Eu tenho uma webapp que migrei terca de JSF1.2 para JSF2.0.
“Quase” tudo funcionou. Tenho um phaseListener que uso para controlar se a sessao do usuario expirou, de forma a envia-lo para a pagina de login.
No faces-config.xml esta assim:
<lifecycle>
<phase-listener>util.LoginFilter</phase-listener>
</lifecycle>
No codigo Java esta assim:
public class LoginFilter implements PhaseListener {
private static final long serialVersionUID = 1L;
@Override
public void beforePhase(PhaseEvent event) {
FacesContext fc = event.getFacesContext();
ExternalContext ec = fc.getExternalContext();
HttpSession session = (HttpSession) ec.getSession(false);
if (session == null) {
try {
String url = ((ServletContext)ec.getContext()).getContextPath();
ec.redirect(url + "/index.jsp");
} catch (Exception e) {
e.printStackTrace();
}
}
}
@Override
public void afterPhase(PhaseEvent event) {
FacesContext fc = event.getFacesContext();
try {
UIViewRoot view = fc.getViewRoot();
if (view == null) {
NavigationHandler nh = fc.getApplication().getNavigationHandler();
//nh.handleNavigation(fc, "*", "logout");
nh.handleNavigation(fc, null, "logout"); // DA ERRO NESTA LINHA DE NULL POINTER CONFORME EXCEPTION ABAIXO
}
else {
String currentPage = view.getViewId();
boolean isLoginPage = currentPage.indexOf("login") > -1;
HttpSession session = (HttpSession) fc.getExternalContext().getSession(false);
Usuario usuario = (Usuario) session.getAttribute("usuario");
if (!isLoginPage && (usuario == null || usuario.getNome() == null)) {
NavigationHandler nh = fc.getApplication().getNavigationHandler();
nh.handleNavigation(fc, null, "logout");
}
}
} catch (Exception e) {
e.printStackTrace();
NavigationHandler nh = fc.getApplication().getNavigationHandler();
nh.handleNavigation(fc, null, "logout");
}
}
@Override
public PhaseId getPhaseId() {
return PhaseId.RESTORE_VIEW;
}
}
Mas quando eu testo com um usuario que expirou a sessao, da a seguinte excecao:
SEVERE: java.lang.NullPointerException
at com.sun.faces.application.NavigationHandlerImpl.updateRenderTargets(NavigationHandlerImpl.java:240)
at com.sun.faces.application.NavigationHandlerImpl.handleNavigation(NavigationHandlerImpl.java:197)
at util.LoginFilter.afterPhase(LoginFilter.java:40)
at com.sun.faces.lifecycle.Phase.handleAfterPhase(Phase.java:189)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:107)
at com.sun.faces.lifecycle.RestoreViewPhase.doPhase(RestoreViewPhase.java:110)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:312)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1523)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:343)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:215)
at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:206)
at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:290)
at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:388)
at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:515)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:215)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:277)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:188)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:641)
at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:97)
at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:85)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:185)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:332)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:233)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:165)
at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:791)
at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:693)
at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:954)
at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:170)
at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:135)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:102)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:88)
at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:76)
at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:53)
at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:57)
at com.sun.grizzly.ContextTask.run(ContextTask.java:69)
at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:330)
at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:309)
at java.lang.Thread.run(Thread.java:619)
