mirror of
https://github.com/open-metadata/OpenMetadata.git
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1cbdfb3ae7
* fix: sample data ingestion to match entity profiler column setting * fix: python linting * fix: updated fn call * fix: added logic to handle json filed in datalake connector * fix: handle NA values in parsing * fix: reverted sampler changes from #13338 * fix: reverted metric changes from #13338 * fix: added datalake profiler ingestion test * fix: python linting * fix: removed normalization of json blob in NoSQL db
73 lines
2.4 KiB
Python
73 lines
2.4 KiB
Python
# Copyright 2021 Collate
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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# http://www.apache.org/licenses/LICENSE-2.0
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""
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Interface for sampler
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"""
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from abc import ABC, abstractmethod
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from typing import Dict, List, Optional, Union
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from sqlalchemy import Column
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from metadata.generated.schema.entity.data.table import TableData
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from metadata.profiler.api.models import ProfileSampleConfig
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from metadata.utils.sqa_like_column import SQALikeColumn
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class SamplerInterface(ABC):
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"""Sampler interface"""
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def __init__(
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self,
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client,
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table,
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profile_sample_config: Optional[ProfileSampleConfig] = None,
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partition_details: Optional[Dict] = None,
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profile_sample_query: Optional[str] = None,
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):
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self.profile_sample = None
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self.profile_sample_type = None
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if profile_sample_config:
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self.profile_sample = profile_sample_config.profile_sample
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self.profile_sample_type = profile_sample_config.profile_sample_type
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self.client = client
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self.table = table
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self._profile_sample_query = profile_sample_query
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self.sample_limit = 100
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self._sample_rows = None
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self._partition_details = partition_details
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@abstractmethod
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def _rdn_sample_from_user_query(self):
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"""Get random sample from user query"""
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raise NotImplementedError
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@abstractmethod
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def _fetch_sample_data_from_user_query(self) -> TableData:
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"""Fetch sample data from user query"""
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raise NotImplementedError
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@abstractmethod
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def random_sample(self):
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"""Get random sample"""
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raise NotImplementedError
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@abstractmethod
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def fetch_sample_data(
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self, columns: Optional[Union[List[Column], List[SQALikeColumn]]]
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) -> TableData:
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"""Fetch sample data
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Args:
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columns (Optional[List]): List of columns to fetch
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"""
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raise NotImplementedError
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