cartodb/lib/assets/javascripts/builder/data/synchronization-model.js
2020-06-15 10:58:47 +08:00

164 lines
3.8 KiB
JavaScript
Executable File

var Backbone = require('backbone');
var _ = require('underscore');
var $ = require('jquery');
var MULTIPLIER = 1.2; // Multiply current interval for this number
var INTERVAL = 1500; // Interval time between poll checkings
var SYNC_GAP = 900000; // Gap (in ms) necessary to perform next synchronization
var POLLING_GAP = 15000; // Gap (in seconds) necessary to start polling and checking synchronization
/**
* Synced table model
*/
module.exports = Backbone.Model.extend({
defaults: {
name: '',
url: '',
state: '',
run_at: 0,
ran_at: 0,
retried_times: 0,
interval: 0,
error_code: 0,
error_message: '',
service_name: '',
service_item_id: '',
content_guessing: true,
type_guessing: true
},
urlRoot: function () {
var version = this._configModel.urlVersion('synchronizations');
var baseUrl = this._configModel.get('base_url');
return baseUrl + '/api/' + version + '/synchronizations/';
},
initialize: function (attrs, opts) {
if (!opts.configModel) throw new Error('configModel is required');
this._configModel = opts.configModel;
this.bind('destroy', function () {
this.unset('id');
});
this._checkState();
this.bind('change:error_code change:error_message change:state', this._checkState, this);
},
toJSON: function () {
var c = _.clone(this.attributes);
var d = {
url: c.url,
interval: c.interval,
content_guessing: c.content_guessing,
type_guessing: c.type_guessing,
create_vis: c.create_vis
};
if (c.type === 'remote') {
_.extend(d, {
remote_visualization_id: c.remote_visualization_id,
create_vis: false,
value: c.value
});
}
if (c.id !== undefined) {
d.id = c.id;
}
// Comes from a service?
if (c.service_name) {
d.service_name = c.service_name;
d.service_item_id = c.service_item_id;
}
return d;
},
_checkState: function () {
if (this.get('error_code') || this.get('error_message')) {
this.set('state', 'failure');
}
},
syncNow: function (callback) {
if (!callback) throw new Error('callback is required');
$.ajax({
url: this.url() + '/sync_now',
type: 'PUT'
}).always(callback);
},
// Checks for poll to finish
pollCheck: function (i) {
var self = this;
var interval = INTERVAL;
this.pollTimer = setInterval(request, interval);
function request () {
self.destroyCheck();
self.fetch({
error: function (m, e) {
self.set({
error_message: e.statusText || '',
state: 'failure'
});
}
});
interval = interval * MULTIPLIER;
self.pollTimer = setInterval(request, interval);
}
},
destroyCheck: function () {
clearInterval(this.pollTimer);
},
isSync: function () {
return !this.isNew() && this.get('interval') > 0;
},
isSyncing: function () {
return this.get('state') === 'syncing' || this.get('state') === 'queued';
},
canSyncNow: function () {
var ranAt = new Date(this.get('ran_at'));
var now = new Date();
var gap = SYNC_GAP; // Importer needs some time to perform the next sync, set 15 min as default.
if (this.isSyncing()) {
return false;
}
return (now.getTime() - ranAt.getTime()) > gap;
},
linkToTable: function (tableModel) {
var self = this;
if (tableModel.has('synchronization')) {
this.set(tableModel.get('synchronization'));
}
tableModel.bind('change:synchronization', function () {
self.set(tableModel.get('synchronization'));
}, tableModel);
tableModel.bind('destroy', function destroy () {
self.unbind(null, null, tableModel);
self.destroy();
}, tableModel);
}
}, {
SYNC_GAP: SYNC_GAP,
POLLING_GAP: POLLING_GAP
});