1 /*
2 * ====================================================================
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership. The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 * ====================================================================
20 *
21 * This software consists of voluntary contributions made by many
22 * individuals on behalf of the Apache Software Foundation. For more
23 * information on the Apache Software Foundation, please see
24 * <http://www.apache.org/>.
25 *
26 */
27
28 package org.apache.hc.client5.http.examples;
29
30 import org.apache.hc.client5.http.classic.methods.HttpGet;
31 import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
32 import org.apache.hc.client5.http.impl.classic.HttpClients;
33 import org.apache.hc.core5.http.ClassicHttpResponse;
34 import org.apache.hc.core5.http.HttpHost;
35 import org.apache.hc.core5.http.io.entity.EntityUtils;
36 import org.apache.hc.core5.http.message.StatusLine;
37
38 /**
39 * This example demonstrates how to ensure the release of the underlying HTTP connection back to
40 * the connection manager in case of a manual processing of HTTP responses.
41 */
42 public class ClientConnectionRelease {
43
44 public static void main(final String[] args) throws Exception {
45 try (final CloseableHttpClient httpclient = HttpClients.createDefault()) {
46 final HttpHost target = new HttpHost("http", "httpbin.org");
47 final HttpGet httpget = new HttpGet("/get");
48
49 System.out.println("Executing request " + httpget.getMethod() + " " + httpget.getUri());
50
51 // Make sure the response is always closed at the end of the message exchange
52 try (ClassicHttpResponse response = httpclient.executeOpen(target, httpget, null)) {
53 System.out.println("----------------------------------------");
54 System.out.println(httpget + "->" + new StatusLine(response));
55 // Make sure the response content entity has been fully consumed
56 // in order to ensure the underlying connection can be re-used for
57 // subsequent requests
58 EntityUtils.consume(response.getEntity());
59 }
60 }
61 }
62
63 }
64