/*
* 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.solo.service;
import java.io.IOException;
import org.b3log.latke.service.LangPropsService;
import org.b3log.solo.util.TimeZones;
import org.b3log.solo.util.Skins;
import org.json.JSONException;
import java.io.File;
import java.util.Iterator;
import java.util.Locale;
import java.util.Set;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.apache.commons.lang.StringUtils;
import org.b3log.latke.Latkes;
import org.b3log.latke.repository.RepositoryException;
import org.b3log.latke.repository.Transaction;
import org.b3log.latke.service.ServiceException;
import org.b3log.latke.util.Locales;
import org.b3log.latke.util.Strings;
import org.b3log.latke.util.freemarker.Templates;
import org.b3log.solo.SoloServletListener;
import org.b3log.solo.model.Preference;
import org.b3log.solo.model.Skin;
import org.b3log.solo.repository.PreferenceRepository;
import org.b3log.solo.repository.impl.PreferenceRepositoryImpl;
import org.json.JSONArray;
import org.json.JSONObject;
import static org.b3log.solo.model.Preference.*;
/**
* Preference management service.
*
* @author <a href="mailto:DL88250@gmail.com">Liang Ding</a>
* @version 1.0.0.5, May 16, 2012
* @since 0.4.0
*/
public final class PreferenceMgmtService {
/**
* Logger.
*/
private static final Logger LOGGER = Logger.getLogger(PreferenceMgmtService.class.getName());
/**
* Preference repository.
*/
private PreferenceRepository preferenceRepository = PreferenceRepositoryImpl.getInstance();
/**
* Preference query service.
*/
private PreferenceQueryService preferenceQueryService = PreferenceQueryService.getInstance();
/**
* Language service.
*/
private LangPropsService langPropsService = LangPropsService.getInstance();
/**
* Updates the reply notification template with the specified reply
* notification template.
*
* @param replyNotificationTemplate the specified reply notification
* template
* @throws ServiceException service exception
*/
public void updateReplyNotificationTemplate(final JSONObject replyNotificationTemplate) throws ServiceException {
final Transaction transaction = preferenceRepository.beginTransaction();
try {
preferenceRepository.update(Preference.REPLY_NOTIFICATION_TEMPLATE,
replyNotificationTemplate);
transaction.commit();
} catch (final Exception e) {
if (transaction.isActive()) {
transaction.rollback();
}
LOGGER.log(Level.SEVERE, "Updates reply notification failed", e);
throw new ServiceException(e);
}
}
/**
* Updates the preference with the specified preference.
*
* @param preference the specified preference
* @throws ServiceException service exception
*/
public void updatePreference(final JSONObject preference) throws ServiceException {
@SuppressWarnings("unchecked")
final Iterator<String> keys = preference.keys();
while (keys.hasNext()) {
final String key = keys.next();
if (preference.isNull(key)) {
throw new ServiceException("A value is null of preference[key=" + key + "]");
}
}
// TODO: checks preference
final Transaction transaction = preferenceRepository.beginTransaction();
try {
String blogHost = preference.getString(BLOG_HOST).toLowerCase().trim();
if (StringUtils.startsWithIgnoreCase(blogHost, "http://")) {
blogHost = blogHost.substring("http://".length());
}
if (blogHost.endsWith("/")) {
blogHost = blogHost.substring(0, blogHost.length() - 1);
}
LOGGER.log(Level.FINER, "Blog Host[{0}]", blogHost);
preference.put(BLOG_HOST, blogHost);
final String skinDirName = preference.getString(Skin.SKIN_DIR_NAME);
final String skinName = Skins.getSkinName(skinDirName);
preference.put(Skin.SKIN_NAME, skinName);
final Set<String> skinDirNames = Skins.getSkinDirNames();
final JSONArray skinArray = new JSONArray();
for (final String dirName : skinDirNames) {
final JSONObject skin = new JSONObject();
skinArray.put(skin);
final String name = Skins.getSkinName(dirName);
skin.put(Skin.SKIN_NAME, name);
skin.put(Skin.SKIN_DIR_NAME, dirName);
}
final String webRootPath = SoloServletListener.getWebRoot();
final String skinPath = webRootPath + Skin.SKINS + "/" + skinDirName;
LOGGER.log(Level.FINER, "Skin path[{0}]", skinPath);
Templates.CACHE.clear();
preference.put(Skin.SKINS, skinArray.toString());
final String timeZoneId = preference.getString(TIME_ZONE_ID);
TimeZones.setTimeZone(timeZoneId);
preference.put(Preference.SIGNS, preference.get(Preference.SIGNS).toString());
final JSONObject oldPreference = preferenceQueryService.getPreference();
final String adminEmail = oldPreference.getString(ADMIN_EMAIL);
preference.put(ADMIN_EMAIL, adminEmail);
if (!preference.has(PAGE_CACHE_ENABLED)) {
preference.put(PAGE_CACHE_ENABLED, oldPreference.getBoolean(PAGE_CACHE_ENABLED));
}
final boolean pageCacheEnabled = preference.getBoolean(Preference.PAGE_CACHE_ENABLED);
Templates.enableCache(pageCacheEnabled);
final String version = oldPreference.optString(VERSION);
if (!Strings.isEmptyOrNull(version)) {
preference.put(VERSION, version);
}
final String localeString = preference.getString(Preference.LOCALE_STRING);
LOGGER.log(Level.FINER, "Current locale[string={0}]", localeString);
Latkes.setLocale(new Locale(Locales.getLanguage(localeString), Locales.getCountry(localeString)));
preferenceRepository.update(Preference.PREFERENCE, preference);
transaction.commit();
Templates.MAIN_CFG.setDirectoryForTemplateLoading(new File(skinPath));
if (preference.getBoolean(PAGE_CACHE_ENABLED)) {
Latkes.enablePageCache();
} else {
Latkes.disablePageCache();
}
} catch (final JSONException e) {
if (transaction.isActive()) {
transaction.rollback();
}
LOGGER.log(Level.SEVERE, "Updates preference failed", e);
throw new ServiceException(langPropsService.get("updateFailLabel"));
} catch (final RepositoryException e) {
if (transaction.isActive()) {
transaction.rollback();
}
LOGGER.log(Level.SEVERE, "Updates preference failed", e);
throw new ServiceException(langPropsService.get("updateFailLabel"));
} catch (final IOException e) {
if (transaction.isActive()) {
transaction.rollback();
}
LOGGER.log(Level.SEVERE, "Updates preference failed", e);
throw new ServiceException(langPropsService.get("updateFailLabel"));
}
LOGGER.log(Level.FINER, "Updates preference successfully");
}
/**
* Gets the {@link PreferenceMgmtService} singleton.
*
* @return the singleton
*/
public static PreferenceMgmtService getInstance() {
return SingletonHolder.SINGLETON;
}
/**
* Private constructor.
*/
private PreferenceMgmtService() {
}
/**
* Singleton holder.
*
* @author <a href="mailto:DL88250@gmail.com">Liang Ding</a>
* @version 1.0.0.0, Oct 24, 2011
*/
private static final class SingletonHolder {
/**
* Singleton.
*/
private static final PreferenceMgmtService SINGLETON = new PreferenceMgmtService();
/**
* Private default constructor.
*/
private SingletonHolder() {
}
}
}