// Copyright 2005 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.tapestry.portlet;
import java.io.IOException;
import java.io.PrintWriter;
import javax.portlet.PortletURL;
import org.apache.tapestry.IRequestCycle;
import org.apache.tapestry.engine.IEngineService;
import org.apache.tapestry.engine.ILink;
import org.apache.tapestry.util.ContentType;
import org.apache.tapestry.web.WebRequest;
import org.apache.tapestry.web.WebResponse;
import org.apache.tapestry.web.WebSession;
/**
* @author Howard M. Lewis Ship
* @since 4.0
* @see org.apache.tapestry.portlet.PortletConstants#PORTLET_EXCEPTION_MARKUP_ATTRIBUTE
*/
public class ExceptionService implements IEngineService
{
private WebRequest _request;
private WebResponse _response;
private PortletRequestGlobals _globals;
public ILink getLink(IRequestCycle cycle, boolean post, Object parameter)
{
throw new UnsupportedOperationException(PortletMessages.unsupportedMethod("getLink"));
}
public void service(IRequestCycle cycle) throws IOException
{
WebSession session = _request.getSession(true);
String markup = (String) session
.getAttribute(PortletConstants.PORTLET_EXCEPTION_MARKUP_ATTRIBUTE);
PrintWriter writer = _response.getPrintWriter(new ContentType("text/html"));
PortletURL url = _globals.getRenderResponse().createActionURL();
writer.println("<span class=\"portlet-msg-error\">An exception has occured.</span>");
writer.println("<br/>");
writer.println("<a href=\"" + url.toString() + "\">Click here to continue</a>");
writer.print("<br/><hr/>");
writer.println();
writer.print(markup);
}
public String getName()
{
return PortletConstants.EXCEPTION_SERVICE;
}
public void setRequest(WebRequest request)
{
_request = request;
}
public void setResponse(WebResponse response)
{
_response = response;
}
public void setGlobals(PortletRequestGlobals globals)
{
_globals = globals;
}
}