org.springframework.http.client.reactive.JettyClientHttpRequest Maven / Gradle / Ivy
/*
* Copyright 2002-2020 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.HttpCookie;
import java.net.URI;
import java.util.Collection;
import java.util.function.Function;
import org.eclipse.jetty.client.api.Request;
import org.eclipse.jetty.reactive.client.ContentChunk;
import org.eclipse.jetty.reactive.client.ReactiveRequest;
import org.eclipse.jetty.util.Callback;
import org.reactivestreams.Publisher;
import reactor.core.Exceptions;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
import org.springframework.core.io.buffer.DataBuffer;
import org.springframework.core.io.buffer.DataBufferFactory;
import org.springframework.core.io.buffer.DataBufferUtils;
import org.springframework.core.io.buffer.PooledDataBuffer;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpMethod;
import org.springframework.http.MediaType;
import org.springframework.lang.Nullable;
/**
* {@link ClientHttpRequest} implementation for the Jetty ReactiveStreams HTTP client.
*
* @author Sebastien Deleuze
* @since 5.1
* @see Jetty ReactiveStreams HttpClient
*/
class JettyClientHttpRequest extends AbstractClientHttpRequest {
private final Request jettyRequest;
private final DataBufferFactory bufferFactory;
@Nullable
private ReactiveRequest reactiveRequest;
public JettyClientHttpRequest(Request jettyRequest, DataBufferFactory bufferFactory) {
this.jettyRequest = jettyRequest;
this.bufferFactory = bufferFactory;
}
@Override
public HttpMethod getMethod() {
return HttpMethod.valueOf(this.jettyRequest.getMethod());
}
@Override
public URI getURI() {
return this.jettyRequest.getURI();
}
@Override
public Mono setComplete() {
return doCommit(this::completes);
}
@Override
public DataBufferFactory bufferFactory() {
return this.bufferFactory;
}
@Override
public Mono writeWith(Publisher body) {
Flux chunks = Flux.from(body).map(this::toContentChunk);
ReactiveRequest.Content content = ReactiveRequest.Content.fromPublisher(chunks, getContentType());
this.reactiveRequest = ReactiveRequest.newBuilder(this.jettyRequest).content(content).build();
return doCommit(this::completes);
}
@Override
public Mono writeAndFlushWith(Publisher> body) {
Flux chunks = Flux.from(body)
.flatMap(Function.identity())
.doOnDiscard(PooledDataBuffer.class, DataBufferUtils::release)
.map(this::toContentChunk);
ReactiveRequest.Content content = ReactiveRequest.Content.fromPublisher(chunks, getContentType());
this.reactiveRequest = ReactiveRequest.newBuilder(this.jettyRequest).content(content).build();
return doCommit(this::completes);
}
private String getContentType() {
MediaType contentType = getHeaders().getContentType();
return contentType != null ? contentType.toString() : MediaType.APPLICATION_OCTET_STREAM_VALUE;
}
private Mono completes() {
return Mono.empty();
}
private ContentChunk toContentChunk(DataBuffer buffer) {
return new ContentChunk(buffer.asByteBuffer(), new Callback() {
@Override
public void succeeded() {
DataBufferUtils.release(buffer);
}
@Override
public void failed(Throwable x) {
DataBufferUtils.release(buffer);
throw Exceptions.propagate(x);
}
});
}
@Override
protected void applyCookies() {
getCookies().values().stream().flatMap(Collection::stream)
.map(cookie -> new HttpCookie(cookie.getName(), cookie.getValue()))
.forEach(this.jettyRequest::cookie);
}
@Override
protected void applyHeaders() {
HttpHeaders headers = getHeaders();
headers.forEach((key, value) -> value.forEach(v -> this.jettyRequest.header(key, v)));
if (!headers.containsKey(HttpHeaders.ACCEPT)) {
this.jettyRequest.header(HttpHeaders.ACCEPT, "*/*");
}
}
ReactiveRequest getReactiveRequest() {
if (this.reactiveRequest == null) {
this.reactiveRequest = ReactiveRequest.newBuilder(this.jettyRequest).build();
}
return this.reactiveRequest;
}
}