/*
    * 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.echo;
  
  import java.net.InetSocketAddress;
  import java.util.concurrent.Executors;
  
  import org.jboss.netty.bootstrap.ServerBootstrap;
  import org.jboss.netty.channel.ChannelPipeline;
  import org.jboss.netty.channel.ChannelPipelineFactory;
  import org.jboss.netty.channel.Channels;
  import org.jboss.netty.channel.socket.nio.NioServerSocketChannelFactory;
  
  /**
   * Echoes back any received data from a client.
   */
  public class EchoServer {
  
      private final int port;
  
      public EchoServer(int port) {
          this.port = port;
      }
  
      public void run() {
          // Configure the server.
          ServerBootstrap bootstrap = new ServerBootstrap(
                  new NioServerSocketChannelFactory(
                          Executors.newCachedThreadPool(),
                          Executors.newCachedThreadPool()));
  
          // Set up the pipeline factory.
          bootstrap.setPipelineFactory(new ChannelPipelineFactory() {
              public ChannelPipeline getPipeline() throws Exception {
                  return Channels.pipeline(new EchoServerHandler());
              }
          });
  
          // Bind and start to accept incoming connections.
          bootstrap.bind(new InetSocketAddress(port));
      }
  
      public static void main(String[] args) throws Exception {
          int port;
          if (args.length > 0) {
              port = Integer.parseInt(args[0]);
          } else {
              port = 8080;
          }
          new EchoServer(port).run();
      }
  }