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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.example.factorial;
17  
18  import org.jboss.netty.bootstrap.ServerBootstrap;
19  import org.jboss.netty.channel.socket.nio.NioServerSocketChannelFactory;
20  import org.jboss.netty.handler.ssl.SslContext;
21  import org.jboss.netty.handler.ssl.util.SelfSignedCertificate;
22  
23  import java.net.InetSocketAddress;
24  import java.util.concurrent.Executors;
25  
26  /**
27   * Receives a sequence of integers from a {@link FactorialClient} to calculate
28   * the factorial of the specified integer.
29   */
30  public final class FactorialServer {
31  
32      static final boolean SSL = System.getProperty("ssl") != null;
33      static final int PORT = Integer.parseInt(System.getProperty("port", "8322"));
34  
35      public static void main(String[] args) throws Exception {
36          // Configure SSL.
37          final SslContext sslCtx;
38          if (SSL) {
39              SelfSignedCertificate ssc = new SelfSignedCertificate();
40              sslCtx = SslContext.newServerContext(ssc.certificate(), ssc.privateKey());
41          } else {
42              sslCtx = null;
43          }
44  
45          // Configure the server.
46          ServerBootstrap bootstrap = new ServerBootstrap(
47                  new NioServerSocketChannelFactory(
48                          Executors.newCachedThreadPool(),
49                          Executors.newCachedThreadPool()));
50  
51          // Set up the event pipeline factory.
52          bootstrap.setPipelineFactory(new FactorialServerPipelineFactory(sslCtx));
53  
54          // Bind and start to accept incoming connections.
55          bootstrap.bind(new InetSocketAddress(PORT));
56      }
57  }