// 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);
}
}
public override bool Equals(object o)
{
if (o == null || o.GetType() != GetType())
{
return(false);
}
else if (o == this)
{
return(true);
}
else
{
IList <StructField> other = ((OrcStructInspector)o).fields;
if (other.Count != fields.Count)
{
return(false);
}
for (int i = 0; i < fields.Count; ++i)
{
StructField left = other[i];
StructField right = fields[i];
if (!string.Equals(left.getFieldName(), right.getFieldName(), StringComparison.OrdinalIgnoreCase) &&
left.getFieldObjectInspector().Equals(right.getFieldObjectInspector()))
{
return(false);
}
}
return(true);
}
}
public override string getTypeName()
{
StringBuilder buffer = new StringBuilder();
buffer.Append("struct<");
for (int i = 0; i < fields.Count; ++i)
{
StructField field = fields[i];
if (i != 0)
{
buffer.Append(",");
}
buffer.Append(field.getFieldName());
buffer.Append(":");
buffer.Append(field.getFieldObjectInspector().getTypeName());
}
buffer.Append(">");
return(buffer.ToString());
}
