Examples with WebExchangeBindException org.springframework.web.bind.support.WebExchangeBindException used on opensource projects

Example 1 with WebExchangeBindException

use of org.springframework.web.bind.support.WebExchangeBindException in project spring-framework by spring-projects.

the class ModelAttributeMethodArgumentResolver method resolveArgument.

@Override
public Mono<Object> resolveArgument(MethodParameter parameter, BindingContext context, ServerWebExchange exchange) {
    ResolvableType type = ResolvableType.forMethodParameter(parameter);
    ReactiveAdapter adapter = getAdapterRegistry().getAdapter(type.resolve());
    ResolvableType valueType = (adapter != null ? type.getGeneric(0) : type);
    Assert.state(adapter == null || !adapter.isMultiValue(), getClass().getSimpleName() + " doesn't support multi-value reactive type wrapper: " + parameter.getGenericParameterType());
    String name = getAttributeName(valueType, parameter);
    Mono<?> valueMono = getAttributeMono(name, valueType, context.getModel());
    Map<String, Object> model = context.getModel().asMap();
    MonoProcessor<BindingResult> bindingResultMono = MonoProcessor.create();
    model.put(BindingResult.MODEL_KEY_PREFIX + name, bindingResultMono);
    return valueMono.then(value -> {
        WebExchangeDataBinder binder = context.createDataBinder(exchange, value, name);
        return binder.bind(exchange).doOnError(bindingResultMono::onError).doOnSuccess(aVoid -> {
            validateIfApplicable(binder, parameter);
            BindingResult errors = binder.getBindingResult();
            model.put(BindingResult.MODEL_KEY_PREFIX + name, errors);
            model.put(name, value);
            bindingResultMono.onNext(errors);
        }).then(Mono.fromCallable(() -> {
            BindingResult errors = binder.getBindingResult();
            if (adapter != null) {
                return adapter.fromPublisher(errors.hasErrors() ? Mono.error(new WebExchangeBindException(parameter, errors)) : valueMono);
            } else {
                if (errors.hasErrors() && !hasErrorsArgument(parameter)) {
                    throw new WebExchangeBindException(parameter, errors);
                }
                return value;
            }
        }));
    });
}

Example 2 with WebExchangeBindException

use of org.springframework.web.bind.support.WebExchangeBindException in project spring-framework by spring-projects.

the class AbstractMessageReaderArgumentResolver method validate.

private void validate(Object target, Object[] validationHints, MethodParameter param, BindingContext binding, ServerWebExchange exchange) {
    String name = Conventions.getVariableNameForParameter(param);
    WebExchangeDataBinder binder = binding.createDataBinder(exchange, target, name);
    binder.validate(validationHints);
    if (binder.getBindingResult().hasErrors()) {
        throw new WebExchangeBindException(param, binder.getBindingResult());
    }
}

Example 3 with WebExchangeBindException

use of org.springframework.web.bind.support.WebExchangeBindException in project spring-framework by spring-projects.

the class ModelAttributeMethodArgumentResolverTests method testValidationError.

private void testValidationError(MethodParameter param, Function<Mono<?>, Mono<?>> valueMonoExtractor) throws URISyntaxException {
    ServerWebExchange exchange = postForm("age=invalid");
    Mono<?> mono = createResolver().resolveArgument(param, this.bindContext, exchange);
    mono = valueMonoExtractor.apply(mono);
    StepVerifier.create(mono).consumeErrorWith(ex -> {
        assertTrue(ex instanceof WebExchangeBindException);
        WebExchangeBindException bindException = (WebExchangeBindException) ex;
        assertEquals(1, bindException.getErrorCount());
        assertTrue(bindException.hasFieldErrors("age"));
    }).verify();
}