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server.js
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server.js
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// Module dependencies.
var application_root = __dirname;
var express = require("express");
var app = express();
var fs = require('fs');
app.configure(function() {
app.use(express.static(__dirname + '/app'));
app.use(express.logger('dev')); // log every request to the console
app.use(express.bodyParser()); // pull information from html in POST
app.use(express.methodOverride()); // simulate DELETE and PUT
});
var io = require('socket.io').listen(app.listen(9000));
io.sockets.on('connection', function (socket) {
fs.watchFile('data.json', {
persistent: true,
interval: 500
},function(data){
fs.readFile('data.json', {
'bufferSize': 4 * 1024,
'encoding' : 'utf8'
}, function(err, data){
if(err){
console.log(err);
}
var lines = data.trim().split('\n');
/*lines.replace("MMA8452Q is online... ","");*/
var lastLine = lines.slice(-1)[0];
console.log(lastLine);
socket.emit('retrievedFileContent', lastLine );
})
});
});
exports = module.exports = app;
/*
Tail = require('tail').Tail;
tail = new Tail("fileToTail");
tail.on("line", function(data) {
console.log(data);
});*/