import java.util.Vector;
import java.util.Hashtable;
import org.apache.xmlrpc.*;
    
public class SumClient {
    
  // The location of our server.
  private final static String server_url =
  "http://localhost:32000/";
  
  public static void main (String [] args) {
    try {
      
      // Create an object to represent our server.
      XmlRpcClient server = new XmlRpcClient(server_url);
      
      // Build our parameter list.
      Vector params = new Vector();
      params.addElement(new Integer(5));
      params.addElement(new Integer(3));
      
      // Call the server, and get our result.
      for (int i = 0; i < 1000; i++)
	{
	  Hashtable result =
	    (Hashtable) server.execute("sumAndDifference", params);
	  int sum = ((Integer) result.get("sum")).intValue();
	  int difference = ((Integer) result.get("difference")).intValue();
      
	  // Print out our result.
	  System.out.println("Run " + Integer.toString(i) +
			     ": Sum: " + Integer.toString(sum) +
			     ", Difference: " +
			     Integer.toString(difference));
	}

      try {
	Vector par_stop = new Vector();
	par_stop.addElement(new Integer(1));
	Hashtable result =
	  (Hashtable) server.execute("stopServer", par_stop);
      } catch  (Exception exception) {
	System.err.println("JavaClient: Server Stopped!");
      }

    } catch (XmlRpcException exception) {
      System.err.println("JavaClient: XML-RPC Fault #" +
			 Integer.toString(exception.code) + ": " +
			 exception.toString());
    } catch (Exception exception) {
      System.err.println("JavaClient: " + exception.toString());
    }
  }
}