1 /* 2 * $HeadURL: http://svn.apache.org/repos/asf/httpcomponents/httpclient/trunk/module-client/src/main/java/org/apache/http/impl/conn/DefaultClientConnection.java $ 3 * $Revision: 673450 $ 4 * $Date: 2008-07-02 10:35:05 -0700 (Wed, 02 Jul 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.impl.conn; 33 34 35 import java.io.IOException; 36 import java.net.Socket; 37 38 import org.apache.commons.logging.Log; 39 import org.apache.commons.logging.LogFactory; 40 import org.apache.http.Header; 41 import org.apache.http.HttpException; 42 import org.apache.http.HttpHost; 43 import org.apache.http.HttpRequest; 44 import org.apache.http.HttpResponse; 45 import org.apache.http.HttpResponseFactory; 46 import org.apache.http.params.HttpParams; 47 import org.apache.http.impl.SocketHttpClientConnection; 48 import org.apache.http.io.HttpMessageParser; 49 import org.apache.http.io.SessionInputBuffer; 50 import org.apache.http.io.SessionOutputBuffer; 51 52 import org.apache.http.conn.OperatedClientConnection; 53 54 55 /** 56 * Default implementation of an operated client connection. 57 * 58 * @author <a href="mailto:rolandw at apache.org">Roland Weber</a> 59 * 60 * 61 * <!-- empty lines to avoid svn diff problems --> 62 * @version $Revision: 673450 $ $Date: 2008-07-02 10:35:05 -0700 (Wed, 02 Jul 2008) $ 63 * 64 * @since 4.0 65 */ 66 public class DefaultClientConnection extends SocketHttpClientConnection 67 implements OperatedClientConnection { 68 69 private final Log log = LogFactory.getLog(getClass()); 70 private final Log headerLog = LogFactory.getLog("org.apache.http.headers"); 71 private final Log wireLog = LogFactory.getLog("org.apache.http.wire"); 72 73 /** The unconnected socket */ 74 private volatile Socket socket; 75 76 /** The target host of this connection. */ 77 private HttpHost targetHost; 78 79 /** Whether this connection is secure. */ 80 private boolean connSecure; 81 82 /** True if this connection was shutdown. */ 83 private volatile boolean shutdown; 84 85 public DefaultClientConnection() { 86 super(); 87 } 88 89 90 // non-javadoc, see interface OperatedClientConnection 91 public final HttpHost getTargetHost() { 92 return this.targetHost; 93 } 94 95 96 // non-javadoc, see interface OperatedClientConnection 97 public final boolean isSecure() { 98 return this.connSecure; 99 } 100 101 102 @Override 103 public final Socket getSocket() { 104 return this.socket; 105 } 106 107 108 public void opening(Socket sock, HttpHost target) throws IOException { 109 assertNotOpen(); 110 this.socket = sock; 111 this.targetHost = target; 112 113 // Check for shutdown after assigning socket, so that 114 if (this.shutdown) { 115 sock.close(); // allow this to throw... 116 // ...but if it doesn't, explicitly throw one ourselves. 117 throw new IOException("Connection already shutdown"); 118 } 119 } 120 121 122 public void openCompleted(boolean secure, HttpParams params) throws IOException { 123 assertNotOpen(); 124 if (params == null) { 125 throw new IllegalArgumentException 126 ("Parameters must not be null."); 127 } 128 this.connSecure = secure; 129 bind(this.socket, params); 130 } 131 132 /** 133 * Force-closes this connection. 134 * If the connection is still in the process of being open (the method 135 * {@link #opening opening} was already called but 136 * {@link #openCompleted openCompleted} was not), the associated 137 * socket that is being connected to a remote address will be closed. 138 * That will interrupt a thread that is blocked on connecting 139 * the socket. 140 * If the connection is not yet open, this will prevent the connection 141 * from being opened. 142 * 143 * @throws IOException in case of a problem 144 */ 145 @Override 146 public void shutdown() throws IOException { 147 log.debug("Connection shut down"); 148 shutdown = true; 149 150 super.shutdown(); 151 Socket sock = this.socket; // copy volatile attribute 152 if (sock != null) 153 sock.close(); 154 155 } // shutdown 156 157 158 @Override 159 public void close() throws IOException { 160 log.debug("Connection closed"); 161 super.close(); 162 } 163 164 165 @Override 166 protected SessionInputBuffer createSessionInputBuffer( 167 final Socket socket, 168 int buffersize, 169 final HttpParams params) throws IOException { 170 SessionInputBuffer inbuffer = super.createSessionInputBuffer( 171 socket, 172 buffersize, 173 params); 174 if (wireLog.isDebugEnabled()) { 175 inbuffer = new LoggingSessionInputBuffer(inbuffer, new Wire(wireLog)); 176 } 177 return inbuffer; 178 } 179 180 181 @Override 182 protected SessionOutputBuffer createSessionOutputBuffer( 183 final Socket socket, 184 int buffersize, 185 final HttpParams params) throws IOException { 186 SessionOutputBuffer outbuffer = super.createSessionOutputBuffer( 187 socket, 188 buffersize, 189 params); 190 if (wireLog.isDebugEnabled()) { 191 outbuffer = new LoggingSessionOutputBuffer(outbuffer, new Wire(wireLog)); 192 } 193 return outbuffer; 194 } 195 196 197 @Override 198 protected HttpMessageParser createResponseParser( 199 final SessionInputBuffer buffer, 200 final HttpResponseFactory responseFactory, 201 final HttpParams params) { 202 // override in derived class to specify a line parser 203 return new DefaultResponseParser 204 (buffer, null, responseFactory, params); 205 } 206 207 208 // non-javadoc, see interface OperatedClientConnection 209 public void update(Socket sock, HttpHost target, 210 boolean secure, HttpParams params) 211 throws IOException { 212 213 assertOpen(); 214 if (target == null) { 215 throw new IllegalArgumentException 216 ("Target host must not be null."); 217 } 218 if (params == null) { 219 throw new IllegalArgumentException 220 ("Parameters must not be null."); 221 } 222 223 if (sock != null) { 224 this.socket = sock; 225 bind(sock, params); 226 } 227 targetHost = target; 228 connSecure = secure; 229 230 } // update 231 232 233 @Override 234 public HttpResponse receiveResponseHeader() throws HttpException, IOException { 235 HttpResponse response = super.receiveResponseHeader(); 236 if (headerLog.isDebugEnabled()) { 237 headerLog.debug("<< " + response.getStatusLine().toString()); 238 Header[] headers = response.getAllHeaders(); 239 for (Header header : headers) { 240 headerLog.debug("<< " + header.toString()); 241 } 242 } 243 return response; 244 } 245 246 247 @Override 248 public void sendRequestHeader(HttpRequest request) throws HttpException, IOException { 249 super.sendRequestHeader(request); 250 if (headerLog.isDebugEnabled()) { 251 headerLog.debug(">> " + request.getRequestLine().toString()); 252 Header[] headers = request.getAllHeaders(); 253 for (Header header : headers) { 254 headerLog.debug(">> " + header.toString()); 255 } 256 } 257 } 258 259 } // class DefaultClientConnection 260
