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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.example.socksproxy;
17  
18  import io.netty.channel.Channel;
19  import io.netty.channel.ChannelHandlerAdapter;
20  import io.netty.channel.ChannelHandlerContext;
21  import io.netty.util.concurrent.Promise;
22  
23  
24  public final class DirectClientHandler extends ChannelHandlerAdapter {
25  
26      private final Promise<Channel> promise;
27  
28      public DirectClientHandler(Promise<Channel> promise) {
29          this.promise = promise;
30      }
31  
32      @Override
33      public void channelActive(ChannelHandlerContext ctx) {
34          ctx.pipeline().remove(this);
35          promise.setSuccess(ctx.channel());
36      }
37  
38      @Override
39      public void exceptionCaught(ChannelHandlerContext ctx, Throwable throwable) {
40          promise.setFailure(throwable);
41      }
42  }