potiuk commented on a change in pull request #8942: URL: https://github.com/apache/airflow/pull/8942#discussion_r432884462
########## File path: airflow/operators/sql_branch_operator.py ########## @@ -0,0 +1,174 @@ +# 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 distutils.util import strtobool +from typing import Dict, Iterable, List, Mapping, Optional, Union + +from airflow.exceptions import AirflowException +from airflow.hooks.base_hook import BaseHook +from airflow.models import BaseOperator, SkipMixin +from airflow.utils.decorators import apply_defaults + + +class BranchSqlOperator(BaseOperator, SkipMixin): + """ + Executes sql code in a specific database + + :param sql: the sql code to be executed. (templated) + :type sql: Can receive a str representing a sql statement or reference to a template file. + Template reference are recognized by str ending in '.sql'. + Expected SQL query to return Boolean (True/False), integer (0 = False, Otherwise = 1) + or string (true/y/yes/1/on/false/n/no/0/off). + :param follow_task_ids_if_true: task id or task ids to follow if query return true + :type follow_task_ids_if_true: str or list + :param follow_task_ids_if_false: task id or task ids to follow if query return true + :type follow_task_ids_if_false: str or list + :param conn_id: reference to a specific database + :type conn_id: str + :param database: name of database which overwrite defined one in connection + :param parameters: (optional) the parameters to render the SQL query with. + :type parameters: mapping or iterable + """ + + template_fields = ("sql",) + template_ext = (".sql",) + ui_color = "#a22034" + ui_fgcolor = "#F7F7F7" + + @apply_defaults + def __init__( + self, + sql: str, + follow_task_ids_if_true: List[str], + follow_task_ids_if_false: List[str], + conn_id: str = "default_conn_id", + database: Optional[str] = None, + parameters: Optional[Union[Mapping, Iterable]] = None, + *args, + **kwargs, + ) -> None: + super().__init__(*args, **kwargs) + self.conn_id = conn_id + self.sql = sql + self.parameters = parameters + self.follow_task_ids_if_true = follow_task_ids_if_true + self.follow_task_ids_if_false = follow_task_ids_if_false + self.database = database + self._hook = None + + def _get_hook(self): + self.log.debug("Get connection for %s", self.conn_id) + conn = BaseHook.get_connection(self.conn_id) + + allowed_conn_type = { + "google_cloud_platform", + "jdbc", + "mssql", + "mysql", + "odbc", + "oracle", + "postgres", + "presto", + "sqlite", + "vertica", + } + if conn.conn_type not in allowed_conn_type: + raise AirflowException( + "The connection type is not supported by BranchSqlOperator. " + + "Supported connection types: {}".format(list(allowed_conn_type)) + ) + + if not self._hook: + self._hook = conn.get_hook() + if self.database: + self._hook.schema = self.database + + return self._hook + + def execute(self, context: Dict): + # get supported hook + self._hook = self._get_hook() + Review comment: Just rebase it to latest master please. We had some problems with kubernetes tests - they should be largely solved now (I am working on final fix) but at least it should not fail now. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org
