- /*
- * 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.jsp.PageContext;
-
- import org.apache.commons.jxpath.DynamicPropertyHandler;
-
- /**
- * Implementation of the DynamicPropertyHandler interface that provides
- * access to attributes of a PageContext in all scopes.
- *
- * @author Dmitri Plotnikov
- * @version $Revision: 1.6 $ $Date: 2004/05/08 15:10:49 $
- */
- public class PageContextHandler implements DynamicPropertyHandler {
-
- public String[] getPropertyNames(Object pageContext) {
- HashSet list = new HashSet();
- Enumeration e =
- ((PageContext) pageContext).getAttributeNamesInScope(
- PageContext.PAGE_SCOPE);
- while (e.hasMoreElements()) {
- list.add(e.nextElement());
- }
- e =
- ((PageContext) pageContext).getAttributeNamesInScope(
- PageContext.REQUEST_SCOPE);
- while (e.hasMoreElements()) {
- list.add(e.nextElement());
- }
- e =
- ((PageContext) pageContext).getAttributeNamesInScope(
- PageContext.SESSION_SCOPE);
- while (e.hasMoreElements()) {
- list.add(e.nextElement());
- }
- e =
- ((PageContext) pageContext).getAttributeNamesInScope(
- PageContext.APPLICATION_SCOPE);
- while (e.hasMoreElements()) {
- list.add(e.nextElement());
- }
- return (String[]) list.toArray(new String[0]);
- }
-
- /**
- * Returns <code>pageContext.findAttribute(property)</code>.
- */
- public Object getProperty(Object pageContext, String property) {
- return ((PageContext) pageContext).findAttribute(property);
- }
-
- public void setProperty(
- Object pageContext,
- String property,
- Object value)
- {
- ((PageContext) pageContext).setAttribute(
- property,
- value,
- PageContext.PAGE_SCOPE);
- }
- }