Stormpath integration with existing spring boot app

Question

I have a spring boot app which has spring boot security enabled on it. The table I have used UserAccount and Role. Now I want to integrate stormpath for access control. How can I migrate my existing system with stormpath? My security configuration is given below.

@Configuration
@EnableWebSecurity
public class WebSecurityConfig extends WebSecurityConfigurerAdapter{
    @Autowired
    private CustomUserDetailsService customUserDetailsService;
     @Override
        protected void configure(HttpSecurity http) throws Exception {
         http.csrf().disable();

         http
         .authorizeRequests()
             .antMatchers("/*", "/static/**", "/css/**", "/js/**", "/images/**").permitAll()
             .antMatchers("/school-admin/*").hasAuthority("SCHOOL_ADMIN").anyRequest().fullyAuthenticated()
             .antMatchers("/teacher/*").hasAuthority("TEACHER").anyRequest().fullyAuthenticated()
             .anyRequest().authenticated().and()

         .formLogin()
             .loginPage("/login.html").defaultSuccessUrl("/loginSuccess.html")
            .failureUrl("/login.html?error").permitAll().and()

         .logout()
            .logoutRequestMatcher(new AntPathRequestMatcher("/logout.html")).logoutSuccessUrl("/login.html?logout");

     }

     @Autowired
        public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
         auth.userDetailsService(customUserDetailsService).passwordEncoder(new BCryptPasswordEncoder());
        }
}