spring BufferingClientHttpRequestFactory 源码
spring BufferingClientHttpRequestFactory 代码
文件路径：/spring-web/src/main/java/org/springframework/http/client/BufferingClientHttpRequestFactory.java
/*
* Copyright 2002-2018 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.http.client;
import java.io.IOException;
import java.net.URI;
import org.springframework.http.HttpMethod;
/**
* Wrapper for a {@link ClientHttpRequestFactory} that buffers
* all outgoing and incoming streams in memory.
*
* <p>Using this wrapper allows for multiple reads of the
* {@linkplain ClientHttpResponse#getBody() response body}.
*
* @author Arjen Poutsma
* @since 3.1
*/
public class BufferingClientHttpRequestFactory extends AbstractClientHttpRequestFactoryWrapper {
/**
* Create a buffering wrapper for the given {@link ClientHttpRequestFactory}.
* @param requestFactory the target request factory to wrap
*/
public BufferingClientHttpRequestFactory(ClientHttpRequestFactory requestFactory) {
super(requestFactory);
}
@Override
protected ClientHttpRequest createRequest(URI uri, HttpMethod httpMethod, ClientHttpRequestFactory requestFactory)
throws IOException {
ClientHttpRequest request = requestFactory.createRequest(uri, httpMethod);
if (shouldBuffer(uri, httpMethod)) {
return new BufferingClientHttpRequestWrapper(request);
}
else {
return request;
}
}
/**
* Indicates whether the request/response exchange for the given URI and method
* should be buffered in memory.
* <p>The default implementation returns {@code true} for all URIs and methods.
* Subclasses can override this method to change this behavior.
* @param uri the URI
* @param httpMethod the method
* @return {@code true} if the exchange should be buffered; {@code false} otherwise
*/
protected boolean shouldBuffer(URI uri, HttpMethod httpMethod) {
return true;
}
}
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