/*
 * 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 io.netty.testsuite.autobahn;

import io.netty.bootstrap.ServerBootstrap;
import io.netty.buffer.PooledByteBufAllocator;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.MultithreadEventLoopGroup;
import io.netty.channel.nio.NioHandler;
import io.netty.channel.socket.nio.NioServerSocketChannel;

/**
 * A Web Socket echo server for running the
 * <a href="http://autobahn.ws/testsuite/">autobahn test suite</a>
 */
public class AutobahnServer {

    private final int port;

    public AutobahnServer(int port) {
        this.port = port;
    }

    public void run() throws Exception {
        EventLoopGroup bossGroup = new MultithreadEventLoopGroup(1, NioHandler.newFactory());
        EventLoopGroup workerGroup = new MultithreadEventLoopGroup(NioHandler.newFactory());
        try {
            ServerBootstrap b = new ServerBootstrap();
            b.group(bossGroup, workerGroup)
             .channel(NioServerSocketChannel.class)
             .childOption(ChannelOption.ALLOCATOR, PooledByteBufAllocator.DEFAULT)
             .childHandler(new AutobahnServerInitializer());

            ChannelFuture f = b.bind(port).sync();
            System.out.println("Web Socket Server started at port " + port);
            f.channel().closeFuture().sync();
        } finally {
            bossGroup.shutdownGracefully();
            workerGroup.shutdownGracefully();
        }
    }

    public static void main(String[] args) throws Exception {
        int port;
        if (args.length > 0) {
            port = Integer.parseInt(args[0]);
        } else {
            port = 9000;
        }
        new AutobahnServer(port).run();
    }
}
