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71 lines
2.3 KiB
Python
71 lines
2.3 KiB
Python
# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations
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# under the License.
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import logging
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from typing import Dict, Type, Union
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from sqlalchemy.orm import Session
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from superset.connectors.sqla.models import SqlaTable
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from superset.dao.base import BaseDAO
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from superset.dao.exceptions import DatasourceNotFound, DatasourceTypeNotSupportedError
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from superset.datasets.models import Dataset
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from superset.models.sql_lab import Query, SavedQuery
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from superset.tables.models import Table
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from superset.utils.core import DatasourceType
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logger = logging.getLogger(__name__)
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Datasource = Union[Dataset, SqlaTable, Table, Query, SavedQuery]
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class DatasourceDAO(BaseDAO):
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sources: Dict[Union[DatasourceType, str], Type[Datasource]] = {
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DatasourceType.TABLE: SqlaTable,
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DatasourceType.QUERY: Query,
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DatasourceType.SAVEDQUERY: SavedQuery,
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DatasourceType.DATASET: Dataset,
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DatasourceType.SLTABLE: Table,
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}
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@classmethod
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def get_datasource(
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cls,
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session: Session,
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datasource_type: Union[DatasourceType, str],
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datasource_id: int,
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) -> Datasource:
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if datasource_type not in cls.sources:
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raise DatasourceTypeNotSupportedError()
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datasource = (
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session.query(cls.sources[datasource_type])
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.filter_by(id=datasource_id)
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.one_or_none()
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)
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if not datasource:
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logger.warning(
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"Datasource not found datasource_type: %s, datasource_id: %s",
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datasource_type,
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datasource_id,
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)
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raise DatasourceNotFound()
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return datasource
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