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Diffstat (limited to 'keystone/openstack/common/rpc/serializer.py')
-rw-r--r-- | keystone/openstack/common/rpc/serializer.py | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/keystone/openstack/common/rpc/serializer.py b/keystone/openstack/common/rpc/serializer.py new file mode 100644 index 00000000..76c68310 --- /dev/null +++ b/keystone/openstack/common/rpc/serializer.py @@ -0,0 +1,52 @@ +# Copyright 2013 IBM Corp. +# +# 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 +# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +# License for the specific language governing permissions and limitations +# under the License. + +"""Provides the definition of an RPC serialization handler""" + +import abc + + +class Serializer(object): + """Generic (de-)serialization definition base class.""" + __metaclass__ = abc.ABCMeta + + @abc.abstractmethod + def serialize_entity(self, context, entity): + """Serialize something to primitive form. + + :param context: Security context + :param entity: Entity to be serialized + :returns: Serialized form of entity + """ + pass + + @abc.abstractmethod + def deserialize_entity(self, context, entity): + """Deserialize something from primitive form. + + :param context: Security context + :param entity: Primitive to be deserialized + :returns: Deserialized form of entity + """ + pass + + +class NoOpSerializer(Serializer): + """A serializer that does nothing.""" + + def serialize_entity(self, context, entity): + return entity + + def deserialize_entity(self, context, entity): + return entity |