package com.cantaa.util.wicket.converter;
import java.math.BigDecimal;
import java.text.DecimalFormat;
import java.text.NumberFormat;
import java.util.Locale;
import org.apache.wicket.util.convert.converter.AbstractDecimalConverter;
import org.apache.wicket.util.convert.converter.BigDecimalConverter;
import com.cantaa.util.type.Amount;
/**
* Abstract Converter for Amounts
* @author Hans Lesmeister
*/
public abstract class AbstractAmountConverter<T extends Amount<T>> extends AbstractDecimalConverter<T> {
private BigDecimalConverter wrappedConverter;
public AbstractAmountConverter() {
wrappedConverter = new BigDecimalConverter();
}
@Override
protected NumberFormat newNumberFormat(Locale locale) {
DecimalFormat instance = getDecimalFormatInstance(locale);
// Get rid of the Euro-Sign
instance.setPositivePrefix("");
instance.setPositiveSuffix("");
instance.setNegativePrefix("-");
instance.setNegativeSuffix("");
instance.setMultiplier(1);
return instance;
}
protected abstract DecimalFormat getDecimalFormatInstance(Locale locale);
@Override
public T convertToObject(String value, Locale locale) {
return createAmount(wrappedConverter.convertToObject(value, locale));
}
protected abstract T createAmount(BigDecimal value);
}