[I] HuggingFace inference operator: task dropdown offers tasks with no codegen, which silently fall back to text-gen and emit raw JSON [texera]

["PG1204 (via GitHub)" <gi...@apache.org>]

PG1204 opened a new issue, #7047:
URL: https://github.com/apache/texera/issues/7047

   ### What happened?
   
   The HuggingFace operator's task selector lists pipeline tasks the operator can't actually run. `STATIC_TASK_OPTIONS` in `frontend/src/app/workspace/component/hugging-face/hugging-face.component.ts` (and the dynamic list fetched from HF's `/api/tasks`) include tasks that have no corresponding `TaskCodegen`, e.g. `text-classification`, `token-classification`, `translation`, `summarization`, `feature-extraction`, `fill-mask`.
   
   The operator only registers codegens for a fixed set of tasks (`TextGenCodegen`, `ImageTaskCodegen`, `AudioTaskCodegen`, `MediaGenCodegen`, `QaRankingCodegen`, see `registeredCodegens` in `HuggingFaceInferenceOpDesc`). Any task outside that set falls through to `TextGenCodegen`, whose payload hits the generic `{"inputs": prompt_value}` branch and whose parser only handles `text-generation`. The result: the row's output cell gets a raw `json.dumps(body)` of whatever the endpoint returned, with no indication the task isn't supported. The unrecognized-task fallback is intentional as a safety net (keeps codegen total), but the UI actively steering users into it is not.
   
   Proposed fix: prune the task selector to the tasks that actually have a codegen, and filter both `STATIC_TASK_OPTIONS` and the dynamic `/api/tasks` result against a supported-task set. "Only show what works" is simpler and clearer than showing unsupported tasks with a warning label. The supported set currently lives implicitly in the Scala codegen registrations, so the frontend needs its own copy of that list; the PR should keep the two in sync (and note it) so a newly added codegen surfaces in the UI. Scope is frontend-only (`hugging-face.component.ts` + its spec).
   
   Supported tasks today (the allowed set): text-generation; image-classification, object-detection, image-segmentation, image-to-text, visual-question-answering, document-question-answering, zero-shot-image-classification, image-text-to-text, image-to-image; automatic-speech-recognition, audio-classification, text-to-speech; text-to-image, text-to-video; question-answering, table-question-answering, zero-shot-classification, sentence-similarity, text-ranking.
   
   ### How to reproduce?
   
   1. Add a HuggingFace inference operator and open the task dropdown.
   2. Select an unsupported task, e.g. `summarization` or `translation`, pick any model, and
      run the workflow.
   3. The result column contains a raw JSON dump of the endpoint response instead of a
      task-appropriate result, and nothing warned that the task isn't supported.
   
   ### Version/Branch
   
   1.3.0-incubating-SNAPSHOT (main)
   
   ### Commit Hash (Optional)
   
   _No response_
   
   ### What browsers are you seeing the problem on?
   
   _No response_
   
   ### Relevant log output
   
   ```shell
   
   ```


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Re: [I] HuggingFace inference operator: task dropdown offers tasks with no codegen, which silently fall back to text-gen and emit raw JSON [texera]

["xuang7 (via GitHub)" <gi...@apache.org>]

xuang7 closed issue #7047: HuggingFace inference operator: task dropdown offers tasks with no codegen, which silently fall back to text-gen and emit raw JSON
URL: https://github.com/apache/texera/issues/7047


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Re: [I] HuggingFace inference operator: task dropdown offers tasks with no codegen, which silently fall back to text-gen and emit raw JSON [texera]

["PG1204 (via GitHub)" <gi...@apache.org>]

PG1204 commented on issue #7047:
URL: https://github.com/apache/texera/issues/7047#issuecomment-5122440134

   /take


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