NetApp driver proxy doesn't work with abstract base classes

[Clinton Knight]

NetApp's proxy driver implementation required a hack ("ProxyVD") in the Abstract Base Classes project in Cinder because the proxy class does not extend VolumeDriver. A proper factory implementation can remove the need for the hack, and it also can improve logging, because the actual driver object would be provided to the volume manager instead of the driver proxy.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/143661

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/143661
Committed: https://git.openstack.org/cgit/openstack/cinder/commit/?id=f10703d8b0dab00357c92840d958832f779e8450
Submitter: Jenkins
Branch: master

commit f10703d8b0dab00357c92840d958832f779e8450
Author: Clinton Knight <email address hidden>
Date: Fri Dec 12 15:30:26 2014 -0500

    Replace the NetApp driver proxy layer with a proper factory.

    The proxy implementation required a hack in the Abstract Base
    Classes project in Cinder core. This factory implementation
    removes the need for the hack. It also improves logging, as
    the actual driver object is provided to the volume manager
    instead of the driver proxy.

    Change-Id: I28f4798b9e799547d1696d2f135d3302b3c553fe
    Closes-Bug: 1405060