first commit

2023-05-19 00:42:48 +08:00
commit 53de9c6c51
243 changed files with 39485 additions and 0 deletions
@@ -0,0 +1,74 @@
+'use strict';
+
+var util = require('util');
+var QueryBase = require('./query_base');
+var jobStatus = require('../../job_status');
+
+function MainFallback() {
+    QueryBase.call(this);
+}
+util.inherits(MainFallback, QueryBase);
+
+module.exports = MainFallback;
+
+MainFallback.is = function (job) {
+    if (job.query.onsuccess || job.query.onerror) {
+        return true;
+    }
+    return false;
+};
+
+MainFallback.prototype.getNextQuery = function (job) {
+    if (this.hasOnSuccess(job)) {
+        return this.getOnSuccess(job);
+    }
+
+    if (this.hasOnError(job)) {
+        return this.getOnError(job);
+    }
+};
+
+MainFallback.prototype.getOnSuccess = function (job) {
+    if (job.status === jobStatus.DONE && job.fallback_status === jobStatus.PENDING) {
+        return job.query.onsuccess;
+    }
+};
+
+MainFallback.prototype.hasOnSuccess = function (job) {
+    return !!this.getOnSuccess(job);
+};
+
+MainFallback.prototype.getOnError = function (job) {
+    if (job.status === jobStatus.FAILED && job.fallback_status === jobStatus.PENDING) {
+        return job.query.onerror;
+    }
+};
+
+MainFallback.prototype.hasOnError = function (job) {
+    return !!this.getOnError(job);
+};
+
+MainFallback.prototype.setStatus = function (status, job, previous) {
+    var isValid = false;
+    var appliedToFallback = false;
+
+    if (previous.isValid && !previous.appliedToFallback) {
+        if (this.isFinalStatus(status) && !this.hasNextQuery(job)) {
+            isValid = this.isValidTransition(job.fallback_status, jobStatus.SKIPPED);
+
+            if (isValid) {
+                job.fallback_status = jobStatus.SKIPPED;
+                appliedToFallback = true;
+            }
+        }
+    } else if (!previous.isValid) {
+        isValid = this.isValidTransition(job.fallback_status, status);
+
+        if (isValid) {
+            job.fallback_status = status;
+            appliedToFallback = true;
+        }
+    }
+
+    return { isValid: isValid, appliedToFallback: appliedToFallback };
+};