TestHttp1Reactive.java

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package org.apache.hc.client5.testing.async;

import static java.util.concurrent.TimeUnit.MILLISECONDS;
import static org.hamcrest.MatcherAssert.assertThat;

import java.nio.ByteBuffer;

import org.apache.hc.client5.http.async.methods.SimpleHttpRequest;
import org.apache.hc.client5.http.async.methods.SimpleRequestBuilder;
import org.apache.hc.client5.http.impl.async.CloseableHttpAsyncClient;
import org.apache.hc.client5.http.impl.async.HttpAsyncClients;
import org.apache.hc.client5.http.impl.nio.PoolingAsyncClientConnectionManager;
import org.apache.hc.client5.testing.extension.async.ClientProtocolLevel;
import org.apache.hc.client5.testing.extension.async.ServerProtocolLevel;
import org.apache.hc.client5.testing.extension.async.TestAsyncClient;
import org.apache.hc.core5.http.HeaderElements;
import org.apache.hc.core5.http.HttpHeaders;
import org.apache.hc.core5.http.HttpHost;
import org.apache.hc.core5.http.HttpResponse;
import org.apache.hc.core5.http.Message;
import org.apache.hc.core5.http.URIScheme;
import org.apache.hc.core5.http.nio.AsyncRequestProducer;
import org.apache.hc.core5.http.nio.support.AsyncRequestBuilder;
import org.apache.hc.core5.reactive.ReactiveResponseConsumer;
import org.apache.hc.core5.reactive.ReactiveServerExchangeHandler;
import org.apache.hc.core5.testing.reactive.ReactiveRandomProcessor;
import org.hamcrest.CoreMatchers;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.Timeout;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.ValueSource;
import org.reactivestreams.Publisher;

abstract class TestHttp1Reactive extends AbstractHttpReactiveFundamentalsTest {

    public TestHttp1Reactive(final URIScheme scheme) {
        super(scheme, ClientProtocolLevel.STANDARD, ServerProtocolLevel.STANDARD);
    }

    @ParameterizedTest(name = "{displayName}; concurrent connections: {0}")
    @ValueSource(ints = {5, 1, 20})
    @Timeout(value = 60_000, unit = MILLISECONDS)
    public void testSequentialGetRequestsCloseConnection(final int concurrentConns) throws Exception {
        configureServer(bootstrap -> bootstrap.register("/random/*", () ->
                new ReactiveServerExchangeHandler(new ReactiveRandomProcessor())));
        final HttpHost target = startServer();

        final TestAsyncClient client = startClient();

        final PoolingAsyncClientConnectionManager connManager = client.getConnectionManager();
        connManager.setDefaultMaxPerRoute(concurrentConns);
        connManager.setMaxTotal(100);

        for (int i = 0; i < 3; i++) {
            final SimpleHttpRequest get = SimpleRequestBuilder.get()
                    .setHttpHost(target)
                    .setPath("/random/2048")
                    .build();
            get.setHeader(HttpHeaders.CONNECTION, HeaderElements.CLOSE);
            final AsyncRequestProducer request = AsyncRequestBuilder.get(target + "/random/2048").build();
            final ReactiveResponseConsumer consumer = new ReactiveResponseConsumer();

            client.execute(request, consumer, null);

            final Message<HttpResponse, Publisher<ByteBuffer>> response = consumer.getResponseFuture().get();
            assertThat(response, CoreMatchers.notNullValue());
            assertThat(response.getHead().getCode(), CoreMatchers.equalTo(200));
            final String body = publisherToString(response.getBody());
            assertThat(body, CoreMatchers.notNullValue());
            assertThat(body.length(), CoreMatchers.equalTo(2048));
        }
    }

    @Test
    @Timeout(value = 60_000, unit = MILLISECONDS)
    void testSharedPool() throws Exception {
        configureServer(bootstrap -> bootstrap.register("/random/*", () ->
                new ReactiveServerExchangeHandler(new ReactiveRandomProcessor())));
        final HttpHost target = startServer();

        final TestAsyncClient client = startClient();

        final PoolingAsyncClientConnectionManager connManager = client.getConnectionManager();

        final AsyncRequestProducer request1 = AsyncRequestBuilder.get(target + "/random/2048").build();
        final ReactiveResponseConsumer consumer1 = new ReactiveResponseConsumer();

        client.execute(request1, consumer1, null);

        final Message<HttpResponse, Publisher<ByteBuffer>> response1 = consumer1.getResponseFuture().get();
        assertThat(response1, CoreMatchers.notNullValue());
        assertThat(response1.getHead(), CoreMatchers.notNullValue());
        assertThat(response1.getHead().getCode(), CoreMatchers.equalTo(200));
        final String body1 = publisherToString(response1.getBody());
        assertThat(body1, CoreMatchers.notNullValue());
        assertThat(body1.length(), CoreMatchers.equalTo(2048));


        try (final CloseableHttpAsyncClient httpclient2 = HttpAsyncClients.custom()
                .setConnectionManager(connManager)
                .setConnectionManagerShared(true)
                .build()) {
            httpclient2.start();
            final AsyncRequestProducer request2 = AsyncRequestBuilder.get(target + "/random/2048").build();
            final ReactiveResponseConsumer consumer2 = new ReactiveResponseConsumer();

            httpclient2.execute(request2, consumer2, null);

            final Message<HttpResponse, Publisher<ByteBuffer>> response2 = consumer2.getResponseFuture().get();
            assertThat(response2, CoreMatchers.notNullValue());
            assertThat(response2.getHead().getCode(), CoreMatchers.equalTo(200));
            final String body2 = publisherToString(response2.getBody());
            assertThat(body2, CoreMatchers.notNullValue());
            assertThat(body2.length(), CoreMatchers.equalTo(2048));
        }

        final AsyncRequestProducer request3 = AsyncRequestBuilder.get(target + "/random/2048").build();
        final ReactiveResponseConsumer consumer3 = new ReactiveResponseConsumer();

        client.execute(request3, consumer3, null);

        final Message<HttpResponse, Publisher<ByteBuffer>> response3 = consumer3.getResponseFuture().get();
        assertThat(response3, CoreMatchers.notNullValue());
        assertThat(response3.getHead().getCode(), CoreMatchers.equalTo(200));
        final String body3 = publisherToString(response3.getBody());
        assertThat(body3, CoreMatchers.notNullValue());
        assertThat(body3.length(), CoreMatchers.equalTo(2048));
    }

}