domotz-remote-pawn/src/snmp/common.js

Domotz Agent

/** This file is part of Domotz Agent.
 * Copyright (C) 2016  Domotz UK LLP
 *
 * Domotz Agent 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.
 *
 * Domotz Agent 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 Domotz Agent.  If not, see <http://www.gnu.org/licenses/>.
 **/
/**
 *
 * Created by Iacopo Papalini <iacopo@domotz.com> on 11/04/16.
 */


module.exports.transformer = function (value) {
    "use strict";
    return {
        'string': function (o) {
            return '' + o;
        },
        'mac': function (o) {
            var byteList = [];
            for (var i = 0; i < o.length; i++) {
                var tmpByte = o.readUInt8(i);
                var tmpStr = tmpByte.toString(16);
                if (tmpStr.length < 2) {
                    tmpStr = '0' + tmpStr;
                }
                byteList.push(tmpStr);
            }
            return byteList.join(':').toUpperCase();
        },
        'int': function (o) {
            return o;
        }
    }[value];
};

module.exports.extractOids = function(oids_mapping) {
    "use strict";
    var oids = [];
    for (var oid in oids_mapping) {
        if (oids_mapping.hasOwnProperty(oid)) {
            oids.push(oid);
        }
    }
    return oids;
};

module.exports.isEmpty = function(obj) {
    for(var prop in obj) {
        if(obj.hasOwnProperty(prop)) {
            return false;
        }
    }
    return JSON.stringify(obj) === JSON.stringify({});
};