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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  
28  package org.apache.hc.client5.http.impl.classic;
29  
30  import org.apache.hc.client5.http.impl.io.PoolingHttpClientConnectionManager;
31  import org.apache.hc.client5.http.io.HttpClientConnectionManager;
32  
33  /**
34   * Factory methods for {@link CloseableHttpClient} instances.
35   *
36   * @since 4.3
37   */
38  public final class HttpClients {
39  
40      private HttpClients() {
41          super();
42      }
43  
44      /**
45       * Creates builder object for construction of custom
46       * {@link CloseableHttpClient} instances.
47       */
48      public static HttpClientBuilder custom() {
49          return HttpClientBuilder.create();
50      }
51  
52      /**
53       * Creates {@link CloseableHttpClient} instance with default
54       * configuration.
55       */
56      public static CloseableHttpClient createDefault() {
57          return HttpClientBuilder.create().build();
58      }
59  
60      /**
61       * Creates {@link CloseableHttpClient} instance with default
62       * configuration based on system properties.
63       */
64      public static CloseableHttpClient createSystem() {
65          return HttpClientBuilder.create().useSystemProperties().build();
66      }
67  
68      /**
69       * Creates {@link CloseableHttpClient} instance that implements
70       * the most basic HTTP protocol support.
71       */
72      public static MinimalHttpClient createMinimal() {
73          return new MinimalHttpClient(new PoolingHttpClientConnectionManager());
74      }
75  
76      /**
77       * Creates {@link CloseableHttpClient} instance that implements
78       * the most basic HTTP protocol support.
79       */
80      public static MinimalHttpClient createMinimal(final HttpClientConnectionManager connManager) {
81          return new MinimalHttpClient(connManager);
82      }
83  
84  }