'Permit admins to resume the server from suspend.'

@wsgi.response(202)
@extensions.expected_errors((404, 409))
@wsgi.action('resume')
def _resume(self, req, id, body):

    context = req.environ['nova.context']
    context.can((ss_policies.POLICY_ROOT % 'resume'))
    server = common.get_instance(self.compute_api, context, id)
    try:
        self.compute_api.resume(context, server)
    except exception.InstanceUnknownCell as e:
        raise exc.HTTPNotFound(explanation=e.format_message())
    except exception.InstanceIsLocked as e:
        raise exc.HTTPConflict(explanation=e.format_message())
    except exception.InstanceInvalidState as state_error:
        common.raise_http_conflict_for_instance_invalid_state(state_error, 'resume', id)
