private void addWriteOp(WriteOperation wo) throws AssertionError {
    if (queue.offer(wo)) return;
    throw new AssertionError("Queue full"); // This should never happen with linked list queue.
  }
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