iamtrk

public class ConnectionPool {
    
    private ComboPooledDataSource cpds;
    private static ConnectionPool datasource;
    

    private ConnectionPool() throws IOException, SQLException ,PropertyVetoException{
          
        cpds = new ComboPooledDataSource();
        cpds.setJdbcUrl("jdbc:mysql://localhost:3306/data_base");

iamtrk

In August 2007 a hacker found a way to expose the PHP source code on facebook.com. He retrieved two files and then emailed them to me, and I wrote about the issue:

http://techcrunch.com/2007/08/11/facebook-source-code-leaked/

It became a big deal:

http://www.techmeme.com/070812/p1#a070812p1

The two files are index.php (the homepage) and search.php (the search page)

iamtrk

import java.io.BufferedReader;
import java.io.FileReader;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Hashtable;

iamtrk

var fs = require("fs");
 function getPrimes(max) {
    
    var sieve = [], i, j, primes = [];
    for (i = 2; i <= max; ++i) {
        if (!sieve[i]) {
            // i has not been marked -- it is prime
            primes.push(parseInt(i));
            for (j = i << 1; j <= max; j += i) {
                sieve[j] = true;

iamtrk

var express = require('express')
  , http    = require('http')
  , foodlist = require('./foodlist');
var app = express();

    app.configure(function(){
  app.set('port', process.env.PORT || 3000);
	app.use(express.bodyParser());
	});

iamtrk

db.isMaster().maxBsonObjectSize()  -- > upper limit on the size of a document 

iamtrk

Final: Question 2
            Please use the Enron dataset you imported for the previous problem. For this question you will use the aggregation framework to figure out pairs of people that tend to communicate a lot(list Top5 pairs).
Query :
db.messages.aggregate([{$unwind:"$headers.To"},{$group:{_id:{from:"$headers.From",to:"$headers.To"},numbe:{$sum:1}}},{$sort:{numbe:-1}},{$limit:5}])

iamtrk

 //fs module is required for writing conversations and host info logging.
 var net = require('net');
 var fs  = require('fs');

 var sockets = [];
 var people  = {};
 // Hosts are saved in hosts file and conversation is saved in conversation file.
 var hosts = 'hosts.txt';
 var conv  = 'conversation.txt';
 var server = net.createServer(function(socket){