@Override
public StringBuffer format(Object value, StringBuffer buffer, FieldPosition field) {
if (!(value instanceof Number)) {
throw new IllegalArgumentException();
}
if (buffer == null || field == null) {
throw new NullPointerException();
}
String fieldType = null;
if (field != null) {
fieldType = getFieldType(field.getFieldAttribute());
}
Number number = (Number) value;
if (number instanceof BigInteger) {
BigInteger valBigInteger = (BigInteger) number;
String result =
NativeDecimalFormat.format(
this.addr, valBigInteger.toString(10), field, fieldType, null, 0);
return buffer.append(result);
} else if (number instanceof BigDecimal) {
BigDecimal valBigDecimal = (BigDecimal) number;
String result =
NativeDecimalFormat.format(
this.addr,
valBigDecimal.unscaledValue().toString(10),
field,
fieldType,
null,
valBigDecimal.scale());
return buffer.append(result);
} else {
double dv = number.doubleValue();
long lv = number.longValue();
if (dv == lv) {
String result = NativeDecimalFormat.format(this.addr, lv, field, fieldType, null);
return buffer.append(result);
}
String result = NativeDecimalFormat.format(this.addr, dv, field, fieldType, null);
return buffer.append(result);
}
}
@Override
public StringBuffer format(double value, StringBuffer buffer, FieldPosition field) {
if (buffer == null) {
throw new NullPointerException();
}
String fieldType = null;
if (field != null) {
fieldType = getFieldType(field.getFieldAttribute());
}
String result = NativeDecimalFormat.format(this.addr, value, field, fieldType, null);
buffer.append(result.toCharArray(), 0, result.length());
return buffer;
}