/*
* Copyright (c) 2002-2016, Mairie de Paris
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright notice
* and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice
* and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* 3. Neither the name of 'Mairie de Paris' nor 'Lutece' nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* License 1.0
*/
package fr.paris.lutece.portal.web.l10n;
import fr.paris.lutece.portal.service.datastore.DatastoreService;
import fr.paris.lutece.portal.service.util.AppLogService;
import java.util.Locale;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
/**
* LocaleService
*/
public final class LocaleService
{
private static final String ATTRIBUTE_SELECTED_LOCALE = "LUTECE_ATTRIBUTE_USER_SELECTED_LOCALE";
private static final String DSKEY_LANGUAGE_DEFAULT = "portal.site.site_property.locale.default";
private static final String LANGUAGE_DEFAULT = "en";
private static Locale _locale;
/**
* Private constructor
*/
private LocaleService( )
{
}
/**
* Set the locale selected by the user in the front office. The user may select a language without been authenticated.
*
* @param request
* The request
* @param locale
* The locale
*/
public static void setUserSelectedLocale( HttpServletRequest request, Locale locale )
{
HttpSession session = request.getSession( true );
session.setAttribute( ATTRIBUTE_SELECTED_LOCALE, locale );
}
/**
* Get a Locale selected by the user in front office
*
* @param request
* The HTTP request
* @return The locale selected, or the default jvm locale if no locale has been selected
*/
public static Locale getUserSelectedLocale( HttpServletRequest request )
{
Locale locale = LocaleService.getDefault( );
HttpSession session = request.getSession( );
if ( session != null )
{
Locale localeSession = (Locale) session.getAttribute( ATTRIBUTE_SELECTED_LOCALE );
if ( localeSession != null )
{
locale = localeSession;
}
}
return locale;
}
/**
* Return a Lutece defined default Locale
*
* @return The locale
*/
public static Locale getDefault( )
{
if ( _locale == null )
{
String strCountry = DatastoreService.getInstanceDataValue( DSKEY_LANGUAGE_DEFAULT, LANGUAGE_DEFAULT );
for ( String strISOContry : Locale.getISOCountries( ) )
{
if ( strISOContry.equalsIgnoreCase( strCountry ) )
{
_locale = new Locale( strCountry );
AppLogService.info( "LocaleService : default locale set to : " + strCountry );
return _locale;
}
}
_locale = Locale.getDefault( );
AppLogService.error( "LocaleService : invalid defined locale " + strCountry + " - default set to " + LANGUAGE_DEFAULT );
}
return _locale;
}
}