Added examples of full-duplex HTTP/1.1 and HTTP/2 message exchanges
This commit is contained in:
Oleg Kalnichevski
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/*
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* ====================================================================
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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* ====================================================================
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*
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* This software consists of voluntary contributions made by many
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* individuals on behalf of the Apache Software Foundation. For more
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* information on the Apache Software Foundation, please see
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* <http://www.apache.org/>.
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*
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*/
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package org.apache.hc.client5.http.examples;
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import java.io.IOException;
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import java.net.URI;
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import java.nio.ByteBuffer;
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import java.util.List;
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import java.util.concurrent.CountDownLatch;
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import java.util.concurrent.TimeUnit;
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import org.apache.hc.client5.http.impl.async.HttpAsyncClients;
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import org.apache.hc.client5.http.impl.async.MinimalHttpAsyncClient;
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import org.apache.hc.core5.http.ContentType;
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import org.apache.hc.core5.http.EntityDetails;
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import org.apache.hc.core5.http.Header;
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import org.apache.hc.core5.http.HttpException;
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import org.apache.hc.core5.http.HttpResponse;
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import org.apache.hc.core5.http.config.H1Config;
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import org.apache.hc.core5.http.nio.AsyncClientExchangeHandler;
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import org.apache.hc.core5.http.nio.BasicRequestProducer;
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import org.apache.hc.core5.http.nio.BasicResponseConsumer;
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import org.apache.hc.core5.http.nio.CapacityChannel;
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import org.apache.hc.core5.http.nio.DataStreamChannel;
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import org.apache.hc.core5.http.nio.RequestChannel;
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import org.apache.hc.core5.http.nio.entity.BasicAsyncEntityProducer;
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import org.apache.hc.core5.http.nio.entity.StringAsyncEntityConsumer;
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import org.apache.hc.core5.http2.HttpVersionPolicy;
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import org.apache.hc.core5.http2.config.H2Config;
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import org.apache.hc.core5.io.ShutdownType;
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import org.apache.hc.core5.reactor.IOReactorConfig;
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import org.apache.hc.core5.util.Timeout;
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/**
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* This example demonstrates a full-duplex, streaming HTTP/1.1 message exchange.
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*/
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public class AsyncClientFullDuplexExchange {
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public static void main(final String[] args) throws Exception {
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final IOReactorConfig ioReactorConfig = IOReactorConfig.custom()
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.setSoTimeout(Timeout.ofSeconds(5))
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.build();
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final MinimalHttpAsyncClient client = HttpAsyncClients.createMinimal(
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HttpVersionPolicy.NEGOTIATE,
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H2Config.DEFAULT,
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H1Config.DEFAULT,
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ioReactorConfig);
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client.start();
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final URI requestUri = new URI("http://httpbin.org/post");
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final BasicRequestProducer requestProducer = new BasicRequestProducer(
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"POST", requestUri, new BasicAsyncEntityProducer("stuff", ContentType.TEXT_PLAIN));
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final BasicResponseConsumer<String> responseConsumer = new BasicResponseConsumer<>(
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new StringAsyncEntityConsumer());
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final CountDownLatch latch = new CountDownLatch(1);
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client.execute(new AsyncClientExchangeHandler() {
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@Override
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public void releaseResources() {
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requestProducer.releaseResources();
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responseConsumer.releaseResources();
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latch.countDown();
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}
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@Override
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public void cancel() {
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System.out.println(requestUri + " cancelled");
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}
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@Override
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public void failed(final Exception cause) {
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System.out.println(requestUri + "->" + cause);
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}
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@Override
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public void produceRequest(final RequestChannel channel) throws HttpException, IOException {
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requestProducer.sendRequest(channel);
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}
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@Override
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public int available() {
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return requestProducer.available();
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}
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@Override
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public void produce(final DataStreamChannel channel) throws IOException {
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requestProducer.produce(channel);
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}
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@Override
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public void consumeInformation(final HttpResponse response) throws HttpException, IOException {
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System.out.println(requestUri + "->" + response.getCode());
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}
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@Override
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public void consumeResponse(final HttpResponse response, final EntityDetails entityDetails) throws HttpException, IOException {
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System.out.println(requestUri + "->" + response.getCode());
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responseConsumer.consumeResponse(response, entityDetails, null);
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}
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@Override
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public void updateCapacity(final CapacityChannel capacityChannel) throws IOException {
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responseConsumer.updateCapacity(capacityChannel);
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}
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@Override
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public int consume(final ByteBuffer src) throws IOException {
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return responseConsumer.consume(src);
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}
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@Override
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public void streamEnd(final List<? extends Header> trailers) throws HttpException, IOException {
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responseConsumer.streamEnd(trailers);
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}
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});
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latch.await(1, TimeUnit.MINUTES);
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System.out.println("Shutting down");
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client.shutdown(ShutdownType.GRACEFUL);
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}
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}
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@ -0,0 +1,147 @@
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/*
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* ====================================================================
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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* ====================================================================
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*
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* This software consists of voluntary contributions made by many
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* individuals on behalf of the Apache Software Foundation. For more
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* information on the Apache Software Foundation, please see
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* <http://www.apache.org/>.
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*
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*/
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package org.apache.hc.client5.http.examples;
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import java.io.IOException;
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import java.net.URI;
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import java.nio.ByteBuffer;
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import java.util.List;
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import java.util.concurrent.CountDownLatch;
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import java.util.concurrent.TimeUnit;
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import org.apache.hc.client5.http.impl.async.HttpAsyncClients;
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import org.apache.hc.client5.http.impl.async.MinimalHttpAsyncClient;
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import org.apache.hc.core5.http.ContentType;
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import org.apache.hc.core5.http.EntityDetails;
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import org.apache.hc.core5.http.Header;
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import org.apache.hc.core5.http.HttpException;
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import org.apache.hc.core5.http.HttpResponse;
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import org.apache.hc.core5.http.nio.AsyncClientExchangeHandler;
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import org.apache.hc.core5.http.nio.BasicRequestProducer;
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import org.apache.hc.core5.http.nio.BasicResponseConsumer;
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import org.apache.hc.core5.http.nio.CapacityChannel;
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import org.apache.hc.core5.http.nio.DataStreamChannel;
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import org.apache.hc.core5.http.nio.RequestChannel;
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import org.apache.hc.core5.http.nio.entity.BasicAsyncEntityProducer;
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import org.apache.hc.core5.http.nio.entity.StringAsyncEntityConsumer;
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import org.apache.hc.core5.http2.HttpVersionPolicy;
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import org.apache.hc.core5.http2.config.H2Config;
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import org.apache.hc.core5.io.ShutdownType;
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import org.apache.hc.core5.reactor.IOReactorConfig;
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import org.apache.hc.core5.util.Timeout;
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/**
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* This example demonstrates a full-duplex, streaming HTTP/2 message exchange.
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*/
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public class AsyncClientHttp2FullDuplexExchange {
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public static void main(final String[] args) throws Exception {
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final IOReactorConfig ioReactorConfig = IOReactorConfig.custom()
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.setSoTimeout(Timeout.ofSeconds(5))
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.build();
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final MinimalHttpAsyncClient client = HttpAsyncClients.createMinimal(
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HttpVersionPolicy.FORCE_HTTP_2, H2Config.DEFAULT, null, ioReactorConfig);
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client.start();
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final URI requestUri = new URI("http://http2bin.org/post");
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final BasicRequestProducer requestProducer = new BasicRequestProducer(
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"POST", requestUri, new BasicAsyncEntityProducer("stuff", ContentType.TEXT_PLAIN));
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final BasicResponseConsumer<String> responseConsumer = new BasicResponseConsumer<>(
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new StringAsyncEntityConsumer());
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final CountDownLatch latch = new CountDownLatch(1);
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client.execute(new AsyncClientExchangeHandler() {
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@Override
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public void releaseResources() {
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requestProducer.releaseResources();
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responseConsumer.releaseResources();
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latch.countDown();
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}
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@Override
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public void cancel() {
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System.out.println(requestUri + " cancelled");
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}
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@Override
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public void failed(final Exception cause) {
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System.out.println(requestUri + "->" + cause);
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}
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@Override
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public void produceRequest(final RequestChannel channel) throws HttpException, IOException {
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requestProducer.sendRequest(channel);
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}
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@Override
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public int available() {
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return requestProducer.available();
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}
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@Override
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public void produce(final DataStreamChannel channel) throws IOException {
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requestProducer.produce(channel);
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}
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@Override
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public void consumeInformation(final HttpResponse response) throws HttpException, IOException {
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System.out.println(requestUri + "->" + response.getCode());
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}
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@Override
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public void consumeResponse(final HttpResponse response, final EntityDetails entityDetails) throws HttpException, IOException {
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System.out.println(requestUri + "->" + response.getCode());
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responseConsumer.consumeResponse(response, entityDetails, null);
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}
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@Override
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public void updateCapacity(final CapacityChannel capacityChannel) throws IOException {
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responseConsumer.updateCapacity(capacityChannel);
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}
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@Override
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public int consume(final ByteBuffer src) throws IOException {
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return responseConsumer.consume(src);
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}
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@Override
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public void streamEnd(final List<? extends Header> trailers) throws HttpException, IOException {
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responseConsumer.streamEnd(trailers);
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}
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});
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latch.await(1, TimeUnit.MINUTES);
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System.out.println("Shutting down");
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client.shutdown(ShutdownType.GRACEFUL);
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}
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}
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