001/* 002 * Copyright 2002-2013 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.i18n; 018 019import java.util.Locale; 020import java.util.TimeZone; 021import javax.servlet.http.HttpServletRequest; 022import javax.servlet.http.HttpServletResponse; 023 024import org.springframework.context.i18n.SimpleLocaleContext; 025import org.springframework.web.servlet.LocaleContextResolver; 026 027/** 028 * Abstract base class for {@link LocaleContextResolver} implementations. 029 * Provides support for a default locale and a default time zone. 030 * 031 * <p>Also provides pre-implemented versions of {@link #resolveLocale} and {@link #setLocale}, 032 * delegating to {@link #resolveLocaleContext} and {@link #setLocaleContext}. 033 * 034 * @author Juergen Hoeller 035 * @since 4.0 036 * @see #setDefaultLocale 037 * @see #setDefaultTimeZone 038 */ 039public abstract class AbstractLocaleContextResolver extends AbstractLocaleResolver implements LocaleContextResolver { 040 041 private TimeZone defaultTimeZone; 042 043 044 /** 045 * Set a default TimeZone that this resolver will return if no other time zone found. 046 */ 047 public void setDefaultTimeZone(TimeZone defaultTimeZone) { 048 this.defaultTimeZone = defaultTimeZone; 049 } 050 051 /** 052 * Return the default TimeZone that this resolver is supposed to fall back to, if any. 053 */ 054 public TimeZone getDefaultTimeZone() { 055 return this.defaultTimeZone; 056 } 057 058 059 @Override 060 public Locale resolveLocale(HttpServletRequest request) { 061 return resolveLocaleContext(request).getLocale(); 062 } 063 064 @Override 065 public void setLocale(HttpServletRequest request, HttpServletResponse response, Locale locale) { 066 setLocaleContext(request, response, (locale != null ? new SimpleLocaleContext(locale) : null)); 067 } 068 069}