2 * ========================LICENSE_START=================================
5 * Copyright (C) 2019 AT&T Intellectual Property and Nokia
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 * ========================LICENSE_END===================================
21 import { CollectionViewer, DataSource} from '@angular/cdk/collections';
22 import { Observable } from 'rxjs/Observable';
23 import { catchError, finalize } from 'rxjs/operators';
24 import { of } from 'rxjs/observable/of';
25 import { BehaviorSubject } from 'rxjs/BehaviorSubject';
26 import { ANRNeighborCellRelation } from '../interfaces/anr-xapp.types';
27 import { ANRXappService } from '../services/anr-xapp/anr-xapp.service';
29 // https://blog.angular-university.io/angular-material-data-table/
30 export class ANRXappDataSource extends DataSource<ANRNeighborCellRelation> {
32 private relationsSubject = new BehaviorSubject<ANRNeighborCellRelation[]>([]);
34 private loadingSubject = new BehaviorSubject<boolean>(false);
36 public loading$ = this.loadingSubject.asObservable();
38 constructor(private anrXappService: ANRXappService) {
42 loadTable(ggnodeb = '', servingCellNrcgi = '', neighborCellNrpci = '') {
43 this.loadingSubject.next(true);
44 this.anrXappService.getNcrtInfo(ggnodeb, servingCellNrcgi, neighborCellNrpci)
46 catchError(() => of([])),
47 finalize(() => this.loadingSubject.next(false))
49 .subscribe(ncrt => this.relationsSubject.next(ncrt));
52 connect(collectionViewer: CollectionViewer): Observable<ANRNeighborCellRelation[]> {
53 return this.relationsSubject.asObservable();
56 disconnect(collectionViewer: CollectionViewer): void {
57 this.relationsSubject.complete();
58 this.loadingSubject.complete();