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91 lines
3.2 KiB
Python
91 lines
3.2 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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# isort:skip_file
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import json
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import logging
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from typing import Iterator, List, Tuple
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import yaml
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from superset.commands.base import BaseCommand
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from superset.databases.commands.exceptions import DatabaseNotFoundError
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from superset.databases.dao import DatabaseDAO
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from superset.utils.dict_import_export import IMPORT_EXPORT_VERSION, sanitize
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from superset.models.core import Database
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logger = logging.getLogger(__name__)
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class ExportDatabasesCommand(BaseCommand):
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def __init__(self, database_ids: List[int]):
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self.database_ids = database_ids
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# this will be set when calling validate()
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self._models: List[Database] = []
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@staticmethod
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def export_database(database: Database) -> Iterator[Tuple[str, str]]:
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database_slug = sanitize(database.database_name)
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file_name = f"databases/{database_slug}.yaml"
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payload = database.export_to_dict(
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recursive=False,
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include_parent_ref=False,
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include_defaults=True,
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export_uuids=True,
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)
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# TODO (betodealmeida): move this logic to export_to_dict once this
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# becomes the default export endpoint
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if "extra" in payload:
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try:
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payload["extra"] = json.loads(payload["extra"])
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except json.decoder.JSONDecodeError:
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logger.info("Unable to decode `extra` field: %s", payload["extra"])
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payload["version"] = IMPORT_EXPORT_VERSION
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file_content = yaml.safe_dump(payload, sort_keys=False)
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yield file_name, file_content
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for dataset in database.tables:
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dataset_slug = sanitize(dataset.table_name)
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file_name = f"datasets/{database_slug}/{dataset_slug}.yaml"
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payload = dataset.export_to_dict(
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recursive=True,
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include_parent_ref=False,
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include_defaults=True,
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export_uuids=True,
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)
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payload["version"] = IMPORT_EXPORT_VERSION
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payload["database_uuid"] = str(database.uuid)
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file_content = yaml.safe_dump(payload, sort_keys=False)
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yield file_name, file_content
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def run(self) -> Iterator[Tuple[str, str]]:
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self.validate()
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for database in self._models:
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yield from self.export_database(database)
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def validate(self) -> None:
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self._models = DatabaseDAO.find_by_ids(self.database_ids)
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if len(self._models) != len(self.database_ids):
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raise DatabaseNotFoundError()
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