Hi John,
> My particular use is within a servlet filter.
AbstractFacesServlet extends HttpServlet. I have no experiences with Filters.
Below the source code of the AbstractFacesServlet class in case the link from
previous email get broken.
regards Dani
import javax.servlet.ServletConfig;
public abstract class AbstractFacesServlet extends HttpServlet {
public AbstractFacesServlet() {
super();
}
public void init(ServletConfig config) throws ServletException {
super.init(config);
}
protected abstract void processRequest(HttpServletRequest request,
HttpServletResponse response) throws ServletException,
IOException;
/**
* Handles the HTTP <code>GET</code> method.
*
* @param request
* servlet request
* @param response
* servlet response
*/
protected void doGet(HttpServletRequest request,
HttpServletResponse response) throws ServletException,
IOException {
processRequest(request, response);
}
protected void log(FacesContext facesContext, String message) {
facesContext.getExternalContext().log(message);
}
/**
* Handles the HTTP <code>POST</code> method.
*
* @param request
* servlet request
* @param response
* servlet response
*/
protected void doPost(HttpServletRequest request,
HttpServletResponse response) throws ServletException,
IOException {
processRequest(request, response);
}
protected FacesContext getFacesContext(HttpServletRequest request,
HttpServletResponse response) {
FacesContext facesContext = FacesContext.getCurrentInstance();
if (facesContext == null) {
FacesContextFactory contextFactory =
(FacesContextFactory) FactoryFinder
.getFactory(FactoryFinder.FACES_CONTEXT_FACTORY);
LifecycleFactory lifecycleFactory = (LifecycleFactory)
FactoryFinder
.getFactory(FactoryFinder.LIFECYCLE_FACTORY);
Lifecycle lifecycle = lifecycleFactory
.getLifecycle(LifecycleFactory.DEFAULT_LIFECYCLE);
facesContext =
contextFactory.getFacesContext(request.getSession()
.getServletContext(), request,
response, lifecycle);
// Set using our inner class
InnerFacesContext.setFacesContextAsCurrentInstance(facesContext);
// set a new viewRoot, otherwise context.getViewRoot
returns null
UIViewRoot view =
facesContext.getApplication().getViewHandler()
.createView(facesContext, "");
facesContext.setViewRoot(view);
}
return facesContext;
}
protected Application getApplication(FacesContext facesContext) {
return facesContext.getApplication();
}
protected Object getManagedBean(String beanName, FacesContext
facesContext) {
return getApplication(facesContext).getVariableResolver()
.resolveVariable(facesContext, beanName);
}
// You need an inner class to be able to call
// FacesContext.setCurrentInstance
// since it's a protected method
private abstract static class InnerFacesContext extends FacesContext {
protected static void setFacesContextAsCurrentInstance(
FacesContext facesContext) {
FacesContext.setCurrentInstance(facesContext);
}
}
}
