| /* |
| * $Id$ |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.apache.tiles.request.freemarker; |
| |
| import org.apache.tiles.request.ApplicationContext; |
| import org.apache.tiles.request.servlet.ServletUtil; |
| |
| import freemarker.core.Environment; |
| import freemarker.ext.servlet.FreemarkerServlet; |
| import freemarker.ext.servlet.HttpRequestHashModel; |
| import freemarker.ext.servlet.ServletContextHashModel; |
| import freemarker.template.TemplateModelException; |
| |
| /** |
| * Utilities to work with Freemarker requests. |
| * |
| * @version $Rev$ $Date$ |
| */ |
| public final class FreemarkerRequestUtil { |
| |
| /** |
| * Constructor. |
| */ |
| private FreemarkerRequestUtil() { |
| } |
| |
| /** |
| * Returns the HTTP request hash model. |
| * |
| * @param env The current FreeMarker environment. |
| * @return The request hash model. |
| * @since 2.2.0 |
| */ |
| public static HttpRequestHashModel getRequestHashModel(Environment env) { |
| try { |
| return (HttpRequestHashModel) env.getDataModel().get( |
| FreemarkerServlet.KEY_REQUEST); |
| } catch (TemplateModelException e) { |
| throw new NotAvailableFreemarkerServletException( |
| "Exception got when obtaining the request hash model", e); |
| } |
| } |
| |
| /** |
| * Returns the servlet context hash model. |
| * |
| * @param env The current FreeMarker environment. |
| * @return The servlet context hash model. |
| * @since 2.2.0 |
| */ |
| public static ServletContextHashModel getServletContextHashModel( |
| Environment env) { |
| try { |
| return (ServletContextHashModel) env.getDataModel().get( |
| FreemarkerServlet.KEY_APPLICATION); |
| } catch (TemplateModelException e) { |
| throw new NotAvailableFreemarkerServletException( |
| "Exception got when obtaining the application hash model", |
| e); |
| } |
| } |
| |
| /** |
| * Returns the application context. It must be |
| * first saved creating an {@link ApplicationContext} and using |
| * {@link org.apache.tiles.request.util.ApplicationAccess#register(ApplicationContext)}. |
| * |
| * @param env The Freemarker environment. |
| * @return The |
| */ |
| public static ApplicationContext getApplicationContext( |
| Environment env) { |
| return ServletUtil |
| .getApplicationContext(getServletContextHashModel(env) |
| .getServlet().getServletContext()); |
| } |
| |
| } |