| /* |
| * ==================================================================== |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| * |
| */ |
| |
| package org.apache.hc.core5.http; |
| |
| import org.apache.hc.core5.annotation.Contract; |
| import org.apache.hc.core5.annotation.ThreadingBehavior; |
| |
| /** |
| * Represents a strategy to determine length of the enclosed content entity |
| * based on properties of the HTTP message. |
| * |
| * @since 4.0 |
| */ |
| @Contract(threading = ThreadingBehavior.STATELESS) |
| public interface ContentLengthStrategy { |
| |
| /** |
| * Message body chunk coded |
| */ |
| long CHUNKED = -1; |
| |
| /** |
| * Message body not explicitly delineated. Legal for HTTP response messages |
| * and illegal for HTTP request messages. |
| */ |
| long UNDEFINED = -Long.MAX_VALUE; |
| |
| /** |
| * Returns length of the given message in bytes. The returned value |
| * must be a non-negative number, {@link #CHUNKED} if the message is |
| * chunk coded, or {@link #UNDEFINED} if the message is not explicitly |
| * delineated. |
| * |
| * @param message HTTP message |
| * @return content length, {@link #UNDEFINED}, or {@link #CHUNKED} |
| * |
| * @throws HttpException in case of HTTP protocol violation |
| */ |
| long determineLength(HttpMessage message) throws HttpException; |
| |
| } |