/******************************************************************************* 
 * PayCalcClient is the client program that accepts the loan term, principal amount,
 * and interest rate as input values and then calls the Payment Calculator 
 * (PaymentCalculator) Web service to determine the monthly payment amount and 
 * the total payment over the life of the loan.
 * 
 * Kelli Wiseth
 * CS277 | NDNU | XML and Web Services
 * 26-November-2004
 *
 ******************************************************************************** 
*/


import java.io.*;
import java.text.NumberFormat;

import org.apache.axis.client.Call;
import org.apache.axis.client.Service;

import javax.xml.namespace.QName;

public class PayCalcClient 
{
  public static void main(String[] args) throws IOException  
  {
  	// create NumberFormat object to format output
    NumberFormat money = NumberFormat.getCurrencyInstance(); 
    double interest, principal, term;
        
    BufferedReader stdin = new BufferedReader(new InputStreamReader(System.in));
    System.out.println("Welcome to the payment calculation web service");
    System.out.println();
    System.out.print("Enter principal amount:        ");
    System.out.flush();
    principal=Double.parseDouble(stdin.readLine());
    System.out.print("Enter interest rate:           ");
    System.out.flush();
    interest=Double.parseDouble(stdin.readLine());
	System.out.print("Enter life of loan, in years:  ");
    System.out.flush();
    term=Double.parseDouble(stdin.readLine());
    
    
    try 
    {
      // setting a string for service's target URL
      String target = "http://techlabcpq:80/axis/services/paymentcalculator";

      // creating a service object
      Service service = new Service();

      // creating two calls on the service object
      Call call1 = (Call)service.createCall();
      Call call2 = (Call)service.createCall();

      // setting the URL of the service for the call objects
      call1.setTargetEndpointAddress(new java.net.URL(target));
      call2.setTargetEndpointAddress(new java.net.URL(target));
      
      // specifying methods to invoke
      call1.setOperationName(new QName("getMonthlyPayment"));
      call2.setOperationName(new QName("getTotalPayment"));

      // now create an array containing the two parameters
      Object[] paramArray = new Object[3];
      paramArray[0] = new Double(interest);
      paramArray[1] = new Double(principal);
      paramArray[2] = new Double(term);

      Double monthlyPaymentAmt = (Double) call1.invoke(paramArray);
      Double totalPaymentAmt = (Double) call2.invoke(paramArray);
      System.out.println();
      System.out.println("**************** Payment Calculator Web Service **************");
      System.out.println();
      System.out.println("The results below are being provided by a Web service running at \n" + target);
      System.out.println();
      System.out.println();
      System.out.print("Monthly payment amount:   " + money.format(monthlyPaymentAmt) + "\n");
      System.out.print("Total payment, loan term: " + money.format(totalPaymentAmt)   + "\n");
      
    
  //  System.out.println("The monthly payment is " + money.format(getMonthlyPayment(interest, principal, term)));

    
    
    }
    
    catch (Exception e)
    {
     System.out.println("There's a problem with the RPC: " + e);
    }
    
   }//main

}//PayCalcClient