87 lines
2.6 KiB
Python
87 lines
2.6 KiB
Python
# Copyright 2016 Tesora, Inc.
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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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import oslo_messaging as messaging
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from osprofiler import profiler
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from trove.common.context import TroveContext
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class TroveSerializer(messaging.Serializer):
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"""The Trove serializer class that handles class inheritance and base
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serializers.
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"""
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def __init__(self, base):
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self._base = base
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def _serialize_entity(self, context, entity):
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return entity
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def serialize_entity(self, context, entity):
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if self._base:
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entity = self._base.serialize_entity(context, entity)
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return self._serialize_entity(context, entity)
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def _deserialize_entity(self, context, entity):
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return entity
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def deserialize_entity(self, context, entity):
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entity = self._deserialize_entity(context, entity)
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if self._base:
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entity = self._base.deserialize_entity(context, entity)
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return entity
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def _serialize_context(self, context):
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return context
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def serialize_context(self, context):
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if self._base:
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context = self._base.serialize_context(context)
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return self._serialize_context(context)
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def _deserialize_context(self, context):
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return context
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def deserialize_context(self, context):
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context = self._deserialize_context(context)
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if self._base:
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context = self._base.deserialize_context(context)
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return context
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class TroveRequestContextSerializer(TroveSerializer):
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def _serialize_context(self, context):
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_context = context.to_dict()
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prof = profiler.get()
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if prof:
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trace_info = {
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"hmac_key": prof.hmac_key,
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"base_id": prof.get_base_id(),
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"parent_id": prof.get_id()
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}
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_context.update({"trace_info": trace_info})
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return _context
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def _deserialize_context(self, context):
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trace_info = context.pop("trace_info", None)
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if trace_info:
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profiler.init(**trace_info)
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return TroveContext.from_dict(context)
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