Examples with BindingContext org.springframework.web.reactive.BindingContext used on opensource projects

Example 1 with BindingContext

use of org.springframework.web.reactive.BindingContext 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 BindingContext

use of org.springframework.web.reactive.BindingContext in project spring-framework by spring-projects.

the class RequestMappingHandlerAdapter method handle.

@Override
public Mono<HandlerResult> handle(ServerWebExchange exchange, Object handler) {
    Assert.notNull(handler, "Expected handler");
    HandlerMethod handlerMethod = (HandlerMethod) handler;
    BindingContext bindingContext = new InitBinderBindingContext(getWebBindingInitializer(), getBinderMethods(handlerMethod));
    return this.modelInitializer.initModel(bindingContext, getAttributeMethods(handlerMethod), exchange).then(() -> {
        Function<Throwable, Mono<HandlerResult>> exceptionHandler = ex -> handleException(exchange, handlerMethod, bindingContext, ex);
        InvocableHandlerMethod invocable = new InvocableHandlerMethod(handlerMethod);
        invocable.setArgumentResolvers(getArgumentResolvers());
        return invocable.invoke(exchange, bindingContext).doOnNext(result -> result.setExceptionHandler(exceptionHandler)).otherwise(exceptionHandler);
    });
}

Example 3 with BindingContext

use of org.springframework.web.reactive.BindingContext in project spring-framework by spring-projects.

the class ViewResolutionResultHandler method addBindingResult.

private void addBindingResult(BindingContext context, ServerWebExchange exchange) {
    Map<String, Object> model = context.getModel().asMap();
    model.keySet().stream().filter(name -> isBindingCandidate(name, model.get(name))).filter(name -> !model.containsKey(BindingResult.MODEL_KEY_PREFIX + name)).forEach(name -> {
        WebExchangeDataBinder binder = context.createDataBinder(exchange, model.get(name), name);
        model.put(BindingResult.MODEL_KEY_PREFIX + name, binder.getBindingResult());
    });
}

Example 4 with BindingContext

use of org.springframework.web.reactive.BindingContext in project spring-framework by spring-projects.

the class ModelInitializerTests method basic.

@SuppressWarnings("unchecked")
@Test
public void basic() throws Exception {
    TestController controller = new TestController();
    Validator validator = mock(Validator.class);
    controller.setValidator(validator);
    List<SyncInvocableHandlerMethod> binderMethods = getBinderMethods(controller);
    List<InvocableHandlerMethod> attributeMethods = getAttributeMethods(controller);
    WebBindingInitializer bindingInitializer = new ConfigurableWebBindingInitializer();
    BindingContext bindingContext = new InitBinderBindingContext(bindingInitializer, binderMethods);
    this.modelInitializer.initModel(bindingContext, attributeMethods, this.exchange).block(Duration.ofMillis(5000));
    WebExchangeDataBinder binder = bindingContext.createDataBinder(this.exchange, "name");
    assertEquals(Collections.singletonList(validator), binder.getValidators());
    Map<String, Object> model = bindingContext.getModel().asMap();
    assertEquals(5, model.size());
    Object value = model.get("bean");
    assertEquals("Bean", ((TestBean) value).getName());
    value = model.get("monoBean");
    assertEquals("Mono Bean", ((Mono<TestBean>) value).block(Duration.ofMillis(5000)).getName());
    value = model.get("singleBean");
    assertEquals("Single Bean", ((Single<TestBean>) value).toBlocking().value().getName());
    value = model.get("voidMethodBean");
    assertEquals("Void Method Bean", ((TestBean) value).getName());
    value = model.get("voidMonoMethodBean");
    assertEquals("Void Mono Method Bean", ((TestBean) value).getName());
}

Example 5 with BindingContext

use of org.springframework.web.reactive.BindingContext in project spring-framework by spring-projects.

the class PathVariableMapMethodArgumentResolverTests method resolveArgumentNoUriVars.

@Test
public void resolveArgumentNoUriVars() throws Exception {
    Mono<Object> mono = this.resolver.resolveArgument(this.paramMap, new BindingContext(), this.exchange);
    Object result = mono.block();
    assertEquals(Collections.emptyMap(), result);
}