1 /* 2 * $HeadURL: http://svn.apache.org/repos/asf/httpcomponents/httpcore/trunk/module-main/src/main/java/org/apache/http/protocol/HttpService.java $ 3 * $Revision: 610763 $ 4 * $Date: 2008-01-10 04:01:13 -0800 (Thu, 10 Jan 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.protocol; 33 34 import java.io.IOException; 35 36 import org.apache.http.ConnectionReuseStrategy; 37 import org.apache.http.HttpEntity; 38 import org.apache.http.HttpEntityEnclosingRequest; 39 import org.apache.http.HttpException; 40 import org.apache.http.HttpRequest; 41 import org.apache.http.HttpResponse; 42 import org.apache.http.HttpResponseFactory; 43 import org.apache.http.HttpServerConnection; 44 import org.apache.http.HttpStatus; 45 import org.apache.http.HttpVersion; 46 import org.apache.http.MethodNotSupportedException; 47 import org.apache.http.ProtocolException; 48 import org.apache.http.ProtocolVersion; 49 import org.apache.http.UnsupportedHttpVersionException; 50 import org.apache.http.entity.ByteArrayEntity; 51 import org.apache.http.params.HttpParams; 52 import org.apache.http.params.DefaultedHttpParams; 53 import org.apache.http.util.EncodingUtils; 54 55 /** 56 * Minimalistic server-side implementation of an HTTP processor. 57 * 58 * @author <a href="mailto:oleg at ural.ru">Oleg Kalnichevski</a> 59 * 60 * @version $Revision: 610763 $ 61 * 62 * @deprecated Please use {@link java.net.URL#openConnection} instead. 63 * Please visit <a href="http://android-developers.blogspot.com/2011/09/androids-http-clients.html">this webpage</a> 64 * for further details. 65 */ 66 @Deprecated 67 public class HttpService { 68 69 private HttpParams params = null; 70 private HttpProcessor processor = null; 71 private HttpRequestHandlerResolver handlerResolver = null; 72 private ConnectionReuseStrategy connStrategy = null; 73 private HttpResponseFactory responseFactory = null; 74 private HttpExpectationVerifier expectationVerifier = null; 75 76 /** 77 * Create a new HTTP service. 78 * 79 * @param proc the processor to use on requests and responses 80 * @param connStrategy the connection reuse strategy 81 * @param responseFactory the response factory 82 */ 83 public HttpService( 84 final HttpProcessor proc, 85 final ConnectionReuseStrategy connStrategy, 86 final HttpResponseFactory responseFactory) { 87 super(); 88 setHttpProcessor(proc); 89 setConnReuseStrategy(connStrategy); 90 setResponseFactory(responseFactory); 91 } 92 93 public void setHttpProcessor(final HttpProcessor processor) { 94 if (processor == null) { 95 throw new IllegalArgumentException("HTTP processor may not be null."); 96 } 97 this.processor = processor; 98 } 99 100 public void setConnReuseStrategy(final ConnectionReuseStrategy connStrategy) { 101 if (connStrategy == null) { 102 throw new IllegalArgumentException("Connection reuse strategy may not be null"); 103 } 104 this.connStrategy = connStrategy; 105 } 106 107 public void setResponseFactory(final HttpResponseFactory responseFactory) { 108 if (responseFactory == null) { 109 throw new IllegalArgumentException("Response factory may not be null"); 110 } 111 this.responseFactory = responseFactory; 112 } 113 114 public void setHandlerResolver(final HttpRequestHandlerResolver handlerResolver) { 115 this.handlerResolver = handlerResolver; 116 } 117 118 public void setExpectationVerifier(final HttpExpectationVerifier expectationVerifier) { 119 this.expectationVerifier = expectationVerifier; 120 } 121 122 public HttpParams getParams() { 123 return this.params; 124 } 125 126 public void setParams(final HttpParams params) { 127 this.params = params; 128 } 129 130 public void handleRequest( 131 final HttpServerConnection conn, 132 final HttpContext context) throws IOException, HttpException { 133 134 context.setAttribute(ExecutionContext.HTTP_CONNECTION, conn); 135 136 HttpResponse response = null; 137 138 try { 139 140 HttpRequest request = conn.receiveRequestHeader(); 141 request.setParams( 142 new DefaultedHttpParams(request.getParams(), this.params)); 143 144 ProtocolVersion ver = 145 request.getRequestLine().getProtocolVersion(); 146 if (!ver.lessEquals(HttpVersion.HTTP_1_1)) { 147 // Downgrade protocol version if greater than HTTP/1.1 148 ver = HttpVersion.HTTP_1_1; 149 } 150 151 if (request instanceof HttpEntityEnclosingRequest) { 152 153 if (((HttpEntityEnclosingRequest) request).expectContinue()) { 154 response = this.responseFactory.newHttpResponse(ver, 155 HttpStatus.SC_CONTINUE, context); 156 response.setParams( 157 new DefaultedHttpParams(response.getParams(), this.params)); 158 159 if (this.expectationVerifier != null) { 160 try { 161 this.expectationVerifier.verify(request, response, context); 162 } catch (HttpException ex) { 163 response = this.responseFactory.newHttpResponse(HttpVersion.HTTP_1_0, 164 HttpStatus.SC_INTERNAL_SERVER_ERROR, context); 165 response.setParams( 166 new DefaultedHttpParams(response.getParams(), this.params)); 167 handleException(ex, response); 168 } 169 } 170 if (response.getStatusLine().getStatusCode() < 200) { 171 // Send 1xx response indicating the server expections 172 // have been met 173 conn.sendResponseHeader(response); 174 conn.flush(); 175 response = null; 176 conn.receiveRequestEntity((HttpEntityEnclosingRequest) request); 177 } 178 } else { 179 conn.receiveRequestEntity((HttpEntityEnclosingRequest) request); 180 } 181 } 182 183 if (response == null) { 184 response = this.responseFactory.newHttpResponse(ver, HttpStatus.SC_OK, context); 185 response.setParams( 186 new DefaultedHttpParams(response.getParams(), this.params)); 187 188 context.setAttribute(ExecutionContext.HTTP_REQUEST, request); 189 context.setAttribute(ExecutionContext.HTTP_RESPONSE, response); 190 191 this.processor.process(request, context); 192 doService(request, response, context); 193 } 194 195 // Make sure the request content is fully consumed 196 if (request instanceof HttpEntityEnclosingRequest) { 197 HttpEntity entity = ((HttpEntityEnclosingRequest)request).getEntity(); 198 if (entity != null) { 199 entity.consumeContent(); 200 } 201 } 202 203 } catch (HttpException ex) { 204 response = this.responseFactory.newHttpResponse 205 (HttpVersion.HTTP_1_0, HttpStatus.SC_INTERNAL_SERVER_ERROR, 206 context); 207 response.setParams( 208 new DefaultedHttpParams(response.getParams(), this.params)); 209 handleException(ex, response); 210 } 211 212 this.processor.process(response, context); 213 conn.sendResponseHeader(response); 214 conn.sendResponseEntity(response); 215 conn.flush(); 216 217 if (!this.connStrategy.keepAlive(response, context)) { 218 conn.close(); 219 } 220 } 221 222 protected void handleException(final HttpException ex, final HttpResponse response) { 223 if (ex instanceof MethodNotSupportedException) { 224 response.setStatusCode(HttpStatus.SC_NOT_IMPLEMENTED); 225 } else if (ex instanceof UnsupportedHttpVersionException) { 226 response.setStatusCode(HttpStatus.SC_HTTP_VERSION_NOT_SUPPORTED); 227 } else if (ex instanceof ProtocolException) { 228 response.setStatusCode(HttpStatus.SC_BAD_REQUEST); 229 } else { 230 response.setStatusCode(HttpStatus.SC_INTERNAL_SERVER_ERROR); 231 } 232 byte[] msg = EncodingUtils.getAsciiBytes(ex.getMessage()); 233 ByteArrayEntity entity = new ByteArrayEntity(msg); 234 entity.setContentType("text/plain; charset=US-ASCII"); 235 response.setEntity(entity); 236 } 237 238 protected void doService( 239 final HttpRequest request, 240 final HttpResponse response, 241 final HttpContext context) throws HttpException, IOException { 242 HttpRequestHandler handler = null; 243 if (this.handlerResolver != null) { 244 String requestURI = request.getRequestLine().getUri(); 245 handler = this.handlerResolver.lookup(requestURI); 246 } 247 if (handler != null) { 248 handler.handle(request, response, context); 249 } else { 250 response.setStatusCode(HttpStatus.SC_NOT_IMPLEMENTED); 251 } 252 } 253 254 } 255
