1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/task2/solution01/src/org/apidesign/apifest08/currency/CurrencyConvertorFactoryImpl.java	Wed Oct 01 10:43:05 2008 +0200
     1.3 @@ -0,0 +1,29 @@
     1.4 +package org.apidesign.apifest08.currency;
     1.5 +
     1.6 +import java.util.Currency;
     1.7 +
     1.8 +/**
     1.9 + * Convertor Factory implementation
    1.10 + * In the real-time world this code should be optimized - convertors caching etc.
    1.11 + * @author Ladislav Vitasek
    1.12 + */
    1.13 +class CurrencyConvertorFactoryImpl extends AbstractConvertorFactory  {
    1.14 +    
    1.15 +
    1.16 +    CurrencyConvertorFactoryImpl() {
    1.17 +        super();
    1.18 +    }
    1.19 +
    1.20 +    // Note - implementation of this method is dummy
    1.21 +    
    1.22 +    public Convertor createConvertor(Currency currency1, Currency currency2, ConversionProperties conversionProperties) throws ConvertorNotAvailableException {
    1.23 +        if (currency1 == null || currency2 == null || conversionProperties == null)
    1.24 +            throw new NullPointerException();
    1.25 +
    1.26 +        try {
    1.27 +            return new CurrencyConvertorImpl(currency1, currency2, conversionProperties.getConversionRatioProvider(), conversionProperties.getRoundingMode());//can be cached somehow
    1.28 +        } catch (Exception e) {
    1.29 +            throw new ConvertorNotAvailableException(e);
    1.30 +        }
    1.31 +    }
    1.32 +}