fix: 修复清理ExecutingMarks的bug

lib/AppLoader.d.ts

@@ -1,29 +1,47 @@
-/// <reference types="node" />
 import { EntityDict as BaseEntityDict } from 'oak-domain/lib/base-app-domain';
-import { AppLoader as GeneralAppLoader, Trigger, EntityDict, Watcher, OpRecord, FreeTimer, OperationResult } from "oak-domain/lib/types";
-import { DbStore } from "./DbStore";
+import { AppLoader as GeneralAppLoader, Trigger, EntityDict, Watcher, OpRecord, FreeTimer, OperationResult, BaseTimer } from "oak-domain/lib/types";
 import { BackendRuntimeContext } from 'oak-frontend-base/lib/context/BackendRuntimeContext';
 import { IncomingHttpHeaders, IncomingMessage } from 'http';
 import { Namespace } from 'socket.io';
 import DataSubscriber from './cluster/DataSubscriber';
 import Synchronizer from './Synchronizer';
 import { AsyncContext } from 'oak-domain/lib/store/AsyncRowStore';
+import { InternalErrorHandler } from './types';
+import { AppDbStore } from './DbStore';
 export declare class AppLoader<ED extends EntityDict & BaseEntityDict, Cxt extends BackendRuntimeContext<ED>> extends GeneralAppLoader<ED, Cxt> {
-    protected dbStore: DbStore<ED, Cxt>;
+    protected dbStore: AppDbStore<ED, Cxt>;
     private aspectDict;
     private externalDependencies;
     protected dataSubscriber?: DataSubscriber<ED, Cxt>;
     protected synchronizer?: Synchronizer<ED, Cxt>;
-    protected contextBuilder: (store: DbStore<ED, Cxt>) => Cxt;
+    protected contextBuilder: (store: AppDbStore<ED, Cxt>) => Cxt;
     private nsSocket?;
     private watcherTimerId?;
     private scheduledJobs;
+    private internalErrorHandlers;
+    private watcherExecutingData;
+    regAllExceptionHandler(): void;
+    /**
+     * 注册一个内部错误处理器
+     * @param handler 内部错误处理器
+     */
+    registerInternalErrorHandler(handler: InternalErrorHandler<ED, Cxt>): void;
+    /**
+     * 发布内部错误事件给注册的处理器
+     */
+    private publishInternalError;
     private requireSth;
     protected makeContext(cxtStr?: string, headers?: IncomingHttpHeaders): Promise<Cxt>;
     /**
-     * 后台启动的configuration，统一放在这里读取
+     *  获取数据库配置
+     * @returns  读取数据库配置
      */
-    private getConfiguration;
+    private getDbConfig;
+    /**
+     *  获取同步配置
+     * @returns  读取同步配置
+     */
+    private getSyncConfig;
     constructor(path: string, nsSubscribe?: Namespace, nsSocket?: Namespace, nsServer?: Namespace);
     protected registerTrigger(trigger: Trigger<ED, keyof ED, Cxt>): void;
     protected initTriggers(): void;
@@ -35,21 +53,47 @@ export declare class AppLoader<ED extends EntityDict & BaseEntityDict, Cxt exten
         result: any;
         message?: string;
     }>;
-    initialize(): Promise<void>;
-    getStore(): DbStore<ED, Cxt>;
+    initialize(ifExists?: 'drop' | 'omit' | 'dropIfNotStatic'): Promise<void>;
+    getStore(): AppDbStore<ED, Cxt>;
     getEndpoints(prefix: string): [string, "post" | "get" | "put" | "delete", string, (params: Record<string, string>, headers: IncomingHttpHeaders, req: IncomingMessage, body?: any) => Promise<{
-        headers?: Record<string, string | string[]> | undefined;
+        headers?: Record<string, string | string[]>;
         data: any;
-        statusCode?: number | undefined;
+        statusCode?: number;
     }>][];
     protected operateInWatcher<T extends keyof ED>(entity: T, operation: ED[T]['Update'], context: Cxt, singleton?: true): Promise<OperationResult<ED>>;
     protected selectInWatcher<T extends keyof ED>(entity: T, selection: ED[T]['Selection'], context: Cxt, forUpdate?: true, singleton?: true): Promise<Partial<ED[T]["Schema"]>[]>;
+    /**
+     *  检查某个数据是否正在被watcher执行
+     * @param name  watcher名称
+     * @param dataId  数据ID
+     * @returns  如果没有正在执行则返回true，否则返回false
+     */
+    private checkDataExecuting;
+    /**
+     * 过滤出未在执行中的数据行，并标记为执行中
+     * @returns [过滤后的行, 是否有行被跳过]
+     */
+    private filterAndMarkExecutingRows;
+    /**
+     * 清理执行标记
+     */
+    private cleanupExecutingMarks;
+    /**
+     * 解析 filter 和 projection（支持函数或静态值）
+     */
+    private resolveFilterAndProjection;
+    /**
+     * 执行 WB 类型 watcher 的查询操作
+     */
+    private selectForWBWatcher;
     protected execWatcher(watcher: Watcher<ED, keyof ED, Cxt>): Promise<OperationResult<ED> | undefined>;
     protected getCheckpointTs(): number;
     protected checkpoint(): Promise<number>;
     startWatchers(): void;
-    protected execFreeTimer(timer: FreeTimer<ED, Cxt>, context: Cxt): Promise<OperationResult<ED>> | undefined;
+    protected execBaseTimer(timer: BaseTimer<ED, Cxt>, context: Cxt): Promise<OperationResult<ED>> | undefined;
+    protected execFreeTimer(timer: FreeTimer<ED, Cxt>, contextBuilder: () => Promise<Cxt>): Promise<OperationResult<ED>> | undefined;
     startTimers(): void;
     execStartRoutines(): Promise<void>;
+    execStopRoutines(): Promise<void>;
     execRoutine(routine: <Cxt extends AsyncContext<ED>>(context: Cxt) => Promise<void>): Promise<void>;
 }

lib/AppLoader.js

@@ -9,7 +9,6 @@ const IntrinsicLogics_1 = require("oak-domain/lib/store/IntrinsicLogics");
 const lodash_1 = require("oak-domain/lib/utils/lodash");
 const uuid_1 = require("oak-domain/lib/utils/uuid");
 const types_1 = require("oak-domain/lib/types");
-const DbStore_1 = require("./DbStore");
 const index_1 = tslib_1.__importStar(require("oak-common-aspect/lib/index"));
 const assert_1 = tslib_1.__importDefault(require("assert"));
 const dependencyBuilder_1 = require("oak-domain/lib/compiler/dependencyBuilder");
@@ -18,6 +17,8 @@ const env_1 = require("./cluster/env");
 const Synchronizer_1 = tslib_1.__importDefault(require("./Synchronizer"));
 const i18n_1 = tslib_1.__importDefault(require("oak-domain/lib/data/i18n"));
 const requirePrj_1 = tslib_1.__importDefault(require("./utils/requirePrj"));
+const dbPriority_1 = require("./utils/dbPriority");
+const DbStore_1 = require("./DbStore");
 class AppLoader extends types_1.AppLoader {
     dbStore;
     aspectDict;
@@ -28,6 +29,53 @@ class AppLoader extends types_1.AppLoader {
     nsSocket;
     watcherTimerId;
     scheduledJobs = {};
+    internalErrorHandlers = new Array();
+    watcherExecutingData = new Map();
+    regAllExceptionHandler() {
+        const handlers = this.requireSth('lib/configuration/exception');
+        if (Array.isArray(handlers)) {
+            handlers.forEach((handler) => {
+                console.log(`注册内部错误处理器: ${handler.name}`);
+                this.registerInternalErrorHandler(handler);
+            });
+        }
+        else {
+            console.warn('lib/configuration/exception必须默认导出一个处理器数组，当前导出类型不正确，将忽略此配置');
+        }
+    }
+    /**
+     * 注册一个内部错误处理器
+     * @param handler 内部错误处理器
+     */
+    registerInternalErrorHandler(handler) {
+        // 检查有没有名称重复
+        if (this.internalErrorHandlers.find(h => h.name === handler.name)) {
+            throw new Error(`内部错误处理器名称重复: ${handler.name}`);
+        }
+        this.internalErrorHandlers.push(handler);
+    }
+    /**
+     * 发布内部错误事件给注册的处理器
+     */
+    async publishInternalError(type, message, err) {
+        await Promise.all(this.internalErrorHandlers.map((handler) => {
+            return new Promise(async (resolve) => {
+                const ctx = await this.makeContext();
+                try {
+                    console.log(`调用internalErrorHandler【${handler.name}】处理内部错误事件`);
+                    await handler.handle(ctx, type, message, err);
+                    await ctx.commit();
+                }
+                catch (e) {
+                    console.error('执行internalErrorHandler时出错', e);
+                    await ctx.rollback();
+                }
+                finally {
+                    resolve();
+                }
+            });
+        }));
+    }
     requireSth(filePath) {
         return (0, requirePrj_1.default)(this.path, filePath, this.externalDependencies);
     }
@@ -45,27 +93,30 @@ class AppLoader extends types_1.AppLoader {
         return context;
     }
     /**
-     * 后台启动的configuration，统一放在这里读取
+     *  获取数据库配置
+     * @returns  读取数据库配置
      */
-    getConfiguration() {
-        const dbConfigFile = (0, path_1.join)(this.path, 'configuration', 'mysql.json');
-        const dbConfig = require(dbConfigFile);
+    getDbConfig() {
+        return (0, dbPriority_1.getDbConfig)(this.path);
+    }
+    /**
+     *  获取同步配置
+     * @returns  读取同步配置
+     */
+    getSyncConfig() {
         const syncConfigFile = (0, path_1.join)(this.path, 'lib', 'configuration', 'sync.js');
         const syncConfigs = (0, fs_1.existsSync)(syncConfigFile) && require(syncConfigFile).default;
-        return {
-            dbConfig: dbConfig,
-            syncConfig: syncConfigs,
-        };
+        return syncConfigs;
     }
     constructor(path, nsSubscribe, nsSocket, nsServer) {
         super(path);
-        const { dbConfig } = this.getConfiguration();
+        const dbConfig = this.getDbConfig();
         const { storageSchema } = require(`${path}/lib/oak-app-domain/Storage`);
         const depGraph = (0, dependencyBuilder_1.analyzeDepedency)(process.cwd());
         this.externalDependencies = depGraph.ascOrder;
         const { authDeduceRelationMap, selectFreeEntities, updateFreeDict } = this.requireSth('lib/configuration/relation');
         this.aspectDict = Object.assign({}, index_1.default, this.requireSth('lib/aspects/index'));
-        this.dbStore = new DbStore_1.DbStore(storageSchema, () => this.contextBuilder(this.dbStore), dbConfig, authDeduceRelationMap, selectFreeEntities, updateFreeDict);
+        this.dbStore = (0, DbStore_1.createDbStore)(storageSchema, () => this.contextBuilder(this.dbStore), dbConfig, authDeduceRelationMap, selectFreeEntities, updateFreeDict);
         if (nsSubscribe) {
             this.dataSubscriber = new DataSubscriber_1.default(nsSubscribe, nsServer);
         }
@@ -127,7 +178,7 @@ class AppLoader extends types_1.AppLoader {
     async mount(initialize) {
         const { path } = this;
         if (!initialize) {
-            const { syncConfig: syncConfig } = this.getConfiguration();
+            const syncConfig = this.getSyncConfig();
             if (syncConfig) {
                 this.synchronizer = new Synchronizer_1.default(syncConfig, this.dbStore.getSchema(), () => this.contextBuilder(this.dbStore));
             }
@@ -172,7 +223,9 @@ class AppLoader extends types_1.AppLoader {
             };
         }
         catch (err) {
+            console.error(`执行aspect「${name}」出错`, err);
             await context.rollback();
+            this.publishInternalError(`aspect`, `执行aspect「${name}」出错`, err);
             if (err instanceof types_1.OakException) {
                 throw err;
             }
@@ -185,8 +238,8 @@ class AppLoader extends types_1.AppLoader {
             throw err;
         }
     }
-    async initialize() {
-        await this.dbStore.initialize({ ifExists: 'dropIfNotStatic' });
+    async initialize(ifExists) {
+        await this.dbStore.initialize({ ifExists });
         const data = this.requireSth('lib/data/index');
         // oak-domain中只有i18n
         (0, assert_1.default)(data.i18n);
@@ -241,7 +294,7 @@ class AppLoader extends types_1.AppLoader {
                 }
             }
         }
-        await this.dbStore.disconnect();
+        // await this.dbStore.disconnect(); // 不需要马上断开连接，在initialize后可能还会有操作，unmount时会断开
     }
     getStore() {
         return this.dbStore;
@@ -320,33 +373,99 @@ class AppLoader extends types_1.AppLoader {
             forUpdate,
         });
     }
+    /**
+     *  检查某个数据是否正在被watcher执行
+     * @param name  watcher名称
+     * @param dataId  数据ID
+     * @returns  如果没有正在执行则返回true，否则返回false
+     */
+    checkDataExecuting(name, dataId) {
+        let dataSet = this.watcherExecutingData.get(name);
+        if (!dataSet) {
+            dataSet = new Map();
+            this.watcherExecutingData.set(name, dataSet);
+        }
+        if (dataSet.has(dataId)) {
+            return false;
+        }
+        dataSet.set(dataId, true);
+        return true;
+    }
+    /**
+     * 过滤出未在执行中的数据行，并标记为执行中
+     * @returns [过滤后的行, 是否有行被跳过]
+     */
+    filterAndMarkExecutingRows(watcher, rows) {
+        if (watcher.exclusive !== true) {
+            // 不需要排他执行，直接返回所有行
+            return [rows, []];
+        }
+        const rowsWithoutExecuting = [];
+        const skipedRows = [];
+        const watcherName = watcher.name;
+        for (const row of rows) {
+            if (!row.id) {
+                console.error(`实例【${process.env.OAK_INSTANCE_ID || '单机'}】执行器【${watcherName}】获取的数据没有ID，跳过此数据的并发检查处理：`, row);
+                rowsWithoutExecuting.push(row);
+                continue;
+            }
+            if (this.checkDataExecuting(watcherName, row.id)) {
+                rowsWithoutExecuting.push(row);
+            }
+            else {
+                skipedRows.push(row);
+                console.warn(`实例【${process.env.OAK_INSTANCE_ID || '单机'}】执行器【${watcherName}】将跳过正在被执行的数据ID：【${row.id}】，请检查是否执行超时`);
+            }
+        }
+        return [rowsWithoutExecuting, skipedRows];
+    }
+    /**
+     * 清理执行标记
+     */
+    cleanupExecutingMarks(watcherName, rows) {
+        for (const row of rows) {
+            if (row.id) {
+                const dataSet = this.watcherExecutingData.get(watcherName);
+                if (dataSet) {
+                    dataSet.delete(row.id);
+                }
+            }
+        }
+    }
+    /**
+     * 解析 filter 和 projection（支持函数或静态值）
+     */
+    async resolveFilterAndProjection(filter, projection) {
+        const filter2 = typeof filter === 'function' ? await filter() : (0, lodash_1.cloneDeep)(filter);
+        const projection2 = typeof projection === 'function' ? await projection() : (0, lodash_1.cloneDeep)(projection);
+        return [filter2, projection2];
+    }
+    /**
+     * 执行 WB 类型 watcher 的查询操作
+     */
+    async selectForWBWatcher(watcher, context) {
+        const { entity, projection, filter, singleton, forUpdate } = watcher;
+        const [filter2, projection2] = await this.resolveFilterAndProjection(filter, projection);
+        return await this.selectInWatcher(entity, {
+            data: projection2,
+            filter: filter2,
+        }, context, forUpdate, singleton);
+    }
     async execWatcher(watcher) {
-        const context = await this.makeContext();
         let result;
-        try {
+        // BBWatcher：直接操作，无需查询
         if (watcher.hasOwnProperty('actionData')) {
+            const context = await this.makeContext();
+            try {
                 const { entity, action, filter, actionData, singleton } = watcher;
                 const filter2 = typeof filter === 'function' ? await filter() : (0, lodash_1.cloneDeep)(filter);
-                const data = typeof actionData === 'function' ? await (actionData)() : (0, lodash_1.cloneDeep)(actionData);
+                const data = typeof actionData === 'function' ? await actionData() : (0, lodash_1.cloneDeep)(actionData);
                 result = await this.operateInWatcher(entity, {
                     id: await (0, uuid_1.generateNewIdAsync)(),
                     action: action,
                     data,
                     filter: filter2,
                 }, context, singleton);
-            }
-            else {
-                const { entity, projection, fn, filter, singleton, forUpdate } = watcher;
-                const filter2 = typeof filter === 'function' ? await filter() : (0, lodash_1.cloneDeep)(filter);
-                const projection2 = typeof projection === 'function' ? await projection() : (0, lodash_1.cloneDeep)(projection);
-                const rows = await this.selectInWatcher(entity, {
-                    data: projection2,
-                    filter: filter2,
-                }, context, forUpdate, singleton);
-                if (rows.length > 0) {
-                    result = await fn(context, rows);
-                }
-            }
                 await context.commit();
                 return result;
             }
@@ -360,6 +479,51 @@ class AppLoader extends types_1.AppLoader {
                 throw err;
             }
         }
+        // WBFreeWatcher 和 WBWatcher：查询后执行
+        const isFreeType = watcher.hasOwnProperty('type') &&
+            watcher.type === 'free';
+        // 1. 执行查询（WBFreeWatcher 使用独立 context）
+        const selectContext = isFreeType ? await this.makeContext() : await this.makeContext();
+        const rows = await this.selectForWBWatcher(watcher, selectContext);
+        if (isFreeType) {
+            await selectContext.commit();
+        }
+        // 2. 并发检查：过滤出未在执行中的数据
+        const [rowsWithoutExecuting, hasSkipped] = this.filterAndMarkExecutingRows(watcher, rows);
+        if (rowsWithoutExecuting.length === 0) {
+            if (!isFreeType) {
+                await selectContext.commit();
+            }
+            this.cleanupExecutingMarks(watcher.name, hasSkipped);
+            return result;
+        }
+        // 3. 执行业务逻辑
+        try {
+            if (isFreeType) {
+                const { fn } = watcher;
+                result = await fn(() => this.makeContext(), rowsWithoutExecuting);
+            }
+            else {
+                const { fn } = watcher;
+                result = await fn(selectContext, rowsWithoutExecuting);
+                await selectContext.commit();
+            }
+            return result;
+        }
+        catch (err) {
+            // 清理执行标记
+            this.cleanupExecutingMarks(watcher.name, rows);
+            if (!isFreeType) {
+                if (err instanceof types_1.OakPartialSuccess) {
+                    await selectContext.commit();
+                }
+                else {
+                    await selectContext.rollback();
+                }
+            }
+            throw err;
+        }
+    }
     getCheckpointTs() {
         const now = Date.now();
         return process.env.NODE_ENV === 'development' ? now - 30 * 1000 : now - 120 * 1000;
@@ -373,7 +537,13 @@ class AppLoader extends types_1.AppLoader {
         const { watchers: adWatchers } = (0, IntrinsicLogics_1.makeIntrinsicLogics)(this.dbStore.getSchema(), ActionDefDict);
         const totalWatchers = (watchers || []).concat(adWatchers);
         let count = 0;
+        const skipOnceSet = new Set();
         const execOne = async (watcher, start) => {
+            if (skipOnceSet.has(watcher.name)) {
+                skipOnceSet.delete(watcher.name);
+                console.log(`跳过本次执行watcher【${watcher.name}】`);
+                return;
+            }
             try {
                 const result = await this.execWatcher(watcher);
                 if (result) {
@@ -382,6 +552,7 @@ class AppLoader extends types_1.AppLoader {
             }
             catch (err) {
                 console.error(`执行watcher【${watcher.name}】失败，耗时【${Date.now() - start}】，结果是：`, err);
+                await this.publishInternalError(`watcher`, `执行watcher【${watcher.name}】失败`, err);
             }
         };
         const doWatchers = async () => {
@@ -400,15 +571,26 @@ class AppLoader extends types_1.AppLoader {
             }
             catch (err) {
                 console.error(`执行了checkpoint，发生错误：`, err);
+                await this.publishInternalError(`checkpoint`, `执行checkpoint发生错误`, err);
             }
             this.watcherTimerId = setTimeout(() => doWatchers(), 120000);
         };
+        // 首次执行时，跳过所有lazy的watcher
+        for (const w of totalWatchers) {
+            if (w.lazy) {
+                skipOnceSet.add(w.name);
+            }
+        }
         doWatchers();
     }
-    execFreeTimer(timer, context) {
+    execBaseTimer(timer, context) {
         const { timer: timerFn } = timer;
         return timerFn(context);
     }
+    execFreeTimer(timer, contextBuilder) {
+        const { timer: timerFn } = timer;
+        return timerFn(contextBuilder);
+    }
     startTimers() {
         const timers = this.requireSth('lib/timers/index');
         if (timers) {
@@ -423,26 +605,39 @@ class AppLoader extends types_1.AppLoader {
                             console.log(`定时器【${name}】执行成功，耗时${Date.now() - start}毫秒】，结果是`, result);
                         }
                         catch (err) {
-                            console.warn(`定时器【${name}】执行失败，耗时${Date.now() - start}毫秒】，错误是`, err);
+                            console.error(`定时器【${name}】执行失败，耗时${Date.now() - start}毫秒】，错误是`, err);
+                            this.publishInternalError(`timer`, `定时器【${name}】执行失败`, err);
                         }
                     }
                     else {
+                        if (timer.hasOwnProperty('type') && timer.type === 'free') {
+                            try {
+                                const result = await this.execFreeTimer(timer, () => this.makeContext());
+                                console.log(`定时器【${name}】执行成功，耗时${Date.now() - start}毫秒，结果是`, result);
+                            }
+                            catch (err) {
+                                console.error(`定时器【${name}】执行失败，耗时${Date.now() - start}毫秒，错误是`, err);
+                                this.publishInternalError(`timer`, `定时器【${name}】执行失败`, err);
+                            }
+                            return;
+                        }
                         const context = await this.makeContext();
                         try {
-                            const result = await this.execFreeTimer(timer, context);
+                            const result = await this.execBaseTimer(timer, context);
                             if (result) {
-                                console.log(`定时器【${name}】执行成功，耗时${Date.now() - start}毫秒，结果是【${result}】`);
+                                console.log(`定时器【${name}】执行成功，耗时${Date.now() - start}毫秒，结果是`, result);
                             }
                             await context.commit();
                         }
                         catch (err) {
-                            console.warn(`定时器【${name}】执行失败，耗时${Date.now() - start}毫秒，错误是`, err);
+                            console.error(`定时器【${name}】执行失败，耗时${Date.now() - start}毫秒，错误是`, err);
                             if (err instanceof types_1.OakPartialSuccess) {
                                 await context.commit();
                             }
                             else {
                                 await context.rollback();
                             }
+                            this.publishInternalError(`timer`, `定时器【${name}】执行失败`, err);
                         }
                     }
                 });
@@ -461,6 +656,7 @@ class AppLoader extends types_1.AppLoader {
     async execStartRoutines() {
         const routines = this.requireSth('lib/routines/start') || [];
         for (const routine of routines) {
+            console.log(`执行启动例程【${routine.name}】...`);
             if (routine.hasOwnProperty('entity')) {
                 const start = Date.now();
                 try {
@@ -468,7 +664,7 @@ class AppLoader extends types_1.AppLoader {
                     console.log(`例程【${routine.name}】执行成功，耗时${Date.now() - start}毫秒，结果是`, result);
                 }
                 catch (err) {
-                    console.warn(`例程【${routine.name}】执行失败，耗时${Date.now() - start}毫秒，错误是`, err);
+                    console.error(`例程【${routine.name}】执行失败，耗时${Date.now() - start}毫秒，错误是`, err);
                     throw err;
                 }
             }
@@ -479,12 +675,48 @@ class AppLoader extends types_1.AppLoader {
                 try {
                     const result = await routineFn(context, {
                         socket: this.nsSocket,
+                        contextBuilder: () => this.makeContext(),
                     });
-                    console.log(`例程【${name}】执行成功，耗时${Date.now() - start}毫秒，结果是【${result}】`);
+                    console.log(`例程【${name}】执行成功，耗时${Date.now() - start}毫秒，结果是`, result);
                     await context.commit();
                 }
                 catch (err) {
-                    console.warn(`例程【${name}】执行失败，耗时${Date.now() - start}毫秒，错误是`, err);
+                    console.error(`例程【${name}】执行失败，耗时${Date.now() - start}毫秒，错误是`, err);
+                    await context.rollback();
+                    throw err;
+                }
+            }
+        }
+    }
+    async execStopRoutines() {
+        const routines = this.requireSth('lib/routines/stop') || [];
+        for (const routine of routines) {
+            console.log(`执行停止例程【${routine.name}】...`);
+            if (routine.hasOwnProperty('entity')) {
+                const start = Date.now();
+                try {
+                    const result = await this.execWatcher(routine);
+                    console.log(`例程【${routine.name}】执行成功，耗时${Date.now() - start}毫秒，结果是`, result);
+                }
+                catch (err) {
+                    console.error(`例程【${routine.name}】执行失败，耗时${Date.now() - start}毫秒，错误是`, err);
+                    throw err;
+                }
+            }
+            else {
+                const { name, routine: routineFn } = routine;
+                const context = await this.makeContext();
+                const start = Date.now();
+                try {
+                    const result = await routineFn(context, {
+                        socket: this.nsSocket,
+                        contextBuilder: () => this.makeContext(),
+                    });
+                    console.log(`例程【${name}】执行成功，耗时${Date.now() - start}毫秒，结果是`, result);
+                    await context.commit();
+                }
+                catch (err) {
+                    console.error(`例程【${name}】执行失败，耗时${Date.now() - start}毫秒，错误是`, err);
                     await context.rollback();
                     throw err;
                 }

lib/ClusterAppLoader.d.ts

@@ -1,5 +1,5 @@
 import { EntityDict as BaseEntityDict } from 'oak-domain/lib/base-app-domain';
-import { EntityDict, OperationResult, Trigger, Watcher, FreeTimer } from 'oak-domain/lib/types';
+import { EntityDict, OperationResult, Trigger, Watcher, FreeTimer, BaseTimer } from 'oak-domain/lib/types';
 import { BackendRuntimeContext } from 'oak-frontend-base/lib/context/BackendRuntimeContext';
 import { AppLoader } from './AppLoader';
 import { Namespace } from 'socket.io';
@@ -15,6 +15,7 @@ export declare class ClusterAppLoader<ED extends EntityDict & BaseEntityDict, Cx
     protected operateInWatcher<T extends keyof ED>(entity: T, operation: ED[T]['Update'], context: Cxt, singleton?: true): Promise<OperationResult<ED>>;
     protected selectInWatcher<T extends keyof ED>(entity: T, selection: ED[T]['Selection'], context: Cxt, forUpdate?: true, singleton?: true): Promise<Partial<ED[T]['Schema']>[]>;
     protected execWatcher(watcher: Watcher<ED, keyof ED, Cxt>): Promise<OperationResult<ED> | undefined>;
-    protected execFreeTimer(timer: FreeTimer<ED, Cxt>, context: Cxt): Promise<OperationResult<ED>> | undefined;
+    protected execBaseTimer(timer: BaseTimer<ED, Cxt>, context: Cxt): Promise<OperationResult<ED>> | undefined;
+    protected execFreeTimer(timer: FreeTimer<ED, Cxt>, contextBuilder: () => Promise<Cxt>): Promise<OperationResult<ED>> | undefined;
     protected checkpoint(): Promise<number>;
 }

lib/ClusterAppLoader.js

@@ -168,11 +168,17 @@ class ClusterAppLoader extends AppLoader_1.AppLoader {
         }
         return super.execWatcher(watcher);
     }
-    execFreeTimer(timer, context) {
+    execBaseTimer(timer, context) {
         if (timer.singleton && (0, env_1.getClusterInfo)().instanceId !== 0) {
             return;
         }
-        return super.execFreeTimer(timer, context);
+        return super.execBaseTimer(timer, context);
+    }
+    execFreeTimer(timer, contextBuilder) {
+        if (timer.singleton && (0, env_1.getClusterInfo)().instanceId !== 0) {
+            return;
+        }
+        return super.execFreeTimer(timer, contextBuilder);
     }
     async checkpoint() {
         const { instanceCount, instanceId } = (0, env_1.getClusterInfo)();

lib/DbStore.d.ts

@@ -1,22 +1,19 @@
-import { MysqlStore, MySqlSelectOption, MysqlOperateOption } from 'oak-db';
-import { EntityDict, StorageSchema, Trigger, Checker, SelectOption, SelectFreeEntities, UpdateFreeDict, AuthDeduceRelationMap, VolatileTrigger, OperateOption } from 'oak-domain/lib/types';
+import { DbConfiguration } from 'oak-db/src/types/configuration';
+import { EntityDict, StorageSchema, Trigger, Checker, SelectFreeEntities, UpdateFreeDict, AuthDeduceRelationMap, VolatileTrigger, OperateOption } from 'oak-domain/lib/types';
 import { EntityDict as BaseEntityDict } from 'oak-domain/lib/base-app-domain';
-import { MySQLConfiguration } from 'oak-db/lib/MySQL/types/Configuration';
 import { BackendRuntimeContext } from 'oak-frontend-base/lib/context/BackendRuntimeContext';
-import { AsyncRowStore, AsyncContext } from 'oak-domain/lib/store/AsyncRowStore';
-export declare class DbStore<ED extends EntityDict & BaseEntityDict, Cxt extends BackendRuntimeContext<ED>> extends MysqlStore<ED, Cxt> implements AsyncRowStore<ED, Cxt> {
-    private executor;
-    private relationAuth;
-    constructor(storageSchema: StorageSchema<ED>, contextBuilder: () => Cxt, mysqlConfiguration: MySQLConfiguration, authDeduceRelationMap: AuthDeduceRelationMap<ED>, selectFreeEntities?: SelectFreeEntities<ED>, updateFreeDict?: UpdateFreeDict<ED>, onVolatileTrigger?: <T extends keyof ED>(entity: T, trigger: VolatileTrigger<ED, T, Cxt>, ids: string[], cxtStr: string, option: OperateOption) => Promise<void>);
-    checkRelationAsync<T extends keyof ED, Cxt extends AsyncContext<ED>>(entity: T, operation: Omit<ED[T]["Operation"] | ED[T]["Selection"], "id">, context: Cxt): Promise<void>;
-    protected cascadeUpdateAsync<T extends keyof ED>(entity: T, operation: ED[T]['Operation'], context: AsyncContext<ED>, option: MysqlOperateOption): Promise<import("oak-domain/lib/types").OperationResult<ED>>;
-    operate<T extends keyof ED>(entity: T, operation: ED[T]['Operation'], context: Cxt, option: MysqlOperateOption): Promise<import("oak-domain/lib/types").OperationResult<ED>>;
-    select<T extends keyof ED>(entity: T, selection: ED[T]['Selection'], context: Cxt, option: MySqlSelectOption): Promise<Partial<ED[T]["Schema"]>[]>;
-    count<T extends keyof ED>(entity: T, selection: Pick<ED[T]['Selection'], 'filter' | 'count'>, context: Cxt, option: SelectOption): Promise<number>;
+import { DbTypeSymbol } from './utils/dbPriority';
+import { CascadeStore } from 'oak-domain/lib/store/CascadeStore';
+import { DbStore } from 'oak-db/lib/types/dbStore';
+export type TriggerStore<ED extends EntityDict & BaseEntityDict, Cxt extends BackendRuntimeContext<ED>> = {
     registerTrigger<T extends keyof ED>(trigger: Trigger<ED, T, Cxt>): void;
     registerChecker<T extends keyof ED>(checker: Checker<ED, T, Cxt>): void;
     setOnVolatileTrigger(onVolatileTrigger: <T extends keyof ED>(entity: T, trigger: VolatileTrigger<ED, T, Cxt>, ids: string[], cxtStr: string, option: OperateOption) => Promise<void>): void;
     execVolatileTrigger<T extends keyof ED>(entity: T, name: string, ids: string[], context: Cxt, option: OperateOption): Promise<void>;
     checkpoint(ts: number): Promise<number>;
     independentCheckPoint(name: string, ts: number, instanceCount?: number, instanceId?: number): Promise<number>;
-}
+};
+export type AppDbStore<ED extends EntityDict & BaseEntityDict, Cxt extends BackendRuntimeContext<ED>> = DbStore<ED, Cxt> & CascadeStore<ED> & TriggerStore<ED, Cxt>;
+export declare const createDbStore: <ED extends EntityDict & BaseEntityDict, Cxt extends BackendRuntimeContext<ED>>(storageSchema: StorageSchema<ED>, contextBuilder: () => Cxt, dbConfiguration: DbConfiguration & {
+    [DbTypeSymbol]?: string;
+}, authDeduceRelationMap: AuthDeduceRelationMap<ED>, selectFreeEntities?: SelectFreeEntities<ED>, updateFreeDict?: UpdateFreeDict<ED>, onVolatileTrigger?: <T extends keyof ED>(entity: T, trigger: VolatileTrigger<ED, T, Cxt>, ids: string[], cxtStr: string, option: OperateOption) => Promise<void>) => AppDbStore<ED, Cxt>;

lib/DbStore.js

@@ -1,14 +1,19 @@
 "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
-exports.DbStore = void 0;
-const oak_db_1 = require("oak-db");
+exports.createDbStore = void 0;
 const TriggerExecutor_1 = require("oak-domain/lib/store/TriggerExecutor");
 const RelationAuth_1 = require("oak-domain/lib/store/RelationAuth");
-class DbStore extends oak_db_1.MysqlStore {
+const dbPriority_1 = require("./utils/dbPriority");
+const createDbStore = (storageSchema, contextBuilder, dbConfiguration, authDeduceRelationMap, selectFreeEntities = [], updateFreeDict = {}, onVolatileTrigger) => {
+    // TODO: 这里的类型检查会过不去，因为ts不知道上层已经实现这个抽象类。
+    const BaseStoreClass = (0, dbPriority_1.getDbStoreClass)(dbConfiguration);
+    // 动态创建继承类
+    // @ts-ignore
+    class DynamicDbStore extends BaseStoreClass {
         executor;
         relationAuth;
-    constructor(storageSchema, contextBuilder, mysqlConfiguration, authDeduceRelationMap, selectFreeEntities = [], updateFreeDict = {}, onVolatileTrigger) {
-        super(storageSchema, mysqlConfiguration);
+        constructor() {
+            super(storageSchema, dbConfiguration);
             this.executor = new TriggerExecutor_1.TriggerExecutor(contextBuilder, undefined, onVolatileTrigger);
             this.relationAuth = new RelationAuth_1.RelationAuth(storageSchema, authDeduceRelationMap, selectFreeEntities, updateFreeDict);
         }
@@ -125,4 +130,6 @@ class DbStore extends oak_db_1.MysqlStore {
             return this.executor.independentCheckPoint(name, ts, instanceCount, instanceId);
         }
     }
-exports.DbStore = DbStore;
+    return new DynamicDbStore();
+};
+exports.createDbStore = createDbStore;

lib/Synchronizer.d.ts

@@ -27,7 +27,7 @@ export default class Synchronizer<ED extends EntityDict & BaseEntityDict, Cxt ex
      * 根据sync的定义，生成对应的 commit triggers
      * @returns
      */
-    getSyncTriggers(): VolatileTrigger<ED, keyof ED, Cxt>[];
+    getSyncTriggers(): Array<VolatileTrigger<ED, keyof ED, Cxt>>;
     getSelfEndpoint(): EndpointItem<ED, Cxt>;
     tryCreateSyncProcess(): void;
 }

lib/Synchronizer.js

@@ -114,7 +114,7 @@ class Synchronizer {
                             remoteEntityId: entityId,
                             data: queue.map((ele) => ({
                                 entity: ele.oper.targetEntity,
-                                rowIds: ele.oper.filter.id.$in,
+                                rowIds: ele.oper.filter.id.$in, // 暂时应该没什么用
                                 action: ele.oper.action,
                                 data: ele.oper.data,
                             })),

lib/cluster/env.js

@@ -1,6 +1,6 @@
 "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
-exports.getClusterInfo = void 0;
+exports.getClusterInfo = getClusterInfo;
 function getProcessEnvOption(option) {
     if (process.env.hasOwnProperty(option)) {
         return process.env[option];
@@ -54,4 +54,3 @@ const MyClusterInfo = initialize();
 function getClusterInfo() {
     return MyClusterInfo;
 }
-exports.getClusterInfo = getClusterInfo;

lib/routines/i18n.js

@@ -1,6 +1,7 @@
 "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
-exports.checkAndUpdateI18n = exports.checkI18n = void 0;
+exports.checkI18n = checkI18n;
+exports.checkAndUpdateI18n = checkAndUpdateI18n;
 const tslib_1 = require("tslib");
 const node_path_1 = require("node:path");
 const requirePrj_1 = tslib_1.__importDefault(require("../utils/requirePrj"));
@@ -66,7 +67,6 @@ async function checkAndUpdateI18nInner(context, onlyCheck) {
 function checkI18n(context) {
     return checkAndUpdateI18nInner(context, true);
 }
-exports.checkI18n = checkI18n;
 /**
  * 检查项目目录下的i18n数据和数据库中的差异，并更新
  * @param context
@@ -75,4 +75,3 @@ exports.checkI18n = checkI18n;
 function checkAndUpdateI18n(context) {
     return checkAndUpdateI18nInner(context);
 }
-exports.checkAndUpdateI18n = checkAndUpdateI18n;

lib/types/index.d.ts

@@ -0,0 +1,9 @@
+import { BaseEntityDict } from "oak-domain";
+import { AsyncContext } from "oak-domain/lib/store/AsyncRowStore";
+import { EntityDict } from "oak-domain/lib/types";
+export type InternalErrorType = 'aspect' | 'trigger' | 'watcher' | 'timer' | 'checkpoint';
+export type InternalErrorHandler<ED extends EntityDict & BaseEntityDict, Cxt extends AsyncContext<ED>> = {
+    name: string;
+    handle: (ctx: Cxt, type: InternalErrorType, message: string, err: Error) => Promise<void>;
+};
+export type ExceptionPublisher = (type: string, message: string, err: any) => Promise<void>;

lib/types/index.js

@@ -0,0 +1,2 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });

lib/utils/dbPriority.d.ts

@@ -0,0 +1,21 @@
+import { MysqlStore, PostgreSQLStore } from "oak-db";
+import { DbConfiguration } from "oak-db/src/types/configuration";
+import { EntityDict, StorageSchema } from 'oak-domain/lib/types';
+import { EntityDict as BaseEntityDict } from 'oak-domain/lib/base-app-domain';
+import { BackendRuntimeContext } from 'oak-frontend-base/lib/context/BackendRuntimeContext';
+import { CascadeStore } from "oak-domain/lib/store/CascadeStore";
+import { DbStore } from "oak-db/lib/types/dbStore";
+/**
+ * 数据库优先级列表，按顺序尝试获取配置文件
+ */
+export declare const dbList: {
+    mysql: typeof MysqlStore;
+    postgres: typeof PostgreSQLStore;
+};
+export declare const DbTypeSymbol: unique symbol;
+export declare const getDbConfig: (path: string) => DbConfiguration & {
+    [DbTypeSymbol]: string;
+};
+export declare const getDbStoreClass: <ED extends EntityDict & BaseEntityDict, Cxt extends BackendRuntimeContext<ED>>(config: {
+    [DbTypeSymbol]?: string;
+}) => new (schema: StorageSchema<ED>, config: DbConfiguration) => DbStore<ED, Cxt> & CascadeStore<ED>;

lib/utils/dbPriority.js

@@ -0,0 +1,55 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.getDbStoreClass = exports.getDbConfig = exports.DbTypeSymbol = exports.dbList = void 0;
+const oak_db_1 = require("oak-db");
+const path_1 = require("path");
+const fs_1 = require("fs");
+/**
+ * 数据库优先级列表，按顺序尝试获取配置文件
+ */
+exports.dbList = {
+    mysql: oak_db_1.MysqlStore,
+    postgres: oak_db_1.PostgreSQLStore
+};
+exports.DbTypeSymbol = Symbol.for('oak:backend:db:type');
+const getDbConfig = (path) => {
+    for (const db of Object.keys(exports.dbList)) {
+        try {
+            // eslint-disable-next-line @typescript-eslint/no-var-requires
+            let dbConfigFile = (0, path_1.join)(path, 'configuration', `${db}.${process.env.NODE_ENV}.json`);
+            if ((0, fs_1.existsSync)(dbConfigFile) === false) {
+                dbConfigFile = (0, path_1.join)(path, 'configuration', `${db}.json`);
+            }
+            if ((0, fs_1.existsSync)(dbConfigFile) === false) {
+                continue;
+            }
+            const config = require(dbConfigFile);
+            console.log(`使用${db}作为数据库`);
+            // 定义不可枚举的属性，避免被序列化
+            Object.defineProperty(config, exports.DbTypeSymbol, {
+                value: db,
+                enumerable: false,
+                writable: false,
+                configurable: false
+            });
+            return config;
+        }
+        catch (err) {
+            // do nothing
+        }
+    }
+    throw new Error(`没有找到数据库配置文件，请在configuration目录下添加任一配置文件：${Object.keys(exports.dbList).map(ele => `${ele}.json`).join('、')}`);
+};
+exports.getDbConfig = getDbConfig;
+const getDbStoreClass = (config) => {
+    const dbType = Object.getOwnPropertyDescriptor(config, exports.DbTypeSymbol)?.value;
+    if (!dbType) {
+        throw new Error('无法获取数据库类型，请确认是否存在数据库配置文件');
+    }
+    const DbStoreClass = exports.dbList[dbType.toLowerCase()];
+    if (!DbStoreClass) {
+        throw new Error(`不支持的数据库类型：${dbType}，请确认是否存在以下配置文件：${Object.keys(exports.dbList).map(ele => `${ele}.json`).join('、')}`);
+    }
+    return DbStoreClass;
+};
+exports.getDbStoreClass = getDbStoreClass;

lib/utils/requirePrj.js

@@ -1,5 +1,6 @@
 "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
+exports.default = requireSth;
 const fs_1 = require("fs");
 const lodash_1 = require("oak-domain/lib/utils/lodash");
 const path_1 = require("path");
@@ -20,4 +21,3 @@ function requireSth(prjPath, filePath, dependencies) {
     }
     return (0, lodash_1.mergeConcatMany)(sthExternal);
 }
-exports.default = requireSth;

package.json

@@ -1,6 +1,6 @@
 {
     "name": "oak-backend-base",
-    "version": "4.1.21",
+    "version": "4.1.28",
     "description": "oak-backend-base",
     "main": "lib/index",
     "author": {
@@ -21,10 +21,10 @@
         "mysql": "^2.18.1",
         "mysql2": "^2.3.3",
         "node-schedule": "^2.1.0",
-        "oak-common-aspect": "^3.0.5",
-        "oak-db": "^3.3.8",
-        "oak-domain": "^5.1.27",
-        "oak-frontend-base": "^5.3.34",
+        "oak-common-aspect": "file:../oak-common-aspect",
+        "oak-db": "file:../oak-db",
+        "oak-domain": "file:../oak-domain",
+        "oak-frontend-base": "file:../oak-frontend-base",
         "socket.io": "^4.8.1",
         "socket.io-client": "^4.7.2",
         "uuid": "^8.3.2"

src/AppLoader.ts

@@ -5,10 +5,8 @@ import { makeIntrinsicLogics } from "oak-domain/lib/store/IntrinsicLogics";
 import { cloneDeep, mergeConcatMany, omit } from 'oak-domain/lib/utils/lodash';
 import { EntityDict as BaseEntityDict } from 'oak-domain/lib/base-app-domain';
 import { generateNewIdAsync } from 'oak-domain/lib/utils/uuid';
-import { AppLoader as GeneralAppLoader, Trigger, Checker, Aspect, CreateOpResult, SyncConfig, EntityDict, Watcher, BBWatcher, WBWatcher, OpRecord, Routine, FreeRoutine, Timer, FreeTimer, StorageSchema, OperationResult, OakPartialSuccess, OakException } from "oak-domain/lib/types";
-import { DbStore } from "./DbStore";
+import { AppLoader as GeneralAppLoader, Trigger, Checker, Aspect, CreateOpResult, SyncConfig, EntityDict, Watcher, BBWatcher, WBWatcher, OpRecord, Routine, FreeRoutine, Timer, FreeTimer, StorageSchema, OperationResult, OakPartialSuccess, OakException, BaseTimer, WBFreeWatcher } from "oak-domain/lib/types";
 import generalAspectDict, { clearPorts, registerPorts } from 'oak-common-aspect/lib/index';
-import { MySQLConfiguration } from 'oak-db/lib/MySQL/types/Configuration';
 import { BackendRuntimeContext } from 'oak-frontend-base/lib/context/BackendRuntimeContext';
 import { Endpoint, EndpointItem } from 'oak-domain/lib/types/Endpoint';
 import assert from 'assert';
@@ -22,17 +20,72 @@ import Synchronizer from './Synchronizer';
 import { AsyncContext } from 'oak-domain/lib/store/AsyncRowStore';
 import domainI18nData from 'oak-domain/lib/data/i18n';
 import requireSth from './utils/requirePrj';
+import { InternalErrorHandler, InternalErrorType } from './types';
+import { getDbConfig } from './utils/dbPriority';
+import { createDbStore, AppDbStore } from './DbStore';
 
 export class AppLoader<ED extends EntityDict & BaseEntityDict, Cxt extends BackendRuntimeContext<ED>> extends GeneralAppLoader<ED, Cxt> {
-    protected dbStore: DbStore<ED, Cxt>;
+    protected dbStore: AppDbStore<ED, Cxt>;
     private aspectDict: Record<string, Aspect<ED, Cxt>>;
     private externalDependencies: string[];
     protected dataSubscriber?: DataSubscriber<ED, Cxt>;
     protected synchronizer?: Synchronizer<ED, Cxt>;
-    protected contextBuilder: (store: DbStore<ED, Cxt>) => Cxt;
+    protected contextBuilder: (store: AppDbStore<ED, Cxt>) => Cxt;
     private nsSocket?: Namespace;
     private watcherTimerId?: NodeJS.Timeout;
     private scheduledJobs: Record<string, Job> = {};
+    private internalErrorHandlers = new Array<InternalErrorHandler<ED, Cxt>>();
+
+    private watcherExecutingData: Map<string, Map<string, true>> = new Map();
+
+    public regAllExceptionHandler() {
+        const handlers = this.requireSth('lib/configuration/exception') as Array<InternalErrorHandler<ED, Cxt>> | InternalErrorHandler<ED, Cxt>;
+        if (Array.isArray(handlers)) {
+            handlers.forEach(
+                (handler) => {
+                    console.log(`注册内部错误处理器: ${handler.name}`);
+                    this.registerInternalErrorHandler(handler);
+                }
+            );
+        } else {
+            console.warn('lib/configuration/exception必须默认导出一个处理器数组，当前导出类型不正确，将忽略此配置');
+        }
+    }
+
+    /**
+     * 注册一个内部错误处理器
+     * @param handler 内部错误处理器
+     */
+    public registerInternalErrorHandler(handler: InternalErrorHandler<ED, Cxt>) {
+        // 检查有没有名称重复
+        if (this.internalErrorHandlers.find(h => h.name === handler.name)) {
+            throw new Error(`内部错误处理器名称重复: ${handler.name}`);
+        }
+        this.internalErrorHandlers.push(handler);
+    }
+
+    /**
+     * 发布内部错误事件给注册的处理器
+     */
+    private async publishInternalError(type: InternalErrorType, message: string, err: any) {
+        await Promise.all(this.internalErrorHandlers.map(
+            (handler) => {
+                return new Promise<void>(async (resolve) => {
+                    const ctx = await this.makeContext();
+                    try {
+                        console.log(`调用internalErrorHandler【${handler.name}】处理内部错误事件`);
+                        await handler.handle(ctx, type, message, err);
+                        await ctx.commit()
+                    } catch (e) {
+                        console.error('执行internalErrorHandler时出错', e);
+                        await ctx.rollback();
+                    } finally {
+                        resolve();
+                    }
+                });
+            }
+        ));
+    }
 
     private requireSth(filePath: string): any {
         return requireSth(this.path, filePath, this.externalDependencies);
@@ -54,29 +107,39 @@ export class AppLoader<ED extends EntityDict & BaseEntityDict, Cxt extends Backe
     }
 
     /**
-     * 后台启动的configuration，统一放在这里读取
+     *  获取数据库配置
+     * @returns  读取数据库配置
      */
-    private getConfiguration() {
-        const dbConfigFile = join(this.path, 'configuration', 'mysql.json');
-        const dbConfig = require(dbConfigFile);
+    private getDbConfig() {
+        return getDbConfig(this.path);
+    }
+
+    /**
+     *  获取同步配置
+     * @returns  读取同步配置
+     */
+    private getSyncConfig() {
         const syncConfigFile = join(this.path, 'lib', 'configuration', 'sync.js');
         const syncConfigs = existsSync(syncConfigFile) && require(syncConfigFile).default;
-
-        return {
-            dbConfig: dbConfig as MySQLConfiguration,
-            syncConfig: syncConfigs as SyncConfig<ED, Cxt> | undefined,
-        };
+        return syncConfigs as SyncConfig<ED, Cxt> | undefined;
     }
 
     constructor(path: string, nsSubscribe?: Namespace, nsSocket?: Namespace, nsServer?: Namespace) {
         super(path);
-        const { dbConfig } = this.getConfiguration();
+        const dbConfig = this.getDbConfig();
         const { storageSchema } = require(`${path}/lib/oak-app-domain/Storage`);
         const depGraph = analyzeDepedency(process.cwd());
         this.externalDependencies = depGraph.ascOrder;
         const { authDeduceRelationMap, selectFreeEntities, updateFreeDict } = this.requireSth('lib/configuration/relation')!;
         this.aspectDict = Object.assign({}, generalAspectDict, this.requireSth('lib/aspects/index')!);
-        this.dbStore = new DbStore<ED, Cxt>(storageSchema, () => this.contextBuilder(this.dbStore), dbConfig, authDeduceRelationMap, selectFreeEntities, updateFreeDict);
+        this.dbStore = createDbStore<ED, Cxt>(
+            storageSchema,
+            () => this.contextBuilder(this.dbStore),
+            dbConfig,
+            authDeduceRelationMap,
+            selectFreeEntities,
+            updateFreeDict,
+        );
         if (nsSubscribe) {
             this.dataSubscriber = new DataSubscriber(nsSubscribe, nsServer);
         }
@@ -87,7 +150,7 @@ export class AppLoader<ED extends EntityDict & BaseEntityDict, Cxt extends Backe
 
         // 需要重载context上的构造和commit方法，否则程序中执行context.restartToExecute这样的方法中，new一个context出来是无法正确执行的
         class BackendRuntimeContextWrapper extends BackendRuntimeContext {
-            constructor(store: DbStore<ED, Cxt>) {
+            constructor(store: AppDbStore<ED, Cxt>) {
                 super(store);
                 this.clusterInfo = getClusterInfo();
             }
@@ -167,7 +230,7 @@ export class AppLoader<ED extends EntityDict & BaseEntityDict, Cxt extends Backe
     async mount(initialize?: true) {
         const { path } = this;
         if (!initialize) {
-            const { syncConfig: syncConfig } = this.getConfiguration();
+            const syncConfig = this.getSyncConfig();
 
             if (syncConfig) {
                 this.synchronizer = new Synchronizer(syncConfig, this.dbStore.getSchema(), () => this.contextBuilder(this.dbStore));
@@ -221,7 +284,9 @@ export class AppLoader<ED extends EntityDict & BaseEntityDict, Cxt extends Backe
             };
         }
         catch (err) {
+            console.error(`执行aspect「${name}」出错`, err);
             await context.rollback();
+            this.publishInternalError(`aspect`, `执行aspect「${name}」出错`, err)
             if (err instanceof OakException) {
                 throw err;
             }
@@ -235,8 +300,8 @@ export class AppLoader<ED extends EntityDict & BaseEntityDict, Cxt extends Backe
         }
     }
 
-    async initialize() {
-        await this.dbStore.initialize({ ifExists: 'dropIfNotStatic' });
+    async initialize(ifExists?: 'drop' | 'omit' | 'dropIfNotStatic') {
+        await this.dbStore.initialize({ ifExists });
 
         const data = this.requireSth('lib/data/index')!;
         // oak-domain中只有i18n
@@ -293,10 +358,10 @@ export class AppLoader<ED extends EntityDict & BaseEntityDict, Cxt extends Backe
                 }
             }
         }
-        await this.dbStore.disconnect();
+        // await this.dbStore.disconnect(); // 不需要马上断开连接，在initialize后可能还会有操作，unmount时会断开
     }
 
-    getStore(): DbStore<ED, Cxt> {
+    getStore(): AppDbStore<ED, Cxt> {
         return this.dbStore;
     }
 
@@ -388,48 +453,192 @@ export class AppLoader<ED extends EntityDict & BaseEntityDict, Cxt extends Backe
         })
     }
 
+    /**
+     *  检查某个数据是否正在被watcher执行
+     * @param name  watcher名称
+     * @param dataId  数据ID
+     * @returns  如果没有正在执行则返回true，否则返回false
+     */
+    private checkDataExecuting(name: string, dataId: string): boolean {
+        let dataSet = this.watcherExecutingData.get(name);
+        if (!dataSet) {
+            dataSet = new Map<string, true>();
+            this.watcherExecutingData.set(name, dataSet);
+        }
+        if (dataSet.has(dataId)) {
+            return false;
+        }
+        dataSet.set(dataId, true);
+        return true;
+    }
+
+    /**
+     * 过滤出未在执行中的数据行，并标记为执行中
+     * @returns [过滤后的行, 是否有行被跳过]
+     */
+    private filterAndMarkExecutingRows<T extends keyof ED>(
+        watcher: Watcher<ED, T, Cxt>,
+        rows: Partial<ED[T]['Schema']>[]
+    ): [Partial<ED[T]['Schema']>[], Partial<ED[T]['Schema']>[]] {
+        if (watcher.exclusive !== true) {
+            // 不需要排他执行，直接返回所有行
+            return [rows, []];
+        }
+
+        const rowsWithoutExecuting: Partial<ED[T]['Schema']>[] = [];
+        const skipedRows: Partial<ED[T]['Schema']>[] = [];
+        const watcherName = watcher.name;
+
+        for (const row of rows) {
+            if (!row.id) {
+                console.error(`实例【${process.env.OAK_INSTANCE_ID || '单机'}】执行器【${watcherName}】获取的数据没有ID，跳过此数据的并发检查处理：`, row);
+                rowsWithoutExecuting.push(row);
+                continue;
+            }
+
+            if (this.checkDataExecuting(watcherName, row.id)) {
+                rowsWithoutExecuting.push(row);
+            } else {
+                skipedRows.push(row);
+                console.warn(`实例【${process.env.OAK_INSTANCE_ID || '单机'}】执行器【${watcherName}】将跳过正在被执行的数据ID：【${row.id}】，请检查是否执行超时`);
+            }
+        }
+
+        return [rowsWithoutExecuting, skipedRows];
+    }
+
+    /**
+     * 清理执行标记
+     */
+    private cleanupExecutingMarks<T extends keyof ED>(
+        watcherName: string,
+        rows: Partial<ED[T]['Schema']>[]
+    ) {
+        for (const row of rows) {
+            if (row.id) {
+                const dataSet = this.watcherExecutingData.get(watcherName);
+                if (dataSet) {
+                    dataSet.delete(row.id);
+                }
+            }
+        }
+    }
+
+    /**
+     * 解析 filter 和 projection（支持函数或静态值）
+     */
+    private async resolveFilterAndProjection<T extends ED[keyof ED]['Filter']>(
+        filter: T | (() => Promise<T>),
+        projection: any | (() => Promise<any>)
+    ): Promise<[T, any]> {
+        const filter2 = typeof filter === 'function' ? await filter() : cloneDeep(filter);
+        const projection2 = typeof projection === 'function' ? await projection() : cloneDeep(projection);
+        return [filter2, projection2];
+    }
+
+    /**
+     * 执行 WB 类型 watcher 的查询操作
+     */
+    private async selectForWBWatcher<T extends keyof ED>(
+        watcher: WBWatcher<ED, T, Cxt> | WBFreeWatcher<ED, T, Cxt>,
+        context: Cxt
+    ) {
+        const { entity, projection, filter, singleton, forUpdate } = watcher;
+        const [filter2, projection2] = await this.resolveFilterAndProjection(filter, projection);
+
+        return await this.selectInWatcher(entity, {
+            data: projection2,
+            filter: filter2,
+        }, context, forUpdate, singleton);
+    }
+
     protected async execWatcher(watcher: Watcher<ED, keyof ED, Cxt>) {
-        const context = await this.makeContext();
         let result: OperationResult<ED> | undefined;
-        try {
+
+        // BBWatcher：直接操作，无需查询
         if (watcher.hasOwnProperty('actionData')) {
+            const context = await this.makeContext();
+            try {
                 const { entity, action, filter, actionData, singleton } = <BBWatcher<ED, keyof ED>>watcher;
                 const filter2 = typeof filter === 'function' ? await filter() : cloneDeep(filter);
-                const data = typeof actionData === 'function' ? await (actionData)() : cloneDeep(actionData);
+                const data = typeof actionData === 'function' ? await actionData() : cloneDeep(actionData);
+
                 result = await this.operateInWatcher(entity, {
                     id: await generateNewIdAsync(),
                     action: action as string,
                     data,
                     filter: filter2,
                 }, context, singleton);
-            }
-            else {
-                const { entity, projection, fn, filter, singleton, forUpdate } = <WBWatcher<ED, keyof ED, Cxt>>watcher;
-                const filter2 = typeof filter === 'function' ? await filter() : cloneDeep(filter);
-                const projection2 = typeof projection === 'function' ? await projection() : cloneDeep(projection);
-                const rows = await this.selectInWatcher(entity, {
-                    data: projection2,
-                    filter: filter2,
-                }, context, forUpdate, singleton);
 
-                if (rows.length > 0) {
-                    result = await fn(context, rows);
-                }
-            }
                 await context.commit();
                 return result;
-        }
-        catch (err) {
+            } catch (err) {
                 if (err instanceof OakPartialSuccess) {
                     await context.commit();
-            }
-            else {
+                } else {
                     await context.rollback();
                 }
                 throw err;
             }
         }
 
+        // WBFreeWatcher 和 WBWatcher：查询后执行
+        const isFreeType = watcher.hasOwnProperty('type') &&
+            (watcher as WBFreeWatcher<ED, keyof ED, Cxt>).type === 'free';
+
+        // 1. 执行查询（WBFreeWatcher 使用独立 context）
+        const selectContext = isFreeType ? await this.makeContext() : await this.makeContext();
+        const rows = await this.selectForWBWatcher(
+            watcher as WBWatcher<ED, keyof ED, Cxt> | WBFreeWatcher<ED, keyof ED, Cxt>,
+            selectContext
+        );
+
+        if (isFreeType) {
+            await selectContext.commit();
+        }
+
+        // 2. 并发检查：过滤出未在执行中的数据
+        const [rowsWithoutExecuting, hasSkipped] = this.filterAndMarkExecutingRows(
+            watcher,
+            rows
+        );
+
+        if (rowsWithoutExecuting.length === 0) {
+            if (!isFreeType) {
+                await selectContext.commit();
+            }
+
+            this.cleanupExecutingMarks(watcher.name, hasSkipped);
+            return result;
+        }
+
+        // 3. 执行业务逻辑
+        try {
+            if (isFreeType) {
+                const { fn } = watcher as WBFreeWatcher<ED, keyof ED, Cxt>;
+                result = await fn(() => this.makeContext(), rowsWithoutExecuting);
+            } else {
+                const { fn } = watcher as WBWatcher<ED, keyof ED, Cxt>;
+                result = await fn(selectContext, rowsWithoutExecuting);
+                await selectContext.commit();
+            }
+
+            return result;
+        } catch (err) {
+            // 清理执行标记
+            this.cleanupExecutingMarks(watcher.name, rows);
+
+            if (!isFreeType) {
+                if (err instanceof OakPartialSuccess) {
+                    await selectContext.commit();
+                } else {
+                    await selectContext.rollback();
+                }
+            }
+            throw err;
+        }
+    }
+
     protected getCheckpointTs() {
         const now = Date.now();
         return process.env.NODE_ENV === 'development' ? now - 30 * 1000 : now - 120 * 1000;
@@ -447,7 +656,13 @@ export class AppLoader<ED extends EntityDict & BaseEntityDict, Cxt extends Backe
         const totalWatchers = (<Watcher<ED, keyof ED, Cxt>[]>watchers || []).concat(adWatchers);
 
         let count = 0;
+        const skipOnceSet = new Set<string>();
         const execOne = async (watcher: Watcher<ED, keyof ED, Cxt>, start: number) => {
+            if (skipOnceSet.has(watcher.name)) {
+                skipOnceSet.delete(watcher.name);
+                console.log(`跳过本次执行watcher【${watcher.name}】`);
+                return;
+            }
             try {
                 const result = await this.execWatcher(watcher);
                 if (result) {
@@ -456,6 +671,7 @@ export class AppLoader<ED extends EntityDict & BaseEntityDict, Cxt extends Backe
             }
             catch (err) {
                 console.error(`执行watcher【${watcher.name}】失败，耗时【${Date.now() - start}】，结果是：`, err);
+                await this.publishInternalError(`watcher`, `执行watcher【${watcher.name}】失败`, err);
             }
         };
         const doWatchers = async () => {
@@ -475,18 +691,32 @@ export class AppLoader<ED extends EntityDict & BaseEntityDict, Cxt extends Backe
             }
             catch (err) {
                 console.error(`执行了checkpoint，发生错误：`, err);
+                await this.publishInternalError(`checkpoint`, `执行checkpoint发生错误`, err);
             }
 
             this.watcherTimerId = setTimeout(() => doWatchers(), 120000);
         };
+
+        // 首次执行时，跳过所有lazy的watcher
+        for (const w of totalWatchers) {
+            if (w.lazy) {
+                skipOnceSet.add(w.name);
+            }
+        }
+
         doWatchers();
     }
 
-    protected execFreeTimer(timer: FreeTimer<ED, Cxt>, context: Cxt): Promise<OperationResult<ED>> | undefined {
-        const { timer: timerFn } = timer as FreeTimer<ED, Cxt>;
+    protected execBaseTimer(timer: BaseTimer<ED, Cxt>, context: Cxt): Promise<OperationResult<ED>> | undefined {
+        const { timer: timerFn } = timer as BaseTimer<ED, Cxt>;
         return timerFn(context);
     }
 
+    protected execFreeTimer(timer: FreeTimer<ED, Cxt>, contextBuilder: () => Promise<Cxt>): Promise<OperationResult<ED>> | undefined {
+        const { timer: timerFn } = timer as FreeTimer<ED, Cxt>;
+        return timerFn(contextBuilder);
+    }
+
     startTimers() {
         const timers: Timer<ED, keyof ED, Cxt>[] = this.requireSth('lib/timers/index');
         if (timers) {
@@ -502,26 +732,38 @@ export class AppLoader<ED extends EntityDict & BaseEntityDict, Cxt extends Backe
                             console.log(`定时器【${name}】执行成功，耗时${Date.now() - start}毫秒】，结果是`, result);
                         }
                         catch (err) {
-                            console.warn(`定时器【${name}】执行失败，耗时${Date.now() - start}毫秒】，错误是`, err);
+                            console.error(`定时器【${name}】执行失败，耗时${Date.now() - start}毫秒】，错误是`, err);
+                            this.publishInternalError(`timer`, `定时器【${name}】执行失败`, err);
                         }
                     }
                     else {
+                        if (timer.hasOwnProperty('type') && (timer as FreeTimer<ED, Cxt>).type === 'free') {
+                            try {
+                                const result = await this.execFreeTimer(timer as FreeTimer<ED, Cxt>, () => this.makeContext());
+                                console.log(`定时器【${name}】执行成功，耗时${Date.now() - start}毫秒，结果是`, result);
+                            } catch (err) {
+                                console.error(`定时器【${name}】执行失败，耗时${Date.now() - start}毫秒，错误是`, err);
+                                this.publishInternalError(`timer`, `定时器【${name}】执行失败`, err);
+                            }
+                            return;
+                        }
                         const context = await this.makeContext();
                         try {
-                            const result = await this.execFreeTimer(timer as FreeTimer<ED, Cxt>, context);
+                            const result = await this.execBaseTimer(timer as BaseTimer<ED, Cxt>, context);
                             if (result) {
-                                console.log(`定时器【${name}】执行成功，耗时${Date.now() - start}毫秒，结果是【${result}】`);
+                                console.log(`定时器【${name}】执行成功，耗时${Date.now() - start}毫秒，结果是`, result);
                             }
                             await context.commit();
                         }
                         catch (err) {
-                            console.warn(`定时器【${name}】执行失败，耗时${Date.now() - start}毫秒，错误是`, err);
+                            console.error(`定时器【${name}】执行失败，耗时${Date.now() - start}毫秒，错误是`, err);
                             if (err instanceof OakPartialSuccess) {
                                 await context.commit();
                             }
                             else {
                                 await context.rollback();
                             }
+                            this.publishInternalError(`timer`, `定时器【${name}】执行失败`, err);
                         }
                     }
                 })
@@ -541,6 +783,7 @@ export class AppLoader<ED extends EntityDict & BaseEntityDict, Cxt extends Backe
     async execStartRoutines() {
         const routines: Routine<ED, keyof ED, Cxt>[] = this.requireSth('lib/routines/start') || [];
         for (const routine of routines) {
+            console.log(`执行启动例程【${routine.name}】...`);
             if (routine.hasOwnProperty('entity')) {
                 const start = Date.now();
                 try {
@@ -548,7 +791,7 @@ export class AppLoader<ED extends EntityDict & BaseEntityDict, Cxt extends Backe
                     console.log(`例程【${routine.name}】执行成功，耗时${Date.now() - start}毫秒，结果是`, result);
                 }
                 catch (err) {
-                    console.warn(`例程【${routine.name}】执行失败，耗时${Date.now() - start}毫秒，错误是`, err);
+                    console.error(`例程【${routine.name}】执行失败，耗时${Date.now() - start}毫秒，错误是`, err);
                     throw err;
                 }
             }
@@ -560,12 +803,50 @@ export class AppLoader<ED extends EntityDict & BaseEntityDict, Cxt extends Backe
                 try {
                     const result = await routineFn(context, {
                         socket: this.nsSocket!,
+                        contextBuilder: () => this.makeContext(),
                     });
-                    console.log(`例程【${name}】执行成功，耗时${Date.now() - start}毫秒，结果是【${result}】`);
+                    console.log(`例程【${name}】执行成功，耗时${Date.now() - start}毫秒，结果是`, result);
                     await context.commit();
                 }
                 catch (err) {
-                    console.warn(`例程【${name}】执行失败，耗时${Date.now() - start}毫秒，错误是`, err);
+                    console.error(`例程【${name}】执行失败，耗时${Date.now() - start}毫秒，错误是`, err);
+                    await context.rollback();
+                    throw err;
+                }
+            }
+        }
+    }
+
+    async execStopRoutines() {
+        const routines: Routine<ED, keyof ED, Cxt>[] = this.requireSth('lib/routines/stop') || [];
+        for (const routine of routines) {
+            console.log(`执行停止例程【${routine.name}】...`);
+            if (routine.hasOwnProperty('entity')) {
+                const start = Date.now();
+                try {
+                    const result = await this.execWatcher(routine as Watcher<ED, keyof ED, Cxt>);
+                    console.log(`例程【${routine.name}】执行成功，耗时${Date.now() - start}毫秒，结果是`, result);
+                }
+                catch (err) {
+                    console.error(`例程【${routine.name}】执行失败，耗时${Date.now() - start}毫秒，错误是`, err);
+                    throw err;
+                }
+            }
+            else {
+                const { name, routine: routineFn } = routine as FreeRoutine<ED, Cxt>;
+                const context = await this.makeContext();
+
+                const start = Date.now();
+                try {
+                    const result = await routineFn(context, {
+                        socket: this.nsSocket!,
+                        contextBuilder: () => this.makeContext(),
+                    });
+                    console.log(`例程【${name}】执行成功，耗时${Date.now() - start}毫秒，结果是`, result);
+                    await context.commit();
+                }
+                catch (err) {
+                    console.error(`例程【${name}】执行失败，耗时${Date.now() - start}毫秒，错误是`, err);
                     await context.rollback();
                     throw err;
                 }

src/ClusterAppLoader.ts

@@ -1,7 +1,7 @@
 import { groupBy } from 'oak-domain/lib/utils/lodash';
 import { combineFilters } from 'oak-domain/lib/store/filter';
 import { EntityDict as BaseEntityDict } from 'oak-domain/lib/base-app-domain';
-import { EntityDict, OperationResult, VolatileTrigger, Trigger, OperateOption, OakPartialSuccess, Watcher, FreeTimer } from 'oak-domain/lib/types';
+import { EntityDict, OperationResult, VolatileTrigger, Trigger, OperateOption, OakPartialSuccess, Watcher, FreeTimer, BaseTimer } from 'oak-domain/lib/types';
 import { BackendRuntimeContext } from 'oak-frontend-base/lib/context/BackendRuntimeContext';
 import { getClusterInfo } from './cluster/env';
 
@@ -184,11 +184,18 @@ export class ClusterAppLoader<ED extends EntityDict & BaseEntityDict, Cxt extend
         return super.execWatcher(watcher);
     }
 
-    protected execFreeTimer(timer: FreeTimer<ED, Cxt>, context: Cxt) {
+    protected execBaseTimer(timer: BaseTimer<ED, Cxt>, context: Cxt) {
         if (timer.singleton && getClusterInfo().instanceId !== 0) {
             return;
         }
-        return super.execFreeTimer(timer, context);
+        return super.execBaseTimer(timer, context);
+    }
+
+    protected execFreeTimer(timer: FreeTimer<ED, Cxt>, contextBuilder: () => Promise<Cxt>) {
+        if (timer.singleton && getClusterInfo().instanceId !== 0) {
+            return;
+        }
+        return super.execFreeTimer(timer, contextBuilder);
     }
 
     protected async checkpoint() {

src/DbStore.ts

@@ -1,26 +1,62 @@
-import { MysqlStore, MySqlSelectOption, MysqlOperateOption } from 'oak-db';
+import { DbConfiguration } from 'oak-db/src/types/configuration';
+import { MySqlSelectOption, MysqlOperateOption } from 'oak-db';
 import { EntityDict, StorageSchema, Trigger, Checker, SelectOption, SelectFreeEntities, UpdateFreeDict, AuthDeduceRelationMap, VolatileTrigger, OperateOption } from 'oak-domain/lib/types';
 import { EntityDict as BaseEntityDict } from 'oak-domain/lib/base-app-domain';
 import { TriggerExecutor } from 'oak-domain/lib/store/TriggerExecutor';
-import { MySQLConfiguration, } from 'oak-db/lib/MySQL/types/Configuration';
 import { BackendRuntimeContext } from 'oak-frontend-base/lib/context/BackendRuntimeContext';
-import { AsyncRowStore, AsyncContext } from 'oak-domain/lib/store/AsyncRowStore';
+import { AsyncContext } from 'oak-domain/lib/store/AsyncRowStore';
 import { RelationAuth } from 'oak-domain/lib/store/RelationAuth';
+import { DbTypeSymbol, getDbStoreClass } from './utils/dbPriority';
+import { CascadeStore } from 'oak-domain/lib/store/CascadeStore';
+import { DbStore } from 'oak-db/lib/types/dbStore';
 
+export type TriggerStore<ED extends EntityDict & BaseEntityDict, Cxt extends BackendRuntimeContext<ED>> = {
+    registerTrigger<T extends keyof ED>(trigger: Trigger<ED, T, Cxt>): void;
+    registerChecker<T extends keyof ED>(checker: Checker<ED, T, Cxt>): void;
+    setOnVolatileTrigger(
+        onVolatileTrigger: <T extends keyof ED>(
+            entity: T,
+            trigger: VolatileTrigger<ED, T, Cxt>,
+            ids: string[],
+            cxtStr: string,
+            option: OperateOption) => Promise<void>
+    ): void;
+    execVolatileTrigger<T extends keyof ED>(
+        entity: T,
+        name: string,
+        ids: string[],
+        context: Cxt,
+        option: OperateOption
+    ): Promise<void>;
+    checkpoint(ts: number): Promise<number>;
+    independentCheckPoint(name: string, ts: number, instanceCount?: number, instanceId?: number): Promise<number>;
+}
 
-export class DbStore<ED extends EntityDict & BaseEntityDict, Cxt extends BackendRuntimeContext<ED>> extends MysqlStore<ED, Cxt> implements AsyncRowStore<ED, Cxt> {
-    private executor: TriggerExecutor<ED, Cxt>;
-    private relationAuth: RelationAuth<ED>;
+export type AppDbStore<ED extends EntityDict & BaseEntityDict, Cxt extends BackendRuntimeContext<ED>> = DbStore<ED, Cxt> & CascadeStore<ED> & TriggerStore<ED, Cxt>;
 
-    constructor(
+export const createDbStore = <ED extends EntityDict & BaseEntityDict, Cxt extends BackendRuntimeContext<ED>>(
     storageSchema: StorageSchema<ED>,
     contextBuilder: () => Cxt,
-        mysqlConfiguration: MySQLConfiguration,
+    dbConfiguration: DbConfiguration & {
+        [DbTypeSymbol]?: string;
+    },
     authDeduceRelationMap: AuthDeduceRelationMap<ED>,
     selectFreeEntities: SelectFreeEntities<ED> = [],
     updateFreeDict: UpdateFreeDict<ED> = {},
-        onVolatileTrigger?: <T extends keyof ED>(entity: T, trigger: VolatileTrigger<ED, T, Cxt>, ids: string[], cxtStr: string, option: OperateOption) => Promise<void>) {
-        super(storageSchema, mysqlConfiguration);
+    onVolatileTrigger?: <T extends keyof ED>(entity: T, trigger: VolatileTrigger<ED, T, Cxt>, ids: string[], cxtStr: string, option: OperateOption) => Promise<void>
+): AppDbStore<ED, Cxt> => {
+
+    // TODO: 这里的类型检查会过不去，因为ts不知道上层已经实现这个抽象类。
+    const BaseStoreClass = getDbStoreClass<ED, Cxt>(dbConfiguration)
+    
+    // 动态创建继承类
+    // @ts-ignore
+    class DynamicDbStore extends BaseStoreClass implements TriggerStore<ED, Cxt> {
+        private executor: TriggerExecutor<ED, Cxt>;
+        private relationAuth: RelationAuth<ED>;
+
+        constructor() {
+            super(storageSchema, dbConfiguration);
             this.executor = new TriggerExecutor(contextBuilder, undefined, onVolatileTrigger);
             this.relationAuth = new RelationAuth(storageSchema, authDeduceRelationMap, selectFreeEntities, updateFreeDict);
         }
@@ -175,3 +211,6 @@ export class DbStore<ED extends EntityDict & BaseEntityDict, Cxt extends Backend
             return this.executor.independentCheckPoint(name, ts, instanceCount, instanceId);
         }
     }
+
+    return new DynamicDbStore() as AppDbStore<ED, Cxt>;
+};

src/types/index.ts

@@ -0,0 +1,10 @@
+import { BaseEntityDict } from "oak-domain";
+import { AsyncContext } from "oak-domain/lib/store/AsyncRowStore";
+import { EntityDict, OakException } from "oak-domain/lib/types";
+
+export type InternalErrorType = 'aspect' | 'trigger' | 'watcher' | 'timer' | 'checkpoint'
+export type InternalErrorHandler<ED extends EntityDict & BaseEntityDict, Cxt extends AsyncContext<ED>> = {
+    name: string;
+    handle: (ctx: Cxt, type: InternalErrorType, message:string, err: Error) => Promise<void>;
+}
+export type ExceptionPublisher = (type: string, message: string, err: any) => Promise<void>;

src/utils/dbPriority.ts

@@ -0,0 +1,69 @@
+import { MysqlStore, PostgreSQLStore } from "oak-db";
+import { DbConfiguration } from "oak-db/src/types/configuration";
+import { AsyncContext, AsyncRowStore } from "oak-domain/lib/store/AsyncRowStore";
+import { join } from "path";
+import { EntityDict, StorageSchema, Trigger, Checker, SelectOption, SelectFreeEntities, UpdateFreeDict, AuthDeduceRelationMap, VolatileTrigger, OperateOption, RowStore } from 'oak-domain/lib/types';
+import { EntityDict as BaseEntityDict } from 'oak-domain/lib/base-app-domain';
+import { BackendRuntimeContext } from 'oak-frontend-base/lib/context/BackendRuntimeContext';
+import { CascadeStore } from "oak-domain/lib/store/CascadeStore";
+import { existsSync } from "fs";
+import { DbStore } from "oak-db/lib/types/dbStore";
+
+/**
+ * 数据库优先级列表，按顺序尝试获取配置文件
+ */
+export const dbList = {
+    mysql: MysqlStore,
+    postgres: PostgreSQLStore
+}
+
+export const DbTypeSymbol = Symbol.for('oak:backend:db:type')
+
+export const getDbConfig = (path: string): DbConfiguration & {
+    [DbTypeSymbol]: string;
+} => {
+    for (const db of Object.keys(dbList)) {
+        try {
+            // eslint-disable-next-line @typescript-eslint/no-var-requires
+            let dbConfigFile = join(path, 'configuration', `${db}.${process.env.NODE_ENV}.json`);
+            if (existsSync(dbConfigFile) === false) {
+                dbConfigFile = join(path, 'configuration', `${db}.json`);
+            }
+
+            if (existsSync(dbConfigFile) === false) {
+                continue;
+            }
+
+            const config = require(dbConfigFile);
+            console.log(`使用${db}作为数据库`);
+            // 定义不可枚举的属性，避免被序列化
+            Object.defineProperty(config, DbTypeSymbol, {
+                value: db,
+                enumerable: false,
+                writable: false,
+                configurable: false
+            });
+            return config;
+        }
+        catch (err) {
+            // do nothing
+        }
+    }
+
+    throw new Error(`没有找到数据库配置文件，请在configuration目录下添加任一配置文件：${Object.keys(dbList).map(ele => `${ele}.json`).join('、')}`);
+}
+
+export const getDbStoreClass = <ED extends EntityDict & BaseEntityDict, Cxt extends BackendRuntimeContext<ED>>
+    (config: {
+        [DbTypeSymbol]?: string;
+    }) => {
+    const dbType = Object.getOwnPropertyDescriptor(config, DbTypeSymbol)?.value;
+    if (!dbType) {
+        throw new Error('无法获取数据库类型，请确认是否存在数据库配置文件');
+    }
+    const DbStoreClass = dbList[dbType.toLowerCase() as keyof typeof dbList];
+    if (!DbStoreClass) {
+        throw new Error(`不支持的数据库类型：${dbType}，请确认是否存在以下配置文件：${Object.keys(dbList).map(ele => `${ele}.json`).join('、')}`);
+    }
+    return DbStoreClass as new (schema: StorageSchema<ED>, config: DbConfiguration) => DbStore<ED, Cxt> & CascadeStore<ED>;
+}