U O8Úcñ ã@s*ddlmZddlmZGdd„dƒZdS)é)Úaccepts_kwargs)ÚInvalidSubscriberMethodErrorcsNeZdZdZdddgZ‡fdd„Zedd„ƒZd d „Zd d „Z d d„Z ‡Z S)ÚBaseSubscriberz¶The base subscriber class It is recommended that all subscriber implementations subclass and then override the subscription methods (i.e. on_{subsribe_type}() methods). ZqueuedÚprogressÚdonecs| ¡tƒ |¡S)N)Ú_validate_subscriber_methodsÚsuperÚ__new__)ÚclsÚargsÚkwargs©Ú __class__©ú:/tmp/pip-unpacked-wheel-6hpttf6a/s3transfer/subscribers.pyr szBaseSubscriber.__new__cCsF|jD]:}t|d|ƒ}t|ƒs,td|ƒ‚t|ƒstd|ƒ‚qdS)NZon_z&Subscriber method %s must be callable.z=Subscriber method %s must accept keyword arguments (**kwargs))ÚVALID_SUBSCRIBER_TYPESÚgetattrÚcallablerr)r Zsubscriber_typeZsubscriber_methodrrrrs ÿÿÿÿz+BaseSubscriber._validate_subscriber_methodscKsdS)aùCallback 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. Nr©ÚselfÚfuturer rrrÚ on_queued.s zBaseSubscriber.on_queuedcKsdS)ajCallback 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)rrZbytes_transferredr rrrÚ on_progress=szBaseSubscriber.on_progresscKsdS)aäCallback 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. NrrrrrÚon_doneOs zBaseSubscriber.on_done) Ú__name__Ú __module__Ú __qualname__Ú__doc__rr Ú classmethodrrrrÚ __classcell__rrr rrs   rN)Zs3transfer.compatrZs3transfer.exceptionsrrrrrrÚ s