[jira] [Comment Edited] (JCLOUDS-651) server-side copy in portable abstraction

["Andrew Gaul (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/JCLOUDS-651?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14126123#comment-14126123 ] 

Andrew Gaul edited comment on JCLOUDS-651 at 9/8/14 9:23 PM:
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Presently the portable implementation lacks support for {{CopyOptions}}.  Reading through the Azure, S3, and Swift implementations, Azure and S3 support similar options, allowing conditional copies based on modified date and ETag, and either copying or replacement of metadata.  Swift does not appear to support any of these operations, although it does support *additional* metadata headers to overwrite the copied headers.  Given that none of these options intersect between all providers, I propose that we only expose the minimum functionality, copying objects while preserving metadata, in the initial implementation.  We will provide an empty {{CopyOptions}} for future expansion, and possibly throwing {{UnsupportedOperationException}} when a providers does not support a given option.


was (Author: gaul):
Presently the portable implementation lacks support for {CopyOptions}.  Reading through the Azure, S3, and Swift implementations, Azure and S3 support similar options, allowing conditional copies based on modified date and ETag, and either copying or replacement of metadata.  Swift does not appear to support any of these operations, although it does support *additional* metadata headers to overwrite the copied headers.  Given that none of these options intersect between all providers, I propose that we only expose the minimum functionality, copying objects while preserving metadata, in the initial implementation.  We will provide an empty {CopyOptions} for future expansion, and possibly throwing {UnsupportedOperationException} when a providers does not support a given option.

> server-side copy in portable abstraction
> ----------------------------------------
>
>                 Key: JCLOUDS-651
>                 URL: https://issues.apache.org/jira/browse/JCLOUDS-651
>             Project: jclouds
>          Issue Type: New Feature
>          Components: jclouds-blobstore
>    Affects Versions: 1.8.0
>            Reporter: Andrew Gaul
>            Assignee: Andrew Gaul
>
> jclouds should expose the provider server-side copy functionality in the portable abstraction.  When a provider does not support this, jclouds should fall back to client-side copying.  Amazon S3 and likely others provide this feature:
> http://docs.aws.amazon.com/AmazonS3/latest/API/RESTObjectCOPY.html



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