1.1 --- a/task4/solution02/src/org/apidesign/apifest08/currency/CompositeConvertor.java	Fri Oct 17 17:40:14 2008 +0200
     1.2 +++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.3 @@ -1,75 +0,0 @@
     1.4 -package org.apidesign.apifest08.currency;
     1.5 -
     1.6 -import java.io.Serializable;
     1.7 -import java.util.Arrays;
     1.8 -import java.util.Currency;
     1.9 -
    1.10 -/**
    1.11 - * Convertor that is composed from other convertors. 
    1.12 - * @author lukas
    1.13 - *
    1.14 - */
    1.15 -class CompositeConvertor implements ExtendedConvertor, Serializable {
    1.16 -
    1.17 -	private static final long serialVersionUID = -2702026568249130055L;
    1.18 -	
    1.19 -	private final ExtendedConvertor[] convertors;
    1.20 -
    1.21 -
    1.22 -	public CompositeConvertor(ExtendedConvertor... convertors) {
    1.23 -		this.convertors = convertors.clone();
    1.24 -		for (ExtendedConvertor convertor: this.convertors)
    1.25 -		{
    1.26 -			if (convertor==null)
    1.27 -			{
    1.28 -				throw new NullPointerException("One of the convertors to be merged is null");
    1.29 -			}
    1.30 -		}
    1.31 -	}
    1.32 -
    1.33 -	/**
    1.34 -	 * Returns true if the composite contains convertor that supports given conversion.
    1.35 -	 */
    1.36 -	public boolean isConversionSupported(Currency from, Currency to) {
    1.37 -		return findConvertorFor(from, to)!=null;
    1.38 -	}
    1.39 -
    1.40 -
    1.41 -	/**
    1.42 -	 * If the composite contains convertor that supports given conversion, delegates to its convert method.
    1.43 -	 * Throws {@link IllegalArgumentException} convertor supporting given conversion is not found. 
    1.44 -	 */
    1.45 -	public Money convert(Money amount, Currency destinationCurrency) throws IllegalArgumentException {
    1.46 -		ExtendedConvertor convertor = findConvertorFor(amount.getCurrency(), destinationCurrency);
    1.47 -		if (convertor!=null)
    1.48 -		{
    1.49 -			return convertor.convert(amount, destinationCurrency);
    1.50 -		}
    1.51 -		throw new IllegalArgumentException("Conversion not supported. Can not convert to "+destinationCurrency+".");
    1.52 -	}
    1.53 -	
    1.54 -	/**
    1.55 -	 * Finds convertor for given currencies. If not found, returns null. 
    1.56 -	 * @param from
    1.57 -	 * @param to
    1.58 -	 * @return
    1.59 -	 */
    1.60 -	ExtendedConvertor findConvertorFor(Currency from, Currency to) {
    1.61 -		//does linear search, in the future can cache the results.
    1.62 -		for (ExtendedConvertor convertor:convertors)
    1.63 -		{
    1.64 -			if (convertor.isConversionSupported(from, to))
    1.65 -			{
    1.66 -				return convertor;
    1.67 -			}
    1.68 -		}
    1.69 -		return null;
    1.70 -	}
    1.71 -	
    1.72 -
    1.73 -	@Override
    1.74 -	public String toString() {
    1.75 -		return getClass().getName()+" converts "+Arrays.toString(convertors);
    1.76 -	}
    1.77 -
    1.78 -}