test-file.js

/*
 * Convert an ETS5 group address XML export into something usable 
 * 
 * 
 */
'use strict';

let config = {
	ets5gaFile : 'myETS5GroupAddressExport.xml',
	exportfile: 'grouplist.json',
	niceReadableTestFile: 'beautiful.json'
};



let fs = require('fs');
let xml2js = require('xml2js');
let groupAddresses=[];
let groupStructure=[];
let addressFlat = {}; // Object for referencing DPTs from addresses
// check for a file
var parser = new xml2js.Parser();
fs.readFile(__dirname + '/' + config.ets5gaFile, function(err, data) {
	if (!err) {
		parser.parseString(data, function(err, result) {
			if (!err) {
				// first level of group address structure 1/
				for (let i=0; i<result['GroupAddress-Export'].GroupRange.length; i++) {
					groupStructure.push(result['GroupAddress-Export'].GroupRange[i]);
					let node = groupStructure[i].$;
					node.l2 = [];
					// second level of group address structure /2/
					if (Array.isArray(groupStructure[i].GroupRange)) {
						for (let j= 0 ; j<groupStructure[i].GroupRange.length; j++) {
							let node2 =  groupStructure[i].GroupRange[j].$;
							node2.l3 = [];
							// third level: group addresses /255
							if (Array.isArray(groupStructure[i].GroupRange[j].GroupAddress)) {
								for (let k= 0; k<groupStructure[i].GroupRange[j].GroupAddress.length; k++) {
									let node3 = groupStructure[i].GroupRange[j].GroupAddress[k].$;
									node2.l3.push(node3);
									addressFlat[node3.Address] = {
										type: node3.DPTs || null,
										name: node3.Name
									};
								}
								node.l2.push(node2);
							}
						}
						groupAddresses.push(node); // push only if it has at least one subgroup
					}
					
				}
				fs.writeFile(__dirname + '/'+ config.niceReadableTestFile,  JSON.stringify(groupAddresses, undefined, 4), 'utf-8');
				fs.writeFile(__dirname + '/'+ config.exportfile, JSON.stringify(addressFlat, undefined, 4), 'utf-8');
				console.log('done.');
			} else {
				console.log('Error parsing XML');
			}
		});
	} else {
		console.log('Error opening XML file at: ' + __dirname + '/' + config.ets5gaFile);
	}
});