| /* |
| * 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 freemarker.ext.servlet; |
| |
| import javax.servlet.GenericServlet; |
| import javax.servlet.ServletContext; |
| |
| import freemarker.template.ObjectWrapper; |
| import freemarker.template.TemplateHashModel; |
| import freemarker.template.TemplateModel; |
| import freemarker.template.TemplateModelException; |
| |
| /** |
| * TemplateHashModel wrapper for a ServletContext attributes. |
| */ |
| public final class ServletContextHashModel implements TemplateHashModel { |
| private final GenericServlet servlet; |
| private final ServletContext servletctx; |
| private final ObjectWrapper wrapper; |
| |
| public ServletContextHashModel( |
| GenericServlet servlet, ObjectWrapper wrapper) { |
| this.servlet = servlet; |
| this.servletctx = servlet.getServletContext(); |
| this.wrapper = wrapper; |
| } |
| |
| /** |
| * @deprecated use |
| * {@link #ServletContextHashModel(GenericServlet, ObjectWrapper)} instead. |
| */ |
| @Deprecated |
| public ServletContextHashModel( |
| ServletContext servletctx, ObjectWrapper wrapper) { |
| this.servlet = null; |
| this.servletctx = servletctx; |
| this.wrapper = wrapper; |
| } |
| |
| @Override |
| public TemplateModel get(String key) throws TemplateModelException { |
| return wrapper.wrap(servletctx.getAttribute(key)); |
| } |
| |
| @Override |
| public boolean isEmpty() { |
| return !servletctx.getAttributeNames().hasMoreElements(); |
| } |
| |
| /** |
| * Returns the underlying servlet. Can return null if this object was |
| * created using the deprecated constructor. |
| */ |
| public GenericServlet getServlet() { |
| return servlet; |
| } |
| } |