- /*
- * Copyright 1999-2004 The Apache Software Foundation
- *
- * Licensed 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 DynamicPropertyHandler interface that provides
- * access to attributes and parameters of a ServletRequest.
- *
- * @author Dmitri Plotnikov
- * @version $Revision: 1.6 $ $Date: 2004/05/08 15:10:49 $
- */
- 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) {
- ((ServletRequest) request).setAttribute(property, value);
- }
- }