/**
 * This Class implements a basic test client to GenericServices
 * @version 	1.0
 * @author Tim Stefanini
 */
 
import java.io.*;
import java.net.*;

public class GenericClient //e.g. example use of Dynamic Service Loading
{
    public static void main(String[] args) 
    {	try 
        {    new ServiceLoader(); //Load and Start all Service Classes
             //You can probably make this simpler by creating a higher 
             //level connection class, but this shows how it works.
             //Create Input and Output Sockets for Service1 - CAPS
             
             int iServerPort = CapService.GetPort();
             //Get port for Service Type
             Socket CapSocket = new Socket("localhost", iServerPort );
             //Create Communication Socket
             //Create Input and Output Sockets for Service2 - Reverse
             int iServerPort2 = ReverseService.GetPort();
             Socket ReverseSocket = new Socket("localhost", iServerPort2 );
             //Use Caps Service
             PushToService("This is a fine class", CapSocket); 
             PushToService("This is a another good test", CapSocket);
            //Use Reverse Service
            result = PushToService("This is a fine class", ReverseSocket); 
            PushToService("This is a another good test", ReverseSocket);
        }//end try
        catch (Exception e)
        {    e.printStackTrace();
        }//end catch
        finally { pause (300); }
    }//end main
    
    private static String PushToService( String data, Socket ServiceSocket)
    {    String s = null;
         try 
         {    DataInputStream inStream = new DataInputStream(ServiceSocket.getInputStream());
              PrintStream ps = new PrintStream(ServiceSocket.getOutputStream(), true);
              //true=autoflush
              ps.print(data + "\r\n"); //add line terminator for DataInputStream ReadLine()
              if (( s = inStream.readLine()) != null)
                  System.out.println("client received  :" + s +":");
         }//end try
         catch (Exception e)
         { e.printStackTrace();
         }//end catch
         finally
         { return s;
         }//end finally
         }//end PushToService
         //Pause makes it easier to see output when you are running this 
         //from your applicatoin dev environment
         
         private static void pause(int time)
         {    for (int x=1; x< 1000000; x++)
              for (int y = 1; y< time; y++);
         }//end pause()
         
    /* These methods are replaced by "ServiceLoader" 
         private static void CreateReverseService ()
         {    ReverseService server = new ReverseService ();
              server.Activate ();
              server.StartUp ();
         }//end CreateReverseService()
              
         private static void CreateCapService ()
         {
              CapService server = new CapService ();
              server.Activate ();
              server.StartUp ();
         }//end CreateReverseService()
   */
}//end class GenericClient