private async Task ValidateCache()
{
if (IsCacheValid)
{
return;
}
try
{
_cachedItems = await _wrappedReader.GetPeopleAsync();
_dataDateTime = DateTime.Now;
}
catch
{
_cachedItems = new List <Person>()
{
new Person()
{
GivenName = "No Data Available",
FamilyName = string.Empty,
Rating = 0,
StartDate = DateTime.Today,
}
};
InvalidateCache();
}
}
public Task <ViewResult> WithTask()
{
ViewData["Title"] = "Using Task";
ViewData["RequestStart"] = DateTime.Now;
Task <IReadOnlyCollection <Person> > peopleTask = reader.GetPeopleAsync();
Task <ViewResult> resultTask = peopleTask.ContinueWith(task =>
{
if (task.IsFaulted)
{
var errors = task.Exception !.Flatten().InnerExceptions;
return(View("Error", errors));
}
IReadOnlyCollection <Person> people = task.Result;
ViewData["RequestEnd"] = DateTime.Now;
return(View("Index", people));
});
return(resultTask);
}
public async Task <List <Person> > GetPeopleAsync()
{
try
{
return(await _wrappedReader.GetPeopleAsync());
}
catch (Exception ex)
{
await _logger?.LogException(ex);
throw;
}
}
public async Task <List <Person> > GetPeopleAsync()
{
_retryCount++;
try
{
var people = await _wrappedReader.GetPeopleAsync();
_retryCount = 0;
return(people);
}
catch (Exception)
{
if (_retryCount >= 3)
{
throw;
}
await Task.Delay(_retryDelay);
return(await this.GetPeopleAsync());
}
}
public async Task RefreshPeople()
{
People = await Reader.GetPeopleAsync();
}