i wanted to ask if there is a way to enable Springs @ExceptionHandler capabilities with Joinfaces/Primefaces.
For now i'm able to handle global @ControllerAdvice beans, but not if the @ExceptionHandler is inside the @Controller class.
Are there any suggestions on how to solve this topic?
Here is the code i wrote so far
@Slf4j
public class SpringJsfExceptionHandler extends ExceptionHandlerWrapper {
public SpringJsfExceptionHandler(ExceptionHandler wrapped) {
super(wrapped);
}
@Override
public void handle() throws FacesException {
final Iterator<ExceptionQueuedEvent> queue = getUnhandledExceptionQueuedEvents().iterator();
while (queue.hasNext()) {
ExceptionQueuedEvent item = queue.next();
ExceptionQueuedEventContext exceptionQueuedEventContext = (ExceptionQueuedEventContext) item.getSource();
try {
Throwable throwable = exceptionQueuedEventContext.getException();
FacesContext context = FacesContext.getCurrentInstance();
handleException(context, (Exception) throwable);
} finally {
queue.remove();
}
}
}
private void handleException(FacesContext context, Exception throwable) {
WebApplicationContext applicationContext = resolveApplicationContext(context);
Collection<HandlerExceptionResolver> exceptionResolvers = listExceptionHandlerResolvers(applicationContext);
for (HandlerExceptionResolver resolver : exceptionResolvers) {
resolver.resolveException(request(context), response(context), null, throwable);
}
}
private Collection<HandlerExceptionResolver> listExceptionHandlerResolvers(WebApplicationContext context) {
return context.getBeansOfType(HandlerExceptionResolver.class).values();
}
private HttpServletRequest request(FacesContext context) {
return (HttpServletRequest) context.getExternalContext().getRequest();
}
private HttpServletResponse response(FacesContext context) {
return (HttpServletResponse) context.getExternalContext().getResponse();
}
private WebApplicationContext resolveApplicationContext(FacesContext context) {
HttpServletRequest request = (HttpServletRequest) context.getExternalContext().getRequest();
return WebApplicationContextUtils.findWebApplicationContext(request.getServletContext());
}
}
public class SpringJsfExceptionHandlerFactory extends ExceptionHandlerFactory {
public SpringJsfExceptionHandlerFactory() {
}
public SpringJsfExceptionHandlerFactory(ExceptionHandlerFactory wrapped) {
super(wrapped);
}
@Override
public ExceptionHandler getExceptionHandler() {
return new SpringJsfExceptionHandler(getWrapped() != null ? getWrapped().getExceptionHandler() : null);
}
}
This works:
@ControllerAdvice
public class GlobalExceptionHandler {
@ExceptionHandler
public void handleCalculationException(CalculationException e) {
FacesContext.getCurrentInstance().
addMessage(null, new FacesMessage(FacesMessage.SEVERITY_ERROR, e.getMessage(), e.getMessage()));
}
}
This does not work:
@Data
@Controller
@ViewScoped
public class CalculatorController implements Serializable {
@ExceptionHandler
public void handleCalculationException(CalculationException e) {
FacesContext.getCurrentInstance().
addMessage(null, new FacesMessage(FacesMessage.SEVERITY_ERROR, e.getMessage(), e.getMessage()));
}
[...]
Thanks in advance
