FESADev/phases/cpp-object-oriented-modular-refactoring/step23.md

Step 23: HDF5 Writer Modules

과거 개발 계획이다. 아래 작업·상태·예시는 현재 실행 지시가 아니다. 현재 구현과 검증 한계는 기능 요약을 따른다.

읽어야 할 파일

• /AGENTS.md
• ../../docs/solver-core/README.md
• ../../docs/solver-core/README.md
• ../../docs/solver-core/README.md
• ../../docs/linear-static-3d-euler-beam/README.md
• ../../docs/linear-static-mitc4-shell/README.md
• ../../docs/cpp-object-oriented-modular-refactoring/README.md
• Step 22 recovery candidate/result records
• /include/fesa/io/hdf5/hdf5_results_writer.h
• /src/fesa/io/hdf5/hdf5_results_writer.cpp
• /include/fesa/results/results_writer.h
• /tests/unit/io/hdf5/hdf5_results_writer_test.cpp
• /src/fesa/CMakeLists.txt, /tests/CMakeLists.txt
• /phases/cpp-object-oriented-modular-refactoring/index.json
• /phases/cpp-object-oriented-modular-refactoring/step23.md

작업

Requirement R-MODULE-001의 HDF5 split을 구현한다.

1. /tests/unit/io/hdf5/hdf5_writer_components_test.cpp를 먼저 추가한다. C-MODULE-003 tests backend-neutral dataset plans, finite inventory validation, self-check failure and atomic final-file preservation through private component seams.
2. Missing component headers/symbols provides RED.
3. Keep Hdf5ResultsWriter as the only public facade and keep all HDF5 ids/types private. Candidate modules:

hdf5_raii.h                    move-only private HDF5 handle wrappers
hdf5_primitives.h/.cpp         scalar/string/array/group/attribute operations
hdf5_model_writer.h/.cpp       exact model/source identity datasets
hdf5_result_writer.h/.cpp      exact mandatory beam/shell/global result datasets
hdf5_self_check.h/.cpp         reopen, shape, attribute and finite inventory checks
hdf5_atomic_file.h/.cpp        candidate path, preservation and final replacement

4. Testable backend-neutral plan records may be private to src/fesa/io/hdf5; tests may receive a PRIVATE include directory. Do not expose hid_t, HDF5 headers or storage handles in /include/fesa/.
5. Preserve every schema-v0 path, shape, attribute, units, row order, mandatory-output behavior, warning dataset, reopen self-check and existing-final preservation.
6. Reduce hdf5_results_writer.cpp to facade orchestration.

Acceptance Criteria

과거 도구 실행·출력 지시는 정리했으며, 현재 검증 방법은 기능 요약을 따른다.

검증 및 상태 갱신

• RED missing components, schema/atomicity focused suite, facade/vendor scans and full CTest를 summary에 기록한다.
• Schema, required output or preservation regression is error; never edit I/O docs to pass.
• 성공 시 현재 Step만 completed로 갱신한다.
• timestamp, retry, commit, advancement는 Executor 소유다.

금지사항

• HDF5 schema version, dataset paths/shapes/attributes를 변경하지 마라.
• HDF5 types/lifetime을 public solver core에 노출하지 마라.
• Invalid candidate로 existing final file을 replace하지 마라.
• 직접 commit하거나 hook script를 수동 실행하지 마라.