public GenericUDAFEvaluator getEvaluator()

in src/main/java/org/apache/datasketches/hive/frequencies/UnionItemsSketchUDAF.java [41:56]

• 16 lines of code
• 4 McCabe index (conditional complexity)

  public GenericUDAFEvaluator getEvaluator(final GenericUDAFParameterInfo info) throws SemanticException {
    final ObjectInspector[] inspectors = info.getParameterObjectInspectors();
    if (inspectors.length != 1) {
      throw new UDFArgumentException("One argument expected");
    }
    if (inspectors[0].getCategory() != ObjectInspector.Category.PRIMITIVE) {
      throw new UDFArgumentTypeException(0, "Primitive argument expected, but "
          + inspectors[0].getTypeName() + " was recieved");
    }
    final PrimitiveObjectInspector inspector = (PrimitiveObjectInspector) inspectors[0];
    if (inspector.getPrimitiveCategory() != PrimitiveObjectInspector.PrimitiveCategory.BINARY) {
      throw new UDFArgumentTypeException(0, "Binary argument expected, but "
          + inspector.getPrimitiveCategory().name() + " was received");
    }
    return createEvaluator();
  }