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1   //
2   //  ========================================================================
3   //  Copyright (c) 1995-2016 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.http;
20  
21  import java.nio.ByteBuffer;
22  
23  import org.eclipse.jetty.util.ArrayTrie;
24  import org.eclipse.jetty.util.BufferUtil;
25  import org.eclipse.jetty.util.Trie;
26  
27  /* ------------------------------------------------------------------------------- */
28  /**
29   */
30  public enum HttpScheme
31  {
32      HTTP("http"),
33      HTTPS("https"),
34      WS("ws"),
35      WSS("wss");
36  
37      /* ------------------------------------------------------------ */
38      public final static Trie<HttpScheme> CACHE= new ArrayTrie<HttpScheme>();
39      static
40      {
41          for (HttpScheme version : HttpScheme.values())
42              CACHE.put(version.asString(),version);
43      }
44  
45      private final String _string;
46      private final ByteBuffer _buffer;
47  
48      /* ------------------------------------------------------------ */
49      HttpScheme(String s)
50      {
51          _string=s;
52          _buffer=BufferUtil.toBuffer(s);
53      }
54  
55      /* ------------------------------------------------------------ */
56      public ByteBuffer asByteBuffer()
57      {
58          return _buffer.asReadOnlyBuffer();
59      }
60  
61      /* ------------------------------------------------------------ */
62      public boolean is(String s)
63      {
64          return s!=null && _string.equalsIgnoreCase(s);
65      }
66  
67      public String asString()
68      {
69          return _string;
70      }
71  
72      /* ------------------------------------------------------------ */
73      @Override
74      public String toString()
75      {
76          return _string;
77      }
78  
79  }