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