thing-it-device-smart-meter/smartMeter.js

[thing-it-node] Device Plugin to demo Smart Meter functionality.

module.exports = {
    metadata: {
        family: 'smartMeter',
        plugin: 'smartMeter',
        label: 'Generic Smart Meter',
        manufacturer: 'Generic',
        discoverable: false,
        tangible: true,
        additionalSoftware: [],
        actorTypes: [],
        sensorTypes: [],
        state: [{
            id: "energyConsumption",
            label: "Energy Consumption",
            type: {
                id: "decimal"
            },
            unit: 'kWh'
        }, {
            id: "lastReset",
            label: "Last Reset",
            type: {
                id: "time"
            }
        }],
        services: [{
            id: "reset", label: "Reset", parameters: []
        }],
        configuration: []
    },
    create: function () {
        return new SmartMeter();
    },
    discovery: function () {
        return new SmartMeterDiscovery();
    }
};

var q = require('q');
var _ = require('lodash');

function SmartMeterDiscovery() {
    SmartMeterDiscovery.prototype.start = function () {
    };

    SmartMeterDiscovery.prototype.stop = function () {
    };
}

/**
 *
 * @constructor
 */
function SmartMeter() {
    SmartMeter.prototype.start = function () {
        var deferred = q.defer();

        this.state = {energyConsumption: 0};

        if (this.isSimulated()) {
            this.interval = setInterval(function () {
                this.state.energyConsumption += 0.01 + 0.001 * new Date().getTime() % 5;

                this.publishStateChange();
            }.bind(this), 10000);

            deferred.resolve();
        } else {

            deferred.resolve();
        }

        return deferred.promise;
    };

    /**
     *
     */
    SmartMeter.prototype.stop = function () {
        var deferred = q.defer();

        if (this.isSimulated()) {
            if (this.interval) {
                clearInterval(this.interval);
            }
        } else {
        }

        deferred.resolve();

        return deferred.promise;
    };

    /**
     *
     */
    SmartMeter.prototype.reset = function () {
        this.state.energyConsumption = 0;

        this.publishStateChange();
    };

    /**
     *
     */
    SmartMeter.prototype.getState = function () {
        return this.state;
    };

    /**
     *
     */
    SmartMeter.prototype.setState = function () {
    };
}