webapp-frontend/src/app/policy/policy-type/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 { PolicyType, PolicyTypes, PolicyTypeSchema } from '@interfaces/policy.types';
  28 import { PolicyService } from '@services/policy/policy.service';
  29
  30 @Injectable({
  31     providedIn: 'root'
  32 })
  33
  34 export class PolicyTypeDataSource extends DataSource<PolicyTypeSchema> {
  35
  36     policyTypes: PolicyTypeSchema[] = [];
  37
  38     policyTypeSubject = new BehaviorSubject<PolicyTypeSchema[]>([]);
  39
  40     public rowCount = 1; // hide footer during intial load
  41
  42     constructor(public policySvc: PolicyService) {
  43         super();
  44     }
  45
  46     public getPolicyTypes() {
  47         this.policyTypes = [] as PolicyTypeSchema[];
  48         this.policySvc.getPolicyTypes()
  49             .subscribe((policyType: PolicyTypes) => {
  50                 this.rowCount = policyType.policytype_ids.length;
  51                 if (policyType.policytype_ids.length != 0) {
  52                     policyType.policytype_ids.forEach(policyTypeId => {
  53                         var policyTypeSchema = {} as PolicyTypeSchema
  54                         if (policyTypeId === "") {
  55                             policyTypeSchema.id = '';
  56                             policyTypeSchema.name = '';
  57                             policyTypeSchema.schemaObject = '{}';
  58                             this.policyTypes.push(policyTypeSchema);
  59                         }
  60                         else {
  61                             this.policySvc.getPolicyType(policyTypeId)
  62                                 .subscribe((policyType: PolicyType) => {
  63                                     policyTypeSchema.id = policyTypeId;
  64                                     policyTypeSchema.schemaObject = policyType.policy_schema;
  65                                     policyTypeSchema.name = policyType.policy_schema.title;
  66                                     this.policyTypes.push(policyTypeSchema);
  67                                 })
  68                         }
  69                         this.policyTypeSubject.next(this.policyTypes);
  70                     })
  71                 }
  72             })
  73     }
  74
  75     public getPolicyType(policyTypeId: string): PolicyTypeSchema {
  76         var policyTypeSchema = {} as PolicyTypeSchema;
  77         this.policySvc.getPolicyType(policyTypeId)
  78             .subscribe((policyType: PolicyType) => {
  79                 policyTypeSchema.id = policyTypeId;
  80                 policyTypeSchema.schemaObject = policyType.policy_schema;
  81                 policyTypeSchema.name = policyType.policy_schema.title;
  82             })
  83             if (policyTypeId === "") {
  84                 policyTypeSchema.id = '<No Type>';
  85             }
  86         return policyTypeSchema;
  87     }
  88
  89     connect(collectionViewer: CollectionViewer): Observable<PolicyTypeSchema[]> {
  90         return of(this.policyTypeSubject.getValue());
  91     }
  92
  93     disconnect(collectionViewer: CollectionViewer): void {
  94         this.policyTypeSubject.complete();
  95     }
  96 }