@Override
protected SymbolFunctionResult match(Object row, PTFPartitionIterator<Object> pItr)
throws HiveException {
result.matches = true;
SymbolFunctionResult rowResult = symbolFn.match(row, pItr);
while (rowResult.matches && pItr.hasNext()) {
row = pItr.next();
rowResult = symbolFn.match(row, pItr);
}
result.nextRow = pItr.getIndex();
if (pItr.hasNext()) {
result.nextRow -= 1;
}
return result;
}
public static ArrayList<Object> getPath(
Object currRow, ObjectInspector rowOI, PTFPartitionIterator<Object> pItr, int sz)
throws HiveException {
int idx = pItr.getIndex() - 1;
ArrayList<Object> path = new ArrayList<Object>();
path.add(ObjectInspectorUtils.copyToStandardObject(currRow, rowOI));
int pSz = 1;
while (pSz < sz && pItr.hasNext()) {
currRow = pItr.next();
path.add(ObjectInspectorUtils.copyToStandardObject(currRow, rowOI));
pSz++;
}
pItr.resetToIndex(idx);
return path;
}
@Override
public void execute(PTFPartitionIterator<Object> pItr, PTFPartition outP) throws HiveException {
while (pItr.hasNext()) {
Object iRow = pItr.next();
SymbolFunctionResult syFnRes = SymbolFunction.match(syFn, iRow, pItr);
if (syFnRes.matches) {
int sz = syFnRes.nextRow - (pItr.getIndex() - 1);
Object selectListInput =
MatchPath.getSelectListInput(
iRow, tableDef.getInput().getOutputShape().getOI(), pItr, sz);
ArrayList<Object> oRow = new ArrayList<Object>();
for (ExprNodeEvaluator resExprEval : resultExprInfo.resultExprEvals) {
oRow.add(resExprEval.evaluate(selectListInput));
}
outP.append(oRow);
}
}
}