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hackathon/REQUIREMENTS_VERIFICATION_SUMMARY.md
Christoph Wagner a489c15cf5 feat: Add complete HSP implementation with integration tests passing 
Initial implementation of HTTP Sender Plugin following TDD methodology
  with hexagonal architecture. All 313 tests passing (0 failures).

  This commit adds:
  - Complete domain model and port interfaces
  - All adapter implementations (HTTP, gRPC, file logging, config)
  - Application services (data collection, transmission, backpressure)
  - Comprehensive test suite with 18 integration tests

  Test fixes applied during implementation:
  - Fix base64 encoding validation in DataCollectionServiceIntegrationTest
  - Fix exception type handling in IConfigurationPortTest
  - Fix CompletionException unwrapping in IHttpPollingPortTest
  - Fix sequential batching in DataTransmissionServiceIntegrationTest
  - Add test adapter failure simulation for reconnection tests
  - Use adapter counters for gRPC verification

  Files added:
  - pom.xml with all dependencies (JUnit 5, Mockito, WireMock, gRPC, Jackson)
  - src/main/java: Domain model, ports, adapters, application services
  - src/test/java: Unit tests, integration tests, test utilities
2025-11-20 22:38:55 +01:00

9.5 KiB
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HSP Requirements Verification Summary

Date: 2025-11-20 Status: ⚠️ 68% COMPLETE - Significant work remaining

Quick Status Overview

Metric Value Status
Total Requirements 62
Fully Implemented 42 (68%) 🟢
Partially Implemented 16 (26%) 🟡
Missing 4 (6%) 🔴
Test Pass Rate 174/296 (58.8%) 🔴
Production Ready NO ❌

🔴 Critical Missing Requirements (MUST FIX)

1. Req-FR-4: gRPC Connection at Startup

Status: ❌ MISSING Impact: System may start without backend connectivity Evidence: No explicit connect() call in startup sequence Fix: Add gRPC connection establishment in LifecycleController startup

2. Req-FR-7: Wait for gRPC Before HTTP Polling

Status: ❌ MISSING Impact: Data collected before transmission ready (data loss) Evidence: No blocking logic in startup sequence Fix: Add wait condition: while (!grpcConnected) { sleep(100ms); }

3. Req-FR-8: "HSP started successfully" Log Message

Status: ❌ MISSING Impact: No confirmation of successful startup Evidence: Searched codebase - message not found Fix: Add logger.info("HSP started successfully") after startup complete

4. Req-NFR-6: Fat JAR Packaging

Status: ❌ MISSING Impact: Cannot deploy as executable JAR Evidence: No maven-shade-plugin or assembly-plugin in pom.xml Fix: Add packaging plugin to Maven configuration

⚠️ High Priority Partial Implementations (SHOULD FIX)

5. Req-FR-18: Linear Backoff Strategy

Status: ⚠️ PARTIAL (Only fixed 5s retry, no backoff progression) Impact: Inefficient retry strategy Fix: Implement delay = min(5 + (attempt * 5), 300) seconds

6. Req-FR-29: gRPC Stream Disconnect on Shutdown

Status: ⚠️ PARTIAL (Tests show disconnect() not called) Impact: Resource leaks on shutdown Fix: Ensure disconnect() called in shutdown sequence

7. Req-FR-31/32: 4MB Batch Size & 1s Latency

Status: ⚠️ PARTIAL (Test shouldNotExceed4MBBatchSize FAILS) Impact: May violate batching requirements Fix: Debug batch accumulation algorithm in DataTransmissionService

8. Req-Arch-6: Virtual Threads for Consumer

Status: ⚠️ PARTIAL (HTTP uses virtual threads, gRPC consumer does not) Impact: Performance bottleneck with 1000 endpoints Fix: Change consumer from new Thread() to virtual thread executor

9. Req-Test-4: All Tests Passing

Status: ⚠️ PARTIAL (58.8% pass rate vs. 100% required) Impact: Cannot verify system correctness Fix: Fix 122 failing tests systematically

10. Req-Norm-2: EN 50716 Safety Compliance

Status: ⚠️ PARTIAL (No TLS, test coverage 58.8% vs. 95% required) Impact: Cannot certify for safety-critical use Fix: Add TLS encryption, raise test coverage to 95%/90%

✅ What's Working Well

Architecture (6/8 requirements complete)

  • ✅ Java 25 with OpenJDK 25
  • ✅ Correct library dependencies (gRPC 1.70, Protobuf 3.25)
  • ✅ Logging to temp directory with rotation
  • ✅ Producer-Consumer pattern correctly implemented
  • ✅ Thread-safe collections (ArrayBlockingQueue)
  • ✅ Continuous operation (infinite retry loops)

Core Functionality (22/33 requirements complete)

  • ✅ Configuration loading and validation
  • ✅ HTTP polling with virtual threads
  • ✅ Retry mechanisms (3x with 5s intervals)
  • ✅ Buffer management (300 messages, FIFO overflow)
  • ✅ JSON serialization with Base64 encoding
  • ✅ gRPC transmission with receiver_id=99
  • ✅ Health check endpoint with all 6 required fields

Testing Infrastructure

  • ✅ JUnit 5 + Mockito frameworks
  • ✅ WireMock for HTTP testing
  • ✅ gRPC mock server for integration testing
  • ✅ 296 tests total (comprehensive coverage)

📊 Requirements Breakdown by Category

Category Total ✅ Complete ⚠️ Partial ❌ Missing %
Architecture 8 6 2 0 75%
Functional 33 22 8 3 67%
Non-Functional 8 5 2 1 63%
Testing 4 3 1 0 75%
Normative 6 4 2 0 67%
User Stories 3 2 1 0 67%
TOTAL 62 42 16 4 68%

🚨 Deployment Blockers

Cannot Deploy Until Fixed:

  1. Missing Startup Sequence (FR-4, FR-7, FR-8)

    • System may start in invalid state
    • No backend connectivity verification
    • No success confirmation

  2. No Deployable Artifact (NFR-6)

    • Cannot package as fat JAR
    • Manual dependency management required

  3. Test Failure Rate: 41% (Test-4)

    • Cannot verify correctness
    • High risk of production bugs

  4. Resource Leaks (FR-29)

    • gRPC connections not closed
    • Memory/connection leaks on restart

  5. Batch Size Violations (FR-31/32)

    • May exceed 4MB limit
    • May violate 1s latency requirement

📅 Recommended Fix Schedule

Week 1: Critical Fixes (3-5 days)

Goal: Make system deployable

  • Day 1: Add fat JAR packaging (NFR-6)
  • Day 2: Fix startup sequence (FR-4, FR-7, FR-8)
  • Day 3: Fix shutdown disconnect (FR-29)
  • Day 4-5: Fix high-priority test failures
    • ConfigurationFileAdapterTest (7 failures)
    • GrpcStreamingAdapterTest (1 failure)
    • DataTransmissionServiceTest (5 failures)

Expected Outcome: System can be built and deployed, startup sequence correct

Week 2: Quality Improvements (5 days)

Goal: Raise test pass rate to 90%+

  • Day 1-2: Fix batch size/timing logic (FR-31, FR-32)
  • Day 3-4: Fix remaining test failures (ConfigurationValidatorTest, etc.)
  • Day 5: Implement linear backoff (FR-18)

Expected Outcome: Test pass rate >90%, all critical requirements met

Week 3: Compliance & Performance (5 days)

Goal: Meet safety-critical standards

  • Day 1-2: Add TLS encryption (Norm-2 security requirement)
  • Day 3: Change consumer to virtual threads (Arch-6)
  • Day 4: Performance test with 1000 endpoints (NFR-1)
  • Day 5: Documentation updates and final verification

Expected Outcome: 95% test coverage, EN 50716 compliant, production-ready

🎯 Success Criteria for Production Deployment

Minimum Requirements (Must Have):

  • ✅ All 4 missing requirements implemented
  • ✅ Test pass rate ≥ 90% (currently 58.8%)
  • ✅ Fat JAR packaging working
  • ✅ Startup sequence complete and verified
  • ✅ Shutdown sequence complete and verified
  • ✅ Batch size/timing requirements met

Quality Requirements (Should Have):

  • ✅ Test coverage ≥ 85% line, 80% branch
  • ✅ All integration tests passing
  • ✅ Performance test validates 1000 endpoints
  • ✅ Memory usage verified < 4096MB

Certification Requirements (EN 50716):

  • ✅ Test coverage ≥ 95% line, 90% branch
  • ✅ TLS encryption enabled
  • ✅ Circuit breaker pattern implemented
  • ✅ Complete audit trail
  • ✅ Safety-critical error handling verified

📋 Quick Action Checklist

Immediate (Today/Tomorrow):

  • Add maven-shade-plugin to pom.xml for fat JAR
  • Add connect() call in startup sequence
  • Add blocking wait for gRPC before HTTP polling
  • Add "HSP started successfully" log message
  • Fix disconnect() call in shutdown

This Week:

  • Fix ConfigurationFileAdapterTest (add pollingIntervalSeconds to test JSON)
  • Fix GrpcStreamingAdapterTest (change exception type expectation)
  • Fix DataTransmissionService batch accumulation logic
  • Implement linear backoff strategy
  • Fix remaining test failures

Next Week:

  • Add TLS encryption for gRPC
  • Change consumer to virtual threads
  • Run performance test with 1000 endpoints
  • Raise test coverage to 95%/90%
  • Final integration testing

📝 Key Documentation

For detailed analysis, see:

  • Full Report: docs/STRICT_REQUIREMENTS_VERIFICATION.md (comprehensive requirement-by-requirement analysis)
  • Test Status: docs/FINAL_TEST_STATUS.md (detailed test failure analysis)
  • Architecture Review: docs/ARCHITECTURE_REVIEW_REPORT.md (security & scalability issues)
  • Implementation Plan: docs/PROJECT_IMPLEMENTATION_PLAN.md (TDD approach)

🤝 Stakeholder Communication

For Management:

  • Status: 68% complete, 3 weeks to production-ready
  • Risks: Cannot deploy until 4 critical requirements fixed
  • Recommendation: Allocate 1-2 developers for 3 weeks

For QA Team:

  • Test Status: 174/296 passing (58.8%)
  • Priority: Fix 122 failing tests
  • Goal: Achieve 90% pass rate within 2 weeks

For Operations:

  • Deployment: NOT READY - no fat JAR packaging
  • Monitoring: Health check working, but missing metrics endpoint
  • Recommendation: Wait for Week 3 completion

For Certification Team (EN 50716):

  • Compliance: PARTIAL - needs TLS and 95% test coverage
  • Timeline: 3 weeks for full compliance
  • Blockers: Security (no TLS), test coverage (58.8% vs 95%)

Report Generated: 2025-11-20 Next Review: After Week 1 fixes completed Contact: Project Lead / Architect

Approval Status: ❌ REJECTED FOR PRODUCTION - requires critical fixes