599 lines
27 KiB
JavaScript
599 lines
27 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.AppLoader = void 0;
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const tslib_1 = require("tslib");
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const fs_1 = require("fs");
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const path_1 = require("path");
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const node_schedule_1 = require("node-schedule");
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const IntrinsicLogics_1 = require("oak-domain/lib/store/IntrinsicLogics");
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const lodash_1 = require("oak-domain/lib/utils/lodash");
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const uuid_1 = require("oak-domain/lib/utils/uuid");
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const types_1 = require("oak-domain/lib/types");
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const DbStore_1 = require("./DbStore");
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const index_1 = tslib_1.__importStar(require("oak-common-aspect/lib/index"));
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const assert_1 = tslib_1.__importDefault(require("assert"));
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const dependencyBuilder_1 = require("oak-domain/lib/compiler/dependencyBuilder");
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const DataSubscriber_1 = tslib_1.__importDefault(require("./cluster/DataSubscriber"));
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const env_1 = require("./cluster/env");
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const Synchronizer_1 = tslib_1.__importDefault(require("./Synchronizer"));
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const i18n_1 = tslib_1.__importDefault(require("oak-domain/lib/data/i18n"));
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const requirePrj_1 = tslib_1.__importDefault(require("./utils/requirePrj"));
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class AppLoader extends types_1.AppLoader {
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dbStore;
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aspectDict;
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externalDependencies;
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dataSubscriber;
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synchronizer;
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contextBuilder;
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nsSocket;
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watcherTimerId;
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scheduledJobs = {};
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internalErrorHandlers = new Array();
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regAllExceptionHandler() {
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const handlers = this.requireSth('lib/configuration/exception');
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if (Array.isArray(handlers)) {
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handlers.forEach((handler) => {
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console.log(`注册内部错误处理器: ${handler.name}`);
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this.registerInternalErrorHandler(handler);
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});
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}
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else {
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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');
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}
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}
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/**
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* 注册一个内部错误处理器
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* @param handler 内部错误处理器
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*/
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registerInternalErrorHandler(handler) {
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// 检查有没有名称重复
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if (this.internalErrorHandlers.find(h => h.name === handler.name)) {
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throw new Error(`内部错误处理器名称重复: ${handler.name}`);
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}
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this.internalErrorHandlers.push(handler);
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}
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/**
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* 发布内部错误事件给注册的处理器
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*/
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async publishInternalError(type, message, err) {
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const errorToPublish = (0, lodash_1.cloneDeep)(err);
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await Promise.all(this.internalErrorHandlers.map((handler) => {
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return new Promise(async (resolve) => {
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const ctx = await this.makeContext();
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try {
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console.log(`调用internalErrorHandler【${handler.name}】处理内部错误事件`);
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await handler.handle(ctx, type, message, errorToPublish);
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await ctx.commit();
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}
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catch (e) {
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console.error('执行internalErrorHandler时出错', e);
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await ctx.rollback();
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}
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finally {
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resolve();
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}
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});
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}));
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}
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requireSth(filePath) {
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return (0, requirePrj_1.default)(this.path, filePath, this.externalDependencies);
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}
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async makeContext(cxtStr, headers) {
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const context = this.contextBuilder(this.dbStore);
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await context.begin();
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try {
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await context.initialize(cxtStr ? JSON.parse(cxtStr) : undefined);
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}
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catch (err) {
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await context.rollback();
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throw err;
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}
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context.headers = headers;
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return context;
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}
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/**
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* 后台启动的configuration，统一放在这里读取
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*/
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getConfiguration() {
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const dbConfigFile = (0, path_1.join)(this.path, 'configuration', 'mysql.json');
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const dbConfig = require(dbConfigFile);
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const syncConfigFile = (0, path_1.join)(this.path, 'lib', 'configuration', 'sync.js');
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const syncConfigs = (0, fs_1.existsSync)(syncConfigFile) && require(syncConfigFile).default;
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return {
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dbConfig: dbConfig,
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syncConfig: syncConfigs,
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};
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}
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constructor(path, nsSubscribe, nsSocket, nsServer) {
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super(path);
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const { dbConfig } = this.getConfiguration();
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const { storageSchema } = require(`${path}/lib/oak-app-domain/Storage`);
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const depGraph = (0, dependencyBuilder_1.analyzeDepedency)(process.cwd());
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this.externalDependencies = depGraph.ascOrder;
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const { authDeduceRelationMap, selectFreeEntities, updateFreeDict } = this.requireSth('lib/configuration/relation');
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this.aspectDict = Object.assign({}, index_1.default, this.requireSth('lib/aspects/index'));
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this.dbStore = new DbStore_1.DbStore(storageSchema, () => this.contextBuilder(this.dbStore), dbConfig, authDeduceRelationMap, selectFreeEntities, updateFreeDict);
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if (nsSubscribe) {
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this.dataSubscriber = new DataSubscriber_1.default(nsSubscribe, nsServer);
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}
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this.nsSocket = nsSocket;
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const { BackendRuntimeContext } = require(`${path}/lib/context/BackendRuntimeContext`);
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const loaderThis = this;
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// 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
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class BackendRuntimeContextWrapper extends BackendRuntimeContext {
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constructor(store) {
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super(store);
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this.clusterInfo = (0, env_1.getClusterInfo)();
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}
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async commit() {
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const { eventOperationMap, opRecords } = this;
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await super.commit();
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// 注入在提交后向dataSubscribe发送订阅的事件
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if (loaderThis.dataSubscriber) {
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Object.keys(eventOperationMap).forEach((event) => {
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const ids = eventOperationMap[event];
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const opRecordsToPublish = opRecords.filter((ele) => !!ele.id && ids.includes(ele.id));
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if (opRecordsToPublish.length !== ids.length && process.env.NODE_ENV === 'development') {
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console.warn('要推送的事件的operation数量不足event事件中记录的数据，请检查是否有空operation被加入了推送事件');
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}
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loaderThis.dataSubscriber.publishEvent(event, opRecordsToPublish, this.getSubscriberId());
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});
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}
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}
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}
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;
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this.contextBuilder = (store) => new BackendRuntimeContextWrapper(store);
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}
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registerTrigger(trigger) {
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this.dbStore.registerTrigger(trigger);
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}
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initTriggers() {
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const triggers = this.requireSth('lib/triggers/index');
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const checkers = this.requireSth('lib/checkers/index');
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const { actionDefDict } = require(`${this.path}/lib/oak-app-domain/ActionDefDict`);
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const attrUpdateMatrix = this.requireSth('lib/configuration/attrUpdateMatrix');
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const { triggers: adTriggers, checkers: adCheckers } = (0, IntrinsicLogics_1.makeIntrinsicLogics)(this.dbStore.getSchema(), actionDefDict, attrUpdateMatrix);
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triggers.forEach((trigger) => this.registerTrigger(trigger));
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adTriggers.forEach((trigger) => this.registerTrigger(trigger));
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checkers.forEach((checker) => this.dbStore.registerChecker(checker));
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adCheckers.forEach((checker) => this.dbStore.registerChecker(checker));
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if (this.synchronizer) {
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// 同步数据到远端结点通过commit trigger来完成
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const syncTriggers = this.synchronizer.getSyncTriggers();
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syncTriggers.forEach((trigger) => this.registerTrigger(trigger));
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}
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}
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initSocket() {
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// todo
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const socketFilePath = (0, path_1.join)(this.path, 'lib/socket/index');
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if ((0, fs_1.existsSync)(socketFilePath)) {
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const { registerSocketEntry } = require(socketFilePath);
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(0, assert_1.default)(typeof registerSocketEntry === 'function');
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}
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}
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async mount(initialize) {
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const { path } = this;
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if (!initialize) {
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const { syncConfig: syncConfig } = this.getConfiguration();
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if (syncConfig) {
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this.synchronizer = new Synchronizer_1.default(syncConfig, this.dbStore.getSchema(), () => this.contextBuilder(this.dbStore));
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}
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this.initTriggers();
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this.initSocket();
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}
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const { importations, exportations } = require(`${path}/lib/ports/index`);
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(0, index_1.registerPorts)(importations || [], exportations || []);
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this.dbStore.connect();
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}
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async unmount() {
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if (this.watcherTimerId) {
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console.log('取消watcher...');
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clearTimeout(this.watcherTimerId);
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this.watcherTimerId = undefined;
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}
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for (const job in this.scheduledJobs) {
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console.log(`取消定时任务【${job}】...`);
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await this.scheduledJobs[job]?.cancel();
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delete this.scheduledJobs[job];
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}
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await (0, index_1.clearPorts)();
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await this.dbStore.disconnect();
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}
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async execAspect(name, headers, contextString, params) {
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// 从aspect过来的，不能有空cxtString，以防被误判为root
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const context = await this.makeContext(contextString || '{}', headers);
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const fn = this.aspectDict[name];
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try {
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if (!fn) {
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throw new Error(`不存在的接口名称: ${name}`);
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}
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const result = await fn(params, context);
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await context.refineOpRecords();
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const { opRecords } = context;
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const message = context.getMessage();
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await context.commit();
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return {
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opRecords,
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message,
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result,
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};
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}
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catch (err) {
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console.error(`执行aspect「${name}」出错`, err);
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await context.rollback();
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this.publishInternalError(`aspect`, `执行aspect「${name}」出错`, err);
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if (err instanceof types_1.OakException) {
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throw err;
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}
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if (err instanceof Error) {
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const exception = await context.tryDeduceException(err);
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if (exception) {
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throw exception;
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}
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}
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throw err;
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}
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}
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async initialize(ifExists) {
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await this.dbStore.initialize({ ifExists });
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const data = this.requireSth('lib/data/index');
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// oak-domain中只有i18n
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(0, assert_1.default)(data.i18n);
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data.i18n.push(...i18n_1.default);
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const context = this.contextBuilder(this.dbStore);
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context.openRootMode();
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for (const entity in data) {
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let rows = data[entity];
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if (rows.length > 0) {
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await context.begin();
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// 如果是static的对象，只要表中有数据就pass
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const [first] = await this.dbStore.select(entity, {
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data: {
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id: 1,
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},
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indexFrom: 0,
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count: 1,
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}, context, {});
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if (this.dbStore.getSchema()[entity].static) {
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if (first) {
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await context.commit();
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console.log(`data in ${entity} omitted, ${rows.length} rows passed`);
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continue;
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}
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}
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// 再插入所有的行
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try {
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const insertRows = async (idx) => {
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const rows2 = rows.slice(idx, 1000);
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if (rows2.length > 0) {
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await this.dbStore.operate(entity, {
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data: rows,
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action: 'create',
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}, context, {
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dontCollect: true,
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dontCreateOper: true,
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blockTrigger: true,
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});
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if (rows2.length === 1000) {
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await insertRows(idx + 1000);
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}
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}
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};
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await insertRows(0);
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await context.commit();
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console.log(`data in ${entity} initialized, ${rows.length} rows inserted`);
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}
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catch (err) {
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await context.rollback();
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console.error(`data on ${entity} initilization failed!`);
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throw err;
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}
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}
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}
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await this.dbStore.disconnect();
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}
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getStore() {
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return this.dbStore;
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}
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getEndpoints(prefix) {
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const endpoints = this.requireSth('lib/endpoints/index');
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const endPointRouters = [];
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const endPointMap = {};
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const transformEndpointItem = (key, item) => {
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const { name, method, fn, params: itemParams, type } = item;
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const k = `${key}-${name}-${method}`;
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const makeEndpoint = async () => {
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endPointMap[k] = true;
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let url = `${prefix}/${key}`;
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if (itemParams) {
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for (const p of itemParams) {
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url += `/:${p}`;
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}
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}
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endPointRouters.push([name, method, url, async (params, headers, req, body) => {
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if (type == "free") {
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const result = await fn(() => this.makeContext(undefined, headers), params, headers, req, body);
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return result;
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}
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else {
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const context = await this.makeContext(undefined, headers);
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try {
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const data = await fn(context, params, headers, req, body);
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await context.commit();
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return {
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data,
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};
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}
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catch (err) {
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await context.rollback();
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console.error(`endpoint「${key}」方法「${method}」出错`, err);
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throw err;
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}
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}
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}]);
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};
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if (endPointMap[k]) {
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if (process.env.NODE_ENV === 'development') {
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// 这里发现在热重载模式下会出现报错，debug跟到requireSth发现问题，怀疑是node的require机制导致的，先加个容错，在其他环境肯定不会出现
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console.warn(`endpoint中，url为「${key}」、名为${name}的方法「${method}」存在重复定义，将进行覆盖`);
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makeEndpoint();
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return;
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}
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throw new Error(`endpoint中，url为「${key}」、名为${name}的方法「${method}」存在重复定义`);
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}
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makeEndpoint();
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};
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if (endpoints) {
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for (const router in endpoints) {
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const item = endpoints[router];
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if (item instanceof Array) {
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item.forEach(ele => transformEndpointItem(router, ele));
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}
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else {
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transformEndpointItem(router, item);
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}
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}
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}
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if (this.synchronizer) {
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const syncEp = this.synchronizer.getSelfEndpoint();
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transformEndpointItem(syncEp.name, syncEp);
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}
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return endPointRouters;
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}
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operateInWatcher(entity, operation, context, singleton) {
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return this.dbStore.operate(entity, operation, context, {});
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}
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selectInWatcher(entity, selection, context, forUpdate, singleton) {
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return this.dbStore.select(entity, selection, context, {
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blockTrigger: true,
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forUpdate,
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});
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}
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async execWatcher(watcher) {
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const context = await this.makeContext();
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let result;
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try {
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if (watcher.hasOwnProperty('actionData')) {
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const { entity, action, filter, actionData, singleton } = watcher;
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const filter2 = typeof filter === 'function' ? await filter() : (0, lodash_1.cloneDeep)(filter);
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const data = typeof actionData === 'function' ? await (actionData)() : (0, lodash_1.cloneDeep)(actionData);
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result = await this.operateInWatcher(entity, {
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id: await (0, uuid_1.generateNewIdAsync)(),
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action: action,
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data,
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filter: filter2,
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}, context, singleton);
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}
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else {
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const { entity, projection, fn, filter, singleton, forUpdate } = watcher;
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const filter2 = typeof filter === 'function' ? await filter() : (0, lodash_1.cloneDeep)(filter);
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const projection2 = typeof projection === 'function' ? await projection() : (0, lodash_1.cloneDeep)(projection);
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const rows = await this.selectInWatcher(entity, {
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data: projection2,
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filter: filter2,
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}, context, forUpdate, singleton);
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if (rows.length > 0) {
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result = await fn(context, rows);
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}
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}
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await context.commit();
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return result;
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}
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catch (err) {
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if (err instanceof types_1.OakPartialSuccess) {
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await context.commit();
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}
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else {
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await context.rollback();
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}
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// 不能在这里publish，因为这个方法可能是在timer中调用，也可能是在routine中调用
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throw err;
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}
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}
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getCheckpointTs() {
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const now = Date.now();
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return process.env.NODE_ENV === 'development' ? now - 30 * 1000 : now - 120 * 1000;
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}
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checkpoint() {
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return this.dbStore.checkpoint(this.getCheckpointTs());
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}
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startWatchers() {
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const watchers = this.requireSth('lib/watchers/index');
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const { ActionDefDict } = require(`${this.path}/lib/oak-app-domain/ActionDefDict`);
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const { watchers: adWatchers } = (0, IntrinsicLogics_1.makeIntrinsicLogics)(this.dbStore.getSchema(), ActionDefDict);
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const totalWatchers = (watchers || []).concat(adWatchers);
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let count = 0;
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const execOne = async (watcher, start) => {
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try {
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const result = await this.execWatcher(watcher);
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if (result) {
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console.log(`执行watcher【${watcher.name}】成功，耗时【${Date.now() - start}】，结果是：`, result);
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}
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}
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catch (err) {
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console.error(`执行watcher【${watcher.name}】失败，耗时【${Date.now() - start}】，结果是：`, err);
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await this.publishInternalError(`watcher`, `执行watcher【${watcher.name}】失败`, err);
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}
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};
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const doWatchers = async () => {
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count++;
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const start = Date.now();
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for (const w of totalWatchers) {
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/**
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* todo 原来这里是所有的watcher并行，会产生死锁，先改成串行，后续再优化
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*/
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await execOne(w, start);
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}
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const duration = Date.now() - start;
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console.log(`第${count}次执行watchers，共执行${watchers.length}个，耗时${duration}毫秒`);
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try {
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await this.checkpoint();
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}
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catch (err) {
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console.error(`执行了checkpoint，发生错误：`, err);
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||
await this.publishInternalError(`checkpoint`, `执行checkpoint发生错误`, err);
|
||
}
|
||
this.watcherTimerId = setTimeout(() => doWatchers(), 120000);
|
||
};
|
||
doWatchers();
|
||
}
|
||
execFreeTimer(timer, context) {
|
||
const { timer: timerFn } = timer;
|
||
return timerFn(context);
|
||
}
|
||
startTimers() {
|
||
const timers = this.requireSth('lib/timers/index');
|
||
if (timers) {
|
||
for (const timer of timers) {
|
||
const { cron, name } = timer;
|
||
const job = (0, node_schedule_1.scheduleJob)(name, cron, async (date) => {
|
||
const start = Date.now();
|
||
console.log(`定时器【${name}】开始执行，时间是【${date.toLocaleTimeString()}】`);
|
||
if (timer.hasOwnProperty('entity')) {
|
||
try {
|
||
const result = await this.execWatcher(timer);
|
||
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【${name}】执行失败`, err);
|
||
}
|
||
}
|
||
else {
|
||
const context = await this.makeContext();
|
||
try {
|
||
const result = await this.execFreeTimer(timer, context);
|
||
if (result) {
|
||
console.log(`定时器【${name}】执行成功，耗时${Date.now() - start}毫秒，结果是【${result}】`);
|
||
}
|
||
await context.commit();
|
||
}
|
||
catch (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【${name}】执行失败`, err);
|
||
}
|
||
}
|
||
});
|
||
if (!job) {
|
||
// console.error(`定时器【${name}】创建失败，请检查cron表达式是否正确`);
|
||
throw new Error(`定时器【${name}】创建失败，请检查cron表达式是否正确`);
|
||
}
|
||
if (this.scheduledJobs[name]) {
|
||
// console.error(`定时器【${name}】已经存在，请检查定时器名称是否重复`);
|
||
throw new Error(`定时器【${name}】已经存在，请检查定时器名称是否重复`);
|
||
}
|
||
this.scheduledJobs[name] = job;
|
||
}
|
||
}
|
||
}
|
||
async execStartRoutines() {
|
||
const routines = this.requireSth('lib/routines/start') || [];
|
||
for (const routine of routines) {
|
||
console.log(`执行启动例程【${routine.name}】...`);
|
||
if (routine.hasOwnProperty('entity')) {
|
||
const start = Date.now();
|
||
try {
|
||
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${Date.now() - start}毫秒，错误是`, err);
|
||
await context.rollback();
|
||
throw err;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
async execStopRoutines() {
|
||
const routines = this.requireSth('lib/routines/stop') || [];
|
||
for (const routine of routines) {
|
||
console.log(`执行停止例程【${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;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
async execRoutine(routine) {
|
||
const context = await this.makeContext();
|
||
try {
|
||
const result = await routine(context);
|
||
await context.commit();
|
||
return result;
|
||
}
|
||
catch (e) {
|
||
await context.rollback();
|
||
throw e;
|
||
}
|
||
}
|
||
}
|
||
exports.AppLoader = AppLoader;
|