| # 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 datetime import datetime |
| from typing import Dict, Optional, Type |
| |
| from superset.db_engine_specs.base import BaseEngineSpec |
| from superset.db_engine_specs.exceptions import ( |
| SupersetDBAPIDatabaseError, |
| SupersetDBAPIOperationalError, |
| SupersetDBAPIProgrammingError, |
| ) |
| from superset.utils import core as utils |
| |
| |
| class ElasticSearchEngineSpec(BaseEngineSpec): # pylint: disable=abstract-method |
| engine = "elasticsearch" |
| engine_name = "ElasticSearch (SQL API)" |
| time_groupby_inline = True |
| time_secondary_columns = True |
| allows_joins = False |
| allows_subqueries = True |
| allows_sql_comments = False |
| |
| _time_grain_expressions = { |
| None: "{col}", |
| "PT1S": "HISTOGRAM({col}, INTERVAL 1 SECOND)", |
| "PT1M": "HISTOGRAM({col}, INTERVAL 1 MINUTE)", |
| "PT1H": "HISTOGRAM({col}, INTERVAL 1 HOUR)", |
| "P1D": "HISTOGRAM({col}, INTERVAL 1 DAY)", |
| "P1M": "HISTOGRAM({col}, INTERVAL 1 MONTH)", |
| "P1Y": "HISTOGRAM({col}, INTERVAL 1 YEAR)", |
| } |
| |
| type_code_map: Dict[int, str] = {} # loaded from get_datatype only if needed |
| |
| @classmethod |
| def get_dbapi_exception_mapping(cls) -> Dict[Type[Exception], Type[Exception]]: |
| import es.exceptions as es_exceptions # pylint: disable=import-error |
| |
| return { |
| es_exceptions.DatabaseError: SupersetDBAPIDatabaseError, |
| es_exceptions.OperationalError: SupersetDBAPIOperationalError, |
| es_exceptions.ProgrammingError: SupersetDBAPIProgrammingError, |
| } |
| |
| @classmethod |
| def convert_dttm(cls, target_type: str, dttm: datetime) -> Optional[str]: |
| if target_type.upper() == utils.TemporalType.DATETIME: |
| return f"""CAST('{dttm.isoformat(timespec="seconds")}' AS DATETIME)""" |
| return None |
| |
| |
| class OpenDistroEngineSpec(BaseEngineSpec): # pylint: disable=abstract-method |
| |
| time_groupby_inline = True |
| time_secondary_columns = True |
| allows_joins = False |
| allows_subqueries = True |
| allows_sql_comments = False |
| |
| _time_grain_expressions = { |
| None: "{col}", |
| "PT1S": "date_format({col}, 'yyyy-MM-dd HH:mm:ss.000')", |
| "PT1M": "date_format({col}, 'yyyy-MM-dd HH:mm:00.000')", |
| "PT1H": "date_format({col}, 'yyyy-MM-dd HH:00:00.000')", |
| "P1D": "date_format({col}, 'yyyy-MM-dd 00:00:00.000')", |
| "P1M": "date_format({col}, 'yyyy-MM-01 00:00:00.000')", |
| "P1Y": "date_format({col}, 'yyyy-01-01 00:00:00.000')", |
| } |
| |
| engine = "odelasticsearch" |
| engine_name = "ElasticSearch (OpenDistro SQL)" |
| |
| @classmethod |
| def convert_dttm(cls, target_type: str, dttm: datetime) -> Optional[str]: |
| if target_type.upper() == utils.TemporalType.DATETIME: |
| return f"""'{dttm.isoformat(timespec="seconds")}'""" |
| return None |
| |
| @staticmethod |
| def _mutate_label(label: str) -> str: |
| return label.replace(".", "_") |