⚡ Bolt: FileSystemArtifactStore에서 Files.exists() 호출 제거 및 NoSuchFileException 처리 - #218
Conversation
`Files.exists()`를 통한 파일 존재 여부 확인 후 파일을 읽는 로직을 제거하고, 파일을 직접 읽은 뒤 `NoSuchFileException`을 잡도록 수정하여 TOCTOU(Time-Of-Check to Time-Of-Use) 경쟁 조건을 방지하고 성능을 향상시켰습니다.
|
👋 Jules, reporting for duty! I'm here to lend a hand with this pull request. When you start a review, I'll add a 👀 emoji to each comment to let you know I've read it. I'll focus on feedback directed at me and will do my best to stay out of conversations between you and other bots or reviewers to keep the noise down. I'll push a commit with your requested changes shortly after. Please note there might be a delay between these steps, but rest assured I'm on the job! For more direct control, you can switch me to Reactive Mode. When this mode is on, I will only act on comments where you specifically mention me with New to Jules? Learn more at jules.google/docs. For security, I will only act on instructions from the user who triggered this task. |
|
Warning Review limit reached
Next review available in: 4 minutes Enable usage-based reviews in Billing to review now. Otherwise, wait until the next included review is available. How can I continue?After more reviews become available, a review can be triggered using the To avoid repeated limits, reduce automatic review volume by pausing incremental auto-reviews earlier, using label-based review opt-in, excluding WIP or generated PR titles, or requesting reviews manually when the PR is ready. If your team needs uninterrupted high-volume reviews, an organization admin can enable usage-based reviews. How do review limits work?CodeRabbit enforces per-developer PR review limits for each organization. Most developers receive the normal plan review availability. For paid Pro and Pro+ PR reviews, CodeRabbit uses adaptive limits for sustained high-volume activity. When a developer's recent PR review activity reaches the 95th percentile or higher among CodeRabbit users, additional reviews become available more gradually as earlier reviews age out of the rolling window. Please refer docs for additional details. Review details⚙️ Run configurationConfiguration used: Organization UI Review profile: CHILL Plan: Pro Plus Run ID: 📒 Files selected for processing (2)
✨ Finishing Touches🧪 Generate unit tests (beta)
Comment |
There was a problem hiding this comment.
Pull request overview
This PR optimizes the disk-backed artifact read path in Clearfolio Viewer by removing a redundant filesystem existence check and handling missing artifacts via NoSuchFileException, reducing extra I/O and avoiding a TOCTOU race in FileSystemArtifactStore.
Changes:
- Removed the pre-read
Files.exists()check inFileSystemArtifactStore#getPdf. - Treated missing artifacts by catching
NoSuchFileExceptionand returningOptional.empty(). - Documented the TOCTOU/I-O optimization learning in
.jules/bolt.md.
Reviewed changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.
| File | Description |
|---|---|
| src/main/java/com/clearfolio/viewer/artifact/FileSystemArtifactStore.java | Removes redundant existence check and handles missing artifact reads via NoSuchFileException to avoid TOCTOU + extra I/O. |
| .jules/bolt.md | Adds a short note capturing the optimization rationale (TOCTOU avoidance / fewer disk hits). |
💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.
| ## 2024-07-28 - I/O 성능 최적화: TOCTOU 방지 | ||
| **Learning:** `Files.exists()`를 먼저 호출하고 파일을 읽는 것은 디스크 접근을 두 번 하게 만들 뿐만 아니라 TOCTOU (Time-Of-Check to Time-Of-Use) 경쟁 조건을 발생시킬 수 있다. | ||
| **Action:** 파일이 존재하지 않는 것을 처리해야 할 경우, 파일을 직접 읽은 뒤 발생하는 `java.nio.file.NoSuchFileException`을 잡아서 처리하도록 하여 디스크 I/O를 줄이고 성능을 향상시킨다. |
Superseded by #222.