/*
    * Copyright 2012 The Netty Project
    *
    * The Netty Project licenses this file to you under the Apache License,
    * version 2.0 (the "License"); you may not use this file except in compliance
    * with the License. You may obtain a copy of the License at:
    *
    *   http://www.apache.org/licenses/LICENSE-2.0
    *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
   * License for the specific language governing permissions and limitations
   * under the License.
   */
  package org.jboss.netty.example.telnet;
  
  import org.jboss.netty.bootstrap.ServerBootstrap;
  import org.jboss.netty.channel.socket.nio.NioServerSocketChannelFactory;
  import org.jboss.netty.handler.ssl.SslContext;
  import org.jboss.netty.handler.ssl.util.SelfSignedCertificate;
  
  import java.net.InetSocketAddress;
  import java.util.concurrent.Executors;
  
  /**
   * Simplistic telnet server.
   */
  public final class TelnetServer {
  
      static final boolean SSL = System.getProperty("ssl") != null;
      static final int PORT = Integer.parseInt(System.getProperty("port", SSL? "8992" : "8023"));
  
      public static void main(String[] args) throws Exception {
          // Configure SSL.
          final SslContext sslCtx;
          if (SSL) {
              SelfSignedCertificate ssc = new SelfSignedCertificate();
              sslCtx = SslContext.newServerContext(ssc.certificate(), ssc.privateKey());
          } else {
              sslCtx = null;
          }
  
          // Configure the server.
          ServerBootstrap bootstrap = new ServerBootstrap(
                  new NioServerSocketChannelFactory(
                          Executors.newCachedThreadPool(),
                          Executors.newCachedThreadPool()));
  
          // Configure the pipeline factory.
          bootstrap.setPipelineFactory(new TelnetServerPipelineFactory(sslCtx));
  
          // Bind and start to accept incoming connections.
          bootstrap.bind(new InetSocketAddress(PORT));
      }
  }