1 /* 2 * $HeadURL: http://svn.apache.org/repos/asf/httpcomponents/httpcore/trunk/module-main/src/main/java/org/apache/http/HttpResponse.java $ 3 * $Revision: 652956 $ 4 * $Date: 2008-05-02 17:13:05 -0700 (Fri, 02 May 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; 33 34 35 import java.util.Locale; 36 37 38 /** 39 * An HTTP response. 40 * 41 * @author <a href="mailto:oleg at ural.ru">Oleg Kalnichevski</a> 42 * 43 * @version $Revision: 652956 $ 44 * 45 * @since 4.0 46 */ 47 public interface HttpResponse extends HttpMessage { 48 49 /** 50 * Obtains the status line of this response. 51 * The status line can be set using one of the 52 * {@link #setStatusLine setStatusLine} methods, 53 * or it can be initialized in a constructor. 54 * 55 * @return the status line, or <code>null</code> if not yet set 56 */ 57 StatusLine getStatusLine(); 58 59 /** 60 * Sets the status line of this response. 61 * 62 * @param statusline the status line of this response 63 */ 64 void setStatusLine(StatusLine statusline); 65 66 /** 67 * Sets the status line of this response. 68 * The reason phrase will be determined based on the current 69 * {@link #getLocale locale}. 70 * 71 * @param ver the HTTP version 72 * @param code the status code 73 */ 74 void setStatusLine(ProtocolVersion ver, int code); 75 76 /** 77 * Sets the status line of this response with a reason phrase. 78 * 79 * @param ver the HTTP version 80 * @param code the status code 81 * @param reason the reason phrase, or <code>null</code> to omit 82 */ 83 void setStatusLine(ProtocolVersion ver, int code, String reason); 84 85 /** 86 * Updates the status line of this response with a new status code. 87 * The status line can only be updated if it is available. It must 88 * have been set either explicitly or in a constructor. 89 * <br/> 90 * The reason phrase will be updated according to the new status code, 91 * based on the current {@link #getLocale locale}. It can be set 92 * explicitly using {@link #setReasonPhrase setReasonPhrase}. 93 * 94 * @param code the HTTP status code. 95 * 96 * @throws IllegalStateException 97 * if the status line has not be set 98 * 99 * @see HttpStatus 100 * @see #setStatusLine(StatusLine) 101 * @see #setStatusLine(ProtocolVersion,int) 102 */ 103 void setStatusCode(int code) 104 throws IllegalStateException; 105 106 /** 107 * Updates the status line of this response with a new reason phrase. 108 * The status line can only be updated if it is available. It must 109 * have been set either explicitly or in a constructor. 110 * 111 * @param reason the new reason phrase as a single-line string, or 112 * <code>null</code> to unset the reason phrase 113 * 114 * @throws IllegalStateException 115 * if the status line has not be set 116 * 117 * @see #setStatusLine(StatusLine) 118 * @see #setStatusLine(ProtocolVersion,int) 119 */ 120 void setReasonPhrase(String reason) 121 throws IllegalStateException; 122 123 /** 124 * Obtains the message entity of this response, if any. 125 * The entity is provided by calling {@link #setEntity setEntity}. 126 * 127 * @return the response entity, or 128 * <code>null</code> if there is none 129 */ 130 HttpEntity getEntity(); 131 132 /** 133 * Associates a response entity with this response. 134 * 135 * @param entity the entity to associate with this response, or 136 * <code>null</code> to unset 137 */ 138 void setEntity(HttpEntity entity); 139 140 /** 141 * Obtains the locale of this response. 142 * The locale is used to determine the reason phrase 143 * for the {@link #setStatusCode status code}. 144 * It can be changed using {@link #setLocale setLocale}. 145 * 146 * @return the locale of this response, never <code>null</code> 147 */ 148 Locale getLocale(); 149 150 /** 151 * Changes the locale of this response. 152 * If there is a status line, it's reason phrase will be updated 153 * according to the status code and new locale. 154 * 155 * @param loc the new locale 156 * 157 * @see #getLocale getLocale 158 * @see #setStatusCode setStatusCode 159 */ 160 void setLocale(Locale loc); 161 } 162
