4.1.x/httpasyncclient/src/examples/org/apache/http/examples/nio/client/AsyncClientPipelined.java

/*
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 * 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
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 * <http://www.apache.org/>.
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 */
package org.apache.http.examples.nio.client;

import java.util.Arrays;
import java.util.List;
import java.util.concurrent.Future;

import org.apache.http.HttpHost;
import org.apache.http.HttpRequest;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.nio.client.CloseableHttpPipeliningClient;
import org.apache.http.impl.nio.client.HttpAsyncClients;

/**
 * This example demonstrates a pipelinfed execution of multiple HTTP request / response exchanges
 * Response content is buffered in memory for simplicity.
 */
public class AsyncClientPipelined {

    public static void main(final String[] args) throws Exception {
        CloseableHttpPipeliningClient httpclient = HttpAsyncClients.createPipelining();
        try {
            httpclient.start();

            HttpHost targetHost = new HttpHost("httpbin.org", 80);
            HttpGet[] resquests = {
                    new HttpGet("/"),
                    new HttpGet("/ip"),
                    new HttpGet("/headers"),
                    new HttpGet("/get")
            };

            Future<List<HttpResponse>> future = httpclient.execute(targetHost,
                    Arrays.<HttpRequest>asList(resquests), null);
            List<HttpResponse> responses = future.get();
            for (HttpResponse response: responses) {
                System.out.println(response.getStatusLine());
            }
            System.out.println("Shutting down");
        } finally {
            httpclient.close();
        }
        System.out.println("Done");
    }

}