Help Buffer Java Code Adaptation For Acis

Hi fellas, so at first i found this buffer code several years ago in one Russian pack, it suited perfectly for me because buff time was not retail only from buffer. And i would like to adapt this code for aCis platform but before i need to know or it's possible? Yes, yes i now everything is possible but i found this code in DP side i can put it into core? and or it's possible for such a newbie in java language like me? If yes maybe someone can tell me from where i must begin? (zero skill's but high motivation)  

Code here:
http://pastebin.com/makPbuUa

Thnx for your's time.