SerializerConfigurator.cs

/* Copyright 2010-present MongoDB Inc.
 *
 * 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.
 */

usingSystem;
usingSystem.Collections.Generic;

namespaceMongoDB.Bson.Serialization
{
internalstaticclassSerializerConfigurator
{
// Reconfigures a serializer recursively.
// The reconfigure Func should return null if it does not apply to a given serializer.
internalstaticIBsonSerializerReconfigureSerializerRecursively(
IBsonSerializerserializer,
Func<IBsonSerializer,IBsonSerializer>reconfigure)
{
switch(serializer)
{
// check IMultipleChildSerializersConfigurableSerializer first because some serializers implement both interfaces
caseIMultipleChildSerializersConfigurablemultipleChildSerializerConfigurable:
{
varanyChildSerializerWasReconfigured=false;
varreconfiguredChildSerializers=newList<IBsonSerializer>();

foreach(varchildSerializerinmultipleChildSerializerConfigurable.ChildSerializers)
{
varreconfiguredChildSerializer=ReconfigureSerializerRecursively(childSerializer,reconfigure);
anyChildSerializerWasReconfigured|=reconfiguredChildSerializer!=null;
reconfiguredChildSerializers.Add(reconfiguredChildSerializer??childSerializer);
}

returnanyChildSerializerWasReconfigured?multipleChildSerializerConfigurable.WithChildSerializers(reconfiguredChildSerializers.ToArray()):null;
}

caseIChildSerializerConfigurablechildSerializerConfigurable:
{
varchildSerializer=childSerializerConfigurable.ChildSerializer;
varreconfiguredChildSerializer=ReconfigureSerializerRecursively(childSerializer,reconfigure);
returnreconfiguredChildSerializer!=null?childSerializerConfigurable.WithChildSerializer(reconfiguredChildSerializer):null;
}

default:
returnreconfigure(serializer);
}
}
}
}