Felix Halim .NET  

Valladolid OJ - Code Overhaul

Posted on [2015-11-22 23:33:19], Category []
Due to :
  • Changes of script in Valladolid Site ( http://acm.uva.es/p ) like the dissapearance of author names and replaced by author's ID
  • UVA unwillingness of giving XML data or webservices-like feature (for easy data extraction for author names and their statistics ). Their hesitance is because in order to generate a complete statistics for an author along with each of his/her status of every problem submissions would need a very huge processing power (it's not if they have a good data-warehousing systems).
  • The release of PHP 5 that supports a lot of new features such as DomDocument and DomXPath. This gives me a way to extract any data from thw UVA site easily as if it's an XML file.
  • The need to refactor my own PHP codes (now using classes and Design Patterns).

I decided to do an overhaul for my site. Basically, I will build a data-warehouse for UVA site. I will do an ETL (Extract Transform and Load) from UVA Site to my site once a month (for refreshing/updating the data). The benefits of having this data-wareouse is that we can generate any statistics faster and can be made more subjective.

In the mean time, the services I provide earlier such as : Statistics Comparer and 20 next easiest problems will not be accessible. Sorry for that :( I hope I can get it up and running soon.

Comments: 5  |  Add Comment

Posted by
Oh yeah, I forgot to tell that I will use AJAX extensively for convenient browsing and suppress the server bandwidth as many as possible

Posted by
try using IE... hmm fine

Posted by
Hai hai hai, testing2

Posted by
add comment!

Posted by
ajaxnya kok aneh?

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