/*
* Copyright 2002-2016 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
*
* http://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.server.reactive;
import org.junit.Before;
import org.junit.Test;
import static org.springframework.web.client.reactive.ClientWebRequestBuilders.get;
import static org.springframework.web.client.reactive.ResponseExtractors.bodyStream;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
import reactor.core.test.TestSubscriber;
import org.springframework.core.io.buffer.DataBuffer;
import org.springframework.core.io.buffer.FlushingDataBuffer;
import org.springframework.http.client.reactive.ReactorClientHttpConnector;
import org.springframework.web.client.reactive.WebClient;
/**
* @author Sebastien Deleuze
*/
public class FlushingIntegrationTests extends AbstractHttpHandlerIntegrationTests {
private WebClient webClient;
@Before
public void setup() throws Exception {
super.setup();
this.webClient = new WebClient(new ReactorClientHttpConnector());
}
@Test
public void testFlushing() throws Exception {
Mono<String> result = this.webClient
.perform(get("http://localhost:" + port))
.extract(bodyStream(String.class))
.takeUntil(s -> {
return s.endsWith("data1");
})
.reduce((s1, s2) -> s1 + s2);
TestSubscriber
.subscribe(result)
.await()
.assertValues("data0data1");
}
@Override
protected HttpHandler createHttpHandler() {
return new FlushingHandler();
}
// Handler that never completes designed to test if flushing is perform correctly when
// a FlushingDataBuffer is written
private static class FlushingHandler implements HttpHandler {
@Override
public Mono<Void> handle(ServerHttpRequest request, ServerHttpResponse response) {
Flux<DataBuffer> responseBody = Flux
.intervalMillis(50)
.map(l -> {
byte[] data = ("data" + l).getBytes();
DataBuffer buffer = response.bufferFactory().allocateBuffer(data.length);
buffer.write(data);
return buffer;
})
.take(2)
.concatWith(Mono.just(FlushingDataBuffer.INSTANCE))
.concatWith(Flux.never());
return response.writeWith(responseBody);
}
}
}