org.springframework.web.service.invoker.RequestBodyArgumentResolver Maven / Gradle / Ivy
/*
* Copyright 2002-2023 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.web.service.invoker;
import org.springframework.core.MethodParameter;
import org.springframework.core.ParameterizedTypeReference;
import org.springframework.core.ReactiveAdapter;
import org.springframework.core.ReactiveAdapterRegistry;
import org.springframework.lang.Nullable;
import org.springframework.util.Assert;
import org.springframework.util.ClassUtils;
import org.springframework.web.bind.annotation.RequestBody;
/**
* {@link HttpServiceArgumentResolver} for {@link RequestBody @RequestBody}
* annotated arguments.
*
* @author Rossen Stoyanchev
* @since 6.0
*/
public class RequestBodyArgumentResolver implements HttpServiceArgumentResolver {
private static final boolean REACTOR_PRESENT =
ClassUtils.isPresent("reactor.core.publisher.Mono", RequestBodyArgumentResolver.class.getClassLoader());
@Nullable
private final ReactiveAdapterRegistry reactiveAdapterRegistry;
/**
* Constructor with a {@link HttpExchangeAdapter}, for access to config settings.
* @since 6.1
*/
public RequestBodyArgumentResolver(HttpExchangeAdapter exchangeAdapter) {
if (REACTOR_PRESENT) {
this.reactiveAdapterRegistry =
(exchangeAdapter instanceof ReactorHttpExchangeAdapter reactorAdapter ?
reactorAdapter.getReactiveAdapterRegistry() :
ReactiveAdapterRegistry.getSharedInstance());
}
else {
this.reactiveAdapterRegistry = null;
}
}
@Override
public boolean resolve(
@Nullable Object argument, MethodParameter parameter, HttpRequestValues.Builder requestValues) {
RequestBody annot = parameter.getParameterAnnotation(RequestBody.class);
if (annot == null) {
return false;
}
if (argument != null) {
if (this.reactiveAdapterRegistry != null) {
ReactiveAdapter adapter = this.reactiveAdapterRegistry.getAdapter(parameter.getParameterType());
if (adapter != null) {
MethodParameter nestedParameter = parameter.nested();
String message = "Async type for @RequestBody should produce value(s)";
Assert.isTrue(!adapter.isNoValue(), message);
Assert.isTrue(nestedParameter.getNestedParameterType() != Void.class, message);
if (requestValues instanceof ReactiveHttpRequestValues.Builder reactiveRequestValues) {
reactiveRequestValues.setBodyPublisher(
adapter.toPublisher(argument), asParameterizedTypeRef(nestedParameter));
}
else {
throw new IllegalStateException(
"RequestBody with a reactive type is only supported with reactive client");
}
return true;
}
}
// Not a reactive type
requestValues.setBodyValue(argument);
}
return true;
}
private static ParameterizedTypeReference