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

"use strict";
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var __importDefault = (this && this.__importDefault) || function (mod) {
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};
Object.defineProperty(exports, "__esModule", { value: true });
exports.findAndLockNextJob = void 0;
var debug_1 = __importDefault(require("debug"));
var utils_1 = require("../utils");
var 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
 */
var findAndLockNextJob = function (jobName, definition) {
    return __awaiter(this, void 0, void 0, function () {
        var now, lockDeadline, s, JOB_PROCESS_WHERE_QUERY, JOB_PROCESS_SET_QUERY, JOB_RETURN_QUERY, result, job;
        return __generator(this, function (_a) {
            switch (_a.label) {
                case 0:
                    now = new Date();
                    lockDeadline = new Date(Date.now().valueOf() - definition.lockLifetime);
                    debug('_findAndLockNextJob(%s, [Function])', jobName);
                    s = this._mdb.s || this._mdb.db.s;
                    if (!(s.topology.connections && s.topology.connections().length === 0 && !this._mongoUseUnifiedTopology)) return [3 /*break*/, 1];
                    if (s.topology.autoReconnect && !s.topology.isDestroyed()) {
                        // Continue processing but notify that Agenda has lost the connection
                        debug('Missing MongoDB connection, not attempting to find and lock a job');
                        this.emit('error', new Error('Lost MongoDB connection'));
                    }
                    else {
                        // No longer recoverable
                        debug('topology.autoReconnect: %s, topology.isDestroyed(): %s', s.topology.autoReconnect, s.topology.isDestroyed());
                        throw new Error('MongoDB connection is not recoverable, application restart required');
                    }
                    return [3 /*break*/, 3];
                case 1:
                    JOB_PROCESS_WHERE_QUERY = {
                        $and: [{
                                name: jobName,
                                disabled: { $ne: true }
                            }, {
                                $or: [{
                                        lockedAt: { $eq: null },
                                        nextRunAt: { $lte: this._nextScanAt }
                                    }, {
                                        lockedAt: { $lte: lockDeadline }
                                    }]
                            }]
                    };
                    JOB_PROCESS_SET_QUERY = { $set: { lockedAt: now } };
                    JOB_RETURN_QUERY = { returnOriginal: false, sort: this._sort };
                    return [4 /*yield*/, this._collection.findOneAndUpdate(JOB_PROCESS_WHERE_QUERY, JOB_PROCESS_SET_QUERY, JOB_RETURN_QUERY)];
                case 2:
                    result = _a.sent();
                    job = void 0;
                    if (result.value) {
                        debug('found a job available to lock, creating a new job on Agenda with id [%s]', result.value._id);
                        job = utils_1.createJob(this, result.value);
                    }
                    return [2 /*return*/, job];
                case 3: return [2 /*return*/];
            }
        });
    });
};
exports.findAndLockNextJob = findAndLockNextJob;