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1   /*
2    * Copyright 2012 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  package org.jboss.netty.handler.codec.socks;
17  
18  /**
19   * An abstract class that defines a SocksRequest, providing common properties for
20   * {@link SocksInitRequest}, {@link SocksAuthRequest}, {@link SocksCmdRequest} and {@link UnknownSocksRequest}.
21   *
22   * @see {@link SocksInitRequest}
23   * @see {@link SocksAuthRequest}
24   * @see {@link SocksCmdRequest}
25   * @see {@link UnknownSocksRequest}
26   */
27  public abstract class SocksRequest extends SocksMessage {
28      private final SocksRequestType socksRequestType;
29  
30      protected SocksRequest(SocksRequestType socksRequestType) {
31          super(MessageType.REQUEST);
32          if (socksRequestType == null) {
33              throw new NullPointerException("socksRequestType");
34          }
35          this.socksRequestType = socksRequestType;
36      }
37  
38      /**
39       * Returns socks request type
40       *
41       * @return socks request type
42       */
43      public SocksRequestType getSocksRequestType() {
44          return socksRequestType;
45      }
46  
47      /**
48       * Type of socks request
49       */
50      public enum SocksRequestType {
51          INIT,
52          AUTH,
53          CMD,
54          UNKNOWN
55      }
56  }