@Override
  public void setCurrentStripeOffsets(long currentKnownTornStart,
      long firstStartOffset, long lastStartOffset, long fileOffset) {
    if (isAsync) {
      addWriteOp(new SetStripeDataOperation(
          currentKnownTornStart, firstStartOffset, lastStartOffset, fileOffset));
    } else {
      cacheWriter.setCurrentStripeOffsets(
          currentKnownTornStart, firstStartOffset, lastStartOffset, fileOffset);
    }
  }
The class that writes rows from a text reader to an ORC writer using VectorDeserializeRow.
llap-server/src/java/org/apache/hadoop/hive/llap/io/encoded/VectorDeserializeOrcWriter.java