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/// <reference path="../../typings/tsd.d.ts" />
/// <reference path="../../bower_components/plottable/plottable.d.ts" />
module TF {
/* An extension of Plottable.Dataset that knows how to load data from a backend.
*/
export class Dataset extends Plottable.Dataset {
public tag: string;
public run: string;
private lastLoadTime: number;
private lastRequest;
private urlGenerator: Function;
constructor(tag: string, run: string, urlGenerator: (run: string, tag: string) => string) {
super([], {tag: tag, run: run});
this.tag = tag;
this.run = run;
this.urlGenerator = urlGenerator;
}
public load = _.debounce(this._load, 10);
private _load() {
var url = this.urlGenerator(this.tag, this.run);
if (this.lastRequest != null) {
this.lastRequest.abort();
}
this.lastRequest = d3.json(url, (error, json) => {
this.lastRequest = null;
if (error) {
/* tslint:disable */
console.log(error);
/* tslint:enable */
throw new Error("Failure loading JSON at url: \"" + url + "\"");
} else {
this.data(json);
}
});
}
}
}
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