Hello I'm trying to find a way to catch and redirect back to the login
(restore a converstion or start a new one)
in web.xml I have...
<session-config> <session-timeout>1</session-timeout> </session-config>
and
<context-param> <param-name>org.apache.myfaces.ERROR_HANDLER</param-name>
<param-value>org.mcgill.phire.jsf.exception.MyExceptionHandler</param-value>
</context-param>
so this will throw the
org.jboss.weld.context.NonexistentConversationException: WELD-000321 No
conversation found to restore for id 1 error
I try to handle it...
in faces-config I have...
<factory>
<exception-handler-factory>org.mcgill.phire.jsf.exception.MyExceptionHandlerFactory</exception-handler-factory>
</factory> public class MyExceptionHandlerFactory extends
ExceptionHandlerFactory { private ExceptionHandlerFactory parent; // this
injection handles jsf public
MyExceptionHandlerFactory(ExceptionHandlerFactory parent) { this.parent =
parent; } //create your own ExceptionHandler @Override public
ExceptionHandler getExceptionHandler() { ExceptionHandler result = new
MyExceptionHandler(parent.getExceptionHandler()); return result; } }
-------------------------------------------------------- @HandlesExceptions
public class MyExceptionHandler extends ExceptionHandlerWrapper { //private
static Log log = LogFactory.getLog(MyExceptionHandler.class); private static
final Logger LOG = LoggerFactory.getLogger(MyExceptionHandler.class); private
ExceptionHandler wrapped; public MyExceptionHandler(ExceptionHandler wrapped)
{ this.wrapped = wrapped; } @Override public ExceptionHandler getWrapped() {
return wrapped; } @Override public void handle() throws FacesException {
//Iterate over all unhandeled exceptions Iterator i =
getUnhandledExceptionQueuedEvents().iterator(); while (i.hasNext()) {
ExceptionQueuedEvent event = (ExceptionQueuedEvent)i.next();
ExceptionQueuedEventContext context =
(ExceptionQueuedEventContext)event.getSource(); //obtain throwable object
Throwable t = context.getException(); //here you do what ever you want with
exception try{ //log error LOG.error("Serious error happened!", t);
ExceptionHandlerUtil.handleNavigationWithError("m300123"); //redirect to
error view etc.... }finally{ //after exception is handeled, remove it from
queue i.remove(); } } //let the parent handle the rest getWrapped().handle();
} } ---------------------------------------------------- TRYING EVERYTHING
HERE BUT ALWAYS AN UNHANDLED CONVERSATION @HandlesExceptions public class
ExceptionHandlerUtil { private static final Logger LOG =
LoggerFactory.getLogger(MyExceptionHandler.class); private static BeanManager
mgr = null; private ExceptionHandlerUtil() { //no-op } protected static void
handleNavigationWithError(String errorNumber) {
handleNavigationWithError(errorNumber, null, null); } private static
BeanManager getBeanManager() { if (mgr == null) { ServletContext ctx =
(ServletContext)
FacesContext.getCurrentInstance().getExternalContext().getContext(); mgr =
(BeanManager) ctx.getAttribute(BeanManager.class.getName()); } return mgr; }
protected static void handleNavigationWithError(String errorNumber, String
parameterName, Object parameterValue) { FacesContext fc =
FacesContext.getCurrentInstance(); //check for conversation context - this
doesn't work... /* try { BeanManager bm = getBeanManager();
//(BeanManager)new InitialContext().lookup("java:comp/BeanManager"); if
(bm.isScope(ConversationScoped.class)) { Set<Bean<?>> conversations =
bm.getBeans(Conversation.class); //for (javax.enterprise.inject.spi.Bean b :
conversations) { // for(org.jboss.weld.bean.builtin.ConversationBean b :
conversations){ // Conversation c = (Conversation) b; // if
(!c.isTransient()) { // c.end(); // } // } } } catch (Exception ex) { //no-op
}*/ // ConversationContext conversationContext =
fc.getExternalContext().instance() //
.deploymentManager().instance().select(Context.class) //
.select(HttpConversationContext.class).get(); // //
conversationContext.activate(null); Map<String, Object> requestMap =
fc.getExternalContext().getRequestMap(); NavigationHandler nav =
fc.getApplication().getNavigationHandler(); if (parameterName != null) {
requestMap.put(parameterName, parameterValue); } fc.addMessage(null, new
FacesMessage(FacesMessage.SEVERITY_ERROR, errorNumber, null)); try{
nav.handleNavigation(fc, null, "go_to_login"); fc.renderResponse(); } catch
(Exception e) { // FacesContext ctx = FacesContext.getCurrentInstance(); //
ExceptionQueuedEventContext eventContext = new
ExceptionQueuedEventContext(ctx, e); //
eventContext.getAttributes().put("key",
"org.jboss.weld.context.NonexistentConversationException"); //
ctx.getApplication().publishEvent(ctx, ExceptionQueuedEvent.class,
eventContext); /* HttpServletResponse response =
(HttpServletResponse)fc.getExternalContext().getResponse();
response.addHeader("Pragma", "no-cache"); response.addHeader("Cache-Control",
"no-cache"); // Stronger according to blog comment below that references HTTP
spec response.addHeader("Cache-Control", "no-store");
response.addHeader("Cache-Control", "must-revalidate"); // some date in the
past response.addHeader("Expires", "Mon, 8 Aug 2006 10:00:00 GMT"); try{
response.sendRedirect("/login/login.xhtml"); //jsf?faces-redirect=true"); }
catch(Exception ex){ LOG.error(e.getMessage()); }*/ } } }
Surely there must be something simple to catch/handle a session timeout or
lost conversation?
I am using GlassFish 3.1.1 all updated...
the session timeout is intentional but I want to redirect back to the
login/landing...
Any help/suggestions greatly appreciated..
Best Regards,
JOHN.
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