92 lines
2.7 KiB
JavaScript
92 lines
2.7 KiB
JavaScript
'use strict';
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var util = require('util');
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var JobBase = require('./job-base');
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var jobStatus = require('../job-status');
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function JobMultiple(jobDefinition) {
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JobBase.call(this, jobDefinition);
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this.init();
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}
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util.inherits(JobMultiple, JobBase);
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module.exports = JobMultiple;
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JobMultiple.is = function (query) {
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if (!Array.isArray(query)) {
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return false;
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}
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// 1. From user: ['select * from ...', 'select * from ...']
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// 2. From redis: [ { query: 'select * from ...', status: 'pending' },
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// { query: 'select * from ...', status: 'pending' } ]
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for (var i = 0; i < query.length; i++) {
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if (typeof query[i] !== 'string') {
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if (typeof query[i].query !== 'string') {
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return false;
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}
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}
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}
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return true;
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};
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JobMultiple.prototype.init = function () {
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if (!this.data.status) {
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this.data.status = jobStatus.PENDING;
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}
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for (var i = 0; i < this.data.query.length; i++) {
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if (!this.data.query[i].query && !this.data.query[i].status) {
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this.data.query[i] = {
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query: this.data.query[i],
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status: jobStatus.PENDING
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};
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}
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}
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};
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JobMultiple.prototype.getNextQuery = function () {
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for (var i = 0; i < this.data.query.length; i++) {
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if (this.data.query[i].status === jobStatus.PENDING) {
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return this.data.query[i].query;
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}
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}
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};
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JobMultiple.prototype.setQuery = function (query) {
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if (!JobMultiple.is(query)) {
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throw new Error('You must indicate a valid SQL');
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}
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JobMultiple.super_.prototype.setQuery.call(this, query);
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};
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JobMultiple.prototype.setStatus = function (finalStatus, errorMesssage) {
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var initialStatus = this.data.status;
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// if transition is to "done" and there are more queries to run
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// then job status must be "pending" instead of "done"
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// else job status transition to done (if "running")
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if (finalStatus === jobStatus.DONE && this.hasNextQuery()) {
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JobMultiple.super_.prototype.setStatus.call(this, jobStatus.PENDING);
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} else {
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JobMultiple.super_.prototype.setStatus.call(this, finalStatus, errorMesssage);
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}
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for (var i = 0; i < this.data.query.length; i++) {
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var isValid = JobMultiple.super_.prototype.isValidTransition(this.data.query[i].status, finalStatus);
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if (isValid) {
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this.data.query[i].status = finalStatus;
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if (finalStatus === jobStatus.FAILED && errorMesssage) {
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this.data.query[i].failed_reason = errorMesssage;
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}
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return;
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}
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}
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throw new Error('Cannot set status from ' + initialStatus + ' to ' + finalStatus);
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};
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