public GenericUDAFEvaluator getEvaluator()

in src/main/java/org/apache/datasketches/hive/theta/UnionSketchUDAF.java [76:97]

• 17 lines of code
• 5 McCabe index (conditional complexity)

  public GenericUDAFEvaluator getEvaluator(final GenericUDAFParameterInfo info) throws SemanticException {
    final ObjectInspector[] parameters = info.getParameterObjectInspectors();

    if (parameters.length < 1) {
      throw new UDFArgumentException("Please specify at least 1 argument");
    }

    if (parameters.length > 3) {
      throw new UDFArgumentTypeException(parameters.length - 1, "Please specify no more than 3 arguments");
    }

    ObjectInspectorValidator.validateGivenPrimitiveCategory(parameters[0], 0, PrimitiveCategory.BINARY);

    if (parameters.length > 1) {
      ObjectInspectorValidator.validateIntegralParameter(parameters[1], 1);
    }

    if (parameters.length > 2) {
      ObjectInspectorValidator.validateIntegralParameter(parameters[2], 2);
    }
    return new UnionSketchUDAFEvaluator();
  }