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Commit | Line | Data |
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1 | import { logger } from '../../helpers/logger' | |
2 | import * as Bluebird from 'bluebird' | |
3 | ||
4 | export abstract class AbstractScheduler { | |
5 | ||
6 | protected abstract schedulerIntervalMs: number | |
7 | ||
8 | private interval: NodeJS.Timer | |
9 | private isRunning = false | |
10 | ||
11 | enable () { | |
12 | if (!this.schedulerIntervalMs) throw new Error('Interval is not correctly set.') | |
13 | ||
14 | this.interval = setInterval(() => this.execute(), this.schedulerIntervalMs) | |
15 | } | |
16 | ||
17 | disable () { | |
18 | clearInterval(this.interval) | |
19 | } | |
20 | ||
21 | async execute () { | |
22 | if (this.isRunning === true) return | |
23 | this.isRunning = true | |
24 | ||
25 | try { | |
26 | await this.internalExecute() | |
27 | } catch (err) { | |
28 | logger.error('Cannot execute %s scheduler.', this.constructor.name, { err }) | |
29 | } finally { | |
30 | this.isRunning = false | |
31 | } | |
32 | } | |
33 | ||
34 | protected abstract internalExecute (): Promise<any> | Bluebird<any> | |
35 | } |