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import { Component, OnInit, OnDestroy } from '@angular/core'
import { NotificationsService } from 'angular2-notifications'
import { RequestService, RequestStats } from '../shared'
@Component({
selector: 'my-request-stats',
templateUrl: './request-stats.component.html',
styleUrls: [ './request-stats.component.scss' ]
})
export class RequestStatsComponent implements OnInit, OnDestroy {
statsTitles = {
requestScheduler: 'Basic request scheduler',
requestVideoEventScheduler: 'Video events request scheduler',
requestVideoQaduScheduler: 'Quick and dirty video updates request scheduler'
}
stats: { [ id: string ]: RequestStats } = {
requestScheduler: null,
requestVideoEventScheduler: null,
requestVideoQaduScheduler: null
}
private intervals: { [ id: string ]: number } = {
requestScheduler: null,
requestVideoEventScheduler: null,
requestVideoQaduScheduler: null
}
private timeouts: { [ id: string ]: number } = {
requestScheduler: null,
requestVideoEventScheduler: null,
requestVideoQaduScheduler: null
}
constructor (
private notificationsService: NotificationsService,
private requestService: RequestService
) { }
ngOnInit () {
this.getStats()
this.runIntervals()
}
ngOnDestroy () {
Object.keys(this.stats).forEach(requestSchedulerName => {
if (this.intervals[requestSchedulerName] !== null) {
window.clearInterval(this.intervals[requestSchedulerName])
}
if (this.timeouts[requestSchedulerName] !== null) {
window.clearTimeout(this.timeouts[requestSchedulerName])
}
})
}
getStats () {
this.requestService.getStats().subscribe(
stats => this.stats = stats,
err => this.notificationsService.error('Error', err.text)
)
}
private runIntervals () {
Object.keys(this.intervals).forEach(requestSchedulerName => {
this.intervals[requestSchedulerName] = window.setInterval(() => {
const stats = this.stats[requestSchedulerName]
stats.remainingMilliSeconds -= 1000
if (stats.remainingMilliSeconds <= 0) {
this.timeouts[requestSchedulerName] = window.setTimeout(() => this.getStats(), stats.remainingMilliSeconds + 100)
}
}, 1000)
})
}
}
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