/******************************************************************************
* JBoss, a division of Red Hat *
* Copyright 2006, Red Hat Middleware, LLC, and individual *
* contributors as indicated by the @authors tag. See the *
* copyright.txt in the distribution for a full listing of *
* individual contributors. *
* *
* This is free software; you can redistribute it and/or modify it *
* under the terms of the GNU Lesser General Public License as *
* published by the Free Software Foundation; either version 2.1 of *
* the License, or (at your option) any later version. *
* *
* This software is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
* Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser General Public *
* License along with this software; if not, write to the Free *
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA *
* 02110-1301 USA, or see the FSF site: http://www.fsf.org. *
******************************************************************************/
package org.gatein.pc.portlet.aspects;
import org.gatein.pc.portlet.container.PortletApplication;
import org.gatein.pc.portlet.container.PortletContainer;
import org.gatein.pc.portlet.container.ContainerPortletInvoker;
import org.gatein.pc.api.invocation.PortletInvocation;
import org.gatein.pc.portlet.PortletInvokerInterceptor;
import org.gatein.pc.api.invocation.response.PortletInvocationResponse;
import org.gatein.pc.api.spi.ServerContext;
import org.gatein.pc.api.PortletInvokerException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import java.io.IOException;
/**
* This interceptor dispatch the call to the target web application.
*
* @author <a href="mailto:julien@jboss.org">Julien Viet</a>
* @version $Revision: 7226 $
*/
public class ContextDispatcherInterceptor extends PortletInvokerInterceptor
{
/** . */
public static final String REQ_ATT_COMPONENT_INVOCATION = "org.jboss.portal.attribute.component_invocation";
public ContextDispatcherInterceptor()
{
}
public PortletInvocationResponse invoke(PortletInvocation invocation) throws IllegalArgumentException, PortletInvokerException
{
PortletContainer container = (PortletContainer)invocation.getAttribute(ContainerPortletInvoker.PORTLET_CONTAINER);
PortletApplication portletApplication = container.getPortletApplication();
ServerContext reqCtx = invocation.getServerContext();
ServletContext targetCtx = portletApplication.getContext().getServletContext();
try
{
CallableImpl callable = new CallableImpl(invocation);
reqCtx.dispatch(targetCtx, invocation.getRequest(), invocation.getResponse(), callable);
return callable.response;
}
catch (Exception e)
{
if (e instanceof PortletInvokerException)
{
throw (PortletInvokerException)e;
}
else if (e instanceof RuntimeException)
{
throw (RuntimeException)e;
}
else if (e instanceof ServletException)
{
ServletException se = (ServletException)e;
//
if (se.getRootCause() != null && se.getRootCause() instanceof Exception)
{
e = (Exception)se.getRootCause();
}
}
//
throw new PortletInvokerException(e);
}
}
private class CallableImpl implements ServerContext.Callable
{
/** . */
private final PortletInvocation invocation;
/** . */
private PortletInvocationResponse response;
private CallableImpl(PortletInvocation invocation)
{
this.invocation = invocation;
}
@Override
public void call(ServletContext context, HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException
{
HttpServletRequest oldReq = invocation.getRequest();
HttpServletResponse oldResp = invocation.getResponse();
try
{
invocation.setRequest(req);
invocation.setResponse(resp);
req.setAttribute(REQ_ATT_COMPONENT_INVOCATION, invocation);
response = ContextDispatcherInterceptor.super.invoke(invocation);
}
catch (Exception e)
{
throw new ServletException(e);
}
finally
{
req.setAttribute(REQ_ATT_COMPONENT_INVOCATION, null);
invocation.setRequest(oldReq);
invocation.setResponse(oldResp);
}
}
}
}