org.businessmanager.dao.security.UserDaoImpl.java Source code

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Here is the source code for org.businessmanager.dao.security.UserDaoImpl.java

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/*******************************************************************************
 * Copyright 2012 Christian Ternes and Thorsten Volland
 * 
 * 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 org.businessmanager.dao.security;

import java.util.List;

import javax.persistence.NoResultException;
import javax.persistence.criteria.CriteriaBuilder;
import javax.persistence.criteria.CriteriaQuery;
import javax.persistence.criteria.Root;

import org.businessmanager.dao.GenericDaoImpl;
import org.businessmanager.domain.ModificationType;
import org.businessmanager.domain.security.QUser;
import org.businessmanager.domain.security.User;
import org.businessmanager.domain.security.User_;
import org.springframework.stereotype.Repository;

import com.mysema.query.jpa.impl.JPAQuery;

/**
 *
 */
@Repository
public class UserDaoImpl extends GenericDaoImpl<User> implements UserDao {

    @Override
    public List<User> findAll() {
        return findAll(User_.username, true);
    }

    @Override
    public User findUserByName(String username) {
        CriteriaBuilder queryBuilder = getEntityManager().getCriteriaBuilder();
        CriteriaQuery<User> query = queryBuilder.createQuery(User.class);
        Root<User> userQuery = query.from(User.class);
        query.select(userQuery).where(queryBuilder.equal(userQuery.get(User_.username), username));

        try {
            return getEntityManager().createQuery(query).getSingleResult();
        } catch (NoResultException e) {
            return null;
        }
    }

    @Override
    public User findUserByEmail(String email) {
        List<User> list = findByAttribute(User_.email, email);
        if (list.size() > 0) {
            return list.get(0);
        }

        return null;
    }

    @Override
    public Class<User> getPersistenceClass() {
        return User.class;
    }

    @Override
    public List<User> findByUsernameFragment(String usernameFragment) {
        JPAQuery query = new JPAQuery(getEntityManager());
        QUser user = QUser.user;

        return query.from(user)
                .where(user.username.like(usernameFragment).and(user.modificationType.ne(ModificationType.DELETE)))
                .list(user);
    }

}