/*
* Copyright 2008 biaoping.yin
*
* 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.frameworkset.web.servlet;
import java.util.Locale;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.frameworkset.web.servlet.i18n.AcceptHeaderLocaleResolver;
/**
* <p>Title: LocaleResolver.java</p>
* <p>Description: </p>
* <p>bboss workgroup</p>
* <p>Copyright (c) 2008</p>
* @Date 2010-9-24
* @author biaoping.yin
* @see AcceptHeaderLocaleResolver
* @see RequestContext#getLocale
* @version 1.0
*/
public interface LocaleResolver {
/**
* Resolve the current locale via the given request.
* Should return a default locale as fallback in any case.
* @param request the request to resolve the locale for
* @return the current locale (never <code>null</code>)
*/
Locale resolveLocale(HttpServletRequest request);
String resolveLocaleCode(HttpServletRequest request);
/**
* Set the current locale to the given one.
* @param request the request to be used for locale modification
* @param response the response to be used for locale modification
* @param locale the new locale, or <code>null</code> to clear the locale
* @throws UnsupportedOperationException if the LocaleResolver implementation
* does not support dynamic changing of the theme
*/
void setLocale(HttpServletRequest request, HttpServletResponse response, Locale locale);
/**
* Set the current locale to the given one.
* @param request the request to be used for locale modification
* @param response the response to be used for locale modification
* @param locale the new locale, or <code>null</code> to clear the locale
* @throws UnsupportedOperationException if the LocaleResolver implementation
* does not support dynamic changing of the theme
*/
void setLocale(HttpServletRequest request, HttpServletResponse response, String locale);
}