CSVインポートとGTFSインポートを並行実行

[TinyKitten]

概要

CSV インポートと GTFS インポートを並行実行する構造に再編し、両方の合計所要時間を短縮する。

変更の種類

• バグ修正
• 新機能
• データの修正・追加
• リファクタリング
• ドキュメント
• CI/CD
• その他

変更内容

• import_csv から CREATE EXTENSION および create_table.sql の実行を create_schema として分離
• main.rs で create_schema を先行実行した後、GTFS インポートを tokio::spawn でバックグラウンド起動し、CSV インポートと並行実行
• CSV 完了時点でサーバ起動・ヘルスチェック通過（従来挙動を維持）
• CSV 完了後に GTFS の JoinHandle を待機し、integrate_gtfs_to_stations と ANALYZE を実行
• GTFS 失敗時の挙動は従来通り warn ログのみで継続

テスト

• cargo fmt --all -- --check が通ること
• cargo clippy -- -D warnings が通ること
• cargo test(SQLX_OFFLINE=true)が通ること

関連Issue

スクリーンショット（任意）

Summary by CodeRabbit

• Chores
  • 起動時のデータベーススキーマ準備処理を最適化し、CSV および GTFS データインポートの並列実行に対応
  • ヘルスチェック判定をデータベースのテーブル件数に基づいた実装に変更し、サービスの実際の準備状態をより正確に反映

[coderabbitai]

📝 Walkthrough

Walkthrough

Startup flow refactored to separate schema initialization from import logic, enabling parallel CSV/GTFS imports. Health check now monitors database station count rather than assuming serving state. Environment configuration centralized with validation and fallback defaults.

Changes

Startup initialization and parallel import refactoring

Layer / File(s)	Summary
Import API contract stationapi/src/import.rs	New create_schema() function handles pre-import setup (extensions, schema). import_csv() documentation updated to require prior schema initialization; extension creation responsibility removed.
Environment configuration parsing stationapi/src/main.rs	Helper functions parse PORT, HOST, METRICS_HOST, METRICS_PORT, DATABASE_MAX_CONNECTIONS (1–1000 range), and DISABLE_GRPC_WEB with fallback defaults and validation.
Database connection and health monitoring stationapi/src/main.rs	Connection pool created with configurable max connections; station_api_service_status() task monitors database station count to dynamically toggle health serving state instead of fixed initial serving.
Startup sequence stationapi/src/main.rs	Tracing initialized, Prometheus metrics listener started, create_schema() executed before imports.
Parallel import orchestration stationapi/src/main.rs	GTFS spawned as background task; CSV executed synchronously. After CSV, awaits GTFS result and conditionally integrates data and runs ANALYZE. GTFS failures do not block server startup; errors converted to strings to avoid Send trait issues.
Server assembly stationapi/src/main.rs	gRPC server built with conditional tonic-web support; QueryInteractor, StationApiServer, and reflection registered; service bound and listening.

Estimated code review effort

🎯 4 (Complex) | ⏱️ ~45 minutes

Suggested labels

feature

Poem

🐰 スキーマ先に、データ後から
並列で駆け抜けるイミポート
ヘルスチェックはDB次第
スタートアップ、賢くなりました
✨

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 50.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	PR のタイトルは、主要な変更内容（CSV と GTFS インポートの並行実行）を明確に要約しており、チェンジセットの中心的な目的と完全に一致しています。
Description check	✅ Passed	PR の説明は、テンプレートの主要セクション（概要、変更の種類、変更内容、テスト）を適切に埋めており、技術的な詳細も十分に記述されています。
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch feature/parallel-csv-gtfs-import

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[coderabbitai]

🧹 Nitpick comments (1)

stationapi/src/import.rs (1)

41-67: 💤 Low value

.parse() による String への変換は不要

String::from_utf8_lossy() は Cow<str> を返すため、.parse::<String>() を経由する必要はありません。.to_string() または .into_owned() で直接 String に変換できます。

♻️ 修正案

-    let create_sql: String = String::from_utf8_lossy(&create_sql_content).parse()?;
+    let create_sql: String = String::from_utf8_lossy(&create_sql_content).into_owned();

🤖 Prompt for AI Agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@stationapi/src/import.rs` around lines 41 - 67, The create_schema function is
converting the file bytes to a String via String::from_utf8_lossy(...).parse()
which is unnecessary and forces a parse Result; replace the parse step by
converting the Cow<str> directly to an owned String (use .into_owned() or
.to_string()) for the variable create_sql (derived from
create_sql_content/create_sql_path) so sqlx::raw_sql receives a String without
using .parse().

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Nitpick comments:
In `@stationapi/src/import.rs`:
- Around line 41-67: The create_schema function is converting the file bytes to
a String via String::from_utf8_lossy(...).parse() which is unnecessary and
forces a parse Result; replace the parse step by converting the Cow<str>
directly to an owned String (use .into_owned() or .to_string()) for the variable
create_sql (derived from create_sql_content/create_sql_path) so sqlx::raw_sql
receives a String without using .parse().

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: cf57f538-10f7-4b96-ba09-988a6fe2d030

📥 Commits

Reviewing files that changed from the base of the PR and between b16e16a and 2f84aa8.

📒 Files selected for processing (2)

• stationapi/src/import.rs
• stationapi/src/main.rs