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15 package org.mortbay.jetty;
16
17 import java.io.InputStream;
18 import java.io.InputStreamReader;
19 import java.io.LineNumberReader;
20
21 import org.mortbay.io.Buffer;
22 import org.mortbay.io.BufferCache;
23 import org.mortbay.io.ByteArrayBuffer;
24 import org.mortbay.log.Log;
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34 public class HttpHeaderValues extends BufferCache
35 {
36 public final static String
37 CLOSE="close",
38 CHUNKED="chunked",
39 GZIP="gzip",
40 IDENTITY="identity",
41 KEEP_ALIVE="keep-alive",
42 CONTINUE="100-continue",
43 PROCESSING="102-processing",
44 TE="TE",
45 BYTES="bytes",
46 NO_CACHE="no-cache";
47
48 public final static int
49 CLOSE_ORDINAL=1,
50 CHUNKED_ORDINAL=2,
51 GZIP_ORDINAL=3,
52 IDENTITY_ORDINAL=4,
53 KEEP_ALIVE_ORDINAL=5,
54 CONTINUE_ORDINAL=6,
55 PROCESSING_ORDINAL=7,
56 TE_ORDINAL=8,
57 BYTES_ORDINAL=9,
58 NO_CACHE_ORDINAL=10;
59
60 public final static HttpHeaderValues CACHE= new HttpHeaderValues();
61
62 public final static Buffer
63 CLOSE_BUFFER=CACHE.add(CLOSE,CLOSE_ORDINAL),
64 CHUNKED_BUFFER=CACHE.add(CHUNKED,CHUNKED_ORDINAL),
65 GZIP_BUFFER=CACHE.add(GZIP,GZIP_ORDINAL),
66 IDENTITY_BUFFER=CACHE.add(IDENTITY,IDENTITY_ORDINAL),
67 KEEP_ALIVE_BUFFER=CACHE.add(KEEP_ALIVE,KEEP_ALIVE_ORDINAL),
68 CONTINUE_BUFFER=CACHE.add(CONTINUE, CONTINUE_ORDINAL),
69 PROCESSING_BUFFER=CACHE.add(PROCESSING, PROCESSING_ORDINAL),
70 TE_BUFFER=CACHE.add(TE,TE_ORDINAL),
71 BYTES_BUFFER=CACHE.add(BYTES,BYTES_ORDINAL),
72 NO_CACHE_BUFFER=CACHE.add(NO_CACHE,NO_CACHE_ORDINAL);
73
74 static
75 {
76 int index=100;
77 CACHE.add("gzip",index++);
78 CACHE.add("gzip,deflate",index++);
79 CACHE.add("deflate",index++);
80
81 try
82 {
83 InputStream ua = HttpHeaderValues.class.getResourceAsStream("/org/mortbay/jetty/useragents");
84 if (ua!=null)
85 {
86 LineNumberReader in = new LineNumberReader(new InputStreamReader(ua));
87 String line = in.readLine();
88 while (line!=null)
89 {
90 CACHE.add(line,index++);
91 line = in.readLine();
92 }
93 }
94 }
95 catch(Exception e)
96 {
97 e.printStackTrace();
98 Log.ignore(e);
99 }
100 }
101 }