01: /*
02: * $HeadURL: https://svn.apache.org/repos/asf/httpcomponents/httpcore/tags/4.0-beta1/module-main/src/main/java/org/apache/http/impl/io/HttpRequestParser.java $
03: * $Revision: 589374 $
04: * $Date: 2007-10-28 17:25:07 +0100 (Sun, 28 Oct 2007) $
05: *
06: * ====================================================================
07: * Licensed to the Apache Software Foundation (ASF) under one
08: * or more contributor license agreements. See the NOTICE file
09: * 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.ConnectionClosedException;
37: import org.apache.http.HttpException;
38: import org.apache.http.HttpMessage;
39: import org.apache.http.HttpRequestFactory;
40: import org.apache.http.RequestLine;
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 HttpRequestParser extends AbstractMessageParser {
49:
50: private final HttpRequestFactory requestFactory;
51: private final CharArrayBuffer lineBuf;
52:
53: public HttpRequestParser(final SessionInputBuffer buffer,
54: final LineParser parser,
55: final HttpRequestFactory requestFactory,
56: final HttpParams params) {
57: super (buffer, parser, params);
58: if (requestFactory == null) {
59: throw new IllegalArgumentException(
60: "Request factory may not be null");
61: }
62: this .requestFactory = requestFactory;
63: this .lineBuf = new CharArrayBuffer(128);
64: }
65:
66: protected HttpMessage parseHead(
67: final SessionInputBuffer sessionBuffer) throws IOException,
68: HttpException, ParseException {
69:
70: this .lineBuf.clear();
71: int i = sessionBuffer.readLine(this .lineBuf);
72: if (i == -1) {
73: throw new ConnectionClosedException(
74: "Client closed connection");
75: }
76: ParserCursor cursor = new ParserCursor(0, this .lineBuf.length());
77: RequestLine requestline = this.lineParser.parseRequestLine(
78: this.lineBuf, cursor);
79: return this.requestFactory.newHttpRequest(requestline);
80: }
81:
82: }
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