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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
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  package org.apache.hc.client5.http.impl;
28  
29  import org.apache.hc.core5.annotation.Contract;
30  import org.apache.hc.core5.annotation.Internal;
31  import org.apache.hc.core5.annotation.ThreadingBehavior;
32  import org.apache.hc.core5.http.HttpRequest;
33  import org.apache.hc.core5.http.HttpResponse;
34  import org.apache.hc.core5.http.HttpStatus;
35  import org.apache.hc.core5.http.Method;
36  import org.apache.hc.core5.http.impl.DefaultConnectionReuseStrategy;
37  import org.apache.hc.core5.http.protocol.HttpContext;
38  
39  @Internal
40  @Contract(threading = ThreadingBehavior.STATELESS)
41  public class DefaultClientConnectionReuseStrategy extends DefaultConnectionReuseStrategy {
42  
43      public static final DefaultClientConnectionReuseStrategynReuseStrategy.html#DefaultClientConnectionReuseStrategy">DefaultClientConnectionReuseStrategy INSTANCE = new DefaultClientConnectionReuseStrategy();
44  
45      @Override
46      public boolean keepAlive(final HttpRequest request, final HttpResponse response, final HttpContext context) {
47          if (Method.CONNECT.isSame(request.getMethod()) && response.getCode() == HttpStatus.SC_OK) {
48              return true;
49          }
50          return super.keepAlive(request, response, context);
51      }
52  
53  }