1/*
2 * $HeadURL: http://svn.apache.org/repos/asf/httpcomponents/httpcore/trunk/module-main/src/main/java/org/apache/http/entity/ContentLengthStrategy.java $
3 * $Revision: 613298 $
4 * $Date: 2008-01-18 14:09:22 -0800 (Fri, 18 Jan 2008) $
5 *
6 * ====================================================================
7 * Licensed to the Apache Software Foundation (ASF) under one
8 * or more contributor license agreements.  See the NOTICE file
9 * distributed with this work for additional information
10 * regarding copyright ownership.  The ASF licenses this file
11 * to you under the Apache License, Version 2.0 (the
12 * "License"); you may not use this file except in compliance
13 * with the License.  You may obtain a copy of the License at
14 *
15 *   http://www.apache.org/licenses/LICENSE-2.0
16 *
17 * Unless required by applicable law or agreed to in writing,
18 * software distributed under the License is distributed on an
19 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
20 * KIND, either express or implied.  See the License for the
21 * specific language governing permissions and limitations
22 * under the License.
23 * ====================================================================
24 *
25 * This software consists of voluntary contributions made by many
26 * individuals on behalf of the Apache Software Foundation.  For more
27 * information on the Apache Software Foundation, please see
28 * <http://www.apache.org/>.
29 *
30 */
31
32package org.apache.http.entity;
33
34import org.apache.http.HttpException;
35import org.apache.http.HttpMessage;
36
37/**
38 * Represents a strategy to determine the content length based on the properties
39 * of an HTTP message.
40 *
41 * @author <a href="mailto:oleg at ural.ru">Oleg Kalnichevski</a>
42 *
43 * @version $Revision: 613298 $
44 *
45 * @since 4.0
46 */
47public interface ContentLengthStrategy {
48
49    public static final int IDENTITY         = -1;
50    public static final int CHUNKED          = -2;
51
52    long determineLength(HttpMessage message) throws HttpException;
53
54}
55