1.1 --- a/task2/solution05/src/org/apidesign/apifest08/currency/ConvertorImpl.java	Tue Oct 07 01:18:23 2008 +0200
     1.2 +++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.3 @@ -1,56 +0,0 @@
     1.4 -package org.apidesign.apifest08.currency;
     1.5 -
     1.6 -/**
     1.7 - * ConvetorImpl it the basic implementaion of Convertor interface.
     1.8 - * @see Convertor Convertor for more details.
     1.9 - * The 100 pences makes 1 amount of the currency.
    1.10 - *
    1.11 - * @author jindra
    1.12 - */
    1.13 -final class ConvertorImpl implements Convertor {
    1.14 -
    1.15 -    private static final double P_TO_AM = 100;
    1.16 -    private double exchangeRate;
    1.17 -
    1.18 -    ConvertorImpl(double exchangeRate) {
    1.19 -        this.exchangeRate = exchangeRate;
    1.20 -    }
    1.21 -
    1.22 -    public Amount convert(Amount amount) {
    1.23 -        verifyInput(amount);
    1.24 -        double result = convertToDouble(amount) * exchangeRate;
    1.25 -        return convertToAmount(result);
    1.26 -    }
    1.27 -
    1.28 -    public Amount convertBack(Amount amount) {
    1.29 -        if (amount == null) {
    1.30 -            throw new IllegalArgumentException("Amount must be not null");
    1.31 -        }
    1.32 -        double result = convertToDouble(amount) / exchangeRate;
    1.33 -        return convertToAmount(result);
    1.34 -    }
    1.35 -
    1.36 -    private double convertToDouble(Amount amount) {
    1.37 -        double am = amount.getAmount();
    1.38 -        double pc = amount.getPence();
    1.39 -        return am + (pc / P_TO_AM);
    1.40 -    }
    1.41 -
    1.42 -    private Amount convertToAmount(double result) {
    1.43 -        long resultAm = Math.round(Math.floor(result));
    1.44 -        long resultPc = Math.round(Math.floor((result * P_TO_AM - resultAm * P_TO_AM)));
    1.45 -        return new Amount(resultAm, resultPc);
    1.46 -    }
    1.47 -
    1.48 -    private void verifyInput(Amount amount) {
    1.49 -        if (amount == null) {
    1.50 -            throw new IllegalArgumentException("Amount must be not null");
    1.51 -        }
    1.52 -        if (amount.getPence() < 0) {
    1.53 -            throw new IllegalArgumentException("Pences must not be negative");
    1.54 -        }
    1.55 -        if (amount.getPence() > P_TO_AM) {
    1.56 -            throw new IllegalArgumentException("Pences must not be over P_TO_AM");
    1.57 -        }
    1.58 -    }
    1.59 -}