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/impl/AbstractHttpServerConnection.java $ 3069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * $Revision: 618017 $ 4069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * $Date: 2008-02-03 08:42:22 -0800 (Sun, 03 Feb 2008) $ 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.impl; 33069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 34069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport java.io.IOException; 35069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 36069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.HttpConnectionMetrics; 37069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.HttpEntity; 38069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.HttpEntityEnclosingRequest; 39069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.HttpException; 40069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.HttpRequest; 41069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.HttpRequestFactory; 42069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.HttpResponse; 43069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.HttpServerConnection; 44069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.impl.entity.EntityDeserializer; 45069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.impl.entity.EntitySerializer; 46069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.impl.entity.LaxContentLengthStrategy; 47069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.impl.entity.StrictContentLengthStrategy; 48069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.impl.io.HttpRequestParser; 49069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.impl.io.HttpResponseWriter; 50069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.io.HttpMessageParser; 51069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.io.HttpMessageWriter; 52069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.io.SessionInputBuffer; 53069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.io.SessionOutputBuffer; 54069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectimport org.apache.http.params.HttpParams; 55069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 56069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project/** 57069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * Abstract server-side HTTP connection capable of transmitting and receiving data 58069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * using arbitrary {@link SessionInputBuffer} and {@link SessionOutputBuffer} 59069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 60069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * @author <a href="mailto:oleg at ural.ru">Oleg Kalnichevski</a> 61069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 62069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * @version $Revision: 618017 $ 63069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * 64069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project * @since 4.0 65069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project */ 66069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Projectpublic abstract class AbstractHttpServerConnection implements HttpServerConnection { 67069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 68069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project private final EntitySerializer entityserializer; 69069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project private final EntityDeserializer entitydeserializer; 70069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 71069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project private SessionInputBuffer inbuffer = null; 72069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project private SessionOutputBuffer outbuffer = null; 73069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project private HttpMessageParser requestParser = null; 74069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project private HttpMessageWriter responseWriter = null; 75069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project private HttpConnectionMetricsImpl metrics = null; 76069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 77069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 78069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 79069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project public AbstractHttpServerConnection() { 80069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project super(); 81069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.entityserializer = createEntitySerializer(); 82069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.entitydeserializer = createEntityDeserializer(); 83069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 84069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 85069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project protected abstract void assertOpen() throws IllegalStateException; 86069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 87069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project protected EntityDeserializer createEntityDeserializer() { 88069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return new EntityDeserializer(new LaxContentLengthStrategy()); 89069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 90069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 91069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project protected EntitySerializer createEntitySerializer() { 92069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return new EntitySerializer(new StrictContentLengthStrategy()); 93069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 94069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 95069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project protected HttpRequestFactory createHttpRequestFactory() { 96069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return new DefaultHttpRequestFactory(); 97069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 98069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 99069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project protected HttpMessageParser createRequestParser( 100069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project final SessionInputBuffer buffer, 101069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project final HttpRequestFactory requestFactory, 102069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project final HttpParams params) { 103069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project // override in derived class to specify a line parser 104069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return new HttpRequestParser(buffer, null, requestFactory, params); 105069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 106069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 107069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project protected HttpMessageWriter createResponseWriter( 108069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project final SessionOutputBuffer buffer, 109069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project final HttpParams params) { 110069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project // override in derived class to specify a line formatter 111069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return new HttpResponseWriter(buffer, null, params); 112069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 113069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 114069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 115069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project protected void init( 116069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project final SessionInputBuffer inbuffer, 117069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project final SessionOutputBuffer outbuffer, 118069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project final HttpParams params) { 119069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (inbuffer == null) { 120069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project throw new IllegalArgumentException("Input session buffer may not be null"); 121069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 122069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (outbuffer == null) { 123069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project throw new IllegalArgumentException("Output session buffer may not be null"); 124069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 125069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.inbuffer = inbuffer; 126069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.outbuffer = outbuffer; 127069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.requestParser = createRequestParser( 128069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project inbuffer, 129069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project createHttpRequestFactory(), 130069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project params); 131069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.responseWriter = createResponseWriter( 132069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project outbuffer, params); 133069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.metrics = new HttpConnectionMetricsImpl( 134069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project inbuffer.getMetrics(), 135069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project outbuffer.getMetrics()); 136069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 137069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 138069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project public HttpRequest receiveRequestHeader() 139069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project throws HttpException, IOException { 140069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project assertOpen(); 141069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project HttpRequest request = (HttpRequest) this.requestParser.parse(); 142069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.metrics.incrementRequestCount(); 143069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return request; 144069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 145069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 146069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project public void receiveRequestEntity(final HttpEntityEnclosingRequest request) 147069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project throws HttpException, IOException { 148069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (request == null) { 149069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project throw new IllegalArgumentException("HTTP request may not be null"); 150069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 151069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project assertOpen(); 152069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project HttpEntity entity = this.entitydeserializer.deserialize(this.inbuffer, request); 153069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project request.setEntity(entity); 154069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 155069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 156069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project protected void doFlush() throws IOException { 157069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.outbuffer.flush(); 158069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 159069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 160069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project public void flush() throws IOException { 161069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project assertOpen(); 162069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project doFlush(); 163069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 164069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 165069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project public void sendResponseHeader(final HttpResponse response) 166069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project throws HttpException, IOException { 167069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (response == null) { 168069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project throw new IllegalArgumentException("HTTP response may not be null"); 169069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 170069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project assertOpen(); 171069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.responseWriter.write(response); 172069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (response.getStatusLine().getStatusCode() >= 200) { 173069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.metrics.incrementResponseCount(); 174069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 175069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 176069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 177069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project public void sendResponseEntity(final HttpResponse response) 178069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project throws HttpException, IOException { 179069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project if (response.getEntity() == null) { 180069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return; 181069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 182069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.entityserializer.serialize( 183069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.outbuffer, 184069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project response, 185069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project response.getEntity()); 186069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 187069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 188069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project public boolean isStale() { 189069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project assertOpen(); 190069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project try { 191069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project this.inbuffer.isDataAvailable(1); 192069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return false; 193069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } catch (IOException ex) { 194069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return true; 195069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 196069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 197069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 198069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project public HttpConnectionMetrics getMetrics() { 199069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project return this.metrics; 200069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project } 201069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project 202069490a5ca2fd1988d29daf45d892f47ad665115The Android Open Source Project} 203