def find(self, base_url=None, **kwargs):
"""Find a single item with attributes matching ``**kwargs``.
:param base_url: if provided, the generated URL will be appended to it
"""
kwargs = self._filter_kwargs(kwargs)
rl = self._list(
'%(base_url)s%(query)s' % {
'base_url': self.build_url(base_url=base_url, **kwargs),
'query': '?%s' % parse.urlencode(kwargs) if kwargs else '',
},
self.collection_key)
num = len(rl)
if num == 0:
msg = _("No %(name)s matching %(args)s.") % {
'name': self.resource_class.__name__,
'args': kwargs
}
raise exceptions.NotFound(msg)
elif num > 1:
raise exceptions.NoUniqueMatch
else:
return rl[0]
def test_get_overclouds(self):
mock_heat = mock.Mock()
mock_stacks = mock.Mock()
mock_heat.stacks = mock_stacks
mock_stacks.list.return_value = [
mock.Mock(id='111', stack_name='overcloud'),
mock.Mock(id='222', stack_name='some-other-stack'),
mock.Mock(id='333', stack_name='other-overcloud'),
]
output_result = {
"output": {
"output_key": "AnsibleHostVarsMap",
"output_value": {}
}
}
mock_stacks.output_show.side_effect = [
output_result, heat_exc.NotFound(), output_result
]
result = list(tlo.get_overclouds(mock_heat))
self.assertEqual([{
'id': '111',
'stack_name': 'overcloud'
}, {
'id': '333',
'stack_name': 'other-overcloud'
}], result)
def get_ng_stack(stack_id, resolve_outputs=False):
try:
return self.mock_stacks[stack_id]
except KeyError:
# In this case we intentionally didn't add the stack
# to the mock_stacks dict to simulte a not found error.
# For this reason raise heat NotFound exception.
raise heatexc.NotFound("stack not found")
def find(self, **kwargs):
"""Find a single item with attributes matching ``**kwargs``.
This isn't very efficient: it loads the entire list then filters on
the Python side.
"""
matches = self.findall(**kwargs)
num_matches = len(matches)
if num_matches == 0:
msg = _("No %(name)s matching %(args)s.") % {
'name': self.resource_class.__name__,
'args': kwargs
}
raise exceptions.NotFound(msg)
elif num_matches > 1:
raise exceptions.NoUniqueMatch()
else:
return matches[0]