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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  import org.jboss.netty.buffer.ChannelBuffer;
19  
20  /**
21   * An socks init response.
22   *
23   * @see {@link SocksInitRequest}
24   * @see {@link SocksInitResponseDecoder}
25   */
26  public final class SocksInitResponse extends SocksResponse {
27      private final AuthScheme authScheme;
28  
29      public SocksInitResponse(AuthScheme authScheme) {
30          super(SocksResponseType.INIT);
31          if (authScheme == null) {
32              throw new NullPointerException("authScheme");
33          }
34          this.authScheme = authScheme;
35      }
36  
37      /**
38       * Returns the {@link AuthScheme} of this {@link SocksInitResponse}
39       */
40      public AuthScheme getAuthScheme() {
41          return authScheme;
42      }
43  
44      @Override
45      public void encodeAsByteBuf(ChannelBuffer channelBuffer) {
46          channelBuffer.writeByte(getProtocolVersion().getByteValue());
47          channelBuffer.writeByte(authScheme.getByteValue());
48      }
49  }