2 * ========================LICENSE_START=================================
5 * Copyright (C) 2019 Nordix Foundation
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 { DataSource } from '@angular/cdk/collections';
22 import { MatSort } from '@angular/material/sort';
23 import { Observable } from 'rxjs/Observable';
24 import { BehaviorSubject } from 'rxjs/BehaviorSubject';
25 import { merge } from 'rxjs';
26 import { map } from 'rxjs/operators';
27 import { PolicyInstance, PolicyTypeSchema } from '../../interfaces/policy.types';
28 import { PolicyService } from '../../services/policy/policy.service';
30 export class PolicyInstanceDataSource extends DataSource<PolicyInstance> {
32 policyInstances: PolicyInstance[] = [];
34 private policyInstanceSubject = new BehaviorSubject<PolicyInstance[]>([]);
36 private loadingSubject = new BehaviorSubject<boolean>(false);
38 public loading$ = this.loadingSubject.asObservable();
40 public rowCount = 1; // hide footer during intial load
43 private policySvc: PolicyService,
45 private policyTypeSchema: PolicyTypeSchema) {
49 public getPolicyInstances() {
50 this.policyInstances = [] as PolicyInstance[];
51 this.policySvc.getPolicyInstancesByType(this.policyTypeSchema.id).subscribe(policies => {
52 if (policies.policy_ids.length != 0) {
53 policies.policy_ids.forEach(policyId => {
54 var policyInstance = {} as PolicyInstance
55 this.policySvc.getPolicyInstance(policyId).subscribe(policyInstance => {
56 this.policySvc.getPolicyStatus(policyId).subscribe(policyStatus => {
57 policyInstance.lastModified = policyStatus.last_modified;
59 this.policyInstances.push(policyInstance);
61 this.policyInstanceSubject.next(this.policyInstances);
67 connect(): Observable<PolicyInstance[]> {
68 const dataMutations = [
69 this.policyInstanceSubject.asObservable(),
72 return merge(...dataMutations).pipe(map(() => {
73 return this.getSortedData([...this.policyInstanceSubject.getValue()]);
78 this.policyInstanceSubject.complete();
79 this.loadingSubject.complete();
82 private getSortedData(data: PolicyInstance[]) {
83 if (!this.sort || !this.sort.active || this.sort.direction === '') {
87 return data.sort((a, b) => {
88 const isAsc = this.sort.direction === 'asc';
89 switch (this.sort.active) {
90 case 'instanceId': return compare(a.policy_id, b.policy_id, isAsc);
91 case 'ric': return compare(a.ric_id, b.ric_id, isAsc);
92 case 'service': return compare(a.service_id, b.service_id, isAsc);
93 case 'lastModified': return compare(a.lastModified, b.lastModified, isAsc);
100 function compare(a: string, b: string, isAsc: boolean) {
101 return (a < b ? -1 : 1) * (isAsc ? 1 : -1);