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DiscriminatedInterfaceSerializationProvider.cs
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DiscriminatedInterfaceSerializationProvider.cs
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/* 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.
*/
using System;
using System.Reflection;
using MongoDB.Bson.Serialization.Serializers;
namespace MongoDB.Bson.Serialization
{
/// <summary>
/// Provides a serializer for interfaces.
/// </summary>
public class DiscriminatedInterfaceSerializationProvider : BsonSerializationProviderBase
{
/// <inheritdoc/>
public override IBsonSerializer GetSerializer(Type type, IBsonSerializerRegistry serializerRegistry)
{
if (type == null)
{
throw new ArgumentNullException("type");
}
var typeInfo = type.GetTypeInfo();
if (typeInfo.IsGenericType && typeInfo.ContainsGenericParameters)
{
var message = string.Format("Generic type {0} has unassigned type parameters.", BsonUtils.GetFriendlyTypeName(type));
throw new ArgumentException(message, "type");
}
if (typeInfo.IsInterface)
{
var serializerTypeDefinition = typeof(DiscriminatedInterfaceSerializer<>);
return CreateGenericSerializer(serializerTypeDefinition, new[] { type }, serializerRegistry);
}
return null;
}
}
}