1069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project/* 2069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * $HeadURL: http://svn.apache.org/repos/asf/httpcomponents/httpcore/trunk/module-main/src/main/java/org/apache/http/ConnectionReuseStrategy.java $ 3069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * $Revision: 496070 $ 4069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * $Date: 2007-01-14 04:18:34 -0800 (Sun, 14 Jan 2007) $ 5069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 6069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * ==================================================================== 7069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * Licensed to the Apache Software Foundation (ASF) under one 8069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * or more contributor license agreements. See the NOTICE file 9069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * distributed with this work for additional information 10069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * regarding copyright ownership. The ASF licenses this file 11069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * to you under the Apache License, Version 2.0 (the 12069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * "License"); you may not use this file except in compliance 13069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * with the License. You may obtain a copy of the License at 14069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 15069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 16069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 17069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * Unless required by applicable law or agreed to in writing, 18069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * software distributed under the License is distributed on an 19069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 20069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * KIND, either express or implied. See the License for the 21069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * specific language governing permissions and limitations 22069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * under the License. 23069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * ==================================================================== 24069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 25069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * This software consists of voluntary contributions made by many 26069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * individuals on behalf of the Apache Software Foundation. For more 27069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * information on the Apache Software Foundation, please see 28069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * <http://www.apache.org/>. 29069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 30069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project */ 31069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 32069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectpackage org.apache.http; 33069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 34069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.protocol.HttpContext; 35069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 36069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project/** 37069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * Interface for deciding whether a connection should be kept alive. 38069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 39069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * @author <a href="mailto:oleg at ural.ru">Oleg Kalnichevski</a> 40069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 41069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 42069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * <!-- empty lines above to avoid 'svn diff' context problems --> 43069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * @version $Revision: 496070 $ 44069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 45069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * @since 4.0 46069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project */ 47069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectpublic interface ConnectionReuseStrategy { 48069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 49069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project /** 50069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * Decides whether a connection can be kept open after a request. 51069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * If this method returns <code>false</code>, the caller MUST 52069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * close the connection to correctly implement the HTTP protocol. 53069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * If it returns <code>true</code>, the caller SHOULD attempt to 54069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * keep the connection open for reuse with another request. 55069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * <br/> 56069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * One can use the HTTP context to retrieve additional objects that 57069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * may be relevant for the keep-alive strategy: the actual HTTP 58069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * connection, the original HTTP request, target host if known, 59069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * number of times the connection has been reused already and so on. 60069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * <br/> 61069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * If the connection is already closed, <code>false</code> is returned. 62069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * The stale connection check MUST NOT be triggered by a 63069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * connection reuse strategy. 64069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 65069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * @param response 66069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * The last response received over that connection. 67069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * @param context the context in which the connection is being 68069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * used. 69069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 70069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * @return <code>true</code> if the connection is allowed to be reused, or 71069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * <code>false</code> if it MUST NOT be reused 72069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project */ 73069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project boolean keepAlive(HttpResponse response, HttpContext context); 74069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 75069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project} 76