[FEATURE] ParameterBuilder for Computing Average Unexpected Values Fractions for any Map Metric

great_expectations/rule_based_profiler/parameter_builder/mean_unexpected_metric_multi_batch_parameter_builder.py

@@ -0,0 +1,191 @@
+from typing import Any, Dict, List, Optional, Tuple, Union
+
+import numpy as np
+
+from great_expectations.core.batch import Batch, BatchRequest, RuntimeBatchRequest
+from great_expectations.rule_based_profiler.helpers.util import (
+    get_parameter_value_and_validate_return_type,
+)
+from great_expectations.rule_based_profiler.parameter_builder import (
+    MetricMultiBatchParameterBuilder,
+)
+from great_expectations.rule_based_profiler.parameter_builder.parameter_builder import (
+    MetricValues,
+)
+from great_expectations.rule_based_profiler.types import (
+    Domain,
+    ParameterContainer,
+    ParameterNode,
+)
+
+
+class MeanUnexpectedMapMetricMultiBatchParameterBuilder(
+    MetricMultiBatchParameterBuilder
+):
+    """
+    Compute mean unexpected count ratio (as a fraction) of a specified map-style metric across all specified batches.
+    """
+
+    def __init__(
+        self,
+        name: str,
+        map_metric_name: str,
+        total_count_parameter_builder_name: str,
+        null_count_parameter_builder_name: Optional[str] = None,
+        metric_domain_kwargs: Optional[Union[str, dict]] = None,
+        metric_value_kwargs: Optional[Union[str, dict]] = None,
+        batch_list: Optional[List[Batch]] = None,
+        batch_request: Optional[Union[BatchRequest, RuntimeBatchRequest, dict]] = None,
+        json_serialize: Union[str, bool] = True,
+        data_context: Optional["DataContext"] = None,  # noqa: F821
+    ):
+        """
+        Args:
+            name: the name of this parameter -- this is user-specified parameter name (from configuration);
+            it is not the fully-qualified parameter name; a fully-qualified parameter name must start with "$parameter."
+            and may contain one or more subsequent parts (e.g., "$parameter.<my_param_from_config>.<metric_name>").
+            map_metric_name: the name of a map metric (must be a supported and registered map metric); the suffix
+            ".unexpected_count" will be appended to "map_metric_name" to be used in MetricConfiguration to get values.
+            total_count_parameter_builder_name: name of parameter that computes total_count (of rows in Batch).
+            null_count_parameter_builder_name: name of parameter that computes null_count (of domain values in Batch).
+            metric_domain_kwargs: used in MetricConfiguration
+            metric_value_kwargs: used in MetricConfiguration
+            batch_list: explicitly passed Batch objects for parameter computation (take precedence over batch_request).
+            batch_request: specified in ParameterBuilder configuration to get Batch objects for parameter computation.
+            json_serialize: If True (default), convert computed value to JSON prior to saving results.
+            data_context: DataContext
+        """
+        super().__init__(
+            name=name,
+            metric_name=f"{map_metric_name}.unexpected_count",
+            metric_domain_kwargs=metric_domain_kwargs,
+            metric_value_kwargs=metric_value_kwargs,
+            enforce_numeric_metric=True,
+            replace_nan_with_zero=True,
+            reduce_scalar_metric=True,
+            batch_list=batch_list,
+            batch_request=batch_request,
+            json_serialize=json_serialize,
+            data_context=data_context,
+        )
+
+        self._map_metric_name = map_metric_name
+        self._total_count_parameter_builder_name = total_count_parameter_builder_name
+        self._null_count_parameter_builder_name = null_count_parameter_builder_name
+
+    @property
+    def map_metric_name(self) -> str:
+        return self._map_metric_name
+
+    @property
+    def total_count_parameter_builder_name(self) -> str:
+        return self._total_count_parameter_builder_name
+
+    @property
+    def null_count_parameter_builder_name(self) -> Optional[str]:
+        return self._null_count_parameter_builder_name
+
+    def _build_parameters(
+        self,
+        parameter_container: ParameterContainer,
+        domain: Domain,
+        variables: Optional[ParameterContainer] = None,
+        parameters: Optional[Dict[str, ParameterContainer]] = None,
+    ) -> Tuple[Any, dict]:
+        """
+        Builds ParameterContainer object that holds ParameterNode objects with attribute name-value pairs and optional
+        details.
+
+        return: Tuple containing computed_parameter_value and parameter_computation_details metadata.
+        """
+        # Obtain total_count_parameter_builder_name from "rule state" (i.e., variables and parameters); from instance variable otherwise.
+        total_count_parameter_builder_name: str = (
+            get_parameter_value_and_validate_return_type(
+                domain=domain,
+                parameter_reference=self.total_count_parameter_builder_name,
+                expected_return_type=str,
+                variables=variables,
+                parameters=parameters,
+            )
+        )
+
+        fully_qualified_total_count_parameter_builder_name: str = (
+            f"$parameter.{total_count_parameter_builder_name}"
+        )
+        # Obtain total_count from "rule state" (i.e., variables and parameters); from instance variable otherwise.
+        total_count_parameter_node: ParameterNode = (
+            get_parameter_value_and_validate_return_type(
+                domain=domain,
+                parameter_reference=fully_qualified_total_count_parameter_builder_name,
+                expected_return_type=None,
+                variables=variables,
+                parameters=parameters,
+            )
+        )
+        total_count_values: MetricValues = total_count_parameter_node.value
+
+        # Obtain null_count_parameter_builder_name from "rule state" (i.e., variables and parameters); from instance variable otherwise.
+        null_count_parameter_builder_name: str = (
+            get_parameter_value_and_validate_return_type(
+                domain=domain,
+                parameter_reference=self.null_count_parameter_builder_name,
+                expected_return_type=str,
+                variables=variables,
+                parameters=parameters,
+            )
+        )
+
+        batch_ids: Optional[List[str]] = self.get_batch_ids(
+            domain=domain,
+            variables=variables,
+            parameters=parameters,
+        )
+        num_batch_ids: int = len(batch_ids)
+
+        null_count_values: MetricValues
+        if null_count_parameter_builder_name is None:
+            null_count_values = np.zeros(shape=(num_batch_ids,))
+        else:
+            fully_qualified_null_count_parameter_builder_name: str = (
+                f"$parameter.{null_count_parameter_builder_name}"
+            )
+            # Obtain null_count from "rule state" (i.e., variables and parameters); from instance variable otherwise.
+            null_count_parameter_node: ParameterNode = get_parameter_value_and_validate_return_type(
+                domain=domain,
+                parameter_reference=fully_qualified_null_count_parameter_builder_name,
+                expected_return_type=None,
+                variables=variables,
+                parameters=parameters,
+            )
+            null_count_values = null_count_parameter_node.value
+
+        nonnull_count_values: np.ndarray = total_count_values - null_count_values
+
+        # Compute "unexpected_count" corresponding to "map_metric_name" (given as argument to this "ParameterBuilder").
+        super().build_parameters(
+            parameter_container=parameter_container,
+            domain=domain,
+            variables=variables,
+            parameters=parameters,
+            parameter_computation_impl=super()._build_parameters,
+        )
+
+        # Retrieve "unexpected_count" corresponding to "map_metric_name" (given as argument to this "ParameterBuilder").
+        parameter_node: ParameterNode = get_parameter_value_and_validate_return_type(
+            domain=domain,
+            parameter_reference=self.fully_qualified_parameter_name,
+            expected_return_type=None,
+            variables=variables,
+            parameters=parameters,
+        )
+        unexpected_count_values: MetricValues = parameter_node.value
+
+        unexpected_count_ratio_values: np.ndarray = (
+            unexpected_count_values / nonnull_count_values
+        )
+        mean_unexpected_count_ratio: np.float64 = np.mean(unexpected_count_ratio_values)
+
+        return (
+            mean_unexpected_count_ratio,
+            parameter_node.details,
+        )

great_expectations/rule_based_profiler/parameter_builder/metric_multi_batch_parameter_builder.py

@@ -31,6 +31,7 @@ def __init__(
         reduce_scalar_metric: Union[str, bool] = True,
         batch_list: Optional[List[Batch]] = None,
         batch_request: Optional[Union[BatchRequest, RuntimeBatchRequest, dict]] = None,
+        json_serialize: Union[str, bool] = True,
         data_context: Optional["DataContext"] = None,  # noqa: F821
     ):
         """
@@ -47,13 +48,15 @@ def __init__(
             reduce_scalar_metric: if True (default), then reduces computation of 1-dimensional metric to scalar value.
             batch_list: explicitly passed Batch objects for parameter computation (take precedence over batch_request).
             batch_request: specified in ParameterBuilder configuration to get Batch objects for parameter computation.
+            json_serialize: If True (default), convert computed value to JSON prior to saving results.
             data_context: DataContext
         """
         super().__init__(
             name=name,
-            data_context=data_context,
             batch_list=batch_list,
             batch_request=batch_request,
+            json_serialize=json_serialize,
+            data_context=data_context,
         )
 
         self._metric_name = metric_name

great_expectations/rule_based_profiler/parameter_builder/numeric_metric_range_multi_batch_parameter_builder.py

@@ -70,6 +70,7 @@ def __init__(
         ] = None,
         batch_list: Optional[List[Batch]] = None,
         batch_request: Optional[Union[BatchRequest, RuntimeBatchRequest, dict]] = None,
+        json_serialize: Union[str, bool] = True,
         data_context: Optional["DataContext"] = None,  # noqa: F821
     ):
         """
@@ -96,12 +97,14 @@ def __init__(
             (i.e., lower_bound, upper_bound) to take on values outside the specified bounds when packaged on output.
             batch_list: explicitly passed Batch objects for parameter computation (take precedence over batch_request).
             batch_request: specified in ParameterBuilder configuration to get Batch objects for parameter computation.
+            json_serialize: If True (default), convert computed value to JSON prior to saving results.
             data_context: DataContext
         """
         super().__init__(
             name=name,
             batch_list=batch_list,
             batch_request=batch_request,
+            json_serialize=json_serialize,
             data_context=data_context,
         )
 

great_expectations/rule_based_profiler/parameter_builder/parameter_builder.py

@@ -92,6 +92,7 @@ def __init__(
         name: str,
         batch_list: Optional[List[Batch]] = None,
         batch_request: Optional[Union[BatchRequest, RuntimeBatchRequest, dict]] = None,
+        json_serialize: Union[str, bool] = True,
         data_context: Optional["DataContext"] = None,  # noqa: F821
     ):
         """
@@ -103,6 +104,7 @@ def __init__(
             and may contain one or more subsequent parts (e.g., "$parameter.<my_param_from_config>.<metric_name>").
             batch_list: explicitly passed Batch objects for parameter computation (take precedence over batch_request).
             batch_request: specified in ParameterBuilder configuration to get Batch objects for parameter computation.
+            json_serialize: If True (default), convert computed value to JSON prior to saving results.
             data_context: DataContext
         """
         super().__init__(
@@ -113,6 +115,8 @@ def __init__(
 
         self._name = name
 
+        self._json_serialize = json_serialize
+
     def build_parameters(
         self,
         parameter_container: ParameterContainer,
@@ -137,9 +141,20 @@ def build_parameters(
             parameters=parameters,
         )
 
+        # Obtain json_serialize directive from "rule state" (i.e., variables and parameters); from instance variable otherwise.
+        json_serialize: bool = get_parameter_value_and_validate_return_type(
+            domain=domain,
+            parameter_reference=self.json_serialize,
+            expected_return_type=bool,
+            variables=variables,
+            parameters=parameters,
+        )
+
         parameter_values: Dict[str, Any] = {
             self.fully_qualified_parameter_name: {
-                "value": convert_to_json_serializable(data=computed_parameter_value),
+                "value": convert_to_json_serializable(data=computed_parameter_value)
+                if json_serialize
+                else computed_parameter_value,
                 "details": parameter_computation_details,
             },
         }
@@ -157,6 +172,14 @@ def fully_qualified_parameter_name(self) -> str:
     def name(self) -> str:
         return self._name
 
+    @property
+    def json_serialize(self) -> bool:
+        return self._json_serialize
+
+    @property
+    def data_context(self) -> "DataContext":  # noqa: F821
+        return self._data_context
+
     """
     Full getter/setter accessors for "batch_request" and "batch_list" are for configuring ParameterBuilder dynamically.
     """
@@ -179,10 +202,6 @@ def batch_list(self) -> Optional[List[Batch]]:
     def batch_list(self, value: List[Batch]) -> None:
         self._batch_list = value
 
-    @property
-    def data_context(self) -> "DataContext":  # noqa: F821
-        return self._data_context
-
     @abstractmethod
     def _build_parameters(
         self,

great_expectations/rule_based_profiler/parameter_builder/regex_pattern_string_parameter_builder.py

@@ -49,6 +49,7 @@ def __init__(
         candidate_regexes: Optional[Union[Iterable[str], str]] = None,
         batch_list: Optional[List[Batch]] = None,
         batch_request: Optional[Union[BatchRequest, RuntimeBatchRequest, dict]] = None,
+        json_serialize: Union[str, bool] = True,
         data_context: Optional["DataContext"] = None,  # noqa: F821
     ):
         """
@@ -61,13 +62,15 @@ def __init__(
             candidate_regexes: a list of candidate regex strings that will REPLACE the default
             batch_list: Optional[List[Batch]] = None,
             batch_request: specified in ParameterBuilder configuration to get Batch objects for parameter computation.
+            json_serialize: If True (default), convert computed value to JSON prior to saving results.
             data_context: DataContext
         """
         super().__init__(
             name=name,
             batch_list=batch_list,
-            data_context=data_context,
             batch_request=batch_request,
+            json_serialize=json_serialize,
+            data_context=data_context,
         )
 
         self._metric_domain_kwargs = metric_domain_kwargs

great_expectations/rule_based_profiler/parameter_builder/simple_date_format_string_parameter_builder.py

@@ -94,6 +94,7 @@ def __init__(
         candidate_strings: Optional[Union[Iterable[str], str]] = None,
         batch_list: Optional[List[Batch]] = None,
         batch_request: Optional[Union[BatchRequest, RuntimeBatchRequest, dict]] = None,
+        json_serialize: bool = True,
         data_context: Optional["DataContext"] = None,  # noqa: F821
     ):
         """
@@ -108,13 +109,15 @@ def __init__(
             candidate_strings: a list of candidate date format strings that will replace the default
             batch_list: explicitly passed Batch objects for parameter computation (take precedence over batch_request).
             batch_request: specified in ParameterBuilder configuration to get Batch objects for parameter computation.
+            json_serialize: If True (default), convert computed value to JSON prior to saving results.
             data_context: DataContext
         """
         super().__init__(
             name=name,
-            data_context=data_context,
             batch_list=batch_list,
             batch_request=batch_request,
+            json_serialize=json_serialize,
+            data_context=data_context,
         )
 
         self._metric_domain_kwargs = metric_domain_kwargs

great_expectations/rule_based_profiler/parameter_builder/value_set_multi_batch_parameter_builder.py

@@ -40,6 +40,7 @@ def __init__(
         metric_value_kwargs: Optional[Union[str, dict]] = None,
         batch_list: Optional[List[Batch]] = None,
         batch_request: Optional[Union[BatchRequest, RuntimeBatchRequest, dict]] = None,
+        json_serialize: Union[str, bool] = True,
         data_context: Optional["DataContext"] = None,  # noqa: F821
     ):
         """
@@ -51,6 +52,7 @@ def __init__(
             metric_value_kwargs: used in MetricConfiguration
             batch_list: explicitly passed Batch objects for parameter computation (take precedence over batch_request).
             batch_request: specified in ParameterBuilder configuration to get Batch objects for parameter computation.
+            json_serialize: If True (default), convert computed value to JSON prior to saving results.
             data_context: DataContext
         """
         super().__init__(
@@ -63,6 +65,7 @@ def __init__(
             reduce_scalar_metric=False,
             batch_list=batch_list,
             batch_request=batch_request,
+            json_serialize=json_serialize,
             data_context=data_context,
         )