netty5/src/main/java/org/jboss/netty/example/proxy/HexDumpProxy.java
Trustin Lee ba28679775 Clean up the examples
Motivation:

The examples have not been updated since long time ago, showing various
issues fixed in this commit.

Modifications:

- Overall simplification to reduce LoC
  - Use system properties to get options instead of parsing args.
  - Minimize option validation
  - Just use System.out/err instead of Logger
  - Do not pass config as parameters - just access it directly
  - Move the main logic to main(String[]) instead of creating a new
    instance meaninglessly
    - Update netty-build-21 to make checkstyle not complain
  - Remove 'throws Exception' clause if possible
- Line wrap at 120 (previously at 80)
- Add an option to enable SSL for most examples
- Use ChannelFuture.sync() instead of await()
- Use System.out for the actual result. Use System.err otherwise.
- Delete examples that are not very useful:
  - websocket/html5
  - websocketx/sslserver
  - localecho/multithreaded
- Add run-example.sh which simplifies launching an example from command
  line

Result:

Shorter and simpler examples.  A user can focus more on what it actually
does than miscellaneous stuff.  A user can launch an example very
easily.
2014-05-22 17:52:23 +09:00

49 lines
2.0 KiB
Java

/*
* 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.proxy;
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;
import java.net.InetSocketAddress;
import java.util.concurrent.Executor;
import java.util.concurrent.Executors;
public final class HexDumpProxy {
static final int LOCAL_PORT = Integer.parseInt(System.getProperty("localPort", "8443"));
static final String REMOTE_HOST = System.getProperty("remoteHost", "www.google.com");
static final int REMOTE_PORT = Integer.parseInt(System.getProperty("remotePort", "443"));
public static void main(String[] args) {
System.err.println("Proxying *:" + LOCAL_PORT + " to " + REMOTE_HOST + ':' + REMOTE_PORT + " ...");
// 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));
// Start up the server.
sb.bind(new InetSocketAddress(LOCAL_PORT));
}
}