airflow oracle 源码

airflow oracle 代码

文件路径：/airflow/providers/oracle/operators/oracle.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.
from __future__ import annotations

import warnings
from typing import TYPE_CHECKING, Sequence

from airflow.models import BaseOperator
from airflow.providers.common.sql.operators.sql import SQLExecuteQueryOperator
from airflow.providers.oracle.hooks.oracle import OracleHook

if TYPE_CHECKING:
    from airflow.utils.context import Context


class OracleOperator(SQLExecuteQueryOperator):
    """
    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)
    :param oracle_conn_id: The :ref:`Oracle connection id <howto/connection:oracle>`
        reference to a specific Oracle database.
    :param parameters: (optional, templated) the parameters to render the SQL query with.
    :param autocommit: if True, each command is automatically committed.
        (default value: False)
    """

    template_fields: Sequence[str] = (
        'parameters',
        'sql',
    )
    template_ext: Sequence[str] = ('.sql',)
    template_fields_renderers = {'sql': 'sql'}
    ui_color = '#ededed'

    def __init__(self, *, oracle_conn_id: str = 'oracle_default', **kwargs) -> None:
        super().__init__(conn_id=oracle_conn_id, **kwargs)
        warnings.warn(
            """This class is deprecated.
            Please use `airflow.providers.common.sql.operators.sql.SQLExecuteQueryOperator`.""",
            DeprecationWarning,
            stacklevel=2,
        )


class OracleStoredProcedureOperator(BaseOperator):
    """
    Executes stored procedure in a specific Oracle database.

    :param procedure: name of stored procedure to call (templated)
    :param oracle_conn_id: The :ref:`Oracle connection id <howto/connection:oracle>`
        reference to a specific Oracle database.
    :param parameters: (optional, templated) the parameters provided in the call
    """

    template_fields: Sequence[str] = (
        'parameters',
        'procedure',
    )
    ui_color = '#ededed'

    def __init__(
        self,
        *,
        procedure: str,
        oracle_conn_id: str = 'oracle_default',
        parameters: dict | list | None = None,
        **kwargs,
    ) -> None:
        super().__init__(**kwargs)
        self.oracle_conn_id = oracle_conn_id
        self.procedure = procedure
        self.parameters = parameters

    def execute(self, context: Context):
        self.log.info('Executing: %s', self.procedure)
        hook = OracleHook(oracle_conn_id=self.oracle_conn_id)
        return hook.callproc(self.procedure, autocommit=True, parameters=self.parameters)

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