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.theme; 018 019import javax.servlet.http.HttpServletRequest; 020import javax.servlet.http.HttpServletResponse; 021 022/** 023 * {@link org.springframework.web.servlet.ThemeResolver} implementation 024 * that simply uses a fixed theme. The fixed name can be defined via 025 * the "defaultThemeName" property; out of the box, it is "theme". 026 * 027 * <p>Note: Does not support {@code setThemeName}, as the fixed theme 028 * cannot be changed. 029 * 030 * @author Jean-Pierre Pawlak 031 * @author Juergen Hoeller 032 * @since 17.06.2003 033 * @see #setDefaultThemeName 034 */ 035public class FixedThemeResolver extends AbstractThemeResolver { 036 037 @Override 038 public String resolveThemeName(HttpServletRequest request) { 039 return getDefaultThemeName(); 040 } 041 042 @Override 043 public void setThemeName(HttpServletRequest request, HttpServletResponse response, String themeName) { 044 throw new UnsupportedOperationException("Cannot change theme - use a different theme resolution strategy"); 045 } 046 047}