CalculateAddWithDifferentUnits.java

package com.processpuzzle.fitnesse.fundamental_types;

import com.processpuzzle.application.configuration.domain.MeasurementContext;
import com.processpuzzle.application.configuration.domain.ProcessPuzzleContext;
import com.processpuzzle.fundamental_types.quantity.domain.Quantity;
import com.processpuzzle.fundamental_types.quantity.domain.Unit;
import com.processpuzzle.fundamental_types.quantity.domain.UnitMismatchException;
import com.processpuzzle.user_session.domain.UserRequestManager;

import fit.ColumnFixture;

public class CalculateAddWithDifferentUnits extends ColumnFixture {

   public String unitSymbol_1;
   public String unitSymbol_2;
   public String quantity1;
   public String quantity2;
   private Quantity result = null;

   public CalculateAddWithDifferentUnits() {
   }

   public double add() throws UnitMismatchException {
      ProcessPuzzleContext applicationContext = UserRequestManager.getInstance().getApplicationContext();
      MeasurementContext measurementContext = applicationContext.getMeasurementContext();
      Unit unit_1 = measurementContext.findUnitBySymbol( unitSymbol_1 );
      Unit unit_2 = measurementContext.findUnitBySymbol( unitSymbol_2 );
      Quantity quantityObject1 = new Quantity(Double.valueOf(quantity1), unit_1 );
      Quantity quantityObject2 = new Quantity(Double.valueOf(quantity2), unit_2 );
      result = quantityObject1.add(quantityObject2); 
      
      return result.getAmount();
   }

   public String unit() {
      return result.getUnit().getSymbol();
   }
   
}