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 * Gets length of this entity, if known. 41 * 42 * @return the length of this entity, may be {@code 0}. 43 */ 44 long getContentLength(); 45 46 /** 47 * Gets content type of this entity, if known. 48 * 49 * @return the content type of this entity, may be {@code null}. 50 */ 51 String getContentType(); 52 53 /** 54 * Gets content encoding of this entity, if known. 55 * 56 * @return the content encoding of this entity, may be {@code null}. 57 */ 58 String getContentEncoding(); 59 60 /** 61 * Tests the chunked transfer hint for this entity. 62 * <p> 63 * The behavior of wrapping entities is implementation dependent, 64 * but should respect the primary purpose. 65 * </p> 66 * @return the chunked transfer hint for this entity. 67 */ 68 boolean isChunked(); 69 70 /** 71 * Gets the preliminary declaration of trailing headers. 72 * 73 * @return the preliminary declaration of trailing headers. 74 */ 75 Set<String> getTrailerNames(); 76 77 }