Decorator Pattern in C#

I'm reading C# 3.0 Design Patterns by Judith Bisop
I've understood the decorator pattern.
Here is my little example for extending StreamReder class by password, when it reads.

using System;
using System.IO;

namespace Decorator
{
 public class LoginStream
 {
  private StreamReader  _streamReader;
  private string _password;

  public LoginStream (StreamReader streamReader, string password){
   _streamReader = streamReader;
   _password = password;
  }

  public string Read (string password){
   if (_password == password) {
    return _streamReader.ReadToEnd ();
   }
   throw new Exception ("Ivalid Password");
  }

 }
}

And the tests:

using System;
using System.IO;
using Decorator;
using NUnit.Framework;

namespace DecoratorTests
{
 [TestFixture()]
 public class Test
 {
  [Test()]
  public void LoginStream_Read_return_string_when_has_a_valid_password ()
  {
   var stream = new StreamReader("/home/luis/tmp/Prueba/Prueba.sln");
   var password = "password";
   var loginStream = new LoginStream(stream, password);

   var result = loginStream.Read(password);

   Assert.IsNotEmpty (result);
  }

  [Test()]
  [ExpectedException(typeof(Exception))]
  public void LoginStraeam_Read_return_exception_when_has_an_invalid_password ()
  {
   var stream = new StreamReader("path");
   var password = "password";
   var loginStream = new LoginStream(stream, password);

   loginStream.Read("invalidPassword");

   Assert.Fail ("Exception expected");
  }
 }
}

Export html Table to csv

Some time ago a collegue in Adesis, he needed to export html table to csv file.
I´ve dicovered some new music
So this the solution. It works

    



    
    
    
 
     
    
 





Titulo tabla



Nombre


Provincia


Telefono/Fax


URL
                     
Marcas
                   
                 
                 
                                                                                             
                     
    
Aistribuidor Nombre
                     
    
Tadrid
                     
    
200 000 000
                     
    
                       www.paginaweb.com                     
                     
    
marcas
                   

                     
    
Bistribuidor Nombre
                     
    
Sadrid
                     
    
500 000 000
                     
    
                       www.paginaweb.com                     
                     
    
marcas
                   

                     
    
Cistribuidor Nombre
                     
    
Sadrid
                     
    
300 000 000
                     
    
                       www.paginaweb.com                     
                     
    
marcas
                   

                     
    
Distribuidor Nombre
                     
    
Madrid
                     
    
900 000 000
                     
    
                       www.paginaweb.com                     
                     
    
marcas
                   

My new Console

Some time ago, I´ve discovered cmder The new concept of console.

Starting with Git in Spanish

git guide

Enable CORS in ASP.NET WebAPI

In Global.asax.cs file

public class WebApiApplication : System.Web.HttpApplication
{
    protected void Application_BeginRequest(object sender, EventArgs e)
    {
        HttpContext.Current.Response.AddHeader("Access-Control-Allow-Origin", "*");
        HttpContext.Current.Response.AppendHeader("Cache-Control", "no-cache, no-store, must-revalidate"); // HTTP 1.1.
        HttpContext.Current.Response.AppendHeader("Pragma", "no-cache"); // HTTP 1.0.
        HttpContext.Current.Response.AppendHeader("Expires", "0"); // Proxies.

        HttpContext.Current.Response.AppendHeader("Cache-Control", "no-cache, no-store, must-revalidate"); // HTTP 1.1.
        HttpContext.Current.Response.AppendHeader("Pragma", "no-cache"); // HTTP 1.0.
        HttpContext.Current.Response.AppendHeader("Expires", "0"); // Proxies.

        if (HttpContext.Current.Request.HttpMethod == "OPTIONS")
        {
            HttpContext.Current.Response.AddHeader("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE");
            HttpContext.Current.Response.AddHeader("Access-Control-Allow-Headers", "Content-Type, Content-Range, Content-Disposition, Content-Description");
            HttpContext.Current.Response.End();
        }
    }
}

Become a great developer

Some nice posts about craftsmanship:
 How To Be A Great Developer
 Craftsmanship

Start with nodejs server

var http = require('http');
var mime = require('mime');
var url = require('url');
var fs = require('fs');
var _base = './';

http.createServer(function(req, res){
 pathname = _base + req.url;
 console.log('path name: ' + pathname);
 fs.stat(pathname, function(err, stats){
  if(err){
   res.writeHead(404);
   res.write('Bad request 404 \n');
   res.end();
  }else if(stats.isFile()){
   var type = mime.lookup(pathname);
   console.log('mime-type: ' + type);
   res.setHeader('Content-Type', type);
   res.statusCode = 200;
   var file = fs.createReadStream(pathname);
   file.on('open', function(data){
    file.pipe(res);
   });
   file.on('error', function(err){
    console.log('error open the file: ' + err);
   })
  }else{
   res.writeHead(403);
   res.write('Directory access is forbidden');
   res.end();
  }
 });
}).listen(1024);
console.log('server running on 1024');