superset create 源码
superset create 代码
文件路径：/superset/key_value/commands/create.py
# 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 logging
import pickle
from datetime import datetime
from typing import Any, Optional, Union
from uuid import UUID
from sqlalchemy.exc import SQLAlchemyError
from superset import db
from superset.commands.base import BaseCommand
from superset.key_value.exceptions import KeyValueCreateFailedError
from superset.key_value.models import KeyValueEntry
from superset.key_value.types import Key, KeyValueResource
from superset.utils.core import get_user_id
logger = logging.getLogger(__name__)
class CreateKeyValueCommand(BaseCommand):
resource: KeyValueResource
value: Any
key: Optional[Union[int, UUID]]
expires_on: Optional[datetime]
def __init__(
self,
resource: KeyValueResource,
value: Any,
key: Optional[Union[int, UUID]] = None,
expires_on: Optional[datetime] = None,
):
"""
Create a new key-value pair
:param resource: the resource (dashboard, chart etc)
:param value: the value to persist in the key-value store
:param key: id of entry (autogenerated if undefined)
:param expires_on: entry expiration time
:return: the key associated with the persisted value
"""
self.resource = resource
self.value = value
self.key = key
self.expires_on = expires_on
def run(self) -> Key:
try:
return self.create()
except SQLAlchemyError as ex:
db.session.rollback()
raise KeyValueCreateFailedError() from ex
def validate(self) -> None:
pass
def create(self) -> Key:
entry = KeyValueEntry(
resource=self.resource.value,
value=pickle.dumps(self.value),
created_on=datetime.now(),
created_by_fk=get_user_id(),
expires_on=self.expires_on,
)
if self.key is not None:
try:
if isinstance(self.key, UUID):
entry.uuid = self.key
else:
entry.id = self.key
except ValueError as ex:
raise KeyValueCreateFailedError() from ex
db.session.add(entry)
db.session.commit()
return Key(id=entry.id, uuid=entry.uuid)
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