ffffng/server/jobs/scheduler.ts
baldo 8b8835e4ac Typescript migration:
* Refactoring of scheduler and jobs to use promises.
* Add "failed" state for tasks.
2020-04-08 23:41:04 +02:00

126 lines
3.2 KiB
TypeScript

import cron from "node-cron";
import moment from "moment";
import {config} from "../config";
import Logger from "../logger";
import MailQueueJob from "./MailQueueJob";
import FixNodeFilenamesJob from "./FixNodeFilenamesJob";
import NodeInformationRetrievalJob from "./NodeInformationRetrievalJob";
import MonitoringMailsSendingJob from "./MonitoringMailsSendingJob";
import OfflineNodesDeletionJob from "./OfflineNodesDeletionJob";
export interface Job {
name: string,
description: string,
run(): Promise<void>,
}
export enum TaskState {
IDLE = "idle",
RUNNING = "running",
FAILED = "failed",
}
export class Task {
constructor(
public id: number,
public name: string,
public description: string,
public schedule: string,
public job: Job,
public runningSince: moment.Moment | null,
public lastRunStarted: moment.Moment | null,
public lastRunDuration: number | null,
public state: TaskState,
public enabled: true,
) {}
run(): void {
if (this.runningSince || !this.enabled) {
// job is still running, skip execution
return;
}
this.runningSince = moment();
this.lastRunStarted = this.runningSince;
this.state = TaskState.RUNNING;
const done = (state: TaskState):void => {
const now = moment();
const duration = now.diff(this.runningSince || now);
Logger.tag('jobs').profile('[%sms]\t%s', duration, this.name);
this.runningSince = null;
this.lastRunDuration = duration;
this.state = state;
};
this.job.run().then(() => {
done(TaskState.IDLE);
}).catch((err: any) => {
Logger.tag('jobs').error("Job %s failed: %s", this.name, err);
done(TaskState.FAILED);
});
}
}
type Tasks = {[key: string]: Task};
const tasks: Tasks = {};
let taskId = 1;
function nextTaskId(): number {
const id = taskId;
taskId += 1;
return id;
}
function schedule(expr: string, job: Job): void {
Logger.tag('jobs').info('Scheduling job: %s %s', expr, job.name);
const id = nextTaskId();
const task = new Task(
id,
job.name,
job.description,
expr,
job,
null,
null,
null,
TaskState.IDLE,
true
);
cron.schedule(expr, task.run);
tasks['' + id] = task;
}
export function init() {
Logger.tag('jobs').info('Scheduling background jobs...');
try {
schedule('0 */1 * * * *', MailQueueJob);
schedule('15 */1 * * * *', FixNodeFilenamesJob);
if (config.client.monitoring.enabled) {
schedule('30 */15 * * * *', NodeInformationRetrievalJob);
schedule('45 */5 * * * *', MonitoringMailsSendingJob);
schedule('0 0 3 * * *', OfflineNodesDeletionJob); // every night at 3:00
}
}
catch (error) {
Logger.tag('jobs').error('Error during scheduling of background jobs:', error);
throw error;
}
Logger.tag('jobs').info('Scheduling of background jobs done.');
}
export function getTasks(): Tasks {
return tasks;
}