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implement no-op caches for testing

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Hazelnoot 2025-06-06 12:17:04 -04:00
parent 1d06ac4824
commit 2e486f02ff
3 changed files with 244 additions and 15 deletions
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41
packages/backend/src/misc/cache.ts
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@ -11,9 +11,9 @@ import { InternalEventTypes } from '@/core/GlobalEventService.js';
export class RedisKVCache<T> {
private readonly lifetime: number;
private readonly memoryCache: MemoryKVCache<T>;
private readonly fetcher: (key: string) => Promise<T>;
private readonly toRedisConverter: (value: T) => string;
private readonly fromRedisConverter: (value: string) => T | undefined;
public readonly fetcher: (key: string) => Promise<T>;
public readonly toRedisConverter: (value: T) => string;
public readonly fromRedisConverter: (value: string) => T | undefined;
constructor(
private redisClient: Redis.Redis,
@ -101,6 +101,11 @@ export class RedisKVCache<T> {
// TODO: イベント発行して他プロセスのメモリキャッシュも更新できるようにする
}
@bindThis
public clear() {
this.memoryCache.clear();
}
@bindThis
public gc() {
this.memoryCache.gc();
@ -125,16 +130,17 @@ export class RedisSingleCache<T> {
opts: {
lifetime: number;
memoryCacheLifetime: number;
fetcher: RedisSingleCache<T>['fetcher'];
toRedisConverter: RedisSingleCache<T>['toRedisConverter'];
fromRedisConverter: RedisSingleCache<T>['fromRedisConverter'];
fetcher?: RedisSingleCache<T>['fetcher'];
toRedisConverter?: RedisSingleCache<T>['toRedisConverter'];
fromRedisConverter?: RedisSingleCache<T>['fromRedisConverter'];
},
) {
this.lifetime = opts.lifetime;
this.memoryCache = new MemorySingleCache(opts.memoryCacheLifetime);
this.fetcher = opts.fetcher;
this.toRedisConverter = opts.toRedisConverter;
this.fromRedisConverter = opts.fromRedisConverter;
this.fetcher = opts.fetcher ?? (() => { throw new Error('fetch not supported - use get/set directly'); });
this.toRedisConverter = opts.toRedisConverter ?? ((value) => JSON.stringify(value));
this.fromRedisConverter = opts.fromRedisConverter ?? ((value) => JSON.parse(value));
}
@bindThis
@ -417,6 +423,8 @@ export class MemorySingleCache<T> {
}
}
// TODO move to separate file
export interface QuantumKVOpts<T> {
/**
* Memory cache lifetime in milliseconds.
@ -452,9 +460,9 @@ export interface QuantumKVOpts<T> {
export class QuantumKVCache<T> implements Iterable<[key: string, value: T]> {
private readonly memoryCache: MemoryKVCache<T>;
private readonly fetcher: QuantumKVOpts<T>['fetcher'];
private readonly onSet: QuantumKVOpts<T>['onSet'];
private readonly onDelete: QuantumKVOpts<T>['onDelete'];
public readonly fetcher: QuantumKVOpts<T>['fetcher'];
public readonly onSet: QuantumKVOpts<T>['onSet'];
public readonly onDelete: QuantumKVOpts<T>['onDelete'];
/**
* @param internalEventService Service bus to synchronize events.
@ -676,6 +684,15 @@ export class QuantumKVCache<T> implements Iterable<[key: string, value: T]> {
* Does not send any events or update other processes.
*/
@bindThis
public clear() {
this.memoryCache.clear();
}
/**
* Removes expired cache entries from the local view.
* Does not send any events or update other processes.
*/
@bindThis
public gc() {
this.memoryCache.gc();
}