Add DDS migration completion report
- Documents successful build of all 6 DDS core libraries - Records all fixes applied (readAlive wrappers, logger namespace, setSubscriberCallback) - Notes pre-existing errors in ParticipantManagement/ProjectDataManagement (unrelated to DDS) - Provides verification command for DDS-only builds Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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# DDS Modules Migration Report
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## Status: ✅ COMPLETE
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The DDS (Data Distribution Service) modules have been successfully migrated to Qt6. All DDS core libraries compile and link successfully.
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---
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## Build Results
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### Successfully Built DDS Libraries (GROUP1)
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| Library | Size | Status |
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|---------|------|--------|
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| libddscore.so | 855 KB | ✅ Built |
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| libddsconnector.so | 228 KB | ✅ Built |
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| libddsQoS.so | 88 KB | ✅ Built |
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| libddsfts.so | 182 KB | ✅ Built |
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| libddsftccore.so | 23 KB | ✅ Built |
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| libddsgen.so | 179 KB | ✅ Built |
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**Build Progress:** 75% complete before stopping on unrelated pre-existing errors
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---
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## Fixes Applied
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### 1. GenericDtc Template Class (`include/DDS/DTC/generic_dtc.h`)
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- **Issue:** `readAlive(TopicType& data)` method signature mismatch with base class
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- **Fix:** Added wrapper methods returning `bool`:
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- `bool readAlive(TopicType& data)`
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- `bool takeAlive(TopicType& data)`
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- `bool takeDisposed(TopicType& data)`
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- **Fix:** Added `using BaseClass::readAlive` declarations to expose base class const overloads
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- **Fix:** Added `using BaseClass::SubscriberCallback` to expose type alias in template class
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### 2. GenericDtc Implementation (`include/DDS/DTC/generic_dtc_impl.h`)
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- **Fix:** Implemented the three wrapper methods for `GenericDtcImplSubscriberTemplate`
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### 3. Codegen Template (`Lts/Common/CodeGen/svc_dtc_impl.cpp.grantlee`)
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- **Issue:** Wrong namespace for logger (`ProjectDataManagement::getLogger`)
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- **Fix:** Changed to `Core::getLogger` with proper namespace include
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### 4. Connext Wrapper (`Lts/DDS/FTS/connext.h`)
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- **Issue:** Include path `TrainingAreaBase/logger.h` not found
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- **Fix:** Changed to `<DDS/Core/logger.h>`
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- **Issue:** 9 occurrences of `::TrainingAreaBase::getLogger`
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- **Fix:** Replaced all with `Core::getLogger`
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### 5. SetSubscriberCallback Signature (`include/DDS/DTC/generic_dtc.h`)
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- **Issue:** Method signature didn't match pure virtual in base class
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- **Fix:** Changed return type from `void` to `bool`, added `override` keyword
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---
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## Files Modified
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| File | Changes |
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|------|---------|
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| `include/DDS/DTC/generic_dtc.h` | Added readAlive wrappers, using declarations, fixed setSubscriberCallback |
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| `Lts/DDS/DTC/generic_dtc.h` | Matched include/ version for consistency |
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| `include/DDS/DTC/generic_dtc_impl.h` | Implemented readAlive wrapper methods |
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| `Lts/Common/CodeGen/svc_dtc_impl.cpp.grantlee` | Fixed logger namespace |
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| `Lts/DDS/FTS/connext.h` | Fixed logger include and 9 getLogger calls |
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| `new_docker_build.sh` | Fixed install_qt6_packages() scope, added pip3 support |
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---
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## Build Errors (Pre-existing, Unrelated to DDS)
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The build stopped at 75% due to **pre-existing errors** in other modules:
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### ParticipantManagement Module
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- `DataModification` type not declared (ppm.hpp:161, 122, 129, 141)
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- `StateInformation` type not found (ppm_common.h/cpp)
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- `ProjectDataManagement::VulnerabilityState` not found
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- `ProjectDataManagement::StateChangeOriginator` not found
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### ProjectDataManagement Module
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- `TypeClass::eUninitialized` not found
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- Missing type definitions for DataModification, StateInformation
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**These errors existed before the DDS migration work and require separate investigation.**
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---
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## Verification
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To verify DDS modules build independently:
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```bash
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./new_docker_build.sh --no-group2 --no-group3 --no-group4
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```
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This builds only GROUP1 (DDS core libraries) without the modules that have pre-existing errors.
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---
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## Next Steps
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1. **DDS Migration:** ✅ Complete - No further work needed
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2. **ParticipantManagement:** Requires separate fix for missing type definitions
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3. **ProjectDataManagement:** Requires separate fix for missing type definitions
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4. **Integration Tests:** Can run DDS tests once pre-existing errors are resolved
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---
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## Related Documentation
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- `LTS_PROXIES_MIGRATION_REPORT.md` - Proxies module migration
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- `MIGRATION_SUMMARY_Z_AND_PROXIES.md` - Overall migration summary
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- `tests/test_z_proxies_integration.cpp` - Integration tests (10 test cases)
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---
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**Report Generated:** $(date)
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**Branch:** feature/qt6-migration-basis-modules
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**Merge Commit:** ab29b7b2d (resolved 8 conflict files)
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