32 lines
977 B
TypeScript
32 lines
977 B
TypeScript
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import {XHR} from 'angular2/src/compiler/xhr';
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import {BaseException} from 'angular2/src/facade/exceptions';
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import {global} from 'angular2/src/facade/lang';
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import {PromiseWrapper} from 'angular2/src/facade/promise';
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/**
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* An implementation of XHR that uses a template cache to avoid doing an actual
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* XHR.
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*
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* The template cache needs to be built and loaded into window.$templateCache
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* via a separate mechanism.
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*/
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export class CachedXHR extends XHR {
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private _cache: {[url: string]: string};
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constructor() {
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super();
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this._cache = (<any>global).$templateCache;
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if (this._cache == null) {
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throw new BaseException('CachedXHR: Template cache was not found in $templateCache.');
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}
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}
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get(url: string): Promise<string> {
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if (this._cache.hasOwnProperty(url)) {
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return PromiseWrapper.resolve(this._cache[url]);
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} else {
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return PromiseWrapper.reject('CachedXHR: Did not find cached template for ' + url, null);
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}
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}
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}
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