Apache Airflow dags w/ backend configuration bundle.
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#
# 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
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# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
from typing import Iterable, Mapping, Optional, Union
from airflow.models import BaseOperator
from airflow.providers.oracle.hooks.oracle import OracleHook
from airflow.utils.decorators import apply_defaults
class OracleOperator(BaseOperator):
"""
Executes sql code in a specific Oracle database
:param sql: the sql code to be executed. Can receive a str representing a sql statement,
a list of str (sql statements), or reference to a template file.
Template reference are recognized by str ending in '.sql'
(templated)
:type sql: str or list[str]
:param oracle_conn_id: reference to a specific Oracle database
:type oracle_conn_id: str
:param parameters: (optional) the parameters to render the SQL query with.
:type parameters: dict or iterable
:param autocommit: if True, each command is automatically committed.
(default value: False)
:type autocommit: bool
"""
template_fields = ("sql",)
template_ext = (".sql",)
ui_color = "#ededed"
@apply_defaults
def __init__(
self,
*,
sql: str,
oracle_conn_id: str = "oracle_default",
parameters: Optional[Union[Mapping, Iterable]] = None,
autocommit: bool = False,
**kwargs,
) -> None:
super().__init__(**kwargs)
self.oracle_conn_id = oracle_conn_id
self.sql = sql
self.autocommit = autocommit
self.parameters = parameters
def execute(self, context) -> None:
self.log.info("Executing: %s", self.sql)
hook = OracleHook(oracle_conn_id=self.oracle_conn_id)
hook.run(self.sql, autocommit=self.autocommit, parameters=self.parameters)