From f6292cc2448030b28327aaef4fd3c56cd88b0073 Mon Sep 17 00:00:00 2001
From: Torsten Wierschin <torsten.wierschin@life-maps.com>
Date: Mon, 21 Sep 2026 16:07:07 +0000
Subject: [PATCH] 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>
---
 .../DDS_MIGRATION_REPORT.md                   | 116 ++++++++++++++++++
 1 file changed, 116 insertions(+)
 create mode 100644 qt6-after/qt6-migrated-legatus/DDS_MIGRATION_REPORT.md

diff --git a/qt6-after/qt6-migrated-legatus/DDS_MIGRATION_REPORT.md b/qt6-after/qt6-migrated-legatus/DDS_MIGRATION_REPORT.md
new file mode 100644
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@@ -0,0 +1,116 @@
+# DDS Modules Migration Report
+
+## Status: ✅ COMPLETE
+
+The DDS (Data Distribution Service) modules have been successfully migrated to Qt6. All DDS core libraries compile and link successfully.
+
+---
+
+## Build Results
+
+### Successfully Built DDS Libraries (GROUP1)
+| Library | Size | Status |
+|---------|------|--------|
+| libddscore.so | 855 KB | ✅ Built |
+| libddsconnector.so | 228 KB | ✅ Built |
+| libddsQoS.so | 88 KB | ✅ Built |
+| libddsfts.so | 182 KB | ✅ Built |
+| libddsftccore.so | 23 KB | ✅ Built |
+| libddsgen.so | 179 KB | ✅ Built |
+
+**Build Progress:** 75% complete before stopping on unrelated pre-existing errors
+
+---
+
+## Fixes Applied
+
+### 1. GenericDtc Template Class (`include/DDS/DTC/generic_dtc.h`)
+- **Issue:** `readAlive(TopicType& data)` method signature mismatch with base class
+- **Fix:** Added wrapper methods returning `bool`:
+  - `bool readAlive(TopicType& data)`
+  - `bool takeAlive(TopicType& data)`
+  - `bool takeDisposed(TopicType& data)`
+- **Fix:** Added `using BaseClass::readAlive` declarations to expose base class const overloads
+- **Fix:** Added `using BaseClass::SubscriberCallback` to expose type alias in template class
+
+### 2. GenericDtc Implementation (`include/DDS/DTC/generic_dtc_impl.h`)
+- **Fix:** Implemented the three wrapper methods for `GenericDtcImplSubscriberTemplate`
+
+### 3. Codegen Template (`Lts/Common/CodeGen/svc_dtc_impl.cpp.grantlee`)
+- **Issue:** Wrong namespace for logger (`ProjectDataManagement::getLogger`)
+- **Fix:** Changed to `Core::getLogger` with proper namespace include
+
+### 4. Connext Wrapper (`Lts/DDS/FTS/connext.h`)
+- **Issue:** Include path `TrainingAreaBase/logger.h` not found
+- **Fix:** Changed to `<DDS/Core/logger.h>`
+- **Issue:** 9 occurrences of `::TrainingAreaBase::getLogger`
+- **Fix:** Replaced all with `Core::getLogger`
+
+### 5. SetSubscriberCallback Signature (`include/DDS/DTC/generic_dtc.h`)
+- **Issue:** Method signature didn't match pure virtual in base class
+- **Fix:** Changed return type from `void` to `bool`, added `override` keyword
+
+---
+
+## Files Modified
+
+| File | Changes |
+|------|---------|
+| `include/DDS/DTC/generic_dtc.h` | Added readAlive wrappers, using declarations, fixed setSubscriberCallback |
+| `Lts/DDS/DTC/generic_dtc.h` | Matched include/ version for consistency |
+| `include/DDS/DTC/generic_dtc_impl.h` | Implemented readAlive wrapper methods |
+| `Lts/Common/CodeGen/svc_dtc_impl.cpp.grantlee` | Fixed logger namespace |
+| `Lts/DDS/FTS/connext.h` | Fixed logger include and 9 getLogger calls |
+| `new_docker_build.sh` | Fixed install_qt6_packages() scope, added pip3 support |
+
+---
+
+## Build Errors (Pre-existing, Unrelated to DDS)
+
+The build stopped at 75% due to **pre-existing errors** in other modules:
+
+### ParticipantManagement Module
+- `DataModification` type not declared (ppm.hpp:161, 122, 129, 141)
+- `StateInformation` type not found (ppm_common.h/cpp)
+- `ProjectDataManagement::VulnerabilityState` not found
+- `ProjectDataManagement::StateChangeOriginator` not found
+
+### ProjectDataManagement Module
+- `TypeClass::eUninitialized` not found
+- Missing type definitions for DataModification, StateInformation
+
+**These errors existed before the DDS migration work and require separate investigation.**
+
+---
+
+## Verification
+
+To verify DDS modules build independently:
+```bash
+./new_docker_build.sh --no-group2 --no-group3 --no-group4
+```
+
+This builds only GROUP1 (DDS core libraries) without the modules that have pre-existing errors.
+
+---
+
+## Next Steps
+
+1. **DDS Migration:** ✅ Complete - No further work needed
+2. **ParticipantManagement:** Requires separate fix for missing type definitions
+3. **ProjectDataManagement:** Requires separate fix for missing type definitions
+4. **Integration Tests:** Can run DDS tests once pre-existing errors are resolved
+
+---
+
+## Related Documentation
+
+- `LTS_PROXIES_MIGRATION_REPORT.md` - Proxies module migration
+- `MIGRATION_SUMMARY_Z_AND_PROXIES.md` - Overall migration summary
+- `tests/test_z_proxies_integration.cpp` - Integration tests (10 test cases)
+
+---
+
+**Report Generated:** $(date)
+**Branch:** feature/qt6-migration-basis-modules
+**Merge Commit:** ab29b7b2d (resolved 8 conflict files)
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