CartoDB-SQL-API/batch/models/query/query_fallback.js
2016-06-01 10:39:01 +02:00

72 lines
2.0 KiB
JavaScript

'use strict';
var util = require('util');
var QueryBase = require('./query_base');
var Query = require('./query');
var Fallback = require('./fallback');
var jobStatus = require('../../job_status');
function QueryFallback(job, index) {
QueryBase.call(this, index);
this.init(job, index);
}
util.inherits(QueryFallback, QueryBase);
QueryFallback.is = function (query) {
if (Query.is(query)) {
return true;
}
return false;
};
QueryFallback.prototype.init = function (job, index) {
this.query = new Query(index);
if (Fallback.is(job.query.query[index])) {
this.fallback = new Fallback(index);
}
};
QueryFallback.prototype.getNextQuery = function (job) {
if (this.query.hasNextQuery(job)) {
return this.query.getNextQuery(job);
}
if (this.fallback && this.fallback.hasNextQuery(job)) {
return this.fallback.getNextQuery(job);
}
};
QueryFallback.prototype.setStatus = function (status, job, previous, errorMesssage) {
// jshint maxcomplexity: 9
var isValid = false;
var appliedToFallback = false;
if (previous.isValid && !previous.appliedToFallback) {
if (status === jobStatus.FAILED || status === jobStatus.CANCELLED) {
this.query.setStatus(jobStatus.SKIPPED, job, errorMesssage);
if (this.fallback) {
this.fallback.setStatus(jobStatus.SKIPPED, job);
}
}
} else if (!previous.isValid) {
isValid = this.query.setStatus(status, job, errorMesssage);
if (this.fallback) {
if (!isValid) {
isValid = this.fallback.setStatus(status, job, errorMesssage);
appliedToFallback = true;
} else if (isValid && this.isFinalStatus(status) && !this.fallback.hasNextQuery(job)) {
this.fallback.setStatus(jobStatus.SKIPPED, job);
}
}
}
return { isValid: isValid, appliedToFallback: appliedToFallback };
};
module.exports = QueryFallback;