public virtual void Apply([NotNull] BsonMemberMap memberMap)
{
Check.NotNull(memberMap, nameof(memberMap));
if (memberMap.MemberType.TryGetSequenceType() != null)
{
memberMap.SetShouldSerializeMethod(@object =>
{
object value = memberMap.Getter(@object);
return((value as IEnumerable)?.GetEnumerator().MoveNext() ?? false);
});
}
}
public void Apply(BsonMemberMap memberMap)
{
if (!typeof(IEnumerable).IsAssignableFrom(memberMap.MemberType) || //Allow IEnumerable
typeof(string) == memberMap.MemberType || //But not String
typeof(IDictionary).IsAssignableFrom(memberMap.MemberType)) //Or Dictionary (concrete classes only see below)
{
return;
}
//*NOTE Microsoft was too stupid to make the generic dictionary interfaces implement IDictonary even though every single concrete class does
// They were also too stupid to make generic IDictionary implement IReadOnlyDictionary even though every single concrete class does I believe this should catch all
if (memberMap.MemberType.IsGenericType && memberMap.MemberType.IsInterface)
{
var genericType = memberMap.MemberType.GetGenericTypeDefinition();
if (genericType == typeof(IDictionary <,>) || genericType == typeof(IReadOnlyDictionary <,>))
{
return;
}
}
if (memberMap.MemberType.IsArray) //Load Empty Array
{
memberMap.SetDefaultValue(() => Array.CreateInstance(memberMap.MemberType.GetElementType(), 0));
}
else if (!memberMap.MemberType.IsInterface) //Create ConcreteType directly
{
memberMap.SetDefaultValue(() => Activator.CreateInstance(memberMap.MemberType));
}
else if (memberMap.MemberType.IsGenericType) //Generic Interface type
{
var interfaceType = memberMap.MemberType.GetGenericTypeDefinition();
var concreteType = InterfaceToConcreteMap.ContainsKey(interfaceType)
? InterfaceToConcreteMap[interfaceType]
: DefaultType;
memberMap.SetDefaultValue(() => Activator.CreateInstance(concreteType.MakeGenericType(memberMap.MemberType.GetGenericArguments())));
}
else //This should just be the antique non generic interfaces like ICollection, IEnumerable, etc.
{
memberMap.SetDefaultValue(() => Activator.CreateInstance(typeof(List <object>)));
}
memberMap.SetShouldSerializeMethod(instance =>
{
var value = (IEnumerable)memberMap.Getter(instance);
return(value?.GetEnumerator().MoveNext() ?? false);
});
}
private static void ShouldSerializeIfNotDefault(BsonMemberMap memberMap, string defaultString) => memberMap.SetShouldSerializeMethod(@object => !string.Equals(defaultString, memberMap.Getter(@object) as string));
private static void ShouldSerializeIfNotEmpty(BsonMemberMap memberMap) => memberMap.SetShouldSerializeMethod(@object => !string.IsNullOrEmpty(memberMap.Getter(@object) as string));
