001/* 002 * Copyright 2002-2016 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * https://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package org.springframework.web.servlet.view.tiles3; 018 019import java.util.Locale; 020import javax.servlet.http.HttpServletRequest; 021 022import org.apache.tiles.locale.impl.DefaultLocaleResolver; 023import org.apache.tiles.request.Request; 024import org.apache.tiles.request.servlet.NotAServletEnvironmentException; 025import org.apache.tiles.request.servlet.ServletUtil; 026 027import org.springframework.web.servlet.support.RequestContextUtils; 028 029/** 030 * Tiles LocaleResolver adapter that delegates to a Spring 031 * {@link org.springframework.web.servlet.LocaleResolver}, exposing the 032 * DispatcherServlet-managed locale. 033 * 034 * <p>This adapter gets automatically registered by {@link TilesConfigurer}. 035 * 036 * @author Nicolas Le Bas 037 * @since 3.2 038 * @see org.apache.tiles.definition.UrlDefinitionsFactory#LOCALE_RESOLVER_IMPL_PROPERTY 039 */ 040public class SpringLocaleResolver extends DefaultLocaleResolver { 041 042 @Override 043 public Locale resolveLocale(Request request) { 044 try { 045 HttpServletRequest servletRequest = ServletUtil.getServletRequest(request).getRequest(); 046 if (servletRequest != null) { 047 return RequestContextUtils.getLocale(servletRequest); 048 } 049 } 050 catch (NotAServletEnvironmentException ex) { 051 // ignore 052 } 053 return super.resolveLocale(request); 054 } 055 056}