/*
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    * 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
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  package org.apache.hc.client5.http.examples;
  
  import java.util.concurrent.Future;
  
  import javax.net.ssl.SSLPeerUnverifiedException;
  import javax.net.ssl.SSLSession;
  
  import org.apache.hc.client5.http.async.methods.SimpleHttpRequest;
  import org.apache.hc.client5.http.async.methods.SimpleHttpResponse;
  import org.apache.hc.client5.http.async.methods.SimpleRequestBuilder;
  import org.apache.hc.client5.http.async.methods.SimpleRequestProducer;
  import org.apache.hc.client5.http.async.methods.SimpleResponseConsumer;
  import org.apache.hc.client5.http.impl.async.CloseableHttpAsyncClient;
  import org.apache.hc.client5.http.impl.async.HttpAsyncClients;
  import org.apache.hc.client5.http.protocol.HttpClientContext;
  import org.apache.hc.core5.concurrent.FutureCallback;
  import org.apache.hc.core5.http.HttpHost;
  import org.apache.hc.core5.http.message.StatusLine;
  import org.apache.hc.core5.io.CloseMode;
  
  /**
   * This example demonstrates how to use SNI to send requests to a virtual HTTPS
   * endpoint using the async I/O.
   */
  public class AsyncClientSNI {
  
      public static void main(final String[] args) throws Exception {
          try (final CloseableHttpAsyncClient client = HttpAsyncClients.createSystem()) {
  
              client.start();
  
              final HttpHost target = new HttpHost("https", "www.google.com");
              final SimpleHttpRequest request = SimpleRequestBuilder.get()
                      .setUri("https://www.google.ch/")
                      .build();
  
              final HttpClientContext clientContext = HttpClientContext.create();
  
              System.out.println("Executing request " + request);
              final Future<SimpleHttpResponse> future = client.execute(
                      target,
                      SimpleRequestProducer.create(request),
                      SimpleResponseConsumer.create(),
                      null,
                      clientContext,
                      new FutureCallback<SimpleHttpResponse>() {
  
                          @Override
                          public void completed(final SimpleHttpResponse response) {
                              System.out.println(request + "->" + new StatusLine(response));
                              final SSLSession sslSession = clientContext.getSSLSession();
                              if (sslSession != null) {
                                  try {
                                      System.out.println("Peer: " + sslSession.getPeerPrincipal());
                                      System.out.println("TLS protocol: " + sslSession.getProtocol());
                                      System.out.println("TLS cipher suite: " + sslSession.getCipherSuite());
                                  } catch (final SSLPeerUnverifiedException ignore) {
                                  }
                              }
                          }
  
                          @Override
                          public void failed(final Exception ex) {
                              System.out.println(request + "->" + ex);
                          }
  
                          @Override
                          public void cancelled() {
                              System.out.println(request + " cancelled");
                          }
  
                      });
              future.get();
 
             System.out.println("Shutting down");
             client.close(CloseMode.GRACEFUL);
         }
     }
 
 }