5 Commits

Author SHA1 Message Date
Marc Schier 4756e7c245 DI (OPC 10000-100) with samples (Pump, SW Update), fluent API gap closures and model dependency implementation (#3808)
This PR implements the **OPC UA Device Integration (DI, OPC 10000-100)**
companion-spec library trio (`Opc.Ua.Di` / `Opc.Ua.Di.Server` /
`Opc.Ua.Di.Client`) plus a worked example
(`Applications/MinimalPumpServer`) demonstrating the OPC 40223 Pumps
companion specification end-to-end with full simulation. It also closes
11 fluent-API gaps in `Opc.Ua.Server.Fluent`, three source-generator
bugs, integrates the DI layer into the unified `services.AddOpcUa()`
Microsoft.Extensions DI hosting pattern, and adds 250+ new tests.

**Worked example — `Applications/MinimalPumpServer/`**
- AOT-compatible console host using `Host.CreateApplicationBuilder` +
`AddOpcUa()`.
- `PumpNodeManager` inherits from `DiNodeManager`; multi-namespace (DI +
Machinery + Pumps) via runtime NodeSet2 loading and
`ModelLoaderBuilder`.
- Demonstrates declarative second-pump creation via
`.ConfigureDevicesFor<PumpNodeManager>(...)` and software-package
seeding from the same configurator.
- Full simulation: pressure, temperatures, power, flow, efficiency,
level, cavitation/overheat fault injection, alarm setup, NAMUR-style
supervision.

**Documentation**
- `Docs/Opc.Ua.Di/` — README, DeviceBuilder, Hosting, LockService,
SoftwareUpdate, ClientHelpers (6 new developer guides).
- `Docs/Opc.Ua.Di/ComplianceMatrix.md` — every DI declaration mapped to
In-v1 / Generated / Deferred / Excluded.
- `Docs/CompanionSpecLibraries.md` — packaging guide for new
companion-spec libraries.
- `Docs/FluentApiGaps.md` — historical record of G1–G11.
- `Docs/SourceGeneratedNodeManagers.md` updated for richer node
managers.
- `Docs/plans/StateMachineBuilder.md` — deferred state-machine builder
design.
2026-06-04 05:57:57 +02:00
Marc Schier 01d7162313 Part 9 Alarms & Conditions: complete server + client implementation (#3805)
Complete implementation of **OPC UA Part 9 ΓÇö Alarms & Conditions** for
both server and client, **OPC UA Part 16 ΓÇö State Machines** (generic
extensible client + server API), and the supporting infrastructure
(source-generated event records, source-generated ObjectType proxies,
`IAsyncEnumerable` streaming subscriptions, address-space model change
tracking, per-node `INodeCache` invalidation, unified DI integration).

### Server-side (Part 9 complete)

- **`AlarmConditionState`** ΓÇö every Part 9 method wired automatically
in `OnAfterCreate`: `Silence`, `Suppress`/`Suppress2`,
`Unsuppress`/`Unsuppress2`, `RemoveFromService`/`RemoveFromService2`,
`PlaceInService`/`PlaceInService2`, `Reset`/`Reset2`,
`GetGroupMemberships`. Each method generates the spec-mandated audit
event and supports an optional veto-delegate hook.
- **Latched alarms** ΓÇö `ActiveState` reflects real process state;
`LatchedState` persists until explicit `Reset` (with full precondition
validation).
- **Re-alarming** ΓÇö
`ProcessReAlarm`/`ResetReAlarmRepeatCount`/`IsReAlarmEnabled` helpers
(opt-in, no hidden timer).
- **Audible alarms** ΓÇö `UpdateAudibleState` for
`AudibleEnabled`/`AudibleSound`/`SilenceState` lifecycle.
- **Suppression + groups** ΓÇö `AlarmGroup`, `AlarmSuppressionEngine`
(with first-in-group), `AlarmRateTracker` (for `AlarmMetricsType`).
- **Spec-compliance fixes** ΓÇö `SuppressedOrShelved` now includes
`OutOfServiceState`; `GetRetainState` includes `LatchedState`;
`EffectiveDisplayName` composition includes `OutOfServiceState` +
`LatchedState`.

### Client-side Part 9 API

- **`AlarmClient`** ΓÇö typed Part 9 operations. Each method delegates
to the matching source-generated `*TypeClient` proxy
(`ConditionTypeClient`, `AcknowledgeableConditionTypeClient`,
`AlarmConditionTypeClient`, `DialogConditionTypeClient`,
`ShelvedStateMachineTypeClient`) ΓÇö one source of truth for every
method NodeId.
- **Interface hierarchy** — `IConditionOperations` →
`IAcknowledgeableConditionOperations` → `IAlarmOperations` +
`IDialogConditionOperations`.
- **Source-generated event records** ΓÇö new `EventRecordGenerator`
(alongside `ObjectTypeProxyGenerator`) emits `{Type}TypeRecord` per OPC
UA event type: `ConditionTypeRecord` →
`AcknowledgeableConditionTypeRecord` → `AlarmConditionTypeRecord` →
`LimitAlarmTypeRecord`/`ExclusiveLimitAlarmTypeRecord`/… all the way
to vendor subtypes. **Vendor alarm types get records automatically.**
- **`AlarmEventDecoder`** ΓÇö decodes `EventNotification.Fields` into
the most-specific generated record.
- **`AlarmEventFilterBuilder`** ΓÇö fluent builder for Part 9
`EventFilter`s.
- **`ISession.GetAlarmClient(telemetry)`** convenience extension.

### Part 16 state machines (generic, extensible)

- **Client**: extension methods on the source-generated
`StateMachineTypeClient` / `FiniteStateMachineTypeClient` ΓÇö
`GetCurrentStateAsync`, `ObserveFiniteTransitionsAsync`
(`IAsyncEnumerable<FiniteStateSnapshot>`), `WaitForStateAsync`,
`GetAvailableStatesAsync` / `GetAvailableTransitionsAsync`. **Vendor
proxies inherit the API automatically** through the generated
inheritance chain.
- **Server**: `StateMachineBuilder` (fluent: `AddState` /
`AddTransition` / `OnCause` / validation) +
`FluentFiniteStateMachineState` ΓÇö declare a Part 16 state machine
without subclassing the abstract base.
- **Alarms alignment**: `AlarmClient.GetShelvingStateAsync` /
`ObserveShelvingTransitionsAsync` surface the API for every alarm's
`ShelvingState` child.

### IAsyncEnumerable streaming subscription

- **`IStreamingSubscription`** with
`SubscribeDataChangesAsync`/`SubscribeEventsAsync` returning
`IAsyncEnumerable<T>` (Channel-backed).
- **`ManagedSession.DefaultStreaming`** ΓÇö lazy shared subscription;
disposed with the session.
- **Helpers** ΓÇö `TakeUntilAsync`, `WithTimeoutAsync`, `TakeAsync`,
`BufferedAsync` for state-machine waits and bounded observation windows.
- **`AlarmStreamExtensions`** ΓÇö
`SubscribeAlarmsAsync`/`SubscribeConditionsAsync`/`SubscribeDialogsAsync`
returning the source-generated record types.

### Address-space model change tracking

- **Server**: `RaiseGeneralModelChangeEvent` on both `CustomNodeManager`
and `AsyncCustomNodeManager`; `ModelChangeAggregator` (in
`Opc.Ua.Server.NodeManager`, used by every node manager) batches changes
per service call; **auto-emit** from `CreateNode`/`DeleteNode` (opt-out
via `ModelChangeEmissionEnabled = false`).
- **Client**: `IModelChangeTracker` subscribes to
`BaseModelChangeEventType` via the streaming subscription, decodes
`ModelChangeStructureDataType` payloads, invalidates the `INodeCache`
per-node.
- **`INodeCache.InvalidateNode(NodeId)`** ΓÇö new interface member (true
per-node eviction in `NodeCache`).
- **`ManagedSession.EnableModelChangeTrackingAsync()`** +
`ManagedSessionOptions.ModelChangeTracking` +
`ManagedSessionBuilder.WithModelChangeTracking()` fluent method.

### Dependency Injection integration

- **`services.AddOpcUa().AddClient(...).AddAlarms()`** ΓÇö registers
`AlarmClientFactory` so DI-hosted apps can resolve a Part 9 client per
session without `new`-ing one manually.
- Cross-link added to the unified DI surface (`AddServer` / `AddClient`
/ `AddComplexTypes` / `AddGdsServer` / `AddLdsServer` /
`AddWotConServer`).

### Quickstart server modernization

- `Quickstarts.Servers/Alarms/AlarmNodeManager.cs` ported to
`AsyncCustomNodeManager` and demonstrates the new `AlarmGroup` +
`AlarmSuppressionEngine` end-to-end via a writable `MaintenanceMode`
boolean that suppresses every member alarm.

### Documentation

- New: `Docs/AlarmsAndConditions.md`, `Docs/StreamingSubscription.md`,
`Docs/ModelChangeTracking.md`, `Docs/StateMachines.md` ΓÇö full
developer guides.
- Updated: `Docs/DependencyInjection.md` (`AddAlarms()` row + section),
`Docs/README.md` index, `Docs/MigrationGuide.md` (Part 9 / Part 16 /
model change tracking sections covering behavior changes + breaking API
surface).
- Sample: `Applications/ConsoleReferenceClient/AlarmClientSample.cs`.
2026-05-29 23:24:53 +02:00
Marc Schier dc441a8b95 Source generator option to override instance modelling rules with type definition modelling rules (default opt in for stack) (#3799)
## Proposed changes

When the source generator creates code for "instance" definitions (e.g.,
the `Server` object which has `ServerType` as its type definition), it
currently uses the modelling rules specified on the **instance's
children**, which may differ from the **type definition's children**.
For example:

- `ServerType` defines `UrisVersion` as `ModellingRule="Optional"`
- `Server` instance overrides it to `ModellingRule="Mandatory"`

This PR introduces two layers of modelling rule enforcement:

### 1. OPC UA promotion semantics (always active)

Regardless of any configuration, the generator now enforces OPC UA
modelling rule promotion semantics. Instances may only **promote** the
type definition's rule:

| Type Definition Rule | Allowed Instance Overrides |
|---|---|
| `Optional` | `Mandatory` |
| `OptionalPlaceholder` | `Mandatory`, `MandatoryPlaceholder` |
| `MandatoryPlaceholder` | `Mandatory` |

Any other instance override (demotion) is silently rejected and the type
definition's rule is used instead. This applies to both structural code
generation decisions and the emitted runtime `ModellingRuleId`.

### 2. `UseTypeDefinitionModellingRules` option (opt-in)

When enabled, the generator uses the type definition's modelling rules
**unconditionally** — instance overrides are ignored entirely (even
valid promotions). This is useful for stack generation where the type
definition's semantics should be preserved exactly.

- **Enabled by default** for stack generation
(`Opc.Ua.SourceGeneration.Stack`)
- **Disabled by default** for the Roslyn source generator
(`Opc.Ua.SourceGeneration`), configurable via
`ModelSourceGeneratorUseTypeDefinitionModellingRules` MSBuild property

### Key design decisions

- A `TypeDefinitionModellingRule` property on `HierarchyNode` captures
the type definition's original rule before instance overrides, updated
through base→derived type-hierarchy merges but frozen once explicit
instance overrides appear
- A `GetEffectiveModellingRule()` helper with `IsValidPromotion()`
centralizes the rule resolution logic across all structural check sites
and runtime `ModellingRuleId` emission
- Factory method emission (`LoadTemplate_ReplaceChild`) uses the
instance's own modelling rule for mandatory/optional list classification
so children the instance marks Mandatory are always created

## Related Issues

- N/A

### Types of changes

- [ ] Bugfix (non-breaking change which fixes an issue)
- [x] Enhancement (non-breaking change which adds functionality)
- [ ] Test enhancement (non-breaking change to increase test coverage)
- [ ] Breaking change (fix or feature that would cause existing
functionality to not work as expected, requires version increase of
Nuget packages)
- [ ] Documentation Update (if none of the other choices apply)

## Checklist

- [x] I have read the
[CONTRIBUTING](https://github.com/OPCFoundation/UA-.NETStandard/blob/master/CONTRIBUTING.md)
doc.
- [x] I have signed the
[CLA](https://opcfoundation.org/license/cla/ContributorLicenseAgreementv1.0.pdf).
- [x] I ran tests locally with my changes, all passed.
- [ ] I fixed all failing tests in the CI pipelines.
- [ ] I fixed all introduced issues with CodeQL and LGTM.
- [ ] I have added tests that prove my fix is effective or that my
feature works and increased code coverage.
- [x] I have added necessary documentation (if appropriate).
- [ ] Any dependent changes have been merged and published in downstream
modules.

## Further comments

### Files changed:

| File | Change |
|------|--------|
| `Schema/ModelDesign.cs` | Added `TypeDefinitionModellingRule` property
to `HierarchyNode` |
| `Schema/ModelDesignValidator.cs` | Populates
`TypeDefinitionModellingRule` during hierarchy merge; updates through
base→derived type merges, freezes on instance overrides |
| `GeneratorOptions.cs` | Added `UseTypeDefinitionModellingRules` option
with full XML doc |
| `NodeStateGenerator.cs` | `GetEffectiveModellingRule()` +
`IsValidPromotion()` helpers; updated structural check sites and runtime
`ModellingRuleId` emission; `NodeToGenerate` extended with
`TypeDefinitionModellingRule` |
| `StackGeneration.cs` | Enabled option for stack generation |
| `ModelCompilationOptions.cs` | Added option + MSBuild property read |
| `ModelCompilation.cs` | Wired option through to `GeneratorOptions` |
| `OPCFoundation.Opc.Ua.SourceGeneration.props` | Registered MSBuild
`CompilerVisibleProperty` |
| `readme.md` | Documented new MSBuild property with promotion semantics
|
2026-05-24 21:00:10 +02:00
Marc Schier 09e44453a4 Generate type safe (method) proxies for ObjectTypes inside models (#3685)
Add interop test agent

The new stack-pass ObjectMethodProxyGenerator emits proxies that derive
from Opc.Ua.ObjectTypeClient and reference Session.MessageContext.NamespaceUris.
Neither type exists in the in-memory test compilation, which only references
Opc.Ua.Types.dll. Moving ObjectTypeClient to Opc.Ua.Types would cascade ISessionClient,
IClientBase, ITransportChannel and the generated service interfaces with it, so the
type stays in Opc.Ua.Core and we add a minimal stub to OpcUaCoreStubs instead.

Wire Microsoft.Extensions.Options 10.0.5 + DependencyInjection.Abstractions 10.0.5 into Directory.Packages.props and the Gds.Client.Common project to enable upcoming options-driven configuration work.

 Modernize Opc.Ua.Gds.Client.Common (DI, options, interfaces, async dispose)
2026-04-22 05:59:06 +02:00
Marc Schier f66ceffd75 Immutable built in types and code generation (#3534)
Generate stack and application code using source generators
Change built in types to readonly structs
  Update localized text implementation to use JSON text serializer
  Status code with symbolic names
  Immutable node ids
  No boxing for all built in types <= 8 bytes in Variant.
Split user identity token and token handling via token handler
Add migration guide for breaking changes
2026-02-12 16:27:07 +01:00