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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.client.methods;
29  
30  import org.apache.http.Header;
31  import org.apache.http.HttpEntity;
32  import org.apache.http.HttpEntityEnclosingRequest;
33  import org.apache.http.annotation.NotThreadSafe;
34  import org.apache.http.client.utils.CloneUtils;
35  import org.apache.http.protocol.HTTP;
36  
37  /**
38   * Basic implementation of an entity enclosing HTTP request
39   * that can be modified
40   *
41   * @since 4.0
42   */
43  @NotThreadSafe // HttpRequestBase is @NotThreadSafe
44  public abstract class HttpEntityEnclosingRequestBase
45      extends HttpRequestBase implements HttpEntityEnclosingRequest {
46  
47      private HttpEntity entity;
48  
49      public HttpEntityEnclosingRequestBase() {
50          super();
51      }
52  
53      @Override
54      public HttpEntity getEntity() {
55          return this.entity;
56      }
57  
58      @Override
59      public void setEntity(final HttpEntity entity) {
60          this.entity = entity;
61      }
62  
63      @Override
64      public boolean expectContinue() {
65          final Header expect = getFirstHeader(HTTP.EXPECT_DIRECTIVE);
66          return expect != null && HTTP.EXPECT_CONTINUE.equalsIgnoreCase(expect.getValue());
67      }
68  
69      @Override
70      public Object clone() throws CloneNotSupportedException {
71          final HttpEntityEnclosingRequestBase clone =
72              (HttpEntityEnclosingRequestBase) super.clone();
73          if (this.entity != null) {
74              clone.entity = CloneUtils.cloneObject(this.entity);
75          }
76          return clone;
77      }
78  
79  }