Tutorial

TcpChannel "Hello World" Tutorial

This tutorial will take you through all the features of TcpChannel. The tutorial requires running 2 VMs; one will host the server, the other will host the client.

This is the source code for running the server:

:::java
public class Server
{
    public static void main(String[] args) throws IOException
    {
        new TcpServer("localhost", 12001, new IReceiver()
        {
            @Override
            public void onChannelConnected(ITcpChannel tcpChannel)
            {
                System.out.println("Connected " + tcpChannel);
            }

            @Override
            public void onDataReceived(byte[] data, ITcpChannel source)
            {
                System.out.println("Received '" + new String(data) + "' from client " + source);
                source.sendAsync("Goodbye world!".getBytes());
            }

            @Override
            public void onChannelClosed(ITcpChannel tcpChannel)
            {
                System.out.println("Disconnected " + tcpChannel);
            }
        });
        System.in.read();
    }
}

This is the source code for the client:

:::java
public class Client
{
    public static void main(String[] args) throws IOException
    {
        TcpChannel client = new TcpChannel("localhost", 12001, new IReceiver()
        {
            @Override
            public void onChannelConnected(ITcpChannel tcpChannel)
            {
                System.out.println("Connected " + tcpChannel);
            }

            @Override
            public void onDataReceived(byte[] data, ITcpChannel source)
            {
                System.out.println("Received '" + new String(data) + "' from server " + source);
            }

            @Override
            public void onChannelClosed(ITcpChannel tcpChannel)
            {
                System.out.println("Disconnected " + tcpChannel);
            }
        });
        client.sendAsync("hello world".getBytes());
        System.in.read();
    }
}

After running all the two programs, you should see the following in the server console:

...
Connected TcpChannel [connected local=/127.0.0.1:12001 remote=/127.0.0.1:58102]
...
Received 'hello world' from client TcpChannel [connected local=/127.0.0.1:12001 remote=/127.0.0.1:51838]
...
Disconnected TcpChannel [connected local=/127.0.0.1:12001 remote=/127.0.0.1:51838]

... and the following in the client console:

...
Connected TcpChannel [connected local=/127.0.0.1:58102 remote=localhost/127.0.0.1:12001]
...
Received 'Goodbye world!' from server TcpChannel [connected local=/127.0.0.1:58102 remote=localhost/127.0.0.1:12001]