b3d98cba77
The BaseRequestOptions class is responsible for declaring default values, while the RequestOptions class is merely responsible for setting values based on values provided in the constructor.
111 lines
2.9 KiB
TypeScript
111 lines
2.9 KiB
TypeScript
import {
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isPresent,
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isBlank,
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isJsObject,
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isType,
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StringWrapper,
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BaseException
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} from 'angular2/src/facade/lang';
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import {
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isListLikeIterable,
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List,
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Map,
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MapWrapper,
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ListWrapper,
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StringMap
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} from 'angular2/src/facade/collection';
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/**
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* Polyfill for [Headers](https://developer.mozilla.org/en-US/docs/Web/API/Headers/Headers), as
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* specified in the [Fetch Spec](https://fetch.spec.whatwg.org/#headers-class). The only known
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* difference from the spec is the lack of an `entries` method.
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*/
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export class Headers {
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_headersMap: Map<string, List<string>>;
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constructor(headers?: Headers | StringMap<string, any>) {
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if (isBlank(headers)) {
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this._headersMap = new Map();
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return;
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}
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if (headers instanceof Headers) {
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this._headersMap = (<Headers>headers)._headersMap;
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} else if (headers instanceof StringMap) {
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this._headersMap = MapWrapper.createFromStringMap(headers);
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MapWrapper.forEach(this._headersMap, (v, k) => {
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if (!isListLikeIterable(v)) {
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var list = [];
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list.push(v);
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this._headersMap.set(k, list);
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}
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});
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}
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}
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/**
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* Appends a header to existing list of header values for a given header name.
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*/
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append(name: string, value: string): void {
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var mapName = this._headersMap.get(name);
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var list = isListLikeIterable(mapName) ? mapName : [];
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list.push(value);
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this._headersMap.set(name, list);
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}
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/**
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* Deletes all header values for the given name.
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*/
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delete (name: string): void { MapWrapper.delete(this._headersMap, name); }
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forEach(fn: Function) { MapWrapper.forEach(this._headersMap, fn); }
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/**
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* Returns first header that matches given name.
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*/
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get(header: string): string { return ListWrapper.first(this._headersMap.get(header)); }
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/**
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* Check for existence of header by given name.
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*/
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has(header: string): boolean { return this._headersMap.has(header); }
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/**
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* Provides names of set headers
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*/
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keys(): List<string> { return MapWrapper.keys(this._headersMap); }
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/**
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* Sets or overrides header value for given name.
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*/
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set(header: string, value: string | List<string>): void {
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var list = [];
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if (isListLikeIterable(value)) {
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var pushValue = (<List<string>>value).join(',');
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list.push(pushValue);
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} else {
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list.push(value);
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}
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this._headersMap.set(header, list);
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}
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/**
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* Returns values of all headers.
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*/
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values(): List<List<string>> { return MapWrapper.values(this._headersMap); }
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/**
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* Returns list of header values for a given name.
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*/
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getAll(header: string): Array<string> {
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var headers = this._headersMap.get(header);
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return isListLikeIterable(headers) ? headers : [];
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}
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/**
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* This method is not implemented.
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*/
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entries() { throw new BaseException('"entries" method is not implemented on Headers class'); }
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}
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