Steve Martinelli 05f5e043d8 Additional exception handling for find_resource
A few things here: 1) we need to check if the client class even
has a 'resource_class', in the case of glanceclient, it does not.

2) If everything fails we should print a better error message,
rather than a "find" failed, since some clients don't support find.

Change-Id: I6277322639e75b1635f9f3d159753efadbce1031
2015-09-30 09:54:28 -05:00
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