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subscribers.cpython-312.pyc
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� �<�e# � �< � d dl mZ d dlmZ d dlmZ G d� d� Zy)� )� lru_cache)�accepts_kwargs)� InvalidSubscriberMethodErrorc �` � � e Zd ZdZg d�Z� fd�Ze e� d� � � Zd� Z d� Z d� Z � xZ S )�BaseSubscriberz�The base subscriber class It is recommended that all subscriber implementations subclass and then override the subscription methods (i.e. on_{subsribe_type}() methods). )�queued�progress�donec �B �� | j � t �| � | � S )N)� _validate_subscriber_methods�super�__new__)�cls�args�kwargs� __class__s ��8/usr/lib/python3/dist-packages/s3transfer/subscribers.pyr zBaseSubscriber.__new__ s �� � �(�(�*��w��s�#�#� c � � | j D ]C }t | d|z � }t |� st d|z � �t |� r�7t d|z � � y )N�on_z&Subscriber method %s must be callable.z=Subscriber method %s must accept keyword arguments (**kwargs))�VALID_SUBSCRIBER_TYPES�getattr�callabler r )r �subscriber_type�subscriber_methods r r z+BaseSubscriber._validate_subscriber_methods sq � � #� 9� 9� �O� '��U�_�-D� E� �� -�.�2�<�'�(�� � "�"3�4�2�+�->�?�� � r c � � y)a� Callback to be invoked when transfer request gets queued This callback can be useful for: * Keeping track of how many transfers have been requested * Providing the expected transfer size through future.meta.provide_transfer_size() so a HeadObject would not need to be made for copies and downloads. :type future: s3transfer.futures.TransferFuture :param future: The TransferFuture representing the requested transfer. N� ��self�futurer s r � on_queuedzBaseSubscriber.on_queued1 � � � r c � � y)aj Callback to be invoked when progress is made on transfer This callback can be useful for: * Recording and displaying progress :type future: s3transfer.futures.TransferFuture :param future: The TransferFuture representing the requested transfer. :type bytes_transferred: int :param bytes_transferred: The number of bytes transferred for that invocation of the callback. Note that a negative amount can be provided, which usually indicates that an in-progress request needed to be retried and thus progress was rewound. Nr )r r �bytes_transferredr s r � on_progresszBaseSubscriber.on_progress@ s � � r c � � y)a� Callback to be invoked once a transfer is done This callback can be useful for: * Recording and displaying whether the transfer succeeded or failed using future.result() * Running some task after the transfer completed like changing the last modified time of a downloaded file. :type future: s3transfer.futures.TransferFuture :param future: The TransferFuture representing the requested transfer. Nr r s r �on_donezBaseSubscriber.on_doneR r" r ) �__name__� __module__� __qualname__�__doc__r r � classmethodr r r! r% r' � __classcell__)r s @r r r sB �� �� <��$� ��[� � � � � � �$ r r N)� functoolsr �s3transfer.compatr �s3transfer.exceptionsr r r r r �<module>r1 s �� � ,� >�L � L r