How to add a custom AuthenticationFilter to the FilterChainManager

[Paul Merlin]

Hi folks,

I'm exploring shiro code to see how to add a custom AuthenticationFilter but it 
seems that thoses that are available in configuration (authcBasic etc...) are 
defined in the enum DefaultFilterChainManager.DefaultFilterChainManager.

How could I add another one writen by me ?
        1. Programmaticaly ?
        2. By configuration ?

Thanks in advance

/Paul