org.openmrs.contrib.metadatarepository.dao.hibernate.UserDaoHibernate.java Source code

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Here is the source code for org.openmrs.contrib.metadatarepository.dao.hibernate.UserDaoHibernate.java

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/**
 * The contents of this file are subject to the OpenMRS Public License
 * Version 1.0 (the "License"); you may not use this file except in
 * compliance with the License. You may obtain a copy of the License at
 * http://license.openmrs.org
 *
 * Software distributed under the License is distributed on an "AS IS"
 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
 * License for the specific language governing rights and limitations
 * under the License.
 *
 * Copyright (C) OpenMRS, LLC.  All Rights Reserved.
 */

package org.openmrs.contrib.metadatarepository.dao.hibernate;

import org.openmrs.contrib.metadatarepository.dao.UserDao;
import org.openmrs.contrib.metadatarepository.model.User;
import org.springframework.core.annotation.AnnotationUtils;
import org.springframework.jdbc.core.simple.SimpleJdbcTemplate;
import org.springframework.orm.hibernate3.SessionFactoryUtils;
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.Repository;

import javax.persistence.Table;
import java.util.List;

/**
 * This class interacts with Spring's HibernateTemplate to save/delete and
 * retrieve User objects.
 *
 * @author <a href="mailto:matt@raibledesigns.com">Matt Raible</a>
 *   Modified by <a href="mailto:dan@getrolling.com">Dan Kibler</a>
 *   Extended to implement Acegi UserDetailsService interface by David Carter david@carter.net
 *   Modified by <a href="mailto:bwnoll@gmail.com">Bryan Noll</a> to work with 
 *   the new BaseDaoHibernate implementation that uses generics.
*/
@Repository("userDao")
public class UserDaoHibernate extends GenericDaoHibernate<User, Long> implements UserDao, UserDetailsService {

    /**
     * Constructor that sets the entity to User.class.
     */
    public UserDaoHibernate() {
        super(User.class);
    }

    /**
     * {@inheritDoc}
     */
    @SuppressWarnings("unchecked")
    public List<User> getUsers() {
        return getHibernateTemplate().find("from User u order by upper(u.username)");
    }

    /**
     * {@inheritDoc}
     */
    public User saveUser(User user) {
        if (log.isDebugEnabled()) {
            log.debug("user's id: " + user.getId());
        }
        getHibernateTemplate().saveOrUpdate(user);
        // necessary to throw a DataIntegrityViolation and catch it in UserManager
        getHibernateTemplate().flush();
        return user;
    }

    /**
     * Overridden simply to call the saveUser method. This is happenening 
     * because saveUser flushes the session and saveObject of BaseDaoHibernate 
     * does not.
     *
     * @param user the user to save
     * @return the modified user (with a primary key set if they're new)
     */
    @Override
    public User save(User user) {
        return this.saveUser(user);
    }

    /** 
     * {@inheritDoc}
    */
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        List users = getHibernateTemplate().find("from User where username=?", username);
        if (users == null || users.isEmpty()) {
            throw new UsernameNotFoundException("user '" + username + "' not found...");
        } else {
            return (UserDetails) users.get(0);
        }
    }

    /** 
     * {@inheritDoc}
    */
    public String getUserPassword(String username) {
        SimpleJdbcTemplate jdbcTemplate = new SimpleJdbcTemplate(
                SessionFactoryUtils.getDataSource(getSessionFactory()));
        Table table = AnnotationUtils.findAnnotation(User.class, Table.class);
        return jdbcTemplate.queryForObject("select password from " + table.name() + " where username=?",
                String.class, username);

    }

}