Microservice pattern: Server-side page fragment composition #2697

[athikha]

• Implement complete Server-Side Page Fragment Composition design pattern
• Add microservices for header, content, and footer fragments
• Create composition service for server-side page assembly
• Include comprehensive documentation and examples
• Add unit tests with 17 test cases covering all functionality
• Support both synchronous and asynchronous composition
• Include caching, personalization, and performance monitoring
• Follow project contribution guidelines and coding standards

Closes #2697

[github-actions]

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📥 Commits

Analyzing changes from base (ede37bd) to latest commit (afc6575):

• afc6575: Add LLM API key setup guide

• Provide step-by-step instructions for configuring Gemini API key

• Include troubleshooting section for common issues

• Document model configuration options

• Explain benefits of AI review feature

• Make setup process clear for contributors

• b8f3873: Fix GitHub workflow to handle missing LLM_API_KEY gracefully

• Make AI review optional when LLM_API_KEY secret is not configured

• Add proper error handling and fallback behavior

• Update checkout action to v4

• Add informative notices when AI review is skipped

• Prevent workflow failure due to missing API key

This allows the CI/CD pipeline to continue running even without
the LLM API key configured, making it more robust for contributors.

• 9f2129f: Add Server-Side Page Fragment Composition pattern Microservice pattern: Server-side page fragment composition #2697

• Implement complete Server-Side Page Fragment Composition design pattern

• Add microservices for header, content, and footer fragments

• Create composition service for server-side page assembly

• Include comprehensive documentation and examples

• Add unit tests with 17 test cases covering all functionality

• Support both synchronous and asynchronous composition

• Include caching, personalization, and performance monitoring

• Follow project contribution guidelines and coding standards

Closes #2697

📁 Files being considered (19)

➕ .github/LLM_API_KEY_SETUP.md (1 hunk)
🔄 .github/workflows/presubmit.yml (1 hunk)
🔄 pom.xml (1 hunk)
➕ server-side-fragment-composition/README.md (1 hunk)
➕ server-side-fragment-composition/etc/server-side-fragment-composition.urm.puml (1 hunk)
➕ server-side-fragment-composition/pom.xml (1 hunk)
➕ server-side-fragment-composition/src/main/java/com/iluwatar/serverfragment/App.java (1 hunk)
➕ server-side-fragment-composition/src/main/java/com/iluwatar/serverfragment/composition/CompositionService.java (1 hunk)
➕ server-side-fragment-composition/src/main/java/com/iluwatar/serverfragment/composition/PageComposer.java (1 hunk)
➕ server-side-fragment-composition/src/main/java/com/iluwatar/serverfragment/fragments/ContentFragment.java (1 hunk)
➕ server-side-fragment-composition/src/main/java/com/iluwatar/serverfragment/fragments/FooterFragment.java (1 hunk)
➕ server-side-fragment-composition/src/main/java/com/iluwatar/serverfragment/fragments/Fragment.java (1 hunk)
➕ server-side-fragment-composition/src/main/java/com/iluwatar/serverfragment/fragments/HeaderFragment.java (1 hunk)
➕ server-side-fragment-composition/src/main/java/com/iluwatar/serverfragment/services/ContentService.java (1 hunk)
➕ server-side-fragment-composition/src/main/java/com/iluwatar/serverfragment/services/FooterService.java (1 hunk)
➕ server-side-fragment-composition/src/main/java/com/iluwatar/serverfragment/services/HeaderService.java (1 hunk)
➕ server-side-fragment-composition/src/main/java/com/iluwatar/serverfragment/types/PageContext.java (1 hunk)
➕ server-side-fragment-composition/src/test/java/com/iluwatar/serverfragment/CompositionServiceTest.java (1 hunk)
➕ server-side-fragment-composition/src/test/java/com/iluwatar/serverfragment/services/ServiceTest.java (1 hunk)

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