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feat: add canonical data model pattern#307

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JerrettDavis merged 1 commit into
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feat/canonical-data-model-pattern
May 22, 2026
Merged

feat: add canonical data model pattern#307
JerrettDavis merged 1 commit into
mainfrom
feat/canonical-data-model-pattern

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Closes #303.

Adds Canonical Data Model runtime, source generator, TinyBDD coverage, importable order example, docs, and production-readiness catalog entries.

Local focused validation passed for core/generator builds and runtime/generator tests across net8/net9/net10. Local full examples tests still hit the known analyzer/compiler mismatch; hosted CI validates the examples graph.

Copilot AI review requested due to automatic review settings May 22, 2026 05:43
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⚠️ Deprecation Warning: The deny-licenses option is deprecated for possible removal in the next major release. For more information, see issue 997.

Dependency Review

✅ No vulnerabilities or license issues or OpenSSF Scorecard issues found.

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Test Results

764 tests   764 ✅  30s ⏱️
  1 suites    0 💤
  1 files      0 ❌

Results for commit 5001de8.

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Pull request overview

Introduces the Canonical Data Model enterprise integration pattern to PatternKit, including a fluent runtime API, a Roslyn source generator for factory creation, an importable DI example, and documentation/catalog entries to mark the pattern as production-ready.

Changes:

  • Added CanonicalDataModel<TCanonical> runtime and CanonicalDataModelResult<TCanonical> result type for normalizing multiple source contracts into a canonical model.
  • Added GenerateCanonicalDataModel / CanonicalDataModelMapper attributes and an incremental generator that emits a CanonicalDataModel<TCanonical> factory method.
  • Added TinyBDD coverage (runtime, generator, example), wired the example into DI/catalogs, and updated docs + production-readiness catalogs.

Reviewed changes

Copilot reviewed 22 out of 22 changed files in this pull request and generated 4 comments.

Show a summary per file
File Description
test/PatternKit.Tests/EnterpriseIntegration/CanonicalDataModel/CanonicalDataModelTests.cs Adds runtime behavior tests for normalization, failure reporting, and configuration validation.
test/PatternKit.Generators.Tests/CanonicalDataModelGeneratorTests.cs Adds generator tests for source emission and diagnostics (PKCDM001-003).
test/PatternKit.Generators.Tests/AbstractionsAttributeCoverageTests.cs Extends attribute coverage suite to include canonical data model attributes.
test/PatternKit.Examples.Tests/ProductionReadiness/PatternKitPatternCatalogTests.cs Updates production-readiness catalog expectations to include the new pattern and count.
test/PatternKit.Examples.Tests/CanonicalDataModelDemo/OrderCanonicalDataModelDemoTests.cs Adds example tests for fluent vs generated paths and DI importability.
src/PatternKit.Generators/CanonicalDataModel/CanonicalDataModelGenerator.cs Implements incremental generator that emits a canonical data model factory from a mapper method.
src/PatternKit.Generators/AnalyzerReleases.Unshipped.md Registers new generator diagnostics (PKCDM001-003).
src/PatternKit.Generators.Abstractions/EnterpriseIntegration/CanonicalDataModelAttributes.cs Adds generator attribute APIs for canonical data model generation.
src/PatternKit.Examples/ProductionReadiness/PatternKitPatternCatalog.cs Adds canonical data model entry to the production-readiness pattern catalog.
src/PatternKit.Examples/ProductionReadiness/PatternKitExampleCatalog.cs Adds the “Order Canonical Data Model” example descriptor to the example catalog.
src/PatternKit.Examples/DependencyInjection/PatternKitExampleServiceCollectionExtensions.cs Wires the canonical data model demo into AddPatternKitExamples() and registers the aggregate example type.
src/PatternKit.Examples/CanonicalDataModelDemo/OrderCanonicalDataModelDemo.cs Adds the canonical order demo (fluent + generated) and IServiceCollection import extension.
src/PatternKit.Core/EnterpriseIntegration/CanonicalDataModel/CanonicalDataModel.cs Adds the canonical data model runtime and builder-based adapter registration.
docs/patterns/toc.yml Adds the Canonical Data Model pattern to the patterns TOC.
docs/patterns/messaging/canonical-data-model.md New pattern documentation page describing runtime + generated usage.
docs/guides/pattern-coverage.md Adds the pattern to the documented coverage matrix.
docs/generators/toc.yml Adds canonical data model to generator docs navigation.
docs/generators/index.md Adds canonical data model to generator index table.
docs/generators/canonical-data-model.md New generator documentation page describing usage and diagnostics.
docs/examples/toc.yml Adds the order canonical data model example to examples TOC.
docs/examples/order-canonical-data-model.md New example documentation page for DI import and usage.
docs/examples/index.md Adds the new example to the examples landing page.

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Comment on lines +90 to +92
=> method.IsStatic &&
SymbolEqualityComparer.Default.Equals(method.ReturnType, canonicalType) &&
method.Parameters.Length == 1 &&

if (!IsMapper(mappers[0], sourceType, canonicalType))
{
context.ReportDiagnostic(Diagnostic.Create(InvalidMapper, mappers[0].Locations.FirstOrDefault(), mappers[0].Name));
Comment on lines +53 to +55
if (!_adapters.TryGetValue(typeof(TSource), out var adapter))
return CanonicalDataModelResult<TCanonical>.Failure(Name, typeof(TSource).Name, new InvalidOperationException($"No canonical data model adapter is registered for '{typeof(TSource).FullName}'."));

Comment on lines +120 to +124
else if (type.IsAbstract && type.TypeKind == TypeKind.Class)
sb.Append("abstract ");
else if (type.IsSealed && type.TypeKind == TypeKind.Class)
sb.Append("sealed ");
sb.Append("partial ").Append(type.TypeKind == TypeKind.Struct ? "struct" : "class").Append(' ').Append(type.Name).AppendLine();
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codecov Bot commented May 22, 2026

Codecov Report

❌ Patch coverage is 93.33333% with 14 lines in your changes missing coverage. Please review.
✅ Project coverage is 95.99%. Comparing base (0f1ee8c) to head (5001de8).

Files with missing lines Patch % Lines
.../CanonicalDataModel/CanonicalDataModelGenerator.cs 90.62% 9 Missing ⚠️
...tegration/CanonicalDataModel/CanonicalDataModel.cs 94.00% 3 Missing ⚠️
...onicalDataModelDemo/OrderCanonicalDataModelDemo.cs 93.33% 2 Missing ⚠️
Additional details and impacted files
@@            Coverage Diff             @@
##             main     #307      +/-   ##
==========================================
+ Coverage   90.27%   95.99%   +5.71%     
==========================================
  Files         432      436       +4     
  Lines       36236    36446     +210     
  Branches     5137     5167      +30     
==========================================
+ Hits        32713    34985    +2272     
+ Misses       1557     1461      -96     
+ Partials     1966        0    -1966     
Flag Coverage Δ
unittests 95.99% <93.33%> (+5.71%) ⬆️

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🔍 PR Validation Results

Version: ``

✅ Validation Steps

  • Build solution
  • Run tests
  • Build documentation
  • Dry-run NuGet packaging

📊 Artifacts

Dry-run artifacts have been uploaded and will be available for 7 days.


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Code Coverage

Summary
  Generated on: 05/22/2026 - 05:48:08
  Coverage date: 05/22/2026 - 05:46:08 - 05/22/2026 - 05:47:58
  Parser: MultiReport (9x Cobertura)
  Assemblies: 4
  Classes: 1269
  Files: 532
  Line coverage: 94.8%
  Covered lines: 35946
  Uncovered lines: 1937
  Coverable lines: 37883
  Total lines: 83723
  Branch coverage: 76.4% (10485 of 13723)
  Covered branches: 10485
  Total branches: 13723
  Method coverage: 96.3% (6960 of 7224)
  Full method coverage: 88.5% (6394 of 7224)
  Covered methods: 6960
  Fully covered methods: 6394
  Total methods: 7224

PatternKit.Core                                                                                                    96.1%
  PatternKit.Application.AntiCorruption.AntiCorruptionLayer<T1, T2>                                                90.4%
  PatternKit.Application.AntiCorruption.AntiCorruptionResult<T>                                                     100%
  PatternKit.Application.AuditLog.AuditLogAppendResult<T>                                                          85.7%
  PatternKit.Application.AuditLog.InMemoryAuditLog<T1, T2>                                                         95.4%
  PatternKit.Application.DataMapping.DataMapper<T1, T2>                                                            94.6%
  PatternKit.Application.DataMapping.DataMapperError                                                                 90%
  PatternKit.Application.DataMapping.DataMapperResult<T>                                                           84.6%
  PatternKit.Application.DomainEvents.DomainEventDispatcher<T>                                                     95.4%
  PatternKit.Application.DomainEvents.DomainEventDispatchResult                                                     100%
  PatternKit.Application.EventSourcing.EventStoreAppendResult                                                       100%
  PatternKit.Application.EventSourcing.InMemoryEventStore<T1, T2>                                                  97.9%
  PatternKit.Application.EventSourcing.StoredEvent<T1, T2>                                                           80%
  PatternKit.Application.FeatureToggles.FeatureToggleDecision                                                      87.5%
  PatternKit.Application.FeatureToggles.FeatureToggleRule<T>                                                        100%
  PatternKit.Application.FeatureToggles.FeatureToggleSet<T>                                                        96.9%
  PatternKit.Application.IdentityMap.IdentityMap<T1, T2>                                                            100%
  PatternKit.Application.IdentityMap.IdentityMapResult<T>                                                          92.8%
  PatternKit.Application.MaterializedViews.MaterializedView<T1, T2>                                                98.4%
  PatternKit.Application.Repository.InMemoryRepository<T1, T2>                                                     92.8%
  PatternKit.Application.Repository.RepositoryResult<T>                                                            93.3%
  PatternKit.Application.ServiceLayer.ServiceLayerOperation<T1, T2>                                                96.7%
  PatternKit.Application.ServiceLayer.ServiceLayerResult<T>                                                        94.7%
  PatternKit.Application.ServiceLayer.ServiceLayerRule<T>                                                           100%
  PatternKit.Application.Specification.Specification<T>                                                             100%
  PatternKit.Application.Specification.SpecificationRegistry<T>                                                    93.3%
  PatternKit.Application.TableDataGateway.InMemoryTableDataGateway<T1, T2>                                           86%
  PatternKit.Application.TableDataGateway.TableGatewayResult<T>                                                    82.3%
  PatternKit.Application.TransactionScript.TransactionScript<T1, T2>                                                 97%
  PatternKit.Application.TransactionScript.TransactionScriptError                                                    90%
  PatternKit.Application.TransactionScript.TransactionScriptResult<T>                                               100%
  PatternKit.Application.UnitOfWork.UnitOfWork                                                                     90.9%
  PatternKit.Application.UnitOfWork.UnitOfWorkResult                                                               94.7%
  PatternKit.Application.UnitOfWork.UnitOfWorkRollbackResult                                                        100%
  PatternKit.Application.UnitOfWork.UnitOfWorkStep                                                                  100%
  PatternKit.Behavioral.Chain.ActionChain<T>                                                                        100%
  PatternKit.Behavioral.Chain.AsyncActionChain<T>                                                                   100%
  PatternKit.Behavioral.Chain.AsyncResultChain<T1, T2>                                                             97.7%
  PatternKit.Behavioral.Chain.ResultChain<T1, T2>                                                                   100%

@JerrettDavis JerrettDavis merged commit be42863 into main May 22, 2026
13 checks passed
@JerrettDavis JerrettDavis deleted the feat/canonical-data-model-pattern branch May 22, 2026 05:53
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Add Canonical Data Model enterprise integration pattern

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