webapp-frontend/src/app/policy-control/policy-type.datasource.ts

   1 /*-
   2  * ========================LICENSE_START=================================
   3  * O-RAN-SC
   4  * %%
   5  * Copyright (C) 2019 Nordix Foundation
   6  * %%
   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
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  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===================================
  19  */
  20
  21 import { CollectionViewer, DataSource } from '@angular/cdk/collections';
  22 import { Injectable } from '@angular/core';
  23 import { BehaviorSubject } from 'rxjs/BehaviorSubject';
  24 import { of } from 'rxjs/observable/of';
  25 import { Observable } from 'rxjs/Observable';
  26
  27 import { PolicyTypeSchema } from '../interfaces/policy.types';
  28 import { PolicyService } from '../services/policy/policy.service';
  29 import { NotificationService } from '../services/ui/notification.service';
  30
  31 @Injectable({
  32     providedIn: 'root'
  33 })
  34
  35 export class PolicyTypeDataSource extends DataSource<PolicyTypeSchema> {
  36
  37     policyTypes: PolicyTypeSchema[] = [];
  38
  39     private policyTypeSubject = new BehaviorSubject<PolicyTypeSchema[]>([]);
  40
  41     public rowCount = 1; // hide footer during intial load
  42
  43     constructor(private policySvc: PolicyService,
  44         private notificationService: NotificationService) {
  45         super();
  46     }
  47
  48     public getPolicyTypes() {
  49         this.policyTypes = [] as PolicyTypeSchema[];
  50         this.policySvc.getPolicyTypes().subscribe(data => {
  51             if (data.policytype_ids.length != 0) {
  52                 data.policytype_ids.forEach(policyId => {
  53                     var policyTypeSchema = {} as PolicyTypeSchema
  54                     if (policyId === "") {
  55                         policyTypeSchema.name = '';
  56                         policyTypeSchema.schemaObject = '{}';
  57                         this.policyTypes.push(policyTypeSchema);
  58                     }
  59                     else {
  60                         this.policySvc.getPolicyType(policyId).subscribe(policyType => {
  61                             policyTypeSchema.schemaObject = policyType.policy_schema;
  62                             policyTypeSchema.name = policyType.policy_schema.title;
  63                             this.policyTypes.push(policyTypeSchema);
  64                         })
  65                     }
  66                     this.policyTypeSubject.next(this.policyTypes);
  67                 })
  68             }
  69         })
  70     }
  71
  72     connect(collectionViewer: CollectionViewer): Observable<PolicyTypeSchema[]> {
  73         return of(this.policyTypeSubject.getValue());
  74     }
  75
  76     disconnect(collectionViewer: CollectionViewer): void {
  77         this.policyTypeSubject.complete();
  78     }
  79 }