CODEWITHSUNDEEP
javascriptphpservletsframeworks
Tiger
Tiger

Reputation: 424

Facebook Bigpipe , doing it right or not?

Actually i m creating a framework in php that is similer to Java Servlet Model but use Facebook Big pipe similer technology.

To clear take a look at this Servlet ( PHP Servlet ) 

    <?php

      class login_servlet extends Servlet{

          public function doGet($request, $response){ 

              $response->getWriter()->write('hii');   

          }   // __ end of doGet

          public function doPost($request, $response){ }  // end of doPost

      } // __ Servlet


  ?>

so when user enters http://myweb.com/login

this servlet will be called, mapping will be done by framework, and framework do something like this :-

$servlet_name  = genrate_servlet_name('login');

$servlet_boj = new $servlet_name(new Request(), new Response());
$servlet_obj-> init(new ServletConfig());
$servlet_obj-> service();
$servlet_obj-> destroy();

so we can say that a single servlet is similer to a controller in MVC, and according to doGet or doPost method will be called by framework as i explalined above with request and response parameters, but views are devided in multiple pagelets, ex :-

as you can see in picture this page contains 4 pagelets :-

1 header 2 center left part 3 center right part ( login part ) 4 footer

so so login_servlet code look like this :-

<?php

  class login_servlet extends Servlet{

      public function doGet($request, $response){

         $writer = $response->getWriter();

         $pg_strucutre  = new PageletIndexStructure($request, $response);
         $writer->writePagelet($pg_strucutre);

         $pg = new PageletIndexHead($request, $response);
         $writer->writePagelet($pg);

         $pg = new PageletIndexLeft($request, $response);
         $writer->writePagelet($pg);

         $pg = new PageletIndexRight($request, $response);
         $writer->writePagelet($pg);

         $pg = new PageletIndexFooter($request, $response);
         $writer->writePagelet($pg);

      }   // __ end of doGet

      public function doPost($request, $response){  }  // end of doPost

  } // __ Servlet

?>

and pagelet class look this this that every pagelet must extend :-

<?php

   class Pagelet{

      public $template_name = '';
      public $js = array();
      public $css = array();
      public $output = null;  
      public $container_id = 'root'; // __default is root

      private $request = null;
      private $response = null;

      function __construct($request, $response){

          $this->request = $request;
          $this->response = $response;
          $this->doProcess();

          /* default  */   
      }  //  __ construct 

     public function doProcess(){

         // __ here all code will comes

     } // __doprocess

      public function render(){

         $arr = array(

            'js' => $this->js,
            'css' => $this->css,
            'content' => $this->output,
            'container_id' => $this->container_id,              
            'response_type' => 2
         );            
         return json_encode($arr);

     } // __ end of render 

   } // __ end of class


?>

and on client side response look like this :- 

<!Doctype html>
<html> 

  <head> 
     <script type="text/javascript" src="js/jquery.min.js"> </script> <script type="text/javascript" src="js/require.js" data-main="js/load.js"></script>  <script type="text/javascript" src="js/boot.js"> </script> <link rel="stylesheet"  href="css/nnj.css" /> 
 </head> 

 <body>  

     <div id="__global"> </div> <div style="position : fixed; width : 100%; height : 50px; background-color : black; bottom : 0px; left : 0px;"></div>      
     <iframe id ="__navigate" style=""> </iframe>  

     <script type="text/javascript">  boot.on_arrived({"response_type" : 1});  </script>
     <script type='text/javascript'>  boot.on_arrived({"js":["index_structure"],"css":["index_structure"],"content":"<div id=\"cntr\">     <div id=\"cntr_head\"> </div>      <div>        <div id=\"cntr_left\"> </div>                <div id=\"cntr_right\"> </div>   </div>   <div id=\"cntr_footer\"> </div></div>","container_id":"root","response_type":2}); </script> 
     <!-- <code><div id="cntr">   <div id="cntr_head"> </div>    <div>    <div id="cntr_left"> </div>        <div id="cntr_right"> </div>  </div>  <div id="cntr_footer"> </div></div></code> --> 

     <script type='text/javascript'>  boot.on_arrived({"js":[""],"css":[""],"content":"<b> This is the login page  : Enter your informations </b>","container_id":"cntr_head","response_type":2}); </script> 
     <!-- <code><b> This is the login page : Enter your informations </b></code> --> 

     <script type='text/javascript'>  boot.on_arrived({"js":[""],"css":[""],"content":"<h2>    login and join others</h2>","container_id":"cntr_left","response_type":2}); </script> 
     <!-- <code><h2>  login and join others</h2></code> --> 

     <script type='text/javascript'>  boot.on_arrived({"js":[""],"css":[""],"content":"<form action=\"/login\" method=\"post\">    Email : <input type=\"text\" name=\"email\">    <br>    Pasword : <input type=\"password\" name=\"password\">    <br>    <input type=\"submit\"></from><br><br><a href=\"/register\"> don't have account ? </a>","container_id":"cntr_right","response_type":2}); </script>
     <!-- <code><form action="/login" method="post">  Email : <input type="text" name="email">  <br>  Pasword : <input type="password" name="password">  <br>  <input type="submit"></from><br><br><a href="/register"> don't have account ? </a></code> --> 

     <script type='text/javascript'>  boot.on_arrived({"js":[""],"css":[""],"content":"<div style=\"width : 150px; text-align : left; display : inline-block;\"> About  </div><div style=\"width : 150px; text-align : left; display : inline-block;\"> help  </div><div style=\"width : 150px; text-align : left; display : inline-block;\"> Privacy  </div><div style=\"width : 150px; text-align : left; display : inline-block;\"> Terms and Conditions  </div><div style=\"width : 150px; text-align : left; display : inline-block;\"> Advertise  </div>","container_id":"cntr_footer","response_type":2}); </script> 
     <!-- <code><div style="width : 150px; text-align : left; display : inline-block;"> About </div><div style="width : 150px; text-align : left; display : inline-block;"> help </div><div style="width : 150px; text-align : left; display : inline-block;"> Privacy </div><div style="width : 150px; text-align : left; display : inline-block;"> Terms and Conditions </div><div style="width : 150px; text-align : left; display : inline-block;"> Advertise </div></code> --> <script type="text/javascript">  boot.on_arrived({"response_type" : 3});  </script> 


   </body> 
</html>

so my question is m i doing right or i need to change something ,, ? sorry for weak english :( , thanks in advance

Upvotes: 0

Views: 772

Answers (1)

Roemer
Roemer

Reputation: 3576

It is very hard to answer a question like "am I doing it right?". Is there anything you want specific feedback on? Try to ask a very directed question.

The blogpost about Bigpipe: https://www.facebook.com/notes/facebook-engineering/bigpipe-pipelining-web-pages-for-high-performance/389414033919

Since it is not opensourced, I don't think you will find a lot of information about the internals. There is an open implementation here: http://www.juhonkoti.net/2010/10/01/open-bigpipe-javascript-implementation. Maybe that can help you further.

See also Facebook Bigpipe Technique Algorithm.

Upvotes: 1

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