| /* |
| * 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.commons.jxpath.servlet; |
| |
| import java.util.Enumeration; |
| import java.util.HashSet; |
| import javax.servlet.http.HttpSession; |
| |
| import org.apache.commons.jxpath.JXPathException; |
| |
| /** |
| * Implementation of the {@link org.apache.commons.jxpath.DynamicPropertyHandler} |
| * interface that provides access to attributes of a @{link HttpSession}. |
| * |
| * @author Dmitri Plotnikov |
| * @version $Revision$ $Date$ |
| */ |
| public class HttpSessionHandler extends ServletContextHandler { |
| |
| protected void collectPropertyNames(HashSet set, Object bean) { |
| HttpSessionAndServletContext handle = |
| (HttpSessionAndServletContext) bean; |
| super.collectPropertyNames(set, handle.getServletContext()); |
| HttpSession session = handle.getSession(); |
| if (session != null) { |
| Enumeration e = session.getAttributeNames(); |
| while (e.hasMoreElements()) { |
| set.add(e.nextElement()); |
| } |
| } |
| } |
| |
| public Object getProperty(Object bean, String property) { |
| HttpSessionAndServletContext handle = |
| (HttpSessionAndServletContext) bean; |
| HttpSession session = handle.getSession(); |
| if (session != null) { |
| Object object = session.getAttribute(property); |
| if (object != null) { |
| return object; |
| } |
| } |
| return super.getProperty(handle.getServletContext(), property); |
| } |
| |
| public void setProperty(Object bean, String property, Object value) { |
| HttpSessionAndServletContext handle = |
| (HttpSessionAndServletContext) bean; |
| HttpSession session = handle.getSession(); |
| if (session != null) { |
| session.setAttribute(property, value); |
| } |
| else { |
| throw new JXPathException("Cannot set session attribute: " |
| + "there is no session"); |
| } |
| } |
| } |