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-rwxr-xr-xnode.d/sma_webbox.node.js237
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diff --git a/node.d/sma_webbox.node.js b/node.d/sma_webbox.node.js
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+'use strict';
+
+// This program will connect to one or more SMA Sunny Webboxes
+// to get the Solar Power Generated (current, today, total).
+
+// example configuration in /etc/netdata/sma_webbox.conf
+/*
+{
+ "enable_autodetect": false,
+ "update_every": 5,
+ "servers": [
+ {
+ "name": "plant1",
+ "hostname": "10.0.1.1",
+ "update_every": 10
+ },
+ {
+ "name": "plant2",
+ "hostname": "10.0.2.1",
+ "update_every": 15
+ }
+ ]
+}
+*/
+
+var url = require('url');
+var http = require('http');
+var netdata = require('netdata');
+
+if(netdata.options.DEBUG === true) netdata.debug('loaded ' + __filename + ' plugin');
+
+var webbox = {
+ name: __filename,
+ enable_autodetect: true,
+ update_every: 1,
+ base_priority: 60000,
+ charts: {},
+
+ processResponse: function(service, data) {
+ if(data !== null) {
+ var r = JSON.parse(data);
+
+ var d = {
+ 'GriPwr': {
+ unit: null,
+ value: null
+ },
+ 'GriEgyTdy': {
+ unit: null,
+ value: null
+ },
+ 'GriEgyTot': {
+ unit: null,
+ value: null
+ }
+ };
+
+ // parse the webbox response
+ // and put it in our d object
+ var found = 0;
+ var len = r.result.overview.length;
+ while(len--) {
+ var e = r.result.overview[len];
+ if(typeof(d[e.meta]) !== 'undefined') {
+ found++;
+ d[e.meta].value = e.value;
+ d[e.meta].unit = e.unit;
+ }
+ }
+
+ // add the service
+ if(found > 0 && service.added !== true)
+ service.commit();
+
+ // Grid Current Power Chart
+ if(d['GriPwr'].value !== null) {
+ var id = 'sma_webbox_' + service.name + '.current';
+ var chart = webbox.charts[id];
+
+ if(typeof chart === 'undefined') {
+ chart = {
+ id: id, // the unique id of the chart
+ name: '', // the unique name of the chart
+ title: service.name + ' Current Grid Power', // the title of the chart
+ units: d['GriPwr'].unit, // the units of the chart dimensions
+ family: 'now', // the family of the chart
+ context: 'sma_webbox.grid.power', // the context of the chart
+ type: netdata.chartTypes.area, // the type of the chart
+ priority: webbox.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: {
+ 'GriPwr': {
+ id: 'GriPwr', // the unique id of the dimension
+ name: 'power', // the name of the dimension
+ algorithm: netdata.chartAlgorithms.absolute,// the id of the netdata algorithm
+ multiplier: 1, // the multiplier
+ divisor: 1, // the divisor
+ hidden: false // is hidden (boolean)
+ }
+ }
+ };
+
+ chart = service.chart(id, chart);
+ webbox.charts[id] = chart;
+ }
+
+ service.begin(chart);
+ service.set('GriPwr', Math.round(d['GriPwr'].value));
+ service.end();
+ }
+
+ if(d['GriEgyTdy'].value !== null) {
+ var id = 'sma_webbox_' + service.name + '.today';
+ var chart = webbox.charts[id];
+
+ if(typeof chart === 'undefined') {
+ chart = {
+ id: id, // the unique id of the chart
+ name: '', // the unique name of the chart
+ title: service.name + ' Today Grid Power', // the title of the chart
+ units: d['GriEgyTdy'].unit, // the units of the chart dimensions
+ family: 'today', // the family of the chart
+ context: 'sma_webbox.grid.power.today', // the context of the chart
+ type: netdata.chartTypes.area, // the type of the chart
+ priority: webbox.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: {
+ 'GriEgyTdy': {
+ id: 'GriEgyTdy', // the unique id of the dimension
+ name: 'power', // the name of the dimension
+ algorithm: netdata.chartAlgorithms.absolute,// the id of the netdata algorithm
+ multiplier: 1, // the multiplier
+ divisor: 1000, // the divisor
+ hidden: false // is hidden (boolean)
+ }
+ }
+ };
+
+ chart = service.chart(id, chart);
+ webbox.charts[id] = chart;
+ }
+
+ service.begin(chart);
+ service.set('GriEgyTdy', Math.round(d['GriEgyTdy'].value * 1000));
+ service.end();
+ }
+
+ if(d['GriEgyTot'].value !== null) {
+ var id = 'sma_webbox_' + service.name + '.total';
+ var chart = webbox.charts[id];
+
+ if(typeof chart === 'undefined') {
+ chart = {
+ id: id, // the unique id of the chart
+ name: '', // the unique name of the chart
+ title: service.name + ' Total Grid Power', // the title of the chart
+ units: d['GriEgyTot'].unit, // the units of the chart dimensions
+ family: 'total', // the family of the chart
+ context: 'sma_webbox.grid.power.total', // the context of the chart
+ type: netdata.chartTypes.area, // the type of the chart
+ priority: webbox.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: {
+ 'GriEgyTot': {
+ id: 'GriEgyTot', // the unique id of the dimension
+ name: 'power', // the name of the dimension
+ algorithm: netdata.chartAlgorithms.absolute,// the id of the netdata algorithm
+ multiplier: 1, // the multiplier
+ divisor: 1000, // the divisor
+ hidden: false // is hidden (boolean)
+ }
+ }
+ };
+
+ chart = service.chart(id, chart);
+ webbox.charts[id] = chart;
+ }
+
+ service.begin(chart);
+ service.set('GriEgyTot', Math.round(d['GriEgyTot'].value * 1000));
+ service.end();
+ }
+ }
+ },
+
+ // module.serviceExecute()
+ // this function is called only from this module
+ // its purpose is to prepare the request and call
+ // netdata.serviceExecute()
+ serviceExecute: function(name, hostname, update_every) {
+ if(netdata.options.DEBUG === true) netdata.debug(this.name + ': ' + name + ': hostname: ' + hostname + ', update_every: ' + update_every);
+
+ var service = netdata.service({
+ name: name,
+ request: netdata.requestFromURL('http://' + hostname + '/rpc'),
+ update_every: update_every,
+ module: this
+ });
+ service.postData = 'RPC={"proc":"GetPlantOverview","format":"JSON","version":"1.0","id":"1"}';
+ service.request.method = 'POST';
+ service.request.headers['Content-Length'] = service.postData.length;
+
+ service.execute(this.processResponse);
+ },
+
+ configure: function(config) {
+ var added = 0;
+
+ if(typeof(config.servers) !== 'undefined') {
+ var len = config.servers.length;
+ while(len--) {
+ if(typeof config.servers[len].update_every === 'undefined')
+ config.servers[len].update_every = this.update_every;
+
+ if(config.servers[len].update_every < 5)
+ config.servers[len].update_every = 5;
+
+ this.serviceExecute(config.servers[len].name, config.servers[len].hostname, config.servers[len].update_every);
+ added++;
+ }
+ }
+
+ return added;
+ },
+
+ // module.update()
+ // this is called repeatidly to collect data, by calling
+ // netdata.serviceExecute()
+ update: function(service, callback) {
+ service.execute(function(serv, data) {
+ service.module.processResponse(serv, data);
+ callback();
+ });
+ },
+};
+
+module.exports = webbox;