75 lines
1.9 KiB
JavaScript
75 lines
1.9 KiB
JavaScript
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'use strict';
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var util = require('util');
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var QueryBase = require('./query_base');
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var jobStatus = require('../../job_status');
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function MainFallback() {
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QueryBase.call(this);
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}
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util.inherits(MainFallback, QueryBase);
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module.exports = MainFallback;
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MainFallback.is = function (job) {
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if (job.query.onsuccess || job.query.onerror) {
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return true;
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}
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return false;
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};
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MainFallback.prototype.getNextQuery = function (job) {
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if (this.hasOnSuccess(job)) {
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return this.getOnSuccess(job);
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}
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if (this.hasOnError(job)) {
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return this.getOnError(job);
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}
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};
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MainFallback.prototype.getOnSuccess = function (job) {
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if (job.status === jobStatus.DONE && job.fallback_status === jobStatus.PENDING) {
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return job.query.onsuccess;
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}
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};
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MainFallback.prototype.hasOnSuccess = function (job) {
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return !!this.getOnSuccess(job);
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};
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MainFallback.prototype.getOnError = function (job) {
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if (job.status === jobStatus.FAILED && job.fallback_status === jobStatus.PENDING) {
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return job.query.onerror;
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}
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};
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MainFallback.prototype.hasOnError = function (job) {
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return !!this.getOnError(job);
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};
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MainFallback.prototype.setStatus = function (status, job, previous) {
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var isValid = false;
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var appliedToFallback = false;
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if (previous.isValid && !previous.appliedToFallback) {
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if (this.isFinalStatus(status) && !this.hasNextQuery(job)) {
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isValid = this.isValidTransition(job.fallback_status, jobStatus.SKIPPED);
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if (isValid) {
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job.fallback_status = jobStatus.SKIPPED;
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appliedToFallback = true;
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}
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}
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} else if (!previous.isValid) {
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isValid = this.isValidTransition(job.fallback_status, status);
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if (isValid) {
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job.fallback_status = status;
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appliedToFallback = true;
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}
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}
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return { isValid: isValid, appliedToFallback: appliedToFallback };
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};
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