| /** |
| * 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 } from '@angular/common/http'; |
| import { Observable, BehaviorSubject } from 'rxjs'; |
| import { catchError, map } from 'rxjs/operators'; |
| import { HttpUtil } from 'app/utils/httpUtil'; |
| import { AppConfigService } from 'app/service/app-config.service'; |
| import { DynamicMenuItem } from './dynamic-item.model'; |
| |
| export interface ContextMenuConfigModel { |
| isEnabled: boolean, |
| config: {} |
| } |
| |
| @Injectable() |
| export class ContextMenuService { |
| private cachedConfig$: BehaviorSubject<ContextMenuConfigModel>; |
| |
| constructor( |
| private http: HttpClient, |
| private appConfig: AppConfigService |
| ) {} |
| |
| getConfig(): Observable<ContextMenuConfigModel> { |
| if (!this.cachedConfig$) { |
| const defaultConfig = { isEnabled: false, config: {} }; |
| |
| this.cachedConfig$ = new BehaviorSubject(undefined); |
| |
| this.http.get(this.appConfig.getContextMenuConfigURL()) |
| .pipe( |
| map(HttpUtil.extractData), |
| catchError(HttpUtil.handleError) |
| ).subscribe((result) => { |
| if (this.validate(result)) { |
| this.cachedConfig$.next(result); |
| } else { |
| this.cachedConfig$.next(defaultConfig); |
| } |
| }); |
| } |
| |
| return this.cachedConfig$; |
| } |
| |
| private validate(configJson: ContextMenuConfigModel) { |
| |
| if (!configJson.hasOwnProperty('isEnabled') || !configJson.hasOwnProperty('config')) { |
| console.error('[Context Menu] CONFIG: isEnabled and/or config entries are missing.') |
| return false; |
| } |
| |
| if (configJson.isEnabled !== true && configJson.isEnabled !== false) { |
| console.error('[Context Menu] CONFIG: isEnabled has to be a boolean. Defaulting to false.'); |
| return false; |
| } |
| |
| if (typeof configJson.config !== 'object' || Array.isArray(configJson.config)) { |
| console.error('[Context Menu] CONFIG: Config entry has to be an object. Defaulting to {}.'); |
| return false; |
| } |
| |
| return Object.keys(configJson.config).every((key) => { |
| if (!Array.isArray(configJson.config[key])) { |
| console.error('[Context Menu] CONFIG: Each item in config object has to be an array.') |
| return false; |
| } |
| |
| return configJson.config[key].every((menuItem) => { |
| if (!DynamicMenuItem.isConfigValid(menuItem)) { |
| console.error(`[Context Menu] CONFIG: Entry is invalid: ${JSON.stringify(menuItem)}`); |
| return false; |
| } |
| return true; |
| }); |
| }) |
| } |
| } |