qq
98 lines
4.4 KiB
JavaScript
98 lines
4.4 KiB
JavaScript
"use strict";
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var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
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var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
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if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
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else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
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return c > 3 && r && Object.defineProperty(target, key, r), r;
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};
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var __metadata = (this && this.__metadata) || function (k, v) {
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if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
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};
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var __param = (this && this.__param) || function (paramIndex, decorator) {
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return function (target, key) { decorator(target, key, paramIndex); }
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.SystemConfigService = void 0;
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const common_1 = require("@nestjs/common");
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const typeorm_1 = require("@nestjs/typeorm");
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const system_config_model_1 = require("../../../model/system_config.model");
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const typeorm_2 = require("typeorm");
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const cache_manager_1 = require("@nestjs/cache-manager");
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const common_2 = require("@nestjs/common");
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const lock_service_1 = require("./lock.service");
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const SYSTEM_CONFIG_KEY = 'system:config';
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const LOAD_LOCK_KEY = 'system:config:load_lock';
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let SystemConfigService = class SystemConfigService {
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systemConfigRepos;
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cacheManager;
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distributedLockService;
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loadPromises = new Map();
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constructor(systemConfigRepos, cacheManager, distributedLockService) {
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this.systemConfigRepos = systemConfigRepos;
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this.cacheManager = cacheManager;
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this.distributedLockService = distributedLockService;
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}
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async readConfig() {
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const cached = await this.cacheManager.get(SYSTEM_CONFIG_KEY);
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if (cached) {
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return cached;
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}
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if (this.loadPromises.has(LOAD_LOCK_KEY)) {
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return this.loadPromises.get(LOAD_LOCK_KEY);
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}
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const promise = this.distributedLockService.withLock(LOAD_LOCK_KEY, async () => {
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const retry = await this.cacheManager.get(SYSTEM_CONFIG_KEY);
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if (retry) {
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return retry;
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}
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const config = await this.systemConfigRepos
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.createQueryBuilder('c')
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.where({ id: (0, typeorm_2.MoreThan)(0) })
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.getOneOrFail();
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await this.cacheManager.set(SYSTEM_CONFIG_KEY, config);
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return config;
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}, {
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ttl: 3000,
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maxRetries: 3,
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retryDelay: 200,
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fallback: async () => {
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for (let i = 0; i < 10; i++) {
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const cached = await this.cacheManager.get(SYSTEM_CONFIG_KEY);
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if (cached) {
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return cached;
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}
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await new Promise((resolve) => setTimeout(resolve, 200));
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}
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const config = await this.systemConfigRepos
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.createQueryBuilder('c')
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.where({ id: (0, typeorm_2.MoreThan)(0) })
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.getOneOrFail();
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await this.cacheManager.set(SYSTEM_CONFIG_KEY, config);
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return config;
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},
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});
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this.loadPromises.set(LOAD_LOCK_KEY, promise);
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return promise;
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}
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async updateConfig(partial) {
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const config = await this.systemConfigRepos
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.createQueryBuilder('c')
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.where({ id: (0, typeorm_2.MoreThan)(0) })
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.getOne();
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if (!config) {
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throw new Error('系统配置不存在');
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}
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Object.assign(config, partial);
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await this.systemConfigRepos.save(config);
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await this.cacheManager.set(SYSTEM_CONFIG_KEY, config);
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return config;
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}
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};
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exports.SystemConfigService = SystemConfigService;
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exports.SystemConfigService = SystemConfigService = __decorate([
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(0, common_1.Injectable)(),
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__param(0, (0, typeorm_1.InjectRepository)(system_config_model_1.SystemConfigModel)),
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__param(1, (0, common_2.Inject)(cache_manager_1.CACHE_MANAGER)),
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__metadata("design:paramtypes", [typeorm_2.Repository, Object, lock_service_1.DistributedLockService])
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], SystemConfigService);
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//# sourceMappingURL=system_config.service.js.map
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