// Find the record identifier column (if there) and return a possibly new ObjectInspector that
// will strain out the record id for the underlying writer.
private ObjectInspector findRecId(ObjectInspector inspector, int rowIdColNum)
{
if (!(inspector is StructObjectInspector))
{
throw new InvalidOperationException("Serious problem, expected a StructObjectInspector, but got a " +
inspector.GetType().FullName);
}
if (rowIdColNum < 0)
{
return(inspector);
}
else
{
RecIdStrippingObjectInspector newInspector =
new RecIdStrippingObjectInspector(inspector, rowIdColNum);
recIdField = newInspector.getRecId();
List <StructField> fields =
((StructObjectInspector)recIdField.getFieldObjectInspector()).getAllStructFieldRefs();
// Go by position, not field name, as field names aren't guaranteed. The order of fields
// in RecordIdentifier is transactionId, bucketId, rowId
originalTxnField = fields[0];
origTxnInspector = (LongObjectInspector)originalTxnField.getFieldObjectInspector();
rowIdField = fields[2];
rowIdInspector = (LongObjectInspector)rowIdField.getFieldObjectInspector();
recIdInspector = (StructObjectInspector)recIdField.getFieldObjectInspector();
return(newInspector);
}
}
// Find the record identifier column (if there) and return a possibly new ObjectInspector that
// will strain out the record id for the underlying writer.
private ObjectInspector findRecId(ObjectInspector inspector, int rowIdColNum)
{
if (!(inspector is StructObjectInspector))
{
throw new InvalidOperationException("Serious problem, expected a StructObjectInspector, but got a " +
inspector.GetType().FullName);
}
if (rowIdColNum < 0)
{
return inspector;
}
else
{
RecIdStrippingObjectInspector newInspector =
new RecIdStrippingObjectInspector(inspector, rowIdColNum);
recIdField = newInspector.getRecId();
List<StructField> fields =
((StructObjectInspector)recIdField.getFieldObjectInspector()).getAllStructFieldRefs();
// Go by position, not field name, as field names aren't guaranteed. The order of fields
// in RecordIdentifier is transactionId, bucketId, rowId
originalTxnField = fields[0];
origTxnInspector = (LongObjectInspector)originalTxnField.getFieldObjectInspector();
rowIdField = fields[2];
rowIdInspector = (LongObjectInspector)rowIdField.getFieldObjectInspector();
recIdInspector = (StructObjectInspector)recIdField.getFieldObjectInspector();
return newInspector;
}
}
