+/*-
+ * ========================LICENSE_START=================================
+ * O-RAN-SC
+ * %%
+ * Copyright (C) 2019 AT&T Intellectual Property and Nokia
+ * %%
+ * Licensed 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.
+ * ========================LICENSE_END===================================
+ */
+
+import { CollectionViewer, DataSource } from '@angular/cdk/collections';
+import { Observable } from 'rxjs/Observable';
+import { catchError, finalize } from 'rxjs/operators';
+import { of } from 'rxjs/observable/of';
+import { BehaviorSubject } from 'rxjs/BehaviorSubject';
+import { XappMgrService } from '../services/xapp-mgr/xapp-mgr.service';
+import { XMXapp, XappControlRow } from '../interfaces/xapp-mgr.types';
+
+export class ControlDataSource extends DataSource<XappControlRow> {
+
+ private xAppInstancesSubject = new BehaviorSubject<XappControlRow[]>([]);
+
+ private loadingSubject = new BehaviorSubject<boolean>(false);
+
+ public loading$ = this.loadingSubject.asObservable();
+
+ constructor(private xappMgrSvc: XappMgrService) {
+ super();
+ };
+
+ loadTable() {
+ this.loadingSubject.next(true);
+ this.xappMgrSvc.getAll()
+ .pipe(
+ catchError(() => of([])),
+ finalize(() => this.loadingSubject.next(false))
+ )
+ .subscribe(xApps => this.xAppInstancesSubject.next(this.getInstance(xApps)) )
+ }
+
+ connect(collectionViewer: CollectionViewer): Observable<XappControlRow[]> {
+ return this.xAppInstancesSubject.asObservable();
+ }
+
+ disconnect(collectionViewer: CollectionViewer): void {
+ this.xAppInstancesSubject.complete();
+ this.loadingSubject.complete();
+ }
+
+ getInstance(allxappdata: XMXapp[]) {
+ const xAppInstances: XappControlRow[]= [];
+ for (const xappindex in allxappdata) {
+ const instancelist = allxappdata[xappindex].instances;
+ for (const instanceindex in instancelist) {
+ var instance: XappControlRow = {
+ xapp: allxappdata[xappindex].name,
+ instance: instancelist[instanceindex]
+ }
+ xAppInstances.push(instance);
+ }
+ }
+ return xAppInstances;
+ }
+}