Source code for airflow.providers.amazon.aws.transfers.s3_to_ftp
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from tempfile import NamedTemporaryFile
from airflow.models import BaseOperator
from airflow.providers.amazon.aws.hooks.s3 import S3Hook
from airflow.providers.ftp.hooks.ftp import FTPHook
[docs]class S3ToFTPOperator(BaseOperator):
"""
This operator enables the transferring of files from S3 to a FTP server.
:param s3_bucket: The targeted s3 bucket. This is the S3 bucket from
where the file is downloaded.
:type s3_bucket: str
:param s3_key: The targeted s3 key. This is the specified file path for
downloading the file from S3.
:type s3_key: str
:param ftp_path: The ftp remote path. This is the specified file path for
uploading file to the FTP server.
:type ftp_path: str
:param aws_conn_id: reference to a specific AWS connection
:type aws_conn_id: str
:param ftp_conn_id: The ftp connection id. The name or identifier for
establishing a connection to the FTP server.
:type ftp_conn_id: str
"""
[docs] template_fields = ('s3_bucket', 's3_key', 'ftp_path')
def __init__(
self,
*,
s3_bucket,
s3_key,
ftp_path,
aws_conn_id='aws_default',
ftp_conn_id='ftp_default',
**kwargs,
) -> None:
super().__init__(**kwargs)
self.s3_bucket = s3_bucket
self.s3_key = s3_key
self.ftp_path = ftp_path
self.aws_conn_id = aws_conn_id
self.ftp_conn_id = ftp_conn_id
[docs] def execute(self, context):
s3_hook = S3Hook(self.aws_conn_id)
ftp_hook = FTPHook(ftp_conn_id=self.ftp_conn_id)
s3_obj = s3_hook.get_key(self.s3_key, self.s3_bucket)
with NamedTemporaryFile() as local_tmp_file:
self.log.info('Downloading file from %s', self.s3_key)
s3_obj.download_fileobj(local_tmp_file)
local_tmp_file.seek(0)
ftp_hook.store_file(self.ftp_path, local_tmp_file.name)
self.log.info('File stored in %s', {self.ftp_path})