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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.core5.http;
29  
30  import java.util.Set;
31  
32  /**
33   * Details of an entity transmitted by a message.
34   *
35   * @since 5.0
36   */
37  public interface EntityDetails {
38  
39      /**
40       * Returns length of the entity, if known.
41       */
42      long getContentLength();
43  
44      /**
45       * Returns content type of the entity, if known.
46       */
47      String getContentType();
48  
49      /**
50       * Returns content encoding of the entity, if known.
51       */
52      String getContentEncoding();
53  
54      /**
55       * Returns chunked transfer hint for this entity.
56       * <p>
57       * The behavior of wrapping entities is implementation dependent,
58       * but should respect the primary purpose.
59       */
60      boolean isChunked();
61  
62      /**
63       * Preliminary declaration of trailing headers.
64       */
65      Set<String> getTrailerNames();
66  
67  }