tsungchih commented on code in PR #10877: URL: https://github.com/apache/gravitino/pull/10877#discussion_r3167074358
########## clients/client-python/gravitino/api/stats/statistic_values.py: ########## @@ -0,0 +1,238 @@ +# Licensed to the Apache Software Foundation (ASF) under one +# or more contributor license agreements. See the NOTICE file +# distributed with this work for additional information +# regarding copyright ownership. The ASF licenses this file +# to you under the Apache License, Version 2.0 (the +# "License"); you may not use this file except in compliance +# with the License. You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, +# software distributed under the License is distributed on an +# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +# KIND, either express or implied. See the License for the +# specific language governing permissions and limitations +# under the License. + + +from typing import Any, TypeVar + +from gravitino.api.rel.types.type import Type +from gravitino.api.rel.types.types import Types +from gravitino.api.stats.statistic_value import StatisticValue +from gravitino.utils.precondition import Precondition + +T = TypeVar("T") + + +class StatisticValues: + """A class representing a collection of statistic values.""" + + @staticmethod + def boolean_value(value: bool) -> "BooleanValue": + """Creates a statistic value that holds a boolean value. + + Args: + value: the boolean value to be held by this statistic value + + Returns: + A BooleanValue instance containing the provided boolean value + """ + return StatisticValues.BooleanValue(value) + + @staticmethod + def long_value(value: int) -> "LongValue": + """Creates a statistic value that holds a long value. + + Args: + value: the long value to be held by this statistic value + + Returns: + A LongValue instance containing the provided long value + """ + return StatisticValues.LongValue(value) + + @staticmethod + def double_value(value: float) -> "DoubleValue": + """Creates a statistic value that holds a double value. + + Args: + value: the double value to be held by this statistic value + + Returns: + A DoubleValue instance containing the provided double value + """ + return StatisticValues.DoubleValue(value) + + @staticmethod + def string_value(value: str) -> "StringValue": + """Creates a statistic value that holds a string value. + + Args: + value: the string value to be held by this statistic value + + Returns: + A StringValue instance containing the provided string value + """ + return StatisticValues.StringValue(value) + + @staticmethod + def list_value(value_list: list[StatisticValue[T]]) -> "ListValue[T]": + """Creates a statistic value that holds a list of other statistic values. + + Args: + value_list: the list of statistic values to be held by this statistic value + + Returns: + A ListValue instance containing the provided list of statistic values + """ + return StatisticValues.ListValue(value_list) + + @staticmethod + def object_value(value_list: dict[str, StatisticValue[Any]]) -> "ObjectValue[Any]": + """Creates a statistic value that holds a list of other statistic values. + + Args: + value_list: the list of statistic values to be held by this statistic value + + Returns: + A ListValue instance containing the provided list of statistic values + """ + return StatisticValues.ObjectValue(value_list) + + class BooleanValue(StatisticValue[bool]): + """A statistic value that holds a Boolean value.""" + + def __init__(self, value: bool) -> None: + self._value = value + + def value(self) -> bool: + return self._value + + def data_type(self) -> Type: + return Types.BooleanType.get() + + def __hash__(self) -> int: + return hash(self._value) + + def __eq__(self, other) -> bool: + if not isinstance(other, StatisticValues.BooleanValue): + return False + return self._value == other._value + + class LongValue(StatisticValue[int]): + """A statistic value that holds a Long value.""" + + def __init__(self, value: int) -> None: + self._value = value + + def value(self) -> int: + return self._value + + def data_type(self) -> Type: + return Types.LongType.get() + + def __hash__(self) -> int: + return hash(self._value) + + def __eq__(self, other) -> bool: + if not isinstance(other, StatisticValues.LongValue): + return False + return self._value == other._value + + class DoubleValue(StatisticValue[float]): + """A statistic value that holds a Double value.""" + + def __init__(self, value: float) -> None: + self._value = value + + def value(self) -> float: + return self._value + + def data_type(self) -> Type: + return Types.DoubleType.get() + + def __hash__(self) -> int: + return hash(self._value) + + def __eq__(self, other) -> bool: + if not isinstance(other, StatisticValues.DoubleValue): + return False + return self._value == other._value + + class StringValue(StatisticValue[str]): + """A statistic value that holds a String value.""" + + def __init__(self, value: str) -> None: + self._value = value + + def value(self) -> str: + return self._value + + def data_type(self) -> Type: + return Types.StringType.get() + + def __hash__(self) -> int: + return hash(self._value) + + def __eq__(self, other) -> bool: + if not isinstance(other, StatisticValues.StringValue): + return False + return self._value == other._value + + class ListValue(StatisticValue[list[StatisticValue[T]]]): + """A statistic value that holds a List of other statistic values.""" + + def __init__(self, value_list: list[StatisticValue[T]]) -> None: + Precondition.check_argument( + value_list is not None and len(value_list) > 0, + "Values cannot be null or empty", + ) + data_type = value_list[0].data_type() + Precondition.check_argument( + all(value.data_type() == data_type for value in value_list), + "All values in the list must have the same data type", + ) + self._value_list = value_list + + def value(self) -> list[StatisticValue[T]]: + return self._value_list + + def data_type(self) -> Type: + return Types.ListType.nullable(self._value_list[0].data_type()) + + def __hash__(self) -> int: + return hash(tuple(v.value() for v in self._value_list)) + + def __eq__(self, other) -> bool: + if not isinstance(other, StatisticValues.ListValue): + return False + return self._value_list == other._value_list + + class ObjectValue(StatisticValue[dict[str, StatisticValue[T]]]): + """A statistic value that holds a Map of String keys to other statistic values.""" + + def __init__(self, value_map: dict[str, StatisticValue[T]]) -> None: + Precondition.check_argument( + value_map is not None and len(value_map) > 0, + "Values cannot be null or empty", + ) + self._value_map = value_map + + def value(self) -> dict[str, StatisticValue[T]]: + return self._value_map + + def data_type(self) -> Type: + return Types.StructType.of( + Types.StructType.Field.nullable_field(key, value.data_type()) + for key, value in self._value_map.items() + ) + + def __hash__(self) -> int: + return hash(tuple(v.value() for v in self._value_map.values())) + Review Comment: addressed -- This is an automated message from the Apache Git Service. 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