/*
 * Copyright 2009 Red Hat, Inc.
 *
 * Red Hat 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.proxy;

import java.net.InetSocketAddress;
import java.util.concurrent.Executor;
import java.util.concurrent.Executors;

import org.jboss.netty.bootstrap.ServerBootstrap;
import org.jboss.netty.channel.socket.ClientSocketChannelFactory;
import org.jboss.netty.channel.socket.nio.NioClientSocketChannelFactory;
import org.jboss.netty.channel.socket.nio.NioServerSocketChannelFactory;

/**
 * @author <a href="http://www.jboss.org/netty/">The Netty Project</a>
 * @author <a href="http://gleamynode.net/">Trustin Lee</a>
 * @version $Rev: 2080 $, $Date: 2010-01-26 18:04:19 +0900 (Tue, 26 Jan 2010) $
 */
public class HexDumpProxy {

    public static void main(String[] args) throws Exception {
        // Validate command line options.
        if (args.length != 3) {
            System.err.println(
                    "Usage: " + HexDumpProxy.class.getSimpleName() +
                    " <local port> <remote host> <remote port>");
            return;
        }

        // Parse command line options.
        int localPort = Integer.parseInt(args[0]);
        String remoteHost = args[1];
        int remotePort = Integer.parseInt(args[2]);

        System.err.println(
                "Proxying *:" + localPort + " to " +
                remoteHost + ':' + remotePort + " ...");

        // Configure the bootstrap.
        Executor executor = Executors.newCachedThreadPool();
        ServerBootstrap sb = new ServerBootstrap(
                new NioServerSocketChannelFactory(executor, executor));

        // Set up the event pipeline factory.
        ClientSocketChannelFactory cf =
                new NioClientSocketChannelFactory(executor, executor);

        sb.setPipelineFactory(
                new HexDumpProxyPipelineFactory(cf, remoteHost, remotePort));

        // Start up the server.
        sb.bind(new InetSocketAddress(localPort));
    }
}