/*

  * Licensed to the Apache Software Foundation (ASF) under one

  * or more contributor license agreements.  See the NOTICE file

  * distributed with this work for additional information

  * regarding copyright ownership.  The ASF licenses this file

  * to you 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 org.apache.shiro.samples.sprhib.service;

 import org.apache.shiro.SecurityUtils;

 import org.apache.shiro.crypto.hash.Sha256Hash;

 import org.apache.shiro.samples.sprhib.dao.UserDAO;

 import org.apache.shiro.samples.sprhib.model.User;

 import org.springframework.beans.factory.annotation.Autowired;

 import org.springframework.stereotype.Service;

 import org.springframework.transaction.annotation.Transactional;

 import java.util.List;

 /**

  * Default implementation of the {@link UserService} interface.  This service implements

  * operations related to User data.

  */

 @Transactional

 @Service("userService")

 public class DefaultUserService implements UserService {

     private UserDAO userDAO;

     @Autowired

     public void setUserDAO(UserDAO userDAO) {

         this.userDAO = userDAO;

     }

     public User getCurrentUser() {

         final Long currentUserId = (Long) SecurityUtils.getSubject().getPrincipal();

         if( currentUserId != null ) {

             return getUser(currentUserId);

         } else {

             return null;

         }

     }

     public void createUser(String username, String email, String password) {

         User user = new User();

         user.setUsername(username);

         user.setEmail(email);

         user.setPassword( new Sha256Hash(password).toHex() );

         userDAO.createUser( user );

     }

     public List<User> getAllUsers() {

         return userDAO.getAllUsers();

     }

     public User getUser(Long userId) {

         return userDAO.getUser(userId);

     }

     public void deleteUser(Long userId) {

         userDAO.deleteUser( userId );

     }

     public void updateUser(User user) {

         userDAO.updateUser( user );

     }

 }