protected void evaluateString(ColumnVector columnVector, LongColumnVector output, int i) {
BytesColumnVector bcv = (BytesColumnVector) columnVector;
text.set(bcv.vector[i], bcv.start[i], bcv.length[i]);
try {
date.setTime(formatter.parse(text.toString()).getTime());
output.vector[i] = baseDate - DateWritable.dateToDays(date);
} catch (ParseException e) {
output.vector[i] = 1;
output.isNull[i] = true;
}
}
@Override
public void evaluate(VectorizedRowBatch batch) {
if (childExpressions != null) {
super.evaluateChildren(batch);
}
LongColumnVector outV = (LongColumnVector) batch.cols[outputColumn];
ColumnVector inputCol = batch.cols[this.colNum];
/* every line below this is identical for evaluateLong & evaluateString */
final int n = inputCol.isRepeating ? 1 : batch.size;
int[] sel = batch.selected;
if (batch.size == 0) {
/* n != batch.size when isRepeating */
return;
}
/* true for all algebraic UDFs with no state */
outV.isRepeating = inputCol.isRepeating;
switch (inputTypes[0]) {
case DATE:
baseDate = (int) longValue;
break;
case TIMESTAMP:
date.setTime(longValue / 1000000);
baseDate = DateWritable.dateToDays(date);
break;
case STRING:
try {
date.setTime(formatter.parse(new String(stringValue, "UTF-8")).getTime());
baseDate = DateWritable.dateToDays(date);
break;
} catch (Exception e) {
outV.noNulls = false;
if (batch.selectedInUse) {
for (int j = 0; j < n; j++) {
int i = sel[j];
outV.isNull[i] = true;
}
} else {
for (int i = 0; i < n; i++) {
outV.isNull[i] = true;
}
}
return;
}
}
switch (inputTypes[1]) {
case DATE:
if (inputCol.noNulls) {
outV.noNulls = true;
if (batch.selectedInUse) {
for (int j = 0; j < n; j++) {
int i = sel[j];
outV.vector[i] = evaluateDate(inputCol, i);
}
} else {
for (int i = 0; i < n; i++) {
outV.vector[i] = evaluateDate(inputCol, i);
}
}
} else {
// Handle case with nulls. Don't do function if the value is null, to save time,
// because calling the function can be expensive.
outV.noNulls = false;
if (batch.selectedInUse) {
for (int j = 0; j < n; j++) {
int i = sel[j];
outV.isNull[i] = inputCol.isNull[i];
if (!inputCol.isNull[i]) {
outV.vector[i] = evaluateDate(inputCol, i);
}
}
} else {
for (int i = 0; i < n; i++) {
outV.isNull[i] = inputCol.isNull[i];
if (!inputCol.isNull[i]) {
outV.vector[i] = evaluateDate(inputCol, i);
}
}
}
}
break;
case TIMESTAMP:
if (inputCol.noNulls) {
outV.noNulls = true;
if (batch.selectedInUse) {
for (int j = 0; j < n; j++) {
int i = sel[j];
outV.vector[i] = evaluateTimestamp(inputCol, i);
}
} else {
for (int i = 0; i < n; i++) {
outV.vector[i] = evaluateTimestamp(inputCol, i);
}
}
} else {
// Handle case with nulls. Don't do function if the value is null, to save time,
// because calling the function can be expensive.
outV.noNulls = false;
if (batch.selectedInUse) {
for (int j = 0; j < n; j++) {
int i = sel[j];
outV.isNull[i] = inputCol.isNull[i];
if (!inputCol.isNull[i]) {
outV.vector[i] = evaluateTimestamp(inputCol, i);
}
}
} else {
for (int i = 0; i < n; i++) {
outV.isNull[i] = inputCol.isNull[i];
if (!inputCol.isNull[i]) {
outV.vector[i] = evaluateTimestamp(inputCol, i);
}
}
}
}
break;
case STRING:
if (inputCol.noNulls) {
outV.noNulls = true;
if (batch.selectedInUse) {
for (int j = 0; j < n; j++) {
int i = sel[j];
evaluateString(inputCol, outV, i);
}
} else {
for (int i = 0; i < n; i++) {
evaluateString(inputCol, outV, i);
}
}
} else {
// Handle case with nulls. Don't do function if the value is null, to save time,
// because calling the function can be expensive.
outV.noNulls = false;
if (batch.selectedInUse) {
for (int j = 0; j < n; j++) {
int i = sel[j];
outV.isNull[i] = inputCol.isNull[i];
if (!inputCol.isNull[i]) {
evaluateString(inputCol, outV, i);
}
}
} else {
for (int i = 0; i < n; i++) {
outV.isNull[i] = inputCol.isNull[i];
if (!inputCol.isNull[i]) {
evaluateString(inputCol, outV, i);
}
}
}
}
break;
}
}
protected int evaluateTimestamp(ColumnVector columnVector, int index) {
LongColumnVector lcv = (LongColumnVector) columnVector;
date.setTime(lcv.vector[index] / 1000000);
return baseDate - DateWritable.dateToDays(date);
}
