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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
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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.classic.methods.HttpHead;
32  import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
33  import org.apache.hc.client5.http.impl.classic.HttpClients;
34  import org.apache.hc.client5.http.protocol.HttpClientContext;
35  import org.apache.hc.core5.http.EndpointDetails;
36  import org.apache.hc.core5.http.io.entity.EntityUtils;
37  import org.apache.hc.core5.http.message.StatusLine;
38  
39  /**
40   * This example demonstrates how to get details of the underlying connection endpoint.
41   */
42  public class ClientRemoteEndpointDetails {
43  
44      public static void main(final String[] args) throws Exception {
45          try (final CloseableHttpClient httpclient = HttpClients.createDefault()) {
46              // Create local HTTP context
47              final HttpClientContext localContext = new HttpClientContext();
48  
49              final HttpGet httpget = new HttpGet("http://httpbin.org/get");
50              System.out.println("Executing request " + httpget.getMethod() + " " + httpget.getUri());
51  
52              // Pass local context as a parameter
53              httpclient.execute(httpget, localContext, response -> {
54                  System.out.println("----------------------------------------");
55                  System.out.println(httpget + "->" + new StatusLine(response));
56                  EntityUtils.consume(response.getEntity());
57  
58                  final EndpointDetails endpointDetails = localContext.getEndpointDetails();
59                  System.out.println("Remote address: " + endpointDetails.getRemoteAddress());
60                  System.out.println("Request counts: " + endpointDetails.getRequestCount());
61                  System.out.println("Response counts: " + endpointDetails.getResponseCount());
62                  System.out.println("Bytes sent: " + endpointDetails.getSentBytesCount());
63                  System.out.println("Bytes received: " + endpointDetails.getReceivedBytesCount());
64  
65                  return null;
66              });
67  
68              // EndpointDetails is present in the context even if the underlying connection
69              // gets immediately released back to the connection pool
70  
71              final HttpHead httphead = new HttpHead("http://httpbin.org/get");
72              System.out.println("Executing request " + httphead.getMethod() + " " + httphead.getUri());
73  
74              // Pass local context as a parameter
75              httpclient.execute(httphead, localContext, response -> {
76                  System.out.println("----------------------------------------");
77                  System.out.println(httphead + "->" + new StatusLine(response));
78                  EntityUtils.consume(response.getEntity());
79  
80                  final EndpointDetails endpointDetails = localContext.getEndpointDetails();
81                  System.out.println("Remote address: " + endpointDetails.getRemoteAddress());
82                  System.out.println("Request counts: " + endpointDetails.getRequestCount());
83                  System.out.println("Response counts: " + endpointDetails.getResponseCount());
84                  System.out.println("Bytes sent: " + endpointDetails.getSentBytesCount());
85                  System.out.println("Bytes received: " + endpointDetails.getReceivedBytesCount());
86  
87                  return null;
88              });
89          }
90      }
91  
92  }
93