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From "Maarten Coene (JIRA)" <j...@apache.org>
Subject [jira] Commented: (IVY-492) support atomic publish operation
Date Thu, 10 May 2007 21:18:15 GMT

    [ https://issues.apache.org/jira/browse/IVY-492?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12494839
] 

Maarten Coene commented on IVY-492:
-----------------------------------

For atomic publish support to filesystems, maybe we can use Jakarta commons-transactions?


> support atomic publish operation
> --------------------------------
>
>                 Key: IVY-492
>                 URL: https://issues.apache.org/jira/browse/IVY-492
>             Project: Ivy
>          Issue Type: New Feature
>          Components: Core
>            Reporter: Geoff Reedy
>
> Some resolver types (e.g. one that uses subversion) could benefit from publishing a module
as a single atomic transaction.  Currently, each artifact (and it's checksums) are published
as separate operations, if one of the artifact uploads fail (perhaps an artifact is missing
or another user is trying to publish the same version at the same time) the ivy repository
can be in an inconsistent state with a half published module.  In addition, if uploads are
logged many entries in the log are generated for a single logical operation.
> A possible implementation strategy is to add three new methods to the resolver interface:
> beginPublish(ModuleRevisionId)
> abortPublish()
> commitPublish()
> beginPublish would be called before publishing the artifacts of the module, abortPublish
would be called if there is an error while publishing the module, commitPublish would be called
if all artifacts were successfully published.  Existing resolvers could simple implement these
methods as no-ops to retain the present behavior.

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