/*
 * 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.example.udt.echo.rendezvousBytes;

import io.netty.bootstrap.Bootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.udt.UdtChannel;
import io.netty.channel.udt.nio.NioUdtProvider;
import io.netty.handler.logging.LogLevel;
import io.netty.handler.logging.LoggingHandler;
import io.netty.util.concurrent.DefaultExecutorServiceFactory;
import io.netty.util.concurrent.ExecutorServiceFactory;

import java.net.SocketAddress;

/**
 * UDT Byte Stream Peer
 * <p/>
 * Sends one message when a connection is open and echoes back any received data
 * to the server. Simply put, the echo client initiates the ping-pong traffic
 * between the echo client and server by sending the first message to the
 * server.
 * <p/>
 */
public class ByteEchoPeerBase {

    protected final int messageSize;
    protected final SocketAddress myAddress;
    protected final SocketAddress peerAddress;

    public ByteEchoPeerBase(int messageSize, SocketAddress myAddress, SocketAddress peerAddress) {
        this.messageSize = messageSize;
        this.myAddress = myAddress;
        this.peerAddress = peerAddress;
    }

    public void run() throws Exception {
        final ExecutorServiceFactory connectFactory = new DefaultExecutorServiceFactory("rendezvous");
        final NioEventLoopGroup connectGroup =
                new NioEventLoopGroup(1, connectFactory, NioUdtProvider.BYTE_PROVIDER);

        try {
            final Bootstrap bootstrap = new Bootstrap();
            bootstrap.group(connectGroup)
                    .channelFactory(NioUdtProvider.BYTE_RENDEZVOUS)
                    .handler(new ChannelInitializer<UdtChannel>() {
                        @Override
                        protected void initChannel(UdtChannel ch) throws Exception {
                            ch.pipeline().addLast(
                                    new LoggingHandler(LogLevel.INFO),
                                    new ByteEchoPeerHandler(messageSize));
                        }
                    });
            final ChannelFuture future = bootstrap.connect(peerAddress, myAddress).sync();
            future.channel().closeFuture().sync();
        } finally {
            connectGroup.shutdownGracefully();
        }
    }
}
