agenda/dist/agenda/find-and-lock-next-job.js

Light weight job scheduler for Node.js

"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.findAndLockNextJob = void 0;
const debug_1 = __importDefault(require("debug"));
const utils_1 = require("../utils");
const mongodb_1 = require("mongodb");
const debug = debug_1.default("agenda:internal:_findAndLockNextJob");
/**
 * Find and lock jobs
 * @name Agenda#findAndLockNextJob
 * @function
 * @param jobName name of job to try to lock
 * @param definition definition used to tell how job is run
 * @access protected
 * @caller jobQueueFilling() only
 */
const findAndLockNextJob = function (jobName, definition) {
    return __awaiter(this, void 0, void 0, function* () {
        const now = new Date();
        const lockDeadline = new Date(Date.now().valueOf() - definition.lockLifetime);
        debug("_findAndLockNextJob(%s, [Function])", jobName);
        const JOB_PROCESS_WHERE_QUERY = {
            $and: [
                {
                    name: jobName,
                    disabled: { $ne: true },
                },
                {
                    $or: [
                        {
                            lockedAt: { $eq: null },
                            nextRunAt: { $lte: this._nextScanAt },
                        },
                        {
                            lockedAt: { $lte: lockDeadline },
                        },
                    ],
                },
            ],
        };
        /**
         * Query used to set a job as locked
         * @type {{$set: {lockedAt: Date}}}
         */
        const JOB_PROCESS_SET_QUERY = { $set: { lockedAt: now } };
        /**
         * Query used to affect what gets returned
         * @type {{returnOriginal: boolean, sort: object}}
         */
        const JOB_RETURN_QUERY = { returnDocument: mongodb_1.ReturnDocument.AFTER, sort: this._sort };
        // Find ONE and ONLY ONE job and set the 'lockedAt' time so that job begins to be processed
        const result = yield this._collection.findOneAndUpdate(JOB_PROCESS_WHERE_QUERY, JOB_PROCESS_SET_QUERY, JOB_RETURN_QUERY);
        let job = undefined;
        if (result.value) {
            debug("found a job available to lock, creating a new job on Agenda with id [%s]", result.value._id);
            // @ts-ignore
            job = utils_1.createJob(this, result.value);
        }
        return job;
    });
};
exports.findAndLockNextJob = findAndLockNextJob;
//# sourceMappingURL=find-and-lock-next-job.js.map