| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| import {Injectable} from '@angular/core'; |
| import {HttpClient, HttpErrorResponse, HttpHeaders} from '@angular/common/http'; |
| |
| import 'rxjs/add/operator/toPromise'; |
| import {Subject} from 'rxjs/Subject'; |
| import {Topology} from './topology'; |
| |
| @Injectable() |
| export class TopologyService { |
| apiUrl = window.location.pathname.replace(new RegExp('admin-ui/.*'), 'api/v1/'); |
| topologiesUrl = this.apiUrl + 'topologies'; |
| selectedTopologySource = new Subject<Topology>(); |
| selectedTopology$ = this.selectedTopologySource.asObservable(); |
| changedTopologySource = new Subject<string>(); |
| changedTopology$ = this.changedTopologySource.asObservable(); |
| |
| constructor(private http: HttpClient) { |
| } |
| |
| getTopologies(): Promise<Topology[]> { |
| let headers = new HttpHeaders(); |
| headers = this.addJsonHeaders(headers); |
| return this.http.get(this.topologiesUrl, { |
| headers: headers |
| }) |
| .toPromise() |
| .then(response => response['topologies'].topology as Topology[]) |
| .catch((err: HttpErrorResponse) => { |
| console.debug('TopologyService --> getTopologies() --> ' + '\n error: ' + err.message); |
| if (err.status === 401) { |
| window.location.assign(document.location.pathname); |
| } else { |
| return this.handleError(err); |
| } |
| }); |
| } |
| |
| getTopology(href: string): Promise<string> { |
| let headers = new HttpHeaders(); |
| headers = this.addXmlHeaders(headers); |
| return this.http.get(href, { |
| headers: headers, responseType: 'text' |
| }) |
| .toPromise() |
| .then(response => response) |
| .catch((err: HttpErrorResponse) => { |
| console.debug('TopologyService --> getTopology() --> ' + href + '\n error: ' + err.message); |
| if (err.status === 401) { |
| window.location.assign(document.location.pathname); |
| } else { |
| return this.handleError(err); |
| } |
| }); |
| } |
| |
| saveTopology(url: string, xml: string): Promise<string> { |
| let xheaders = new HttpHeaders(); |
| xheaders = this.addXmlHeaders(xheaders); |
| return this.http.put(url, xml, {headers: xheaders, responseType: 'text'}) |
| .toPromise() |
| .then(() => xml) |
| .catch((err: HttpErrorResponse) => { |
| console.debug('TopologyService --> getTopology() --> \n error: ' + err.status + ' ' + err.message); |
| if (err.status === 401) { |
| window.location.assign(document.location.pathname); |
| } else { |
| return this.handleError(err); |
| } |
| }); |
| } |
| |
| createTopology(name: string, xml: string): Promise<string> { |
| let xheaders = new HttpHeaders(); |
| xheaders = this.addXmlHeaders(xheaders); |
| let url = this.topologiesUrl + '/' + name; |
| return this.http.put(url, xml, {headers: xheaders, responseType: 'text'}) |
| .toPromise() |
| .then(() => xml) |
| .catch((err: HttpErrorResponse) => { |
| console.debug('TopologyService --> createTopology() --> \n error: ' + err.status + ' ' + err.message); |
| if (err.status === 401) { |
| window.location.assign(document.location.pathname); |
| } else { |
| return this.handleError(err); |
| } |
| }); |
| } |
| |
| deleteTopology(href: string): Promise<string> { |
| let headers = new HttpHeaders(); |
| headers = this.addJsonHeaders(headers); |
| return this.http.delete(href, { |
| headers: headers, responseType: 'text' |
| }) |
| .toPromise() |
| .then(response => response) |
| .catch((err: HttpErrorResponse) => { |
| console.debug('TopologyService --> getTopology() --> ' + href + '\n error: ' + err.message); |
| if (err.status === 401) { |
| window.location.assign(document.location.pathname); |
| } else { |
| return this.handleError(err); |
| } |
| }); |
| } |
| |
| addJsonHeaders(headers: HttpHeaders): HttpHeaders { |
| return this.addCsrfHeaders(headers.append('Accept', 'application/json') |
| .append('Content-Type', 'application/json')); |
| } |
| |
| addXmlHeaders(headers: HttpHeaders): HttpHeaders { |
| return this.addCsrfHeaders(headers.append('Accept', 'application/xml') |
| .append('Content-Type', 'application/xml')); |
| } |
| |
| addCsrfHeaders(headers: HttpHeaders): HttpHeaders { |
| return this.addXHRHeaders(headers.append('X-XSRF-Header', 'admin-ui')); |
| } |
| |
| addXHRHeaders(headers: HttpHeaders): HttpHeaders { |
| return headers.append('X-Requested-With', 'XMLHttpRequest'); |
| } |
| |
| selectedTopology(value: Topology) { |
| this.selectedTopologySource.next(value); |
| } |
| |
| changedTopology(value: string) { |
| this.changedTopologySource.next(value); |
| } |
| |
| private handleError(error: any): Promise<any> { |
| console.error('An error occurred', error); // for demo purposes only |
| return Promise.reject(error.message || error); |
| } |
| } |