com.bibisco.manager.LocaleManager.java Source code

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Here is the source code for com.bibisco.manager.LocaleManager.java

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/*
 * Copyright (C) 2014 Andrea Feccomandi
 *
 * Licensed under the terms of GNU GPL License;
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.gnu.org/licenses/gpl-2.0.html
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY. 
 * See the GNU General Public License for more details.
 * 
 */
package com.bibisco.manager;

import java.util.Locale;

import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;

import com.bibisco.BibiscoException;
import com.bibisco.dao.SqlSessionFactoryManager;
import com.bibisco.dao.client.PropertiesMapper;
import com.bibisco.dao.model.Properties;
import com.bibisco.log.Log;

/**
 * Application's locale manager.
 * 
 * @author Andrea Feccomandi
 *
 */
public class LocaleManager {

    private static LocaleManager mLocaleManager = null;
    private static Log mLog = Log.getInstance(LocaleManager.class);

    private Locale mLocale;

    private LocaleManager() {
        mLocale = initLocale();
    }

    public synchronized static LocaleManager getInstance() {
        if (mLocaleManager == null) {
            mLocaleManager = new LocaleManager();
        }

        return mLocaleManager;
    }

    public Locale getLocale() {
        return mLocale;
    }

    private Locale initLocale() {

        Locale lLocale = null;

        mLog.debug("Start initLocale()");

        SqlSessionFactory lSqlSessionFactory = SqlSessionFactoryManager.getInstance().getSqlSessionFactoryBibisco();
        SqlSession lSqlSession = lSqlSessionFactory.openSession();
        try {

            PropertiesMapper lPropertiesMapper = lSqlSession.getMapper(PropertiesMapper.class);
            Properties lProperties = lPropertiesMapper.selectByPrimaryKey("locale");

            if (lProperties != null) {
                String[] lStrLocaleSplit = lProperties.getValue().split("_");
                lLocale = new Locale(lStrLocaleSplit[0], lStrLocaleSplit[1]);

            } else {
                lLocale = Locale.getDefault();

                // save locale
                lProperties = new Properties();
                lProperties.setProperty("locale");
                lProperties.setValue(lLocale.toString());
                lPropertiesMapper.insert(lProperties);

                lSqlSession.commit();
            }

        } catch (Throwable t) {
            lSqlSession.rollback();
            mLog.error(t);
            throw new BibiscoException(t, BibiscoException.SQL_EXCEPTION);
        } finally {
            lSqlSession.close();
        }

        mLog.debug("End initLocale()");

        return lLocale;
    }

    public void saveLocale(String pStrLocale) {

        mLog.debug("Start saveLocale(String)");

        SqlSessionFactory lSqlSessionFactory = SqlSessionFactoryManager.getInstance().getSqlSessionFactoryBibisco();
        SqlSession lSqlSession = lSqlSessionFactory.openSession();
        try {

            PropertiesMapper lPropertiesMapper = lSqlSession.getMapper(PropertiesMapper.class);
            Properties lProperties = new Properties();
            lProperties.setProperty("locale");
            lProperties.setValue(pStrLocale);
            lPropertiesMapper.updateByPrimaryKey(lProperties);
            lSqlSession.commit();

            String[] lStrLocaleSplit = pStrLocale.split("_");
            mLocale = new Locale(lStrLocaleSplit[0], lStrLocaleSplit[1]);

        } catch (Throwable t) {
            lSqlSession.rollback();
            mLog.error(t);
            throw new BibiscoException(t, BibiscoException.SQL_EXCEPTION);
        } finally {
            lSqlSession.close();
        }

        mLog.debug("End saveLocale(String)");
    }
}