/*
 * Main Client Class for Calculator
 * 
 * ============================================
 * When          Who           What
 * ============================================
 * 2007-01-10    Olle Kullberg Created.
 * ============================================
 */

import com.your_domain.www.axis.services.Calculator_wsdl.CalculatorPortType;
import com.your_domain.www.axis.services.Calculator_wsdl.CalculatorServiceLocator;
import com.your_domain.www.ns.Calculator_xsd.MultiplicationRequestType;
import com.your_domain.www.ns.Calculator_xsd.DivisionRequestType;


public class Main {
    
    
    public static void main (String[] args) throws Exception {
    
        
        CalculatorServiceLocator loc=null;
        CalculatorPortType stub = null;
        
        System.out.println("====================================");
        System.out.println("Main 1. Try locate service..");
        System.out.println("====================================");
        try{
            loc = new CalculatorServiceLocator();
            System.out.println("New CalculatorServiceLocator created.");
            stub = loc.getCalculator();
            System.out.println("CalculatorPortType created.");
        }catch( Exception e){
            System.err.println("Error when trying to find Calculator Service!");
            System.err.println("Check if service is deployed or server down.");
            e.printStackTrace();
            System.exit(2);
        }  
        
        if(stub == null){
            System.err.println("CalculatorPortType can not be found!");
            System.err.println("Check if service is deployed or server down.");
            System.exit(2);
        }
        
        System.out.println("====================================");
        System.out.println("Main 2. Check parameters");
        System.out.println("====================================");
        
        // First chech nr of args.
        if (args.length != 3){
            System.err.println ("Usage: java Main method arg1 arg2");
            System.exit(2);
        }
        
        int a1=0;
        int a2=0;
        float floatRes=0;
        
        // First try to convert the 2 last arguments
        try{
            a1= Integer.parseInt(args[1]);
            a2= Integer.parseInt(args[2]);
        }catch(Exception e){
            System.err.println("Usage: java Main method arg1 arg2");
            System.err.println("Arguments must be integers.");
            System.exit(2);
        }
        
        // Now check first argument.
        String command= (String) args[0];
        
        System.out.println("====================================");
        System.out.println("Main 3. Try execute command..");
        System.out.println("====================================");
         
        try{
            if (command.equalsIgnoreCase("MUL")){
                MultiplicationRequestType mrt= new MultiplicationRequestType(a1,a2);
                floatRes= (float) stub.multiplication(mrt);
            }else if(command.equalsIgnoreCase("DIV")){
                DivisionRequestType drt= new DivisionRequestType(a1,a2);
                floatRes= stub.division(drt);
            }else{
                System.err.println ("Usage: java Main method arg1 arg2");
                System.err.println ("Method must be: MUL or DIV.");
                System.exit(2);
            }
        }catch(Exception e){
        
            System.err.println("Error when trying to execute command!");
            e.printStackTrace();
            System.exit(2);
        }
        
        System.out.println("====================================");
        System.out.println("Main 4. Print result..");
        System.out.println("====================================");
        
        // To store the result
        String result="The result of the operation "+ command + "( "+a1+ ", "+a2+" ) was "+floatRes;
        System.out.println(result);

        
        System.out.println("Program finished!");
    }
}