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using Newtonsoft.Json;
using Newtonsoft.Json.Serialization;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;
namespace Tango.BL.Serialization
{
public class SerializableEntityContractResolver : DefaultContractResolver
{
private EntitySerializationStrategy _serializationStrategy;
private EntitySerializationFlags _flags;
private EntitySerializationStrategy _current_object_strategy;
public SerializableEntityContractResolver(EntitySerializationStrategy serializationStrategy, EntitySerializationFlags flags)
{
_serializationStrategy = serializationStrategy;
_flags = flags;
}
protected override JsonObjectContract CreateObjectContract(Type objectType)
{
_current_object_strategy = new EntitySerializationStrategy();
if (typeof(ISerializableEntity).IsAssignableFrom(objectType))
{
_current_object_strategy = (Activator.CreateInstance(objectType) as ISerializableEntity).GetDefaultSerializationStrategy(_flags);
}
return base.CreateObjectContract(objectType);
}
protected override JsonProperty CreateProperty(MemberInfo member, MemberSerialization memberSerialization)
{
var ignore_props = _serializationStrategy.IgnoreProperties.Concat(_current_object_strategy.IgnoreProperties).Where(x => x != null).Distinct().ToList();
var include_props = _serializationStrategy.IncludeProperties.Concat(_current_object_strategy.IncludeProperties).Where(x => x != null).Distinct().ToList();
JsonProperty property = base.CreateProperty(member, memberSerialization);
property.Ignored = false;
property.ShouldSerialize = (x) =>
{
MemberInfo mi = member;
return (!ignore_props.Exists(y => y.DeclaringType.IsAssignableFrom(mi.DeclaringType) && y.ToString() == mi.ToString()))
||
(include_props.Exists(y => y.DeclaringType.IsAssignableFrom(mi.DeclaringType) && y.ToString() == mi.ToString()));
};
property.ShouldDeserialize = (x) =>
{
MemberInfo mi = member;
return (!ignore_props.Exists(y => y.DeclaringType.IsAssignableFrom(mi.DeclaringType) && y.ToString() == mi.ToString()))
||
(include_props.Exists(y => y.DeclaringType.IsAssignableFrom(mi.DeclaringType) && y.ToString() == mi.ToString()));
};
return property;
}
}
}
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