mirror of
https://github.com/apache/superset.git
synced 2026-04-09 03:16:07 +00:00
2055ecc1ba
* feat: refactor error components and add database issue code * Apply suggestions from code review Co-authored-by: John Bodley <4567245+john-bodley@users.noreply.github.com> Co-authored-by: John Bodley <4567245+john-bodley@users.noreply.github.com>
95 lines
3.5 KiB
Python
95 lines
3.5 KiB
Python
# 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.
|
|
import json
|
|
import logging
|
|
from datetime import datetime
|
|
from typing import Any, Dict, Optional, TYPE_CHECKING
|
|
|
|
from superset.db_engine_specs.base import BaseEngineSpec
|
|
from superset.utils import core as utils
|
|
|
|
if TYPE_CHECKING:
|
|
from superset.connectors.sqla.models import ( # pylint: disable=unused-import
|
|
TableColumn,
|
|
)
|
|
from superset.models.core import Database # pylint: disable=unused-import
|
|
|
|
logger = logging.getLogger()
|
|
|
|
|
|
class DruidEngineSpec(BaseEngineSpec): # pylint: disable=abstract-method
|
|
"""Engine spec for Druid.io"""
|
|
|
|
engine = "druid"
|
|
engine_name = "Apache Druid"
|
|
allows_joins = False
|
|
allows_subqueries = True
|
|
|
|
_time_grain_expressions = {
|
|
None: "{col}",
|
|
"PT1S": "FLOOR({col} TO SECOND)",
|
|
"PT1M": "FLOOR({col} TO MINUTE)",
|
|
"PT5M": "TIME_FLOOR({col}, 'PT5M')",
|
|
"PT10M": "TIME_FLOOR({col}, 'PT10M')",
|
|
"PT15M": "TIME_FLOOR({col}, 'PT15M')",
|
|
"PT0.5H": "TIME_FLOOR({col}, 'PT30M')",
|
|
"PT1H": "FLOOR({col} TO HOUR)",
|
|
"P1D": "FLOOR({col} TO DAY)",
|
|
"P1W": "FLOOR({col} TO WEEK)",
|
|
"P1M": "FLOOR({col} TO MONTH)",
|
|
"P0.25Y": "FLOOR({col} TO QUARTER)",
|
|
"P1Y": "FLOOR({col} TO YEAR)",
|
|
}
|
|
|
|
@classmethod
|
|
def alter_new_orm_column(cls, orm_col: "TableColumn") -> None:
|
|
if orm_col.column_name == "__time":
|
|
orm_col.is_dttm = True
|
|
|
|
@staticmethod
|
|
def get_extra_params(database: "Database") -> Dict[str, Any]:
|
|
"""
|
|
For Druid, the path to a SSL certificate is placed in `connect_args`.
|
|
|
|
:param database: database instance from which to extract extras
|
|
:raises CertificateException: If certificate is not valid/unparseable
|
|
"""
|
|
try:
|
|
extra = json.loads(database.extra or "{}")
|
|
except json.JSONDecodeError as ex:
|
|
logger.error(ex)
|
|
raise ex
|
|
|
|
if database.server_cert:
|
|
engine_params = extra.get("engine_params", {})
|
|
connect_args = engine_params.get("connect_args", {})
|
|
connect_args["scheme"] = "https"
|
|
path = utils.create_ssl_cert_file(database.server_cert)
|
|
connect_args["ssl_verify_cert"] = path
|
|
engine_params["connect_args"] = connect_args
|
|
extra["engine_params"] = engine_params
|
|
return extra
|
|
|
|
@classmethod
|
|
def convert_dttm(cls, target_type: str, dttm: datetime) -> Optional[str]:
|
|
tt = target_type.upper()
|
|
if tt == utils.TemporalType.DATE:
|
|
return f"CAST(TIME_PARSE('{dttm.date().isoformat()}') AS DATE)"
|
|
if tt in (utils.TemporalType.DATETIME, utils.TemporalType.TIMESTAMP):
|
|
return f"""TIME_PARSE('{dttm.isoformat(timespec="seconds")}')"""
|
|
return None
|