feat(platform): Complete Postgres-Only architecture refactoring (Phase 1-7)
Major Changes: - Implement Platform-Only architecture pattern (unified task management) - Add PostgresCacheAdapter for unified caching (platform_schema.app_cache) - Add PgBossQueue for job queue management (platform_schema.job) - Implement CheckpointService using job.data (generic for all modules) - Add intelligent threshold-based dual-mode processing (THRESHOLD=50) - Add task splitting mechanism (auto chunk size recommendation) - Refactor ASL screening service with smart mode selection - Refactor DC extraction service with smart mode selection - Register workers for ASL and DC modules Technical Highlights: - All task management data stored in platform_schema.job.data (JSONB) - Business tables remain clean (no task management fields) - CheckpointService is generic (shared by all modules) - Zero code duplication (DRY principle) - Follows 3-layer architecture principle - Zero additional cost (no Redis needed, save 8400 CNY/year) Code Statistics: - New code: ~1750 lines - Modified code: ~500 lines - Test code: ~1800 lines - Documentation: ~3000 lines Testing: - Unit tests: 8/8 passed - Integration tests: 2/2 passed - Architecture validation: passed - Linter errors: 0 Files: - Platform layer: PostgresCacheAdapter, PgBossQueue, CheckpointService, utils - ASL module: screeningService, screeningWorker - DC module: ExtractionController, extractionWorker - Tests: 11 test files - Docs: Updated 4 key documents Status: Phase 1-7 completed, Phase 8-9 pending
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backend/src/tests/README.md
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# Phase 1-5 测试指南
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## 📋 测试概览
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本目录包含 4 个独立的测试脚本,用于验证 Postgres-Only 架构的核心组件:
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| 测试脚本 | 测试内容 | 预计耗时 |
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|---------|---------|----------|
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| `test-postgres-cache.ts` | PostgresCacheAdapter(缓存读写、过期、批量操作) | ~30秒 |
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| `test-pgboss-queue.ts` | PgBossQueue(任务入队、处理、重试) | ~20秒 |
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| `test-checkpoint.ts` | CheckpointService(断点保存、恢复、中断续传) | ~15秒 |
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| `test-task-split.ts` | 任务拆分工具(splitIntoChunks、recommendChunkSize) | <1秒 |
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---
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## 🚀 快速开始
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### 前置条件
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1. ✅ **数据库迁移已完成**
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```bash
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# 确认app_cache表和新字段已创建
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psql -U postgres -d ai_clinical -c "\dt platform_schema.app_cache"
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```
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2. ✅ **pg-boss依赖已安装**
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```bash
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npm list pg-boss
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```
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3. ✅ **环境变量已配置**
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- `DATABASE_URL` 指向正确的数据库
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---
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## 📝 测试执行
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### 1️⃣ 测试 PostgresCacheAdapter(缓存)
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```bash
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cd AIclinicalresearch/backend
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npx ts-node src/tests/test-postgres-cache.ts
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```
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**测试内容:**
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- ✅ 基本读写(set/get)
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- ✅ 过期机制(2秒TTL验证)
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- ✅ 批量操作(mset/mget)
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- ✅ 删除操作(delete)
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- ✅ has() 方法
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- ✅ 过期数据自动清理(懒删除)
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**预期输出:**
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```
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🚀 开始测试 PostgresCacheAdapter...
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📝 测试 1: 基本读写
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✅ 写入并读取: { name: 'Alice', age: 25 }
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⏰ 测试 2: 过期机制
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写入缓存,2秒后过期...
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✅ 3秒后读取: null
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📦 测试 3: 批量操作
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✅ 批量写入并读取: [{ id: 1 }, { id: 2 }, { id: 3 }]
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🗑️ 测试 4: 删除操作
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✅ 删除后读取: null
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🔍 测试 5: has() 方法
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✅ 存在的key: true
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✅ 不存在的key: false
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🧹 测试 6: 过期缓存自动删除
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✅ 过期数据已自动删除: 是
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🎉 所有测试通过!
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```
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---
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### 2️⃣ 测试 PgBossQueue(任务队列)
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```bash
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npx ts-node src/tests/test-pgboss-queue.ts
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```
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**测试内容:**
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- ✅ 连接初始化(pg-boss.start())
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- ✅ 推送任务(push)
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- ✅ 处理任务(process)
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- ✅ 批量任务处理(3个并发)
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- ✅ 任务失败重试(模拟失败+重试)
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**预期输出:**
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```
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🚀 开始测试 PgBossQueue...
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📝 测试 1: 连接初始化
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✅ PgBoss连接成功
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📝 测试 2: 推送任务
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✅ 任务已推送,ID: abc-123-def
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📝 测试 3: 处理任务
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📥 收到任务: abc-123-def
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📦 任务数据: { message: 'Hello PgBoss', timestamp: 1234567890 }
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✅ 任务处理完成
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✅ 任务处理验证通过
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📝 测试 4: 批量任务处理
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✅ 已推送 3 个批量任务
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📥 处理批次 1
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📥 处理批次 2
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📥 处理批次 3
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✅ 已处理 3/3 个批量任务
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📝 测试 5: 任务失败重试
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📥 第 1 次尝试
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❌ 模拟失败,将重试...
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📥 第 2 次尝试
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✅ 第2次成功
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✅ 重试机制验证通过
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🎉 所有测试通过!
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```
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**⚠️ 注意事项:**
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- pg-boss 会在 `platform_schema` 下自动创建 `job` 和 `version` 表
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- 测试会等待任务异步处理,总耗时约 20 秒
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- 如果测试超时,检查数据库连接和 pg-boss 日志
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---
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### 3️⃣ 测试 CheckpointService(断点续传)
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```bash
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npx ts-node src/tests/test-checkpoint.ts
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```
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**测试内容:**
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- ✅ 保存断点(saveCheckpoint)
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- ✅ 加载断点(loadCheckpoint)
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- ✅ 模拟中断恢复(SAE实例重启场景)
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- ✅ 更新任务进度(processedBatches/currentIndex)
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- ✅ 清除断点(clearCheckpoint)
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- ✅ 完整流程模拟(10批次)
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**预期输出:**
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```
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🚀 开始测试 CheckpointService...
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📝 准备测试数据...
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✅ 创建测试任务 ID: task-123-abc
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📝 测试 1: 保存断点
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✅ 断点已保存
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📝 测试 2: 加载断点
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✅ 断点数据: {
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"currentBatchIndex": 3,
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"currentIndex": 350,
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"processedBatches": 3
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}
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✅ 断点加载验证通过
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📝 测试 3: 模拟中断恢复
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场景:任务在第5批次突然中断...
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⏸️ 保存中断点...
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🔄 模拟恢复...
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✅ 恢复到批次 5,索引 550
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✅ 已处理 5 批次
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📝 测试 4: 更新任务进度
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✅ 任务进度: {
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processedBatches: 5,
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currentBatchIndex: 5,
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currentIndex: 550,
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progress: '550/1000'
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}
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📝 测试 5: 清除断点
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✅ 清除后的断点: null
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✅ 断点清除验证通过
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📝 测试 6: 完整流程模拟(10批次)
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📦 处理批次 1/10 (0-100)
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📦 处理批次 2/10 (100-200)
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...
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📦 处理批次 10/10 (900-1000)
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✅ 最终进度: {
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processedBatches: 10,
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totalBatches: 10,
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processedItems: 1000,
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totalItems: 1000
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}
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🎉 所有测试通过!
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```
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**⚠️ 注意事项:**
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- 测试会创建临时的 `AslScreeningProject` 和 `AslScreeningTask`
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- 测试结束后会自动清理测试数据
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- 如果测试失败,手动清理:`DELETE FROM asl_schema.screening_tasks WHERE project_id = 'test-...'`
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---
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### 4️⃣ 测试任务拆分工具(纯逻辑,无数据库)
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```bash
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npx ts-node src/tests/test-task-split.ts
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```
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**测试内容:**
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- ✅ 基本拆分(100条数据,每批10条)
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- ✅ 不整除拆分(105条数据,最后一批5条)
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- ✅ 大数据拆分(1000条数据验证完整性)
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- ✅ 推荐批次大小(recommendChunkSize)
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- ✅ 边界情况(空数组、小数组、批次大小为1)
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- ✅ 实际场景模拟(1000篇文献筛选)
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**预期输出:**
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```
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🚀 开始测试任务拆分工具...
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📝 测试 1: 基本拆分
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总数据: 100 条
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每批次: 10 条
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拆分结果: 10 批次
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✅ 基本拆分通过
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📝 测试 2: 不整除拆分
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总数据: 105 条
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每批次: 10 条
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拆分结果: 11 批次
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最后1批: 5 条
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✅ 不整除拆分通过
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📝 测试 3: 大数据拆分(1000条)
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✅ 大数据拆分通过
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📝 测试 4: 推荐批次大小
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文献筛选-100篇:
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推荐批次: 50 条/批
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总批次数: 2 批
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文献筛选-1000篇:
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推荐批次: 50 条/批
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总批次数: 20 批
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...
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📝 测试 5: 边界情况
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空数组拆分: ✅
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小数组拆分: ✅
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批次大小为1: ✅
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✅ 边界情况通过
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📝 测试 6: 实际应用场景模拟
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场景:1000篇文献筛选
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总文献: 1000 篇
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推荐批次: 50 篇/批
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总批次数: 20 批
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预计总时间: 140.0 分钟 (假设每批7分钟)
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✅ 实际场景模拟通过
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🎉 所有测试通过!
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```
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---
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## 🔍 故障排查
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### 问题 1:`relation "platform_schema.app_cache" does not exist`
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**原因:** 数据库迁移未执行
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**解决:**
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```bash
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cd AIclinicalresearch/backend
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npx ts-node prisma/manual-migrations/run-migration.ts
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```
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---
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### 问题 2:`Module '"pg-boss"' has no default export`
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**原因:** pg-boss 未安装或版本不兼容
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**解决:**
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```bash
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npm install pg-boss@9.0.3 --save
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```
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---
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### 问题 3:`Property 'appCache' does not exist on type 'PrismaClient'`
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**原因:** Prisma Client 未重新生成
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**解决:**
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```bash
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npx prisma generate
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```
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---
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### 问题 4:测试卡住不动(PgBossQueue测试)
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**原因:** pg-boss 连接失败或任务处理超时
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**排查:**
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1. 检查数据库连接:`psql -U postgres -d ai_clinical`
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2. 检查 pg-boss 表:`\dt platform_schema.job`
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3. 查看 pg-boss 日志:检查终端输出
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---
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### 问题 5:`AslScreeningProject` 创建失败
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**原因:** 外键约束(userId 不存在)
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**解决:** 测试脚本会使用假的 UUID,如果外键约束严格,需要:
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```sql
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-- 临时禁用外键约束
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SET session_replication_role = 'replica';
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-- 运行测试...
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-- 恢复外键约束
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SET session_replication_role = 'origin';
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```
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---
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## 📊 测试结果总结
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### ✅ 全部通过
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如果所有 4 个测试脚本都输出 `🎉 所有测试通过!`,说明:
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1. ✅ **PostgresCacheAdapter** 可以正常缓存数据
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2. ✅ **PgBossQueue** 可以正常处理任务
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3. ✅ **CheckpointService** 可以正常保存/恢复断点
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4. ✅ **任务拆分工具** 逻辑正确
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**下一步:** 可以开始 **Phase 6**(改造 ASL 筛选服务)
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---
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### ❌ 部分失败
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如果某个测试失败,**不要继续 Phase 6**,先排查错误:
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1. 查看错误堆栈
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2. 参考上面的"故障排查"部分
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3. 如有疑问,查看测试脚本源码(都有详细注释)
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---
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## 📚 扩展阅读
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- **pg-boss 文档**: https://github.com/timgit/pg-boss/blob/master/docs/readme.md
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- **Prisma 客户端**: https://www.prisma.io/docs/concepts/components/prisma-client
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- **Postgres JSONB**: https://www.postgresql.org/docs/current/datatype-json.html
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---
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## 🎯 测试覆盖率
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| 模块 | 测试覆盖 | 状态 |
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|------|---------|------|
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| PostgresCacheAdapter | 100% (6/6 方法) | ✅ |
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| PgBossQueue | 80% (5/6 方法,未测试 failJob) | ✅ |
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| CheckpointService | 100% (3/3 方法) | ✅ |
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| TaskSplit Utils | 100% (2/2 函数) | ✅ |
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**总体覆盖率:95%** 🎉
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---
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**更新日期:** 2025-12-13
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**版本:** V1.0
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**作者:** AI Clinical Research Team
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Reference in New Issue
Block a user