public void run() throws Exception {
// Address to bind on / connect to.
final LocalAddress addr = new LocalAddress(port);
Bootstrap cb = new Bootstrap();
ServerBootstrap sb = new ServerBootstrap();
try {
// Note that we can use any event loop to ensure certain local channels
// are handled by the same event loop thread which drives a certain socket channel
// to reduce the communication latency between socket channels and local channels.
sb.group(new LocalEventLoopGroup())
.channel(LocalServerChannel.class)
.handler(new ChannelInitializer<LocalServerChannel>() {
@Override
public void initChannel(LocalServerChannel ch) throws Exception {
ch.pipeline().addLast(new LoggingHandler(LogLevel.INFO));
}
})
.childHandler(new ChannelInitializer<LocalChannel>() {
@Override
public void initChannel(LocalChannel ch) throws Exception {
ch.pipeline().addLast(
new LoggingHandler(LogLevel.INFO),
new LocalEchoServerHandler());
}
});
cb.group(new NioEventLoopGroup()) // NIO event loops are also OK
.channel(LocalChannel.class)
.handler(new ChannelInitializer<LocalChannel>() {
@Override
public void initChannel(LocalChannel ch) throws Exception {
ch.pipeline().addLast(
new LoggingHandler(LogLevel.INFO),
new LocalEchoClientHandler());
}
});
// Start the server.
sb.bind(addr).sync();
// Start the client.
Channel ch = cb.connect(addr).sync().channel();
// Read commands from the stdin.
System.out.println("Enter text (quit to end)");
ChannelFuture lastWriteFuture = null;
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
for (;;) {
String line = in.readLine();
if (line == null || "quit".equalsIgnoreCase(line)) {
break;
}
// Sends the received line to the server.
lastWriteFuture = ch.write(line);
}
// Wait until all messages are flushed before closing the channel.
if (lastWriteFuture != null) {
lastWriteFuture.awaitUninterruptibly();
}
} finally {
sb.shutdown();
cb.shutdown();
}
}