1a5fa78fa6
- new NestJS service on port 3011/gRPC 50059 (ADR-026) - owns 6 config_ tables (plugin/role-mapping/role-layout/layout-tpl/user-override/outbox) - GraphQL Federation 2 subgraph with DataLoader + RouterAuthGuard - gRPC ConfigService + admin REST CRUD + user REST API - three-layer merge: registry.defaultProps + roleMapping.widget_props + userOverride.props - Redis cache with 5min TTL - registered in apollo-router supergraph + docker-compose + port-allocation Implements M3 of v2.1 migration plan.
109 lines
3.1 KiB
TypeScript
109 lines
3.1 KiB
TypeScript
import { Injectable } from "@nestjs/common";
|
||
import { getRedis } from "../../config/redis.js";
|
||
import { cacheMetrics } from "../observability/metrics.js";
|
||
|
||
const CACHE_TTL_SECONDS = 300; // 5 分钟
|
||
|
||
/**
|
||
* config-service Redis 缓存服务。
|
||
*
|
||
* 缓存策略：
|
||
* - Plugin registry: `config:plugin:{pluginId}` → JSON PluginRegistryItem
|
||
* - User layout override: `config:user-layout:{userId}` → JSON UserLayoutOverride
|
||
* - TTL: 5 分钟，超时自动失效重新从 DB 加载
|
||
* - 失效：admin 修改配置或用户更新布局时主动 del
|
||
*
|
||
* 使用 ioredis 单例（config/redis.ts 管理），不重复创建连接。
|
||
*/
|
||
@Injectable()
|
||
export class ConfigCacheService {
|
||
private static buildPluginKey(pluginId: string): string {
|
||
return `config:plugin:${pluginId}`;
|
||
}
|
||
|
||
private static buildUserLayoutKey(userId: string): string {
|
||
return `config:user-layout:${userId}`;
|
||
}
|
||
|
||
// ============ Plugin Registry ============
|
||
|
||
async getPlugin(pluginId: string): Promise<string | null> {
|
||
const redis = getRedis();
|
||
const raw = await redis.get(ConfigCacheService.buildPluginKey(pluginId));
|
||
if (!raw) {
|
||
cacheMetrics.recordMiss("plugin");
|
||
return null;
|
||
}
|
||
cacheMetrics.recordHit("plugin");
|
||
return raw;
|
||
}
|
||
|
||
async setPlugin(pluginId: string, json: string): Promise<void> {
|
||
const redis = getRedis();
|
||
await redis.set(
|
||
ConfigCacheService.buildPluginKey(pluginId),
|
||
json,
|
||
"EX",
|
||
CACHE_TTL_SECONDS,
|
||
);
|
||
}
|
||
|
||
async invalidatePlugin(pluginId: string, reason = "manual"): Promise<void> {
|
||
const redis = getRedis();
|
||
await redis.del(ConfigCacheService.buildPluginKey(pluginId));
|
||
cacheMetrics.recordInvalidation("plugin", reason);
|
||
}
|
||
|
||
/**
|
||
* 批量失效所有 plugin 缓存（admin 全量更新时调用）。
|
||
* 通过 SCAN 匹配 config:plugin:* 模式删除。
|
||
*/
|
||
async invalidateAllPlugins(reason = "admin-update"): Promise<void> {
|
||
const redis = getRedis();
|
||
let cursor = "0";
|
||
do {
|
||
const [next, keys] = await redis.scan(
|
||
cursor,
|
||
"MATCH",
|
||
"config:plugin:*",
|
||
"COUNT",
|
||
100,
|
||
);
|
||
cursor = next;
|
||
if (keys.length > 0) {
|
||
await redis.del(...keys);
|
||
}
|
||
} while (cursor !== "0");
|
||
cacheMetrics.recordInvalidation("plugin", reason);
|
||
}
|
||
|
||
// ============ User Layout Override ============
|
||
|
||
async getUserLayout(userId: string): Promise<string | null> {
|
||
const redis = getRedis();
|
||
const raw = await redis.get(ConfigCacheService.buildUserLayoutKey(userId));
|
||
if (!raw) {
|
||
cacheMetrics.recordMiss("user-layout");
|
||
return null;
|
||
}
|
||
cacheMetrics.recordHit("user-layout");
|
||
return raw;
|
||
}
|
||
|
||
async setUserLayout(userId: string, json: string): Promise<void> {
|
||
const redis = getRedis();
|
||
await redis.set(
|
||
ConfigCacheService.buildUserLayoutKey(userId),
|
||
json,
|
||
"EX",
|
||
CACHE_TTL_SECONDS,
|
||
);
|
||
}
|
||
|
||
async invalidateUserLayout(userId: string, reason = "manual"): Promise<void> {
|
||
const redis = getRedis();
|
||
await redis.del(ConfigCacheService.buildUserLayoutKey(userId));
|
||
cacheMetrics.recordInvalidation("user-layout", reason);
|
||
}
|
||
}
|