66 lines
1.8 KiB
JavaScript
66 lines
1.8 KiB
JavaScript
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var redis = require("redis");
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var util = require('util');
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var EventEmitter = require('events').EventEmitter;
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var http = require("http");
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var redisprefix = "flukso:";
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var Flukso = function(hostname, pathname) {
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var self = this;
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var redisClient = redis.createClient();
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var regexp = /([0-9]+)\]\]$/; // /\(([0-9]+) hosts* up\)/;
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redisClient.on("connect", function () {
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console.log("connected to redis");
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self.emit('ready');
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});
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this.pollPower = function() {
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http.request({ host: hostname, path: pathname }, function(response) {
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var str = '';
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response.on('data', function(chunk) {
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str += chunk;
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});
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response.on('end', function () {
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// console.log("http received: " + str);
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var matches = regexp.exec(str);
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if(matches != null && matches.length == 2) {
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var time = Date.now();
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redisClient.zremrangebyscore(redisprefix + 'power', "-inf", time - 7*24*60*1000);
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var num = matches[1];
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redisClient.zadd(redisprefix + 'power', time, time + "|" + num, function() {
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self.emit('done', parseInt(num));
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});
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}
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});
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}).end();
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};
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// this.getHistory = function(start, end, callback) {
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//
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// redisClient.zrangebyscore(redisprefix + 'power', start, end, function(err, replies) {
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// var data = [];
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//
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// replies.forEach(function (reply, i) {
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// var line = reply.split('|');
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// data.push( { at: moment(parseInt(line[0])).format(), value: line[1] });
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// });
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//
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// callback(data);
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// });
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// };
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};
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util.inherits(Flukso, EventEmitter);
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module.exports = Flukso;
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