Source code for airflow.contrib.operators.s3_to_sftp_operator

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from airflow.models import BaseOperator
from airflow.hooks.S3_hook import S3Hook
from airflow.contrib.hooks.ssh_hook import SSHHook
from tempfile import NamedTemporaryFile
from urllib.parse import urlparse
from airflow.utils.decorators import apply_defaults

[docs]class S3ToSFTPOperator(BaseOperator): """ This operator enables the transferring of files from S3 to a SFTP server. :param sftp_conn_id: The sftp connection id. The name or identifier for establishing a connection to the SFTP server. :type sftp_conn_id: str :param sftp_path: The sftp remote path. This is the specified file path for uploading file to the SFTP server. :type sftp_path: str :param s3_conn_id: The s3 connection id. The name or identifier for establishing a connection to S3 :type s3_conn_id: str :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 """
[docs] template_fields = ('s3_key', 'sftp_path')
@apply_defaults def __init__(self, s3_bucket, s3_key, sftp_path, sftp_conn_id='ssh_default', s3_conn_id='aws_default', *args, **kwargs): super(S3ToSFTPOperator, self).__init__(*args, **kwargs) self.sftp_conn_id = sftp_conn_id self.sftp_path = sftp_path self.s3_bucket = s3_bucket self.s3_key = s3_key self.s3_conn_id = s3_conn_id @staticmethod
[docs] def get_s3_key(s3_key): """This parses the correct format for S3 keys regardless of how the S3 url is passed.""" parsed_s3_key = urlparse(s3_key) return parsed_s3_key.path.lstrip('/')
[docs] def execute(self, context): self.s3_key = self.get_s3_key(self.s3_key) ssh_hook = SSHHook(ssh_conn_id=self.sftp_conn_id) s3_hook = S3Hook(self.s3_conn_id) s3_client = s3_hook.get_conn() sftp_client = ssh_hook.get_conn().open_sftp() with NamedTemporaryFile("w") as f: s3_client.download_file(self.s3_bucket, self.s3_key, sftp_client.put(, self.sftp_path)

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