Understanding the AsynchronousServerSocketChannel class options - Java Network

Java examples for Network:Asynchronous Server

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Description

Understanding the AsynchronousServerSocketChannel class options

Demo Code

import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.SocketOption;
import java.nio.ByteBuffer;
import java.nio.channels.AsynchronousServerSocketChannel;
import java.nio.channels.AsynchronousSocketChannel;
import java.util.Set;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Future;

public class Main {

  public static void main(String[] args) {
    try {//from   w w  w.j a  v a 2s  .c  om
      final AsynchronousServerSocketChannel listener = AsynchronousServerSocketChannel.open();
      InetSocketAddress address = new InetSocketAddress("localhost", 5000);
      listener.bind(address);

      Set<SocketOption<?>> options = listener.supportedOptions();
      for (SocketOption<?> socketOption : options) {
        System.out.println(socketOption.toString() + ": " + listener.getOption(socketOption));
      }
      // Using the Future object in a server
      Future<AsynchronousSocketChannel> future = listener.accept();
      AsynchronousSocketChannel worker = future.get();

      while (true) {
        // Wait
        System.out.println("Server: Receiving ...");
        ByteBuffer buffer = ByteBuffer.allocate(32);
        Future<Integer> readFuture = worker.read(buffer);
        Integer number = readFuture.get();
        System.out.println("Server: Message received: " + new String(buffer.array()));
      }
    } catch (IOException | InterruptedException | ExecutionException ex) {
      ex.printStackTrace();
    }
  }
}

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