com.todo.backend.security.UserDetailsServiceImpl.java Source code

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Here is the source code for com.todo.backend.security.UserDetailsServiceImpl.java

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/**
* Copyright 2016 dryTools doo
* Email: contact@drytools.co
* 
* This file is part of todo.
* 
* todo is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* 
* todo is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU General Public License for more details.
* 
* You should have received a copy of the GNU General Public License
* along with todo. If not, see <http://www.gnu.org/licenses/>.*
**/
package com.todo.backend.security;

import java.util.Collections;
import java.util.List;
import java.util.Optional;

import javax.inject.Inject;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.stereotype.Component;

import com.todo.backend.model.User;
import com.todo.backend.repository.UserRepository;

@Component
public class UserDetailsServiceImpl implements UserDetailsService {

    private final Logger log = LoggerFactory.getLogger(UserDetailsServiceImpl.class);

    @Inject
    private UserRepository userRepository;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {

        log.trace(".loadUserByUsername({})", username);

        final String lowercaseUsername = username.toLowerCase();
        final Optional<User> optionalUser = userRepository.findByUsername(lowercaseUsername);

        if (!optionalUser.isPresent()) {
            throw new UsernameNotFoundException("User " + username + " not found!");
        }

        final User user = optionalUser.get();
        final List<GrantedAuthority> grantedAuthorities = Collections
                .singletonList(new SimpleGrantedAuthority(user.getRole().name()));
        return new org.springframework.security.core.userdetails.User(lowercaseUsername, null, grantedAuthorities);
    }

}