org.jboss.aerogear.controller.router.decorators
Class ErrorHandler

java.lang.Object
  org.jboss.aerogear.controller.router.decorators.ErrorHandler

All Implemented Interfaces:

RouteProcessor

@Decorator
public class ErrorHandler
extends Object
implements RouteProcessor

ErrorHandler is a CDI Decorator that decorates a RouteProcessor.

By wrapping the call to RouteProcessor.process(RouteContext) with a try catch block, this class will handle any exception thrown and either forward to a the appropriate error route configured, or if no error route exists, forward to the default error view.

Field Summary

private javax.enterprise.inject.spi.BeanManager	beanManager
private ControllerFactory	controllerFactory
private RouteProcessor	delegate
private ViewResolver	errorViewResolver

Constructor Summary

ErrorHandler(RouteProcessor delegate, ViewResolver viewResolver, ControllerFactory controllerFactory, javax.enterprise.inject.spi.BeanManager beanManager)

Method Summary

private void	forwardErrorToView(Route errorRoute, Throwable rootCause, javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)
private Object	getController(Route route)
private void	invokeErrorRoute(Route errorRoute, Throwable t)
void	process(RouteContext routeContext) Handles the actual invocation of the target or the passed-in Route.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

delegate

private final RouteProcessor delegate

controllerFactory

private final ControllerFactory controllerFactory

beanManager

private final javax.enterprise.inject.spi.BeanManager beanManager

errorViewResolver

private final ViewResolver errorViewResolver

Constructor Detail

ErrorHandler

@Inject
public ErrorHandler(@Delegate
                           RouteProcessor delegate,
                           ViewResolver viewResolver,
                           ControllerFactory controllerFactory,
                           javax.enterprise.inject.spi.BeanManager beanManager)

Method Detail

process

public void process(RouteContext routeContext)
             throws Exception

Description copied from interface: RouteProcessor

Handles the actual invocation of the target or the passed-in Route.

Specified by:

process in interface RouteProcessor

Parameters:

routeContext - the RouteContext for the current request.

Throws:

Exception - if processing of the route causes an exception.

invokeErrorRoute

private void invokeErrorRoute(Route errorRoute,
                              Throwable t)
                       throws javax.servlet.ServletException

Throws:

javax.servlet.ServletException

forwardErrorToView

private void forwardErrorToView(Route errorRoute,
                                Throwable rootCause,
                                javax.servlet.http.HttpServletRequest request,
                                javax.servlet.http.HttpServletResponse response)
                         throws javax.servlet.ServletException

Throws:

javax.servlet.ServletException

getController

private Object getController(Route route)