[Spring Security] An Simple example configuration

package com.example.ec.security;

import com.example.ec.repo.RoleRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.config.http.SessionCreationPolicy;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;

@Configuration
@EnableGlobalMethodSecurity(prePostEnabled = true)
public class WebSecurityConfiguration extends WebSecurityConfigurerAdapter {

    @Autowired
    RoleRepository roleRepository;

    @Override
    protected void configure(HttpSecurity http) throws Exception {

        // Entry points
        http.authorizeRequests()
                .antMatchers("/packages/**").permitAll()
                .antMatchers("/tours/**").permitAll()
                .antMatchers("/ratings/**").permitAll()
                .antMatchers("/users/signin").permitAll()
                // Disallow everything else..
                .anyRequest().authenticated();

        // Disable CSRF (cross site request forgery)
        http.csrf().disable();

        // No session will be created or used by spring security
        http.sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS);

    }

    @Bean
    @Override
    public AuthenticationManager authenticationManagerBean() throws Exception {
        return super.authenticationManagerBean();
    }

    @Bean
    public PasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder(12);
    }

}

@Component
public class ExploreCaliUserDetailsService implements UserDetailsService {
    @Autowired
    private UserRepository userRepository;

    @Override
    public UserDetails loadUserByUsername(String s) throws UsernameNotFoundException {
        User user = userRepository.findByUsername(s).orElseThrow(() ->
                new UsernameNotFoundException(String.format("User with name %s does not exist", s)));

        //org.springframework.security.core.userdetails.User.withUsername() builder
        return withUsername(user.getUsername())
                .password(user.getPassword())
                .authorities(user.getRoles())
                .accountExpired(false)
                .accountLocked(false)
                .credentialsExpired(false)
                .disabled(false)
                .build();
    }
}