Examples with ErrorNavigationEvent com.vaadin.flow.router.ErrorNavigationEvent used on opensource projects

Example 1 with ErrorNavigationEvent

use of com.vaadin.flow.router.ErrorNavigationEvent in project flow by vaadin.

the class JavaScriptBootstrapUI method handleExceptionNavigation.

private boolean handleExceptionNavigation(Location location, Exception exception) {
    Optional<ErrorTargetEntry> maybeLookupResult = getInternals().getRouter().getErrorNavigationTarget(exception);
    if (maybeLookupResult.isPresent()) {
        ErrorTargetEntry lookupResult = maybeLookupResult.get();
        ErrorParameter<?> errorParameter = new ErrorParameter<>(lookupResult.getHandledExceptionType(), exception, exception.getMessage());
        ErrorStateRenderer errorStateRenderer = new ErrorStateRenderer(new NavigationStateBuilder(getInternals().getRouter()).withTarget(lookupResult.getNavigationTarget()).build());
        ErrorNavigationEvent errorNavigationEvent = new ErrorNavigationEvent(getInternals().getRouter(), location, this, NavigationTrigger.CLIENT_SIDE, errorParameter);
        errorStateRenderer.handle(errorNavigationEvent);
    } else {
        throw new RuntimeException(exception);
    }
    return isPostponed();
}

Example 2 with ErrorNavigationEvent

use of com.vaadin.flow.router.ErrorNavigationEvent in project flow by vaadin.

the class JavaScriptBootstrapUI method handleErrorNavigation.

private void handleErrorNavigation(Location location) {
    NavigationState errorNavigationState = getInternals().getRouter().resolveRouteNotFoundNavigationTarget().orElse(getDefaultNavigationError());
    ErrorStateRenderer errorStateRenderer = new ErrorStateRenderer(errorNavigationState);
    NotFoundException notFoundException = new NotFoundException("Couldn't find route for '" + location.getPath() + "'");
    ErrorParameter<NotFoundException> errorParameter = new ErrorParameter<>(NotFoundException.class, notFoundException);
    ErrorNavigationEvent errorNavigationEvent = new ErrorNavigationEvent(getInternals().getRouter(), location, this, NavigationTrigger.CLIENT_SIDE, errorParameter);
    errorStateRenderer.handle(errorNavigationEvent);
}

Example 3 with ErrorNavigationEvent

use of com.vaadin.flow.router.ErrorNavigationEvent in project flow by vaadin.

the class ErrorStateRendererTest method handle_openNPEErrorTarget_infiniteReroute_noStackOverflow_throws.

@Test(expected = ExceptionsTrace.class)
public void handle_openNPEErrorTarget_infiniteReroute_noStackOverflow_throws() {
    UI ui = configureMocks();
    NavigationState state = new NavigationStateBuilder(ui.getInternals().getRouter()).withTarget(InfiniteLoopErrorTarget.class).build();
    ErrorStateRenderer renderer = new ErrorStateRenderer(state);
    RouteConfiguration.forRegistry(ui.getInternals().getRouter().getRegistry()).setAnnotatedRoute(InfiniteLoopNPEView.class);
    ErrorParameter<Exception> parameter = new ErrorParameter<>(Exception.class, new NullPointerException());
    ErrorNavigationEvent event = new ErrorNavigationEvent(ui.getInternals().getRouter(), new Location("error"), ui, NavigationTrigger.CLIENT_SIDE, parameter);
    // event should route to ErrorTarget whose layout forwards to NPEView
    // which reroute to ErrorTarget and this is an infinite loop
    renderer.handle(event);
}

Example 4 with ErrorNavigationEvent

use of com.vaadin.flow.router.ErrorNavigationEvent in project flow by vaadin.

the class ErrorStateRendererTest method handle_errorViewLayoutForwardsToAView_viewIsNavigated.

@Test
public void handle_errorViewLayoutForwardsToAView_viewIsNavigated() {
    UI ui = configureMocks();
    NavigationState state = new NavigationStateBuilder(ui.getInternals().getRouter()).withTarget(HappyPathErrorTarget.class).build();
    ErrorStateRenderer renderer = new ErrorStateRenderer(state);
    RouteConfiguration.forRegistry(ui.getInternals().getRouter().getRegistry()).setAnnotatedRoute(HappyPathViewView.class);
    ErrorParameter<Exception> parameter = new ErrorParameter<>(Exception.class, new NullPointerException());
    ErrorNavigationEvent event = new ErrorNavigationEvent(ui.getInternals().getRouter(), new Location("error"), ui, NavigationTrigger.CLIENT_SIDE, parameter);
    Assert.assertEquals(200, renderer.handle(event));
    List<HasElement> chain = ui.getInternals().getActiveRouterTargetsChain();
    Assert.assertEquals(1, chain.size());
    Assert.assertEquals(HappyPathViewView.class, chain.get(0).getClass());
}

Example 5 with ErrorNavigationEvent

use of com.vaadin.flow.router.ErrorNavigationEvent in project flow by vaadin.

the class AbstractNavigationStateRenderer method getNavigationEvent.

private NavigationEvent getNavigationEvent(NavigationEvent event, BeforeEvent beforeNavigation) {
    if (beforeNavigation.hasErrorParameter()) {
        ErrorParameter<?> errorParameter = beforeNavigation.getErrorParameter();
        return new ErrorNavigationEvent(event.getSource(), event.getLocation(), event.getUI(), NavigationTrigger.PROGRAMMATIC, errorParameter);
    }
    String url;
    final boolean isForward = beforeNavigation.hasForwardTarget();
    if (isForward) {
        url = beforeNavigation.getForwardUrl();
    } else {
        url = beforeNavigation.getRerouteUrl();
    }
    if (url == null) {
        final String redirectType;
        final Class<? extends Component> redirectTarget;
        final RouteParameters redirectParameters;
        if (isForward) {
            redirectType = "forward";
            redirectTarget = beforeNavigation.getForwardTargetType();
            redirectParameters = beforeNavigation.getForwardTargetRouteParameters();
        } else {
            redirectType = "reroute";
            redirectTarget = beforeNavigation.getRerouteTargetType();
            redirectParameters = beforeNavigation.getRerouteTargetRouteParameters();
        }
        throw new IllegalStateException(String.format("Attempting to %s to unresolved location target %s with route parameters %s", redirectType, redirectTarget, redirectParameters));
    }
    Location location = new Location(url, event.getLocation().getQueryParameters());
    return new NavigationEvent(event.getSource(), location, event.getUI(), NavigationTrigger.PROGRAMMATIC, null, true);
}