| /* |
| * 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.ServletRequest; |
| |
| /** |
| * Implementation of the {@link org.apache.commons.jxpath.DynamicPropertyHandler} |
| * interface that provides access to attributes and parameters |
| * of a {@link ServletRequest}. |
| * |
| * @author Dmitri Plotnikov |
| * @version $Revision$ $Date$ |
| */ |
| public class ServletRequestHandler extends HttpSessionHandler { |
| |
| protected void collectPropertyNames(HashSet set, Object bean) { |
| super.collectPropertyNames(set, bean); |
| ServletRequestAndContext handle = (ServletRequestAndContext) bean; |
| ServletRequest servletRequest = handle.getServletRequest(); |
| Enumeration e = servletRequest.getAttributeNames(); |
| while (e.hasMoreElements()) { |
| set.add(e.nextElement()); |
| } |
| e = servletRequest.getParameterNames(); |
| while (e.hasMoreElements()) { |
| set.add(e.nextElement()); |
| } |
| } |
| |
| public Object getProperty(Object bean, String property) { |
| ServletRequestAndContext handle = (ServletRequestAndContext) bean; |
| ServletRequest servletRequest = handle.getServletRequest(); |
| String[] strings = servletRequest.getParameterValues(property); |
| |
| if (strings != null) { |
| if (strings.length == 0) { |
| return null; |
| } |
| if (strings.length == 1) { |
| return strings[0]; |
| } |
| return strings; |
| } |
| |
| Object object = servletRequest.getAttribute(property); |
| if (object != null) { |
| return object; |
| } |
| |
| return super.getProperty(bean, property); |
| } |
| |
| public void setProperty(Object request, String property, Object value) { |
| ((ServletRequestAndContext) request).getServletRequest().setAttribute(property, value); |
| } |
| } |