docs(04-01): complete BaseProcessor and ParseProcessor plan

- BaseProcessor abstract class with unified interface - ParseProcessor wrapping LinkParser for URL parsing - ParseInput/ParseOutput schemas for parse step - All tests passing (18 tests) Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-13 23:16:17 +08:00
parent 06d36fc440
commit 57e6d9b6b2
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+---
+phase: 04-analysis-orchestration
+plan: 01
+subsystem: pipeline-architecture
+tags: [processor, abstract-class, url-parsing, tdd, pydantic]
+
+requires:
+  - phase: 01-foundation
+    provides: WorkflowStateManager, StepInput/StepOutput schemas
+  - phase: 02-platform-skills
+    provides: LinkParser for URL parsing
+provides:
+  - BaseProcessor abstract class for unified processor interface
+  - ParseProcessor implementation wrapping LinkParser
+  - ParseInput/ParseOutput schemas for parse step
+affects: [04-02, 04-03, 04-04, 04-05]
+
+tech-stack:
+  added: []
+  patterns:
+    - "ABC (Abstract Base Class) pattern for processor interface"
+    - "TDD workflow: RED (failing tests) -> GREEN (implementation) -> commit"
+
+key-files:
+  created:
+    - kb_pipeline/processors/base.py
+    - kb_pipeline/processors/parse.py
+    - tests/test_processors/test_base.py
+    - tests/test_processors/test_parse.py
+  modified:
+    - kb_pipeline/schemas.py
+    - kb_pipeline/processors/__init__.py
+
+key-decisions:
+  - "BaseProcessor uses ABC with @abstractmethod for process()"
+  - "STEP_NAME as class attribute (not instance) for consistency with ASRProcessor pattern"
+  - "ParseInput content_id and platform default to empty string (populated after parse)"
+  - "ParseProcessor wraps LinkParser directly without retry logic (retry belongs in concrete implementations)"
+
+patterns-established:
+  - "All processors inherit from BaseProcessor with STEP_NAME and async process() method"
+  - "State recording only when state_manager is provided (optional dependency)"
+
+requirements-completed: [MNT-01]
+
+duration: 5min
+completed: 2026-03-13
+---
+
+# Phase 04 Plan 01: BaseProcessor and ParseProcessor Summary
+
+**Unified BaseProcessor abstract class and ParseProcessor implementation establishing the foundation for pipeline architecture**
+
+## Performance
+
+- **Duration:** 5 min
+- **Started:** 2026-03-13T15:09:46Z
+- **Completed:** 2026-03-13T15:14:40Z
+- **Tasks:** 3
+- **Files modified:** 6
+
+## Accomplishments
+- BaseProcessor abstract class defining unified interface for all processors
+- ParseProcessor correctly wrapping LinkParser for Bilibili/Zhihu URL parsing
+- ParseInput/ParseOutput schemas with proper validation
+- All processors exportable from kb_pipeline.processors module
+
+## Task Commits
+
+Each task was committed atomically:
+
+1. **Task 1: Define BaseProcessor abstract class** - `3ad2576` (test/feat)
+2. **Task 2: Add ParseInput and ParseOutput schemas** - `efddef9` (feat)
+3. **Task 3: Implement ParseProcessor with __init__.py export** - `06d36fc` (feat)
+
+**Plan metadata:** pending (docs: complete plan)
+
+_Note: TDD tasks may have multiple commits (test -> feat -> refactor)_
+
+## Files Created/Modified
+- `kb_pipeline/processors/base.py` - Abstract base class with STEP_NAME and process() method
+- `kb_pipeline/processors/parse.py` - ParseProcessor wrapping LinkParser
+- `kb_pipeline/processors/__init__.py` - Module exports (BaseProcessor, ParseProcessor, ASRProcessor)
+- `kb_pipeline/schemas.py` - Added ParseInput and ParseOutput schemas
+- `tests/test_processors/test_base.py` - Tests for BaseProcessor abstract behavior
+- `tests/test_processors/test_parse.py` - Tests for ParseProcessor URL parsing
+
+## Decisions Made
+- BaseProcessor uses ABC with @abstractmethod to enforce process() implementation
+- STEP_NAME as class attribute (matches existing ASRProcessor pattern)
+- ParseInput content_id/platform default to empty (populated after parsing)
+- No retry logic in BaseProcessor (belongs in concrete implementations)
+- State recording optional (only when state_manager provided)
+
+## Deviations from Plan
+
+None - plan executed exactly as written.
+
+## Issues Encountered
+- Test mock path needed adjustment: mock `kb_pipeline.processors.base.get_settings` instead of `kb_pipeline.processors.parse.get_settings` because BaseProcessor.__init__ calls get_settings()
+
+## User Setup Required
+
+None - no external service configuration required.
+
+## Next Phase Readiness
+- Processor interface established, ready for additional processor implementations
+- ParseProcessor provides URL parsing for downstream download/ASR steps
+- State management integration tested and working
+
+---
+*Phase: 04-analysis-orchestration*
+*Completed: 2026-03-13*
+
+## Self-Check: PASSED
+
+All files verified:
+- kb_pipeline/processors/base.py
+- kb_pipeline/processors/parse.py
+- tests/test_processors/test_base.py
+- tests/test_processors/test_parse.py
+- .planning/phases/04-analysis-orchestration/04-01-SUMMARY.md
+
+All commits verified:
+- 3ad2576: test(04-01): add failing tests for BaseProcessor abstract class
+- efddef9: feat(04-01): add ParseInput and ParseOutput schemas
+- 06d36fc: feat(04-01): implement ParseProcessor and update module exports