## 核心功能 ### 1. 数据库持久化支持 - 新增完整的 Persistence 模块 (api/persistence/) - 支持三种持久化策略: * StrategyDBOnly - 仅落库,不存证 * StrategyDBAndTrustlog - 既落库又存证(推荐) * StrategyTrustlogOnly - 仅存证,不落库 - 支持多数据库:PostgreSQL, MySQL, SQLite ### 2. Cursor + Retry 双层架构 - CursorWorker:第一道防线,快速发现新记录并尝试存证 * 增量扫描 operation 表(基于时间戳游标) * 默认 10 秒扫描间隔,批量处理 100 条 * 成功更新状态,失败转入重试队列 - RetryWorker:第二道防线,处理失败记录 * 指数退避重试(1m → 2m → 4m → 8m → 16m) * 默认最多重试 5 次 * 超限自动标记为死信 ### 3. 数据库表设计 - operation 表:存储操作记录,支持可空 IP 字段 - trustlog_cursor 表:Key-Value 模式,支持多游标 - trustlog_retry 表:重试队列,支持指数退避 ### 4. 异步最终一致性 - 应用调用立即返回(仅落库) - CursorWorker 异步扫描并存证 - RetryWorker 保障失败重试 - 完整的监控和死信处理机制 ## 修改文件 ### 核心代码(11个文件) - api/persistence/cursor_worker.go - Cursor 工作器(新增) - api/persistence/repository.go - 数据仓储层(新增) - api/persistence/schema.go - 数据库 Schema(新增) - api/persistence/strategy.go - 策略管理器(新增) - api/persistence/client.go - 客户端封装(新增) - api/persistence/retry_worker.go - Retry 工作器(新增) - api/persistence/config.go - 配置管理(新增) ### 修复内部包引用(5个文件) - api/adapter/publisher.go - 修复 internal 包引用 - api/adapter/subscriber.go - 修复 internal 包引用 - api/model/envelope.go - 修复 internal 包引用 - api/model/operation.go - 修复 internal 包引用 - api/model/record.go - 修复 internal 包引用 ### 单元测试(8个文件) - api/persistence/*_test.go - 完整的单元测试 - 测试覆盖率:28.5% - 测试通过率:49/49 (100%) ### SQL 脚本(4个文件) - api/persistence/sql/postgresql.sql - PostgreSQL 建表脚本 - api/persistence/sql/mysql.sql - MySQL 建表脚本 - api/persistence/sql/sqlite.sql - SQLite 建表脚本 - api/persistence/sql/test_data.sql - 测试数据 ### 文档(2个文件) - README.md - 更新主文档,新增 Persistence 使用指南 - api/persistence/README.md - 完整的 Persistence 文档 - api/persistence/sql/README.md - SQL 脚本说明 ## 技术亮点 1. **充分利用 Cursor 游标表** - 作为任务发现队列,非简单的位置记录 - Key-Value 模式,支持多游标并发扫描 - 时间戳天然有序,增量扫描高效 2. **双层保障机制** - Cursor:正常流程,快速处理 - Retry:异常流程,可靠重试 - 职责分离,监控清晰 3. **可空 IP 字段支持** - ClientIP 和 ServerIP 使用 *string 类型 - 支持 NULL 值,符合数据库最佳实践 - 使用 sql.NullString 正确处理 4. **完整的监控支持** - 未存证记录数监控 - Cursor 延迟监控 - 重试队列长度监控 - 死信队列监控 ## 测试结果 - ✅ 单元测试:49/49 通过 (100%) - ✅ 代码覆盖率:28.5% - ✅ 编译状态:无错误 - ✅ 支持数据库:PostgreSQL, MySQL, SQLite ## Breaking Changes 无破坏性变更。Persistence 模块作为可选功能,不影响现有代码。 ## 版本信息 - 版本:v2.1.0 - Go 版本要求:1.21+ - 更新日期:2025-12-23
184 lines
4.2 KiB
Go
184 lines
4.2 KiB
Go
package persistence
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import (
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"strings"
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"testing"
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)
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func TestTrustlogStatus(t *testing.T) {
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tests := []struct {
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name string
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status TrustlogStatus
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expected string
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}{
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{"not trustlogged", StatusNotTrustlogged, "NOT_TRUSTLOGGED"},
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{"trustlogged", StatusTrustlogged, "TRUSTLOGGED"},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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if string(tt.status) != tt.expected {
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t.Errorf("expected %s, got %s", tt.expected, string(tt.status))
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}
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})
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}
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}
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func TestRetryStatus(t *testing.T) {
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tests := []struct {
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name string
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status RetryStatus
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expected string
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}{
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{"pending", RetryStatusPending, "PENDING"},
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{"retrying", RetryStatusRetrying, "RETRYING"},
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{"dead letter", RetryStatusDeadLetter, "DEAD_LETTER"},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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if string(tt.status) != tt.expected {
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t.Errorf("expected %s, got %s", tt.expected, string(tt.status))
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}
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})
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}
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}
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func TestGetDialectDDL(t *testing.T) {
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tests := []struct {
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name string
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driverName string
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wantError bool
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checkFunc func(opDDL, cursorDDL, retryDDL string) error
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}{
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{
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name: "postgres",
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driverName: "postgres",
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wantError: false,
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checkFunc: func(opDDL, cursorDDL, retryDDL string) error {
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if !strings.Contains(opDDL, "CREATE TABLE IF NOT EXISTS operation") {
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t.Error("postgres DDL should contain operation table")
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}
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if !strings.Contains(cursorDDL, "CREATE TABLE IF NOT EXISTS trustlog_cursor") {
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t.Error("postgres DDL should contain cursor table")
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}
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if !strings.Contains(retryDDL, "CREATE TABLE IF NOT EXISTS trustlog_retry") {
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t.Error("postgres DDL should contain retry table")
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}
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return nil
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},
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},
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{
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name: "mysql",
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driverName: "mysql",
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wantError: false,
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checkFunc: func(opDDL, cursorDDL, retryDDL string) error {
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if !strings.Contains(opDDL, "ENGINE=InnoDB") {
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t.Error("mysql DDL should contain ENGINE=InnoDB")
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}
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if !strings.Contains(opDDL, "DEFAULT CHARSET=utf8mb4") {
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t.Error("mysql DDL should contain DEFAULT CHARSET=utf8mb4")
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}
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return nil
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},
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},
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{
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name: "sqlite",
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driverName: "sqlite3",
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wantError: false,
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checkFunc: func(opDDL, cursorDDL, retryDDL string) error {
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if !strings.Contains(opDDL, "CREATE TABLE IF NOT EXISTS operation") {
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t.Error("sqlite DDL should contain operation table")
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}
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return nil
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},
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},
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{
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name: "unknown driver uses generic SQL",
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driverName: "unknown",
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wantError: false,
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checkFunc: func(opDDL, cursorDDL, retryDDL string) error {
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if !strings.Contains(opDDL, "CREATE TABLE IF NOT EXISTS operation") {
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t.Error("generic DDL should contain operation table")
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}
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return nil
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},
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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opDDL, cursorDDL, retryDDL, err := GetDialectDDL(tt.driverName)
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if (err != nil) != tt.wantError {
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t.Errorf("GetDialectDDL() error = %v, wantError %v", err, tt.wantError)
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return
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}
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if !tt.wantError && tt.checkFunc != nil {
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if err := tt.checkFunc(opDDL, cursorDDL, retryDDL); err != nil {
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t.Errorf("DDL check failed: %v", err)
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}
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}
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})
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}
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}
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func TestOperationTableDDL(t *testing.T) {
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requiredFields := []string{
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"op_id",
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"op_actor",
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"doid",
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"producer_id",
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"request_body_hash",
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"response_body_hash",
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"sign",
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"op_source",
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"op_type",
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"do_prefix",
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"do_repository",
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"client_ip",
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"server_ip",
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"trustlog_status",
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"timestamp",
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}
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for _, field := range requiredFields {
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if !strings.Contains(OperationTableDDL, field) {
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t.Errorf("OperationTableDDL should contain field: %s", field)
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}
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}
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}
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func TestCursorTableDDL(t *testing.T) {
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requiredFields := []string{
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"cursor_key",
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"cursor_value",
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"last_updated_at",
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}
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for _, field := range requiredFields {
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if !strings.Contains(CursorTableDDL, field) {
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t.Errorf("CursorTableDDL should contain field: %s", field)
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}
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}
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}
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func TestRetryTableDDL(t *testing.T) {
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requiredFields := []string{
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"op_id",
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"retry_count",
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"retry_status",
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"last_retry_at",
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"next_retry_at",
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"error_message",
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}
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for _, field := range requiredFields {
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if !strings.Contains(RetryTableDDL, field) {
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t.Errorf("RetryTableDDL should contain field: %s", field)
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}
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}
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}
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