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1   //
2   //  ========================================================================
3   //  Copyright (c) 1995-2013 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.api;
20  
21  import java.util.HashMap;
22  import java.util.Map;
23  
24  /**
25   * <p>An enumeration of session statuses.</p>
26   */
27  public enum SessionStatus
28  {
29      /**
30       * <p>The session status indicating no errors</p>
31       */
32      OK(0),
33      /**
34       * <p>The session status indicating a protocol error</p>
35       */
36      PROTOCOL_ERROR(1);
37  
38      /**
39       * @param code the session status code
40       * @return a {@link SessionStatus} from the given code,
41       * or null if no status exists
42       */
43      public static SessionStatus from(int code)
44      {
45          return Codes.codes.get(code);
46      }
47  
48      private final int code;
49  
50      private SessionStatus(int code)
51      {
52          this.code = code;
53          Codes.codes.put(code, this);
54      }
55  
56      /**
57       * @return the code of this {@link SessionStatus}
58       */
59      public int getCode()
60      {
61          return code;
62      }
63  
64      private static class Codes
65      {
66          private static final Map<Integer, SessionStatus> codes = new HashMap<>();
67      }
68  }