uk.co.threeonefour.ifictionary.web.security.service.UserDetailsServiceImpl.java Source code

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/**
 * Copyright 2014 Paul Illingworth
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *     http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package uk.co.threeonefour.ifictionary.web.security.service;

import java.util.ArrayList;
import java.util.Collection;

import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.security.core.userdetails.User;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;

import uk.co.threeonefour.ifictionary.web.user.dao.UserDao;
import uk.co.threeonefour.ifictionary.web.user.model.Role;

public class UserDetailsServiceImpl implements UserDetailsService {
    private final UserDao userDao;

    public UserDetailsServiceImpl(UserDao userDao) {
        this.userDao = userDao;
    }

    @Override
    public UserDetails loadUserByUsername(String userId) throws UsernameNotFoundException {
        uk.co.threeonefour.ifictionary.web.user.model.User userEntity;
        userEntity = userDao.findUser(userId);
        if (userEntity == null) {
            throw new UsernameNotFoundException("user name not found");
        }

        return buildUserFromUserEntity(userEntity);

    }

    private User buildUserFromUserEntity(uk.co.threeonefour.ifictionary.web.user.model.User userEntity) {
        // convert model user to spring security user
        String username = userEntity.getUserId();
        String password = userEntity.getPassword();
        boolean enabled = true;
        boolean accountNonExpired = true;
        boolean credentialsNonExpired = true;
        boolean accountNonLocked = true;
        Collection<GrantedAuthority> authorities = new ArrayList<GrantedAuthority>();
        Collection<Role> roles = userEntity.getRoles();
        for (Role role : roles) {
            authorities.add(new SimpleGrantedAuthority(role.name()));
        }

        User springUser = new User(username, password, enabled, accountNonExpired, credentialsNonExpired,
                accountNonLocked, authorities);
        return springUser;
    }
}