@Override
public Datum eval(Tuple params) {
if (params.isBlankOrNull(0) || params.isBlankOrNull(1)) {
return NullDatum.get();
}
String fillText;
if (hasFillCharacters) {
fillText = params.getText(2);
} else {
fillText = " ";
}
String input = params.getText(0);
int expected = params.getInt4(1);
int templen = expected - params.size(0);
if (templen <= 0) {
return DatumFactory.createText(input.substring(0, expected));
} else {
return DatumFactory.createText(StringUtils.leftPad(input, expected, fillText));
}
}
@Override
public Datum eval(Tuple params) {
if (params.isBlankOrNull(0) || params.isBlankOrNull(1)) {
return NullDatum.get();
}
String value = params.getText(0);
String pattern = params.getText(1);
TimeMeta tm = DateTimeFormat.parseDateTime(value, pattern);
return new DateDatum(tm);
}
@Override
public Datum eval(Tuple params) {
if (params.isBlankOrNull(0)) {
return NullDatum.get();
}
String ipstr = params.getText(0);
return new Int4Datum(IPconvertUtil.ipstr2int(ipstr));
}