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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 io.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 SocksInitRequest
23   * @see SocksAuthRequest
24   * @see SocksCmdRequest
25   * @see UnknownSocksRequest
26   */
27  public abstract class SocksRequest extends SocksMessage {
28      private final SocksRequestType requestType;
29  
30      protected SocksRequest(SocksRequestType requestType) {
31          super(SocksMessageType.REQUEST);
32          if (requestType == null) {
33              throw new NullPointerException("requestType");
34          }
35          this.requestType = requestType;
36      }
37  
38      /**
39       * Returns socks request type
40       *
41       * @return socks request type
42       */
43      public SocksRequestType requestType() {
44          return requestType;
45      }
46  }