de.logicline.splash.dao.UserDaoImpl.java Source code

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Here is the source code for de.logicline.splash.dao.UserDaoImpl.java

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package de.logicline.splash.dao;

import java.util.List;

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

import org.apache.log4j.Logger;
import org.springframework.stereotype.Repository;

import de.logicline.splash.model.UserEntity;

/**
 * The MIT License (MIT)
 *
 * Copyright (c) 2015  logicline GmbH
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 *  copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 * 
 */

/** 
 * @see UserDao 
 *
 */
@Repository
public class UserDaoImpl extends AbstractDaoImpl<UserEntity> implements UserDao {

    private Logger log = Logger.getLogger(this.getClass().getName());

    public UserDaoImpl() {
        super(UserEntity.class);
    }

    public String getUserId(String token) {

        UserEntity result = getUser(token);
        if (result != null) {
            return result.getUserId();
        }
        return null;
    }

    public UserEntity getUser(String token) {
        CriteriaBuilder cb = getEntityManager().getCriteriaBuilder();
        CriteriaQuery<UserEntity> cq = cb.createQuery(UserEntity.class);
        Root<UserEntity> user = cq.from(UserEntity.class);
        cq.select(user);
        cq.where(cb.equal(user.get("token"), token));
        List<UserEntity> resultList = getEntityManager().createQuery(cq).getResultList();

        UserEntity result = null;
        if (resultList != null && resultList.size() > 0) {
            result = resultList.get(0);
            return result;
        }

        return null;
    }

    public UserEntity getUserByName(String username) {
        CriteriaBuilder cb = getEntityManager().getCriteriaBuilder();
        CriteriaQuery<UserEntity> cq = cb.createQuery(UserEntity.class);
        Root<UserEntity> user = cq.from(UserEntity.class);
        cq.select(user);
        cq.where(cb.equal(user.get("username"), username));
        List<UserEntity> resultList = getEntityManager().createQuery(cq).getResultList();

        if (resultList == null || resultList.size() == 0) {
            log.debug("UserEntity not found");
            return null;
        } else if (resultList.size() > 1) {
            log.warn("Multiple Users found for User with Username: " + username);
            return null;
        }

        return resultList.get(0);
    }

}