pipeline-builder-demo/src/app/right-editor/tool-panel/tool-groups.service.ts

Pipeline Builder

import { Injectable } from '@angular/core';
import { Http, Response }          from '@angular/http';

import { Observable } from 'rxjs/Observable';
import 'rxjs/add/operator/catch';
import 'rxjs/add/operator/map';

import {IToolGroup} from './tool-group';


@Injectable()
export class ToolGroupsService {
  private toolsUrl = 'data/tool-groups.json';

  constructor (private http: Http) {
  }

  getToolGroups(): Observable<IToolGroup[]> {
    // let jsonTools = JSON.stringify(TOOLS);
    // console.log(jsonTools);

    return this.http.get(this.toolsUrl)
      .map(this.extractData)
      .catch(this.handleError);
  }

  private extractData(res: Response) {
    let body = res.json();
    return body || { };
  }
  private handleError (error: Response | any) {
    // In a real world app, you might use a remote logging infrastructure
    let errMsg: string;
    if (error instanceof Response) {
      const body = error.json() || '';
      const err = body.error || JSON.stringify(body);
      errMsg = `${error.status} - ${error.statusText || ''} ${err}`;
    } else {
      errMsg = error.message ? error.message : error.toString();
    }
    console.error(errMsg);
    return Observable.throw(errMsg);
  }
}