75 lines
1.6 KiB
JavaScript
75 lines
1.6 KiB
JavaScript
import AdaptableController from './AdaptableController';
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import CacheAdapter from '../Adapters/Cache/CacheAdapter';
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const KEY_SEPARATOR_CHAR = ':';
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function joinKeys(...keys) {
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return keys.join(KEY_SEPARATOR_CHAR);
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}
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/**
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* Prefix all calls to the cache via a prefix string, useful when grouping Cache by object type.
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*
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* eg "Role" or "Session"
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*/
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export class SubCache {
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constructor(prefix, cacheController, ttl) {
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this.prefix = prefix;
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this.cache = cacheController;
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this.ttl = ttl;
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}
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get(key) {
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const cacheKey = joinKeys(this.prefix, key);
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return this.cache.get(cacheKey);
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}
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put(key, value, ttl) {
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const cacheKey = joinKeys(this.prefix, key);
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return this.cache.put(cacheKey, value, ttl);
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}
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del(key) {
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const cacheKey = joinKeys(this.prefix, key);
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return this.cache.del(cacheKey);
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}
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clear() {
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return this.cache.clear();
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}
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}
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export class CacheController extends AdaptableController {
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constructor(adapter, appId, options = {}) {
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super(adapter, appId, options);
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this.role = new SubCache('role', this);
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this.user = new SubCache('user', this);
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}
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get(key) {
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const cacheKey = joinKeys(this.appId, key);
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return this.adapter.get(cacheKey).then(null, () => Promise.resolve(null));
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}
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put(key, value, ttl) {
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const cacheKey = joinKeys(this.appId, key);
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return this.adapter.put(cacheKey, value, ttl);
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}
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del(key) {
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const cacheKey = joinKeys(this.appId, key);
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return this.adapter.del(cacheKey);
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}
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clear() {
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return this.adapter.clear();
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}
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expectedAdapterType() {
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return CacheAdapter;
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}
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}
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export default CacheController;
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