redis-smq
Version:
A high-performance, reliable, and scalable message queue for Node.js.
63 lines • 1.86 kB
JavaScript
import { Runnable, Timer } from 'redis-smq-common';
import { RedisSMQ } from '../../../redis-smq/index.js';
export class WorkerAbstract extends Runnable {
timer = null;
initialized = false;
config;
redisConfig;
constructor(payload) {
super();
const { redisConfig, config } = payload;
this.redisConfig = redisConfig;
this.config = config;
}
finalizeUp() {
this.timer?.schedule(this.onTick, 1000);
super.finalizeUp();
}
goingUp() {
return super.goingUp().concat([
(cb) => {
if (RedisSMQ.isRunning())
return cb();
RedisSMQ.initialize(this.redisConfig, cb);
},
(cb) => {
this.logger.debug('Setting up worker timer');
this.timer = new Timer(this.logger);
this.timer.run(cb);
},
]);
}
goingDown() {
return [
(cb) => {
this.logger.debug('Resetting worker timer');
if (this.timer) {
this.timer.shutdown(cb);
return;
}
cb();
},
].concat(super.goingDown());
}
onTick = () => {
if (this.isOperational()) {
this.work((err) => {
if (err) {
this.logger.error('Error during worker execution', err);
this.handleError(err);
return;
}
this.timer?.schedule(this.onTick, 1000);
});
}
};
handleError = (err) => {
if (this.isOperational()) {
this.logger.error(`Fatal error in worker ${this.constructor.name}`, err);
throw err;
}
};
}
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