spring ReactorClientHttpRequest 源码

spring ReactorClientHttpRequest 代码

文件路径：/spring-web/src/main/java/org/springframework/http/client/reactive/ReactorClientHttpRequest.java

/*
 * Copyright 2002-2022 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.reactive;

import java.net.URI;
import java.nio.file.Path;
import java.util.Collection;

import io.netty.buffer.ByteBuf;
import io.netty.handler.codec.http.cookie.DefaultCookie;
import org.reactivestreams.Publisher;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
import reactor.netty.NettyOutbound;
import reactor.netty.http.client.HttpClientRequest;

import org.springframework.core.io.buffer.DataBuffer;
import org.springframework.core.io.buffer.DataBufferFactory;
import org.springframework.core.io.buffer.NettyDataBufferFactory;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpMethod;
import org.springframework.http.ZeroCopyHttpOutputMessage;

/**
 * {@link ClientHttpRequest} implementation for the Reactor-Netty HTTP client.
 *
 * @author Brian Clozel
 * @author Rossen Stoyanchev
 * @since 5.0
 * @see reactor.netty.http.client.HttpClient
 */
class ReactorClientHttpRequest extends AbstractClientHttpRequest implements ZeroCopyHttpOutputMessage {

	private final HttpMethod httpMethod;

	private final URI uri;

	private final HttpClientRequest request;

	private final NettyOutbound outbound;

	private final NettyDataBufferFactory bufferFactory;


	public ReactorClientHttpRequest(HttpMethod method, URI uri, HttpClientRequest request, NettyOutbound outbound) {
		this.httpMethod = method;
		this.uri = uri;
		this.request = request;
		this.outbound = outbound;
		this.bufferFactory = new NettyDataBufferFactory(outbound.alloc());
	}


	@Override
	public HttpMethod getMethod() {
		return this.httpMethod;
	}

	@Override
	public URI getURI() {
		return this.uri;
	}

	@Override
	public DataBufferFactory bufferFactory() {
		return this.bufferFactory;
	}

	@Override
	@SuppressWarnings("unchecked")
	public <T> T getNativeRequest() {
		return (T) this.request;
	}

	@Override
	public Mono<Void> writeWith(Publisher<? extends DataBuffer> body) {
		return doCommit(() -> {
			// Send as Mono if possible as an optimization hint to Reactor Netty
			if (body instanceof Mono) {
				Mono<ByteBuf> byteBufMono = Mono.from(body).map(NettyDataBufferFactory::toByteBuf);
				return this.outbound.send(byteBufMono).then();

			}
			else {
				Flux<ByteBuf> byteBufFlux = Flux.from(body).map(NettyDataBufferFactory::toByteBuf);
				return this.outbound.send(byteBufFlux).then();
			}
		});
	}

	@Override
	public Mono<Void> writeAndFlushWith(Publisher<? extends Publisher<? extends DataBuffer>> body) {
		Publisher<Publisher<ByteBuf>> byteBufs = Flux.from(body).map(ReactorClientHttpRequest::toByteBufs);
		return doCommit(() -> this.outbound.sendGroups(byteBufs).then());
	}

	private static Publisher<ByteBuf> toByteBufs(Publisher<? extends DataBuffer> dataBuffers) {
		return Flux.from(dataBuffers).map(NettyDataBufferFactory::toByteBuf);
	}

	@Override
	public Mono<Void> writeWith(Path file, long position, long count) {
		return doCommit(() -> this.outbound.sendFile(file, position, count).then());
	}

	@Override
	public Mono<Void> setComplete() {
		return doCommit(this.outbound::then);
	}

	@Override
	protected void applyHeaders() {
		getHeaders().forEach((key, value) -> this.request.requestHeaders().set(key, value));
	}

	@Override
	protected void applyCookies() {
		getCookies().values().stream().flatMap(Collection::stream)
				.map(cookie -> new DefaultCookie(cookie.getName(), cookie.getValue()))
				.forEach(this.request::addCookie);
	}

	@Override
	protected HttpHeaders initReadOnlyHeaders() {
		return HttpHeaders.readOnlyHttpHeaders(new NettyHeadersAdapter(this.request.requestHeaders()));
	}

}

相关信息

spring 源码目录

相关文章

spring AbstractClientHttpRequest 源码

spring ClientHttpConnector 源码

spring ClientHttpRequest 源码

spring ClientHttpRequestDecorator 源码

spring ClientHttpResponse 源码

spring ClientHttpResponseDecorator 源码

spring HttpComponentsClientHttpConnector 源码

spring HttpComponentsClientHttpRequest 源码

spring HttpComponentsClientHttpResponse 源码

spring HttpComponentsHeadersAdapter 源码