protected override Task <DependencyResult <TDependencyInstance> > ResolveNewDependencyInstanceAsync(IDependencyResolutionContext context)
{
try {
var specs = context.EnsureNotNull(nameof(context)).Value.Specs;
//
var factoryArgs = ReadDA(ref _factoryArgs);
if (factoryArgs is null)
{
// Поскольку в данном обработчике явно не заданы параметры конструктора нового экземпляра, используются те, что указаны в спецификации, если они подходят для использования (см. код ниже).
//
if ((factoryArgs = specs.NewInstanceFactoryArgs as IArgsTuple <TArg1>) == null || factoryArgs.ArgsCount != __ArgsCount)
{
return(TaskUtilities.FromResult(DependencyResult <TDependencyInstance> .None));
}
}
else if (!(specs.NewInstanceFactoryArgs is null))
{
// Поскольку спецификацией явно определены параметры конструктора нового экземпляра, а также явно заданны в данном обработчике (factoryArgs != null), то получается конфликт.
//
return(TaskUtilities.FromResult(DependencyResult <TDependencyInstance> .None));
}
return
(TaskUtilities
.FromResult(
result:
new DependencyResult <TDependencyInstance>(
instance: ReadDA(ref _getDependencyCtor)()(factoryArgs.Arg1),
isNewInstance: true)));
}
catch (Exception exception) {
return(Task.FromException <DependencyResult <TDependencyInstance> >(exception));
}
}
protected override Task <DependencyResult <TDependencyInstance> > ResolveNewDependencyInstanceAsync(IDependencyResolutionContext context)
{
try {
var specs = context.EnsureNotNull(nameof(context)).Value.Specs;
//
var factoryArgs = ReadDA(ref _factoryArgs);
if (factoryArgs is null)
{
if ((factoryArgs = specs.NewInstanceFactoryArgs as IArgsTuple <TArg1, TArg2, TArg3, TArg4, TArg5>) == null || factoryArgs.ArgsCount != __ArgsCount)
{
return(TaskUtilities.FromResult(DependencyResult <TDependencyInstance> .None));
}
}
else if (specs.NewInstanceFactoryArgs != null)
{
return(TaskUtilities.FromResult(DependencyResult <TDependencyInstance> .None));
}
//
return
(TaskUtilities
.FromResult(
result:
new DependencyResult <TDependencyInstance>(
instance:
ReadDA(ref _getDependencyCtor)
()
(factoryArgs.Arg1, factoryArgs.Arg2, factoryArgs.Arg3, factoryArgs.Arg4, factoryArgs.Arg5),
isNewInstance: true)));
}
catch (Exception exception) {
return(Task.FromException <DependencyResult <TDependencyInstance> >(exception));
}
}
/// <inheritdoc />
public Task <string> GetTreatmentAsync(string featureName, string differentiator, string defaultTreatment)
{
// In general
// * INDETERMINATE_TREATMENT => return defaultTreatment
// * Should not be errors here, if there were an error updating rules or segments, it is transparent here.
var treatment = _features.TryGetValue(featureName, out Feature feature)
? feature.Treatments
.Where(x => x.Value.IncludedDifferentiators.Contains(differentiator))
.Select(x => x.Key)
.FirstOrDefault()
: null;
return(TaskUtilities.FromResult(treatment ?? defaultTreatment));
}
protected override Task <DependencyResult <TDependencyInstance> > ResolveNewDependencyInstanceAsync(IDependencyResolutionContext context)
{
try {
var specs = context.EnsureNotNull(nameof(context)).Value.Specs;
//
if ((specs.NewInstanceFactoryArgs?.ArgsCount ?? 0) != __ArgsCount)
{
return(TaskUtilities.FromResult(DependencyResult <TDependencyInstance> .None));
}
else
{
return
(TaskUtilities
.FromResult(
result:
new DependencyResult <TDependencyInstance>(
instance: ReadDA(ref _getDependencyCtor, considerDisposeRequest: true)()(),
isNewInstance: true)));
}
}
catch (Exception exception) {
return(Task.FromException <DependencyResult <TDependencyInstance> >(exception));
}
}
/// <inheritdoc /> public Task <SafeBrowsingStatus> CheckAsync(string url) => TaskUtilities.FromResult(Check(url));
static Func <IContext, Task <IVh <T> > > P_GetAcquireDelegate(Func <IVh <T> > acquire)
{
acquire.EnsureNotNull(nameof(acquire));
//
return((locContext) => TaskUtilities.FromResult(getter: acquire));
}
