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107 lines
3.7 KiB
107 lines
3.7 KiB
# |
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# Licensed to the Apache Software Foundation (ASF) under one |
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# or more contributor license agreements. See the NOTICE file |
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# distributed with this work for additional information |
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# regarding copyright ownership. The ASF licenses this file |
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# to you under the Apache License, Version 2.0 (the |
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# "License"); you may not use this file except in compliance |
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# with the License. You may obtain a copy of the License at |
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# |
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# http://www.apache.org/licenses/LICENSE-2.0 |
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# |
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# Unless required by applicable law or agreed to in writing, |
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# software distributed under the License is distributed on an |
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
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# KIND, either express or implied. See the License for the |
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# specific language governing permissions and limitations |
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# under the License. |
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from tempfile import NamedTemporaryFile |
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from airflow.models import BaseOperator |
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from airflow.providers.amazon.aws.hooks.s3 import S3Hook |
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from airflow.providers.ftp.hooks.ftp import FTPHook |
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from airflow.utils.decorators import apply_defaults |
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class FTPToS3Operator(BaseOperator): |
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""" |
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This operator enables the transferring of files from FTP server to S3. |
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:param s3_bucket: The targeted s3 bucket in which upload the file to |
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:type s3_bucket: str |
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:param s3_key: The targeted s3 key. This is the specified file path for |
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uploading the file to S3. |
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:type s3_key: str |
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:param ftp_path: The ftp remote path, including the file. |
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:type ftp_path: str |
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:param ftp_conn_id: The ftp connection id. The name or identifier for |
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establishing a connection to the FTP server. |
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:type ftp_conn_id: str |
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:param aws_conn_id: The s3 connection id. The name or identifier for |
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establishing a connection to S3 |
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:type aws_conn_id: str |
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:param replace: A flag to decide whether or not to overwrite the key |
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if it already exists. If replace is False and the key exists, an |
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error will be raised. |
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:type replace: bool |
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:param encrypt: If True, the file will be encrypted on the server-side |
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by S3 and will be stored in an encrypted form while at rest in S3. |
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:type encrypt: bool |
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:param gzip: If True, the file will be compressed locally |
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:type gzip: bool |
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:param acl_policy: String specifying the canned ACL policy for the file being |
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uploaded to the S3 bucket. |
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:type acl_policy: str |
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""" |
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template_fields = ( |
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"s3_bucket", |
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"s3_key", |
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"ftp_path", |
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) |
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@apply_defaults |
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def __init__( |
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self, |
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s3_bucket, |
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s3_key, |
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ftp_path, |
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ftp_conn_id="ftp_default", |
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aws_conn_id="aws_default", |
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replace=False, |
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encrypt=False, |
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gzip=False, |
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acl_policy=None, |
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*args, |
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**kwargs, |
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): |
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super().__init__(*args, **kwargs) |
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self.s3_bucket = s3_bucket |
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self.s3_key = s3_key |
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self.ftp_path = ftp_path |
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self.aws_conn_id = aws_conn_id |
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self.ftp_conn_id = ftp_conn_id |
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self.replace = replace |
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self.encrypt = encrypt |
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self.gzip = gzip |
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self.acl_policy = acl_policy |
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def execute(self, context): |
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s3_hook = S3Hook(self.aws_conn_id) |
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ftp_hook = FTPHook(ftp_conn_id=self.ftp_conn_id) |
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with NamedTemporaryFile() as local_tmp_file: |
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ftp_hook.retrieve_file( |
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remote_full_path=self.ftp_path, |
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local_full_path_or_buffer=local_tmp_file.name, |
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) |
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s3_hook.load_file( |
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filename=local_tmp_file.name, |
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key=self.s3_key, |
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bucket_name=self.s3_bucket, |
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replace=self.replace, |
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encrypt=self.encrypt, |
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gzip=self.gzip, |
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acl_policy=self.acl_policy, |
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)
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