Source code for heat.engine.clients.os.mistral

#
#    Licensed under the Apache License, Version 2.0 (the "License"); you may
#    not use this file except in compliance with the License. You may obtain
#    a copy of the License at
#
#         http://www.apache.org/licenses/LICENSE-2.0
#
#    Unless required by applicable law or agreed to in writing, software
#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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from keystoneauth1.exceptions import http as ka_exceptions
from mistralclient.api import base as mistral_base
from mistralclient.api import client as mistral_client

from heat.common import exception
from heat.engine.clients import client_plugin
from heat.engine import constraints

CLIENT_NAME = 'mistral'


[docs]class MistralClientPlugin(client_plugin.ClientPlugin): service_types = [WORKFLOW_V2] = ['workflowv2'] def _create(self): endpoint_type = self._get_client_option(CLIENT_NAME, 'endpoint_type') endpoint = self.url_for(service_type=self.WORKFLOW_V2, endpoint_type=endpoint_type) args = { 'mistral_url': endpoint, 'session': self.context.keystone_session, 'region_name': self._get_region_name() } client = mistral_client.client(**args) return client
[docs] def is_not_found(self, ex): # check for keystoneauth exceptions till requirements change # to python-mistralclient > 3.1.2 ka_not_found = isinstance(ex, ka_exceptions.NotFound) mistral_not_found = (isinstance(ex, mistral_base.APIException) and ex.error_code == 404) return ka_not_found or mistral_not_found
[docs] def is_over_limit(self, ex): # check for keystoneauth exceptions till requirements change # to python-mistralclient > 3.1.2 ka_overlimit = isinstance(ex, ka_exceptions.RequestEntityTooLarge) mistral_overlimit = (isinstance(ex, mistral_base.APIException) and ex.error_code == 413) return ka_overlimit or mistral_overlimit
[docs] def is_conflict(self, ex): # check for keystoneauth exceptions till requirements change # to python-mistralclient > 3.1.2 ka_conflict = isinstance(ex, ka_exceptions.Conflict) mistral_conflict = (isinstance(ex, mistral_base.APIException) and ex.error_code == 409) return ka_conflict or mistral_conflict
[docs] def get_workflow_by_identifier(self, workflow_identifier): try: return self.client().workflows.get( workflow_identifier) except Exception as ex: if self.is_not_found(ex): raise exception.EntityNotFound( entity="Workflow", name=workflow_identifier) raise
[docs]class WorkflowConstraint(constraints.BaseCustomConstraint): resource_client_name = CLIENT_NAME resource_getter_name = 'get_workflow_by_identifier' expected_exceptions = (exception.EntityNotFound,)