@Override
public Datum eval(Tuple params) {
if (params.isBlankOrNull(0)) {
return NullDatum.get();
}
int value = params.getInt4(0);
if (value <= 0 || value > 65525) {
return NullDatum.get();
} else {
return DatumFactory.createText(String.valueOf((char) value));
}
}
@Override
public Datum eval(Tuple params) {
Datum datum = params.get(0);
if (datum instanceof NullDatum) return NullDatum.get();
return DatumFactory.createInt4(datum.asByteArray().length * 8);
}
@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)) {
return NullDatum.get();
}
return DatumFactory.createFloat8(Math.asin(params.getFloat8(0)));
}
@Override
public Datum eval(Tuple params) {
if (params.isBlankOrNull(0)) {
return NullDatum.get();
}
String ipstr = params.getText(0);
return new Int4Datum(IPconvertUtil.ipstr2int(ipstr));
}
/** Called after all fields have been processed. */
@Override
public void end() {
for (int i = 0; i < projectionMap.length; ++i) {
final int projectionIndex = projectionMap[i];
Column column = tajoReadSchema.getColumn(projectionIndex);
if (column.getDataType().getType() == TajoDataTypes.Type.NULL_TYPE
|| currentTuple.isBlankOrNull(i)) {
set(projectionIndex, NullDatum.get());
}
}
}
public Datum toDatum(int i) {
if (keys[i] == null) {
return NullDatum.get();
}
switch (keyTypes[i]) {
case NULL_TYPE:
return NullDatum.get();
case BOOLEAN:
return DatumFactory.createBool((Boolean) keys[i]);
case BIT:
return DatumFactory.createBit((Byte) keys[i]);
case INT1:
case INT2:
return DatumFactory.createInt2((Short) keys[i]);
case INT4:
return DatumFactory.createInt4((Integer) keys[i]);
case DATE:
return DatumFactory.createDate((Integer) keys[i]);
case INT8:
return DatumFactory.createInt8((Long) keys[i]);
case TIME:
return DatumFactory.createTime((Long) keys[i]);
case TIMESTAMP:
return DatumFactory.createTimestamp((Long) keys[i]);
case FLOAT4:
return DatumFactory.createFloat4((Float) keys[i]);
case FLOAT8:
return DatumFactory.createFloat8((Double) keys[i]);
case TEXT:
return DatumFactory.createText((byte[]) keys[i]);
case CHAR:
return DatumFactory.createChar((byte[]) keys[i]);
case BLOB:
return DatumFactory.createBlob((byte[]) keys[i]);
case DATUM:
return (Datum) keys[i];
default:
throw new IllegalArgumentException();
}
}
@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);
}