1.1 --- a/task4/solution02/src/org/apidesign/apifest08/currency/DefaultConvertor.java	Fri Oct 17 17:40:14 2008 +0200
     1.2 +++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.3 @@ -1,95 +0,0 @@
     1.4 -package org.apidesign.apifest08.currency;
     1.5 -
     1.6 -import java.io.Serializable;
     1.7 -import java.math.BigDecimal;
     1.8 -import java.math.RoundingMode;
     1.9 -import java.util.Currency;
    1.10 -
    1.11 -/**
    1.12 - * Default {@link Convertor} implementation. Exchange rate is stored as equivalents. It means if we have USD to CZK convertor and USD1 = CZK17 
    1.13 - * we store 1 in sourceEquivalent and 17 in destinationEquivalent. This class is immutable.
    1.14 - * @author lukas
    1.15 - *
    1.16 - */
    1.17 -class DefaultConvertor implements ExtendedConvertor, Serializable {
    1.18 -
    1.19 -	private static final long serialVersionUID = 6660014633685135034L;
    1.20 -
    1.21 -	/**
    1.22 -	 * Equivalent in source currency.
    1.23 -	 */
    1.24 -	private final BigDecimal sourceEquivalent;
    1.25 -	
    1.26 -	/**
    1.27 -	 * Equivalent in destination currency.
    1.28 -	 */
    1.29 -	private final BigDecimal destinationEquivalent;
    1.30 -	
    1.31 -	private final Currency sourceCurrency;
    1.32 -	
    1.33 -	private final Currency destinationCurrency;
    1.34 -	
    1.35 -	public DefaultConvertor(Money sourceEquivalent, Money destinationEquivalent) {
    1.36 -		super();
    1.37 -		if (BigDecimal.ZERO.compareTo(sourceEquivalent.getAmount())==0)
    1.38 -		{
    1.39 -			throw new IllegalArgumentException("Source equivalent amount can not be 0.");
    1.40 -		}
    1.41 -		if (BigDecimal.ZERO.compareTo(destinationEquivalent.getAmount())==0)
    1.42 -		{
    1.43 -			throw new IllegalArgumentException("Destination equivalent amount can not be 0.");
    1.44 -		}
    1.45 -		this.sourceEquivalent = sourceEquivalent.getAmount();
    1.46 -		this.destinationEquivalent = destinationEquivalent.getAmount();
    1.47 -		this.sourceCurrency = sourceEquivalent.getCurrency();
    1.48 -		this.destinationCurrency = destinationEquivalent.getCurrency();
    1.49 -	}
    1.50 -	
    1.51 -	public Money convert(Money amount, Currency destinationCurrency) {
    1.52 -		if (amount==null)
    1.53 -		{
    1.54 -			throw new NullPointerException("Money is null");
    1.55 -		}
    1.56 -		if (destinationCurrency==null)
    1.57 -		{
    1.58 -			throw new NullPointerException("destionationCurrency is null");
    1.59 -		}
    1.60 -		if (!amount.getCurrency().equals(getSourceCurrency()))
    1.61 -		{
    1.62 -			throw new IllegalArgumentException("Can not convert from "+amount.getCurrency()+". Converts between "+getSourceCurrency()+" and "+getDestinationCurrency());
    1.63 -		}
    1.64 -		if (!getDestinationCurrency().equals(destinationCurrency))
    1.65 -		{
    1.66 -			throw new IllegalArgumentException("Can not convert to "+destinationCurrency+". Converts between "+getSourceCurrency()+" and "+getDestinationCurrency());
    1.67 -		}
    1.68 -		BigDecimal sourceAmount = amount.getAmount();
    1.69 -		BigDecimal destinationAmount = sourceAmount.multiply(destinationEquivalent).divide(sourceEquivalent, 2, RoundingMode.HALF_UP);
    1.70 -		return new MoneyImpl(destinationAmount, getDestinationCurrency());
    1.71 -	}
    1.72 -	
    1.73 -	public boolean isConversionSupported(Currency from, Currency to) {
    1.74 -		return sourceCurrency.equals(from) && destinationCurrency.equals(to);
    1.75 -	}
    1.76 -
    1.77 -	public BigDecimal getSourceEquivalent() {
    1.78 -		return sourceEquivalent;
    1.79 -	}
    1.80 -
    1.81 -	public BigDecimal getDestinationEquivalent() {
    1.82 -		return destinationEquivalent;
    1.83 -	}
    1.84 -
    1.85 -	public Currency getSourceCurrency() {
    1.86 -		return sourceCurrency;
    1.87 -	}
    1.88 -
    1.89 -	public Currency getDestinationCurrency() {
    1.90 -		return destinationCurrency;
    1.91 -	}
    1.92 -	
    1.93 -	@Override
    1.94 -	public String toString() {
    1.95 -		return getClass().getName()+" converts "+getSourceCurrency()+" to "+getDestinationCurrency()+" "
    1.96 -			+getSourceCurrency()+getSourceEquivalent()+"="+getDestinationCurrency()+getDestinationEquivalent();
    1.97 -	}
    1.98 -}