Design for scalability with hmvc

1. Design for Scalability with HMVC Sam de Freyssinet joind.in/talk/view/1557

2. whoami Technical Team Lead, Ibuildings UK sam@ibuildings.com github.com/samsoir ••• @samsoir

3. also... Kohana framework core developer since 2008 http://kohanaframework.org

4. What is Hierarchical-MVC?

5. Controller View Model

6. Personalisation Controller Auth Context View Model

7. “Thomas & Friends”, “The Fat Controller” © 2010 Gullane (Thomas) Limited. The Thomas name and character and the Thomas & Friends logo are trademarks of Gullane (Thomas) Limited and its affiliates and are registered in many jurisdictions throughout the world.

8. C V M C C V M V M C V M C C V M V M

9. C Dashboard V M Posts C C V M Pages V M ACL C V M C C Media Users V M V M

11. A long time ago in a galaxy far, far away....

12. http://www.javaworld.com/javaworld/jw-07-2000/jw-0721- hmvc.html

13. C scope fa lls short ...] the trad itional MV “[ the contr ol of GUI en it comes to ot handle wh widgets). M VC does n elements ( of data ma nagement, com plexities ion ﬂows the gement, a nd applicat e vent mana [...]” “HM VC provides a powe rful yet easy-to- understand layered design methodology for developing a com plete presentation layer. While MVC pro vides an efficient framework for devel oping GUI interaction, HMVC s cales it to the entire client tier.”

14. http://en.wikipedia.org/wiki/Presentation-abstraction- control

15. HMVC ≊ PAC

16. http://techportal.ibuildings.com/2010/02/22/scaling-web-applications- with-hmvc/

17. “SOA separates functions into distinct units, or services, whic h developers make accessible over a network in order to allo w users to combine and reuse them in the production of applications.” http://en.wikipedia.org/wiki/Service- oriented_architecture

18. Request C Request V M Request C C Request Request V M V M C Request Request V M C C V M V M

19. Request C Request Request V M Request Request C C Request Request V M V M Request C Request Request Request Request V M C C V M V M

20. HMVC ≊ PAC

21. SOA ≊ HMVC ≊ PAC

23. Available capacity Users 100% 500,000 80% 400,000 60% 300,000 40% 200,000 20% 100,000 0% 0 2010 2011 2012 2013 2014

24. epicFAIL

25. epicFAIL

26. Service-Orientated- Architecture Scaling SOA with HMVC in Kohana

28. Properties & methods id create username read (view/load) password update full name delete nickname find email find_all [...] [...]

29. // Load an instance of sian user $user = User::instance() ->load('sian');

30. // Load an instance of sian user using HMVC $user = Request::factory('user/load/sian.json') ->execute();

31. { id: 12345, username: 'sian', fullname: 'Siân de Freyssinet', shortname: 'pinkyde', ..., ... }

32. // Load an instance of sian user $user = User::instance() ->load('sian'); // Load an instance of sian user using HMVC $user = Request::factory('user/load/sian.json') ->execute();

33. // Load an instance of sian user $user = User::instance() FTW ->load('sian'); // Load an instance of sian user using HMVC $user = Request::factory('user/load/sian.json') ->execute();

34. HTTP server Handle client request PHP initialisation PHP runs, index.php executed Framework loads all required Bootstrap dependencies The server request is parsed Request Framework execution producing a request object The request is examined and Routing matched to a registered route The matched controller action is invoked. The business logic of the request Application logic takes place here, including loading of models and views, gathering data and rendering the result.

40. // If there is no cached user if ( ! $user = Cache::instance() ->load('sian12345')) { // Load an instance of sian // user using HMVC $user = Request::factory('user/sian') ->execute(); }

41. // If there is no cached user if ( ! $user = Cache::instance() ->load('sian12345')) { // Load an instance of sian user $user = User::instance() ->load('sian'); } // If there is no cached user if ( ! $user = Cache::instance() ->load('sian12345')) { // Load an instance of sian user using HMVC $user = Request::factory('user/sian') ->execute(); }

43. GET / HTTP/1.1 Status Exception Method Action Headers Metadata Content Properties

45. Route::set('users', 'user/<action>/<username>(<format>)', array('username' => 'w+', 'format' => '.w+')) ->defaults(array( 'controller' => 'user', 'action' => 'load', 'format' => '.json', ));

46. Reverse Routing Generating internal and external URIs based on Route definitions

48. // Create a URI for the user route $uri = Route::get('users') ->uri(array('username' => 'sian')); // Load the URI with a request Request::factory($uri) ->execute();

49. // Create a URI for the user route $uri = Route::get('users') ->uri(array('username' => 'sian')); $uri => /user/load/ sian.json // Load the URI with a request Request::factory($uri) ->execute();

50. epicFAIL

52. Route::set('users', 'user/<action>/<username>(<format>)', array('username' => 'w+', 'format' => '.w+')) ->defaults(array( 'controller' => 'user', 'action' => 'load', 'format' => '.json', 'host' => 'users.myhost.tld', ));

53. Route::set('users', 'user/<action>/<username>(<format>)', array('username' => 'w+', 'format' => '.w+')) ->defaults(array( 'controller' => 'user', 'action' => 'load', 'format' => '.json', 'host' => 'users.myhost.tld', ));

54. Security

55. Security An additional consideration...

56. Security An additional consideration... Obfuscation (really?) IP restriction API Keys HTTP Basic Auth SSL Certificates

57. OAuth Designed for HTTP

58. OAuth Designed for HTTP

59. Presentation Scaling presentation with HMVC

60. - + mysite.com + Home Archive Blog Web board About us Buy content My Website login username Foobar 12 password ******* Register | Forget password - “RDX Wall Art: The Making Of” iand new short documentary iand new short isa new short - isa new short documentary - highlighting iand new sho documentary - some of the pioneers highlighting iand new sho more ... Foobar 12 - “RDX Wall Art: The Making Of” iand new short documentary iand new short isa new short - isa new short documentary - highlighting iand new sho documentary - some of the pioneers highlighting iand new sho more ...

61. GET /auth/login HTTP/1.1

62. - + mysite.com + Home Archive Blog Web board About us Login username siân password ******* Register | Forget password OK

63. <!DOCTYPE HTML> <html> <head> <meta charset="utf-8"> <title>Login page</title> </head> <body> <form action="/auth/login" method="post" accept-charset="utf-8"> <p> <label for "username">Username :</label> <br /> <input type="test" name="username" value="" id="username"> </p> <p> <label for "password">Password :</label> <br /> <input type="test" name="password" value="" id="password"> </p> <p> <input type="submit" value="Login →"> </p> </form> </body> </html>

66. <form action="/auth/login" method="post" accept-charset="utf-8"> <p> <label for "username">Username :</label> <br /> <input type="test" name="username" value="" id="username"> </p> <p> <label for "password">Password :</label> <br /> <input type="test" name="password" value="" id="password"> </p> <p> <input type="submit" value="Login →"> </p> </form>

67. $login_form = Request::factory('/auth/login') ->header('X-Login-Style', 'reduced') ->execute();

68. GET /auth/login HTTP/1.1 X-Login-Style: reduced

69. // Test the request for reduced style if ($this->request->header('X-Login-Style') === 'reduced') { // Return the reduced login form $this->response->body = View::factory('login/reduced.phtml'); } else { // Return the full login form $this->response->body = View::factory('login/reduced.phtml'); }

70. Kohana 3 Website ~ http://kohanaframework.org Source ~ http://github.com/kohana Kohana 3.1 development ~ http://github.com/samsoir/core/tree/3.1

71. Photo credits http://www.flickr.com/photos/kimpierro/182720032/ http://www.flickr.com/photos/filmingilman/5882785/ http://www.flickr.com/photos/ntr23/730371240 http://www.flickr.com/photos/tanaka/3212373419 http://www.flickr.com/photos/m0php/2426528590 http://www.flickr.com/photos/muehlinghaus/241755891

72. Thank you... joind.in/talk/view/1557 http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

Design for scalability with hmvc

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