1 /* 2 * $HeadURL: http://svn.apache.org/repos/asf/httpcomponents/httpclient/trunk/module-client/src/main/java/org/apache/http/conn/OperatedClientConnection.java $ 3 * $Revision: 646087 $ 4 * $Date: 2008-04-08 14:36:46 -0700 (Tue, 08 Apr 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.conn; 33 34 import java.io.IOException; 35 import java.net.Socket; 36 37 import org.apache.http.HttpClientConnection; 38 import org.apache.http.HttpHost; 39 import org.apache.http.HttpInetConnection; 40 import org.apache.http.params.HttpParams; 41 42 43 /** 44 * A client-side connection that relies on outside logic to connect sockets to the 45 * appropriate hosts. It can be operated directly by an application, or through an 46 * {@link ClientConnectionOperator operator}. 47 * 48 * 49 * @author <a href="mailto:rolandw at apache.org">Roland Weber</a> 50 * 51 * 52 * <!-- empty lines to avoid svn diff problems --> 53 * @version $Revision: 646087 $ $Date: 2008-04-08 14:36:46 -0700 (Tue, 08 Apr 2008) $ 54 * 55 * @since 4.0 56 * 57 * @deprecated Please use {@link java.net.URL#openConnection} instead. 58 * Please visit <a href="http://android-developers.blogspot.com/2011/09/androids-http-clients.html">this webpage</a> 59 * for further details. 60 */ 61 @Deprecated 62 public interface OperatedClientConnection 63 extends HttpClientConnection, HttpInetConnection { 64 65 /** 66 * Obtains the target host for this connection. 67 * If the connection is to a proxy but not tunnelled, this is 68 * the proxy. If the connection is tunnelled through a proxy, 69 * this is the target of the tunnel. 70 * <br/> 71 * The return value is well-defined only while the connection is open. 72 * It may change even while the connection is open, 73 * because of an {@link #update update}. 74 * 75 * @return the host to which this connection is opened 76 */ 77 HttpHost getTargetHost() 78 ; 79 80 /** 81 * Indicates whether this connection is secure. 82 * The return value is well-defined only while the connection is open. 83 * It may change even while the connection is open, 84 * because of an {@link #update update}. 85 * 86 * @return <code>true</code> if this connection is secure, 87 * <code>false</code> otherwise 88 */ 89 boolean isSecure() 90 ; 91 92 /** 93 * Obtains the socket for this connection. 94 * The return value is well-defined only while the connection is open. 95 * It may change even while the connection is open, 96 * because of an {@link #update update}. 97 * 98 * @return the socket for communicating with the 99 * {@link #getTargetHost target host} 100 */ 101 Socket getSocket() 102 ; 103 104 105 // There is no getParams(). For the moment, we 106 // do not require connections to store parameters. 107 108 109 /** 110 * Signals that this connection is in the process of being open. 111 * <br/> 112 * By calling this method, you can provide the connection with 113 * the unconnected socket that will be connected before 114 * {@link #openCompleted} is called. This allows 115 * the connection to close that socket if 116 * {@link org.apache.http.HttpConnection#shutdown shutdown} 117 * is called before it is open. Closing the unconnected socket 118 * will interrupt a thread that is blocked on the connect. 119 * Otherwise, that thread will either time out on the connect, 120 * or it returns successfully and then opens this connection 121 * which was just shut down. 122 * <br/> 123 * You also must call {@link #openCompleted} in order to complete 124 * the process 125 * 126 * @param sock the unconnected socket which is about to 127 * be connected. 128 * @param target the target host of this connection 129 */ 130 void opening(Socket sock, HttpHost target) 131 throws IOException 132 ; 133 134 135 /** 136 * Signals that the connection has been successfully open. 137 * An attempt to call this method on an open connection will cause 138 * an exception. 139 * 140 * @param secure <code>true</code> if this connection is secure, for 141 * example if an <code>SSLSocket</code> is used, or 142 * <code>false</code> if it is not secure 143 * @param params parameters for this connection. The parameters will 144 * be used when creating dependent objects, for example 145 * to determine buffer sizes. 146 */ 147 void openCompleted(boolean secure, HttpParams params) 148 throws IOException 149 ; 150 151 152 /** 153 * Updates this connection. 154 * A connection can be updated only while it is open. 155 * Updates are used for example when a tunnel has been established, 156 * or when a TLS/SSL connection has been layered on top of a plain 157 * socket connection. 158 * <br/> 159 * <b>Note:</b> Updating the connection will <i>not</i> close the 160 * previously used socket. It is the caller's responsibility to close 161 * that socket if it is no longer required. 162 * 163 * @param sock the new socket for communicating with the target host, 164 * or <code>null</code> to continue using the old socket. 165 * If <code>null</code> is passed, helper objects that 166 * depend on the socket should be re-used. In that case, 167 * some changes in the parameters will not take effect. 168 * @param target the new target host of this connection 169 * @param secure <code>true</code> if this connection is now secure, 170 * <code>false</code> if it is not secure 171 * @param params new parameters for this connection 172 */ 173 void update(Socket sock, HttpHost target, 174 boolean secure, HttpParams params) 175 throws IOException 176 ; 177 178 179 } // interface OperatedClientConnection 180
