App.java

/*
 * Copyright 2013 by Maxim Kalina
 *
 *    Licensed 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 net.javaforge.netty;

import com.vaadin.server.VaadinServlet;
import net.javaforge.netty.servlet.bridge.ServletBridgeChannelPipelineFactory;
import net.javaforge.netty.servlet.bridge.config.ServletConfiguration;
import net.javaforge.netty.servlet.bridge.config.WebappConfiguration;
import net.javaforge.netty.vaadin.AddressbookUI;
import org.jboss.netty.bootstrap.ServerBootstrap;
import org.jboss.netty.channel.Channel;
import org.jboss.netty.channel.socket.nio.NioServerSocketChannelFactory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

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

public class App {

    private static final Logger log = LoggerFactory.getLogger(App.class);

    public static void main(String[] args) {

        long start = System.currentTimeMillis();

        // Configure the server.
        final ServerBootstrap bootstrap = new ServerBootstrap(
                new NioServerSocketChannelFactory(Executors
                        .newCachedThreadPool(), Executors.newCachedThreadPool()));

        WebappConfiguration webapp = new WebappConfiguration();
        webapp.addServletConfigurations(new ServletConfiguration(
                VaadinServlet.class, "/*").addInitParameter("UI",
                AddressbookUI.class.getName()));

        // Set up the event pipeline factory.
        final ServletBridgeChannelPipelineFactory servletBridge = new ServletBridgeChannelPipelineFactory(
                webapp);
        bootstrap.setPipelineFactory(servletBridge);

        // Bind and start to accept incoming connections.
        final Channel serverChannel = bootstrap
                .bind(new InetSocketAddress(8080));

        long end = System.currentTimeMillis();
        log.info(">>> Server started in {} ms .... <<< ", (end - start));

        Runtime.getRuntime().addShutdownHook(new Thread() {

            @Override
            public void run() {
                servletBridge.shutdown();
                serverChannel.close().awaitUninterruptibly();
                bootstrap.releaseExternalResources();
            }
        });

    }
}