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Adding a field property with auto loading & removing non-loaded fields from the json serialization. Reworking all json serialization

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Zoe Roux
2021-02-27 23:34:28 +01:00
parent 97ab1affa0
commit faf453e64a
30 changed files with 191 additions and 210 deletions
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Kyoo.CommonAPI/JsonSerializer.cs
+8 -86
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@@ -1,13 +1,5 @@
using System;
using System.Buffers;
using System.Collections.Generic;
using System.Reflection;
using Kyoo.Models;
using Kyoo.Models.Attributes;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.Filters;
using Microsoft.AspNetCore.Mvc.Formatters;
using Microsoft.Extensions.DependencyInjection;
using Newtonsoft.Json;
using Newtonsoft.Json.Serialization;
@@ -19,85 +11,15 @@ namespace Kyoo.Controllers
{
JsonProperty property = base.CreateProperty(member, memberSerialization);
property.ShouldSerialize = i => member.GetCustomAttribute<JsonReadOnly>(true) == null;
property.ShouldDeserialize = i => member.GetCustomAttribute<JsonIgnore>(true) == null;
// TODO this get called only once and get cached.
// if (member?.GetCustomAttributes<LoadableRelationAttribute>() != null)
// property.NullValueHandling = NullValueHandling.Ignore;
// if (member?.GetCustomAttributes<SerializeIgnoreAttribute>() != null)
// property.ShouldSerialize = _ => false;
// if (member?.GetCustomAttributes<DeserializeIgnoreAttribute>() != null)
// property.ShouldDeserialize = _ => false;
return property;
}
}
public class JsonPropertySelector : JsonPropertyIgnorer
{
private readonly Dictionary<Type, HashSet<string>> _ignored;
private readonly Dictionary<Type, HashSet<string>> _forceSerialize;
public JsonPropertySelector()
{
_ignored = new Dictionary<Type, HashSet<string>>();
_forceSerialize = new Dictionary<Type, HashSet<string>>();
}
public JsonPropertySelector(Dictionary<Type, HashSet<string>> ignored,
Dictionary<Type, HashSet<string>> forceSerialize = null)
{
_ignored = ignored ?? new Dictionary<Type, HashSet<string>>();
_forceSerialize = forceSerialize ?? new Dictionary<Type, HashSet<string>>();
}
private bool IsIgnored(Type type, string propertyName)
{
while (type != null)
{
if (_ignored.ContainsKey(type) && _ignored[type].Contains(propertyName))
return true;
type = type.BaseType;
}
return false;
}
private bool IsSerializationForced(Type type, string propertyName)
{
while (type != null)
{
if (_forceSerialize.ContainsKey(type) && _forceSerialize[type].Contains(propertyName))
return true;
type = type.BaseType;
}
return false;
}
protected override JsonProperty CreateProperty(MemberInfo member, MemberSerialization memberSerialization)
{
JsonProperty property = base.CreateProperty(member, memberSerialization);
if (IsSerializationForced(property.DeclaringType, property.PropertyName))
property.ShouldSerialize = i => true;
else if (IsIgnored(property.DeclaringType, property.PropertyName))
property.ShouldSerialize = i => false;
return property;
}
}
public class JsonDetailed : ActionFilterAttribute
{
public override void OnActionExecuted(ActionExecutedContext context)
{
if (context.Result is ObjectResult result)
{
result.Formatters.Add(new NewtonsoftJsonOutputFormatter(
new JsonSerializerSettings
{
ContractResolver = new JsonPropertySelector(null, new Dictionary<Type, HashSet<string>>
{
{typeof(Show), new HashSet<string> {"genres", "studio"}},
{typeof(Episode), new HashSet<string> {"tracks"}},
{typeof(PeopleRole), new HashSet<string> {"show"}}
})
},
context.HttpContext.RequestServices.GetRequiredService<ArrayPool<char>>(),
new MvcOptions()));
}
}
}
}