/*
* 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.wicket.markup.html.pages;
import javax.servlet.http.HttpServletResponse;
import org.apache.wicket.Page;
import org.apache.wicket.markup.MarkupException;
import org.apache.wicket.markup.MarkupStream;
import org.apache.wicket.markup.html.WebMarkupContainer;
import org.apache.wicket.markup.html.WebPage;
import org.apache.wicket.markup.html.basic.Label;
import org.apache.wicket.markup.html.basic.MultiLineLabel;
import org.apache.wicket.markup.html.debug.PageView;
import org.apache.wicket.markup.html.link.Link;
import org.apache.wicket.protocol.http.WebResponse;
import org.apache.wicket.util.string.Strings;
/**
* Shows a runtime exception on a nice HTML page.
*
* @author Jonathan Locke
*/
public class ExceptionErrorPage extends WebPage<Object>
{
private static final long serialVersionUID = 1L;
/** Keep a reference to the root cause. WicketTester will use it */
private final transient Throwable throwable;
/**
* Constructor.
*
* @param throwable
* The exception to show
* @param page
* The page being rendered when the exception was thrown
*/
public ExceptionErrorPage(final Throwable throwable, final Page< ? > page)
{
this.throwable = throwable;
// Add exception label
add(new MultiLineLabel<String>("exception", Strings.toString(throwable)));
// Get values
String resource = "";
String markup = "";
MarkupStream markupStream = null;
if (throwable instanceof MarkupException)
{
markupStream = ((MarkupException)throwable).getMarkupStream();
if (markupStream != null)
{
markup = markupStream.toHtmlDebugString();
resource = markupStream.getResource().toString();
}
}
// Create markup label
final MultiLineLabel<String> markupLabel = new MultiLineLabel<String>("markup", markup);
markupLabel.setEscapeModelStrings(false);
// Add container with markup highlighted
final WebMarkupContainer<String> markupHighlight = new WebMarkupContainer<String>(
"markupHighlight");
markupHighlight.add(markupLabel);
markupHighlight.add(new Label<String>("resource", resource));
add(markupHighlight);
// Show container if markup stream is available
markupHighlight.setVisible(markupStream != null);
add(new Link<Object>("displayPageViewLink")
{
private static final long serialVersionUID = 1L;
@Override
public void onClick()
{
ExceptionErrorPage.this.replace(new PageView("componentTree", page));
setVisible(false);
}
});
add(new Label<String>("componentTree", ""));
}
/**
* @see org.apache.wicket.markup.html.WebPage#configureResponse()
*/
@Override
protected void configureResponse()
{
super.configureResponse();
if (getWebRequestCycle().getResponse() instanceof WebResponse)
{
getWebRequestCycle().getWebResponse().getHttpServletResponse().setStatus(
HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
}
}
/**
* Get access to the exception
*
* @return The exception
*/
public Throwable getThrowable()
{
return throwable;
}
/**
* @see org.apache.wicket.Page#isErrorPage()
*/
@Override
public boolean isErrorPage()
{
return true;
}
/**
* @see org.apache.wicket.Component#isVersioned()
*/
@Override
public boolean isVersioned()
{
return false;
}
}