domotz-remote-pawn/src/commands/network/mtr.js

Domotz Agent

/** This file is part of Domotz Agent.
  * Copyright (C) 2016  Domotz Ltd
  *
  * 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/>.
  **/

var mtr = function (message, resourceLocator) {

    const time = resourceLocator.utils.time;
    const mtr = resourceLocator.networkTools.mtr;
    const scriptsConf = resourceLocator.configuration.external_scripts;
    const engineClient = resourceLocator.engineRequest;

    const count = message.payload.count || scriptsConf.number_of_packets_for_mtr;
    const destination = message.payload.destination || scriptsConf.remote_host_for_mtr_computation;

    var results = {
        stats: {
            start: new Date(),
            end: null,
            elapsed_milliseconds: null
        },
        configuration: {
            count: count,
            destination: destination
        },
        mtr: null
    };


    function copyResults(mtrInfo) {
        results.stats.end = new Date();
        results.stats.elapsed_milliseconds = time.getDiff(results.stats);
        results.mtr = mtr.mtrInfoToDTO(mtrInfo);
        return mtrInfo;
    }


    return {
        describe: function () {
            return message.correlationId + " - MTR message; count: " + count;
        },
        execute: function (callback) {
            mtr.getMtrInfo(destination, count).
                then(copyResults).
                then(function finalize(items) {
                    callback(results);
                    return engineClient.sendWithPromise('/network/mtr', 'POST', items);
                }).
                catch(function (err) {
                    callback(null, err);
                });
        }
    };
};


module.exports.command = mtr;