package pt.ist.fenixWebFramework.renderers;

import java.math.BigDecimal;

import pt.ist.fenixWebFramework.renderers.components.converters.ConversionException;
import pt.ist.fenixWebFramework.renderers.components.converters.Converter;

/**
 * {@inheritDoc}
 * 
 * This renderer converts the value to a BigDecimal with its string constructor.
 * 
 * @author lepc
 */
public class BigDecimalInputRenderer extends NumberInputRenderer {

    @Override
    protected Converter getConverter() {
        return new BigDecimalNumberConverter();
    }
    
    private class BigDecimalNumberConverter extends Converter {

        @Override
        public Object convert(Class type, Object value) {
            final String numberText = ((String) value).trim();
            try {
                return numberText.length() == 0 ? null : new BigDecimal(numberText);
            } catch (NumberFormatException e) {
                throw new ConversionException("renderers.converter.bigdecimal", e, true, value);
            }
        }
        
    }
}