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      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 
     32 package org.apache.http.entity;
     33 
     34 import org.apache.http.HttpException;
     35 import 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  */
     47 public 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