public override TypeCastResult TypeCastOnRead(object v, Type toType, bool fromUI, JsonReader.DocReadOptions options)
{
if (v is JsonDataMap map)
{
if (map.ContainsKey(nameof(Car.Mileage)))
{
return(new TypeCastResult(typeof(Car)));
}
if (map.ContainsKey(nameof(TV.ColorSystem)))
{
return(new TypeCastResult(typeof(TV)));
}
}
return(TypeCastResult.NothingChanged);
}
public override TypeCastResult TypeCastOnRead(object v, Type toType, bool fromUI, JsonReader.DocReadOptions options)
{
if (v is JsonDataMap map)
{
var tn = map[TYPE_MONIKER].AsString();
if (tn.IsNotNullOrWhiteSpace())
{
//we do not need this to appear in Amorphous data
map.Remove(TYPE_MONIKER);
//try to get the cast-to the type to the value specified in the $type parameter
var t = Type.GetType(typeof(JsonPolymorphicToDocTests).Namespace + '.' + nameof(JsonPolymorphicToDocTests) + '+' + tn, false, true);
//if cast-to type was found and is a subtype of BaseDoc for security
if (t != null && typeof(BaseDoc).IsAssignableFrom(t))
{
return(new TypeCastResult(t));
}
}
}
return(TypeCastResult.NothingChanged);
}
public override TypeCastResult TypeCastOnRead(object v, Type toType, bool fromUI, JsonReader.DocReadOptions options)
{
if (v is JsonDataMap map)
{
var tid = map[BIX_DISCRIMINATOR].AsGUID(Guid.Empty);
if (tid == Guid.Empty)
{
return(TypeCastResult.NothingChanged);
}
map.Remove(BIX_DISCRIMINATOR);
var tp = Bixer.GuidTypeResolver.TryResolve(tid);
//20201016DKh
if (tp == null)
{
if (ThrowOnUnresolvedType)
{
throw new BixException(StringConsts.BIX_JSON_HANDLER_UNRESOLVED_TYPE_ID_ERROR.Args(tid));
}
return(TypeCastResult.NothingChanged);
}
return(new TypeCastResult(tp));
}
return(TypeCastResult.NothingChanged);
}
public override TypeCastResult TypeCastOnRead(object v, Type toType, bool fromUI, JsonReader.DocReadOptions options)
{
if (v is JsonDataMap map)
{
foreach (var k in map.Keys)
{
if (PATTERNS.TryGetValue(k, out var type))
{
return(new TypeCastResult(type));
}
}
}
return(TypeCastResult.NothingChanged);
}
public override TypeCastResult TypeCastOnRead(object v, Type toType, bool fromUI, JsonReader.DocReadOptions options)
{
if (v is JsonDataMap map)
{
var result = new CustomStruct1 {
Name = map["n"].AsString(), Year = map["y"].AsInt()
};
return(new TypeCastResult(TypeCastOutcome.HandledCast, result, typeof(CustomStruct1)));
}
return(TypeCastResult.NothingChanged);
}
public override TypeCastResult TypeCastOnRead(object v, Type toType, bool fromUI, JsonReader.DocReadOptions options)
{
if (v is JsonDataMap map)
{
var t = map["_type"].AsString();
map.Remove("_type"); //block the field
if (t == nameof(EntityA))
{
return(new TypeCastResult(typeof(EntityA)));
}
if (t == nameof(EntityB))
{
return(new TypeCastResult(typeof(EntityB)));
}
}
return(TypeCastResult.NothingChanged);
}
public override TypeCastResult TypeCastOnRead(object v, Type toType, bool fromUI, JsonReader.DocReadOptions options)
{
if (v is JsonDataMap map)
{
var tid = map[BIX_DISCRIMINATOR].AsGUID(Guid.Empty);
if (tid == Guid.Empty)
{
return(TypeCastResult.NothingChanged);
}
map.Remove(BIX_DISCRIMINATOR);
var tp = Bixer.GuidTypeResolver.TryResolve(tid);
if (tp == null)
{
return(TypeCastResult.NothingChanged);
}
return(new TypeCastResult(tp));
}
return(TypeCastResult.NothingChanged);
}
