001// Copyright 2005 The Apache Software Foundation
002//
003// Licensed under the Apache License, Version 2.0 (the "License");
004// you may not use this file except in compliance with the License.
005// You may obtain a copy of the License at
006//
007//     http://www.apache.org/licenses/LICENSE-2.0
008//
009// Unless required by applicable law or agreed to in writing, software
010// distributed under the License is distributed on an "AS IS" BASIS,
011// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012// See the License for the specific language governing permissions and
013// limitations under the License.
014
015package org.apache.tapestry.error;
016
017import java.io.IOException;
018
019import org.apache.tapestry.IPage;
020import org.apache.tapestry.IRequestCycle;
021import org.apache.tapestry.StaleSessionException;
022import org.apache.tapestry.services.ResponseRenderer;
023
024/**
025 * Used to activate a particular page to report the
026 * {@link org.apache.tapestry.StaleSessionException}.
027 * 
028 * @author Howard M. Lewis Ship
029 * @since 4.0
030 */
031public class StaleSessionExceptionPresenterImpl implements StaleSessionExceptionPresenter
032{
033    private ResponseRenderer _responseRenderer;
034
035    private String _pageName;
036
037    public void presentStaleSessionException(IRequestCycle cycle, StaleSessionException cause)
038            throws IOException
039    {
040        IPage exceptionPage = cycle.getPage(_pageName);
041
042        cycle.activate(exceptionPage);
043
044        _responseRenderer.renderResponse(cycle);
045    }
046
047    public void setPageName(String pageName)
048    {
049        _pageName = pageName;
050    }
051
052    public void setResponseRenderer(ResponseRenderer responseRenderer)
053    {
054        _responseRenderer = responseRenderer;
055    }
056
057}