redis-smq-common/dist/esm/src/worker/worker-runnable.js

RedisSMQ Common Library provides many components that are mainly used by RedisSMQ and RedisSMQ Monitor.

import { PowerSwitch } from '../power-switch/index.js';
import { WorkerAlreadyDownError, WorkerAlreadyRunningError, } from './errors/index.js';
import { EWorkerThreadParentMessage, EWorkerType, } from './types/index.js';
import { Worker } from './worker.js';
export class WorkerRunnable extends Worker {
    type = EWorkerType.RUNNABLE;
    powerSwitch;
    constructor(workerFilename, initialPayload, logger) {
        super(workerFilename, initialPayload);
        this.logger = logger ?? this.logger;
        this.powerSwitch = new PowerSwitch();
        this.logger.info(`WorkerRunnable instance created for ${workerFilename}`);
        this.logger.debug('WorkerRunnable initialization details', {
            id: this.id,
            type: EWorkerType[this.type],
            hasCustomLogger: !!logger,
            initialPayload: this.initialPayload ? 'provided' : 'none',
        });
    }
    run(cb) {
        this.logger.info(`Attempting to run worker ${this.id}`);
        const r = this.powerSwitch.goingUp();
        if (r) {
            this.logger.debug('Power switch state changed to going up');
            this.logger.debug('Registering worker thread event handlers');
            this.registerEvents(this);
            this.logger.debug(`Posting RUN message to worker thread`);
            this.postMessage({ type: EWorkerThreadParentMessage.RUN });
            this.logger.debug('Committing power switch state change');
            this.powerSwitch.commit();
            this.logger.info(`Worker ${this.id} started successfully`);
            cb();
        }
        else {
            this.logger.warn(`Cannot start worker ${this.id}: already running`);
            cb(new WorkerAlreadyRunningError());
        }
    }
    shutdown(cb) {
        this.logger.info(`Attempting to shut down worker ${this.id}`);
        const r = this.powerSwitch.goingDown();
        if (r) {
            this.logger.debug('Power switch state changed to going down');
            this.logger.debug('Calling parent shutdown method');
            super.shutdown((err) => {
                if (err) {
                    this.logger.warn(`Error during worker ${this.id} shutdown: ${err.message}`, {
                        error: err.message,
                        stack: err.stack,
                    });
                }
                this.logger.debug('Committing power switch state change');
                this.powerSwitch.commit();
                this.logger.info(`Worker ${this.id} shut down successfully`);
                cb();
            });
        }
        else {
            this.logger.warn(`Cannot shut down worker ${this.id}: already down`);
            cb(new WorkerAlreadyDownError());
        }
    }
}
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