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Posted to notifications@libcloud.apache.org by "Quentin Pradet (JIRA)" <ji...@apache.org> on 2018/03/16 04:48:00 UTC
[jira] [Commented] (LIBCLOUD-986) List / Iterate container with
prefix for Azure Blob service (This support exists in the other drivers
already)
[ https://issues.apache.org/jira/browse/LIBCLOUD-986?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16401454#comment-16401454 ]
Quentin Pradet commented on LIBCLOUD-986:
-----------------------------------------
Hello! We unfortunately have a number of inconsistencies, and would be happy to fix this one. Would you like to work on it? I'd be happy to show you what needs to be done.
> List / Iterate container with prefix for Azure Blob service (This support exists in the other drivers already)
> --------------------------------------------------------------------------------------------------------------
>
> Key: LIBCLOUD-986
> URL: https://issues.apache.org/jira/browse/LIBCLOUD-986
> Project: Libcloud
> Issue Type: Improvement
> Components: Storage
> Reporter: Joshua Hawkinson
> Priority: Major
>
> While testing out the libcloud storage abstraction I've come across a curious omission in driver support. It seems that for many drivers there is additional support for the {{list_container_objects()}} and {{iterate_container_objects()}} to support a prefix (or {{ex_prefix)}}.
> This functionality is not present in the Azure driver for some reason. I've gone and checked the list_blobs API and it also supports this functionality as seen here:
> [https://docs.microsoft.com/en-us/rest/api/storageservices/list-blobs]
>
> I've attempted a quick and dirty patch that seems to work as well.
> {code}
> azure_blobs.py Line 384
> - def iterate_container_objects(self, container):
> + def iterate_container_objects(self, container, ex_prefix=None):
> """
> @inherits: :class:`StorageDriver.iterate_container_objects`
> """
> params = {'restype': 'container',
> 'comp': 'list',
> + 'prefix': ex_prefix,
> 'maxresults': RESPONSES_PER_REQUEST,
> 'include': 'metadata'}
> Line 419 (Add new function)
> def list_container_objects(self, container, ex_prefix=None):
> """
> Return a list of objects for the given container.
>
> :param container: Container instance.
> :type container: :class:`Container`
>
> :param ex_prefix: Only return objects starting with ex_prefix
> :type ex_prefix: ``str``
>
> :return: A list of Object instances.
> :rtype: ``list`` of :class:`Object`
> """
> return list(self.iterate_container_objects(container,
> ex_prefix=ex_prefix))
>
> {code}
>
> I've just worked around this at a higher level for now. There isn't any urgency on my end, but it would be nice if the abstraction was more consistent so I could remove the workaround code.
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