| /* |
| * ==================================================================== |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| * |
| */ |
| package org.apache.hc.client5.http.examples; |
| |
| import java.io.IOException; |
| import java.nio.CharBuffer; |
| import java.util.concurrent.Future; |
| |
| import org.apache.hc.client5.http.async.methods.AbstractCharResponseConsumer; |
| import org.apache.hc.client5.http.impl.async.CloseableHttpAsyncClient; |
| import org.apache.hc.client5.http.impl.async.HttpAsyncClients; |
| import org.apache.hc.core5.http.ContentType; |
| import org.apache.hc.core5.http.HttpException; |
| import org.apache.hc.core5.http.HttpHost; |
| import org.apache.hc.core5.http.HttpResponse; |
| import org.apache.hc.core5.http.message.BasicHttpRequest; |
| import org.apache.hc.core5.http.message.StatusLine; |
| import org.apache.hc.core5.http.nio.support.BasicRequestProducer; |
| import org.apache.hc.core5.http.support.BasicRequestBuilder; |
| import org.apache.hc.core5.io.CloseMode; |
| import org.apache.hc.core5.reactor.IOReactorConfig; |
| import org.apache.hc.core5.util.Timeout; |
| |
| /** |
| * Example of asynchronous HTTP/1.1 request execution with response streaming. |
| */ |
| public class AsyncClientHttpExchangeStreaming { |
| |
| public static void main(final String[] args) throws Exception { |
| |
| final IOReactorConfig ioReactorConfig = IOReactorConfig.custom() |
| .setSoTimeout(Timeout.ofSeconds(5)) |
| .build(); |
| |
| final CloseableHttpAsyncClient client = HttpAsyncClients.custom() |
| .setIOReactorConfig(ioReactorConfig) |
| .build(); |
| |
| client.start(); |
| |
| final HttpHost target = new HttpHost("httpbin.org"); |
| final String[] requestUris = new String[] {"/", "/ip", "/user-agent", "/headers"}; |
| |
| for (final String requestUri: requestUris) { |
| |
| final BasicHttpRequest request = BasicRequestBuilder.get() |
| .setHttpHost(target) |
| .setPath(requestUri) |
| .build(); |
| |
| System.out.println("Executing request " + request); |
| final Future<Void> future = client.execute( |
| new BasicRequestProducer(request, null), |
| new AbstractCharResponseConsumer<Void>() { |
| |
| @Override |
| protected void start( |
| final HttpResponse response, |
| final ContentType contentType) throws HttpException, IOException { |
| System.out.println(request + "->" + new StatusLine(response)); |
| } |
| |
| @Override |
| protected int capacityIncrement() { |
| return Integer.MAX_VALUE; |
| } |
| |
| @Override |
| protected void data(final CharBuffer data, final boolean endOfStream) throws IOException { |
| while (data.hasRemaining()) { |
| System.out.print(data.get()); |
| } |
| if (endOfStream) { |
| System.out.println(); |
| } |
| } |
| |
| @Override |
| protected Void buildResult() throws IOException { |
| return null; |
| } |
| |
| @Override |
| public void failed(final Exception cause) { |
| System.out.println(request + "->" + cause); |
| } |
| |
| @Override |
| public void releaseResources() { |
| } |
| |
| }, null); |
| future.get(); |
| } |
| |
| System.out.println("Shutting down"); |
| client.close(CloseMode.GRACEFUL); |
| } |
| |
| } |