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1   /*
2    * Copyright 2013 The Netty Project
3    *
4    * The Netty Project licenses this file to you under the Apache License,
5    * version 2.0 (the "License"); you may not use this file except in compliance
6    * with the License. You may obtain a copy of the License at:
7    *
8    *   http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13   * License for the specific language governing permissions and limitations
14   * under the License.
15   */
16  
17  package io.netty.handler.codec.socks;
18  
19  public enum SocksProtocolVersion {
20      SOCKS4a((byte) 0x04),
21      SOCKS5((byte) 0x05),
22      UNKNOWN((byte) 0xff);
23  
24      private final byte b;
25  
26      SocksProtocolVersion(byte b) {
27          this.b = b;
28      }
29  
30      /**
31       * @deprecated Use {@link #valueOf(byte)} instead.
32       */
33      @Deprecated
34      public static SocksProtocolVersion fromByte(byte b) {
35          return valueOf(b);
36      }
37  
38      public static SocksProtocolVersion valueOf(byte b) {
39          for (SocksProtocolVersion code : values()) {
40              if (code.b == b) {
41                  return code;
42              }
43          }
44          return UNKNOWN;
45      }
46  
47      public byte byteValue() {
48          return b;
49      }
50  }