1 /*
2 * Copyright 2012 The Netty Project
3 *
4 * The Netty Project licenses this file to you under the Apache License,
5 * version 2.0 (the "License"); you may not use this file except in compliance
6 * with the License. You may obtain a copy of the License at:
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13 * License for the specific language governing permissions and limitations
14 * under the License.
15 */
16 package org.jboss.netty.handler.codec.http;
17
18 import org.jboss.netty.buffer.ChannelBuffer;
19
20 import static org.jboss.netty.handler.codec.http.HttpConstants.*;
21
22 /**
23 * Encodes an {@link HttpRequest} or an {@link HttpChunk} into
24 * a {@link ChannelBuffer}.
25 */
26 public class HttpRequestEncoder extends HttpMessageEncoder {
27 private static final char SLASH = '/';
28
29 @Override
30 protected void encodeInitialLine(ChannelBuffer buf, HttpMessage message) throws Exception {
31 HttpRequest request = (HttpRequest) message;
32 buf.writeBytes(request.getMethod().toString().getBytes("ASCII"));
33 buf.writeByte(SP);
34
35 // Add / as absolute path if no is present.
36 // See http://tools.ietf.org/html/rfc2616#section-5.1.2
37 String uri = request.getUri();
38 int start = uri.indexOf("://");
39 if (start != -1) {
40 int startIndex = start + 3;
41 if (uri.lastIndexOf(SLASH) <= startIndex) {
42 uri += SLASH;
43 }
44 }
45
46 buf.writeBytes(uri.getBytes("UTF-8"));
47 buf.writeByte(SP);
48 buf.writeBytes(request.getProtocolVersion().toString().getBytes("ASCII"));
49 buf.writeByte(CR);
50 buf.writeByte(LF);
51 }
52 }