68ee970d
 Renato De Donato
jsdatachecker
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/*
** This file is part of ChartViz.
**
** ChartViz is free software: you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation, either version 3 of the License, or
** (at your option) any later version.
**
** ChartViz is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with ChartViz. If not, see <http://www.gnu.org/licenses/>.
**
** Copyright (C) 2016 ChartViz - Donato Pirozzi (donatopirozzi@gmail.com)
** Distributed under the GNU GPL v3. For full terms see the file LICENSE.
** License: http://www.gnu.org/licenses/gpl.html GPL version 3 or higher
**/
//This JS class allows the connection to a ckan platform.
function CKANApi() {
}//EndFunction.
CKANApi.prototype = (function() {
var _arrUtil = new ArrayUtils();
var httpGetAsync = function(theUrl, callback) {
var xhttp = new XMLHttpRequest();
xhttp.onreadystatechange = function() {
if (xhttp.readyState == 4 && xhttp.status == 200)
_processListOfDataset(xhttp.responseText);
};
xhttp.open("GET", theUrl, true);//true for asynchronous.
xhttp.send(null);
};//EndFunction.
var _processListOfDataset = function(requestContent) {
var jsonContent = JSON.parse(requestContent);
if (jsonContent.success == false) return;
var ckanresults = jsonContent.result.results;
var datasetsCSV = [];
var arrFormatsSummary = [];
for (var i=0; i<ckanresults.length; i++) {
var result = ckanresults[i];
var resources = result.resources;
for (var j=0; j<resources.length; j++) {
var resource = resources[j];
var resourceFormat = resource.format;
_arrUtil.testAndIncrement(arrFormatsSummary, resourceFormat);
if (resourceFormat == "CSV")
datasetsCSV.push({ id: resource.id, description: resource.description, url: resource.url });
//debugger;
}
}//EndFor.
console.log("...");
};//EndFunction.
//PUBLIC CLASS CONTENT.
return {
constructor: CKANApi,
listDatasets: function (urlBase) {
httpGetAsync(urlBase);
}//EndFunction.
};
})();
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