java - Spring boot security add parameter to login -

i've problem, use spring boot , there i've implemented security. in securityconfig class (below method source code) i've provided username , password parameters checked during login process. need check if account activated, in db i've column 'activated' boolean value. , how provide own parameter account activated login process ?

@override protected void configure(httpsecurity http) throws exception {     http.authorizerequests()             .antmatchers("/").permitall()             .antmatchers("/investors/**").hasanyrole("admin")             .antmatchers("/search**").authenticated()             .anyrequest().fullyauthenticated()             .and()             .formlogin()             .loginpage("/login")             .usernameparameter("username")  < -              .passwordparameter("password")  < -             .permitall()             .and()             .logout() 

thanks help