1 //
2 // ========================================================================
3 // Copyright (c) 1995-2015 Mort Bay Consulting Pty. Ltd.
4 // ------------------------------------------------------------------------
5 // All rights reserved. This program and the accompanying materials
6 // are made available under the terms of the Eclipse Public License v1.0
7 // and Apache License v2.0 which accompanies this distribution.
8 //
9 // The Eclipse Public License is available at
10 // http://www.eclipse.org/legal/epl-v10.html
11 //
12 // The Apache License v2.0 is available at
13 // http://www.opensource.org/licenses/apache2.0.php
14 //
15 // You may elect to redistribute this code under either of these licenses.
16 // ========================================================================
17 //
18
19 package org.eclipse.jetty.spdy.http;
20
21 import java.util.HashMap;
22 import java.util.Map;
23
24 import org.eclipse.jetty.spdy.api.SPDY;
25
26 /**
27 * <p>{@link HTTPSPDYHeader} defines the SPDY headers that are not also HTTP headers,
28 * such as <tt>method</tt>, <tt>version</tt>, etc. or that are treated differently
29 * by the SPDY protocol, such as <tt>host</tt>.</p>
30 */
31 public enum HTTPSPDYHeader
32 {
33 METHOD("method", ":method"),
34 URI("url", ":path"),
35 VERSION("version", ":version"),
36 SCHEME("scheme", ":scheme"),
37 HOST("host", ":host"),
38 STATUS("status", ":status");
39
40 public static HTTPSPDYHeader from(short version, String name)
41 {
42 switch (version)
43 {
44 case SPDY.V2:
45 return Names.v2Names.get(name);
46 case SPDY.V3:
47 return Names.v3Names.get(name);
48 default:
49 throw new IllegalStateException();
50 }
51 }
52
53 private final String v2Name;
54 private final String v3Name;
55
56 private HTTPSPDYHeader(String v2Name, String v3Name)
57 {
58 this.v2Name = v2Name;
59 Names.v2Names.put(v2Name, this);
60 this.v3Name = v3Name;
61 Names.v3Names.put(v3Name, this);
62 }
63
64 public String name(short version)
65 {
66 switch (version)
67 {
68 case SPDY.V2:
69 return v2Name;
70 case SPDY.V3:
71 return v3Name;
72 default:
73 throw new IllegalStateException();
74 }
75 }
76
77 private static class Names
78 {
79 private static final Map<String, HTTPSPDYHeader> v2Names = new HashMap<>();
80 private static final Map<String, HTTPSPDYHeader> v3Names = new HashMap<>();
81 }
82 }