spring ExchangeFunction 源码
spring ExchangeFunction 代码
文件路径：/spring-webflux/src/main/java/org/springframework/web/reactive/function/client/ExchangeFunction.java
/*
* Copyright 2002-2021 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.reactive.function.client;
import reactor.core.publisher.Mono;
/**
* Represents a function that exchanges a {@linkplain ClientRequest request} for a (delayed)
* {@linkplain ClientResponse}. Can be used as an alternative to {@link WebClient}.
*
* <p>For example:
* <pre class="code">
* ExchangeFunction exchangeFunction =
* ExchangeFunctions.create(new ReactorClientHttpConnector());
*
* URI url = URI.create("https://example.com/resource");
* ClientRequest request = ClientRequest.create(HttpMethod.GET, url).build();
*
* Mono<String> bodyMono = exchangeFunction
* .exchange(request)
* .flatMap(response -> response.bodyToMono(String.class));
* </pre>
*
* @author Arjen Poutsma
* @since 5.0
*/
@FunctionalInterface
public interface ExchangeFunction {
/**
* Exchange the given request for a {@link ClientResponse} promise.
*
* <p><strong>Note:</strong> When calling this method from an
* {@link ExchangeFilterFunction} that handles the response in some way,
* extra care must be taken to always consume its content or otherwise
* propagate it downstream for further handling, for example by the
* {@link WebClient}. Please, see the reference documentation for more
* details on this.
* @param request the request to exchange
* @return the delayed response
*/
Mono<ClientResponse> exchange(ClientRequest request);
/**
* Filter the exchange function with the given {@code ExchangeFilterFunction},
* resulting in a filtered {@code ExchangeFunction}.
* @param filter the filter to apply to this exchange
* @return the filtered exchange
* @see ExchangeFilterFunction#apply(ExchangeFunction)
*/
default ExchangeFunction filter(ExchangeFilterFunction filter) {
return filter.apply(this);
}
}
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spring DefaultClientRequestBuilder 源码
spring DefaultClientResponse 源码
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