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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.http.websocketx.server;
17  
18  import io.netty.channel.ChannelInitializer;
19  import io.netty.channel.ChannelPipeline;
20  import io.netty.channel.socket.SocketChannel;
21  import io.netty.handler.codec.http.HttpObjectAggregator;
22  import io.netty.handler.codec.http.HttpServerCodec;
23  import io.netty.handler.codec.http.websocketx.WebSocketServerProtocolHandler;
24  import io.netty.handler.ssl.SslContext;
25  
26  /**
27   */
28  public class WebSocketServerInitializer extends ChannelInitializer<SocketChannel> {
29  
30      private static final String WEBSOCKET_PATH = "/websocket";
31  
32      private final SslContext sslCtx;
33  
34      public WebSocketServerInitializer(SslContext sslCtx) {
35          this.sslCtx = sslCtx;
36      }
37  
38      @Override
39      public void initChannel(SocketChannel ch) throws Exception {
40          ChannelPipeline pipeline = ch.pipeline();
41          if (sslCtx != null) {
42              pipeline.addLast(sslCtx.newHandler(ch.alloc()));
43          }
44          pipeline.addLast(new HttpServerCodec());
45          pipeline.addLast(new HttpObjectAggregator(65536));
46          pipeline.addLast(new WebSocketServerProtocolHandler(WEBSOCKET_PATH, null, true));
47          pipeline.addLast(new WebSocketIndexPageHandler(WEBSOCKET_PATH));
48          pipeline.addLast(new WebSocketFrameHandler());
49      }
50  }