public async static Task <bool> TryMergeAsync <TSource, TTarget>(this JObject jObject, Mapping <TSource[], IList <TTarget> > mapping, Func <TSource, TTarget, Task> asyncMerge)
where TTarget : class, new()
{
var token = jObject[mapping.Field];
if (token == null)
{
return(false);
}
var sources = token.Values <TSource>().ToArray();
mapping[sources] = await Task.WhenAll(
sources
.Select(async s =>
{
var t = new TTarget();
await asyncMerge(s, t);
return(t);
}));
return(true);
}
static JTask Optional <TSource, TTarget>(this JTask jTask, Mapping <TSource, TTarget> mapping, Func <TSource, TTarget> conversion)
{
jTask.TryConvert(mapping, conversion);
return(jTask);
}
public async static Task <bool> TryMergeAsync <TSource, TTarget>(this JObject jObject, Mapping <TSource, TTarget> mapping, Func <TSource, TTarget, Task> asyncMerge)
where TTarget : class
{
var token = jObject[mapping.Field];
if (token == null)
{
return(false);
}
var source = token.Value <TSource>();
var target = mapping[source];
if (target == null)
{
target = mapping[token.Value <TSource>()] = Activator.CreateInstance <TTarget>();
}
await asyncMerge(source, target);
return(true);
}
//public static JTask Optional<T>(this JTask jTask, Expression<Func<JObject[], IList<T>>> mapping, Action<JObject, T> merge)
// where T : class, new() =>
// jTask.Optional<JObject, T>(mapping, merge);
static JTask Optional <TSource, TTarget>(this JTask jTask, Mapping <TSource[], IList <TTarget> > mapping, Action <TSource, TTarget> merge)
where TTarget : class, new()
{
jTask.TryMerge(mapping, merge);
return(jTask);
}
public static async Task <bool> TryConvertAsync <TSource, TTarget>(this JObject jObject, Mapping <TSource[], IList <TTarget> > mapping, Func <TSource, Task <TTarget> > asyncConversion)
{
var token = jObject[mapping.Field];
if (token == null)
{
return(false);
}
mapping[token.Values <TSource>().ToArray()] = await Task.WhenAll(
token.Values <TSource>()
.Select(v => asyncConversion(v)));
return(true);
}
public static async Task <bool> TryConvertAsync <TSource, TTarget>(this JObject jObject, Mapping <TSource, TTarget> mapping, Func <TSource, Task <TTarget> > asyncConversion)
{
var token = jObject[mapping.Field];
if (token == null)
{
return(false);
}
mapping[token.Value <TSource>()] = await asyncConversion(token.Value <TSource>());
return(true);
}
static JTask Optional <TSource, TTarget>(this JTask jTask, Mapping <TSource[], IList <TTarget> > mapping)
{
jTask.TryCoerce(mapping);
return(jTask);
}