/// <summary>
/// Fetches the data for pre-configured languages and merges it to internally used dictionaries. First time the method is invoked it fetches the data only for missing languages.
/// On subsequent calls data for all configured languages is fetched and dictionary are cleared before fetched data is added / merged
/// </summary>
/// <param name="sender">A <see cref="ITimer"/> invoking the method</param>
/// <param name="e">The <see cref="EventArgs"/> providing additional information about the event which invoked the method</param>
private async void OnTimerElapsed(object sender, EventArgs e)
{
if (!await _semaphore.WaitAsyncSafe().ConfigureAwait(false))
{
return;
}
IList <CultureInfo> cultureInfos = new List <CultureInfo>();
try
{
var missingLanguages = _wasDataAutoFetched
? _requiredCultures
: _requiredCultures.Where(c => !FetchedCultures.Any()).ToList();
cultureInfos = missingLanguages as IList <CultureInfo> ?? missingLanguages.ToList();
if (cultureInfos.Any())
{
await FetchAndMergeAll(cultureInfos, _wasDataAutoFetched).ConfigureAwait(false);
ExecutionLog.Info($"Sport data for languages [{string.Join(",", cultureInfos)}] successfully fetched and merged.");
_wasDataAutoFetched = true;
}
}
catch (FeedSdkException ex)
{
ExecutionLog.Warn($"An exception occurred while attempting to fetch sport data for: {string.Join(",", cultureInfos)}. Exception was: {ex}");
}
catch (ObjectDisposedException)
{
ExecutionLog.Warn($"An exception occurred while attempting to fetch sport data for: {string.Join(",", cultureInfos)}. DataProvider was already disposed.");
}
catch (TaskCanceledException)
{
ExecutionLog.Warn($"An exception occurred while attempting to fetch sport data for: {string.Join(",", cultureInfos)}. Task canceled. DataProvider was already disposed.");
}
catch (Exception ex)
{
ExecutionLog.Warn($"An exception occurred while attempting to fetch sport data for: {string.Join(",", cultureInfos)}. Exception: {ex}");
}
finally
{
_semaphore.ReleaseSafe();
}
}
