com.yilv.service.impl.UserServiceImpl.java Source code

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Here is the source code for com.yilv.service.impl.UserServiceImpl.java

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/*
 * Copyright (C) 2010 Moduad Co., Ltd.
 * 
 * This program 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 2 of the License, or
 * (at your option) any later version.
 * 
 * This program 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 this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
package com.yilv.service.impl;

import java.util.List;

import javax.persistence.EntityExistsException;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.dao.DataIntegrityViolationException;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import com.yilv.dao.UserDao;
import com.yilv.entity.User;
import com.yilv.exception.UserExistsException;
import com.yilv.exception.UserNotFoundException;
import com.yilv.service.UserService;

/**
 * This class is the implementation of UserService.
 * 
 * @author Sehwan Noh (devnoh@gmail.com)
 */

@Service
@Transactional(readOnly = true)
public class UserServiceImpl implements UserService {

    protected final Log log = LogFactory.getLog(getClass());

    @Autowired
    private UserDao userDao;

    public User getUser(String userId) {
        return userDao.getUser(new Long(userId));
    }

    public List<User> getUsers() {
        return userDao.getUsers();
    }

    @Transactional(readOnly = false)
    public User saveUser(User user) throws UserExistsException {
        try {
            return userDao.saveUser(user);
        } catch (DataIntegrityViolationException e) {
            e.printStackTrace();
            log.warn(e.getMessage());
            throw new UserExistsException("User '" + user.getUsername() + "' already exists!");
        } catch (EntityExistsException e) { // needed for JPA
            e.printStackTrace();
            log.warn(e.getMessage());
            throw new UserExistsException("User '" + user.getUsername() + "' already exists!");
        }
    }

    public User getUserByUsername(String username) throws UserNotFoundException {
        return (User) userDao.getUserByUsername(username);
    }

    @Transactional(readOnly = false)
    public void removeUser(Long userId) {
        log.debug("removing user: " + userId);
        userDao.removeUser(userId);
    }

}