/*
* Copyright (c) 2009, 2010, 2011, 2012, B3log Team
*
* 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.b3log.latke.repository.impl;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.b3log.latke.Keys;
import org.b3log.latke.model.Role;
import org.b3log.latke.model.User;
import org.b3log.latke.repository.AbstractRepository;
import org.b3log.latke.repository.FilterOperator;
import org.b3log.latke.repository.PropertyFilter;
import org.b3log.latke.repository.Query;
import org.b3log.latke.repository.RepositoryException;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
/**
* User repository implementation.
*
* @author <a href="mailto:DL88250@gmail.com">Liang Ding</a>
* @version 1.0.0.1, Jun 27, 2012
*/
public final class UserRepositoryImpl extends AbstractRepository {
/**
* Logger.
*/
private static final Logger LOGGER = Logger.getLogger(UserRepositoryImpl.class.getName());
/**
* Gets user by the specified email.
*
* @param email the specified email
* @return user, returns {@code null} if not found
*/
public JSONObject getByEmail(final String email) {
final Query query = new Query();
query.setFilter(new PropertyFilter(User.USER_EMAIL, FilterOperator.EQUAL, email.toLowerCase().trim()));
try {
final JSONObject result = get(query);
final JSONArray array = result.getJSONArray(Keys.RESULTS);
if (0 == array.length()) {
return null;
}
return array.getJSONObject(0);
} catch (final Exception e) {
LOGGER.log(Level.SEVERE, e.getMessage(), e);
return null;
}
}
/**
* Gets the administrator.
*
* @return administrator, returns {@code null} if not found
*/
public JSONObject getAdmin() {
final Query query = new Query();
query.setFilter(new PropertyFilter(User.USER_ROLE, FilterOperator.EQUAL, Role.ADMIN_ROLE));
try {
final JSONObject result = get(query);
final JSONArray array = result.getJSONArray(Keys.RESULTS);
if (0 == array.length()) {
return null;
}
return array.getJSONObject(0);
} catch (final Exception e) {
LOGGER.log(Level.SEVERE, e.getMessage(), e);
return null;
}
}
/**
* Determines the specified email is administrator's or not.
*
* @param email the specified email
* @return {@code true} if it is, returns {@code false} otherwise
* @throws RepositoryException repository exception
*/
public boolean isAdminEmail(final String email) throws RepositoryException {
final JSONObject user = getByEmail(email);
if (null == user) {
return false;
}
try {
return Role.ADMIN_ROLE.equals(user.getString(User.USER_ROLE));
} catch (final JSONException e) {
LOGGER.log(Level.SEVERE, e.getMessage(), e);
throw new RepositoryException(e);
}
}
/**
* Gets the {@link UserRepositoryImpl} singleton.
*
* @return the singleton
*/
public static UserRepositoryImpl getInstance() {
return SingletonHolder.SINGLETON;
}
/**
* Private constructor.
*
* @param name the specified name
*/
private UserRepositoryImpl(final String name) {
super(name);
}
/**
* Singleton holder.
*
* @author <a href="mailto:DL88250@gmail.com">Liang Ding</a>
* @version 1.0.0.0, Jan 12, 2011
*/
private static final class SingletonHolder {
/**
* Singleton.
*/
private static final UserRepositoryImpl SINGLETON =
new UserRepositoryImpl(User.USER);
/**
* Private default constructor.
*/
private SingletonHolder() {
}
}
}