114 lines
4.5 KiB
Python
114 lines
4.5 KiB
Python
# Copyright 2016 - Nokia, ZTE
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#
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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 oslo_log import log as logging
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from vitrage.common.constants import DatasourceProperties as DSProps
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from vitrage.common.constants import EntityCategory
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from vitrage.common.constants import VertexProperties as VProps
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from vitrage.datasources.resource_transformer_base import \
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ResourceTransformerBase
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from vitrage.datasources.static import STATIC_DATASOURCE
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from vitrage.datasources.static import StaticFields
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from vitrage.datasources import transformer_base
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import vitrage.graph.utils as graph_utils
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LOG = logging.getLogger(__name__)
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class StaticTransformer(ResourceTransformerBase):
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def _create_snapshot_entity_vertex(self, entity_event):
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return self._create_vertex(entity_event)
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def _create_update_entity_vertex(self, entity_event):
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return self._create_vertex(entity_event)
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def _create_snapshot_neighbors(self, entity_event):
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return self._create_static_neighbors(entity_event)
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def _create_update_neighbors(self, entity_event):
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return self._create_static_neighbors(entity_event)
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def _create_entity_key(self, entity_event):
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entity_id = entity_event[VProps.ID]
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entity_type = entity_event[StaticFields.TYPE]
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key_fields = self._key_values(entity_type, entity_id)
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return transformer_base.build_key(key_fields)
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@staticmethod
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def get_vitrage_type():
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return STATIC_DATASOURCE
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def _create_vertex(self, entity_event):
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entity_type = entity_event[StaticFields.TYPE]
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entity_category = entity_event.get(StaticFields.CATEGORY,
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EntityCategory.RESOURCE)
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entity_id = entity_event[VProps.ID]
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vitrage_sample_timestamp = entity_event[DSProps.SAMPLE_DATE]
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if entity_type in self.transformers:
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properties = {
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VProps.VITRAGE_TYPE: entity_type,
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VProps.ID: entity_id,
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VProps.VITRAGE_CATEGORY: entity_category,
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VProps.VITRAGE_SAMPLE_TIMESTAMP: vitrage_sample_timestamp,
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VProps.VITRAGE_IS_PLACEHOLDER: False
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}
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return self.create_neighbor_placeholder_vertex(**properties)
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else:
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entity_key = self._create_entity_key(entity_event)
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state = entity_event[VProps.STATE]
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update_timestamp = self._format_update_timestamp(
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update_timestamp=None,
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sample_timestamp=vitrage_sample_timestamp)
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metadata = entity_event.get(StaticFields.METADATA, {})
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return graph_utils.create_vertex(
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entity_key,
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vitrage_category=entity_category,
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vitrage_type=entity_type,
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vitrage_sample_timestamp=vitrage_sample_timestamp,
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entity_id=entity_id,
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update_timestamp=update_timestamp,
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entity_state=state,
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metadata=metadata)
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def _create_static_neighbor(self, entity_event, rel):
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if entity_event[StaticFields.STATIC_ID] == rel[StaticFields.SOURCE]:
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neighbor = rel[StaticFields.TARGET]
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is_entity_source = True
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elif entity_event[StaticFields.STATIC_ID] == rel[StaticFields.TARGET]:
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neighbor = rel[StaticFields.SOURCE]
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is_entity_source = False
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else:
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LOG.error("Invalid relationship {} in entity_event {}".format(
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rel, entity_event))
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return None
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if rel[StaticFields.SOURCE] == rel[StaticFields.TARGET]:
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neighbor = entity_event
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return self._create_neighbor(
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entity_event,
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neighbor[VProps.ID],
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neighbor[StaticFields.TYPE],
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rel[StaticFields.RELATIONSHIP_TYPE],
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is_entity_source=is_entity_source)
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def _create_static_neighbors(self, entity_event):
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relationships = entity_event.get(StaticFields.RELATIONSHIPS,
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[])
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return [self._create_static_neighbor(entity_event, rel)
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for rel in relationships]
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