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netdata_netdata/node.d/fronius.node.js
2018-09-30 02:36:42 +03:00

400 lines
17 KiB
JavaScript

"use strict";
// SPDX-License-Identifier: GPL-3.0-or-later
// This program will connect to one or more Fronius Symo Inverters.
// to get the Solar Power Generated (current, today).
// example configuration in netdata/conf.d/node.d/fronius.conf.md
require("url");
require("http");
var netdata = require("netdata");
netdata.debug("loaded " + __filename + " plugin");
var fronius = {
name: "Fronius",
enable_autodetect: false,
update_every: 5,
base_priority: 60000,
charts: {},
powerGridId: "p_grid",
powerPvId: "p_pv",
powerAccuId: "p_akku", // not my typo! Using the ID from the AP
consumptionLoadId: "p_load",
autonomyId: "rel_autonomy",
consumptionSelfId: "rel_selfconsumption",
solarConsumptionId: "solar_consumption",
energyTodayId: "e_day",
energyYearId: "e_year",
createBasicDimension: function (id, name, divisor) {
return {
id: id, // the unique id of the dimension
name: name, // the name of the dimension
algorithm: netdata.chartAlgorithms.absolute,// the id of the netdata algorithm
multiplier: 1, // the multiplier
divisor: divisor, // the divisor
hidden: false // is hidden (boolean)
};
},
// Gets the site power chart. Will be created if not existing.
getSitePowerChart: function (service, suffix) {
var id = this.getChartId(service, suffix);
var chart = fronius.charts[id];
if (fronius.isDefined(chart)) return chart;
var dim = {};
dim[fronius.powerGridId] = this.createBasicDimension(fronius.powerGridId, "grid", 1);
dim[fronius.powerPvId] = this.createBasicDimension(fronius.powerPvId, "photovoltaics", 1);
dim[fronius.powerAccuId] = this.createBasicDimension(fronius.powerAccuId, "accumulator", 1);
chart = {
id: id, // the unique id of the chart
name: "", // the unique name of the chart
title: service.name + " Current Site Power", // the title of the chart
units: "W", // the units of the chart dimensions
family: "power", // the family of the chart
context: "fronius.power", // the context of the chart
type: netdata.chartTypes.area, // the type of the chart
priority: fronius.base_priority + 1, // the priority relative to others in the same family
update_every: service.update_every, // the expected update frequency of the chart
dimensions: dim
};
chart = service.chart(id, chart);
fronius.charts[id] = chart;
return chart;
},
// Gets the site consumption chart. Will be created if not existing.
getSiteConsumptionChart: function (service, suffix) {
var id = this.getChartId(service, suffix);
var chart = fronius.charts[id];
if (fronius.isDefined(chart)) return chart;
var dim = {};
dim[fronius.consumptionLoadId] = this.createBasicDimension(fronius.consumptionLoadId, "load", 1);
chart = {
id: id, // the unique id of the chart
name: "", // the unique name of the chart
title: service.name + " Current Load", // the title of the chart
units: "W", // the units of the chart dimensions
family: "consumption", // the family of the chart
context: "fronius.consumption", // the context of the chart
type: netdata.chartTypes.area, // the type of the chart
priority: fronius.base_priority + 2, // the priority relative to others in the same family
update_every: service.update_every, // the expected update frequency of the chart
dimensions: dim
};
chart = service.chart(id, chart);
fronius.charts[id] = chart;
return chart;
},
// Gets the site consumption chart. Will be created if not existing.
getSiteAutonomyChart: function (service, suffix) {
var id = this.getChartId(service, suffix);
var chart = fronius.charts[id];
if (fronius.isDefined(chart)) return chart;
var dim = {};
dim[fronius.autonomyId] = this.createBasicDimension(fronius.autonomyId, "autonomy", 1);
dim[fronius.consumptionSelfId] = this.createBasicDimension(fronius.consumptionSelfId, "self_consumption", 1);
dim[fronius.solarConsumptionId] = this.createBasicDimension(fronius.solarConsumptionId, "solar_consumption", 1);
chart = {
id: id, // the unique id of the chart
name: "", // the unique name of the chart
title: service.name + " Current Autonomy", // the title of the chart
units: "%", // the units of the chart dimensions
family: "autonomy", // the family of the chart
context: "fronius.autonomy", // the context of the chart
type: netdata.chartTypes.area, // the type of the chart
priority: fronius.base_priority + 3, // the priority relative to others in the same family
update_every: service.update_every, // the expected update frequency of the chart
dimensions: dim
};
chart = service.chart(id, chart);
fronius.charts[id] = chart;
return chart;
},
// Gets the site energy chart for today. Will be created if not existing.
getSiteEnergyTodayChart: function (service, suffix) {
var chartId = this.getChartId(service, suffix);
var chart = fronius.charts[chartId];
if (fronius.isDefined(chart)) return chart;
var dim = {};
dim[fronius.energyTodayId] = this.createBasicDimension(fronius.energyTodayId, "today", 1000);
chart = {
id: chartId, // the unique id of the chart
name: "", // the unique name of the chart
title: service.name + " Energy production for today",// the title of the chart
units: "kWh", // the units of the chart dimensions
family: "energy", // the family of the chart
context: "fronius.energy.today", // the context of the chart
type: netdata.chartTypes.area, // the type of the chart
priority: fronius.base_priority + 4, // the priority relative to others in the same family
update_every: service.update_every, // the expected update frequency of the chart
dimensions: dim
};
chart = service.chart(chartId, chart);
fronius.charts[chartId] = chart;
return chart;
},
// Gets the site energy chart for today. Will be created if not existing.
getSiteEnergyYearChart: function (service, suffix) {
var chartId = this.getChartId(service, suffix);
var chart = fronius.charts[chartId];
if (fronius.isDefined(chart)) return chart;
var dim = {};
dim[fronius.energyYearId] = this.createBasicDimension(fronius.energyYearId, "year", 1000);
chart = {
id: chartId, // the unique id of the chart
name: "", // the unique name of the chart
title: service.name + " Energy production for this year",// the title of the chart
units: "kWh", // the units of the chart dimensions
family: "energy", // the family of the chart
context: "fronius.energy.year", // the context of the chart
type: netdata.chartTypes.area, // the type of the chart
priority: fronius.base_priority + 5, // the priority relative to others in the same family
update_every: service.update_every, // the expected update frequency of the chart
dimensions: dim
};
chart = service.chart(chartId, chart);
fronius.charts[chartId] = chart;
return chart;
},
// Gets the inverter power chart. Will be created if not existing.
// Needs the array of inverters in order to create a chart with all inverters as dimensions
getInverterPowerChart: function (service, suffix, inverters) {
var chartId = this.getChartId(service, suffix);
var chart = fronius.charts[chartId];
if (fronius.isDefined(chart)) return chart;
var dim = {};
for (var key in inverters) {
if (inverters.hasOwnProperty(key)) {
var name = key;
if (!isNaN(key)) name = "inverter_" + key;
dim[key] = this.createBasicDimension("inverter_" + key, name, 1);
}
}
chart = {
id: chartId, // the unique id of the chart
name: "", // the unique name of the chart
title: service.name + " Current Inverter Output",// the title of the chart
units: "W", // the units of the chart dimensions
family: "inverters", // the family of the chart
context: "fronius.inverter.output", // the context of the chart
type: netdata.chartTypes.stacked, // the type of the chart
priority: fronius.base_priority + 6, // the priority relative to others in the same family
update_every: service.update_every, // the expected update frequency of the chart
dimensions: dim
};
chart = service.chart(chartId, chart);
fronius.charts[chartId] = chart;
return chart;
},
processResponse: function (service, content) {
var json = fronius.convertToJson(content);
if (json === null) return;
// add the service
service.commit();
var chartDefinitions = fronius.parseCharts(service, json);
var chartCount = chartDefinitions.length;
while (chartCount--) {
var chartObj = chartDefinitions[chartCount];
service.begin(chartObj.chart);
var dimCount = chartObj.dimensions.length;
while (dimCount--) {
var dim = chartObj.dimensions[dimCount];
service.set(dim.name, dim.value);
}
service.end();
}
},
parseCharts: function (service, json) {
var site = json.Body.Data.Site;
return [
this.parsePowerChart(service, site),
this.parseConsumptionChart(service, site),
this.parseAutonomyChart(service, site),
this.parseEnergyTodayChart(service, site),
this.parseEnergyYearChart(service, site),
this.parseInverterChart(service, json.Body.Data.Inverters)
];
},
parsePowerChart: function (service, site) {
return this.getChart(this.getSitePowerChart(service, "power"),
[
this.getDimension(this.powerGridId, Math.round(site.P_Grid)),
this.getDimension(this.powerPvId, Math.round(Math.max(site.P_PV, 0))),
this.getDimension(this.powerAccuId, Math.round(site.P_Akku))
]
);
},
parseConsumptionChart: function (service, site) {
return this.getChart(this.getSiteConsumptionChart(service, "consumption"),
[this.getDimension(this.consumptionLoadId, Math.round(Math.abs(site.P_Load)))]
);
},
parseAutonomyChart: function (service, site) {
var selfConsumption = site.rel_SelfConsumption;
var solarConsumption = 0;
var load = Math.abs(site.P_Load);
var power = Math.max(site.P_PV, 0);
if (power <= 0) solarConsumption = 0;
else if (load >= power) solarConsumption = 100;
else solarConsumption = 100 / power * load;
return this.getChart(this.getSiteAutonomyChart(service, "autonomy"),
[
this.getDimension(this.autonomyId, Math.round(site.rel_Autonomy)),
this.getDimension(this.consumptionSelfId, Math.round(selfConsumption === null ? 100 : selfConsumption)),
this.getDimension(this.solarConsumptionId, Math.round(solarConsumption))
]
);
},
parseEnergyTodayChart: function (service, site) {
return this.getChart(this.getSiteEnergyTodayChart(service, "energy.today"),
[this.getDimension(this.energyTodayId, Math.round(Math.max(site.E_Day, 0)))]
);
},
parseEnergyYearChart: function (service, site) {
return this.getChart(this.getSiteEnergyYearChart(service, "energy.year"),
[this.getDimension(this.energyYearId, Math.round(Math.max(site.E_Year, 0)))]
);
},
parseInverterChart: function (service, inverters) {
var dimensions = [];
for (var key in inverters) {
if (inverters.hasOwnProperty(key)) {
dimensions.push(this.getDimension(key, Math.round(inverters[key].P)));
}
}
return this.getChart(this.getInverterPowerChart(service, "inverters.output", inverters), dimensions);
},
getDimension: function (name, value) {
return {
name: name,
value: value
};
},
getChart: function (chart, dimensions) {
return {
chart: chart,
dimensions: dimensions
};
},
getChartId: function (service, suffix) {
return "fronius_" + service.name + "." + suffix;
},
convertToJson: function (httpBody) {
if (httpBody === null) return null;
var json = httpBody;
// can't parse if it's already a json object,
// the check enables easier testing if the httpBody is already valid JSON.
if (typeof httpBody !== "object") {
try {
json = JSON.parse(httpBody);
} catch (error) {
netdata.error("fronius: Got a response, but it is not valid JSON. Ignoring. Error: " + error.message);
return null;
}
}
return this.isResponseValid(json) ? json : null;
},
// some basic validation
isResponseValid: function (json) {
if (this.isUndefined(json.Body)) return false;
if (this.isUndefined(json.Body.Data)) return false;
if (this.isUndefined(json.Body.Data.Site)) return false;
return this.isDefined(json.Body.Data.Inverters);
},
// module.serviceExecute()
// this function is called only from this module
// its purpose is to prepare the request and call
// netdata.serviceExecute()
serviceExecute: function (name, uri, update_every) {
netdata.debug(this.name + ": " + name + ": url: " + uri + ", update_every: " + update_every);
var service = netdata.service({
name: name,
request: netdata.requestFromURL("http://" + uri),
update_every: update_every,
module: this
});
service.execute(this.processResponse);
},
configure: function (config) {
if (fronius.isUndefined(config.servers)) return 0;
var added = 0;
var len = config.servers.length;
while (len--) {
var server = config.servers[len];
if (fronius.isUndefined(server.update_every)) server.update_every = this.update_every;
if (fronius.areUndefined([server.name, server.hostname, server.api_path])) continue;
var url = server.hostname + server.api_path;
this.serviceExecute(server.name, url, server.update_every);
added++;
}
return added;
},
// module.update()
// this is called repeatedly to collect data, by calling
// netdata.serviceExecute()
update: function (service, callback) {
service.execute(function (serv, data) {
service.module.processResponse(serv, data);
callback();
});
},
isUndefined: function (value) {
return typeof value === "undefined";
},
areUndefined: function (valueArray) {
var i = 0;
for (i; i < valueArray.length; i++) {
if (this.isUndefined(valueArray[i])) return true;
}
return false;
},
isDefined: function (value) {
return typeof value !== "undefined";
}
};
module.exports = fronius;