entry (#4128).
- Add lossless conversion between WoT documents and NodeSet2
(`Opc.Ua.Wot.WotNodeSetConverter`). A byte-exact `uav:nodeSet` envelope
is preserved when requested, the structured `uav:nodes` projection is
used when the readable vocabulary is incomplete, and NodeSet2 is
otherwise synthesized from readable WoT terms. Unmapped JSON members
survive a round trip as pointer-addressed residue (#4131).

## Source generation

- Improve the NodeSet to ModelDesign conversion and the generated node
state (#4132).
- Generate OPC UA models directly from WoT Thing Description files
(#4134).

## Server

- Add live NodeManager shadow and immediate reload. A reload
materializes a new generation beside the active one and switches
atomically; the superseded generation is retired gracefully so existing
MonitoredItems keep being served until they drain, or immediately when
the caller asks for it. Includes the request admission and drain
machinery that lets an orderly shutdown wait for admitted requests
instead of tearing down underneath them (#4147).
- Make subscription transfer between sessions transactional, so a failed
transfer leaves neither session holding a partially moved subscription
(#4150).

## xRegistry

- Allow clients to use explicit registry roots rather than assuming a
well-known location (#4130).

## WoT Connectivity

- Add the WoT Connectivity 1.1 information model: a registry-first
revision layered on the abstract xRegistry base model, incorporating the
complete published OPC 10100-1 v1.02 surface as deprecated nodes in the
same namespace so existing 1.02 clients keep working (#4139).
- Add the protocol binding abstractions and planners that compile WoT
forms into executable plans (#4140).
- Add the HTTP, Modbus, OPC UA and MQTT binding executors (#4144).
- Add the registry and its stores, including document versioning,
validation, dependency resolution and refresh (#4146).
- Add the registry client (#4142).
- Materialize WoT Thing Descriptions into the server address space,
deriving types from Thing Models and instances from Thing Descriptions
(#4154).
- Restore the WoT asset registry bridge so the deprecated 1.02 asset
surface is backed by the registry (#4171).
- Add the WoT Connectivity samples and complete the documentation
(#4156), and restore the remaining coverage and docs (#4172).

## New projects

`src/Opc.Ua.WotCon.Bindings`, `src/Opc.Ua.WotCon.Bindings.Mqtt`,
`tests/Opc.Ua.WotCon.Bindings.Tests`,
`tests/Opc.Ua.WotCon.Samples.Tests`, and the `samples/WotCon`
AggregationServer, AggregationClient and FlatTagServer samples.

## Constituent pull requests

Merged into this branch top-down, each independently approved:

| PR | Title |
| --- | --- |
| #4128 | [Types] Complete ExtensionObject decoding and add an atomic
file replace capability |
| #4131 | [Types] Add lossless conversion between WoT documents and
NodeSet2 |
| #4132 | [SourceGeneration] Improve NodeSet to ModelDesign conversion
and generated node state |
| #4134 | [SourceGeneration] Generate OPC UA models from WoT Thing
Description files |
| #4147 | [Server] Add live NodeManager shadow and immediate reload |
| #4150 | [Server] Make subscription transfer between sessions
transactional |
| #4130 | [XRegistry] Allow clients to use explicit registry roots |
| #4139 | [WotCon] Add the WoT Connectivity 1.1 information model |
| #4140 | [WotCon] Add the WoT protocol binding abstractions and
planners |
| #4144 | [WotCon] Add the HTTP, Modbus, OPC UA and MQTT binding
executors |
| #4146 | [WotCon] Add the WoT Connectivity registry and its stores |
| #4142 | [WotCon] Add the WoT Connectivity registry client |
| #4154 | [WotCon] Materialize WoT Thing Descriptions into the server
address space |
| #4156 | [WotCon] Add the WoT Connectivity samples and complete the
documentation |
| #4171 | Restore WoT asset registry bridge |
| #4172 | Restore WoT coverage and docs |

Supersedes #4093.

## Follow-up

The WoT Connectivity and WoT Binding drafts have moved to 1.1-draft2
since this work was authored. Aligning with that revision - the removed
group vocabulary, the new projection/View construct, the remaining model
vocabulary terms and the two new portable-identity validation rules - is
tracked separately and will follow in its own pull request.

## Validation

Built for every target framework with zero warnings and zero errors, and
validated at the tip of the stack with `Opc.Ua.WotCon.Tests` at 999
passed / 0 failed and `Opc.Ua.Server.Tests` at 4024 passed / 0 failed.

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 9e6a5abf-3299-4cd1-9855-010fedbf0ad8
2026-08-05 10:14:15 +02:00
Marc Schier 7cec2d614d Move repository files to the consolidated layout 2026-07-16 06:25:54 +02:00