1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
|
//
// ========================================================================
// Copyright (c) 1995-2013 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
//
// The Eclipse Public License is available at
// http://www.eclipse.org/legal/epl-v10.html
//
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
//
// You may elect to redistribute this code under either of these licenses.
// ========================================================================
//
package org.eclipse.jetty.http;
import org.eclipse.jetty.io.Buffer;
import org.eclipse.jetty.io.BufferCache;
import org.eclipse.jetty.io.ByteArrayBuffer;
/**
* Cached HTTP Header values.
* This class caches the conversion of common HTTP Header values to and from {@link ByteArrayBuffer} instances.
* The resource "/org/eclipse/jetty/useragents" is checked for a list of common user agents, so that repeated
* creation of strings for these agents can be avoided.
*
*
*/
public class HttpHeaderValues extends BufferCache
{
public final static String
CLOSE="close",
CHUNKED="chunked",
GZIP="gzip",
IDENTITY="identity",
KEEP_ALIVE="keep-alive",
CONTINUE="100-continue",
PROCESSING="102-processing",
TE="TE",
BYTES="bytes",
NO_CACHE="no-cache",
UPGRADE="Upgrade";
public final static int
CLOSE_ORDINAL=1,
CHUNKED_ORDINAL=2,
GZIP_ORDINAL=3,
IDENTITY_ORDINAL=4,
KEEP_ALIVE_ORDINAL=5,
CONTINUE_ORDINAL=6,
PROCESSING_ORDINAL=7,
TE_ORDINAL=8,
BYTES_ORDINAL=9,
NO_CACHE_ORDINAL=10,
UPGRADE_ORDINAL=11;
public final static HttpHeaderValues CACHE= new HttpHeaderValues();
public final static Buffer
CLOSE_BUFFER=CACHE.add(CLOSE,CLOSE_ORDINAL),
CHUNKED_BUFFER=CACHE.add(CHUNKED,CHUNKED_ORDINAL),
GZIP_BUFFER=CACHE.add(GZIP,GZIP_ORDINAL),
IDENTITY_BUFFER=CACHE.add(IDENTITY,IDENTITY_ORDINAL),
KEEP_ALIVE_BUFFER=CACHE.add(KEEP_ALIVE,KEEP_ALIVE_ORDINAL),
CONTINUE_BUFFER=CACHE.add(CONTINUE, CONTINUE_ORDINAL),
PROCESSING_BUFFER=CACHE.add(PROCESSING, PROCESSING_ORDINAL),
TE_BUFFER=CACHE.add(TE,TE_ORDINAL),
BYTES_BUFFER=CACHE.add(BYTES,BYTES_ORDINAL),
NO_CACHE_BUFFER=CACHE.add(NO_CACHE,NO_CACHE_ORDINAL),
UPGRADE_BUFFER=CACHE.add(UPGRADE,UPGRADE_ORDINAL);
public static boolean hasKnownValues(int httpHeaderOrdinal)
{
switch(httpHeaderOrdinal)
{
case HttpHeaders.CONNECTION_ORDINAL:
case HttpHeaders.TRANSFER_ENCODING_ORDINAL:
case HttpHeaders.CONTENT_ENCODING_ORDINAL:
return true;
}
return false;
}
}
|
