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109 lines
4.2 KiB
Python
Executable File
109 lines
4.2 KiB
Python
Executable File
# 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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from __future__ import annotations
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import logging
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from datetime import datetime
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from typing import Any, TYPE_CHECKING
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from sqlalchemy import types
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from superset.constants import TimeGrain
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from superset.db_engine_specs.base import BaseEngineSpec
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from superset.utils import json
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if TYPE_CHECKING:
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from superset.models.core import Database
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logger = logging.getLogger(__name__)
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class YDBEngineSpec(BaseEngineSpec):
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engine = "yql"
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engine_aliases = {"ydb", "yql+ydb"}
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engine_name = "YDB"
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default_driver = "ydb"
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sqlalchemy_uri_placeholder = "ydb://{host}:{port}/{database_name}"
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# pylint: disable=invalid-name
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encrypted_extra_sensitive_fields = {"$.connect_args.credentials", "$.credentials"}
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disable_ssh_tunneling = False
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supports_file_upload = False
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allows_alias_in_orderby = True
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_time_grain_expressions = {
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None: "{col}",
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TimeGrain.SECOND: "DateTime::MakeDatetime(DateTime::StartOf({col}, Interval('PT1S')))",
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TimeGrain.THIRTY_SECONDS: "DateTime::MakeDatetime(DateTime::StartOf({col}, Interval('PT30S')))",
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TimeGrain.MINUTE: "DateTime::MakeDatetime(DateTime::StartOf({col}, Interval('PT1M')))",
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TimeGrain.FIVE_MINUTES: "DateTime::MakeDatetime(DateTime::StartOf({col}, Interval('PT5M')))",
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TimeGrain.TEN_MINUTES: "DateTime::MakeDatetime(DateTime::StartOf({col}, Interval('PT10M')))",
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TimeGrain.FIFTEEN_MINUTES: "DateTime::MakeDatetime(DateTime::StartOf({col}, Interval('PT15M')))",
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TimeGrain.THIRTY_MINUTES: "DateTime::MakeDatetime(DateTime::StartOf({col}, Interval('PT30M')))",
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TimeGrain.HOUR: "DateTime::MakeDatetime(DateTime::StartOf({col}, Interval('PT1H')))",
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TimeGrain.DAY: "DateTime::MakeDatetime(DateTime::StartOf({col}, Interval('P1D')))",
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TimeGrain.WEEK: "DateTime::MakeDatetime(DateTime::StartOfWeek({col}))",
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TimeGrain.MONTH: "DateTime::MakeDatetime(DateTime::StartOfMonth({col}))",
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TimeGrain.QUARTER: "DateTime::MakeDatetime(DateTime::StartOfQuarter({col}))",
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TimeGrain.YEAR: "DateTime::MakeDatetime(DateTime::StartOfYear({col}))",
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}
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@classmethod
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def epoch_to_dttm(cls) -> str:
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return "DateTime::MakeDatetime({col})"
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@classmethod
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def convert_dttm(
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cls, target_type: str, dttm: datetime, db_extra: dict[str, Any] | None = None
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) -> str | None:
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sqla_type = cls.get_sqla_column_type(target_type)
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if isinstance(sqla_type, types.Date):
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return f"DateTime::MakeDate(DateTime::ParseIso8601('{dttm.date().isoformat()}'))"
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if isinstance(sqla_type, types.DateTime):
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return f"""DateTime::MakeDatetime(DateTime::ParseIso8601('{dttm.isoformat(sep="T", timespec="seconds")}'))"""
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return None
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@staticmethod
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def update_params_from_encrypted_extra(
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database: Database,
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params: dict[str, Any],
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) -> None:
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if not database.encrypted_extra:
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return
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try:
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encrypted_extra = json.loads(database.encrypted_extra)
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connect_args = params.setdefault("connect_args", {})
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if "protocol" in encrypted_extra:
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connect_args["protocol"] = encrypted_extra["protocol"]
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if "credentials" in encrypted_extra:
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credentials_info = encrypted_extra["credentials"]
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connect_args["credentials"] = credentials_info
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except json.JSONDecodeError as ex:
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logger.error(ex, exc_info=True)
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raise
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