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1 | import { Component, OnInit, OnDestroy } from '@angular/core' | |
2 | ||
3 | import { NotificationsService } from 'angular2-notifications' | |
4 | ||
5 | import { RequestSchedulersService, RequestSchedulerStatsAttributes } from '../shared' | |
6 | import { RequestSchedulerStats } from '../../../../../../shared' | |
7 | ||
8 | @Component({ | |
9 | selector: 'my-request-schedulers-stats', | |
10 | templateUrl: './request-schedulers-stats.component.html', | |
11 | styleUrls: [ './request-schedulers-stats.component.scss' ] | |
12 | }) | |
13 | export class RequestSchedulersStatsComponent implements OnInit, OnDestroy { | |
14 | statsTitles = { | |
15 | requestScheduler: 'Basic request scheduler', | |
16 | requestVideoEventScheduler: 'Video events request scheduler', | |
17 | requestVideoQaduScheduler: 'Quick and dirty video updates request scheduler' | |
18 | } | |
19 | ||
20 | stats: RequestSchedulerStats | |
21 | ||
22 | private intervals: { [ id: string ]: number } = { | |
23 | requestScheduler: null, | |
24 | requestVideoEventScheduler: null, | |
25 | requestVideoQaduScheduler: null | |
26 | } | |
27 | ||
28 | private timeouts: { [ id: string ]: number } = { | |
29 | requestScheduler: null, | |
30 | requestVideoEventScheduler: null, | |
31 | requestVideoQaduScheduler: null | |
32 | } | |
33 | ||
34 | constructor ( | |
35 | private notificationsService: NotificationsService, | |
36 | private requestService: RequestSchedulersService | |
37 | ) { } | |
38 | ||
39 | ngOnInit () { | |
40 | this.getStats() | |
41 | this.runIntervals() | |
42 | } | |
43 | ||
44 | ngOnDestroy () { | |
45 | Object.keys(this.stats).forEach(requestSchedulerName => { | |
46 | if (this.intervals[requestSchedulerName] !== null) { | |
47 | window.clearInterval(this.intervals[requestSchedulerName]) | |
48 | } | |
49 | ||
50 | if (this.timeouts[requestSchedulerName] !== null) { | |
51 | window.clearTimeout(this.timeouts[requestSchedulerName]) | |
52 | } | |
53 | }) | |
54 | } | |
55 | ||
56 | getStats () { | |
57 | this.requestService.getStats().subscribe( | |
58 | stats => this.stats = stats, | |
59 | ||
60 | err => this.notificationsService.error('Error', err.message) | |
61 | ) | |
62 | } | |
63 | ||
64 | private runIntervals () { | |
65 | Object.keys(this.intervals).forEach(requestSchedulerName => { | |
66 | this.intervals[requestSchedulerName] = window.setInterval(() => { | |
67 | const stats: RequestSchedulerStatsAttributes = this.stats[requestSchedulerName] | |
68 | ||
69 | stats.remainingMilliSeconds -= 1000 | |
70 | ||
71 | if (stats.remainingMilliSeconds <= 0) { | |
72 | this.timeouts[requestSchedulerName] = window.setTimeout(() => this.getStats(), stats.remainingMilliSeconds + 100) | |
73 | } | |
74 | }, 1000) | |
75 | }) | |
76 | } | |
77 | } |