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Posted to commits@airflow.apache.org by GitBox <gi...@apache.org> on 2020/02/01 10:37:37 UTC

[GitHub] [airflow] feluelle commented on a change in pull request #6670: [AIRFLOW-4816]MySqlToS3Operator

feluelle commented on a change in pull request #6670: [AIRFLOW-4816]MySqlToS3Operator
URL: https://github.com/apache/airflow/pull/6670#discussion_r373771209
 
 

 ##########
 File path: airflow/operators/mysql_to_s3_operator.py
 ##########
 @@ -0,0 +1,122 @@
+# -*- coding: utf-8 -*-
+#
+# 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.
+"""
+Transfer data from MySQL into a S3 bucket
+"""
+import os
+import pickle
+import tempfile
+from typing import Optional, Union
+
+import numpy as np
+import pandas as pd
+
+from airflow.models import BaseOperator
+from airflow.providers.amazon.aws.hooks.s3 import S3Hook
+from airflow.providers.mysql.hooks.mysql import MySqlHook
+from airflow.utils.decorators import apply_defaults
+
+
+class MySQLToS3Operator(BaseOperator):
+    """
+    Saves data from an specific MySQL query into a file in S3.
+
+    :param query: the sql query to be executed.
+    :type query: str
+    :param s3_bucket: bucket where the data will be stored
+    :type s3_bucket: str
+    :param s3_key: desired key for the file. It includes the name of the file
+    :type s3_key: str
+    :param mysql_conn_id: reference to a specific mysql database
+    :type mysql_conn_id: str
+     :param aws_conn_id: reference to a specific S3 connection
 
 Review comment:
   ```suggestion
       :param aws_conn_id: reference to a specific S3 connection
   ```

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