protected Map<String, ParameterConverter> converters = new HashMap<String, ParameterConverter>();
public ConversionManager() {
converters.put(ParameterTypeEnum.BOOLEAN.toString(), new BooleanParameterConverter());
converters.put(ParameterTypeEnum.DOUBLE.toString(), new DoubleParameterConverter());
converters.put(ParameterTypeEnum.FLOAT.toString(), new FloatParameterConverter());
converters.put(ParameterTypeEnum.INT.toString(), new IntParameterConverter());
converters.put(ParameterTypeEnum.RECTANGLE.toString(), new RectangleParameterConverter());
}