1 /* 2 * $HeadURL: http://svn.apache.org/repos/asf/httpcomponents/httpcore/trunk/module-main/src/main/java/org/apache/http/impl/io/HttpResponseParser.java $ 3 * $Revision: 589374 $ 4 * $Date: 2007-10-28 09:25:07 -0700 (Sun, 28 Oct 2007) $ 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.io; 33 34 import java.io.IOException; 35 36 import org.apache.http.HttpException; 37 import org.apache.http.HttpMessage; 38 import org.apache.http.HttpResponseFactory; 39 import org.apache.http.NoHttpResponseException; 40 import org.apache.http.StatusLine; 41 import org.apache.http.ParseException; 42 import org.apache.http.io.SessionInputBuffer; 43 import org.apache.http.message.LineParser; 44 import org.apache.http.message.ParserCursor; 45 import org.apache.http.params.HttpParams; 46 import org.apache.http.util.CharArrayBuffer; 47 48 public class HttpResponseParser extends AbstractMessageParser { 49 50 private final HttpResponseFactory responseFactory; 51 private final CharArrayBuffer lineBuf; 52 53 public HttpResponseParser( 54 final SessionInputBuffer buffer, 55 final LineParser parser, 56 final HttpResponseFactory responseFactory, 57 final HttpParams params) { 58 super(buffer, parser, params); 59 if (responseFactory == null) { 60 throw new IllegalArgumentException("Response factory may not be null"); 61 } 62 this.responseFactory = responseFactory; 63 this.lineBuf = new CharArrayBuffer(128); 64 } 65 66 protected HttpMessage parseHead( 67 final SessionInputBuffer sessionBuffer) 68 throws IOException, HttpException, ParseException { 69 70 this.lineBuf.clear(); 71 int i = sessionBuffer.readLine(this.lineBuf); 72 if (i == -1) { 73 throw new NoHttpResponseException("The target server failed to respond"); 74 } 75 //create the status line from the status string 76 ParserCursor cursor = new ParserCursor(0, this.lineBuf.length()); 77 StatusLine statusline = lineParser.parseStatusLine(this.lineBuf, cursor); 78 return this.responseFactory.newHttpResponse(statusline, null); 79 } 80 81 } 82
