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[Bug 1596598] [NEW] warlock 1.3 breaks glanceclient metadef models

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Public bug reported:

Warlock 1.3 was released June 25 2016 and appears to break metadef
handling via the v2 API in glanceclient. Partial stacktrace below; you
can reproduce it with:

 # gc is a glance client instance
 metadefs = list(gc.metadefs_namespace.list())
 ns = metadefs[0]['namespace']
 gc.metadefs_namespace.get(ns)


Warlock <1.3.0 doesn't exhibit the issue.


2016-06-27 11:03:56.943 56346 ERROR searchlight   File ".venv/lib/python2.7/site-packages/glanceclient/v2/metadefs.py", line 89, in get
2016-06-27 11:03:56.943 56346 ERROR searchlight     return self.model(**body)
2016-06-27 11:03:56.943 56346 ERROR searchlight   File ".venv/lib/python2.7/site-packages/warlock/core.py", line 35, in __init__
2016-06-27 11:03:56.943 56346 ERROR searchlight     base_class.__init__(self, *args, **kwargs)
2016-06-27 11:03:56.943 56346 ERROR searchlight   File ".venv/lib/python2.7/site-packages/warlock/model.py", line 34, in __init__
2016-06-27 11:03:56.943 56346 ERROR searchlight     self.validate(d)
2016-06-27 11:03:56.943 56346 ERROR searchlight   File ".venv/lib/python2.7/site-packages/warlock/model.py", line 141, in validate
2016-06-27 11:03:56.943 56346 ERROR searchlight     jsonschema.validate(obj, self.schema, resolver=self.resolver)
2016-06-27 11:03:56.943 56346 ERROR searchlight   File ".venv/lib/python2.7/site-packages/jsonschema/validators.py", line 478, in validate
2016-06-27 11:03:56.943 56346 ERROR searchlight     cls(schema, *args, **kwargs).validate(instance)
2016-06-27 11:03:56.943 56346 ERROR searchlight   File ".venv/lib/python2.7/site-packages/jsonschema/validators.py", line 122, in validate
2016-06-27 11:03:56.943 56346 ERROR searchlight     for error in self.iter_errors(*args, **kwargs):
2016-06-27 11:03:56.943 56346 ERROR searchlight   File ".venv/lib/python2.7/site-packages/jsonschema/validators.py", line 98, in iter_errors
2016-06-27 11:03:56.943 56346 ERROR searchlight     for error in errors:
2016-06-27 11:03:56.943 56346 ERROR searchlight   File ".venv/lib/python2.7/site-packages/jsonschema/_validators.py", line 291, in properties_draft4
2016-06-27 11:03:56.943 56346 ERROR searchlight     schema_path=property,
2016-06-27 11:03:56.943 56346 ERROR searchlight   File ".venv/lib/python2.7/site-packages/jsonschema/validators.py", line 114, in descend
2016-06-27 11:03:56.943 56346 ERROR searchlight     for error in self.iter_errors(instance, schema):
2016-06-27 11:03:56.943 56346 ERROR searchlight   File ".venv/lib/python2.7/site-packages/jsonschema/validators.py", line 98, in iter_errors
2016-06-27 11:03:56.943 56346 ERROR searchlight     for error in errors:
2016-06-27 11:03:56.943 56346 ERROR searchlight   File ".venv/lib/python2.7/site-packages/jsonschema/_validators.py", line 195, in ref
2016-06-27 11:03:56.943 56346 ERROR searchlight     with validator.resolver.resolving(ref) as resolved:
2016-06-27 11:03:56.943 56346 ERROR searchlight AttributeError: type object 'SchemaBasedModel' has no attribute 'resolving'

** Affects: glance
     Importance: Undecided
         Status: New

** Affects: searchlight
     Importance: High
         Status: New

** Also affects: searchlight
   Importance: Undecided
       Status: New

** Changed in: searchlight
   Importance: Undecided => High

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https://bugs.launchpad.net/bugs/1596598

Title:
  warlock 1.3 breaks glanceclient metadef models

Status in Glance:
  New
Status in OpenStack Search (Searchlight):
  New

Bug description:
  Warlock 1.3 was released June 25 2016 and appears to break metadef
  handling via the v2 API in glanceclient. Partial stacktrace below; you
  can reproduce it with:

   # gc is a glance client instance
   metadefs = list(gc.metadefs_namespace.list())
   ns = metadefs[0]['namespace']
   gc.metadefs_namespace.get(ns)

  
  Warlock <1.3.0 doesn't exhibit the issue.

  
  2016-06-27 11:03:56.943 56346 ERROR searchlight   File ".venv/lib/python2.7/site-packages/glanceclient/v2/metadefs.py", line 89, in get
  2016-06-27 11:03:56.943 56346 ERROR searchlight     return self.model(**body)
  2016-06-27 11:03:56.943 56346 ERROR searchlight   File ".venv/lib/python2.7/site-packages/warlock/core.py", line 35, in __init__
  2016-06-27 11:03:56.943 56346 ERROR searchlight     base_class.__init__(self, *args, **kwargs)
  2016-06-27 11:03:56.943 56346 ERROR searchlight   File ".venv/lib/python2.7/site-packages/warlock/model.py", line 34, in __init__
  2016-06-27 11:03:56.943 56346 ERROR searchlight     self.validate(d)
  2016-06-27 11:03:56.943 56346 ERROR searchlight   File ".venv/lib/python2.7/site-packages/warlock/model.py", line 141, in validate
  2016-06-27 11:03:56.943 56346 ERROR searchlight     jsonschema.validate(obj, self.schema, resolver=self.resolver)
  2016-06-27 11:03:56.943 56346 ERROR searchlight   File ".venv/lib/python2.7/site-packages/jsonschema/validators.py", line 478, in validate
  2016-06-27 11:03:56.943 56346 ERROR searchlight     cls(schema, *args, **kwargs).validate(instance)
  2016-06-27 11:03:56.943 56346 ERROR searchlight   File ".venv/lib/python2.7/site-packages/jsonschema/validators.py", line 122, in validate
  2016-06-27 11:03:56.943 56346 ERROR searchlight     for error in self.iter_errors(*args, **kwargs):
  2016-06-27 11:03:56.943 56346 ERROR searchlight   File ".venv/lib/python2.7/site-packages/jsonschema/validators.py", line 98, in iter_errors
  2016-06-27 11:03:56.943 56346 ERROR searchlight     for error in errors:
  2016-06-27 11:03:56.943 56346 ERROR searchlight   File ".venv/lib/python2.7/site-packages/jsonschema/_validators.py", line 291, in properties_draft4
  2016-06-27 11:03:56.943 56346 ERROR searchlight     schema_path=property,
  2016-06-27 11:03:56.943 56346 ERROR searchlight   File ".venv/lib/python2.7/site-packages/jsonschema/validators.py", line 114, in descend
  2016-06-27 11:03:56.943 56346 ERROR searchlight     for error in self.iter_errors(instance, schema):
  2016-06-27 11:03:56.943 56346 ERROR searchlight   File ".venv/lib/python2.7/site-packages/jsonschema/validators.py", line 98, in iter_errors
  2016-06-27 11:03:56.943 56346 ERROR searchlight     for error in errors:
  2016-06-27 11:03:56.943 56346 ERROR searchlight   File ".venv/lib/python2.7/site-packages/jsonschema/_validators.py", line 195, in ref
  2016-06-27 11:03:56.943 56346 ERROR searchlight     with validator.resolver.resolving(ref) as resolved:
  2016-06-27 11:03:56.943 56346 ERROR searchlight AttributeError: type object 'SchemaBasedModel' has no attribute 'resolving'

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