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romanett 9b034f8291 Enable nullable reference types centrally; migrate all unset and annotations-only projects (#4700) 
# Description

Nullable reference types are now enabled once, in `common.props`, and
every project in the repository builds warning-clean with them.

**Configuration**
- `<Nullable>enable</Nullable>` lives in `common.props`. All per-project
`<Nullable>` settings are removed: 178 project files (enable,
annotations, and the `disable` in the three Aot test projects).
- 419 per-file `#nullable enable`/`restore` directives and the 4
`#nullable disable` directives are removed.
- Kept on purpose:
- The 5 `<auto-generated>` schema files (`UANodeSet.cs`, `UA Type
Dictionary.cs`, `OPCBinarySchema.cs`, `SecuredApplication.cs`,
`PInvokeHelper.cs`) keep `#nullable enable`. The compiler ignores the
project setting in generated code, so the directive is required there.
- `tests/Opc.Ua.Interop.LegacyPeer` keeps `disable`. It builds against
the 1.5.378 packages and does not import the repository props.
- `docs/DeveloperGuide.md` and `.github/copilot-instructions.md` now
describe the central setting.

**Migration** (the 43 unset and 13 annotations-only projects, roughly
10k diagnostics)
- **Production code: annotated at the declarations.** Covers
`tools/Opc.Ua.SourceGeneration.Core`, `src/Opc.Ua.Lds.Server` and the
LDS sample.
- Members, parameters and returns are nullable where null actually
flows.
- Null-check helpers carry `[NotNullWhen]` (`IsNull`, `IsValidXmlName`,
`IsMethodTypeDesign`).
- `CoreUtils.Format`, `Utils.Format`, `ITemplateWriter.WriteLine` take
`params object?[]`. `Template.AddReplacement` takes `string?` (rendering
already skips null replacements).
- `IRegisteredServerStore.RegisterAsync` returns
`Task<RegistrationEntry?>`: it returns null when a registration is
removed.
- Dereferences backed by an invariant (for example, the validated model)
use `!`, so runtime behaviour is unchanged.
- **Behavioural changes in production code** (small, deliberate):
- `NodeSetToModelDesign` throws `InvalidOperationException` when the
file is not a NodeSet. Before, it threw a NullReferenceException on the
next line.
- `ModelDesignValidator` starts its lookup tables empty instead of null.
A redundant `if (m_nodes == null) return;` guard is gone.
- **Test code: minimal annotations.**
  - `?` on values that can be null, `!` where the test asserts non-null.
  - `= null!` for fixture members assigned in SetUp.
- `TryGetStructure<T>(out T? x)` where the inferred `T?` broke the
`IEncodeable` constraint.
- A few redundant `== null` checks on structs (`NodeId`, `ArrayOf<T>`)
folded into the adjacent `IsNull`/`Count` checks.

**Notes for reviewers**
- The diff is large (~1,500 files) but almost entirely mechanical: `?`,
`!` and directive removal. The non-annotation changes are listed above.
- Known follow-up, not done here:
`IModelDesign.Namespaces/TargetNamespace/NamespaceUris` stay
non-nullable even though the validator returns null before it loads a
dictionary. Making them nullable would ripple through every generator
call site.

## Related Issues

- Fixes #4439

## 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.
- [ ] 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.

The "no new warnings" box covers net10.0 and net48: full non-incremental
builds of `UA.slnx`, `tools/SourceGeneration.slnx`,
`tools/MigrationAnalyzer.slnx` and the Aot test projects finished with 0
warnings and 0 errors under the repository's warnings-as-errors
settings. net9.0 and net8.0 also had no nullable diagnostics, but they
were not rebuilt after the final fixes. Tests have not been run locally
yet.

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

---------

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
 2026-10-08 08:48:13 +02:00
Klaus Landsdorf 01d6b5d26c Machinery: the OPC 40001 companion SDK with Jobs, Result Transfer, Process Values and Energy (#4578) 
> Tracking issue #4576. #4577 is merged, so this branch is rebased onto
> `master` and contains only the Machinery commits.

## Summary

Second of four stacked PRs. Adds the OPC UA for Machinery series as
model
packages plus a server and a client SDK, following the companion pattern
of
DI and Robotics, and the two models it depends on that the repository
does
not carry yet.

| Package | Content |
|---|---|
| `Opc.Ua.IA` | OPC 10000-200 IA 1.01.4, **moved out of
`Opc.Ua.Robotics`** (see below) |
| `Opc.Ua.ECM` | OPC 34100 Energy Consumption Management 1.0.1 |
| `Opc.Ua.PADIM` | OPC 30081 PA-DIM 1.02.0 with the IRDI dictionary |
| `Opc.Ua.Machinery` | OPC 40001-1 Basic Building Blocks 1.04.1 |
| `Opc.Ua.Machinery.ProcessValues` | OPC 40001-2 Process Values 1.00.0 |
| `Opc.Ua.Machinery.Jobs` | OPC 40001-3 Job Management 1.0.1 |
| `Opc.Ua.Machinery.Energy` | OPC 40001-4 Energy 1.00 |
| `Opc.Ua.Machinery.Result` | OPC 40001-101 Result Transfer 1.01.0 |
| `Opc.Ua.Machinery.Server` | `AddMachinery()` /
`ConfigureMachinery(...)`, fluent machine builder, server-driven state
machines, process values, job management over the shared ISA-95 V2
binder, energy, result management incl. `GenerateFileForRead` |
| `Opc.Ua.Machinery.Client` | machine discovery, identification, state
observation, process values, job and result access |

OPC 40001-101 `ResultTransferType` redeclares `GenerateFileForRead` with
its
own arguments; the generator fix for such overrides, merged with #4577,
is
what makes it appear on the `ResultTransfer` instances.

All NodeSets are byte-identical to `UA-Nodeset/latest`. Each model
carries a
pinned `Model/*.NodeIds.csv` the generator validates, next to the
unmodified
upstream table; `tools/nodesets/derive-identifier-table.py` derives the
former from the latter.

## Changes to existing code

- **IA moves out of Robotics.** Machinery needs IA as well (OPC 40001-1
types
`Stacklight` with `BasicStacklightType`), and two assemblies generating
the
same model under the same prefix collide at any consumer referencing
both.
The NodeSet moves verbatim, so no generated type changes; the prefix
stays
`Opc.Ua.IA`. Source-compatible, but IA types now live in `Opc.Ua.IA.dll`
rather than `Opc.Ua.Robotics.dll` — binary-breaking for consumers of the
  Robotics package.
- **`samples/OpenUsd/GeneratorServer`** drops its hand-reduced Machinery
  NodeSet copy and the script that produced it (a workaround for the
generator defect fixed by #4577) and references `Opc.Ua.Machinery`
instead.
- `README.md` and `docs/README.md` list the new models; the README also
  corrects the Industrial Automation entry (Part 200, not OPC 40001-1).

## Review follow-ups

Separate commits after the docs/samples commit, so the reviewed state
stays
comparable. Each fix comes with a test that fails without it.

- Copilot review: a transition is committed only while the state machine
is
still in its source state; optional Jobs/Result namespaces the server
does
not load are reported as absent, as documented; resources of registered
machines (result transfer, job-management change pumps) are released
with
  the node manager (`DisposeMachineryResourcesAsync` for a custom DI
  manager); `NodeId`/`LocalizedText` use their null sentinels instead of
  `Nullable<T>`.
- Own review with the rubric in `.github/copilot-instructions.md`: a
failed
browse call propagates from the client instead of reading as "no
children";
  the predefined result metadata compares `CreationTime` against the
  `DateTimeUtc` sentinels (the `DateTime` conversion shifted
  `DateTime.MaxValue` by the host's UTC offset); process values below
`Monitoring` are found; a second metering point named `Main` is
rejected;
  the zero-point event is reported when the handler throws; smaller
  state-sharing and documentation corrections.

## Testing

- `tests/Opc.Ua.Machinery.Tests`: 162 tests on net8 and net10 and with
the
netstandard2.1 libraries; the integration tests connect a real client
session over `opc.tcp` to a hosted
  server.
- With IA extracted: Robotics 636, OpenUsd 921, DI 433 and
SourceGeneration
  263 tests pass.
- `UA.slnx` builds for net472, net48, netstandard2.0/2.1 and net8/9/10
with
  SDK 10.0.401 and no warnings.
- Changed-line coverage of this layer (`check-coverage.ps1`): 91.68 %
(6059 of 6609 changed lines, against `master`).
- Fork CI, full PR matrix incl. macOS, on the current master: green, all
184
jobs ([run
36582685653](https://github.com/biancode/UA-.NETStandard/actions/runs/36582685653)).
CodeQL: green ([run
36582689589](https://github.com/biancode/UA-.NETStandard/actions/runs/36582689589)).
- Beyond the in-repo tests the implementation has been validated end to
end
  against a separate, non-public OPC UA client and server.

## Reviewing

Commits are ordered so each builds: IA extraction → identifier-table
tool →
ECM/PA-DIM → Machinery models → server → client → tests → docs/samples →
GeneratorServer sample → review follow-ups. The model commits are large
only because of the
NodeSets and identifier tables; the hand-written code starts at the
server
commit.

---------

Co-authored-by: Marc Schier <marcschier@users.noreply.github.com>
 2026-09-29 19:59:34 +02:00
Marc Schier 06ae192084 Fix CI failures tracked by #4299 (#4308) 
## Summary
- stabilize the History, authentication lockout, Robotics, redundancy,
and DI tests reported in #4301-#4305
- fix the closed-transport buffered-write completion deadlock that hung
`ConnectMultipleSessionsAsync`
- add macOS crash diagnostics for #4306 and retain evidence for
root-cause analysis
- run macOS tests and NativeAOT in GitHub Actions pull requests, using
supported Intel and ARM64 runners, while keeping every Azure macOS
definition disabled by default
- move all remaining source-level `InternalsVisibleTo` declarations into
project files so signed OpenUSD builds receive the repository public key

## Local validation
- MCP PubSub: 29 passed
- History focused tests: 3 passed
- Sessions lockout: 3 passed
- Sessions multiple-session regression: 3 passed
- deterministic binary client channel tests: 22 passed
- Robotics runtime: 34 passed
- Redundancy focused tests: 4 passed
- OpenUSD net10.0: 914 passed
- affected OpenUSD projects build on net10.0 and net48

Refs #4299, #4300, #4306

Fixes #4301
Fixes #4302
Fixes #4303
Fixes #4304
Fixes #4305

---------

Copilot-Session: 7cb486de-8b4c-43c5-a900-e7d2e0ad04a8
 2026-08-22 19:30:19 +00:00
Copilot d525bc3f28 Bound reconnect cleanup and organize samples by domain (#4276) 
# Description

This PR fixes bounded ManagedSession reconnect cleanup and reorganizes
the sample applications into domain-focused folders.

## Reconnect cleanup

- Bounds reconnect integration cleanup with independent 30-second close
and dispose limits.
- Sends `CloseSession` through the awaited transport request path during
`Session.DisposeAsync`.
- Preserves explicit `Session.CloseAsync` behavior that waits for or
cancels outstanding publish requests.
- Covers the disposal request path with a regression test.

## Sample organization

- `samples/OpenUsd`: `GeneratorServer`, `SiteCompositionServer`
- `samples/Redundancy`: `RedundantClient`, `RedundantServer`,
`RedundantPubSub`
- `samples/Isa95`: `MinimalIsa95Server`
- `samples/MinimalApi`: `MinimalBoilerServer`, `MinimalCalcServer`,
`MinimalClient`
- `samples/DI`: `PumpDeviceIntegrationServer`
- `samples/Lds`: `ConsoleLdsServer`
- `samples/Reference`: `ConsoleReferenceClient`,
`ConsoleReferenceServer`
- `samples/PubSub`: `ConsoleReferencePubSubClient`

`UA.slnx` now exposes the same requested domain groups. Project
references, tests, runtime sample probes, CI workflows, Dockerfiles,
Compose files, helper scripts, and documentation were updated to the new
paths. `samples/Robotics/MinimalRobotServer` remains under `Robotics`.

## Validation

- `dotnet build UA.slnx`
- 3 Redundancy short-haul sample tests
- 70 DI sample tests
- 914 OpenUSD tests
- 1 WotCon model-materialization test
- 137 AOT tests
- `docker compose config` for all 6 moved Redundancy Compose files

## Related Issues

- Fixes #4273

## 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.
- [x] I built the complete `UA.slnx` solution locally.
- [ ] I ran all tests locally against at least .NET Framework and .NET
10.
- [ ] I fixed all failing and flaky tests in the CI pipelines and all
CodeQL warnings.
- [x] I have addressed all PR feedback received.

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: marcschier <11168470+marcschier@users.noreply.github.com>
Co-authored-by: Marc Schier <mschier@microsoft.com>
Co-authored-by: Marc Schier <marcschier@users.noreply.github.com>
Copilot-Session: a2c2838f-74ae-4997-a1d4-50574d9e0636
 2026-08-21 04:35:47 +00:00