82 lines
3.1 KiB
Python
82 lines
3.1 KiB
Python
#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from keystoneauth1.exceptions import http as ka_exceptions
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from mistralclient.api import base as mistral_base
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from mistralclient.api import client as mistral_client
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from heat.common import exception
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from heat.engine.clients import client_plugin
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from heat.engine import constraints
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CLIENT_NAME = 'mistral'
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class MistralClientPlugin(client_plugin.ClientPlugin):
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service_types = [WORKFLOW_V2] = ['workflowv2']
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def _create(self):
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endpoint_type = self._get_client_option(CLIENT_NAME, 'endpoint_type')
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endpoint = self.url_for(service_type=self.WORKFLOW_V2,
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endpoint_type=endpoint_type)
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args = {
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'mistral_url': endpoint,
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'session': self.context.keystone_session,
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'region_name': self._get_region_name()
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}
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client = mistral_client.client(**args)
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return client
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def is_not_found(self, ex):
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# check for keystoneauth exceptions till requirements change
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# to python-mistralclient > 3.1.2
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ka_not_found = isinstance(ex, ka_exceptions.NotFound)
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mistral_not_found = (isinstance(ex, mistral_base.APIException) and
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ex.error_code == 404)
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return ka_not_found or mistral_not_found
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def is_over_limit(self, ex):
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# check for keystoneauth exceptions till requirements change
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# to python-mistralclient > 3.1.2
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ka_overlimit = isinstance(ex, ka_exceptions.RequestEntityTooLarge)
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mistral_overlimit = (isinstance(ex, mistral_base.APIException) and
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ex.error_code == 413)
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return ka_overlimit or mistral_overlimit
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def is_conflict(self, ex):
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# check for keystoneauth exceptions till requirements change
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# to python-mistralclient > 3.1.2
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ka_conflict = isinstance(ex, ka_exceptions.Conflict)
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mistral_conflict = (isinstance(ex, mistral_base.APIException) and
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ex.error_code == 409)
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return ka_conflict or mistral_conflict
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def get_workflow_by_identifier(self, workflow_identifier):
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try:
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return self.client().workflows.get(
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workflow_identifier)
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except Exception as ex:
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if self.is_not_found(ex):
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raise exception.EntityNotFound(
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entity="Workflow",
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name=workflow_identifier)
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raise
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class WorkflowConstraint(constraints.BaseCustomConstraint):
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resource_client_name = CLIENT_NAME
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resource_getter_name = 'get_workflow_by_identifier'
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expected_exceptions = (exception.EntityNotFound,)
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