package hello;
import io.netty.bootstrap.ServerBootstrap;
import io.netty.buffer.PooledByteBufAllocator;
import io.netty.channel.Channel;
import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.ServerChannel;
import io.netty.channel.epoll.Epoll;
import io.netty.channel.epoll.EpollEventLoopGroup;
import io.netty.channel.epoll.EpollServerSocketChannel;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.nio.NioServerSocketChannel;
import io.netty.util.ResourceLeakDetector;
import io.netty.util.ResourceLeakDetector.Level;
public class HelloWebServer {
static {
ResourceLeakDetector.setLevel(Level.DISABLED);
}
private final int port;
public HelloWebServer(int port) {
this.port = port;
}
public void run() throws Exception {
// Configure the server.
if (Epoll.isAvailable()) {
doRun(new EpollEventLoopGroup(), EpollServerSocketChannel.class);
} else {
doRun(new NioEventLoopGroup(), NioServerSocketChannel.class);
}
}
private void doRun(EventLoopGroup loupGroup, Class<? extends ServerChannel> serverChannelClass) throws InterruptedException {
try {
ServerBootstrap b = new ServerBootstrap();
b.option(ChannelOption.SO_BACKLOG, 1024);
b.option(ChannelOption.SO_REUSEADDR, true);
b.group(loupGroup).channel(serverChannelClass).childHandler(new HelloServerInitializer(loupGroup.next()));
b.option(ChannelOption.MAX_MESSAGES_PER_READ, Integer.MAX_VALUE);
b.childOption(ChannelOption.ALLOCATOR, new PooledByteBufAllocator(true));
b.childOption(ChannelOption.SO_REUSEADDR, true);
b.childOption(ChannelOption.MAX_MESSAGES_PER_READ, Integer.MAX_VALUE);
Channel ch = b.bind(port).sync().channel();
ch.closeFuture().sync();
} finally {
loupGroup.shutdownGracefully().sync();
}
}
public static void main(String[] args) throws Exception {
int port;
if (args.length > 0) {
port = Integer.parseInt(args[0]);
} else {
port = 8080;
}
new HelloWebServer(port).run();
}
}